/* src/styles.css */
@tailwind base;
@tailwind components;
@tailwind utilities;
:root {
  --pip-navy: #0b2878;
  --pip-navy-dark: #071b53;
  --pip-blue-soft: #eaf0fb;
  --pip-blue-line: #c8d5f0;
  --pip-green: #21864f;
  --pip-green-soft: #e9f7ef;
  --pip-orange: #bd6611;
  --pip-orange-soft: #fff3e6;
  --pip-purple: #6b4bb8;
  --pip-red: #b93630;
  --pip-text: #172033;
  --pip-muted: #5d6678;
  --pip-bg: #f5f7fb;
  --pip-card: #ffffff;
  --pip-shadow: 0 14px 34px rgba(11, 40, 120, 0.12);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}
* {
  box-sizing: border-box;
}
html {
  background: var(--pip-bg);
  overflow-y: scroll;
  scrollbar-gutter: stable;
}
body {
  margin: 0;
  color: var(--pip-text);
  background:
    radial-gradient(
      circle at top left,
      #ffffff 0,
      #f4f7ff 42%,
      #eef3fb 100%);
  min-height: 100vh;
}
button {
  font-family: inherit;
}
.app-shell {
  min-height: 100vh;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.top-nav {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem clamp(1rem, 4vw, 2.5rem);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--pip-blue-line);
  backdrop-filter: blur(10px);
}
.brand-button {
  border: 0;
  background: transparent;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--pip-navy);
  cursor: pointer;
  text-align: left;
}
.brand-button small {
  display: block;
  color: var(--pip-muted);
  font-size: 0.75rem;
  margin-top: 0.1rem;
}
.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 1rem;
  background: var(--pip-navy);
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.04em;
}
.top-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  justify-content: flex-end;
}
.top-links button,
.small-link {
  border: 1px solid var(--pip-blue-line);
  background: #fff;
  color: var(--pip-navy);
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 750;
}
.top-links button.active,
.top-links button:hover,
.small-link:hover {
  color: #fff;
  background: var(--pip-navy);
  border-color: var(--pip-navy);
}
.page-wrap {
  width: min(1280px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1rem 0 2.25rem;
}
.hero-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  padding: clamp(1.2rem, 3vw, 1.8rem);
  border: 1px solid var(--pip-blue-line);
  border-radius: 2rem;
  background:
    linear-gradient(
      135deg,
      #ffffff 0%,
      #edf3ff 100%);
  box-shadow: var(--pip-shadow);
  margin-bottom: 1.35rem;
}
.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pip-navy);
  margin-bottom: 0.35rem;
}
h1,
h2,
h3 {
  color: var(--pip-navy-dark);
  margin: 0;
  line-height: 1.08;
}
h1 {
  font-size: clamp(1.9rem, 3.7vw, 3.2rem);
  letter-spacing: -0.04em;
}
h2 {
  font-size: clamp(1.35rem, 2.3vw, 2rem);
}
h3 {
  font-size: 1.22rem;
}
p {
  line-height: 1.5;
}
.hero-card p,
.section-header p,
.compact-header p {
  color: var(--pip-muted);
  font-size: 1.04rem;
  max-width: 760px;
}
.compact-header {
  margin: 0.35rem 0 1rem;
}
.compact-header h1 {
  font-size: clamp(1.75rem, 3vw, 2.65rem);
}
.utility-row,
.hero-actions,
.journey-start-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: center;
  margin: 0.8rem 0 1rem;
}
.primary-action,
.secondary-action,
.support-action {
  border-radius: 999px;
  padding: 0.78rem 1.1rem;
  font-weight: 800;
  cursor: pointer;
  transition:
    transform 0.16s ease,
    box-shadow 0.16s ease,
    background 0.16s ease;
}
.primary-action {
  border: 0;
  color: #fff;
  background: var(--pip-navy);
  box-shadow: 0 10px 22px rgba(11, 40, 120, 0.24);
}
.secondary-action {
  color: var(--pip-navy);
  background: #fff;
  border: 1px solid var(--pip-blue-line);
}
.support-action {
  border: 0;
  color: #fff;
  background: var(--pip-orange);
  box-shadow: 0 10px 22px rgba(189, 102, 17, 0.2);
}
.primary-action:hover,
.secondary-action:hover,
.support-action:hover,
.tile:hover {
  transform: translateY(-2px);
}
.section-header {
  margin: 1.45rem 0 1rem;
}
.tile-grid {
  display: grid;
  gap: 1rem;
}
.zone-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.scenario-grid,
.option-grid,
.question-route-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.picture-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.tile {
  text-align: left;
  border: 1px solid var(--pip-blue-line);
  border-radius: 1.5rem;
  padding: 1rem;
  background: var(--pip-card);
  cursor: pointer;
  min-height: 170px;
  box-shadow: 0 10px 22px rgba(11, 40, 120, 0.06);
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}
.tile:disabled {
  cursor: not-allowed;
  opacity: 0.72;
  transform: none;
}
.tile img {
  width: 100%;
  height: 135px;
  object-fit: cover;
  object-position: center;
  border-radius: 1rem;
  border: 1px solid var(--pip-blue-line);
  margin-bottom: 0.75rem;
  background: #fff;
}
.picture-tile img {
  height: 150px;
}
.tile h3 {
  margin: 0.45rem 0 0.35rem;
}
.tile p {
  color: var(--pip-muted);
  margin: 0;
}
.tile-status {
  display: inline-flex;
  width: fit-content;
  border-radius: 999px;
  background: var(--pip-blue-soft);
  color: var(--pip-navy);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.32rem 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.active-tile {
  border-color: rgba(11, 40, 120, 0.45);
}
.preview-tile {
  background: #f8f9fc;
}
.kettle-steps-layout {
  align-items: start;
}
.kettle-steps-frame {
  border: 1px solid var(--pip-navy);
  background: #fff;
}
.kettle-steps-header {
  border: 0;
  padding-bottom: 0.65rem;
}
.kettle-steps-header h1 {
  font-size: clamp(2rem, 4vw, 3.5rem);
}
.kettle-steps-intro {
  padding: 0.8rem 1rem;
  border-top: 1px solid var(--pip-navy);
  border-bottom: 1px solid var(--pip-blue-line);
  background: #fff;
  text-align: center;
}
.kettle-steps-intro p {
  margin: 0;
  color: var(--pip-navy);
  font-size: 1.14rem;
  font-weight: 850;
}
.kettle-step-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
  padding: 1rem;
}
.kettle-step-card {
  display: grid;
  grid-template-columns: 9.5rem minmax(0, 1fr);
  align-items: center;
  gap: 0.85rem;
  min-height: 8.4rem;
  border: 1px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  color: var(--pip-navy);
  cursor: pointer;
  padding: 0.65rem;
  text-align: left;
  transition:
    transform 0.16s ease,
    box-shadow 0.16s ease,
    border-color 0.16s ease;
}
.kettle-step-card:hover {
  border-color: var(--pip-navy);
  box-shadow: 0 10px 20px rgba(11, 40, 120, 0.12);
  transform: translateY(-2px);
}
.kettle-step-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  object-position: center;
  border: 1px solid var(--pip-blue-line);
  border-radius: 0.55rem;
  background: #fff;
}
.kettle-step-card span {
  display: grid;
  gap: 0.26rem;
}
.kettle-step-card b {
  width: fit-content;
  border-radius: 999px;
  background: var(--pip-blue-soft);
  color: var(--pip-navy);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  padding: 0.28rem 0.62rem;
}
.kettle-step-card strong {
  color: var(--pip-navy);
  font-size: 1.22rem;
  line-height: 1.08;
}
.kettle-step-card em {
  color: var(--pip-muted);
  font-size: 0.95rem;
  font-style: normal;
  font-weight: 700;
  line-height: 1.28;
}
.viewer-page {
  margin-top: 0.25rem;
}
.viewer-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 0.75rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--pip-blue-line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--pip-muted);
}
.viewer-strip strong {
  color: var(--pip-navy);
}
.viewer-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 1rem;
  align-items: start;
}
.viewer-layout.active-journey-viewer-layout {
  grid-template-columns: minmax(0, 1fr) 260px;
}
.viewer-main {
  min-width: 0;
}
.kettle-entry-page .viewer-strip {
  margin-bottom: 0.75rem;
}
.kettle-entry-layout {
  align-items: start;
}
.kettle-entry-frame {
  border: 1px solid var(--pip-navy);
  background:
    linear-gradient(
      135deg,
      #ffffff 0%,
      #f8fbff 54%,
      #f3f7ff 100%);
  box-shadow: var(--pip-shadow);
  color: var(--pip-navy-dark);
  overflow: hidden;
  padding: clamp(0.9rem, 1.6vw, 1.2rem);
}
.kettle-entry-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.28fr) minmax(270px, 0.72fr);
  gap: clamp(1rem, 2.2vw, 1.65rem);
  align-items: center;
}
.kettle-entry-hero-copy h1 {
  color: var(--pip-navy-dark);
  font-size: clamp(1.7rem, 2.28vw, 2.58rem);
  font-weight: 950;
  letter-spacing: 0;
  line-height: 1.03;
  margin: 0;
  max-width: 760px;
}
.kettle-entry-hero-copy h1 span {
  display: block;
}
.kettle-entry-title-line {
  white-space: nowrap;
}
.kettle-entry-title-line.navy {
  color: var(--pip-navy-dark);
}
.kettle-entry-title-line.purple {
  color: var(--pip-purple);
}
.kettle-entry-hero-copy p {
  color: var(--pip-navy-dark);
  font-size: clamp(0.96rem, 1.05vw, 1.12rem);
  font-weight: 650;
  line-height: 1.38;
  margin: 0.85rem 0 0;
  max-width: 570px;
}
.kettle-entry-hero img {
  display: block;
  width: 100%;
  min-height: 220px;
  max-height: 300px;
  object-fit: cover;
  object-position: center;
}
.kettle-entry-stage-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.45rem);
  margin-top: clamp(0.95rem, 1.5vw, 1.25rem);
}
.kettle-entry-stage-cluster {
  position: relative;
  min-width: 0;
}
.kettle-entry-stage-arrow {
  position: absolute;
  top: 50%;
  right: calc(clamp(1rem, 2vw, 1.45rem) * -0.86);
  z-index: 2;
  display: inline-grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: 999px;
  border: 1px solid var(--pip-blue-line);
  background: #fff;
  box-shadow: 0 8px 20px rgba(11, 40, 120, 0.14);
  color: var(--pip-purple);
  font-size: 2rem;
  font-weight: 900;
  transform: translate(50%, -50%);
}
.kettle-entry-stage-arrow.green {
  color: var(--pip-green);
}
.kettle-entry-stage-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  border: 2px solid var(--pip-blue-line);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 12px 28px rgba(11, 40, 120, 0.08);
  padding: clamp(0.9rem, 1.5vw, 1.2rem);
}
.kettle-entry-stage-card.purple {
  border-color: rgba(107, 75, 184, 0.68);
}
.kettle-entry-stage-card.green {
  border-color: rgba(33, 134, 79, 0.55);
  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.9),
      rgba(243, 252, 247, 0.94));
}
.kettle-entry-stage-card.blue {
  border-color: rgba(38, 127, 222, 0.55);
}
.kettle-entry-stage-card header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: center;
}
.kettle-entry-stage-number,
.kettle-entry-idea-number {
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  color: #fff;
  font-weight: 950;
}
.kettle-entry-stage-number {
  width: 2.25rem;
  height: 2.25rem;
  background: var(--pip-purple);
  font-size: 1.15rem;
}
.green .kettle-entry-stage-number {
  background: var(--pip-green);
}
.blue .kettle-entry-stage-number {
  background: #267fde;
}
.kettle-entry-stage-card h2 {
  color: var(--pip-navy-dark);
  font-size: clamp(1.45rem, 1.85vw, 1.85rem);
  font-weight: 950;
  letter-spacing: 0;
}
.kettle-entry-stage-card > p {
  color: var(--pip-navy-dark);
  font-size: 0.9rem;
  font-weight: 650;
  line-height: 1.38;
  margin: 0.9rem 0 1rem;
}
.kettle-entry-diagram {
  position: relative;
  display: inline-block;
  width: 4.4rem;
  height: 4rem;
}
.kettle-entry-diagram.kettle-diagram {
  width: 4.65rem;
  height: 4rem;
  overflow: visible;
}
.kettle-entry-diagram.kettle-diagram path {
  fill: none;
  stroke: var(--pip-navy-dark);
  stroke-width: 4;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.kettle-entry-diagram.kettle-diagram .steam,
.kettle-entry-diagram.kettle-diagram .water-line {
  stroke: #4aaee8;
  stroke-width: 4;
}
.kettle-entry-diagram.kettle-diagram .water-fill {
  fill: #bfe6ff;
  stroke: none;
}
.kettle-body {
  position: absolute;
  right: 0.15rem;
  bottom: 0.35rem;
  width: 3rem;
  height: 2.45rem;
  border: 3px solid var(--pip-navy-dark);
  border-radius: 0.3rem 0.3rem 0.75rem 0.75rem;
  background:
    linear-gradient(
      #ffffff 45%,
      #9cd7ff 46%,
      #ccecff 100%);
}
.kettle-body::before {
  content: "";
  position: absolute;
  right: -0.75rem;
  top: 0.55rem;
  width: 0.95rem;
  height: 1rem;
  border: 3px solid var(--pip-navy-dark);
  border-left: 0;
  border-radius: 0 999px 999px 0;
}
.kettle-body::after {
  content: "";
  position: absolute;
  left: 0.35rem;
  right: 0.35rem;
  top: -0.45rem;
  height: 0.28rem;
  border-radius: 999px;
  background: var(--pip-navy-dark);
}
.kettle-body b {
  position: absolute;
  left: 0.25rem;
  right: 0.25rem;
  top: 1rem;
  height: 0.25rem;
  border-radius: 999px;
  background: #4aaee8;
}
.kettle-steam {
  position: absolute;
  top: 0.2rem;
  width: 0.35rem;
  height: 2.2rem;
  border-left: 3px solid #4aaee8;
  border-radius: 50%;
}
.kettle-steam.one {
  left: 0.2rem;
}
.kettle-steam.two {
  left: 0.95rem;
  top: 0.05rem;
}
.energy-waves,
.energy-waves::before,
.energy-waves::after {
  position: absolute;
  left: 0;
  width: 2.2rem;
  height: 0.55rem;
  border-top: 3px solid #5cab70;
  border-radius: 50%;
  content: "";
}
.energy-waves {
  top: 0.85rem;
}
.energy-waves::before {
  top: 0.75rem;
}
.energy-waves::after {
  top: 1.5rem;
}
.energy-drop {
  position: absolute;
  right: 0.2rem;
  top: 0.2rem;
  display: grid;
  place-items: center;
  width: 2.35rem;
  height: 3rem;
  border: 2px solid var(--pip-green);
  border-radius: 55% 55% 55% 12%;
  background: #79cb72;
  color: #fff;
  font-style: normal;
  font-weight: 950;
  transform: rotate(45deg);
}
.energy-drop::first-letter {
  transform: rotate(-45deg);
}
.practice-diagram {
  border: 3px solid #267fde;
  border-radius: 0.35rem;
}
.practice-diagram::before {
  content: "";
  position: absolute;
  left: 1.3rem;
  top: -0.55rem;
  width: 1.6rem;
  height: 0.8rem;
  border-radius: 0.35rem 0.35rem 0 0;
  background: #267fde;
}
.practice-diagram i,
.practice-diagram b,
.practice-diagram::after {
  content: "";
  position: absolute;
  left: 0.7rem;
  width: 2.6rem;
  height: 0.25rem;
  border-radius: 999px;
  background: #8fbbea;
}
.practice-diagram i {
  top: 1rem;
}
.practice-diagram b {
  top: 1.8rem;
}
.practice-diagram::after {
  top: 2.6rem;
}
.kettle-entry-idea-list {
  display: grid;
  gap: 0;
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  border: 1px solid var(--pip-blue-line);
  border-radius: 0.8rem;
  background: rgba(255, 255, 255, 0.72);
  overflow: hidden;
}
.kettle-entry-idea-list li {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  gap: 0.65rem;
  align-items: center;
  min-height: 2.35rem;
  border-bottom: 1px solid var(--pip-blue-line);
  color: var(--pip-navy-dark);
  font-size: 0.92rem;
  font-weight: 700;
  line-height: 1.18;
  padding: 0.4rem 0.55rem;
}
.kettle-entry-idea-list li:last-child {
  border-bottom: 0;
}
.kettle-entry-idea-number {
  width: 1.6rem;
  height: 1.6rem;
  background: var(--pip-purple);
  font-size: 0.9rem;
}
.kettle-entry-mini-icon {
  position: relative;
  display: inline-block;
  width: 1.8rem;
  height: 1.45rem;
}
.kettle-entry-mini-icon.heat::before {
  content: "";
  position: absolute;
  inset: 0.18rem 0.25rem 0.1rem;
  border: 2px solid var(--pip-navy-dark);
  border-radius: 0.22rem 0.22rem 0.55rem 0.55rem;
  background: linear-gradient(#fff 48%, #9cd7ff 49%);
}
.kettle-entry-mini-icon.transfer::before,
.kettle-entry-mini-icon.transfer::after {
  content: "";
  position: absolute;
  left: 0.1rem;
  width: 1.25rem;
  height: 0.42rem;
  border-top: 2px solid #ff7b1a;
  border-radius: 50%;
}
.kettle-entry-mini-icon.transfer::before {
  top: 0.25rem;
}
.kettle-entry-mini-icon.transfer::after {
  top: 0.75rem;
}
.kettle-entry-mini-icon.particles::before {
  content: "";
  position: absolute;
  inset: 0.08rem;
  border: 2px solid var(--pip-navy);
  border-radius: 999px;
  background:
    radial-gradient(
      circle at 35% 35%,
      #4aaee8 0 9%,
      transparent 10%),
    radial-gradient(
      circle at 65% 38%,
      #4aaee8 0 9%,
      transparent 10%),
    radial-gradient(
      circle at 47% 65%,
      #4aaee8 0 9%,
      transparent 10%);
