:root {
  --bg: #f3f7fb;
  --panel: rgba(255, 255, 255, 0.92);
  --panel-solid: #ffffff;
  --panel-tint: #eef4fa;
  --line: #d7e0ea;
  --line-strong: #bccbd9;
  --text: #0f2236;
  --muted: #56687b;
  --accent: #0e6eb8;
  --accent-strong: #084b80;
  --accent-soft: #dfeeff;
  --accent-soft-2: #edf5ff;
  --shadow: 0 20px 48px rgba(17, 34, 55, 0.08);
  --shadow-soft: 0 12px 28px rgba(17, 34, 55, 0.06);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Aptos", "Segoe UI", "Helvetica Neue", sans-serif;
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(243, 247, 251, 0.98)),
    linear-gradient(90deg, rgba(14, 110, 184, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(14, 110, 184, 0.04) 1px, transparent 1px);
  background-size: auto, 44px 44px, 44px 44px;
}

a {
  color: var(--accent-strong);
  text-decoration: none;
}

a:hover {
  color: var(--accent);
}

.page-shell {
  width: min(1220px, calc(100% - 36px));
  margin: 0 auto;
  padding: 24px 0 54px;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 14px 18px;
  margin-bottom: 24px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(215, 224, 234, 0.96);
  border-radius: 999px;
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-soft);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 800;
  letter-spacing: 0.02em;
}

.brand-mark {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 2px solid var(--accent);
  box-shadow:
    10px 0 0 -2px rgba(14, 110, 184, 0.2),
    20px 0 0 -4px rgba(14, 110, 184, 0.12);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.site-nav a {
  color: var(--muted);
  font-size: 0.95rem;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
}

.site-nav a.is-active,
.site-nav a:hover {
  color: var(--text);
  border-color: var(--accent);
}

.section-shell {
  margin-bottom: 22px;
  padding: 30px;
  border: 1px solid rgba(215, 224, 234, 0.96);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-soft);
}

.section-shell-hero {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(242, 247, 252, 0.95));
}

.section-shell-plain {
  background: rgba(255, 255, 255, 0.9);
}

.section-shell-tinted {
  background:
    linear-gradient(180deg, rgba(238, 244, 250, 0.94), rgba(255, 255, 255, 0.95));
}

.section-shell-featured {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(244, 248, 252, 0.96));
}

.section-shell-study {
  background:
    linear-gradient(180deg, rgba(240, 246, 252, 0.97), rgba(255, 255, 255, 0.95));
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 0.83rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

h1,
h2,
h3,
strong {
  margin: 0;
  line-height: 1.08;
}

h1 {
  font-size: clamp(3rem, 5vw, 4.9rem);
  letter-spacing: -0.05em;
}

h2 {
  font-size: clamp(1.85rem, 3vw, 2.7rem);
  letter-spacing: -0.03em;
}

h3 {
  font-size: 1.08rem;
}

p {
  margin: 0;
}

.section-heading {
  margin-bottom: 22px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.98fr);
  gap: 28px;
  align-items: stretch;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 12px 4px 12px 2px;
}

.hero-text,
.hero-detail,
.info-panel p,
.path-card p,
.example-card p,
.focus-card p,
.maturity-card p,
.workflow-step p,
.site-footer p {
  color: var(--muted);
  line-height: 1.65;
}

.hero-text {
  margin-top: 18px;
  font-size: 1.2rem;
  max-width: 46rem;
}

.hero-subtext {
  margin-top: 16px;
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--accent-strong);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-detail {
  margin-top: 14px;
  max-width: 42rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #fff;
  background: var(--accent);
  box-shadow: 0 14px 28px rgba(14, 110, 184, 0.22);
}

.button-primary:hover {
  color: #fff;
  background: var(--accent-strong);
}

.button-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line);
}

.hero-meta,
.maturity-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.hero-meta div,
.maturity-summary div {
  padding: 16px 18px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}

.meta-label,
.maturity-summary span {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 6px;
}

.hero-meta strong,
.maturity-summary strong {
  font-size: 1.02rem;
}

.hero-board {
  height: 100%;
  display: grid;
  gap: 16px;
  padding: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(237, 244, 251, 0.95));
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.board-track,
.board-diagram {
  padding: 16px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(215, 224, 234, 0.96);
  border-radius: var(--radius-lg);
}

