/* APScore5 bundle: pillar — generated by scripts/build_css_bundles.py */

/* --- styles/components/pillar.css --- */

/* ============================================================
   pillar.css — Course Pillar page components (reusable for
   AP Bio, AP HUG, AP CSP, etc.). Includes:
   .course-hero, .course-page, .course-main, .course-sidebar,
   .course-dashboard-card, .course-stat-grid,
   .unit-roadmap, .unit-card, .unit-num,
   .flashcard system, .diagnostic-card, .quiz-status,
   .conversion-box, .signup-nudge, .sidebar-card.
   ============================================================ */

.course-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 10% 12%, rgba(123, 163, 232, 0.38), transparent 24rem),
    radial-gradient(circle at 92% 8%, rgba(245, 158, 11, 0.18), transparent 20rem),
    radial-gradient(circle at 45% 110%, rgba(123,163,232,0.14), transparent 24rem),
    linear-gradient(135deg, var(--navy-3), var(--navy) 48%, var(--navy-2));
  color: white;
  padding: 38px 20px 52px;
}

.course-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at top left, black, transparent 68%);
  pointer-events: none;
}

.course-hero-inner {
  position: relative;
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 32px;
  align-items: center;
}

.breadcrumb {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.9rem;
  margin-bottom: 12px;
}

/* Beat /css/apscore5-shared.css global h1–h3 { color: var(--navy) } on dark heroes */
.course-hero .badge {
  color: rgba(255, 255, 255, 0.9);
}

.course-hero .hero-lead {
  color: rgba(255, 255, 255, 0.88);
}

.course-hero h1 {
  color: #ffffff;
  font-size: clamp(2.15rem, 4.55vw, 3.55rem);
  line-height: 1.02;
  margin: 0 0 10px;
  letter-spacing: -0.0589em;
  font-weight: var(--fw-heading-display);
}

.course-hero h2 {
  color: rgba(255,255,255,0.88);
  font-size: 1.08rem;
  line-height: 1.35;
  font-weight: 750;
  letter-spacing: -0.01425em;
  margin: 0 0 14px;
}

.course-hero p {
  color: rgba(255,255,255,0.88);
  font-size: 1.08rem;
  max-width: 720px;
  margin: 0 0 18px;
}

/* Hero forces light text on all `p`; dashboard inner is a light card — restore readable ink/muted */
.course-hero .course-dashboard-inner p {
  color: var(--text);
}

.course-hero .course-dashboard-inner .muted {
  color: var(--muted);
}

.course-dashboard-card {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.18), rgba(255,255,255,0.10));
  border: 1px solid rgba(255,255,255,0.20);
  backdrop-filter: blur(18px);
  border-radius: 30px;
  padding: 18px;
  box-shadow: 0 28px 70px rgba(0,0,0,0.26);
}

.course-dashboard-inner {
  background: rgba(255,255,255,0.96);
  color: var(--text);
  border-radius: 22px;
  padding: 18px;
  box-shadow: 0 18px 44px rgba(0,0,0,0.12);
}

.course-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 14px;
}

.course-stat {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 12px;
}

.course-stat strong {
  display: block;
  color: var(--navy);
  font-size: 1.25rem;
  line-height: 1;
}

.course-stat span {
  color: var(--muted);
  font-size: 0.82rem;
}

.course-page {
  max-width: var(--max);
  margin: -34px auto 84px;
  padding: 0 20px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: 24px;
  align-items: start;
}

.course-main {
  display: grid;
  gap: 24px;
}

.course-sidebar {
  position: sticky;
  top: 88px;
  display: grid;
  gap: 16px;
}

.sidebar-card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow-soft);
  padding: 20px;
}

.sidebar-card h3 {
  margin-bottom: 8px;
}

.sidebar-card p,
.sidebar-card li {
  color: var(--muted);
  font-size: 0.92rem;
}

.sidebar-card ul {
  margin: 10px 0 0;
  padding-left: 18px;
}

.sticky-progress {
  background: rgba(255,255,255,0.92);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 14px;
  box-shadow: var(--shadow-soft);
}

.answer-block {
  background:
    radial-gradient(circle at top right, rgba(123,163,232,0.18), transparent 18rem),
    linear-gradient(180deg, #ffffff, #fbfdff);
}

.direct-answer {
  background: var(--blue-light);
  border: 1px solid #dbeafe;
  border-radius: 20px;
  padding: 18px;
  color: var(--navy);
  font-weight: 720;
  font-size: 1.05rem;
  line-height: 1.58;
  margin-top: 14px;
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 20px;
}

.soft-card {
  background: #fbfdff;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 18px;
  box-shadow: 0 8px 22px rgba(10,15,90,0.04);
}

.soft-card h3 {
  margin-bottom: 8px;
}

.soft-card p,
.soft-card li {
  color: var(--muted);
  font-size: 0.94rem;
}

.soft-card ul {
  margin: 10px 0 0;
  padding-left: 18px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 640px;
}

.data-table th,
.data-table td {
  padding: 13px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.data-table th {
  background: var(--blue-light);
  color: var(--navy);
  font-size: 0.92rem;
}

.data-table tr:last-child td {
  border-bottom: 0;
}

.unit-roadmap {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.unit-card {
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 16px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: linear-gradient(180deg, #ffffff, #fbfdff);
  padding: 18px;
  box-shadow: 0 8px 22px rgba(10,15,90,0.04);
}

.unit-num {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
  color: white;
  display: grid;
  place-items: center;
  font-weight: 950;
  font-size: 1.1rem;
  box-shadow: 0 10px 20px rgba(10,15,90,0.16);
}

.unit-card h3 {
  margin-bottom: 4px;
}

.unit-kicker {
  color: var(--orange-dark);
  font-weight: 950;
  font-size: 0.78rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.unit-card p {
  color: var(--muted);
  margin-bottom: 10px;
}

.concept-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.concept-chip {
  background: var(--blue-light);
  border: 1px solid #dbeafe;
  color: var(--navy);
  border-radius: 999px;
  padding: 6px 9px;
  font-size: 0.82rem;
  font-weight: 850;
}

.trap-box {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: #7c2d12;
  border-radius: 16px;
  padding: 12px;
  font-size: 0.92rem;
}

.diagnostic-card {
  border: 1px solid var(--border);
  border-radius: 22px;
  background: #fcfdff;
  padding: 22px;
  margin-top: 18px;
}

.question-stem {
  color: var(--navy);
  font-size: 1.08rem;
  font-weight: 900;
  line-height: 1.4;
}

.diagnostic-actions {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-top: 16px;
}

.next-question-btn {
  border: 0;
  border-radius: 999px;
  background: var(--navy);
  color: white;
  padding: 11px 16px;
  font-weight: 950;
  cursor: pointer;
  min-height: 44px;
}

.next-question-btn[disabled] {
  opacity: 0.62;
  cursor: not-allowed;
}

.quiz-status {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 800;
}

.signup-nudge {
  display: none;
  margin-top: 14px;
  border: 1px solid #fed7aa;
  background: #fff7ed;
  color: #7c2d12;
  border-radius: 16px;
  padding: 14px;
}

.signup-nudge.show {
  display: block;
}

.flashcard-shell {
  border: 1px solid var(--border);
  border-radius: 24px;
  background: linear-gradient(180deg, #ffffff, #fbfdff);
  padding: 20px;
  margin-top: 18px;
  box-shadow: 0 10px 28px rgba(10,15,90,0.055);
}

.flashcard-stage {
  min-height: 260px;
  perspective: 1000px;
  position: relative;
}

/* Top-right next arrow on the flashcard */
.flash-next-arrow {
  position: absolute !important;
  top: 50% !important;
  right: 16px !important;
  bottom: auto !important;
  left: auto !important;
  width: 68px;
  height: 68px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--brand-dark, #0a0f5a);
  font-size: 1.92rem;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  z-index: 5;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin: 0;
  box-shadow: 0 6px 14px rgba(10,15,90,0.14);
  transition: transform .15s ease, background-color .15s ease, border-color .15s ease;
  transform: translateY(-50%);
}
.flash-next-arrow:hover {
  background: var(--brand-dark, #0a0f5a);
  color: #ffffff;
  border-color: var(--brand-dark, #0a0f5a);
  transform: translateY(-50%) translateX(3px);
}
.flash-next-arrow:focus-visible {
  outline: 2px solid var(--brand-dark, #0a0f5a);
  outline-offset: 2px;
}
.flash-next-arrow:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: translateY(-50%);
}
@media (max-width: 640px) {
  .flash-next-arrow {
    width: 58px; height: 58px;
    top: 50% !important; right: 10px !important;
    font-size: 1.65rem;
  }
}

.flashcard {
  width: 100%;
  min-height: 260px;
  position: relative;
  transform-style: preserve-3d;
  transition: transform .35s ease;
  cursor: pointer;
}