}
.kettle-entry-mini-icon.power::before {
  content: "";
  position: absolute;
  inset: 0.15rem;
  border: 2px solid var(--pip-blue-line);
  border-bottom-color: var(--pip-red);
  border-left-color: #267fde;
  border-radius: 999px 999px 0 0;
}
.kettle-entry-mini-icon.power::after {
  content: "";
  position: absolute;
  left: 0.86rem;
  bottom: 0.25rem;
  width: 0.65rem;
  height: 2px;
  background: var(--pip-red);
  transform: rotate(-35deg);
  transform-origin: left center;
}
.kettle-entry-mini-icon.battery::before {
  content: "";
  position: absolute;
  inset: 0.08rem 0.35rem;
  border: 3px solid #236f5a;
  border-radius: 0.2rem;
}
.kettle-entry-mini-icon.battery::after {
  content: "";
  position: absolute;
  top: 0.45rem;
  left: 0.78rem;
  width: 0.38rem;
  height: 0.72rem;
  background: #236f5a;
  clip-path: polygon(48% 0, 100% 0, 66% 43%, 100% 43%, 36% 100%, 48% 55%, 10% 55%);
}
.kettle-entry-support-panel {
  display: grid;
  align-items: center;
  border: 1px solid var(--pip-blue-line);
  border-radius: 0.75rem;
  background: rgba(255, 255, 255, 0.72);
  color: var(--pip-navy-dark);
  margin: auto 0 1rem;
  min-height: 6.2rem;
  padding: 0.9rem;
}
.kettle-entry-support-panel.energy {
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 0.65rem;
  text-align: center;
}
.kettle-entry-support-panel.energy span {
  display: grid;
  justify-items: center;
  gap: 0.35rem;
}
.kettle-entry-support-panel.energy strong {
  color: var(--pip-green);
  font-size: 1.6rem;
}
.kettle-entry-support-panel.energy b,
.kettle-entry-support-panel.practice span {
  font-size: 0.98rem;
  line-height: 1.2;
}
.kettle-entry-support-panel.practice {
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.8rem;
}
.kettle-entry-graduation-icon {
  display: inline-block;
  width: 3rem;
  height: 2rem;
  background: #267fde;
  clip-path: polygon(50% 0, 100% 35%, 50% 70%, 0 35%);
}
.kettle-entry-stage-action {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  width: 100%;
  border: 2px solid currentColor;
  border-radius: 0.65rem;
  background: #fff;
  color: var(--pip-purple);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 950;
  margin-top: auto;
  min-height: 3.15rem;
  padding: 0.7rem 1rem;
}
.purple .kettle-entry-stage-action {
  border: 0;
  background: var(--pip-purple);
  color: #fff;
}
.green .kettle-entry-stage-action {
  color: var(--pip-green);
}
.blue .kettle-entry-stage-action {
  color: #267fde;
}
.kettle-entry-stage-action:hover,
.kettle-entry-stage-action:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(11, 40, 120, 0.12);
  transform: translateY(-1px);
}
.image-stage {
  border: 1px solid var(--pip-blue-line);
  background: #fff;
  border-radius: 1.4rem;
  padding: 0.65rem;
  box-shadow: var(--pip-shadow);
}
.image-stage img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 1rem;
  background: #fff;
}
.active-journey-frame {
  width: 100%;
}
.active-journey-canvas {
  position: relative;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 1672 / 941;
  border: 1px solid var(--pip-navy);
  background: #fff;
  color: var(--pip-navy);
  box-shadow: var(--pip-shadow);
}
.active-journey-design {
  position: absolute;
  inset: 0 auto auto 0;
  transform-origin: top left;
}
.active-journey-background,
.active-journey-title,
.active-journey-divider,
.active-journey-narration,
.active-journey-callout,
.active-journey-banner {
  position: absolute;
}
.active-journey-background {
  object-fit: cover;
}
.active-journey-title {
  display: grid;
  place-items: center;
  margin: 0;
  color: var(--pip-navy);
  font-size: 92px;
  font-weight: 900;
  letter-spacing: 0;
  line-height: 0.98;
  text-align: center;
}
.active-journey-divider {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
}
.active-journey-divider i {
  display: block;
  height: 3px;
  background: var(--pip-navy);
}
.active-journey-divider span {
  display: block;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 999px;
  background: var(--pip-navy);
  transform: translateY(-0.5px);
}
.active-journey-narration {
  top: 2.1rem;
  right: 2.5rem;
  z-index: 4;
}
.active-journey-callout {
  z-index: 3;
  background: #fff;
}
.active-journey-callout-card {
  position: absolute;
  top: 4%;
  right: 5%;
  bottom: 6%;
  left: 15.2%;
  display: flex;
  align-items: flex-start;
  border: 3px solid var(--pip-navy);
  border-radius: 1rem;
  background: #fff;
  padding: 1.55rem 1.95rem 1.2rem 4.25rem;
}
.active-journey-callout p {
  margin: 0;
  max-width: 100%;
  color: var(--pip-navy);
  font-size: 30px;
  font-weight: 500;
  line-height: 1.18;
}
.active-journey-icon-badge {
  position: absolute;
  top: 11%;
  left: -13.5%;
  display: grid;
  place-items: center;
  width: 5.8rem;
  height: 5.8rem;
  border-radius: 999px;
  background: var(--pip-navy);
}
.active-kettle-icon {
  position: relative;
  display: block;
  width: 3.15rem;
  height: 2.65rem;
  border: 3px solid #fff;
  border-radius: 0.28rem;
}
.active-kettle-icon::before {
  content: "";
  position: absolute;
  left: 0.25rem;
  top: -1rem;
  width: 2.35rem;
  height: 0.65rem;
  border-top: 3px solid #fff;
}
.active-kettle-icon::after {
  content: "";
  position: absolute;
  right: -1.05rem;
  top: 0.45rem;
  width: 0.75rem;
  height: 1.25rem;
  border: 3px solid #fff;
  border-left: 0;
  border-radius: 0 999px 999px 0;
}
.active-kettle-icon span {
  position: absolute;
  left: 0.35rem;
  top: -1.55rem;
  width: 2rem;
  height: 0.25rem;
  background: #fff;
}
.active-journey-banner {
  z-index: 3;
  display: grid;
  place-items: center;
  border-radius: 0.9rem;
  background: var(--pip-navy);
  padding: 0 1.6rem;
}
.active-journey-banner p {
  margin: 0;
  color: #fff;
  font-size: 36px;
  font-weight: 900;
  line-height: 1.05;
  text-align: center;
}
.active-journey-footer-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 0.9rem;
  border: 1px solid var(--pip-blue-line);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.92);
  padding: 0.75rem;
}
.active-journey-footer-secondary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}
.active-journey-content-page {
  display: grid;
  gap: 0;
}
.active-journey-page-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: start;
  gap: 1rem;
  border: 1px solid var(--pip-navy);
  border-bottom: 0;
  background: #fff;
  padding: 0.8rem 1.2rem 0.55rem;
  color: var(--pip-navy);
}
.active-journey-page-header h1 {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(2rem, 3.35vw, 3.2rem);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: 0;
  text-align: center;
}
.active-journey-page-divider {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  margin-top: 0.6rem;
}
.active-journey-page-divider i {
  display: block;
  height: 3px;
  background: var(--pip-navy);
}
.active-journey-page-divider span {
  display: block;
  width: 0.75rem;
  height: 0.75rem;
  border-radius: 999px;
  background: var(--pip-navy);
}
.active-journey-image-frame {
  justify-self: center;
  width: 100%;
  border: 1px solid var(--pip-navy);
  border-top: 0;
  background: #fff;
  padding: 0;
  box-shadow: var(--pip-shadow);
}
.active-journey-image-frame img {
  display: block;
  width: 100%;
  height: auto;
  background: #fff;
}
.active-journey-content-banner {
  display: grid;
  place-items: center;
  border: 1px solid var(--pip-navy);
  border-top: 0;
  background: #fff;
  padding: 0.75rem 1rem 1rem;
  box-shadow: var(--pip-shadow);
}
.active-journey-content-banner p {
  width: min(100%, 68rem);
  margin: 0;
  border-radius: 0.7rem;
  background: var(--pip-navy);
  color: #fff;
  padding: 0.7rem 1.15rem;
  font-size: clamp(1.05rem, 1.45vw, 1.45rem);
  font-weight: 900;
  line-height: 1.1;
  text-align: center;
}
.active-journey-staged-page {
  gap: 0;
}
.active-journey-staged-page .active-journey-page-header h1 {
  font-size: 2.55rem;
  line-height: 1.05;
  white-space: nowrap;
}
.staged-idea-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(24rem, 34%);
  align-items: start;
  gap: 0;
  border: 1px solid var(--pip-navy);
  border-top: 0;
  background: #fff;
  box-shadow: var(--pip-shadow);
}
.staged-image-frame {
  position: relative;
  align-self: start;
  min-width: 0;
  overflow: hidden;
  background: #fff;
  aspect-ratio: 1672 / 941;
}
.staged-image-frame img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  transform: translateY(5.5%);
}
.staged-transfer-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.staged-transfer-layer {
  opacity: 0;
  animation: staged-layer-enter 420ms ease-out forwards;
}
.staged-text-panel {
  display: grid;
  align-content: start;
  gap: 0.65rem;
  border-left: 1px solid var(--pip-blue-line);
  background: #fff;
  padding: 0.8rem;
}
.staged-energy-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0.85rem;
  border: 2px solid var(--pip-navy);
  border-radius: 0.9rem;
  background: #fff;
  padding: 0.7rem;
}
.staged-energy-card p {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(0.88rem, 1vw, 1rem);
  font-weight: 700;
  line-height: 1.28;
}
.staged-energy-card button {
  grid-column: 1 / -1;
  justify-self: end;
}
.staged-energy-card .staged-support-action {
  border-color: #168246;
  background: #e9f8ef;
  color: #07572d;
}
.staged-energy-card .staged-support-action:hover,
.staged-energy-card .staged-support-action:focus-visible {
  border-color: #0f6b38;
  background: #d7f1e1;
  color: #064624;
}
.physics-icon-badge {
  display: grid;
  place-items: center;
  width: 3.4rem;
  height: 3.4rem;
  border-radius: 999px;
  background: var(--pip-navy);
  flex: 0 0 auto;
}
.physics-icon-badge::before {
  content: "";
  width: 2.25rem;
  height: 2.25rem;
  border: 3px solid #fff;
  border-radius: 999px;
  background:
    linear-gradient(
      90deg,
      transparent 46%,
      #fff 46% 54%,
      transparent 54%),
    linear-gradient(
      30deg,
      transparent 47%,
      #fff 47% 53%,
      transparent 53%),
    linear-gradient(
      150deg,
      transparent 47%,
      #fff 47% 53%,
      transparent 53%);
}
.staged-physics-icon-badge {
  display: block;
  width: 4.2rem;
  height: 4.2rem;
  background-image: url("data:image/svg+xml,%3Csvg width='84' height='84' viewBox='0 0 84 84' xmlns='http://www.w3.org/2000/svg'%3E%3Cellipse cx='42' cy='42' rx='35' ry='10' fill='none' stroke='%23071b54' stroke-width='2.6'/%3E%3Cellipse cx='42' cy='42' rx='35' ry='10' fill='none' stroke='%23071b54' stroke-width='2.6' transform='rotate(60 42 42)'/%3E%3Cellipse cx='42' cy='42' rx='35' ry='10' fill='none' stroke='%23071b54' stroke-width='2.6' transform='rotate(-60 42 42)'/%3E%3Ccircle cx='42' cy='42' r='8' fill='%236b4bb8'/%3E%3C/svg%3E");
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  flex: 0 0 auto;
}
.staged-text-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0.65rem;
  min-height: 4.05rem;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #f8fbff;
  padding: 0.52rem 0.65rem;
  color: var(--pip-muted);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
}
.staged-text-card span {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border: 3px solid currentColor;
  border-radius: 999px;
  font-size: 1.1rem;
  font-weight: 900;
}
.staged-text-card p {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(0.84rem, 0.96vw, 0.96rem);
  font-weight: 800;
  line-height: 1.22;
}
.staged-text-card.orange.is-visible {
  border-color: #f97316;
  background: #fff7ed;
  color: #f97316;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  animation: staged-card-enter 260ms ease-out forwards;
}
.staged-text-card.blue.is-visible {
  border-color: #1d7ed8;
  background: #eff6ff;
  color: #1d7ed8;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  animation: staged-card-enter 260ms ease-out forwards;
}
@keyframes staged-card-enter {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes staged-layer-enter {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.active-journey-icon-message {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 1.1rem;
  border: 1px solid var(--pip-navy);
  border-top: 0;
  background: #fff;
  padding: 0.85rem 1.25rem;
  box-shadow: var(--pip-shadow);
}
.active-journey-icon-message p {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(1.15rem, 1.55vw, 1.55rem);
  font-weight: 700;
  line-height: 1.15;
}
.active-journey-staged-page .active-journey-icon-message p {
  font-size: 1.15rem;
  font-weight: 800;
  line-height: 1.1;
  white-space: nowrap;
}
.active-journey-concept-page {
  gap: 0;
}
.active-journey-concept-page .active-journey-page-header h1 {
  max-width: 100%;
  font-size: clamp(1.7rem, 3vw, 2.15rem);
  line-height: 1.05;
  white-space: normal;
  overflow-wrap: anywhere;
}
.image-led-concept-grid {
  display: grid;
  grid-template-columns: minmax(0, 72%) minmax(16rem, 28%);
  align-items: stretch;
  gap: 0;
  border: 1px solid var(--pip-navy);
  border-top: 0;
  background: #fff;
  box-shadow: var(--pip-shadow);
  overflow: hidden;
}
.concept-image-stage {
  position: relative;
  min-height: 27rem;
  aspect-ratio: 1000 / 620;
  overflow: hidden;
  background:
    linear-gradient(
      180deg,
      #fff 0%,
      #f9fbff 100%);
  z-index: 1;
}
.concept-particle-svg {
  display: block;
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
}
.concept-particle-connector {
  stroke: var(--pip-navy);
  stroke-width: 3;
  stroke-linecap: round;
}
.concept-particle-zoom-fill {
  fill: #dceeff;
}
.concept-particle-zoom-outline,
.concept-particle-target {
  fill: transparent;
  stroke: var(--pip-navy);
  stroke-width: 5;
}
.particle-model-dot {
  fill: url(#particle-dot-gradient);
}
.concept-text-panel {
  position: relative;
  z-index: 3;
  min-width: 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-content: start;
  gap: 0.9rem;
  border-left: 1px solid var(--pip-blue-line);
  background: #fff;
  padding: 1rem;
}
.concept-text-panel ol {
  grid-column: 1 / -1;
  display: grid;
  gap: 0.72rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.concept-text-panel li {
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.8rem;
  background: #f8fbff;
  color: var(--pip-navy);
  padding: 0.65rem 0.8rem;
  font-size: clamp(0.95rem, 1.05vw, 1.08rem);
  font-weight: 800;
  line-height: 1.2;
}
.concept-support-action {
  grid-column: 1 / -1;
  justify-self: end;
  border-color: #168246;
  background: #e9f8ef;
  color: #07572d;
}
.concept-support-action:hover,
.concept-support-action:focus-visible {
  border-color: #0f6b38;
  background: #d7f1e1;
  color: #064624;
}
.concept-key-message p {
  font-size: 1.28rem;
  font-weight: 900;
  line-height: 1.08;
  white-space: nowrap;
}
.concept-popup-backdrop {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  background: rgba(7, 27, 84, 0.35);
  padding: 1.5rem;
}
.concept-popup {
  display: flex;
  flex-direction: column;
  width: min(44rem, 94vw);
  max-height: min(42rem, 90vh);
  overflow: hidden;
  border: 2px solid var(--pip-navy);
  border-radius: 1rem;
  background: #fff;
  box-shadow: 0 1.4rem 3rem rgba(7, 27, 84, 0.22);
  box-sizing: border-box;
}
.concept-popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: 1px solid var(--pip-blue-line);
  padding: 1rem 1.1rem;
}
.concept-popup-header h2 {
  margin: 0;
  color: var(--pip-navy);
  font-size: 1.45rem;
  line-height: 1.1;
}
.concept-popup-body {
  display: grid;
  gap: 0.7rem;
  padding: 1rem 1.1rem 1.2rem;
  overflow-y: auto;
  scrollbar-gutter: stable;
}
.concept-popup-body p {
  margin: 0;
  color: var(--pip-navy);
  font-size: 1rem;
  line-height: 1.42;
}
.concept-popup-body strong {
  font-weight: 900;
}
.active-journey-temperature-page {
  gap: 0;
}
.active-journey-temperature-page .active-journey-page-header h1 {
  max-width: 100%;
  font-size: clamp(1.65rem, 3vw, 2.15rem);
  line-height: 1.05;
  white-space: normal;
  overflow-wrap: anywhere;
}
.temperature-comparison-grid {
  display: grid;
  grid-template-columns: minmax(0, 69%) minmax(16rem, 31%);
  align-items: stretch;
  gap: 0;