.board-track-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  margin-bottom: 14px;
}

.board-chip {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-strong);
  background: var(--accent-soft);
}

.board-chip-accent {
  background: #eef8ef;
  color: #21613f;
}

.board-label {
  color: var(--muted);
  font-size: 0.92rem;
}

.tile-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.tile-row-six {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.track-tile,
.advanced-pill {
  padding: 14px 12px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--panel-solid);
}

.track-tile strong,
.advanced-pill {
  display: block;
  font-size: 0.92rem;
}

.track-tile span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.84rem;
}

.tile-strong {
  background: var(--accent-soft-2);
  border-color: rgba(14, 110, 184, 0.22);
}

.board-diagram {
  padding: 10px;
  background: linear-gradient(180deg, rgba(252, 254, 255, 0.98), rgba(241, 247, 252, 0.96));
}

.hero-svg {
  width: 100%;
  height: auto;
  display: block;
}

.svg-title {
  fill: var(--text);
  font-size: 17px;
  font-weight: 800;
}

.svg-subtitle {
  fill: var(--muted);
  font-size: 12px;
}

.svg-caption {
  fill: var(--accent-strong);
  font-size: 11px;
  font-weight: 700;
}

.svg-footer {
  fill: var(--muted);
  font-size: 12px;
}

.svg-cells rect {
  fill: rgba(14, 110, 184, 0.2);
  stroke: rgba(14, 110, 184, 0.18);
}

.svg-pill {
  stroke: none;
}

.svg-pill-core {
  fill: #eaf3fe;
}

.svg-pill-opt {
  fill: #edf8f1;
}

.svg-pill-adv {
  fill: #fef4e8;
}

.svg-pill-text {
  fill: var(--text);
  font-size: 11px;
  font-weight: 700;
}

.advanced-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.advanced-pill {
  font-size: 0.84rem;
  color: var(--text);
  line-height: 1.45;
}

.why-grid,
.start-grid,
.advanced-track-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.advanced-track-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.info-panel,
.focus-card,
.maturity-card,
.workflow-step {
  padding: 20px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.info-panel h3,
.focus-card h3,
.maturity-card h3,
.workflow-step h3 {
  margin-bottom: 10px;
}

.path-roadmap {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}

.path-card {
  padding: 20px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
}

.path-card-accent {
  background: linear-gradient(180deg, #f5fbf6, #ffffff);
  border-color: rgba(33, 97, 63, 0.18);
}

.path-range {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 9px;
  margin-bottom: 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.example-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 230px;
  padding: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.99), rgba(245, 249, 253, 0.98));
  border: 1px solid rgba(215, 224, 234, 0.96);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.example-card:hover {
  transform: translateY(-2px);
  transition: transform 160ms ease, box-shadow 160ms ease;
  box-shadow: var(--shadow);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.example-id {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 52px;
  min-height: 34px;
  padding: 0 10px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 800;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border-radius: 999px;
  background: #f0f5fa;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.card-summary {
  min-height: 3.2em;
}

.why-it-matters {
  font-size: 0.95rem;
}

.example-card a {
  margin-top: auto;
  font-weight: 800;
}

.focus-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.7;
}

.maturity-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.maturity-board-groups {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.maturity-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 10px;
}

.progress-bar {
  height: 10px;
  margin-top: 14px;
  background: #edf3f8;
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), #4d9bda);
}

.workflow-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.workflow-step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 800;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  padding: 24px 4px 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

@media (max-width: 1120px) {
  .hero,
  .cards-grid {
    grid-template-columns: 1fr;
  }

  .path-roadmap,
  .advanced-track-grid,
  .maturity-board-groups,
  .workflow-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

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

@media (max-width: 780px) {
  .page-shell {
    width: min(100%, calc(100% - 20px));
    padding-top: 14px;
  }

  .site-header,
  .site-footer,
  .board-track-head,
  .maturity-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .section-shell {
    padding: 22px;
  }

  .hero-meta,
  .maturity-summary,
  .tile-row,
  .tile-row-six,
  .diagram-grid,
  .why-grid,
  .path-roadmap,
  .cards-grid,
  .start-grid,
  .advanced-track-grid,
  .maturity-board,
  .maturity-board-groups,
  .workflow-strip,
  .advanced-grid {
    grid-template-columns: 1fr;
  }
}