:root {
  --bg: #f7f7f8;
  --panel: #ffffff;
  --ink: #172333;
  --muted: #667085;
  --line: #e5e1da;
  --maroon: #8a1538;
  --maroon-2: #6f102d;
  --navy: #10273f;
  --gold: #c69a45;
  --teal: #1a7a78;
  --blue: var(--maroon);
  --blue-2: var(--maroon-2);
  --sky: var(--teal);
  --green: var(--teal);
  --amber: var(--gold);
  --red: #b42318;
  --soft-blue: #fff1f5;
  --soft-green: #e8f4f3;
  --soft-amber: #fff8e8;
  --soft: #faf8f5;
  --shadow: 0 16px 36px rgba(16, 24, 40, 0.07);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, #ffffff 0, var(--bg) 360px);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  min-height: 72px;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 13px clamp(18px, 4vw, 54px);
  border-bottom: 1px solid rgba(223, 232, 240, 0.9);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 275px;
}

.brand-logo {
  width: 96px;
  height: auto;
  display: block;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.2;
}

.brand small {
  margin-top: 2px;
  color: var(--muted);
  font-size: 12px;
}

.nav {
  margin-left: auto;
  display: flex;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 5px;
}

.nav a {
  padding: 9px 12px;
  border-radius: 999px;
  color: #35465a;
  font-size: 14px;
  font-weight: 800;
}

.nav a.active,
.nav a:hover {
  color: var(--blue);
  background: var(--soft-blue);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 12px;
  background: var(--blue);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: #fff;
}

#app {
  min-height: calc(100vh - 134px);
}

#app:focus {
  outline: 0;
}

.page {
  width: min(1180px, calc(100% - 38px));
  margin: 0 auto;
  padding: 42px 0 62px;
}

.home-page {
  width: min(1480px, calc(100% - 70px));
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
  gap: clamp(22px, 4vw, 44px);
  align-items: stretch;
  margin-bottom: 28px;
}

.home-landing {
  min-height: calc(100vh - 180px);
  display: grid;
  align-content: start;
  gap: 26px;
}

.home-intro {
  max-width: 850px;
}

.home-intro h1 {
  font-size: clamp(42px, 6vw, 72px);
}

.home-intro .lead {
  max-width: 690px;
  font-size: clamp(18px, 2vw, 22px);
}

.portal-panel {
  padding: clamp(24px, 3vw, 34px);
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 18px 55px rgba(16, 24, 40, 0.05);
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 16px;
}

.portal-choice {
  min-height: clamp(150px, 17vw, 205px);
  display: grid;
  align-content: center;
  justify-items: start;
  align-items: center;
  gap: 20px;
  padding: clamp(20px, 2vw, 28px);
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 22px;
  color: #1d2939;
  background: #f8fafc;
  font-size: clamp(28px, 2vw, 30px);
  font-weight: 900;
  line-height: 1.05;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.82);
  transition: background 140ms ease, color 140ms ease, transform 140ms ease, box-shadow 140ms ease;
}

.portal-choice:hover {
  transform: translateY(-3px);
  color: var(--maroon);
  background: #fff;
  box-shadow: 0 18px 38px rgba(16, 24, 40, 0.08);
}

.portal-choice:nth-child(1) {
  background: #fff7ed;
}

.portal-choice:nth-child(2) {
  background: #ecfdf3;
}

.portal-choice:nth-child(3) {
  background: #fff1f5;
}

.portal-choice:nth-child(4) {
  background: #eff6ff;
}

.portal-choice:nth-child(5) {
  background: #f5f3ff;
}

.portal-choice:nth-child(6) {
  background: #f8fafc;
}

.choice-icon {
  width: 58px;
  height: 58px;
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 14px;
  color: var(--maroon);
  background: rgba(255, 255, 255, 0.78);
}

.choice-icon svg {
  width: 28px;
  height: 28px;
}

.portal-choice .choice-icon {
  color: var(--maroon);
}

.portal-choice strong {
  display: block;
  margin-top: 2px;
  color: var(--ink);
  font-size: inherit;
  font-weight: 900;
  line-height: 1.12;
}