.flashcard.flipped {
  transform: rotateY(180deg);
}

.flash-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  border-radius: 22px;
  padding: 22px;
  padding-right: 104px;
  border: 1px solid var(--border);
  background: radial-gradient(circle at top right, rgba(123,163,232,0.16), transparent 12rem), #fff;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.flash-face.back {
  transform: rotateY(180deg);
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
  color: white;
  border-color: rgba(255,255,255,0.16);
}

.flash-kicker {
  color: var(--orange-dark);
  font-weight: 950;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .78rem;
}

.flash-term {
  color: var(--navy);
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  font-weight: 950;
  letter-spacing: -.04em;
  line-height: 1.12;
  margin: 8px 0;
}

.flash-face.back .flash-term {
  color: white;
  font-size: 1.3rem;
  letter-spacing: -.02em;
}

.flash-note {
  color: var(--muted);
  font-size: .9rem;
}

.flash-face.back .flash-note {
  color: rgba(255,255,255,.72);
}

.flash-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
}

.flash-next {
  border: 0;
  border-radius: 999px;
  background: var(--navy);
  color: white;
  padding: 11px 16px;
  font-weight: 950;
  cursor: pointer;
  min-height: 44px;
}

.flash-next[disabled] {
  opacity: .62;
  cursor: not-allowed;
}

.flash-progress {
  color: var(--muted);
  font-weight: 850;
  font-size: .92rem;
}

.conversion-box {
  background:
    radial-gradient(circle at top right, rgba(245,158,11,0.18), transparent 18rem),
    linear-gradient(135deg, var(--navy-3), var(--navy-2));
  color: white;
  border-radius: 28px;
  padding: 30px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  align-items: center;
  box-shadow: 0 24px 60px rgba(10,15,90,0.20);
}

.conversion-box h2 {
  color: white;
}

.conversion-box p,
.conversion-box li {
  color: rgba(255,255,255,.78);
}

.conversion-box ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.sidebar-stat {
  background:
    radial-gradient(circle at bottom left, rgba(245,158,11,0.22), transparent 12rem),
    linear-gradient(135deg, var(--navy-3), var(--navy-2));
  color: white;
  border-radius: 22px;
  padding: 18px 18px 16px;
  box-shadow: var(--shadow-soft);
}

.sidebar-stat .section-eyebrow {
  color: #fbbf24;
  font-size: 0.72rem;
}

.sidebar-stat .stat-figure {
  font-size: 1.55rem;
  font-weight: 950;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 4px 0 8px;
  color: white;
}

.sidebar-stat .stat-figure span {
  color: #fbbf24;
}

.sidebar-stat p {
  color: rgba(255,255,255,.78);
  font-size: 0.85rem;
  margin: 0;
  line-height: 1.45;
}

.video-placeholder {
  min-height: 260px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, rgba(123,163,232,0.18), transparent 18rem),
    linear-gradient(135deg, #ffffff, #f8fbff);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 24px;
  color: var(--muted);
  margin-top: 18px;
}

.video-placeholder strong {
  color: var(--navy);
  display: block;
  font-size: 1.15rem;
  margin-bottom: 6px;
}

.score-card .score-bars {
  margin-top: 12px;
}

.score-card-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.45;
}

/* Pillar course sidebar: override unit-page.css .score-card (4-col metrics grid). */
.course-sidebar .sidebar-card.score-card {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  width: 100%;
  min-width: 0;
  margin-top: 0;
  grid-template-columns: unset;
  gap: 0;
}

.course-sidebar .sidebar-card.score-card > h3 {
  margin: 0;
  width: 100%;
}

.course-sidebar .sidebar-card.score-card .score-bars {
  margin-top: 12px;
  width: 100%;
}

.course-sidebar .sidebar-card.score-card .score-card-note {
  width: 100%;
  max-width: none;
}

.score-bars {
  display: grid;
  gap: 9px;
  margin-top: 14px;
}

.score-row {
  display: grid;
  grid-template-columns: 22px 1fr 52px;
  gap: 8px;
  align-items: center;
  font-size: 0.86rem;
  color: var(--muted);
}

.score-row span {
  color: var(--navy);
  font-weight: 950;
}

.score-row strong {
  color: var(--navy);
  text-align: right;
  font-size: 0.84rem;
}

.score-track {
  height: 9px;
  border-radius: 999px;
  background: #e2e8f0;
  overflow: hidden;
}

.score-track div {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--orange), var(--orange-2));
}

.comparison-answer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 18px;
}

.comparison-answer-card {
  border: 1px solid var(--border);
  border-radius: 22px;
  background: linear-gradient(180deg, #ffffff, #fbfdff);
  padding: 20px;
  box-shadow: 0 8px 22px rgba(10,15,90,0.04);
}

.comparison-answer-card h3 {
  margin-bottom: 8px;
  font-size: 1.12rem;
}

.comparison-answer-card p {
  color: var(--muted);
  margin-bottom: 12px;
}

.comparison-answer-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: white;
  margin-top: 12px;
}

.comparison-answer-table th,
.comparison-answer-table td {
  padding: 12px 13px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  font-size: 0.94rem;
  white-space: normal;
  overflow-wrap: anywhere;
  word-break: normal;
}

.comparison-answer-table tr:last-child td {
  border-bottom: 0;
}

.comparison-answer-table th {
  background: var(--blue-light);
  color: var(--navy);
  font-weight: 950;
}

.comparison-answer-table td {
  color: var(--muted);
}

.quick-answer-pill {
  display: inline-flex;
  color: var(--orange-dark);
  background: #fff7ed;
  border: 1px solid #fed7aa;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.82rem;
  font-weight: 950;
  margin-bottom: 10px;
}

@media (max-width: 720px) {
  .comparison-answer-table {
      display: block;
      overflow-x: auto;
    }

  .comparison-answer-table th,
    .comparison-answer-table td {
      min-width: 170px;
    }
}

.course-sidebar .sidebar-card,
.course-sidebar .sticky-progress {
  width: 100%;
  min-width: 0;
}

.course-sidebar a {
  color: var(--sidebar-link);
  font-weight: 850;
}

.course-sidebar a:hover {
  color: var(--sidebar-link-hover);
  text-decoration: underline;
  text-underline-offset: 2px;
}

@media (max-width: 1024px) {
  .course-page {
      grid-template-columns: 1fr;
    }

  .course-sidebar {
      position: static;
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 16px;
    }

  .course-sidebar .sticky-progress {
      grid-column: 1 / -1;
    }

  .course-sidebar .sidebar-card {
      box-shadow: 0 10px 26px rgba(10,15,90,0.06);
    }
}

@media (max-width: 700px) {
  .course-sidebar {
      grid-template-columns: 1fr;
    }

  .sidebar-card {
      padding: 18px;
    }

  .score-row {
      grid-template-columns: 22px 1fr 48px;
    }
}

@media (max-width: 980px) {
  .course-hero-inner,
    .course-page,
    .conversion-box {
      grid-template-columns: 1fr;
    }

  .course-sidebar {
      position: static;
    }
}

@media (max-width: 640px) {
  .split-grid,
    .course-stat-grid,
    .unit-card {
      grid-template-columns: 1fr;
    }

  .diagnostic-actions,
    .flash-actions {
      flex-direction: column;
      align-items: stretch;
    }

  .next-question-btn,
    .flash-next {
      width: 100%;
    }
}

/* Pillar page layout hardening for desktop + mobile */
.course-hero-inner > * {
  min-width: 0;
}

.course-main,
.course-main .panel,
.comparison-answer-card {
  min-width: 0;
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table-wrap .data-table {
  min-width: 620px;
}

.comparison-answer-card {
  overflow: visible;
}

@media (max-width: 768px) {
  .course-hero {
    padding: 28px 16px 38px;
  }

  .course-hero h1 {
    font-size: clamp(1.75rem, 8.2vw, 2.35rem);
    line-height: 1.12;
    overflow-wrap: anywhere;
  }

  .course-hero h2 {
    font-size: 1rem;
    line-height: 1.38;
  }

  .course-hero p {
    font-size: 1rem;
    line-height: 1.5;
    max-width: 100%;
  }

  .course-page {
    margin: -24px auto 76px;
    padding: 0 16px;
    gap: 16px;
  }

  .course-main {
    gap: 16px;
  }

  .course-main .panel,
  .final-engagement {
    padding: 22px 18px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    width: 100%;
    min-height: 44px;
  }

  .trust-chip {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }

  .comparison-answer-table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .comparison-answer-table th,
  .comparison-answer-table td {
    min-width: 170px;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .faq summary {
    min-height: 44px;
    line-height: 1.35;
    overflow-wrap: anywhere;
  }
}