  border: 1px solid var(--pip-navy);
  border-top: 0;
  background: #fff;
  box-shadow: var(--pip-shadow);
  overflow: hidden;
}
.temperature-comparison-stage {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  align-items: center;
  min-height: 24rem;
  border-right: 1px solid var(--pip-blue-line);
  background:
    linear-gradient(
      180deg,
      #fff 0%,
      #f9fbff 100%);
  padding: 1.15rem;
}
.temperature-context-row {
  display: grid;
  grid-template-columns: minmax(8rem, 13rem) minmax(0, 1fr);
  align-items: center;
  gap: 0.9rem;
  width: min(100%, 38rem);
  margin: 0 auto 0.8rem;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.85rem;
  background: #fff;
  padding: 0.5rem 0.75rem;
}
.temperature-context-row img {
  display: block;
  width: 100%;
  max-height: 7.2rem;
  object-fit: contain;
}
.temperature-context-row p {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(0.95rem, 1.15vw, 1.1rem);
  font-weight: 900;
  line-height: 1.15;
}
.temperature-panels-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 2.4rem;
  align-items: stretch;
}
.temperature-particle-card {
  position: relative;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 0.45rem;
  min-width: 0;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  padding: 0.85rem 0.85rem 1.6rem;
}
.temperature-particle-card h2 {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  font-weight: 900;
  line-height: 1.05;
  text-align: center;
}
.temperature-particle-card p {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(0.9rem, 1.1vw, 1rem);
  font-weight: 800;
  line-height: 1.18;
  min-height: 2.25rem;
  padding-left: 1.85rem;
  text-align: center;
}
.temperature-particle-svg {
  display: block;
  width: 100%;
  aspect-ratio: 380 / 230;
}
.temperature-particle-panel-bg {
  fill: #e7f4ff;
}
.temperature-particle-panel-outline {
  fill: transparent;
  stroke: var(--pip-navy);
  stroke-width: 4;
}
.temperature-particle-dot {
  filter: drop-shadow(0 1px 1px rgba(7, 27, 84, 0.22));
}
.temperature-transfer-arrow {
  position: absolute;
  top: 50%;
  right: -2.28rem;
  z-index: 2;
  width: 2.1rem;
  height: 1.65rem;
  transform: translateY(-50%);
  color: var(--pip-navy);
}
.temperature-transfer-arrow::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 0;
  width: 1.65rem;
  height: 0.42rem;
  border-radius: 999px;
  background: currentColor;
  transform: translateY(-50%);
}
.temperature-transfer-arrow::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 0;
  width: 0;
  height: 0;
  border-top: 0.65rem solid transparent;
  border-bottom: 0.65rem solid transparent;
  border-left: 0.88rem solid currentColor;
  transform: translateY(-50%);
}
.temperature-thermometer {
  position: absolute;
  left: 0.65rem;
  bottom: 1rem;
  width: 0.9rem;
  height: 2.2rem;
  border: 2px solid var(--pip-navy);
  border-radius: 999px 999px 0.45rem 0.45rem;
  background: #fff;
}
.temperature-thermometer::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -0.35rem;
  width: 1.2rem;
  height: 1.2rem;
  border: 2px solid var(--pip-navy);
  border-radius: 999px;
  background: #fff;
  transform: translateX(-50%);
}
.temperature-thermometer::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -0.08rem;
  width: 0.42rem;
  height: 1.35rem;
  border-radius: 999px;
  background: #2a7fd4;
  transform: translateX(-50%);
}
.temperature-thermometer.higher::after {
  height: 2rem;
  background: #d92929;
}
.temperature-concept-panel {
  position: relative;
  min-width: 0;
  display: grid;
  align-content: start;
  gap: 0.85rem;
  background: #fff;
  padding: 1rem;
}
.temperature-concept-panel .staged-physics-icon-badge {
  justify-self: center;
  width: 3.8rem;
  height: 3.8rem;
}
.temperature-concept-panel ol {
  display: grid;
  gap: 0.62rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.temperature-concept-panel li {
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.8rem;
  background: #f8fbff;
  color: var(--pip-navy);
  padding: 0.62rem 0.75rem;
  font-size: clamp(0.88rem, 1vw, 1rem);
  font-weight: 800;
  line-height: 1.18;
}
.temperature-key-message p {
  font-size: clamp(1rem, 1.8vw, 1.28rem);
  font-weight: 900;
  line-height: 1.08;
}
.active-journey-power-page {
  gap: 0;
}
.active-journey-power-page .active-journey-page-header h1 {
  max-width: 100%;
  font-size: clamp(1.95rem, 3.2vw, 2.75rem);
  line-height: 1.05;
  white-space: normal;
}
.power-comparison-grid {
  display: grid;
  grid-template-columns: minmax(0, 68%) minmax(17rem, 32%);
  align-items: stretch;
  gap: 0;
  border: 1px solid var(--pip-navy);
  border-top: 0;
  background: #fff;
  box-shadow: var(--pip-shadow);
  overflow: hidden;
}
.power-animation-panel {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
  gap: 0.85rem;
  min-height: 29rem;
  border-right: 1px solid var(--pip-blue-line);
  background:
    linear-gradient(
      180deg,
      #fff 0%,
      #f9fbff 100%);
  padding: 1rem;
}
.power-comparison-caption {
  margin: 0;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.8rem;
  background: #fff;
  color: var(--pip-navy);
  padding: 0.6rem 0.85rem;
  font-size: clamp(0.95rem, 1.2vw, 1.08rem);
  font-weight: 900;
  line-height: 1.15;
  text-align: center;
}
.power-animation-controls {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}
.power-animation-controls .primary-action {
  justify-self: auto;
}
.power-timer {
  justify-self: center;
  display: inline-grid;
  grid-template-columns: auto auto;
  align-items: center;
  gap: 0.55rem;
  border: 2px solid var(--pip-blue-line);
  border-radius: 999px;
  background: #fff;
  color: var(--pip-navy);
  padding: 0.45rem 0.8rem;
  font-weight: 900;
}
.power-timer span {
  color: var(--pip-muted);
}
.power-timer strong {
  min-width: 3.6rem;
  text-align: right;
}
.power-kettle-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1rem;
  align-items: stretch;
}
.power-kettle-card {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
  gap: 0.55rem;
  min-width: 0;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.95rem;
  background: #fff;
  padding: 0.78rem;
}
.power-kettle-label {
  display: grid;
  justify-items: center;
  gap: 0.28rem;
}
.power-kettle-label strong {
  min-width: 6.4rem;
  border-radius: 0.55rem;
  background: var(--pip-navy);
  color: #fff;
  padding: 0.35rem 0.8rem;
  font-size: clamp(1.15rem, 2vw, 1.65rem);
  line-height: 1;
  text-align: center;
}
.power-kettle-label span {
  color: var(--pip-navy);
  font-size: 0.98rem;
  font-weight: 900;
  line-height: 1.05;
}
.power-kettle-visual {
  position: relative;
  display: grid;
  align-items: end;
  min-height: 12rem;
  overflow: hidden;
}
.power-kettle-visual img {
  display: block;
  justify-self: center;
  width: min(100%, 17rem);
  max-height: 14rem;
  object-fit: contain;
}
.power-kettle-thermometer {
  position: absolute;
  right: 0.35rem;
  bottom: 1rem;
  width: 1.15rem;
  height: 9.8rem;
  border: 2px solid var(--pip-navy);
  border-radius: 999px;
  background: #fff;
  overflow: hidden;
}
.power-kettle-thermometer::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0.18rem;
  width: 0.62rem;
  height: 0.62rem;
  border-radius: 999px;
  background: #d92929;
  transform: translateX(-50%);
  z-index: 2;
}
.power-kettle-thermometer span {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: block;
  min-height: 7%;
  border-radius: 999px 999px 0 0;
  background:
    linear-gradient(
      180deg,
      #ff6a4e 0%,
      #d92929 100%);
  transition: height 0.12s linear;
}
.power-temperature-readout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.55rem;
  min-height: 3.1rem;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.75rem;
  background: #f8fbff;
  padding: 0.5rem 0.65rem;
  color: var(--pip-navy);
}
.power-temperature-readout strong {
  font-size: clamp(1.25rem, 1.75vw, 1.55rem);
  font-weight: 900;
  line-height: 1;
  text-align: right;
  white-space: nowrap;
}
.power-temperature-readout span {
  font-size: clamp(0.82rem, 1vw, 0.98rem);
  font-weight: 800;
  line-height: 1.12;
  color: var(--pip-muted);
}
.power-meaning-panel {
  display: grid;
  align-content: start;
  gap: 0.8rem;
  background: #fff;
  padding: 1rem;
}
.power-meaning-panel article {
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.85rem;
  background: #f8fbff;
  color: var(--pip-navy);
  padding: 0.75rem 0.85rem;
}
.power-meaning-panel h2 {
  margin: 0 0 0.32rem;
  color: #0b63b6;
  font-size: clamp(0.95rem, 1.1vw, 1.08rem);
  font-weight: 900;
  line-height: 1.05;
}
.power-meaning-panel p {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(0.95rem, 1.1vw, 1.08rem);
  font-weight: 800;
  line-height: 1.18;
  white-space: pre-line;
}
.power-remember-card {
  display: grid;
  gap: 0.55rem;
}
.power-remember-heading {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 0.7rem;
}
.power-remember-heading h2 {
  margin: 0;
}
.power-remember-heading .staged-physics-icon-badge {
  width: 3.4rem;
  height: 3.4rem;
}
.power-key-message p {
  font-size: clamp(1rem, 1.8vw, 1.28rem);
  font-weight: 900;
  line-height: 1.08;
}
.active-journey-equation-page {
  gap: 0;
}
.active-journey-equation-page .active-journey-page-header h1 {
  max-width: 100%;
  font-size: clamp(1.75rem, 3vw, 2.35rem);
  line-height: 1.05;
  white-space: normal;
}
.equation-bridge-grid {
  display: grid;
  grid-template-columns: minmax(0, 64%) minmax(18rem, 36%);
  align-items: stretch;
  gap: 0;
  border: 1px solid var(--pip-navy);
  border-top: 0;
  background: #fff;
  box-shadow: var(--pip-shadow);
  overflow: hidden;
}
.equation-bridge-main {
  display: grid;
  align-content: start;
  gap: 0.7rem;
  border-right: 1px solid var(--pip-blue-line);
  background:
    linear-gradient(
      180deg,
      #fff 0%,
      #f9fbff 100%);
  padding: 1rem;
}
.equation-bridge-intro {
  margin: 0;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.8rem;
  background: #fff;
  color: var(--pip-navy);
  padding: 0.65rem 0.85rem;
  font-size: clamp(1rem, 1.35vw, 1.2rem);
  font-weight: 900;
  line-height: 1.12;
  text-align: center;
}
.journey-keyword-highlight {
  display: inline-block;
  border: 1px solid #d29a17;
  border-radius: 0.32rem;
  background: #fff0a8;
  color: var(--pip-navy);
  padding: 0 0.22rem;
  font-weight: 950;
}
.equation-card {
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.85rem;
  background: #fff;
  color: var(--pip-navy);
  padding: 0.68rem 0.85rem;
}
.equation-card h2,
.equation-support-panel h2 {
  margin: 0 0 0.52rem;
  color: #0b63b6;
  font-size: clamp(0.98rem, 1.2vw, 1.14rem);
  font-weight: 900;
  line-height: 1.05;
}
.equation-card p {
  margin: 0 0 0.6rem;
  color: var(--pip-navy);
  font-size: 0.98rem;
  font-weight: 800;
  line-height: 1.18;
}
.equation-lines {
  display: grid;
  gap: 0.55rem;
}
.equation-lines div {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  gap: 0.7rem;
  border-radius: 0.7rem;
  background: #f8fbff;
  padding: 0.55rem 0.65rem;
}
.equation-lines span {
  color: var(--pip-muted);
  font-size: 0.88rem;
  font-weight: 900;
}
.equation-lines strong {
  color: var(--pip-navy);
  font-size: clamp(1.08rem, 1.8vw, 1.45rem);
  font-weight: 900;
  line-height: 1.08;
}
.equation-card-primary .equation-lines strong,
.equation-card-rearranged .equation-lines strong {
  font-size: clamp(1.12rem, 1.9vw, 1.55rem);
}
.equation-symbol-list {
  display: grid;
  gap: 0.34rem;
  margin: 0;
}
.equation-symbol-list div {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  align-items: center;
  gap: 0.5rem;
}
.equation-symbol-list dt {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  background: var(--pip-navy);
  color: #fff;
  font-weight: 900;
}
.equation-symbol-list dd {
  margin: 0;
  color: var(--pip-navy);
  font-weight: 850;
}
.equation-unit-list {
  display: grid;
  gap: 0.2rem;
  margin: 0 0 0.55rem;
  padding-left: 1.05rem;
  color: var(--pip-navy);
  font-weight: 850;
  line-height: 1.15;
}
.equation-watt-note {
  border-radius: 0.7rem;
  background: #f8fbff;
  padding: 0.48rem 0.58rem;
  color: var(--pip-navy);
  font-size: 0.9rem;
  font-weight: 850;
  line-height: 1.16;
}
.equation-unit-link {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 0.5rem;
}
.equation-unit-link strong {
  display: grid;
  place-items: center;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.7rem;
  background: #fff;
  color: var(--pip-navy);
  padding: 0.42rem;
  font-size: clamp(0.88rem, 1vw, 1rem);
  font-weight: 900;
  line-height: 1.1;
  text-align: center;
}
.equation-card-rearranged {
  border-color: #168246;
  background: #f2fbf5;
}
.equation-support-panel {
  display: grid;
  align-content: start;
  gap: 0.7rem;
  background:
    linear-gradient(
      180deg,
      #fff 0%,
      #f8fbff 100%);
  padding: 0.9rem;
}
.equation-support-panel .staged-physics-icon-badge {
  justify-self: center;
  width: 3.1rem;
  height: 3.1rem;
}
.equation-support-panel h2 {
  margin: 0;
  text-align: center;
}
.equation-support-card {
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.85rem;
  background: #fff;
  color: var(--pip-navy);
  padding: 0.68rem 0.78rem;
}
.equation-support-card h2 {
  margin: 0 0 0.48rem;
}
.equation-support-actions {
  display: grid;
  gap: 0.55rem;
}
.equation-support-actions-inline {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem;
}
.equation-support-actions .secondary-action {
  width: 100%;
  min-height: 2.35rem;
  padding: 0.42rem 0.5rem;
  white-space: nowrap;
}
.equation-support-actions .concept-support-action {
  grid-column: auto;
  justify-self: stretch;
}
.equation-key-message p {
  font-size: clamp(0.98rem, 1.65vw, 1.18rem);
  font-weight: 900;
  line-height: 1.08;
}
.active-energy-intro-page {
  gap: 0;
}
.active-energy-intro-page .active-journey-page-header h1 {
  font-size: clamp(2.2rem, 4.2vw, 3.8rem);
  line-height: 0.95;
}
.energy-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 78%) minmax(12rem, 22%);
  align-items: stretch;
  gap: 0;
  border: 1px solid var(--pip-navy);
  border-top: 0;
  background: #fff;
  box-shadow: var(--pip-shadow);
  overflow: hidden;
}
.energy-intro-montage {
  position: relative;
  min-height: 25rem;
  overflow: hidden;
  background: #fff;
}
.energy-intro-montage img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.energy-intro-callout {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 0.8rem;
  border-left: 1px solid var(--pip-blue-line);
  background: #fff;
  padding: 1rem;
  color: var(--pip-navy);
}
.energy-intro-callout p {
  margin: 0;
  border: 2px solid var(--pip-navy);
  border-radius: 0.95rem;
  background: #fff;
  padding: 1.2rem 1rem;
  font-size: clamp(1.15rem, 1.8vw, 1.65rem);
  font-weight: 850;
  line-height: 1.25;
  text-align: center;
}
.energy-intro-house-icon {
  display: grid;
  place-items: center;
  width: 4.2rem;
  height: 4.2rem;
  border-radius: 999px;
  background: var(--pip-navy);
  color: #fff;
  font-size: 2.8rem;
  font-weight: 900;
  line-height: 1;
}
.energy-intro-key-message {
  background: var(--pip-navy);
  border-color: var(--pip-navy);
  color: #fff;
}
.energy-intro-key-message p {
  color: #fff;
  font-size: clamp(1.05rem, 1.8vw, 1.45rem);
  font-weight: 900;
  line-height: 1.08;
}
.energy-message-physics-icon {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 4.25rem;
  height: 4.25rem;
  border-radius: 999px;
  background: #fff;
  border: 2px solid var(--pip-navy);
}
.energy-message-physics-icon .staged-physics-icon-badge {
  width: 3.7rem;
  height: 3.7rem;
}
.active-energy-change-page {
  gap: 0.6rem;
  border: 1px solid var(--pip-navy);
  background: #fff;
  padding: 0.65rem;
}
.active-energy-change-page .active-journey-page-header {
  border: 0;
  padding: 0.35rem 1rem 0.3rem;
}
.active-energy-change-page .active-journey-page-header h1 {
  max-width: 100%;
  font-size: clamp(1.45rem, 2.25vw, 2.2rem);
  line-height: 1.12;
  text-wrap: balance;
}
.active-energy-change-page .active-journey-page-divider {
