/* 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);
}
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;
}
.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-main {
  min-width: 0;
}
.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;
}
.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;
}
@media (max-width: 980px) {
  .viewer-layout {
    grid-template-columns: 1fr;
  }
  .side-controls {
    position: static;
  }
  .three-column-answer,
  .unit-card-grid {
    grid-template-columns: 1fr;
  }
  .info-box {
    min-height: auto;
  }
}
@media (max-width: 760px) {
  .top-nav,
  .hero-card {
    align-items: stretch;
    flex-direction: column;
  }
  .top-links {
    justify-content: flex-start;
  }
  .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;
  }
}
.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));
}
.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;
}
.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;
  }
}
@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;
  }
  .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;
  }
}
.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;
  }
}