@media (max-width: 380px) {
  .course-page {
    padding: 0 12px;
  }

  .course-main .panel,
  .final-engagement {
    padding: 18px 14px;
  }
}


.flash-fullscreen-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 7;
  width: 40px;
  min-height: 40px;
  height: 40px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--navy, #1d2cc4);
  border-radius: 999px;
  min-height: 40px;
  padding: 8px 14px;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
}
.flash-fullscreen-btn:hover {
  text-decoration: underline;
}
.flash-card-wrap.is-fullscreen,
.flashcard-stage.is-fullscreen {
  position: fixed !important;
  inset: 0;
  z-index: 1200;
  background: rgba(7, 11, 67, 0.96);
  padding: clamp(14px, 3vw, 30px);
  display: flex !important;
  align-items: center;
  justify-content: center;
}
.flash-card-wrap.is-fullscreen .flashcard-stage {
  width: min(96vw, 1400px);
  min-height: min(92vh, 980px);
}
.flashcard-stage.is-fullscreen {
  width: 100vw !important;
  min-height: 100vh !important;
}
.flash-card-wrap.is-fullscreen .flashcard,
.flash-card-wrap.is-fullscreen .flash-face,
.flashcard-stage.is-fullscreen .flashcard,
.flashcard-stage.is-fullscreen .flash-face {
  min-height: min(82vh, 840px);
}

.flashcard-stage.is-fullscreen > .flash-next-arrow,
.flash-card-wrap.is-fullscreen > .flash-next-arrow {
  top: 50% !important;
  right: 16px !important;
}


.flash-card-wrap.is-fullscreen .flashcard,
.flashcard-stage.is-fullscreen .flashcard,
.flash-card-wrap.is-fullscreen .flash-face,
.flashcard-stage.is-fullscreen .flash-face {
  width: min(96vw, 1400px);
  min-height: min(92vh, 980px);
}
.flash-card-wrap.is-fullscreen .flash-kicker,
.flashcard-stage.is-fullscreen .flash-kicker {
  font-size: clamp(1rem, 1.4vw, 1.25rem);
  margin-bottom: 14px;
}
.flash-card-wrap.is-fullscreen .flash-term,
.flashcard-stage.is-fullscreen .flash-term {
  font-size: clamp(2.4rem, 5.2vw, 5rem);
  line-height: 1.12;
  max-width: min(92vw, 1120px);
}
.flash-card-wrap.is-fullscreen .flash-note,
.flashcard-stage.is-fullscreen .flash-note {
  font-size: clamp(1.2rem, 1.9vw, 1.8rem);
  line-height: 1.5;
}
.flash-card-wrap.is-fullscreen .full-ad,
.flashcard-stage.is-fullscreen .full-ad,
.flash-card-wrap.is-fullscreen .ad-takeover,
.flashcard-stage.is-fullscreen .ad-takeover {
  width: min(96vw, 1400px);
  min-height: min(92vh, 980px);
  border-radius: 24px;
  font-size: clamp(1.2rem, 2.2vw, 2rem);
  line-height: 1.45;
  display: grid;
  place-items: center;
  text-align: center;
  padding: clamp(26px, 4vw, 60px);
}
.flash-card-wrap.is-fullscreen .ad-takeover strong,
.flashcard-stage.is-fullscreen .ad-takeover strong,
.flash-card-wrap.is-fullscreen .full-ad strong,
.flashcard-stage.is-fullscreen .full-ad strong {
  font-size: clamp(1.5rem, 2.8vw, 2.6rem);
}


/* Fullscreen centering fix: keep flashcard content truly centered */
.flash-card-wrap.is-fullscreen .flash-card,
.flashcard-stage.is-fullscreen .flash-card,
.flash-card-wrap.is-fullscreen .flashcard,
.flashcard-stage.is-fullscreen .flashcard {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  text-align: center !important;
}
.flash-card-wrap.is-fullscreen .flash-face,
.flashcard-stage.is-fullscreen .flash-face {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  text-align: center !important;
  position: relative;
}
.flash-card-wrap.is-fullscreen .flash-face > div:first-child,
.flashcard-stage.is-fullscreen .flash-face > div:first-child {
  width: min(92vw, 1120px);
  margin: 0 auto;
}
.flash-card-wrap.is-fullscreen .flash-note,
.flashcard-stage.is-fullscreen .flash-note {
  position: absolute;
  left: 50%;
  bottom: clamp(16px, 2.2vh, 28px);
  transform: translateX(-50%);
  width: min(88vw, 980px);
  text-align: center;
}


/* Deterministic fullscreen layout (no JS inline sizing) */
.flashcard-stage:fullscreen,
.flash-card-wrap:fullscreen {
  background: rgba(7, 11, 67, 0.96) !important;
  padding: clamp(14px, 2vw, 24px) !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 100vw !important;
  min-height: 100vh !important;
}
.flashcard-stage:fullscreen .flashcard,
.flash-card-wrap:fullscreen .flashcard,
.flashcard-stage:fullscreen .flash-card,
.flash-card-wrap:fullscreen .flash-card,
.flashcard-stage:fullscreen .flash-face,
.flash-card-wrap:fullscreen .flash-face,
.flashcard-stage:fullscreen .full-ad,
.flash-card-wrap:fullscreen .full-ad,
.flashcard-stage:fullscreen .ad-takeover,
.flash-card-wrap:fullscreen .ad-takeover {
  width: min(96vw, 1400px) !important;
  max-width: min(96vw, 1400px) !important;
  min-height: min(92vh, 980px) !important;
  margin: 0 auto !important;
}
.flashcard-stage:fullscreen .flash-face,
.flash-card-wrap:fullscreen .flash-face {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  text-align: center !important;
  position: relative !important;
}
.flashcard-stage:fullscreen .flash-face > div:first-child,
.flash-card-wrap:fullscreen .flash-face > div:first-child {
  width: min(92vw, 1120px) !important;
  margin: 0 auto !important;
}
.flashcard-stage:fullscreen .flash-term,
.flash-card-wrap:fullscreen .flash-term,
.flashcard-stage:fullscreen .flash-card .term,
.flash-card-wrap:fullscreen .flash-card .term {
  font-size: clamp(2.4rem, 5.2vw, 5rem) !important;
  line-height: 1.12 !important;
}
.flashcard-stage:fullscreen .definition,
.flash-card-wrap:fullscreen .definition,
.flashcard-stage:fullscreen .flash-note,
.flash-card-wrap:fullscreen .flash-note {
  font-size: clamp(1.2rem, 2vw, 1.9rem) !important;
}
.flashcard-stage:fullscreen .flash-note,
.flash-card-wrap:fullscreen .flash-note {
  position: absolute !important;
  left: 50% !important;
  bottom: clamp(16px, 2.2vh, 28px) !important;
  transform: translateX(-50%) !important;
  width: min(88vw, 980px) !important;
  text-align: center !important;
}
.flashcard-stage:fullscreen .flash-next-arrow,
.flash-card-wrap:fullscreen .flash-next-arrow {
  display: inline-flex !important;
  top: 50% !important;
  right: 16px !important;
  transform: translateY(-50%) !important;
  z-index: 30 !important;
}
.flashcard-stage:fullscreen .flash-fullscreen-btn,
.flash-card-wrap:fullscreen .flash-fullscreen-btn {
  display: inline-flex !important;
  z-index: 31 !important;
}


/* Fullscreen layout fix: keep card and arrow overlayed, not side-by-side */
.flashcard-stage:fullscreen,
.flash-card-wrap:fullscreen,
.flashcard-stage.is-fullscreen,
.flash-card-wrap.is-fullscreen {
  display: block !important;
  position: fixed !important;
  inset: 0 !important;
  width: 100vw !important;
  min-height: 100vh !important;
  max-width: 100vw !important;
  background: rgba(7, 11, 67, 0.96) !important;
  padding: clamp(14px, 2vw, 24px) !important;
}
.flashcard-stage:fullscreen .flashcard,
.flash-card-wrap:fullscreen .flashcard,
.flashcard-stage:fullscreen .flash-card,
.flash-card-wrap:fullscreen .flash-card,
.flashcard-stage.is-fullscreen .flashcard,
.flash-card-wrap.is-fullscreen .flashcard,
.flashcard-stage.is-fullscreen .flash-card,
.flash-card-wrap.is-fullscreen .flash-card {
  width: min(96vw, 1400px) !important;
  max-width: min(96vw, 1400px) !important;
  min-height: min(92vh, 980px) !important;
  margin: 0 auto !important;
}
.flashcard-stage:fullscreen .flash-next-arrow,
.flash-card-wrap:fullscreen .flash-next-arrow,
.flashcard-stage.is-fullscreen .flash-next-arrow,
.flash-card-wrap.is-fullscreen .flash-next-arrow {
  position: absolute !important;
  top: 50% !important;
  right: 16px !important;
  transform: translateY(-50%) !important;
  z-index: 30 !important;
}
.flashcard-stage:fullscreen .flash-fullscreen-btn,
.flash-card-wrap:fullscreen .flash-fullscreen-btn,
.flashcard-stage.is-fullscreen .flash-fullscreen-btn,
.flash-card-wrap.is-fullscreen .flash-fullscreen-btn {
  position: absolute !important;
  top: 12px !important;
  right: 12px !important;
  z-index: 31 !important;
}



/* --- styles/components/course-orbit.css --- */

/* ============================================================
   course-orbit.css — Reusable animated course hero.
   A central core surrounded by 4 rotating concept nodes plus
   a rotating concept-copy panel. Used on Course Pillar pages
   (Bio, HUG, CSP, …) and optionally on the home page hero.