.hero-copy {
  min-width: 0;
  display: grid;
  align-content: center;
  padding: clamp(28px, 5vw, 58px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.hero-visual {
  min-height: 420px;
  display: grid;
  align-content: center;
  gap: 18px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(138, 21, 56, 0.08), rgba(26, 122, 120, 0.08)),
    #fff;
  box-shadow: var(--shadow);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--blue-2);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.12;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h1 {
  max-width: 850px;
  font-size: clamp(38px, 6vw, 76px);
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(26px, 3vw, 38px);
}

h3 {
  font-size: 22px;
}

h4 {
  font-size: 16px;
}

.lead {
  max-width: 760px;
  margin: 18px 0 0;
  color: #43546a;
  font-size: clamp(17px, 2vw, 22px);
}

.actions,
.filter-row,
.chip-row,
.download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.actions {
  margin-top: 26px;
}

.button,
.ghost-button,
.pill-button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: 900;
  cursor: pointer;
}

.button {
  border: 1px solid var(--blue);
  color: #fff;
  background: var(--blue);
  box-shadow: 0 14px 28px rgba(138, 21, 56, 0.16);
}

.button:hover {
  background: var(--blue-2);
}

.ghost-button,
.pill-button {
  border: 1px solid #ead1da;
  color: var(--blue);
  background: #fff;
}

.pill-button {
  min-height: 38px;
  border-radius: 999px;
  padding: 8px 13px;
}

.pill-button.active {
  color: #fff;
  border-color: var(--blue);
  background: var(--blue);
}

.section {
  margin-top: 34px;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 18px;
  margin-bottom: 16px;
}

.section-head p {
  max-width: 760px;
  margin: 6px 0 0;
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 16px;
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card,
.panel,
.download-card,
.stat-card,
.lab-card,
.module-card,
.result-box,
.callout {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.card,
.panel,
.download-card,
.stat-card,
.module-card,
.result-box,
.callout {
  padding: 22px;
}

.card {
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.card:hover {
  transform: translateY(-2px);
  border-color: rgba(138, 21, 56, 0.28);
  box-shadow: 0 22px 48px rgba(16, 32, 51, 0.12);
}

.lab-index-card {
  min-height: 190px;
  gap: 12px;
}

.lab-index-card h3 {
  font-size: 19px;
  line-height: 1.25;
}

.lab-index-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.55;
}

.lab-index-card .chip-row {
  margin-top: auto;
}

.card p,
.panel p,
.download-card p,
.module-card p,
.lab-card p,
.result-box p,
.callout p {
  color: var(--muted);
}

.icon {
  width: 42px;
  height: 42px;
  display: inline-grid;
  place-items: center;
  border-radius: 8px;
  color: #fff;
  background: var(--blue);
  font-weight: 900;
}

.stat-card strong {
  display: block;
  color: var(--blue);
  font-size: 30px;
  line-height: 1;
}

.stat-card span {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 5px 10px;
  border-radius: 999px;
  color: var(--blue);
  background: var(--soft-blue);
  font-size: 12px;
  font-weight: 900;
}

.tag.green {
  color: var(--green);
  background: var(--soft-green);
}

.tag.amber {
  color: var(--amber);
  background: var(--soft-amber);
}

.metric-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.metric-tile {
  min-height: 105px;
  padding: 16px;
  border: 1px solid #ead1da;
  border-radius: 8px;
  background: #fff7fa;
}

.metric-tile strong {
  display: block;
  color: var(--blue);
  font-size: 24px;
}

.bars {
  display: grid;
  gap: 12px;
}

.bar-row {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr) 48px;
  gap: 10px;
  align-items: center;
  color: #43546a;
  font-size: 13px;
  font-weight: 800;
}

.bar-row div {
  height: 13px;
  border-radius: 999px;
  background: #eadde3;
  overflow: hidden;
}

.bar-row b {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--blue), var(--sky));
}

.mini-dashboard {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.mini-dashboard div {
  min-height: 96px;
  padding: 14px;
  border: 1px solid #e7ded5;
  border-radius: 8px;
  background: #fff;
}

.mini-dashboard div:first-child {
  grid-column: 1 / -1;
}

.timeline {
  display: grid;
  gap: 14px;
}

.module-card {
  box-shadow: none;
}

.module-card summary {
  cursor: pointer;
  color: var(--blue);
  font-weight: 900;
  font-size: 18px;
}

.module-card ul,
.clean-list {
  margin: 12px 0 0;
  padding-left: 20px;
}

.module-card li,
.clean-list li {
  margin: 7px 0;
  line-height: 1.55;
}

.download-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 18px;
  align-items: center;
}

.dataset-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

table {
  width: 100%;
  border-collapse: collapse;
}

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

th {
  color: var(--blue);
  background: #fbf7f8;
  font-size: 13px;
  text-transform: uppercase;
}