  margin-top: 0.4rem;
}
.energy-change-bridge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.95rem;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  padding: 0.45rem 1rem;
  color: var(--pip-navy);
  text-align: center;
}
.energy-change-bridge p {
  margin: 0;
  font-size: clamp(1rem, 1.55vw, 1.35rem);
  font-weight: 900;
  line-height: 1.1;
}
.energy-change-bridge-icon {
  flex: 0 0 auto;
  width: 5rem;
  height: 2.65rem;
  background-image: url("./media/ec02_bridge_icon_original-ZSETUQJ3.png");
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
}
.energy-change-examples {
  border: 2px solid var(--pip-blue-line);
  border-radius: 1rem;
  background: #fff;
  padding: 0.65rem 0.75rem;
}
.energy-change-prompt {
  margin: 0 0 0.55rem;
  color: var(--pip-navy);
  font-size: clamp(1rem, 1.4vw, 1.25rem);
  font-weight: 900;
  line-height: 1.12;
  text-align: center;
}
.energy-change-card-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
}
.energy-change-card {
  display: grid;
  grid-template-rows: minmax(8.6rem, 1fr) auto;
  min-width: 0;
  overflow: hidden;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.85rem;
  background: #fff;
  box-shadow: 0 0.35rem 1rem rgba(20, 56, 125, 0.08);
}
.energy-change-card-image {
  min-height: 8.6rem;
  background: #f7fbff;
  overflow: hidden;
}
.energy-change-card-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.energy-change-card-text {
  display: grid;
  border-top: 2px solid var(--pip-blue-line);
  padding: 0.62rem 0.65rem;
  color: var(--pip-navy);
  text-align: center;
}
.energy-change-card-text p {
  margin: 0;
}
.energy-change-card-text p {
  font-size: clamp(1rem, 1.35vw, 1.22rem);
  font-weight: 950;
  line-height: 1.08;
}
.energy-change-key-message {
  background: #fff;
  border-color: var(--pip-navy);
  border-top: 1px solid var(--pip-navy);
  color: var(--pip-navy);
}
.energy-change-key-message p {
  color: var(--pip-navy);
  font-size: clamp(1rem, 1.55vw, 1.28rem);
  font-weight: 900;
  line-height: 1.12;
}
.energy-change-key-message .energy-message-physics-icon {
  background: #fff;
  border-color: var(--pip-navy);
}
.active-energy-accounting-page {
  gap: 0.55rem;
  border: 1px solid var(--pip-navy);
  background: #fff;
  padding: 0.65rem;
}
.active-energy-accounting-page .active-journey-page-header {
  border: 0;
  padding: 0.35rem 1rem 0.25rem;
}
.active-energy-accounting-page .active-journey-page-header h1 {
  max-width: 100%;
  font-size: clamp(1.8rem, 3.2vw, 3rem);
  line-height: 1;
  text-wrap: balance;
}
.active-energy-accounting-page .active-journey-page-divider {
  margin-top: 0.45rem;
}
.energy-accounting-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.8rem;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  padding: 0.5rem 0.75rem;
}
.energy-accounting-intro p {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(1rem, 1.35vw, 1.22rem);
  font-weight: 900;
  line-height: 1.12;
}
.inline-support-action {
  border: 1.5px solid var(--pip-green);
  background: var(--pip-green-soft);
  color: #006b38;
  border-radius: 999px;
  padding: 0.5rem 0.85rem;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 950;
  cursor: pointer;
}
.inline-support-action:hover,
.inline-support-action:focus-visible {
  background: #dff8e8;
  outline: 3px solid rgba(0, 122, 63, 0.2);
}
.energy-accounting-flow {
  display: grid;
  grid-template-columns: repeat(4, minmax(8.6rem, 12.4rem));
  justify-content: center;
  gap: 1.15rem;
  align-items: stretch;
}
.energy-accounting-flow-step {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 3rem;
  border: 2px solid var(--pip-navy);
  border-radius: 0.8rem;
  background: var(--pip-blue-soft);
  color: var(--pip-navy);
  text-align: center;
}
.energy-accounting-flow-step strong {
  font-size: clamp(0.95rem, 1.2vw, 1.1rem);
  line-height: 1.05;
}
.energy-accounting-flow-step span {
  position: absolute;
  right: -1.35rem;
  z-index: 2;
  width: 1.35rem;
  color: var(--pip-navy);
  font-size: 1.65rem;
  font-weight: 950;
}
.energy-accounting-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
}
.energy-accounting-card {
  display: grid;
  grid-template-rows: auto minmax(9rem, 1fr) auto auto;
  gap: 0.45rem;
  min-width: 0;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  padding: 0.55rem;
  color: var(--pip-navy);
}
.energy-accounting-card h2 {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(1.05rem, 1.5vw, 1.32rem);
  line-height: 1;
  text-align: center;
}
.energy-accounting-card p {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(0.86rem, 1.05vw, 0.98rem);
  font-weight: 850;
  line-height: 1.15;
  text-align: center;
}
.energy-accounting-card .inline-support-action {
  justify-self: center;
  width: min(100%, 11rem);
  padding: 0.45rem 0.75rem;
}
.energy-accounting-store-graphic {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.45rem;
  min-height: 9rem;
}
.energy-store-state {
  position: relative;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  overflow: hidden;
  border: 1.5px solid var(--pip-blue-line);
  border-radius: 0.7rem;
  background: #fff;
}
.energy-store-state img {
  width: 100%;
  height: 100%;
  min-height: 6.8rem;
  object-fit: cover;
}
.energy-store-state:first-child img {
  object-position: 38% 52%;
}
.energy-store-state:nth-child(2) img {
  object-position: 50% 58%;
}
.energy-store-state strong {
  display: block;
  padding: 0.25rem;
  background: #fff;
  color: var(--pip-navy);
  font-size: 0.82rem;
  font-weight: 950;
  text-align: center;
}
.energy-thermometer {
  position: absolute;
  right: 0.45rem;
  bottom: 1.55rem;
  width: 0.72rem;
  height: 2.75rem;
  border: 2px solid var(--pip-navy);
  border-radius: 999px;
  background: #fff;
}
.energy-thermometer::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -0.42rem;
  width: 1.08rem;
  height: 1.08rem;
  transform: translateX(-50%);
  border: 2px solid var(--pip-navy);
  border-radius: 50%;
  background: #fff;
}
.energy-thermometer i {
  position: absolute;
  left: 50%;
  bottom: 0.16rem;
  width: 0.28rem;
  transform: translateX(-50%);
  border-radius: 999px;
}
.energy-thermometer-cold i,
.energy-thermometer-cold::after {
  background: #207bd8;
}
.energy-thermometer-cold i {
  height: 40%;
}
.energy-thermometer-hot i,
.energy-thermometer-hot::after {
  background: #e52d20;
}
.energy-thermometer-hot i {
  height: 84%;
}
.energy-accounting-transfer-graphic,
.energy-accounting-conservation-graphic {
  position: relative;
  min-height: 9rem;
  overflow: hidden;
  border: 1.5px solid var(--pip-blue-line);
  border-radius: 0.7rem;
  background: #fff;
}
.energy-accounting-transfer-graphic img,
.energy-accounting-conservation-graphic img {
  width: 100%;
  height: 100%;
  min-height: 9rem;
  object-fit: cover;
}
.energy-accounting-transfer-graphic img {
  object-position: 48% 60%;
}
.energy-accounting-transfer-graphic span {
  position: absolute;
  left: 0.35rem;
  right: 0.35rem;
  bottom: 0.35rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--pip-navy);
  font-size: 0.72rem;
  font-weight: 950;
  line-height: 1.05;
  text-align: center;
  padding: 0.3rem 0.4rem;
}
.energy-accounting-conservation-graphic img {
  object-position: 55% 56%;
}
.energy-reservoir-label,
.energy-reservoir-check {
  position: absolute;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--pip-navy);
  font-size: 0.74rem;
  font-weight: 950;
  line-height: 1;
  padding: 0.3rem 0.45rem;
  box-shadow: 0 0.2rem 0.55rem rgba(0, 0, 0, 0.12);
}
.energy-reservoir-label-store {
  left: 0.45rem;
  top: 0.45rem;
}
.energy-reservoir-label-flow {
  right: 0.45rem;
  bottom: 0.45rem;
}
.energy-reservoir-check {
  right: 0.45rem;
  top: 0.45rem;
  background: var(--pip-green-soft);
  color: #006b38;
}
.energy-accounting-key-message {
  background: #fff;
  border-color: var(--pip-navy);
  border-top: 1px solid var(--pip-navy);
  color: var(--pip-navy);
}
.energy-accounting-key-message p {
  color: var(--pip-navy);
  font-size: clamp(0.98rem, 1.45vw, 1.2rem);
  font-weight: 900;
  line-height: 1.12;
}
.energy-accounting-key-message .energy-message-physics-icon {
  background: #fff;
  border-color: var(--pip-navy);
}
.active-energy-examples-page {
  gap: 0.6rem;
}
.active-energy-examples-page .active-journey-page-header h1 {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
}
.energy-account-example-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
}
.energy-account-example-card {
  display: grid;
  grid-template-rows: auto minmax(10rem, 1fr) auto auto auto;
  gap: 0.45rem;
  min-width: 0;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  padding: 0.6rem;
  color: var(--pip-navy);
}
.energy-account-example-card h2 {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(1.05rem, 1.55vw, 1.35rem);
  line-height: 1;
  text-align: center;
}
.energy-account-example-summary,
.energy-account-example-line {
  margin: 0;
  color: var(--pip-navy);
  text-align: center;
}
.energy-account-example-summary {
  font-size: clamp(0.92rem, 1.15vw, 1.02rem);
  font-weight: 950;
  line-height: 1.12;
}
.energy-account-example-line {
  font-size: clamp(0.8rem, 0.95vw, 0.92rem);
  font-weight: 800;
  line-height: 1.18;
}
.energy-account-example-card .inline-support-action {
  justify-self: center;
  width: min(100%, 11rem);
  padding: 0.45rem 0.75rem;
}
.energy-example-kettle-graphic,
.energy-example-photo-graphic {
  position: relative;
  min-height: 10rem;
  overflow: hidden;
  border: 1.5px solid var(--pip-blue-line);
  border-radius: 0.7rem;
  background: #fff;
}
.energy-example-kettle-graphic img,
.energy-example-photo-graphic img {
  width: 100%;
  height: 100%;
  min-height: 10rem;
  object-fit: cover;
}
.energy-example-kettle-graphic img {
  object-position: 48% 55%;
}
.energy-example-roller-graphic img {
  object-position: 28% 45%;
}
.energy-example-reservoir-graphic img {
  object-position: 55% 56%;
}
.energy-example-thermometer-group {
  position: absolute;
  bottom: 0.45rem;
  display: grid;
  justify-items: center;
  gap: 0.15rem;
  color: var(--pip-navy);
}
.energy-example-thermometer-group .energy-thermometer {
  position: relative;
  right: auto;
  bottom: auto;
}
.energy-example-thermometer-group strong {
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  padding: 0.15rem 0.35rem;
  font-size: 0.75rem;
  font-weight: 950;
  line-height: 1;
}
.energy-example-thermometer-low {
  left: 0.55rem;
}
.energy-example-thermometer-high {
  right: 0.55rem;
}
.energy-example-popup {
  width: min(48rem, 94vw);
}
.energy-example-popup-body {
  gap: 0.75rem;
}
.energy-account-table {
  width: 100%;
  border-collapse: collapse;
  color: var(--pip-navy);
  font-size: 0.98rem;
}
.energy-account-table th,
.energy-account-table td {
  border: 1.5px solid var(--pip-blue-line);
  padding: 0.45rem 0.55rem;
  text-align: left;
  vertical-align: top;
}
.energy-account-table thead th {
  background: var(--pip-blue-soft);
  font-weight: 950;
}
.energy-account-table tbody th {
  width: 38%;
  font-weight: 950;
}
.energy-account-table td {
  font-weight: 850;
}
.energy-account-check,
.energy-account-link,
.energy-account-key-idea {
  border: 1.5px solid var(--pip-blue-line);
  border-radius: 0.8rem;
  background: #fff;
  padding: 0.65rem;
}
.energy-account-check h3,
.energy-account-link h3,
.energy-account-key-idea h3 {
  margin: 0 0 0.35rem;
  color: var(--pip-navy);
  font-size: 1rem;
}
.energy-account-check p,
.energy-account-link p,
.energy-account-key-idea p {
  margin: 0.2rem 0 0;
}
.energy-account-check {
  border-color: var(--pip-green);
  background: var(--pip-green-soft);
}
.energy-account-key-idea {
  border-color: var(--pip-navy);
  background: var(--pip-blue-soft);
  font-weight: 900;
}
.active-energy-measurement-page {
  gap: 0.55rem;
  border: 1px solid var(--pip-navy);
  background: #fff;
  padding: 0.65rem;
}
.active-energy-measurement-page .active-journey-page-header {
  border: 0;
  padding: 0.35rem 1rem 0.25rem;
}
.active-energy-measurement-page .active-journey-page-header h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
}
.energy-measurement-opening {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  padding: 0.7rem 0.8rem;
}
.energy-measurement-opening p {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  font-weight: 950;
  line-height: 1.1;
  text-align: center;
}
.energy-measurement-opening .inline-support-action {
  flex: 0 0 auto;
  padding: 0.45rem 0.8rem;
}
.energy-measurement-body {
  display: grid;
  gap: 0.65rem;
  border: 0;
  background: #fff;
}
.energy-measurement-main {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(14rem, 24%);
  gap: 0.7rem;
  align-items: stretch;
}
.energy-measurement-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
}
.energy-measurement-card {
  display: grid;
  grid-template-rows: auto minmax(8rem, 1fr) auto auto;
  gap: 0.42rem;
  min-width: 0;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  padding: 0.58rem;
  color: var(--pip-navy);
}
.energy-measurement-card h2 {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(0.98rem, 1.35vw, 1.18rem);
  line-height: 1.02;
  text-align: center;
}
.energy-measurement-image {
  overflow: hidden;
  border: 1.5px solid var(--pip-blue-line);
  border-radius: 0.7rem;
  background: #fff;
}
.energy-measurement-image img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 8rem;
  object-fit: cover;
}
.energy-measurement-store,
.energy-measurement-value {
  margin: 0;
  color: var(--pip-navy);
  text-align: center;
}
.energy-measurement-store {
  font-size: clamp(0.8rem, 0.95vw, 0.92rem);
  font-weight: 900;
  line-height: 1.12;
}
.energy-measurement-value {
  border-radius: 0.7rem;
  background: var(--pip-blue-soft);
  padding: 0.34rem 0.45rem;
  font-size: clamp(0.9rem, 1.15vw, 1.08rem);
  font-weight: 950;
  line-height: 1;
}
.energy-measurement-key-idea {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: 0.75rem;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  padding: 0.85rem;
  color: var(--pip-navy);
  text-align: center;
}
.energy-measurement-key-idea .energy-message-physics-icon,
.energy-measurement-unit-message .energy-message-physics-icon {
  background: #fff;
  border-color: var(--pip-navy);
}
.energy-measurement-key-idea p {
  margin: 0;
  font-size: clamp(0.92rem, 1.1vw, 1.02rem);
  font-weight: 900;
  line-height: 1.18;
}
.energy-measurement-unit-message {
  min-height: 4.1rem;
  border: 1px solid var(--pip-navy);
}
.energy-measurement-unit-message p {
  color: var(--pip-navy);
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  font-weight: 950;
  line-height: 1.05;
}
.energy-measurement-popup {
  width: min(48rem, 94vw);
}
.active-energy-misconception-page {
  gap: 0.55rem;
  border: 1px solid var(--pip-navy);
  background: #fff;
  padding: 0.65rem;
}
.active-energy-misconception-page .active-journey-page-header {
  border: 0;
  padding: 0.35rem 1rem 0.25rem;
}
.active-energy-misconception-page .active-journey-page-header h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
}
.energy-misconception-intro {
  display: grid;
  gap: 0.25rem;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  padding: 0.65rem 0.85rem;
  color: var(--pip-navy);
  text-align: center;
}
.energy-misconception-intro p {
  margin: 0;
  font-size: clamp(1rem, 1.45vw, 1.28rem);
  font-weight: 900;
  line-height: 1.15;
  white-space: pre-line;
}
.energy-misconception-panel-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr) minmax(13rem, 0.85fr);
  gap: 0.7rem;
  align-items: stretch;
}
.energy-misconception-panel {
  display: grid;
  align-content: start;
  gap: 0.55rem;
  min-width: 0;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  padding: 0.65rem;
  color: var(--pip-navy);
  text-align: center;
}
.energy-misconception-panel h2 {
  margin: -0.65rem -0.65rem 0;
  border-bottom: 1.5px solid currentColor;
  border-radius: 0.75rem 0.75rem 0 0;
  padding: 0.55rem 0.75rem;
  font-size: clamp(1.05rem, 1.45vw, 1.28rem);