   Per-course theming via CSS variables on the parent:
     --orbit-accent       (node fill / glow / ring)
     --orbit-accent-dark  (hover / focused state)
     --orbit-accent-light (subtle accents)
   Set on .course-orbit or any ancestor element via inline style.

   Markup pattern:
     <div class="course-orbit-visual">
       <div class="course-orbit" style="--orbit-accent:#16a34a">
         <span class="course-orbit-node">ATP</span>
         <span class="course-orbit-node">DNA</span>
         <span class="course-orbit-node">Cell</span>
         <span class="course-orbit-node">Energy</span>
         <div class="course-orbit-core">
           <div class="course-orbit-core-dot"></div>
         </div>
       </div>
     </div>
     <div class="course-orbit-copy" data-orbit-copy> ...initial copy... </div>
     <script type="application/json" data-orbit-concepts>
       [{"eyebrow":"...","title":"...","desc":"..."}, ...]
     </script>

   The /js/course-orbit.js module reads the JSON, rotates the
   .is-changing class on nodes, and updates the copy panel.
   Respects prefers-reduced-motion (no rotation, first concept).
   ============================================================ */

/* Sensible default if no accent is set */
.course-orbit { --orbit-accent: #16a34a; }

.course-orbit-dashboard {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 16px;
  background:
    radial-gradient(circle at 18% 18%, rgba(123,163,232,0.28), transparent 9rem),
    radial-gradient(circle at 88% 12%, rgba(245,158,11,0.18), transparent 8rem),
    linear-gradient(180deg, rgba(255,255,255,0.98), rgba(248,251,255,0.98));
}

.course-orbit-dashboard {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
}

.course-orbit-dashboard h3 {
  margin-bottom: 5px;
}

.course-orbit-dashboard p {
  margin: 0;
  font-size: 0.94rem;
}

.course-orbit-live-pill {
  background: #fff7ed;
  color: var(--orange-dark);
  border: 1px solid #fed7aa;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.78rem;
  font-weight: 950;
  white-space: nowrap;
}

.course-orbit-visual {
  min-height: 210px;
  border: 1px solid #dbeafe;
  border-radius: 24px;
  background:
    radial-gradient(circle at center, rgba(123,163,232,0.32), transparent 7rem),
    linear-gradient(135deg, #eef5ff, #ffffff);
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}

.course-orbit {
  width: 178px;
  height: 178px;
  border: 2px dashed rgba(10,15,90,0.18);
  border-radius: 999px;
  position: relative;
  animation: bioFloat 6s ease-in-out infinite;
}

.course-orbit::before,
.course-orbit::after {
  content: "";
  position: absolute;
  inset: 28px;
  border: 1px solid rgba(123,163,232,0.45);
  border-radius: 999px;
  transform: rotate(32deg);
}

.course-orbit::after {
  inset: 50px;
  border-color: rgba(245,158,11,0.38);
  transform: rotate(-22deg);
}

.course-orbit-core {
  position: absolute;
  inset: 52px;
  border-radius: 44% 56% 50% 50%;
  background:
    radial-gradient(circle at 38% 36%, rgba(255,255,255,0.98), rgba(255,255,255,0.36) 34%, transparent 35%),
    linear-gradient(135deg, rgba(10,15,90,0.92), rgba(38,50,130,0.92));
  box-shadow: 0 18px 38px rgba(10,15,90,0.22);
  display: grid;
  place-items: center;
}

.course-orbit-core-dot {
  width: 24px;
  height: 24px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--orange), var(--orange-2));
  box-shadow: 0 0 0 10px rgba(245,158,11,0.14);
}

.course-orbit-node {
  position: absolute;
  z-index: 3;
  background: white;
  border: 1px solid #dbeafe;
  color: var(--navy);
  border-radius: 999px;
  padding: 6px 9px;
  font-size: 0.76rem;
  font-weight: 950;
  box-shadow: 0 8px 18px rgba(10,15,90,0.09);
}

.course-orbit-node:nth-child(1) { top: -8px; left: 56px; }

.course-orbit-node:nth-child(2) { right: -18px; top: 66px; }

.course-orbit-node:nth-child(3) { bottom: 8px; left: 18px; }

.course-orbit-node:nth-child(4) { left: -24px; top: 68px; }

.course-orbit-copy {
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 16px;
  background: white;
  box-shadow: 0 8px 22px rgba(10,15,90,0.035);
}

.course-orbit-copy .section-eyebrow {
  margin-bottom: 6px;
}

.course-orbit-copy h4 {
  color: var(--navy);
  font-size: 1.25rem;
  letter-spacing: -0.035em;
  line-height: 1.1;
  margin: 0 0 6px;
}

.course-orbit-copy p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
  margin: 0;
}

.course-orbit-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 9px;
}

.course-orbit-stats div {
  border: 1px solid var(--border);
  background: #fbfdff;
  border-radius: 16px;
  padding: 11px;
}

.course-orbit-stats strong {
  display: block;
  color: var(--navy);
  font-size: 1.35rem;
  line-height: 1;
  margin-bottom: 3px;
}

.course-orbit-stats span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.course-orbit-cta {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 46px;
  border-radius: 999px;
  background: var(--navy);
  color: white;
  font-weight: 950;
  text-decoration: none;
  padding: 12px 16px;
  box-shadow: 0 14px 28px rgba(10,15,90,0.20);
}

@media (max-width: 900px) {
  .course-orbit-dashboard {
      grid-template-columns: 1fr 1fr;
      align-items: center;
    }

  .course-orbit-dashboard,
    .course-orbit-copy,
    .course-orbit-stats,
    .course-orbit-cta {
      grid-column: 1;
    }

  .course-orbit-visual {
      grid-column: 2;
      grid-row: 1 / span 4;
      min-height: 300px;
    }

  .course-orbit {
      width: 210px;
      height: 210px;
    }
}

@media (max-width: 760px) {
  .course-orbit-dashboard {
      grid-template-columns: 1fr;
      gap: 14px;
    }

  .course-orbit-dashboard,
    .course-orbit-copy,
    .course-orbit-stats,
    .course-orbit-cta,
    .course-orbit-visual {
      grid-column: auto;
      grid-row: auto;
    }

  .course-orbit-visual {
      min-height: 235px;
    }

  .course-orbit {
      width: 176px;
      height: 176px;
    }

  .course-orbit-stats {
      grid-template-columns: repeat(3, 1fr) !important;
    }

  .course-orbit-stats div {
      padding: 10px 8px;
    }

  .course-orbit-stats strong {
      font-size: 1.25rem;
    }

  .course-orbit-stats span {
      font-size: 0.72rem;
    }

  .course-orbit-cta {
      width: 100%;
      min-height: 52px;
      font-size: 1rem;
    }
}

.course-orbit-dashboard p,
.course-orbit-dashboard .muted {
  color: #64748b !important;
  opacity: 1 !important;
}

@media (max-width: 760px) {
  .course-orbit-dashboard p {
      font-size: 0.98rem !important;
      line-height: 1.45 !important;
    }
}

.course-orbit-dashboard {
  gap: 12px !important;
}

.course-orbit-dashboard p,
.course-orbit-dashboard .muted {
  color: #64748b !important;
  opacity: 1 !important;
}

@media (max-width: 760px) {
  .course-orbit-dashboard {
      gap: 12px !important;
    }
}

.course-orbit-dashboard {
  gap: 10px !important;
}

.course-orbit-dashboard.is-compact {
  align-items: center !important;
}

.course-orbit-dashboard.is-compact p,
.course-orbit-dashboard p,
.course-orbit-dashboard .muted {
  color: #64748b !important;
  opacity: 1 !important;
  font-weight: 750 !important;
  line-height: 1.4 !important;
  margin: 0 !important;
}

.course-orbit-copy {
  padding: 14px !important;
}

.course-orbit-copy h4 {
  margin-bottom: 5px !important;
}

.course-orbit-copy p {
  margin-bottom: 0 !important;
}

.course-orbit-stats div {
  padding: 10px !important;
}

@media (max-width: 760px) {
  .course-orbit-visual {
      min-height: 270px !important;
    }
}

@media (max-width: 760px) {
  .course-orbit-dashboard {
      gap: 10px !important;
    }

  .course-orbit-visual {
      min-height: 220px !important;
    }

  .course-orbit-dashboard.is-compact {
      gap: 10px !important;
    }
}

.course-orbit-dashboard {
  gap: 10px !important;
}

.course-orbit-dashboard.is-compact {
  align-items: center !important;
}

.course-orbit-dashboard.is-compact p,
.course-orbit-dashboard p,
.course-orbit-dashboard .muted {
  color: #64748b !important;
  opacity: 1 !important;
  font-weight: 750 !important;
  line-height: 1.4 !important;
  margin: 0 !important;
}