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

.lab-layout {
  display: grid;
  grid-template-columns: 310px minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.lab-sidebar {
  position: sticky;
  top: 92px;
  display: grid;
  gap: 7px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
}

.lab-sidebar-title {
  padding: 6px 10px 12px;
  border-bottom: 1px solid var(--line);
}

.lab-sidebar-title strong {
  display: block;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.1;
}

.lab-sidebar-title span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.lab-sidebar a {
  display: grid;
  gap: 6px;
  padding: 12px;
  border-radius: 8px;
  color: #3e5065;
  font-weight: 800;
}

.lab-nav-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.lab-nav-top b {
  color: var(--maroon);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.lab-nav-top em {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 3px 8px;
  border-radius: 999px;
  color: var(--blue);
  background: #fff;
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
}

.lab-sidebar small {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.38;
}

.lab-sidebar a.active,
.lab-sidebar a:hover {
  color: var(--blue);
  background: var(--soft-blue);
}

.lab-sidebar a.active small,
.lab-sidebar a:hover small {
  color: #344054;
}

.lab-card {
  overflow: hidden;
}

.lab-hero {
  padding: clamp(22px, 3vw, 30px);
  background:
    linear-gradient(135deg, rgba(138, 21, 56, 0.08), rgba(198, 154, 69, 0.08)),
    #fff;
  border-bottom: 1px solid var(--line);
}

.lab-hero h1 {
  max-width: 840px;
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.12;
}

.lab-hero .lead {
  max-width: 760px;
  font-size: 16px;
  line-height: 1.6;
}

.lab-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.lab-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 0;
}

.lab-main {
  padding: 30px;
  font-size: 16px;
  line-height: 1.65;
}

.lab-aside {
  padding: 30px 24px;
  border-left: 1px solid var(--line);
  background: #fbfbfa;
  font-size: 15px;
  line-height: 1.6;
}

.lab-main h2 {
  font-size: clamp(21px, 2vw, 25px);
  line-height: 1.25;
}

.lab-main section:first-child h2 {
  max-width: 780px;
  font-size: clamp(22px, 2.2vw, 28px);
}

.steps {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.steps li {
  counter-increment: steps;
  position: relative;
  min-height: 52px;
  padding: 0 0 20px 50px;
  color: #415168;
  font-size: 16px;
  line-height: 1.65;
}

.steps li strong {
  color: var(--ink);
  font-size: 16px;
}

.steps li::before {
  content: counter(steps);
  position: absolute;
  left: 0;
  top: 0;
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--blue);
  font-weight: 900;
}

.steps li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 15px;
  top: 38px;
  bottom: 8px;
  width: 2px;
  background: #eadde3;
}

.step-tool {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: 999px;
  color: var(--blue);
  background: var(--soft-blue);
  font-size: 12px;
  font-weight: 900;
}

.result-box {
  margin-top: 18px;
  box-shadow: none;
}

.result-box h3 {
  font-size: 17px;
  line-height: 1.25;
}

.result-box.success {
  border-color: #b8e1ce;
  background: #f3fbf7;
}

.result-box.warning {
  border-color: #f1d49b;
  background: #fffaf0;
}

details.challenge {
  margin-top: 18px;
  border: 1px solid #ead1da;
  border-radius: 8px;
  background: #fff9fb;
}

details.challenge summary {
  cursor: pointer;
  padding: 15px 18px;
  color: var(--blue);
  font-size: 16px;
  font-weight: 900;
}

details.challenge div {
  padding: 0 18px 18px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

.search-box {
  width: 100%;
  min-height: 46px;
  padding: 10px 14px;
  border: 1px solid #ead1da;
  border-radius: 8px;
  background: #fff;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: none;
  padding: 28px;
  background: rgba(7, 19, 33, 0.58);
}

.modal-backdrop.open {
  display: grid;
  place-items: center;
}

.modal {
  width: min(900px, 100%);
  max-height: min(760px, calc(100vh - 56px));
  overflow: auto;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 26px 80px rgba(0, 0, 0, 0.28);
}

.modal-head {
  position: sticky;
  top: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.modal-body {
  padding: 20px;
}

.close-button {
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  font-weight: 900;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  padding: 22px clamp(18px, 4vw, 54px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  background: #fff;
  font-size: 13px;
}