  font-weight: 950;
  line-height: 1;
}
.energy-misconception-panel img {
  display: block;
  width: 100%;
  max-height: 8.6rem;
  object-fit: contain;
}
.energy-misconception-panel p {
  margin: 0;
  font-size: clamp(0.86rem, 1.05vw, 0.98rem);
  font-weight: 850;
  line-height: 1.18;
}
.energy-misconception-panel .inline-support-action {
  justify-self: center;
  margin-top: 0.05rem;
  padding: 0.42rem 0.75rem;
}
.energy-misconception-panel-wrong {
  border-color: #ef6464;
  background: #fff8f8;
}
.energy-misconception-panel-wrong h2 {
  background: #fff1f1;
  color: #bd1515;
}
.energy-misconception-quote {
  font-size: clamp(0.98rem, 1.25vw, 1.1rem) !important;
  font-weight: 950 !important;
}
.energy-misconception-panel-physics {
  border-color: #6daf63;
  background: #f9fff7;
}
.energy-misconception-panel-physics h2 {
  background: #effbea;
  color: #145e21;
}
.energy-misconception-panel-key {
  align-content: start;
  border-color: var(--pip-blue-line);
  background: #fff;
}
.energy-misconception-panel-key h2 {
  color: var(--pip-navy);
  background: var(--pip-blue-soft);
}
.energy-misconception-panel-key p {
  white-space: pre-line;
}
.energy-transfer-visual-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(6.8rem, 35%);
  align-items: center;
  gap: 0.45rem;
}
.energy-transfer-visual-row img {
  max-height: 7.6rem;
}
.energy-transfer-visual-row ul {
  display: grid;
  gap: 0.36rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.energy-transfer-visual-row li {
  border: 1.5px solid var(--pip-blue-line);
  border-radius: 999px;
  background: #fff;
  padding: 0.28rem 0.45rem;
  color: var(--pip-navy);
  font-size: clamp(0.72rem, 0.9vw, 0.82rem);
  font-weight: 950;
  line-height: 1.05;
}
.energy-misconception-core {
  font-size: clamp(1.08rem, 1.45vw, 1.3rem) !important;
  font-weight: 950 !important;
}
.energy-misconception-panel-key p {
  font-size: clamp(1rem, 1.25vw, 1.12rem);
  line-height: 1.2;
}
.energy-misconception-footer-message {
  min-height: 4.1rem;
  border: 1px solid var(--pip-navy);
}
.energy-misconception-footer-message .energy-message-physics-icon {
  background: #fff;
  border-color: var(--pip-navy);
}
.energy-misconception-footer-message p {
  color: var(--pip-navy);
  font-size: clamp(1rem, 1.55vw, 1.28rem);
  font-weight: 950;
  line-height: 1.12;
}
.active-energy-summary-page {
  gap: 0.55rem;
  border: 1px solid var(--pip-navy);
  background: #fff;
  padding: 0.65rem;
}
.active-energy-summary-page .active-journey-page-header {
  border: 0;
  padding: 0.35rem 1rem 0.25rem;
}
.active-energy-summary-page .active-journey-page-header h1 {
  font-size: clamp(1.85rem, 3.3vw, 2.8rem);
  text-wrap: balance;
}
.energy-summary-intro {
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  padding: 0.58rem 0.85rem;
  text-align: center;
}
.energy-summary-intro p {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  font-weight: 950;
  line-height: 1.1;
}
.energy-summary-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}
.energy-summary-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(10rem, 42%) minmax(0, 1fr);
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  min-height: 9.6rem;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  padding: 0.65rem;
  color: var(--pip-navy);
}
.energy-summary-number {
  position: absolute;
  top: 0.45rem;
  right: 0.45rem;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 999px;
  background: var(--pip-navy);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 950;
  line-height: 1;
  box-shadow: 0 0.15rem 0.35rem rgba(7, 27, 84, 0.16);
}
.energy-summary-card p {
  margin: 0;
  color: var(--pip-navy);
  font-size: clamp(0.98rem, 1.35vw, 1.22rem);
  font-weight: 950;
  line-height: 1.13;
}
.energy-summary-kettle-graphic,
.energy-summary-photo-graphic,
.energy-summary-reservoir-graphic,
.energy-summary-transfer-graphic {
  position: relative;
  min-height: 8rem;
  overflow: hidden;
  border: 1.5px solid var(--pip-blue-line);
  border-radius: 0.75rem;
  background: #fff;
}
.energy-summary-kettle-graphic img,
.energy-summary-photo-graphic img,
.energy-summary-reservoir-graphic img,
.energy-summary-transfer-graphic img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 8rem;
  object-fit: cover;
}
.energy-summary-kettle-graphic img {
  object-position: 48% 55%;
}
.energy-summary-photo-graphic img {
  object-fit: cover;
}
.energy-summary-reservoir-graphic img {
  object-position: 55% 56%;
}
.energy-summary-transfer-graphic {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(5.4rem, 35%);
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem;
}
.energy-summary-transfer-graphic img {
  min-height: 7.4rem;
  object-fit: contain;
}
.energy-summary-transfer-graphic ul {
  display: grid;
  gap: 0.3rem;
  margin: 0;
  padding: 0;
  list-style: none;
}
.energy-summary-transfer-graphic li {
  border: 1.5px solid var(--pip-blue-line);
  border-radius: 999px;
  background: #fff;
  padding: 0.22rem 0.32rem;
  color: var(--pip-navy);
  font-size: clamp(0.64rem, 0.82vw, 0.76rem);
  font-weight: 950;
  line-height: 1.02;
  text-align: center;
}
.energy-summary-photo-graphic p {
  position: absolute;
  left: 0.45rem;
  right: 0.45rem;
  bottom: 0.38rem;
  border-radius: 999px;
  background: rgba(235, 243, 255, 0.94);
  padding: 0.24rem 0.35rem;
  text-align: center;
  font-size: clamp(0.76rem, 0.95vw, 0.88rem);
}
.energy-summary-reservoir-graphic .energy-reservoir-label {
  font-size: clamp(0.64rem, 0.78vw, 0.72rem);
}
.image-stage-hotspots {
  position: relative;
}
.practice-choice-hotspot-layer {
  position: absolute;
  inset: 0.65rem;
  border-radius: 1rem;
  pointer-events: none;
}
.practice-choice-hotspot {
  position: absolute;
  border: 2px solid transparent;
  border-radius: 0.75rem;
  background: transparent;
  cursor: pointer;
  pointer-events: auto;
}
.practice-choice-hotspot:hover,
.practice-choice-hotspot:focus-visible {
  border-color: transparent;
  background: transparent;
  outline: none;
}
.side-controls {
  position: sticky;
  top: 5.25rem;
  border: 1px solid var(--pip-blue-line);
  background: rgba(255, 255, 255, 0.92);
  border-radius: 1.35rem;
  padding: 1rem;
  box-shadow: 0 10px 25px rgba(11, 40, 120, 0.08);
}
.side-controls h2 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}
.side-button-stack {
  display: grid;
  gap: 0.65rem;
}
.side-button-stack button {
  width: 100%;
}
.learning-card {
  border: 1px solid var(--pip-blue-line);
  background: #fff;
  border-radius: 1.4rem;
  padding: clamp(1rem, 2vw, 1.4rem);
  box-shadow: var(--pip-shadow);
}
.card-label {
  display: inline-flex;
  width: fit-content;
  border-radius: 999px;
  background: var(--pip-blue-soft);
  color: var(--pip-navy);
  font-size: 0.82rem;
  font-weight: 800;
  padding: 0.38rem 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}
.lead-text {
  color: var(--pip-muted);
  font-size: 1.12rem;
}
.question-box,
.support-box-readable,
.final-answer,
.unit-key-link {
  border: 2px solid var(--pip-navy);
  border-radius: 1.1rem;
  padding: 1rem;
  margin-top: 1rem;
  background: #fff;
}
.question-box h2,
.support-box-readable h2 {
  margin-bottom: 0.55rem;
}
.question-box p {
  font-size: clamp(1.18rem, 2vw, 1.6rem);
  margin: 0.25rem 0;
}
.support-box-readable {
  background: var(--pip-blue-soft);
}
.support-box-readable p,
.support-box-readable dd,
.support-box-readable dt {
  font-size: 1.08rem;
}
.equation-support dl {
  display: grid;
  gap: 0.45rem;
  margin: 0;
}
.equation-support div {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 0.75rem;
  align-items: baseline;
}
.equation-support dt {
  font-weight: 800;
  color: var(--pip-navy);
}
.equation-support dd {
  margin: 0;
}
.option-list {
  margin: 0.75rem 0 0;
  font-size: 1.1rem;
  line-height: 1.55;
}
.three-column-answer {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}
.info-box {
  min-height: 260px;
  border: 2px solid var(--pip-navy);
  border-radius: 1.1rem;
  padding: 1rem;
  background: #fff;
}
.info-box.green-box {
  border-color: var(--pip-green);
  background: var(--pip-green-soft);
}
.info-box h2 {
  margin-bottom: 0.6rem;
}
.info-box ul,
.info-box ol {
  margin: 0;
  padding-left: 1.35rem;
}
.info-box li {
  font-size: 1rem;
  line-height: 1.45;
  margin-bottom: 0.45rem;
}
.info-box ol li::marker {
  font-weight: 800;
  color: var(--pip-navy);
}
.final-answer {
  font-size: clamp(1.25rem, 2vw, 1.7rem);
  font-weight: 850;
  color: var(--pip-navy);
}
.unit-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}
.unit-mini-card {
  border: 2px solid var(--pip-navy);
  border-radius: 1.1rem;
  padding: 1rem;
  background: var(--pip-blue-soft);
  min-height: 170px;
}
.unit-mini-card:nth-child(2) {
  border-color: var(--pip-orange);
  background: var(--pip-orange-soft);
}
.unit-mini-card:nth-child(3) {
  border-color: var(--pip-green);
  background: var(--pip-green-soft);
}
.unit-mini-card p {
  font-size: 1.08rem;
}
.unit-key-link {
  display: grid;
  gap: 0.45rem;
}
.unit-key-link strong {
  font-size: clamp(1.6rem, 3vw, 2.35rem);
  color: var(--pip-navy);
}
.unit-key-link span {
  font-size: 1.15rem;
}
.keyword-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}
.keyword-card {
  background: #fff;
  border: 1px solid var(--pip-blue-line);
  border-radius: 1.25rem;
  padding: 1rem;
  box-shadow: 0 8px 18px rgba(11, 40, 120, 0.06);
}
.keyword-card h3 {
  margin-bottom: 0.75rem;
  text-transform: capitalize;
}
.keyword-card p {
  margin: 0.55rem 0;
  color: var(--pip-text);
}
.small-link {
  margin-top: 0.5rem;
}
.question-route-tile:nth-child(1) {
  border-left: 6px solid var(--pip-navy);
}
.question-route-tile:nth-child(2) {
  border-left: 6px solid #5267b6;
}
.question-route-tile:nth-child(3) {
  border-left: 6px solid var(--pip-orange);
}
.question-route-tile:nth-child(4) {
  border-left: 6px solid var(--pip-green);
}
.question-route-tile:nth-child(5) {
  border-left: 6px solid #6b2fa8;
}
.practice-mcq-card {
  border: 1px solid var(--pip-blue-line);
  border-radius: 1.35rem;
  background: #fff;
  padding: clamp(1rem, 2vw, 1.35rem);
  box-shadow: var(--pip-shadow);
}
.practice-mcq-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 0.75rem;
}
.practice-mcq-header h1 {
  font-size: clamp(1.55rem, 2.25vw, 2.25rem);
  line-height: 1.08;
}
.practice-tab,
.time-badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border-radius: 999px;
  font-weight: 850;
  line-height: 1;
}
.practice-tab {
  background: var(--pip-navy);
  color: #fff;
  padding: 0.55rem 0.8rem;
  margin-bottom: 0.65rem;
}
.time-badge {
  flex: 0 0 auto;
  border: 1px solid var(--pip-blue-line);
  background: var(--pip-blue-soft);
  color: var(--pip-navy);
  padding: 0.62rem 0.78rem;
}
.practice-header-actions,
.describe-question-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: flex-start;
  gap: 0.55rem;
}
.narration-control {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.3rem;
}
.narration-button {
  border: 1px solid var(--pip-orange);
  border-radius: 999px;
  background: #fff;
  color: var(--pip-orange);
  cursor: pointer;
  font-weight: 850;
  line-height: 1;
  padding: 0.62rem 0.78rem;
}
.narration-button:hover,
.narration-button:focus-visible,
.narration-button[aria-pressed=true] {
  background: var(--pip-orange);
  color: #fff;
  outline: none;
}
.narration-status {
  color: var(--pip-red);
  font-size: 0.78rem;
  font-weight: 750;
  max-width: 13rem;
  text-align: right;
}
.practice-mcq-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(250px, 0.75fr);
  gap: 1rem;
  align-items: stretch;
}
.practice-mcq-question {
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 2px solid var(--pip-navy);
  border-radius: 1.1rem;
  background: var(--pip-blue-soft);
  padding: clamp(0.9rem, 1.6vw, 1.1rem);
}
.practice-mcq-question h2 {
  font-size: clamp(1.25rem, 1.85vw, 1.65rem);
  line-height: 1.16;
}
.support-line {
  color: var(--pip-navy);
  font-weight: 850;
  margin: 0 0 0.5rem;
}
.learning-focus {
  color: var(--pip-muted);
  font-weight: 700;
  margin: 0.8rem 0 0;
}
.hint-button {
  width: fit-content;
  border: 1px solid var(--pip-navy);
  border-radius: 999px;
  background: #fff;
  color: var(--pip-navy);
  cursor: pointer;
  font-weight: 850;
  margin-top: 1rem;
  padding: 0.6rem 0.8rem;
}
.hint-button:hover,
.hint-button:focus-visible {
  background: var(--pip-navy);
  color: #fff;
  outline: none;
}
.hint-panel {
  border-left: 4px solid var(--pip-orange);
  background: #fff;
  border-radius: 0.75rem;
  color: var(--pip-text);
  font-size: 0.88rem;
  font-weight: 400;
  line-height: 1.38;
  margin: 0.6rem 0 0;
  padding: 0.65rem 0.75rem;
}
.practice-mcq-learning-card {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
  border: 2px solid var(--pip-green);
  border-radius: 1.1rem;
  background: var(--pip-green-soft);
  padding: 0.75rem;
}
.practice-mcq-learning-card .hint-button {
  margin-top: 0;
  margin-left: 0;
  padding: 0.5rem 0.72rem;
}
.practice-mcq-learning-card .hint-panel {
  color: var(--pip-text);
  font-size: 0.88rem;
  font-weight: 400;
  line-height: 1.38;
  margin: 0.55rem 0 0;
  padding: 0.62rem 0.72rem;
}
.practice-reference-visual {
  margin: 0;
  border: 1px solid var(--pip-blue-line);
  border-radius: 1.1rem;
  overflow: hidden;
  background: #fff;
}
.practice-reference-visual img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 230px;
  object-fit: cover;
  object-position: center;
}
.practice-reference-visual figcaption {
  padding: 0.55rem 0.7rem;
  color: var(--pip-muted);
  font-size: 0.86rem;
  font-weight: 750;
}
.mcq-choice-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}
.mcq-choice {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.8rem;
  align-items: center;
  min-height: 104px;
  border: 2px solid var(--pip-blue-line);
  border-radius: 1rem;
  background: #fff;
  color: var(--pip-text);
  cursor: pointer;
  padding: 0.85rem;
  text-align: left;
  font-size: 1.03rem;
  font-weight: 750;
  line-height: 1.35;
}
.mcq-choice:hover,
.mcq-choice:focus-visible {
  border-color: var(--pip-navy);
  outline: none;
  box-shadow: 0 8px 18px rgba(11, 40, 120, 0.12);
}
.mcq-choice.selected {
  border-color: var(--pip-navy);
  background: #f8fbff;
}
.mcq-choice.correct {
  border-color: var(--pip-green);
  background: var(--pip-green-soft);
}
.mcq-choice.needs-review {
  border-color: var(--pip-orange);
  background: var(--pip-orange-soft);
}
.choice-label {
  display: inline-grid;
  place-items: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 999px;
  background: var(--pip-navy);
  color: #fff;
  font-weight: 900;
}
.mcq-choice.correct .choice-label {
  background: var(--pip-green);
}
.mcq-choice.needs-review .choice-label {
  background: var(--pip-orange);
}
.mcq-feedback {
  display: grid;
  align-content: center;
  gap: 0.35rem;
  min-height: 132px;
  border: 2px solid var(--pip-blue-line);
  border-radius: 1rem;
  background: #f8f9fc;
  padding: 0.9rem 1rem;
  margin-top: 1rem;
  color: var(--pip-muted);
}
.mcq-feedback strong {
  color: var(--pip-navy-dark);
  font-size: 1.08rem;
}
.feedback-learning-point {
  display: block;
  font-weight: 850;
  margin-top: 0.25rem;
}
.mcq-feedback.visible.correct {
  border-color: var(--pip-green);
  background: var(--pip-green-soft);
  color: var(--pip-text);
}
.mcq-feedback.visible.needs-review {
  border-color: var(--pip-orange);
  background: var(--pip-orange-soft);
  color: var(--pip-text);
}
.mcq-bottom-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.8rem;
  align-items: center;
  border: 1px solid var(--pip-blue-line);
  border-radius: 1rem;
  background: #fff;
  margin-top: 0.75rem;
  padding: 0.65rem 0.8rem;
}
.mcq-bottom-panel:not(.answered) {
  grid-template-columns: 1fr;
}
.self-check-panel {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 0.65rem;
  align-items: center;
  min-width: 0;
}
.self-check-panel strong {
  color: var(--pip-navy-dark);
  white-space: nowrap;
}