.course-orbit-copy {
  padding: 14px !important;
  transition: opacity 0.24s ease, transform 0.24s ease;
}

.course-orbit-copy.is-changing {
  opacity: 0;
  transform: translateY(4px);
}

.course-orbit-copy h4 {
  margin-bottom: 5px !important;
}

.course-orbit-copy p {
  margin-bottom: 0 !important;
}

.course-orbit-stats div {
  padding: 10px !important;
}

.course-orbit-node {
  transition: transform 0.24s ease, opacity 0.24s ease;
}

.course-orbit-node.is-changing {
  opacity: 0.25;
  transform: scale(0.92);
}

@media (max-width: 760px) {
  .course-orbit-visual {
      min-height: 270px !important;
    }
}

@media (max-width: 760px) {
  .course-orbit-dashboard {
      gap: 10px !important;
    }

  .course-orbit-visual {
      min-height: 220px !important;
    }

  .course-orbit-dashboard.is-compact {
      gap: 10px !important;
    }
}

/* ============================================================
   MOBILE — comprehensive responsive rules.
   Required because the orbit and dashboard layout are absolute-
   positioned on desktop. Ported and renamed from the original
   Bio sample's mobile rules. Lives at end of file = highest
   cascade priority.
   ============================================================ */

/* Tablet & smaller laptop (≤980px) — orbit goes 2-col */
@media (max-width: 980px) {
  .course-dashboard-card { padding: 14px; border-radius: 24px; }
  .course-dashboard-inner { padding: 16px; border-radius: 20px; }

  /* Note: bio-concept-dashboard kept as legacy class for the dashboard inner
     wrapper — both Bio and HUG use it. */
  .bio-concept-dashboard {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
  .course-orbit-dashboard,
  .course-orbit-copy,
  .course-orbit-stats,
  .course-orbit-cta {
    grid-column: 1;
  }
  .course-orbit-visual {
    grid-column: 2;
    grid-row: 1 / span 4;
    min-height: 270px;
  }
  .course-orbit { width: 200px; height: 200px; }
}

/* Phone (≤700px) — single column, orbit shrinks */
@media (max-width: 700px) {
  .bio-concept-dashboard {
    grid-template-columns: 1fr !important;
    gap: 12px;
  }
  .course-orbit-dashboard,
  .course-orbit-copy,
  .course-orbit-stats,
  .course-orbit-cta,
  .course-orbit-visual {
    grid-column: auto;
    grid-row: auto;
  }
  .course-orbit-visual { min-height: 220px; }
  .course-orbit { width: 176px; height: 176px; }

  /* Re-position nodes around the smaller orbit */
  .course-orbit-node:nth-child(1) { top: -8px; left: 56px; }
  .course-orbit-node:nth-child(2) { right: -16px; top: 65px; }
  .course-orbit-node:nth-child(3) { bottom: 8px; left: 18px; }
  .course-orbit-node:nth-child(4) { left: -22px; top: 67px; }

  .course-orbit-stats {
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 8px;
  }
  .course-orbit-stats div { padding: 10px 8px; text-align: center; }
  .course-orbit-stats strong { font-size: 1.2rem; }
  .course-orbit-stats span { font-size: 0.72rem; }

  .course-orbit-cta {
    width: 100%;
    min-height: 52px;
    font-size: 1rem;
    text-align: center;
    padding: 14px 18px;
  }

  .course-orbit-dashboard p {
    font-size: 0.95rem !important;
    line-height: 1.45 !important;
  }
  .course-orbit-dashboard.is-compact { gap: 10px; }

  .course-orbit-copy h4 { font-size: 1.05rem; line-height: 1.25; }
  .course-orbit-copy p { font-size: 0.92rem; line-height: 1.45; }
}

/* Tiny phones (≤380px) — pull in further */
@media (max-width: 380px) {
  .course-dashboard-card { padding: 10px; }
  .course-dashboard-inner { padding: 12px; }
  .course-orbit { width: 160px; height: 160px; }
  .course-orbit-visual { min-height: 200px; }
  .course-orbit-node { font-size: 0.78rem; padding: 5px 9px; }
  .course-orbit-stats strong { font-size: 1.05rem; }
  .course-orbit-stats span { font-size: 0.7rem; }
}

/* ============================================================
   .course-orbit--map — Map variant for AP Human Geography.
   Same component, different visual. Hides the concentric rings
   and shows an inline world-map SVG behind the 4 concept nodes.
   Used by adding the modifier class:
     <div class="course-orbit course-orbit--map">
   Same JS rotation works unchanged.
   ============================================================ */
.course-orbit.course-orbit--map {
  /* Override the default circular orbit. Fill the visual container width;
     aspect-ratio gives a clean wide map area instead of a square. */
  position: relative;
  display: block;
  width: 100%;
  max-width: none;
  height: auto;
  aspect-ratio: 16 / 9;
  min-height: 180px;
  border: 0;
  border-radius: 16px;
  background:
    linear-gradient(180deg, #eef4ff 0%, #e1ebff 100%);
  padding: 0;
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(10,15,90,0.08);
}

.course-orbit--map::before,
.course-orbit--map::after { display: none; }

.course-orbit--map .course-orbit-core { display: none; }

.course-orbit-map-bg {
  position: absolute;
  inset: 0;
  width: 100% !important;
  height: 100% !important;
  display: block;
  pointer-events: none;
}

.course-orbit-map-bg path {
  fill: rgba(10, 15, 90, 0.12);
  stroke: rgba(10, 15, 90, 0.28);
  stroke-width: 1;
  stroke-linejoin: round;
  transition: fill 600ms ease;
}

/* Subtle accent shimmer on continent fills, animated via JS-set --active-region */
.course-orbit--map[data-active-region="0"] .course-map-region-0,
.course-orbit--map[data-active-region="1"] .course-map-region-1,
.course-orbit--map[data-active-region="2"] .course-map-region-2,
.course-orbit--map[data-active-region="3"] .course-map-region-3 {
  fill: var(--orbit-accent, #f59e0b);
  fill-opacity: 0.30;
}

/* Node positions for the MAP variant — 4 corners over key regions */
.course-orbit--map .course-orbit-node:nth-child(1) {
  /* Top-left → over North America area */
  top: 14px; left: 14px; right: auto; bottom: auto;
}
.course-orbit--map .course-orbit-node:nth-child(2) {
  /* Top-right → over Asia area */
  top: 14px; right: 14px; left: auto; bottom: auto;
}
.course-orbit--map .course-orbit-node:nth-child(3) {
  /* Bottom-left → over South America / Africa */
  bottom: 14px; left: 14px; top: auto; right: auto;
}
.course-orbit--map .course-orbit-node:nth-child(4) {
  /* Bottom-right → over Australia / Pacific */
  bottom: 14px; right: 14px; top: auto; left: auto;
}

/* Pulse dot sitting next to each node (visual marker on the map) */
.course-orbit--map .course-orbit-node {
  background: #ffffff;
  box-shadow: 0 6px 18px rgba(10,15,90,0.18), 0 0 0 1px rgba(10,15,90,0.08);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.course-orbit--map .course-orbit-node::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 999px;
  background: var(--orbit-accent, #f59e0b);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--orbit-accent, #f59e0b) 25%, transparent);
  flex-shrink: 0;
}

/* MAP variant — mobile sizing (aspect-ratio handles height; just nudge max widths) */
@media (max-width: 980px) {
  .course-orbit.course-orbit--map { max-width: 100%; }
}
@media (max-width: 700px) {
  .course-orbit.course-orbit--map {
    max-width: 100%;
  }
  .course-orbit--map .course-orbit-node {
    font-size: 0.78rem;
    padding: 5px 10px;
  }
  .course-orbit--map .course-orbit-node:nth-child(1) { top: 10px; left: 10px; }
  .course-orbit--map .course-orbit-node:nth-child(2) { top: 10px; right: 10px; }
  .course-orbit--map .course-orbit-node:nth-child(3) { bottom: 10px; left: 10px; }
  .course-orbit--map .course-orbit-node:nth-child(4) { bottom: 10px; right: 10px; }
}
@media (max-width: 380px) {
  .course-orbit--map .course-orbit-node {
    font-size: 0.72rem;
    padding: 4px 8px;
  }
  .course-orbit--map .course-orbit-node::before {
    width: 5px; height: 5px;
  }
}