@media (max-width: 1060px) {
  .grid.four,
  .grid.three,
  .choice-grid,
  .hero,
  .lab-layout,
  .lab-body {
    grid-template-columns: 1fr;
  }

  .grid.four,
  .choice-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lab-sidebar {
    position: static;
  }

  .lab-aside {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
}

@media (max-width: 760px) {
  .topbar {
    padding: 12px 16px;
  }

  .brand {
    min-width: 0;
    flex: 1 1 auto;
  }

  .brand-logo {
    width: 76px;
  }

  .brand span {
    min-width: 0;
  }

  .brand strong,
  .brand small {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .menu-toggle {
    display: block;
  }

  .nav {
    position: absolute;
    left: 14px;
    right: 14px;
    top: calc(100% + 8px);
    display: none;
    grid-template-columns: 1fr;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
    box-shadow: var(--shadow);
  }

  .nav.open {
    display: grid;
  }

  .nav a {
    border-radius: 8px;
    background: #fbfbfa;
  }

  .page {
    width: min(100% - 28px, 1180px);
    padding-top: 28px;
  }

  .hero-copy,
  .hero-visual,
  .lab-main,
  .lab-aside {
    padding: 20px;
  }

  h1 {
    font-size: 42px;
  }

  .portal-choice {
    min-height: 172px;
    padding: 22px;
  }

  .choice-icon {
    width: 58px;
    height: 58px;
  }

  .choice-icon svg {
    width: 30px;
    height: 30px;
  }

  .portal-choice strong {
    font-size: 24px;
  }

  .grid.four,
  .grid.two,
  .choice-grid,
  .metric-board,
  .download-card,
  .mini-dashboard {
    grid-template-columns: 1fr;
  }

  .download-card .button,
  .actions .button,
  .actions .ghost-button {
    width: 100%;
  }

  .section-head,
  .site-footer {
    display: block;
  }

  .bar-row {
    grid-template-columns: 78px minmax(0, 1fr) 42px;
  }
}

@media print {
  .topbar,
  .site-footer,
  .lab-sidebar,
  .actions,
  .filter-row {
    display: none !important;
  }

  body {
    background: #fff;
  }

  .page {
    width: 100%;
    padding: 0;
  }

  .card,
  .panel,
  .download-card,
  .lab-card {
    box-shadow: none;
    break-inside: avoid;
  }
}
/* Course additions retain the reference portal's palette and components. */
button:disabled { cursor: default; background: #ede9eb; color: #59515a; border-color: #d4cdd0; box-shadow: none; }
a:focus-visible, button:focus-visible, summary:focus-visible, select:focus-visible { outline: 3px solid var(--maroon); outline-offset: 4px; }
[hidden] { display: none !important; }
.code-block { min-width: 0; margin: 16px 0; padding: 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); }
.code-block pre { max-width: 100%; overflow-x: auto; font-size: 14px; line-height: 1.65; padding-bottom: 8px; }
.copy-code { min-height: 36px; padding: 5px 12px; font-size: 13px; }
.copy-status { font-size: 13px; }
.lab-main > .dataset-table-wrap { margin: 18px 0; }
.lab-main > p, td { overflow-wrap: anywhere; }