.self-check-options {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  justify-content: center;
}
.self-check-options button {
  border: 1px solid var(--pip-blue-line);
  border-radius: 999px;
  background: var(--pip-blue-soft);
  color: var(--pip-navy);
  cursor: pointer;
  font-weight: 850;
  padding: 0.48rem 0.75rem;
}
.self-check-options button.selected {
  border-color: var(--pip-green);
  background: var(--pip-green);
  color: #fff;
  outline: none;
}
.self-check-options button:hover,
.self-check-options button:focus-visible {
  border-color: var(--pip-navy);
  background: var(--pip-navy);
  color: #fff;
  outline: none;
}
.self-check-saved {
  color: var(--pip-green);
  font-weight: 850;
  white-space: nowrap;
}
.mcq-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  justify-content: flex-end;
  margin-top: 0;
}
.mcq-action-row button {
  white-space: nowrap;
}
.mcq-action-row button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
  transform: none;
  box-shadow: none;
}
.describe-order-builder {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.9fr);
  gap: 1rem;
  margin-top: 1rem;
}
.describe-order-pool,
.describe-order-sequence {
  border: 1px solid var(--pip-blue-line);
  border-radius: 1rem;
  background: #fff;
  padding: 0.85rem;
}
.describe-order-pool h2,
.describe-order-sequence h2 {
  color: var(--pip-navy-dark);
  font-size: 1rem;
  margin: 0 0 0.7rem;
}
.describe-order-sequence-copy {
  margin-bottom: 0.7rem;
}
.describe-order-sequence-copy h2 {
  margin-bottom: 0.25rem;
}
.describe-order-sequence-copy p {
  color: var(--pip-muted);
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1.32;
  margin: 0;
}
.describe-order-check-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 0.7rem;
}
.describe-order-check-row .primary-action:disabled {
  cursor: not-allowed;
  opacity: 0.48;
  transform: none;
  box-shadow: none;
}
.describe-step-grid {
  display: grid;
  gap: 0.65rem;
}
.describe-step-card {
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: var(--pip-blue-soft);
  color: var(--pip-text);
  cursor: pointer;
  font-size: 0.98rem;
  font-weight: 780;
  line-height: 1.28;
  min-height: 68px;
  padding: 0.72rem 0.78rem;
  text-align: left;
}
.describe-step-card:hover,
.describe-step-card:focus-visible {
  border-color: var(--pip-navy);
  background: #fff;
  outline: none;
  box-shadow: 0 8px 18px rgba(11, 40, 120, 0.12);
}
.describe-step-card.used {
  background: #f2f4f9;
  color: var(--pip-muted);
  cursor: not-allowed;
  opacity: 0.62;
}
.describe-step-card.waiting-turn,
.explain-link-word-card.waiting-turn {
  background: #f7f9fd;
  color: var(--pip-muted);
  cursor: not-allowed;
  opacity: 0.58;
  box-shadow: none;
}
.describe-order-sequence {
  background: #f8fbff;
}
.describe-empty-sequence {
  display: grid;
  min-height: 96px;
  place-items: center;
  border: 2px dashed var(--pip-blue-line);
  border-radius: 0.9rem;
  color: var(--pip-muted);
  font-weight: 750;
  margin: 0;
  text-align: center;
}
.describe-order-sequence ol {
  display: grid;
  gap: 0.55rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.describe-sequence-item {
  display: grid;
  grid-template-columns: 2rem minmax(0, 1fr);
  gap: 0.65rem;
  align-items: center;
  width: 100%;
  border: 2px solid var(--pip-navy);
  border-radius: 0.9rem;
  background: #fff;
  color: var(--pip-text);
  font-size: 0.96rem;
  font-weight: 780;
  line-height: 1.28;
  min-height: 58px;
  padding: 0.55rem 0.65rem;
  text-align: left;
}
.describe-order-sequence li span {
  display: inline-grid;
  place-items: center;
  width: 1.85rem;
  height: 1.85rem;
  border-radius: 999px;
  background: var(--pip-navy);
  color: #fff;
  font-weight: 900;
}
.describe-model-sequence {
  display: grid;
  gap: 0.25rem;
  border-top: 1px solid rgba(33, 134, 79, 0.28);
  margin: 0.45rem 0 0;
  padding-top: 0.45rem;
}
.describe-model-button {
  justify-self: start;
  margin-top: 0.25rem;
  width: fit-content;
}
.describe-order-bottom .primary-action:disabled {
  cursor: not-allowed;
  opacity: 0.48;
  transform: none;
  box-shadow: none;
}
.explain-source-panel {
  display: grid;
  gap: 0.85rem;
}
.explain-source-section h2 {
  margin-bottom: 0.55rem;
}
.explain-link-section {
  border-top: 1px solid var(--pip-blue-line);
  padding-top: 0.75rem;
}
.explain-link-word-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.55rem;
}
.explain-link-word-card {
  border: 1px solid var(--pip-blue-line);
  border-radius: 0.75rem;
  background: #fff;
  color: var(--pip-navy-dark);
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 850;
  line-height: 1.15;
  min-height: 42px;
  padding: 0.5rem 0.55rem;
  text-align: center;
}
.explain-link-word-card:hover,
.explain-link-word-card:focus-visible {
  border-color: var(--pip-navy);
  background: var(--pip-blue-soft);
  outline: none;
}
.explain-link-word-card.used {
  background: #f2f4f9;
  color: var(--pip-muted);
  cursor: not-allowed;
  opacity: 0.62;
}
.explain-built-list {
  display: grid;
  gap: 0.42rem;
}
.explain-built-list .describe-sequence-item {
  min-height: 48px;
}
.explain-built-list .explain-link-token {
  border-color: var(--pip-blue-line);
  background: #fff;
  color: var(--pip-navy-dark);
  font-size: 0.9rem;
  min-height: 40px;
}
.explain-built-list .explain-link-token span {
  background: var(--pip-blue-line);
  color: var(--pip-navy-dark);
}
.explain-model-answer {
  line-height: 1.36;
}
.explain-placeholder-card .practice-mcq-question {
  margin-top: 1rem;
}
.describe-compare-header h1 {
  max-width: 840px;
}
.describe-question-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.55rem;
  justify-content: flex-end;
}
.marks-badge {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  width: fit-content;
  border: 1px solid var(--pip-blue-line);
  border-radius: 999px;
  background: var(--pip-green-soft);
  color: var(--pip-green);
  font-weight: 850;
  line-height: 1;
  padding: 0.62rem 0.78rem;
}
.describe-compare-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.9fr);
  gap: 1rem;
  margin-top: 1rem;
}
.describe-compare-frame {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-height: 290px;
  border: 2px solid var(--pip-blue-line);
  border-radius: 1rem;
  background: #fff;
  padding: clamp(0.9rem, 1.6vw, 1.1rem);
}
.describe-compare-frame h2 {
  color: var(--pip-navy-dark);
  font-size: 1.15rem;
  margin: 0 0 0.75rem;
}
.describe-compare-frame p {
  color: var(--pip-text);
  font-size: 1rem;
  font-weight: 650;
  line-height: 1.42;
  margin: 0 0 0.8rem;
}
.explain-link-word-prompt {
  border-left: 4px solid var(--pip-green);
  background: #fff;
  border-radius: 0.5rem;
  color: var(--pip-navy-dark);
  font-size: 0.94rem;
  font-weight: 800;
  padding: 0.5rem 0.65rem;
}
.explain-link-highlight {
  display: inline-block;
  border: 1px solid rgba(13, 50, 150, 0.24);
  border-radius: 999px;
  background: var(--pip-blue-soft);
  color: var(--pip-navy-dark);
  font-weight: 900;
  line-height: 1;
  margin: 0 0.08rem;
  padding: 0.18rem 0.42rem;
}
.describe-compare-frame .primary-action {
  margin-top: auto;
}
.describe-compare-support {
  background: var(--pip-green-soft);
  border-color: var(--pip-green);
}
.describe-scaffold-list {
  display: grid;
  gap: 0.7rem;
  margin: 0;
  padding-left: 1.35rem;
}
.describe-scaffold-list li {
  color: var(--pip-text);
  font-weight: 750;
  line-height: 1.34;
}
.describe-mark-summary {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  align-self: flex-start;
  border: 2px solid var(--pip-green);
  border-radius: 0.75rem;
  background: #f7fff9;
  color: var(--pip-navy);
  font-weight: 850;
  padding: 0.45rem 0.7rem;
}
.describe-mark-summary span {
  font-size: 1.05rem;
}
.describe-checklist {
  display: grid;
  gap: 0.6rem;
  width: 100%;
}
.describe-checklist button {
  display: grid;
  grid-template-columns: 1.8rem minmax(0, 1fr);
  gap: 0.6rem;
  align-items: center;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.85rem;
  background: #fff;
  color: var(--pip-text);
  cursor: pointer;
  font-size: 0.94rem;
  font-weight: 750;
  line-height: 1.28;
  min-height: 52px;
  padding: 0.55rem 0.65rem;
  text-align: left;
}
.describe-checklist button:hover,
.describe-checklist button:focus-visible {
  border-color: var(--pip-navy);
  outline: none;
}
.describe-checklist button.checked {
  border-color: var(--pip-green);
  background: #f7fff9;
}
.describe-checklist button span {
  display: inline-grid;
  place-items: center;
  width: 1.45rem;
  height: 1.45rem;
  border: 2px solid var(--pip-green);
  border-radius: 0.35rem;
  color: var(--pip-green);
  font-weight: 900;
}
.explain-link-word-support {
  display: grid;
  gap: 0.55rem;
  margin-top: 0.75rem;
  width: 100%;
}
.explain-link-word-support .secondary-action {
  justify-self: start;
  width: auto;
}
.explain-link-word-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}
.explain-link-word-list span {
  border: 1px solid var(--pip-blue-line);
  border-radius: 999px;
  background: #fff;
  color: var(--pip-navy-dark);
  font-size: 0.9rem;
  font-weight: 850;
  line-height: 1;
  padding: 0.42rem 0.62rem;
}
.describe-help-choices {
  display: flex;
  flex-wrap: wrap;
  grid-column: 1 / -1;
  gap: 0.55rem;
  justify-content: flex-start;
}
.describe-help-choices .secondary-action {
  width: auto;
}
.calculate-question-frame p {
  color: var(--pip-text);
  font-size: 1rem;
  font-weight: 650;
  line-height: 1.42;
  margin: 0.7rem 0 0;
}
.calculate-equation-panel {
  align-content: start;
}
.calculate-equation-panel h2 {
  color: var(--pip-navy-dark);
  font-size: 1.05rem;
  margin: 0 0 0.55rem;
}
.calculate-equation-panel p {
  border-left: 4px solid var(--pip-green);
  background: #fff;
  border-radius: 0.45rem;
  color: var(--pip-navy-dark);
  font-size: 1rem;
  font-weight: 850;
  line-height: 1.25;
  margin: 0.45rem 0 0;
  padding: 0.48rem 0.62rem;
}
.calculate-support-resource-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.55rem;
}
.calculate-support-resource-controls .secondary-action {
  width: auto;
}
.calculate-support-resource-panel {
  display: grid;
  gap: 0.35rem;
  border: 1px solid var(--pip-blue-line);
  border-radius: 0.7rem;
  background: #fff;
  margin-top: 0.5rem;
  padding: 0.55rem 0.65rem;
}
.calculate-support-resource-panel h3 {
  color: var(--pip-navy-dark);
  font-size: 0.96rem;
  margin: 0;
}
.calculate-support-resource-panel p {
  border-left: 0;
  background: transparent;
  border-radius: 0;
  color: var(--pip-text);
  font-size: 0.92rem;
  font-weight: 750;
  line-height: 1.28;
  margin: 0;
  padding: 0;
}
.equation-triangle-support {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
  border-top: 1px solid var(--pip-blue-line);
  margin-top: 0.25rem;
  padding-top: 0.45rem;
}
.equation-triangle-shape {
  position: relative;
  display: grid;
  width: 92px;
  height: 78px;
  flex: 0 0 auto;
  place-items: center;
}
.equation-triangle-shape::before {
  content: "";
  position: absolute;
  inset: 3px 8px 6px;
  clip-path: polygon(50% 0, 100% 100%, 0 100%);
  border: 2px solid var(--pip-navy);
  background: var(--pip-blue-soft);
}
.equation-triangle-shape span {
  position: absolute;
  z-index: 1;
  color: var(--pip-navy-dark);
  font-weight: 900;
}
.triangle-top {
  top: 12px;
}
.triangle-bottom-left {
  bottom: 12px;
  left: 24px;
}
.triangle-bottom-right {
  bottom: 12px;
  right: 24px;
}
.calculate-entry-frame {
  display: grid;
  gap: 0.6rem;
  border: 1px solid var(--pip-blue-line);
  border-radius: 1rem;
  background: #f8fbff;
  margin-top: 1rem;
  padding: 0.68rem;
}
.calculate-entry-copy {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.8rem;
  align-items: baseline;
}
.calculate-entry-copy h2 {
  color: var(--pip-navy-dark);
  font-size: 1.08rem;
  margin: 0;
}
.calculate-entry-copy p {
  color: var(--pip-muted);
  font-size: 0.94rem;
  font-weight: 750;
  line-height: 1.35;
  margin: 0;
}
.calculate-equation-choice-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.55rem;
}
.calculate-equation-choice-row button {
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.75rem;
  background: #fff;
  color: var(--pip-navy-dark);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 900;
  min-height: 44px;
  padding: 0.55rem 0.65rem;
}
.calculate-equation-choice-row button:hover,
.calculate-equation-choice-row button:focus-visible {
  border-color: var(--pip-navy);
  background: var(--pip-blue-soft);
  outline: none;
}
.calculate-equation-choice-row button.selected {
  border-color: var(--pip-navy);
  background: var(--pip-navy);
  color: #fff;
}
.calculate-equation-choice-row.has-error button {
  border-color: var(--pip-orange);
  background: var(--pip-orange-soft);
}
.calculate-work-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
}
.calculate-work-grid.two-column {
  grid-template-columns: minmax(0, 1.35fr) minmax(250px, 0.65fr);
  align-items: start;
}
.calculate-work-grid.comparison {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.calculate-line-card {
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  padding: 0.52rem 0.65rem;
}
.calculate-line-card h3 {
  color: var(--pip-navy-dark);
  font-size: 0.88rem;
  margin: 0 0 0.35rem;
}
.calculate-comparison-card {
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  padding: 0.58rem 0.65rem;
}
.calculate-comparison-card h3 {
  color: var(--pip-navy-dark);
  font-size: 0.95rem;
  margin: 0 0 0.45rem;
}
.calculate-comparison-choice-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
}
.calculate-comparison-choice-row button {
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.75rem;
  background: #fff;
  color: var(--pip-navy-dark);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 900;
  min-height: 44px;
  padding: 0.55rem 0.65rem;
}
.calculate-comparison-choice-row button:hover,
.calculate-comparison-choice-row button:focus-visible {
  border-color: var(--pip-navy);
  background: var(--pip-blue-soft);
  outline: none;
}
.calculate-comparison-choice-row button.selected {
  border-color: var(--pip-navy);
  background: var(--pip-navy);
  color: #fff;
}
.calculate-comparison-card.has-error,
.calculate-comparison-card.has-error button {
  border-color: var(--pip-orange);
  background: var(--pip-orange-soft);
}
.calculate-equation-line {
  display: flex;
  flex-wrap: nowrap;
  gap: 0.55rem;
  align-items: start;
  color: var(--pip-navy-dark);
  font-size: 1.1rem;
  font-weight: 900;
  min-width: 0;
}
.calculate-equation-line.standard-form-line {
  align-items: end;
  gap: 0.42rem;
}
.standard-form-line .calculate-equation-token {
  margin-top: 0;
}
.standard-form-line .standard-form-base {
  align-items: flex-end;
  height: 40px;
  padding-bottom: 0.2rem;
}
.standard-form-line .calculate-field-standardExponent {
  align-self: flex-start;
  flex-basis: 64px;
  transform: translateY(-0.35rem);
}
.standard-form-line .calculate-field-standardExponent .calculate-input-wrap {
  min-height: 34px;
}
.standard-form-line .calculate-field-standardExponent input {
  font-size: 0.95rem;
  padding: 0.34rem 0.42rem;
  text-align: center;
}
.calculate-line-field {
  display: inline-flex;
  gap: 0.55rem;
  align-items: start;
  min-width: 0;
}
.calculate-equation-token {
  display: inline-flex;
  align-items: center;
  height: 40px;
  margin-top: 1.24rem;
  white-space: nowrap;
}
.calculate-field {
  flex: 0 1 132px;
  display: grid;
  gap: 0.28rem;
  min-width: 0;
}
.calculate-field-power {
  flex-basis: 136px;
}
.calculate-field-time {
  flex-basis: 112px;
}
.calculate-field-energy {
  flex-basis: 154px;
}
.calculate-field-answerValue {
  flex-basis: 190px;
}
.calculate-field-answerUnit {
  flex-basis: 88px;
}
.calculate-field-result {
  flex-basis: 156px;
}
.calculate-field-standardMantissa {
  flex-basis: 104px;
}
.calculate-field-standardExponent {
  flex-basis: 66px;
}
.calculate-field > span:first-child {
  color: var(--pip-muted);
  font-size: 0.82rem;
  font-weight: 850;