/* --- styles/components/apbio-journey.css --- */

/* AP Biology pillar — Journey to a 5 hub */

body.apbio-journey-hub .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 211, 122, 0.45);
  background: rgba(255, 255, 255, 0.1);
}

body.apbio-journey-hub .hero-badge .badge-label {
  color: #ffd37a;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

body.apbio-journey-hub .course-hero h1 .bio-hero-accent {
  color: #ffd37a;
}

body.apbio-journey-hub .journey-roadmap.bio-roadmap-shell {
  box-sizing: border-box;
  width: min(100% - var(--space-6), var(--max));
  max-width: var(--max);
  margin: 0 auto var(--space-4);
  padding: var(--space-5) var(--space-5) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  position: relative;
  z-index: 2;
}

body.apbio-journey-hub .roadmap-title {
  color: var(--navy);
  font-weight: var(--fw-heading-semibold);
  font-size: clamp(1.28rem, 2.4vw, 1.72rem);
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin: var(--space-1) 0 0;
}

body.apbio-journey-hub .roadmap-subtitle {
  color: var(--muted);
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.45;
  max-width: 42rem;
}

body.apbio-journey-hub .roadmap-caption {
  color: var(--muted);
  margin: var(--space-2) 0 0;
  padding: 0 var(--space-2) var(--space-1);
  font-size: 0.84rem;
  line-height: 1.4;
  text-align: center;
}

body.apbio-journey-hub .course-page.bio-hub-page {
  margin-top: var(--space-8) !important;
  position: relative;
  z-index: 1;
}

body.apbio-journey-hub .bio-dashboard-top-compact {
  align-items: center;
  gap: var(--space-2);
}

body.apbio-journey-hub .bio-dashboard-tagline {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0 !important;
  padding: 5px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(226, 232, 240, 0.95);
  background: #ffffff;
  color: #4a5276 !important;
  opacity: 1 !important;
  font-size: clamp(0.62rem, 1.35vw, 0.72rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  box-shadow:
    0 6px 16px rgba(10, 15, 90, 0.1),
    0 1px 0 rgba(255, 255, 255, 0.85) inset;
}

body.apbio-journey-hub .bio-live-pill {
  flex-shrink: 0;
}

body.apbio-journey-hub .journey-track {
  overflow: hidden;
  width: 100%;
  padding: var(--space-2) 0 var(--space-1);
  box-sizing: border-box;
}

body.apbio-journey-hub .journey-svg {
  display: block;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: auto;
  margin: 0 auto;
  vertical-align: middle;
}

body.apbio-journey-hub .journey-path {
  fill: none;
  stroke: var(--blue);
  stroke-width: 2;
  stroke-linecap: round;
}

body.apbio-journey-hub .journey-node {
  text-decoration: none;
  color: inherit;
}

body.apbio-journey-hub .journey-node circle {
  fill: var(--white);
  stroke: var(--nav-link);
  stroke-width: 2;
  r: 16;
  transition: fill 0.2s ease, stroke 0.2s ease;
}

body.apbio-journey-hub .journey-node.is-visited circle {
  fill: var(--nav-link);
}

body.apbio-journey-hub .journey-node.is-recommended circle {
  stroke: var(--orange);
  stroke-width: 3;
  animation: apbio-journey-pulse 2s ease-in-out infinite;
}

@keyframes apbio-journey-pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

body.apbio-journey-hub .journey-node-label {
  font-size: 0.62rem;
  font-weight: 700;
  fill: var(--navy);
  text-anchor: middle;
}

body.apbio-journey-hub .journey-node-pct {
  font-size: 0.54rem;
  font-weight: 700;
  fill: var(--muted);
  text-anchor: middle;
}

body.apbio-journey-hub .journey-emoji {
  font-size: 0.78rem;
  text-anchor: middle;
  dominant-baseline: central;
}

@media (min-width: 769px) and (max-width: 1080px) {
  body.apbio-journey-hub .journey-node-label {
    font-size: 0.56rem;
  }

  body.apbio-journey-hub .journey-node-pct {
    font-size: 0.5rem;
  }

  body.apbio-journey-hub .journey-emoji {
    font-size: 0.72rem;
  }
}

body.apbio-journey-hub .journey-stack {
  display: none;
}

body.apbio-journey-hub .choose-mode .mode-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-5);
}

body.apbio-journey-hub .mode-card {
  display: flex;
  flex-direction: column;
  min-height: 2.75rem;
  padding: var(--space-5);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  text-align: left;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

body.apbio-journey-hub .mode-card:hover,
body.apbio-journey-hub .mode-card:focus-visible {
  border-color: var(--blue);
  box-shadow: var(--shadow-soft);
}

body.apbio-journey-hub .mode-card.is-active {
  border-color: var(--navy);
  background: var(--blue-light);
  box-shadow: var(--shadow-soft);
}

body.apbio-journey-hub .mode-card h3 {
  margin: var(--space-2) 0;
  color: var(--navy);
  font-size: 1.05rem;
}

body.apbio-journey-hub .mode-card > p {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0 0 var(--space-3);
}

body.apbio-journey-hub .mode-list {
  margin: 0 0 var(--space-4);
  padding-left: 1.1rem;
  color: var(--text);
  font-size: 0.85rem;
  line-height: 1.45;
}

body.apbio-journey-hub .mode-cta {
  margin-top: auto;
  color: var(--nav-link);
  font-size: 0.85rem;
  font-weight: 800;
}

body.apbio-journey-hub .mode-note {
  margin-top: var(--space-4);
}

body.apbio-journey-hub .mode-relevant-badge {
  display: none;
  margin-left: var(--space-2);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: var(--orange);
  color: var(--navy);
  font-size: 0.7rem;
  font-weight: 800;
  vertical-align: middle;
}

body.apbio-journey-hub.is-mode-active .panel[data-mode-relevant].is-mode-highlight .section-eyebrow::after,
body.apbio-journey-hub.is-mode-active .panel[data-mode-relevant].is-mode-highlight .section-eyebrow::after {
  content: " · Recommended for you";
  color: var(--orange-dark);
  font-weight: 800;
}

body.apbio-journey-hub .todays-mission .mission-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  margin: var(--space-5) 0;
}

body.apbio-journey-hub .mission-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

body.apbio-journey-hub .mission-card:hover,
body.apbio-journey-hub .mission-card:focus-visible {
  border-color: var(--blue);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

body.apbio-journey-hub .mission-card h3 {
  margin: var(--space-2) 0;
  color: var(--navy);
  font-size: 1rem;
}

body.apbio-journey-hub .mission-card p {
  color: var(--muted);
  font-size: 0.875rem;
  margin: 0 0 var(--space-3);
}

body.apbio-journey-hub .mission-cta {
  margin-top: auto;
  color: var(--nav-link);
  font-weight: 800;
  font-size: 0.85rem;
}

body.apbio-journey-hub .units-connect .connections-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-5);
}

body.apbio-journey-hub .connection-card {
  padding: var(--space-5);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  box-shadow: var(--shadow-soft);
}

body.apbio-journey-hub .connection-card h3 {
  margin: 0 0 var(--space-2);
  color: var(--navy);
}

body.apbio-journey-hub .connection-card p {
  color: var(--text);
  font-size: 0.9rem;
  line-height: 1.5;
  margin: 0 0 var(--space-2);
}

body.apbio-journey-hub .connection-links {
  margin-top: var(--space-3);
  font-size: 0.85rem;
  font-weight: 700;
}

body.apbio-journey-hub .connection-links a {
  color: var(--nav-link);
}

body.apbio-journey-hub .unit-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

body.apbio-journey-hub .unit-badges .exam-weight {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--muted);
}

body.apbio-journey-hub .unit-badges .badge {
  font-size: 0.68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
}

body.apbio-journey-hub .badge-foundational {
  background: color-mix(in srgb, var(--success) 18%, var(--white));
  color: #166534;
  border: 1px solid color-mix(in srgb, var(--success) 40%, var(--white));
}

body.apbio-journey-hub .badge-core {
  background: var(--blue-light);
  color: var(--navy);
  border: 1px solid var(--blue);
}

body.apbio-journey-hub .badge-capstone {
  background: color-mix(in srgb, #7c3aed 14%, var(--white));
  color: #5b21b6;
  border: 1px solid color-mix(in srgb, #7c3aed 35%, var(--white));
}

body.apbio-journey-hub .journey-sidebar-wrap {
  margin-bottom: var(--space-5);
}

body.apbio-journey-hub .js-card {
  padding: var(--space-4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  margin-bottom: var(--space-4);
}

body.apbio-journey-hub .js-card h3 {
  margin: 0 0 var(--space-3);
  color: var(--navy);
  font-size: 1rem;
}

body.apbio-journey-hub .js-progress-bar {
  height: 8px;
  border-radius: var(--radius-pill);
  background: var(--bg-2);
  overflow: hidden;
  margin-bottom: var(--space-2);
}

body.apbio-journey-hub .js-progress-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--nav-link), var(--blue));
  border-radius: var(--radius-pill);
  transition: width 0.35s ease;
}

body.apbio-journey-hub .js-progress-pct {
  margin: 0 0 var(--space-4);
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--navy);
}

body.apbio-journey-hub .js-checklist {
  list-style: none;
  margin: 0;
  padding: 0;
}

body.apbio-journey-hub .js-checklist li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.82rem;
  color: var(--text);
  margin-bottom: var(--space-2);
}

body.apbio-journey-hub .js-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
  flex-shrink: 0;
}

body.apbio-journey-hub .js-dot.is-done {
  background: var(--success);
}

body.apbio-journey-hub .js-count {
  margin-left: auto;
  color: var(--muted);
  font-weight: 600;
}

body.apbio-journey-hub .js-tip {
  margin: var(--space-3) 0 0;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--nav-link);
}

body.apbio-journey-hub .js-card-cta p {
  font-size: 0.85rem;
  color: var(--text);
  margin: 0 0 var(--space-3);
}