.mobile-lab-select { display: none; }
.breadcrumbs { color: var(--muted); font-size: 14px; margin: 0 0 20px; }
.prev-next { margin-top: 30px; }
@media (max-width: 900px) {
 .lab-sidebar { display: none; }
 .lab-layout { grid-template-columns: minmax(0,1fr); }
 .mobile-lab-select { display: grid; gap: 8px; margin-bottom: 20px; }
 .mobile-lab-select select { width: 100%; min-width: 0; padding: 12px; border: 1px solid var(--line); border-radius: 8px; background: white; }
}
@media (max-width: 600px) { .lab-aside { grid-template-columns: minmax(0,1fr); } .brand { min-width: 0; } .brand strong { font-size: 14px; } .lab-main { padding: 22px 18px; } }
/* Modern course theme */
:root { --bg:#f7f8fa; --ink:#202631; --muted:#606b78; --line:#e5e7ec; --maroon:#9a2444; --maroon-2:#781a34; --blue:var(--maroon); --blue-2:var(--maroon-2); --soft-blue:#fbf0f3; --shadow:0 5px 22px rgba(25,32,48,.035); }
body { background:var(--bg); font-family: 'Segoe UI',Arial,sans-serif; }
.topbar { min-height:84px; padding:14px max(24px,calc((100vw - 1280px)/2)); gap:20px; background:rgba(255,255,255,.96); }
.brand-logo { width:82px; }
.brand { min-width:270px; }
.brand strong { font-size:15px; }
.nav a { font-size:13px; padding:9px 10px; font-weight:650; }
.page,.home-page { width:min(1280px,calc(100% - 64px)); padding:48px 0 64px; }
h1 { font-size:clamp(36px,4.2vw,58px); font-weight:750; letter-spacing:-.04em; line-height:1.08; }
h2 { font-size:clamp(25px,2.7vw,34px); letter-spacing:-.035em; line-height:1.2; font-weight:700; }
h3 { font-size:20px; letter-spacing:-.02em; line-height:1.3; }
.eyebrow { font-size:11px; letter-spacing:.13em; font-weight:750; }
.lead { font-size:18px; line-height:1.65; color:var(--muted); }
.section { margin-top:40px; }
.section-head { margin-bottom:24px; }
.section-head .lead { max-width:780px; }
.button,.ghost-button { border-radius:10px; font-weight:650; font-size:14px; padding:12px 18px; box-shadow:none; transition:background .18s,transform .18s; }
.button:hover,.ghost-button:hover { transform:translateY(-1px); }
.card,.panel,.download-card,.module-card,.result-box,.callout,.lab-card { border-radius:16px; }
.card,.panel,.download-card,.module-card,.callout { padding:26px; }
.card:hover { box-shadow:0 10px 30px rgba(25,32,48,.06); border-color:#d5b5c0; }
.course-hero { display:grid; grid-template-columns:1.05fr 1fr; gap:48px; align-items:center; padding:14px 0 36px; }
.home-intro h1 { font-size:clamp(44px,4.9vw,70px); letter-spacing:-.045em; line-height:1.06; }
.home-intro h1 span { color:var(--maroon); }
.hero-subtitle { font-size:20px; line-height:1.5; font-weight:600; margin:20px 0 0; }
.home-intro .lead { font-size:17px; max-width:490px; margin-top:14px; }
.status-dot { display:inline-block; height:7px; width:7px; background:var(--maroon); border-radius:50%; margin-right:7px; vertical-align:1px; }
.hero-art { margin:0; position:relative; background:#f0f3f1; border:1px solid #e4e9e6; border-radius:26px; overflow:hidden; }
.hero-art img { display:block; width:100%; height:auto; aspect-ratio:3/2; object-fit:cover; }
.hero-art figcaption { padding:24px 28px; background:#fff; display:grid; gap:8px; }
.hero-art figcaption .tag { justify-self:start; font-size:10px; letter-spacing:.08em; }
.hero-art figcaption strong { font-size:20px; letter-spacing:-.02em; }
.hero-art figcaption > span:last-child { color:var(--muted); font-size:14px; }
.hero-facts { display:flex; gap:26px; margin-top:32px; padding-top:22px; border-top:1px solid var(--line); max-width:450px; }
.hero-facts > span { color:var(--muted); font-size:12px; }
.hero-facts strong { display:block; color:var(--ink); font-size:23px; font-weight:650; margin-bottom:2px; }
.section-note { color:var(--muted); font-size:13px; }
.choice-grid { grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px; }
.portal-choice { position:relative; min-height:158px; display:grid; align-content:start; gap:9px; padding:24px; border:1px solid var(--line); border-radius:16px; font-size:20px; box-shadow:none; }
.portal-choice:nth-child(n) { background:#fff; }
.portal-choice:hover { background:#fffcfd; border-color:#d5b5c0; box-shadow:var(--shadow); }
.choice-icon { width:40px; height:40px; border-radius:10px; background:var(--soft-blue); margin-bottom:4px; }
.choice-icon svg { width:22px; height:22px; }
.portal-choice strong { font-weight:650; }
.choice-description { color:var(--muted); font-size:13px; font-weight:400; line-height:1.4; }
.choice-arrow { position:absolute; top:26px; right:24px; color:#969da8; font-size:20px; font-weight:400; }