  line-height: 1.1;
}
.calculate-input-wrap {
  display: flex;
  align-items: center;
  min-height: 40px;
  border: 2px solid var(--pip-blue-line);
  border-radius: 0.72rem;
  background: #fff;
  overflow: hidden;
}
.calculate-input-wrap input {
  width: 100%;
  min-width: 0;
  border: 0;
  color: var(--pip-text);
  font-size: 1.05rem;
  font-weight: 850;
  outline: none;
  padding: 0.48rem 0.58rem;
}
.calculate-input-wrap strong {
  border-left: 1px solid var(--pip-blue-line);
  background: var(--pip-blue-soft);
  color: var(--pip-navy-dark);
  font-size: 0.95rem;
  min-height: 40px;
  padding: 0.58rem 0.65rem;
}
.calculate-result-wrap {
  color: var(--pip-muted);
  font-size: 0.92rem;
  font-weight: 850;
  padding: 0;
}
.calculate-result-wrap.has-result {
  background: var(--pip-blue-soft);
  color: var(--pip-navy-dark);
  font-size: 1.05rem;
}
.calculate-result-wrap > span {
  flex: 1;
  min-width: 0;
  padding: 0.48rem 0.58rem;
}
.calculate-field.has-error .calculate-input-wrap {
  border-color: var(--pip-orange);
  background: var(--pip-orange-soft);
}
.calculate-field.has-error input {
  background: var(--pip-orange-soft);
}
.calculate-support-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: flex-end;
}
.calculate-support-panels {
  display: grid;
  gap: 0.45rem;
}
.calculate-support-panels p {
  border-left: 4px solid var(--pip-green);
  border-radius: 0.55rem;
  background: #fff;
  color: var(--pip-navy-dark);
  font-weight: 800;
  line-height: 1.34;
  margin: 0;
  padding: 0.55rem 0.7rem;
}
.calculate-feedback:not(.visible) {
  color: var(--pip-muted);
}
.calculate-feedback {
  min-height: 104px;
}
@media (max-width: 980px) {
  .viewer-layout {
    grid-template-columns: 1fr;
  }
  .side-controls {
    position: static;
  }
  .kettle-entry-hero {
    grid-template-columns: 1fr;
  }
  .kettle-entry-hero img {
    max-height: 320px;
  }
  .three-column-answer,
  .unit-card-grid {
    grid-template-columns: 1fr;
  }
  .info-box {
    min-height: auto;
  }
  .practice-mcq-grid {
    grid-template-columns: 1fr;
  }
  .describe-order-builder {
    grid-template-columns: 1fr;
  }
  .describe-compare-grid {
    grid-template-columns: 1fr;
  }
  .calculate-work-grid {
    grid-template-columns: 1fr;
  }
  .calculate-work-grid.two-column {
    grid-template-columns: 1fr;
  }
  .calculate-work-grid.comparison {
    grid-template-columns: 1fr;
  }
  .explain-link-word-row {
    grid-template-columns: 1fr;
  }
  .practice-reference-visual img {
    max-height: 360px;
  }
}
@media (max-width: 760px) {
  .top-nav,
  .hero-card {
    align-items: stretch;
    flex-direction: column;
  }
  .top-links {
    justify-content: flex-start;
  }
  .kettle-entry-frame {
    padding: 0.85rem;
  }
  .kettle-entry-stage-row {
    grid-template-columns: 1fr;
  }
  .kettle-entry-stage-arrow {
    display: none;
  }
  .kettle-entry-hero-copy h1 {
    font-size: clamp(2rem, 10vw, 3rem);
  }
  .kettle-entry-title-line {
    white-space: normal;
  }
  .kettle-entry-hero img {
    min-height: 200px;
  }
  .primary-action,
  .secondary-action,
  .support-action,
  .hero-actions button,
  .journey-start-row button,
  .utility-row button {
    width: 100%;
  }
  .equation-support div {
    grid-template-columns: 1fr;
    gap: 0.1rem;
  }
  .practice-mcq-header {
    flex-direction: column;
  }
  .describe-question-meta {
    justify-content: flex-start;
  }
  .mcq-choice-list {
    grid-template-columns: 1fr;
  }
  .mcq-choice {
    min-height: 88px;
  }
  .mcq-bottom-panel {
    grid-template-columns: 1fr;
  }
  .self-check-panel {
    grid-template-columns: 1fr;
  }
  .self-check-panel strong,
  .self-check-saved {
    text-align: center;
  }
  .mcq-action-row button {
    width: 100%;
  }
  .calculate-equation-choice-row {
    grid-template-columns: 1fr;
  }
  .calculate-equation-line {
    flex-wrap: wrap;
  }
  .calculate-field,
  .calculate-field-energy,
  .calculate-field-power,
  .calculate-field-time,
  .calculate-field-answerValue,
  .calculate-field-answerUnit,
  .calculate-field-result,
  .calculate-field-standardMantissa,
  .calculate-field-standardExponent {
    flex: 1 1 140px;
  }
  .calculate-equation-token {
    margin-top: 1.24rem;
  }
}
.answer-template h1 {
  margin-bottom: 0.85rem;
}
.answer-sections {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}
.single-column-answer {
  grid-template-columns: 1fr;
}
.written-answer-grid {
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.95fr) minmax(0, 0.9fr);
  align-items: stretch;
}
.answer-section {
  border: 2px solid var(--pip-navy);
  border-radius: 1.1rem;
  padding: 1rem;
  background: #fff;
  min-height: 160px;
}
.answer-section h2 {
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  margin-bottom: 0.65rem;
}
.answer-section p,
.answer-section li {
  font-size: clamp(1.03rem, 1.45vw, 1.18rem);
  line-height: 1.48;
}
.answer-section ul {
  margin: 0;
  padding-left: 1.3rem;
}
.answer-section li {
  margin-bottom: 0.45rem;
}
.answer-section-blue {
  background: var(--pip-blue-soft);
}
.answer-section-green {
  border-color: var(--pip-green);
  background: var(--pip-green-soft);
}
.answer-section-navy {
  background: #fff;
}
.answer-statement {
  font-weight: 700;
  color: var(--pip-text);
}
.calculation-grid .info-box h2,
.answer-section h2 {
  color: var(--pip-navy-dark);
}
.final-answer span {
  display: inline-block;
  margin-right: 0.4rem;
}
@media (max-width: 980px) {
  .written-answer-grid {
    grid-template-columns: 1fr;
  }
  .answer-section {
    min-height: auto;
  }
}
.scenario-tile img {
  height: 150px;
  object-fit: contain;
  object-position: center;
  padding: 0.25rem;
  background: #fff;
}
.scenario-tile {
  display: flex;
  flex-direction: column;
}
.scenario-tile h3 {
  min-height: 2rem;
}
.concept-support-card h1 {
  margin-bottom: 0.45rem;
}
.concept-summary {
  border: 2px solid var(--pip-navy);
  border-radius: 1.1rem;
  padding: 1rem;
  margin: 1rem 0;
  background: var(--pip-blue-soft);
  color: var(--pip-navy);
  font-weight: 750;
  font-size: 1.12rem;
  line-height: 1.45;
}
.concept-section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}
.concept-section {
  border: 1px solid var(--pip-blue-line);
  border-radius: 1.1rem;
  background: #fff;
  padding: 1rem;
}
.concept-section h2 {
  color: var(--pip-navy);
  font-size: 1.22rem;
  margin-bottom: 0.45rem;
}
.concept-section p {
  line-height: 1.5;
  margin: 0;
}
.concept-key-terms {
  margin-top: 1.25rem;
}
.visual-page-wrap {
  width: 100%;
  margin: 0;
  padding: 0;
}
.approved-visual-shell {
  position: relative;
  width: 100%;
  margin: 0 auto;
  background: #f7f9fd;
  overflow: hidden;
}
.approved-full-image {
  display: block;
  width: 100%;
  height: auto;
  user-select: none;
}
.carousel-shell {
  min-height: calc(100vh - 76px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem 1rem;
  background: #f7f9fd;
}
.carousel-image-frame {
  position: relative;
  width: min(100%, calc((100vh - 168px) * (1672 / 941)));
  max-width: 1672px;
  aspect-ratio: 1672 / 941;
  margin: 0 auto;
  border: 1px solid rgba(7, 26, 74, 0.14);
  border-radius: 1.05rem;
  background: #ffffff;
  box-shadow: 0 12px 28px rgba(7, 26, 74, 0.12);
  overflow: hidden;
}
.carousel-slide-image {
  width: 100%;
  height: 100%;
  object-fit: fill;
}
.image-hotspot {
  position: absolute;
  display: block;
  border: 0;
  background: rgba(255, 255, 255, 0);
  cursor: pointer;
  border-radius: 0.75rem;
}
.image-hotspot:focus-visible {
  outline: 3px solid #1b6bff;
  outline-offset: 3px;
  background: rgba(27, 107, 255, 0.08);
}
.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.9rem;
  width: min(100%, 760px);
}
.carousel-control-button {
  border: 1px solid rgba(91, 43, 191, 0.45);
  border-radius: 999px;
  background: #ffffff;
  color: #071a4a;
  cursor: pointer;
  font-weight: 800;
  font-size: clamp(0.88rem, 1.05vw, 1rem);
  line-height: 1;
  padding: 0.82rem 1.2rem;
  min-width: 145px;
  box-shadow: 0 8px 20px rgba(7, 26, 74, 0.08);
}
.carousel-control-button.primary {
  background: #5b2bbf;
  border-color: #5b2bbf;
  color: #ffffff;
}
.carousel-control-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  box-shadow: none;
}
.carousel-control-button:not(:disabled):hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(7, 26, 74, 0.14);
}
.carousel-control-status {
  color: #071a4a;
  font-weight: 800;
  min-width: 92px;
  text-align: center;
}
.home-explore-hotspot {
  left: 4.2%;
  top: 35.1%;
  width: 15.0%;
  height: 5.0%;
}
.home-how-hotspot {
  left: 21.0%;
  top: 35.1%;
  width: 12.2%;
  height: 5.0%;
}
.home-around-zone-hotspot {
  left: 2.0%;
  top: 59.2%;
  width: 18.3%;
  height: 15.0%;
}
@media (max-width: 900px) {
  .approved-visual-shell:not(.carousel-shell) {
    overflow-x: auto;
  }
  .approved-visual-shell:not(.carousel-shell) .approved-full-image {
    min-width: 900px;
  }
  .carousel-shell {
    padding: 0.5rem;
  }
  .carousel-image-frame {
    width: min(100%, calc((100vh - 158px) * (1672 / 941)));
    min-width: 0;
  }
  .carousel-controls {
    gap: 0.45rem;
  }
  .carousel-control-button {
    min-width: 0;
    padding: 0.72rem 0.82rem;
  }
}
.approved-home-nav {
  height: 76px;
  display: grid;
  grid-template-columns: 280px 1fr 290px 52px;
  align-items: center;
  gap: 1.5rem;
  padding: 0 28px;
  background: #031b3d;
  color: #fff;
}
.approved-home-brand {
  border: 0;
  background: transparent;
  color: #fff;
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 900;
  font-size: 1.25rem;
  line-height: 0.9;
  text-align: left;
  cursor: pointer;
}
.approved-atom-logo {
  position: relative;
  display: inline-block;
  width: 46px;
  height: 46px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 999px;
  background-color: #061b49;
  background-image: url("data:image/svg+xml,%3Csvg width='64' height='64' viewBox='0 0 64 64' xmlns='http://www.w3.org/2000/svg'%3E%3Cellipse cx='32' cy='32' rx='24' ry='9' fill='none' stroke='%23ffffff' stroke-width='3'/%3E%3Cellipse cx='32' cy='32' rx='24' ry='9' fill='none' stroke='%23ffffff' stroke-width='3' transform='rotate(60 32 32)'/%3E%3Cellipse cx='32' cy='32' rx='24' ry='9' fill='none' stroke='%23ffffff' stroke-width='3' transform='rotate(-60 32 32)'/%3E%3Ccircle cx='32' cy='32' r='4.8' fill='%23ffffff'/%3E%3C/svg%3E");
  background-position: center;
  background-repeat: no-repeat;
  background-size: 40px 40px;
  box-shadow: inset 0 0 0 2px rgba(139, 208, 255, 0.18);
}
.approved-home-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(1.2rem, 3vw, 3rem);
  height: 100%;
}
.approved-home-links button {
  position: relative;
  border: 0;
  background: transparent;
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  cursor: pointer;
  padding: 0.4rem 0;
}
.approved-home-links button.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -15px;
  height: 3px;
  border-radius: 999px;
  background: #1d9bff;
}
.approved-home-search {
  height: 43px;
  border-radius: 0.75rem;
  background: rgba(255, 255, 255, 0.09);
  color: rgba(255, 255, 255, 0.72);
  display: flex;
  align-items: center;
  padding-left: 1.2rem;
  font-size: 0.88rem;
}
.approved-profile-button {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 2px solid rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.25);
  color: rgba(255, 255, 255, 0.9);
  cursor: pointer;
}
.homepage-shell .approved-full-image {
  display: block;
}
.homepage-shell .home-explore-hotspot {
  left: 4.2%;
  top: 30.0%;
  width: 15.0%;
  height: 5.4%;
}
.homepage-shell .home-how-hotspot {
  left: 21.0%;
  top: 30.0%;
  width: 12.2%;
  height: 5.4%;
}
.homepage-shell .home-around-zone-hotspot {
  left: 2.0%;
  top: 56.0%;
  width: 18.3%;
  height: 16.2%;
}
@media (max-width: 1050px) {
  .approved-home-nav {
    grid-template-columns: 220px 1fr 46px;
    gap: 0.75rem;
    padding: 0 18px;
  }
  .approved-home-search {
    display: none;
  }
  .approved-home-links {
    gap: 1rem;
    justify-content: flex-end;
  }
  .approved-home-links button {
    font-size: 0.9rem;
  }
}
.live-homepage-shell {
  width: min(1320px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(1rem, 2.5vw, 2rem) 0 2.5rem;
}
.live-hero-card {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: clamp(1rem, 2.5vw, 1.75rem);
  align-items: stretch;
  border: 1px solid var(--pip-blue-line);
  border-radius: 2rem;
  background:
    linear-gradient(
      135deg,
      #ffffff 0%,
      #edf3ff 62%,
      #f7f5ff 100%);
  box-shadow: var(--pip-shadow);
  padding: clamp(1.3rem, 3vw, 2.2rem);
}
.live-hero-copy p {
  color: var(--pip-muted);
  font-size: clamp(1.05rem, 1.55vw, 1.25rem);
  max-width: 780px;
}
.hero-outcome {
  border-left: 5px solid var(--pip-purple);
  background: #ffffff;
  border-radius: 0 1rem 1rem 0;
  padding: 0.85rem 1rem;
  color: var(--pip-navy-dark) !important;
  font-weight: 800;
}
.live-hero-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.65rem 0.85rem;
  align-content: center;
  border-radius: 1.5rem;
  padding: 1.2rem;
  background: #071b53;
  color: #ffffff;
  min-height: 260px;
}
.live-hero-panel span {
  display: block;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  padding: 0.7rem 0.85rem;
  font-weight: 850;
}
.live-hero-panel strong {
  align-self: center;
  color: #bda7ff;
  font-size: 1.25rem;
}
.homepage-feature-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.9rem;
  margin: 1.2rem 0 1.8rem;
}
.homepage-feature-strip article {
  border: 1px solid var(--pip-blue-line);
  border-radius: 1.2rem;
  background: #ffffff;
  padding: 1rem;
  box-shadow: 0 8px 18px rgba(11, 40, 120, 0.05);
}
.homepage-feature-strip strong,
.homepage-feature-strip span {
  display: block;
}
.homepage-feature-strip strong {
  color: var(--pip-navy-dark);
  font-size: 1.03rem;
  margin-bottom: 0.45rem;
}
.homepage-feature-strip span {
  color: var(--pip-muted);
  line-height: 1.42;
  font-size: 0.94rem;
}
.experience-selection-section {
  scroll-margin-top: 90px;
}
.live-section-header {
  display: block;
}
.experience-grid {
  grid-template-columns: repeat(auto-fit, minmax(255px, 1fr));
}
.situation-grid {
  grid-template-columns: repeat(auto-fit, minmax(285px, 1fr));
}
.first-release-situation-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  align-items: stretch;
}
.experience-tile,
.situation-tile {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-height: 100%;
}
.experience-tile img,
.situation-tile img {
  height: 180px;
  object-fit: cover;
  object-position: center;
}
.experience-tile h3,
.situation-tile h3 {
  min-height: auto;
}
.situation-hook {
  color: var(--pip-navy-dark) !important;
  font-weight: 800;
  margin-top: 0.15rem !important;
}
.first-release-situation-tile {
  gap: 0.55rem;
  align-items: stretch;
  text-align: left;
}
.first-release-situation-tile img {
  height: 245px;
}
.first-release-situation-tile h3 {
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  line-height: 1.05;
}
.first-release-situation-tile .situation-hook {
  font-size: clamp(1rem, 1.2vw, 1.12rem);
  line-height: 1.18;
}
.situation-physics-ideas {
  display: grid;
  gap: 0.24rem;
  margin-top: auto;
  color: var(--pip-navy);
}
.situation-physics-ideas strong {
  font-size: 0.92rem;
  font-weight: 950;
  line-height: 1.1;
}
.situation-physics-ideas span {
  font-size: 0.9rem;
  font-weight: 750;
  line-height: 1.18;
}
.status-active {
  background: var(--pip-green-soft);
  color: var(--pip-green);
}
.learner-nav-button {
  background: var(--pip-purple) !important;
  border-color: var(--pip-purple) !important;
  color: #ffffff !important;
}
.coming-soon-wrapper {
  position: relative;
  display: inline-flex;
}
.coming-soon-wrapper > button {
  white-space: nowrap;
}
.coming-soon-tooltip {
  position: absolute;
  z-index: 60;
  left: 50%;
  top: calc(100% + 0.55rem);
  width: min(280px, 80vw);
  transform: translateX(-50%) translateY(-4px);
  border: 1px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #ffffff;