/* Override legacy .conversion-box 2-column grid (text | bullet list) */
body.apbio-journey-hub .micro-conversions-apbio.conversion-box {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-4);
  grid-template-columns: unset;
  background:
    radial-gradient(circle at 92% 8%, rgba(245, 158, 11, 0.22), transparent 16rem),
    radial-gradient(circle at 8% 100%, rgba(123, 163, 232, 0.2), transparent 14rem),
    linear-gradient(145deg, var(--navy-3) 0%, var(--navy) 48%, var(--navy-2) 100%) !important;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  padding: var(--space-6);
  box-shadow: 0 24px 56px rgba(10, 15, 90, 0.24);
}

body.apbio-journey-hub .micro-conversions-apbio.conversion-box h2 {
  color: #ffffff;
  margin: 0;
}

body.apbio-journey-hub .micro-conversions-apbio.conversion-box > p {
  color: rgba(255, 255, 255, 0.88);
  margin: 0;
  max-width: 40rem;
  line-height: 1.5;
}

body.apbio-journey-hub .micro-conversions-apbio .section-eyebrow {
  color: #ffd37a;
}

body.apbio-journey-hub .micro-conversions-apbio .micro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
  margin: var(--space-2) 0 var(--space-4);
  width: 100%;
}

body.apbio-journey-hub .micro-conversions-apbio .micro-card {
  padding: var(--space-5);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  min-width: 0;
}

body.apbio-journey-hub .micro-conversions-apbio .micro-card h4 {
  margin: var(--space-2) 0;
  color: #ffffff;
  font-size: 1rem;
  line-height: 1.3;
}

body.apbio-journey-hub .micro-conversions-apbio .micro-card p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 0.875rem;
  line-height: 1.45;
  margin: 0;
}

body.apbio-journey-hub .micro-conversions-apbio .hero-ctas {
  margin-top: var(--space-2);
}

body.apbio-journey-hub .journey-mobile-sticky {
  display: none;
}

@media (min-width: 1024px) {
  body.apbio-journey-hub .course-sidebar .journey-sidebar-wrap {
    position: sticky;
    top: var(--space-6);
  }
}

@media (max-width: 1023px) {
  body.apbio-journey-hub .journey-sidebar-wrap {
    display: none;
  }

  body.apbio-journey-hub .journey-mobile-sticky {
    display: block;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 90;
    padding: var(--space-3) var(--space-4);
    background: var(--white);
    border-top: 1px solid var(--border);
    box-shadow: 0 -8px 24px rgba(10, 15, 90, 0.1);
  }

  body.apbio-journey-hub .jms-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-1);
  }

  body.apbio-journey-hub .jms-label {
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--navy);
  }

  body.apbio-journey-hub .jms-pct {
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--nav-link);
  }

  body.apbio-journey-hub .jms-track {
    height: 6px;
    border-radius: var(--radius-pill);
    background: var(--bg-2);
    overflow: hidden;
    margin-bottom: var(--space-1);
  }

  body.apbio-journey-hub .jms-fill {
    height: 100%;
    width: 0;
    background: var(--nav-link);
    transition: width 0.35s ease;
  }

  body.apbio-journey-hub .jms-tip {
    margin: 0;
    font-size: 0.72rem;
    color: var(--muted);
    font-weight: 600;
  }

  body.apbio-journey-hub {
    padding-bottom: 5.5rem;
  }
}

@media (max-width: 768px) {
  body.apbio-journey-hub .journey-svg--desktop {
    display: none;
  }

  body.apbio-journey-hub .journey-stack {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding-left: var(--space-4);
    border-left: 3px solid var(--blue);
  }

  body.apbio-journey-hub .journey-stack-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    min-height: 2.75rem;
    text-decoration: none;
    color: var(--navy);
    font-weight: 700;
    font-size: 0.9rem;
  }

  body.apbio-journey-hub .journey-stack-icon {
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 2px solid var(--nav-link);
    background: var(--white);
    flex-shrink: 0;
  }

  body.apbio-journey-hub .journey-stack-item.is-visited .journey-stack-icon {
    background: var(--nav-link);
  }

  body.apbio-journey-hub .journey-stack-item.is-recommended .journey-stack-icon {
    border-color: var(--orange);
  }

  body.apbio-journey-hub .choose-mode .mode-cards,
  body.apbio-journey-hub .todays-mission .mission-cards,
  body.apbio-journey-hub .units-connect .connections-grid,
  body.apbio-journey-hub .micro-conversions-apbio .micro-grid {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 769px) {
  body.apbio-journey-hub .journey-stack {
    display: none;
  }
}

/* —— Hub page shell & study cycle command center —— */

body.apbio-journey-hub .bio-hub-page {
  background:
    radial-gradient(circle at 0% 0%, rgba(123, 163, 232, 0.12), transparent 42%),
    radial-gradient(circle at 100% 8%, rgba(245, 158, 11, 0.08), transparent 38%),
    var(--bg);
  padding-top: var(--space-2);
}

@media (max-width: 700px) {
  body.apbio-journey-hub .bio-dashboard-tagline {
    font-size: 0.66rem;
    white-space: nowrap;
  }

  body.apbio-journey-hub .course-page.bio-hub-page {
    margin-top: var(--space-5) !important;
  }
}

body.apbio-journey-hub .bio-hub-main {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

body.apbio-journey-hub .bio-roadmap-shell {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: linear-gradient(165deg, #ffffff 0%, #f5f9ff 55%, #fffaf5 100%);
  box-shadow: var(--shadow-soft);
}

body.apbio-journey-hub .panel--hub-featured {
  border-color: color-mix(in srgb, var(--nav-link) 35%, var(--border));
  box-shadow:
    0 12px 36px rgba(10, 15, 90, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

body.apbio-journey-hub .panel--hub-accent {
  background: linear-gradient(180deg, #ffffff, #f8fbff);
}

body.apbio-journey-hub .bio-hub-jump-nav {
  top: 64px;
}

body.apbio-journey-hub .bio-hub-jump-nav .page-jump-list a.is-active {
  border-color: var(--navy);
  background: var(--navy);
  color: #ffffff;
}

body.apbio-journey-hub .bio-hub-jump-nav .page-jump-list a.is-active:hover {
  background: var(--navy-2);
  color: #ffffff;
}

body.apbio-journey-hub .bio-cycle-lead {
  max-width: 52rem;
  margin-bottom: var(--space-5);
}

body.apbio-journey-hub .bio-cycle-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-3);
  position: relative;
}

body.apbio-journey-hub .bio-cycle-steps::before {
  content: "";
  position: absolute;
  top: 2.35rem;
  left: 8%;
  right: 8%;
  height: 3px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--border), var(--blue), var(--border));
  z-index: 0;
}

body.apbio-journey-hub .bio-cycle-step {
  position: relative;
  z-index: 1;
}

body.apbio-journey-hub .bio-cycle-step-link {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-2);
  min-height: 100%;
  padding: var(--space-4) var(--space-3) var(--space-3);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--white);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.15s ease;
}

body.apbio-journey-hub .bio-cycle-step-link:hover,
body.apbio-journey-hub .bio-cycle-step-link:focus-visible {
  border-color: var(--blue);
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
}

body.apbio-journey-hub .bio-cycle-step.is-done .bio-cycle-step-link {
  border-color: color-mix(in srgb, var(--success) 55%, var(--border));
  background: color-mix(in srgb, var(--success) 8%, var(--white));
}

body.apbio-journey-hub .bio-cycle-step.is-current .bio-cycle-step-link {
  border-color: var(--navy);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--nav-link) 22%, transparent);
}

body.apbio-journey-hub .bio-cycle-num {
  position: absolute;
  top: 8px;
  left: 10px;
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  background: var(--navy);
  color: #ffffff;
  font-size: 0.68rem;
  font-weight: 800;
  display: grid;
  place-items: center;
}

body.apbio-journey-hub .bio-cycle-step.is-done .bio-cycle-num {
  background: var(--success);
}

body.apbio-journey-hub .bio-cycle-icon {
  font-size: 1.5rem;
  line-height: 1;
}

body.apbio-journey-hub .bio-cycle-body strong {
  display: block;
  color: var(--navy);
  font-size: 0.95rem;
  margin-bottom: 2px;
}

body.apbio-journey-hub .bio-cycle-desc {
  display: block;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.35;
  margin-bottom: var(--space-1);
}

body.apbio-journey-hub .bio-cycle-status {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--nav-link);
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: var(--blue-light);
}

body.apbio-journey-hub .bio-cycle-step.is-done .bio-cycle-status {
  color: #166534;
  background: color-mix(in srgb, var(--success) 16%, var(--white));
}