.outcomes-section { margin-top:64px; }
.outcome-card { position:relative; box-shadow:none; background:transparent; }
.outcome-number { display:block; color:var(--maroon); font-size:12px; font-weight:700; margin-bottom:20px; }
.outcome-card p { font-size:14px; line-height:1.75; margin-bottom:0; }
.assessment-banner { display:flex; align-items:center; justify-content:space-between; gap:24px; padding:30px; border-radius:18px; border:1px solid #eadce1; background:#fff; }
.assessment-banner h2 { font-size:26px; }
.assessment-banner p:last-child { color:var(--muted); margin-bottom:0; }
.download-card { display:flex; flex-direction:column; align-items:flex-start; justify-content:space-between; gap:20px; box-shadow:none; }
.download-card h3 { margin-top:14px; }
.download-card .button { min-width:120px; }
.module-card { box-shadow:none; }
.module-card summary { font-size:17px; line-height:1.6; }
.module-card li { color:var(--muted); font-size:15px; }
.dataset-table-wrap { border-radius:14px; }
th { background:#f5f3f5; font-size:11px; letter-spacing:.05em; }
td { font-size:14px; line-height:1.65; padding:16px; }
.lab-index-card { display:flex; flex-direction:column; gap:16px; }
.lab-index-card p { font-size:14px; }
.lab-index-card .chip-row { width:100%; align-items:center; justify-content:space-between; font-size:13px; font-weight:600; color:var(--maroon); }
.lab-layout { grid-template-columns:270px minmax(0,1fr); gap:26px; }
.lab-sidebar { top:104px; border-radius:16px; box-shadow:none; max-height:calc(100vh - 124px); overflow:auto; }
.lab-sidebar a { padding:11px; }
.lab-sidebar small { font-size:13px; font-weight:500; }
.lab-hero { background:#fcf7f9; padding:32px; }
.lab-hero h1 { font-size:34px; letter-spacing:-.03em; }
.lab-body { grid-template-columns:minmax(0,1fr); }
.lab-main { padding:32px; }
.lab-main section:first-child h2 { font-size:23px; font-weight:600; }
.lab-main p,.steps li { font-size:15px; line-height:1.85; }
.lab-aside { border-left:0; border-top:1px solid var(--line); display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; background:#fafbfc; }
.lab-aside .result-box { margin-top:0; }
.steps li { padding-left:46px; }
.steps li::before { width:30px; height:30px; font-size:13px; }
.code-block { border-radius:12px; background:#f5f6f8; }
.dashboard-reference { margin:28px 0; }
.dashboard-reference img { width:100%; height:auto; border:1px solid var(--line); border-radius:12px; }
.dashboard-reference figcaption { color:var(--muted); font-size:12px; margin-top:8px; }
.site-footer { padding:24px max(24px,calc((100vw - 1280px)/2)); background:#fff; font-size:12px; }
@media (max-width:1100px) { .topbar { flex-wrap:wrap; gap:10px; } .nav { justify-content:flex-start; } .course-hero { gap:28px; } .hero-facts { gap:20px; } }
@media (max-width:900px) { .course-hero { grid-template-columns:1fr; } .home-intro .lead { max-width:620px; } .hero-art { max-width:680px; } .lab-layout { grid-template-columns:minmax(0,1fr); } .lab-sidebar { display:none; } .section-note { display:none; } }
@media (max-width:760px) { .topbar { min-height:74px; padding:12px 20px; justify-content:space-between; } .brand { min-width:0; } .brand-logo { width:62px; } .brand strong { font-size:13px; } .nav { width:100%; } .page,.home-page { width:calc(100% - 36px); padding-top:30px; } .choice-grid { grid-template-columns:repeat(2,minmax(0,1fr)); } .portal-choice { padding:20px; font-size:18px; } .choice-arrow { top:20px; right:18px; } .course-hero { padding-top:0; } .home-intro h1 { font-size:48px; } .hero-subtitle { font-size:18px; } .lab-main,.lab-hero,.lab-aside { padding:22px; } .lab-aside { grid-template-columns:1fr; } .lab-hero h1 { font-size:28px; } .assessment-banner { align-items:flex-start; flex-direction:column; } .hero-art figcaption { padding:22px; } }
@media (max-width:420px) { .portal-choice { padding:17px; min-height:172px; } .choice-description { font-size:12px; } .hero-facts { gap:22px; } .hero-facts > span { font-size:11px; } .home-intro h1 { font-size:43px; } .hero-art figcaption strong { font-size:18px; } }
@media (prefers-reduced-motion:reduce) { *,*::before,*::after { scroll-behavior:auto !important; transition:none !important; } }
/* Simplified learner entry points */
.course-hero { gap:40px; padding-bottom:16px; }
.hero-art { border-radius:22px; }
.resources-section { margin-top:28px; }
.lab-start { margin:0 0 24px; }
.download-card .button { text-align:center; }
.outcomes-section { margin-top:44px; }