  color: var(--pip-text);
  box-shadow: 0 14px 32px rgba(7, 26, 74, 0.18);
  padding: 0.8rem;
  text-align: left;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.16s ease, transform 0.16s ease;
}
.coming-soon-wrapper:hover .coming-soon-tooltip,
.coming-soon-wrapper:focus-within .coming-soon-tooltip {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.coming-soon-tooltip strong,
.coming-soon-tooltip span {
  display: block;
}
.coming-soon-tooltip strong {
  color: var(--pip-navy-dark);
  margin-bottom: 0.35rem;
}
.coming-soon-tooltip span {
  color: var(--pip-muted);
  font-size: 0.9rem;
  line-height: 1.38;
}
.dark-tooltip .coming-soon-tooltip {
  top: calc(100% + 1rem);
}
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 1rem;
  background: rgba(7, 26, 74, 0.45);
  backdrop-filter: blur(6px);
}
.modal-card {
  position: relative;
  width: min(560px, 100%);
  border: 1px solid var(--pip-blue-line);
  border-radius: 1.45rem;
  background: #ffffff;
  box-shadow: 0 24px 54px rgba(7, 26, 74, 0.28);
  padding: clamp(1.1rem, 3vw, 1.6rem);
}
.modal-card p {
  color: var(--pip-muted);
}
.modal-close {
  position: absolute;
  right: 1rem;
  top: 0.85rem;
  border: 0;
  border-radius: 999px;
  width: 2rem;
  height: 2rem;
  background: var(--pip-blue-soft);
  color: var(--pip-navy);
  cursor: pointer;
  font-size: 1.25rem;
  font-weight: 900;
}
.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1rem;
}
.learner-input-label {
  display: block;
  color: var(--pip-navy-dark);
  font-weight: 850;
  margin-top: 1rem;
  margin-bottom: 0.35rem;
}
.learner-input {
  width: 100%;
  border: 1px solid var(--pip-blue-line);
  border-radius: 0.85rem;
  font: inherit;
  font-size: 1.05rem;
  padding: 0.85rem 1rem;
}
.current-learner-note {
  background: var(--pip-blue-soft);
  border-radius: 0.85rem;
  padding: 0.75rem 0.9rem;
  color: var(--pip-navy-dark) !important;
}
.form-error {
  color: var(--pip-red) !important;
  font-weight: 800;
  margin: 0.6rem 0 0;
}
.parent-info-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.parent-info-card {
  min-height: 210px;
}
.approved-home-search {
  border: 0;
  text-align: left;
  cursor: pointer;
}
.approved-profile-button {
  font-weight: 900;
}
@media (max-width: 1120px) {
  .homepage-feature-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .parent-info-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 900px) {
  .live-hero-card {
    grid-template-columns: 1fr;
  }
  .live-hero-panel {
    min-height: auto;
  }
  .homepage-feature-strip {
    grid-template-columns: 1fr;
  }
  .first-release-situation-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 760px) {
  .approved-home-nav {
    height: auto;
    grid-template-columns: 1fr;
    align-items: stretch;
    padding: 0.9rem 1rem;
  }
  .approved-home-links {
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 0.75rem;
  }
  .approved-home-links button,
  .approved-home-links .coming-soon-wrapper > button,
  .approved-home-search,
  .approved-profile-button {
    width: 100%;
  }
  .approved-profile-button {
    border-radius: 0.9rem;
  }
  .first-release-situation-grid {
    grid-template-columns: 1fr;
  }
  .modal-actions .primary-action,
  .modal-actions .secondary-action {
    width: 100%;
  }
}
.approved-home-nav {
  grid-template-columns: 270px minmax(0, 1fr) 290px auto;
  position: sticky;
  top: 0;
  z-index: 50;
}
.approved-home-links {
  gap: clamp(1rem, 2.4vw, 2.5rem);
}
.approved-profile-control {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-width: 108px;
  height: 46px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: #ffffff;
  cursor: pointer;
  font-weight: 850;
  font-size: 1rem;
}
.approved-profile-control:hover,
.approved-profile-control:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}
.approved-profile-control .profile-icon {
  position: relative;
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 2px solid rgba(255, 255, 255, 0.9);
  border-radius: 999px;
  color: #ffffff;
}
.approved-profile-control .profile-icon::before {
  content: "";
  position: absolute;
  top: 9px;
  left: 50%;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #ffffff;
  transform: translateX(-50%);
}
.approved-profile-control .profile-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 7px;
  width: 18px;
  height: 8px;
  border: 2px solid #ffffff;
  border-top: 0;
  border-radius: 0 0 10px 10px;
  transform: translateX(-50%);
}
.homepage-v0211a-shell {
  width: 100%;
  background: #ffffff;
}
.homepage-v0211a-hero {
  display: grid;
  grid-template-columns: minmax(440px, 0.82fr) minmax(560px, 1.18fr);
  min-height: 448px;
  align-items: stretch;
  background:
    linear-gradient(
      90deg,
      #ffffff 0%,
      #f8fbff 46%,
      #eef4fa 100%);
  overflow: hidden;
}
.homepage-v0211a-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(2.4rem, 5vw, 4.4rem) clamp(2.2rem, 5vw, 4.4rem);
  position: relative;
  z-index: 1;
}
.homepage-v0211a-copy h1 {
  color: #071a4a;
  font-size: clamp(2.6rem, 4.4vw, 4.15rem);
  line-height: 1.1;
  letter-spacing: -0.055em;
  margin: 0 0 1.45rem;
}
.homepage-purple {
  color: var(--pip-purple);
}
.homepage-v0211a-copy p {
  color: #071a4a;
  font-size: clamp(1.18rem, 1.55vw, 1.55rem);
  line-height: 1.42;
  margin: 0;
  max-width: 640px;
}
.homepage-v0211a-visual {
  position: relative;
  min-height: 448px;
  overflow: hidden;
}
.homepage-v0211a-visual::before {
  display: none;
}
.homepage-v0211a-visual img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  object-position: center right;
}
.homepage-v0211a-features {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid rgba(7, 26, 74, 0.09);
  border-bottom: 1px solid rgba(7, 26, 74, 0.09);
  background: #ffffff;
  padding: 1.25rem clamp(1.8rem, 4vw, 4rem);
}
.homepage-v0211a-features article {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 0.95rem;
  min-height: 76px;
  padding: 0 1.25rem;
  border-right: 1px solid rgba(7, 26, 74, 0.14);
}
.homepage-v0211a-features article:last-child {
  border-right: 0;
}
.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 999px;
  border: 2px solid #0c5bd8;
  color: #0c5bd8;
  font-weight: 850;
  font-size: 1.18rem;
  background: #ffffff;
}
.feature-icon.units {
  background: #0c5bd8;
  color: #ffffff;
}
.feature-icon.equations {
  background: #6b2fa8;
  color: #ffffff;
  border-color: #6b2fa8;
}
.feature-icon.practice {
  background: #21864f;
  color: #ffffff;
  border-color: #21864f;
}
.feature-icon.progress {
  background: #e2a600;
  color: #ffffff;
  border-color: #e2a600;
}
.homepage-v0211a-features strong,
.homepage-v0211a-features span {
  display: block;
}
.homepage-v0211a-features strong {
  color: #071a4a;
  font-size: 1rem;
  font-weight: 850;
  margin-bottom: 0.28rem;
}
.homepage-v0211a-features span {
  color: #071a4a;
  font-size: 0.94rem;
  line-height: 1.32;
}
.homepage-v0211a-action-panel {
  width: min(1440px, calc(100% - 4rem));
  margin: 2rem auto 2.5rem;
  border: 1px solid rgba(35, 79, 160, 0.24);
  border-radius: 1.35rem;
  background:
    linear-gradient(
      135deg,
      #ffffff 0%,
      #fbfdff 100%);
  box-shadow: 0 12px 26px rgba(11, 40, 120, 0.06);
  display: grid;
  grid-template-columns: minmax(280px, 1fr) minmax(360px, 0.95fr);
  align-items: center;
  gap: clamp(1rem, 3vw, 2rem);
  padding: clamp(1.25rem, 2.6vw, 2.2rem) clamp(1.4rem, 3.6vw, 3.3rem);
}
.continue-copy h2 {
  font-size: clamp(1.45rem, 2.2vw, 2rem);
  letter-spacing: -0.03em;
  margin-bottom: 0.45rem;
}
.continue-copy p {
  margin: 0;
  color: #071a4a;
  font-size: clamp(1.02rem, 1.35vw, 1.16rem);
}
.continue-actions {
  display: grid;
  gap: 0.75rem;
  justify-items: stretch;
}
.continue-buttons {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(180px, 0.72fr);
  gap: 1rem;
}
.continue-buttons .primary-action,
.continue-buttons .secondary-action {
  border-radius: 0.75rem;
  min-height: 58px;
  font-size: 1.08rem;
}
.resume-action {
  background: #ffffff;
  border: 2px solid #0c5bd8;
  color: #0b2878;
}
.resume-path-box {
  border: 1px solid rgba(12, 91, 216, 0.22);
  border-radius: 0.9rem;
  background: #f6f9ff;
  padding: 0.75rem 0.95rem;
  color: #071a4a;
}
.resume-path-box span,
.resume-path-box strong {
  display: block;
}
.resume-path-box span {
  font-size: 0.82rem;
  color: #5d6678;
  font-weight: 750;
  margin-bottom: 0.22rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.resume-path-box strong {
  color: #0c5bd8;
  font-size: 1rem;
  line-height: 1.35;
}
@media (max-width: 1180px) {
  .approved-home-nav {
    grid-template-columns: 220px 1fr auto;
    gap: 0.75rem;
  }
  .approved-home-search {
    display: none;
  }
  .approved-home-links {
    gap: 1rem;
    justify-content: flex-end;
  }
  .homepage-v0211a-hero {
    grid-template-columns: 1fr;
  }
  .homepage-v0211a-visual {
    min-height: 320px;
  }
  .homepage-v0211a-features {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .homepage-v0211a-features article {
    border-right: 0;
    border-bottom: 1px solid rgba(7, 26, 74, 0.1);
  }
  .homepage-v0211a-features article:last-child {
    border-bottom: 0;
  }
}
@media (max-width: 760px) {
  .homepage-v0211a-hero {
    min-height: auto;
  }
  .homepage-v0211a-copy {
    padding: 2rem 1.25rem;
  }
  .homepage-v0211a-features {
    grid-template-columns: 1fr;
    padding: 1rem;
  }
  .homepage-v0211a-action-panel {
    width: min(100% - 1.5rem, 100%);
    grid-template-columns: 1fr;
  }
  .continue-buttons {
    grid-template-columns: 1fr;
  }
  .approved-home-nav {
    grid-template-columns: 1fr;
    height: auto;
    padding: 0.9rem 1rem;
    overflow-x: clip;
  }
  .approved-home-brand,
  .approved-home-links,
  .approved-profile-control {
    min-width: 0;
    width: 100%;
  }
  .approved-home-links {
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 0.65rem;
  }
  .approved-profile-control {
    justify-content: flex-start;
    border-radius: 0.9rem;
  }
  .coming-soon-tooltip {
    left: 0;
    right: auto;
    max-width: calc(100vw - 2rem);
  }
}
.homepage-v0211a-features .feature-icon {
  display: inline-grid;
  place-items: center;
  line-height: 1;
  overflow: hidden;
  flex: 0 0 48px;
}
.concept-frame-card,
.practice-choice-card,
.practice-step-card {
  min-height: 640px;
}
.concept-header-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.2rem;
  align-items: center;
  padding: 1.1rem;
  border: 1px solid var(--pip-blue-line);
  border-radius: 1.2rem;
  background:
    linear-gradient(
      135deg,
      #f5f9ff 0%,
      #ffffff 100%);
  margin-bottom: 1rem;
}
.concept-big-icon {
  display: grid;
  place-items: center;
  width: 5rem;
  height: 5rem;
  border-radius: 1.2rem;
  background: var(--pip-blue-soft);
  color: var(--pip-navy);
  font-size: 2.3rem;
  font-weight: 850;
}
.concept-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 0.9rem;
  margin: 1rem 0;
}
.concept-card-grid.count-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
.concept-mini-card {
  border: 2px solid var(--pip-blue-line);
  border-radius: 1.1rem;
  background: #fff;
  padding: 1rem;
  min-height: 210px;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.concept-mini-card h2 {
  font-size: 1.1rem;
}
.concept-mini-card p {
  margin: 0;
  color: var(--pip-text);
}
.concept-mini-card strong {
  margin-top: auto;
  color: var(--pip-navy-dark);
  font-size: 1.05rem;
}
.concept-card-icon {
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: var(--pip-blue-soft);
  font-weight: 850;
  color: var(--pip-navy);
}
.accent-green {
  border-color: rgba(33, 134, 79, 0.55);
}
.accent-orange {
  border-color: rgba(189, 102, 17, 0.55);
}
.accent-purple {
  border-color: rgba(107, 75, 184, 0.55);
}
.accent-red {
  border-color: rgba(185, 54, 48, 0.55);
}
.accent-blue {
  border-color: rgba(11, 40, 120, 0.45);
}
.concept-key-idea,
.practice-how-box,
.practice-feedback,
.model-answer-box,
.mark-point-box {
  border: 1px solid #f0c971;
  background: #fffaf0;
  border-radius: 1rem;
  padding: 1rem;
  margin-top: 1rem;
}
.concept-key-idea {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.8rem;
  align-items: center;
}
.concept-key-idea p {
  margin: 0;
  font-size: 1.08rem;
  color: var(--pip-navy-dark);
}
.practice-area-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(185px, 1fr));
  gap: 0.9rem;
  margin-top: 1rem;
}
.practice-area-tile {
  text-align: left;
  border: 2px solid var(--pip-blue-line);
  border-radius: 1.2rem;
  background: #fff;
  min-height: 220px;
  padding: 1rem;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}
.practice-area-tile:hover {
  transform: translateY(-2px);
  box-shadow: var(--pip-shadow);
}
.practice-area-tile h2 {
  font-size: 1.2rem;
}
.practice-area-tile p {
  margin: 0;
  color: var(--pip-muted);
}
.practice-area-icon {
  width: 4rem;
  height: 4rem;
  display: grid;
  place-items: center;
  border-radius: 1rem;
  background: var(--pip-blue-soft);
  color: var(--pip-navy);
  font-size: 1.55rem;
  font-weight: 850;
}
.practice-open {
  margin-top: auto;
  font-weight: 850;
  color: var(--pip-navy);
}
.practice-visual {
  border: 1px solid var(--pip-blue-line);
  border-radius: 1.1rem;
  background:
    linear-gradient(
      135deg,
      #f6f9ff,
      #ffffff);
  padding: 1rem;
  margin: 1rem 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  align-items: center;
}
.practice-visual-kettle {
  display: grid;
  place-items: center;
  width: 5.5rem;
  height: 5.5rem;
  border-radius: 1.2rem;
  background: #ffffff;
  border: 1px solid var(--pip-blue-line);
  font-size: 2.5rem;
}
.practice-visual p {
  margin: 0;
  color: var(--pip-navy-dark);
  font-weight: 780;
}
.practice-option-list {
  display: grid;
  gap: 0.7rem;
  margin-top: 0.8rem;
}
.practice-option-list button {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  gap: 0.75rem;
  align-items: center;
  text-align: left;
  padding: 0.8rem;
  border: 1px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  background: #fff;
  cursor: pointer;
}
.practice-option-list button strong {
  display: grid;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 999px;
  background: var(--pip-blue-soft);
  color: var(--pip-navy);
}
.practice-option-list button.correct {
  border-color: var(--pip-green);
  background: var(--pip-green-soft);
}
.practice-option-list button.incorrect {
  border-color: var(--pip-red);
  background: #fff1f0;
}
.practice-feedback.secure {
  border-color: rgba(33, 134, 79, 0.5);
  background: var(--pip-green-soft);
}
.practice-feedback.review {
  border-color: rgba(185, 54, 48, 0.45);
  background: #fff4f2;
}
.practice-feedback strong {
  display: block;
  margin-bottom: 0.4rem;
}
.practice-instruction {
  font-weight: 750;
  color: var(--pip-navy);
}
.model-answer-box {
  border-color: var(--pip-blue-line);
  background: #f8fbff;
}
.mark-point-box {
  border-color: rgba(33, 134, 79, 0.35);
  background: var(--pip-green-soft);
}
.self-check-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}
.self-check-row button {
  border: 1px solid var(--pip-blue-line);
  border-radius: 999px;
  background: #fff;
  padding: 0.65rem 0.9rem;
  color: var(--pip-navy);
  font-weight: 800;
  cursor: pointer;
}
.self-check-row button.active {
  background: var(--pip-navy);
  color: #fff;
  border-color: var(--pip-navy);
}
.practice-summary-list {
  display: grid;
  gap: 0.8rem;
  margin-top: 1rem;
}
.practice-summary-list div {
  display: grid;
  grid-template-columns: minmax(160px, 1fr) 2fr;
  gap: 1rem;
  border: 1px solid var(--pip-blue-line);
  border-radius: 0.9rem;
  padding: 0.85rem;
  background: #fff;
}
.practice-summary-list span {
  font-weight: 850;
  color: var(--pip-navy-dark);
}
.support-link-text {
  font-weight: 750;
  color: var(--pip-navy);
}
@media (max-width: 900px) {
  .concept-card-grid.count-2 {
    grid-template-columns: 1fr;
  }
  .practice-summary-list div {
    grid-template-columns: 1fr;
  }
}