body.apbio-journey-hub .bio-cycle-next {
  margin: var(--space-5) 0 0;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--blue-light);
  color: var(--text);
  font-size: 0.92rem;
  line-height: 1.45;
}

body.apbio-journey-hub .bio-cycle-next strong {
  color: var(--navy);
}

/* Hero dashboard journey ring */
body.apbio-journey-hub .bio-hero-journey {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: 0 0 var(--space-3);
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--blue-light), #fff7ed);
  border: 1px solid var(--border);
}

body.apbio-journey-hub .bio-hero-ring {
  width: 3rem;
  height: 3rem;
  flex-shrink: 0;
  transform: rotate(-90deg);
}

body.apbio-journey-hub .bio-hero-ring-track {
  fill: none;
  stroke: var(--border);
  stroke-width: 3;
}

body.apbio-journey-hub .bio-hero-ring-fill {
  fill: none;
  stroke: var(--nav-link);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 113.1;
  stroke-dashoffset: 113.1;
  transition: stroke-dashoffset 0.45s ease;
}

body.apbio-journey-hub .bio-hero-journey-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

body.apbio-journey-hub .bio-hero-journey-pct {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--navy);
  line-height: 1;
}

body.apbio-journey-hub .bio-hero-journey-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Mode & mission polish */
body.apbio-journey-hub .mode-icon,
body.apbio-journey-hub .mission-icon {
  font-size: 1.75rem;
  line-height: 1;
  margin-bottom: var(--space-1);
}

body.apbio-journey-hub .panel.is-mode-highlight {
  outline: 2px solid color-mix(in srgb, var(--orange) 65%, transparent);
  outline-offset: 4px;
}

/* Themed unit roadmap — per-unit color + scan-friendly layout */
body.apbio-journey-hub .unit-roadmap--themed {
  gap: var(--space-4);
  margin-top: var(--space-5);
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card {
  --u-accent: var(--navy);
  --u-bg-start: #ffffff;
  --u-bg-end: #fbfdff;
  --u-chip-bg: var(--blue-light);
  --u-trap-bg: #fff7ed;
  --u-trap-text: #7c2d12;
  position: relative;
  grid-template-columns: 76px 1fr;
  gap: var(--space-4);
  padding: var(--space-5);
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--u-accent) 20%, var(--border));
  background: linear-gradient(135deg, var(--u-bg-start) 0%, var(--u-bg-end) 55%, #ffffff 100%);
  box-shadow: 0 8px 26px color-mix(in srgb, var(--u-accent) 10%, rgba(10, 15, 90, 0.06));
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background: var(--u-accent);
  border-radius: 22px 0 0 22px;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card::after {
  content: "";
  position: absolute;
  right: -28px;
  top: -28px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--u-accent) 14%, transparent) 0%, transparent 72%);
  pointer-events: none;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card:nth-child(even) {
  margin-inline-start: 8px;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card:nth-child(odd) {
  margin-inline-end: 8px;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--u-accent) 38%, var(--border));
  box-shadow: 0 16px 40px color-mix(in srgb, var(--u-accent) 18%, rgba(10, 15, 90, 0.08));
}

body.apbio-journey-hub .unit-roadmap--themed .unit-num {
  width: 62px;
  min-height: 62px;
  height: auto;
  padding: 8px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  background: linear-gradient(145deg, var(--u-accent), color-mix(in srgb, var(--u-accent) 72%, #0a0f5a));
  box-shadow: 0 10px 22px color-mix(in srgb, var(--u-accent) 32%, transparent);
}

body.apbio-journey-hub .unit-roadmap--themed .unit-num-value {
  font-weight: 950;
  font-size: 1.12rem;
  line-height: 1;
  color: #ffffff;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-num-emoji {
  font-size: 0.95rem;
  line-height: 1;
}

body.apbio-journey-hub .unit-roadmap--themed .exam-weight {
  font-weight: 800;
  color: color-mix(in srgb, var(--u-accent) 88%, var(--navy));
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card h3 {
  color: var(--navy);
  letter-spacing: -0.02em;
}

body.apbio-journey-hub .unit-roadmap--themed .concept-chip {
  background: var(--u-chip-bg);
  border-color: color-mix(in srgb, var(--u-accent) 28%, #dbeafe);
  color: color-mix(in srgb, var(--u-accent) 82%, var(--navy));
}

body.apbio-journey-hub .unit-roadmap--themed .trap-box {
  background: var(--u-trap-bg);
  border-color: color-mix(in srgb, var(--u-accent) 26%, #fed7aa);
  color: var(--u-trap-text);
}

body.apbio-journey-hub .unit-roadmap--themed .trap-box strong {
  color: color-mix(in srgb, var(--u-trap-text) 92%, #0a0f5a);
}

body.apbio-journey-hub .unit-card-cta {
  margin-top: var(--space-3);
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card-cta-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--u-accent) 11%, #ffffff);
  border: 1px solid color-mix(in srgb, var(--u-accent) 34%, transparent);
  color: color-mix(in srgb, var(--u-accent) 92%, var(--navy));
  font-weight: 800;
  text-decoration: none;
  transition: background 0.16s ease, color 0.16s ease, border-color 0.16s ease;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card-cta-link:hover {
  background: var(--u-accent);
  border-color: var(--u-accent);
  color: #ffffff;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card:nth-child(1) {
  --u-accent: #0d9488;
  --u-bg-start: #f0fdfa;
  --u-bg-end: #ecfeff;
  --u-chip-bg: #ccfbf1;
  --u-trap-bg: #ecfdf5;
  --u-trap-text: #134e4a;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card:nth-child(2) {
  --u-accent: #2563eb;
  --u-bg-start: #eff6ff;
  --u-bg-end: #f8fbff;
  --u-chip-bg: #dbeafe;
  --u-trap-bg: #eff6ff;
  --u-trap-text: #1e3a8a;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card:nth-child(3) {
  --u-accent: #d97706;
  --u-bg-start: #fffbeb;
  --u-bg-end: #fff7ed;
  --u-chip-bg: #fde68a;
  --u-trap-bg: #fff7ed;
  --u-trap-text: #92400e;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card:nth-child(4) {
  --u-accent: #7c3aed;
  --u-bg-start: #f5f3ff;
  --u-bg-end: #faf5ff;
  --u-chip-bg: #ede9fe;
  --u-trap-bg: #f5f3ff;
  --u-trap-text: #5b21b6;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card:nth-child(5) {
  --u-accent: #db2777;
  --u-bg-start: #fdf2f8;
  --u-bg-end: #fff1f2;
  --u-chip-bg: #fbcfe8;
  --u-trap-bg: #fdf2f8;
  --u-trap-text: #9d174d;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card:nth-child(6) {
  --u-accent: #4f46e5;
  --u-bg-start: #eef2ff;
  --u-bg-end: #f5f3ff;
  --u-chip-bg: #e0e7ff;
  --u-trap-bg: #eef2ff;
  --u-trap-text: #3730a3;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card:nth-child(7) {
  --u-accent: #16a34a;
  --u-bg-start: #f0fdf4;
  --u-bg-end: #ecfdf5;
  --u-chip-bg: #bbf7d0;
  --u-trap-bg: #f0fdf4;
  --u-trap-text: #166534;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card:nth-child(8) {
  --u-accent: #059669;
  --u-bg-start: #ecfdf5;
  --u-bg-end: #f0fdfa;
  --u-chip-bg: #a7f3d0;
  --u-trap-bg: #ecfdf5;
  --u-trap-text: #065f46;
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card.is-visited {
  border-color: color-mix(in srgb, var(--u-accent) 40%, var(--border));
  background: linear-gradient(135deg, var(--u-bg-start) 0%, color-mix(in srgb, var(--u-accent) 8%, #ffffff) 100%);
}

body.apbio-journey-hub .unit-roadmap--themed .unit-card.is-visited .unit-num {
  background: linear-gradient(145deg, var(--u-accent), color-mix(in srgb, var(--u-accent) 55%, var(--nav-link)));
}

body.apbio-journey-hub .starting-point-panel .diagnostic-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--space-5);
  background: linear-gradient(180deg, #ffffff, #f8fbff);
}

body.apbio-journey-hub .choose-mode .mode-card.is-active .mode-cta {
  color: var(--navy);
}

@media (max-width: 980px) {
  body.apbio-journey-hub .bio-cycle-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  body.apbio-journey-hub .bio-cycle-steps::before {
    display: none;
  }
}

@media (max-width: 640px) {
  body.apbio-journey-hub .unit-roadmap--themed .unit-card:nth-child(even),
  body.apbio-journey-hub .unit-roadmap--themed .unit-card:nth-child(odd) {
    margin-inline: 0;
  }

  body.apbio-journey-hub .bio-cycle-steps {
    grid-template-columns: 1fr;
  }

  body.apbio-journey-hub .bio-cycle-step-link {
    flex-direction: row;
    text-align: left;
    align-items: flex-start;
    padding-left: var(--space-5);
  }

  body.apbio-journey-hub .bio-cycle-body {
    flex: 1;
  }
}