:root {
  --font-sans: "SF Pro Text", -apple-system, system-ui, sans-serif;
  --font-mono: "SF Mono", "Fira Code", monospace;

  --color-text-muted-reference: #888888;
  --color-line-reference: #e0dcd8;
  --color-line-strong-reference: #d0ccc8;
  --color-canvas: #e8e4e0;
  --color-surface: #ffffff;
  --color-surface-muted: #f7f5f2;
  --color-surface-soft: #fafaf8;
  --color-line: #e0dcd8;
  --color-line-strong: #d0ccc8;
  --color-line-soft: #f0ece8;
  --color-text: #2d2d2d;
  --color-text-muted: #5f5952;
  --color-text-subtle: #666666;
  --color-text-faint: #6d655d;
  --color-accent: #2d64b4;
  --color-accent-soft: #eff6ff;
  --color-accent-hover: #1e4d8c;
  --color-control-line: #867f77;
  --color-control-line-soft: #b4aca5;
  --color-success-bg: #d1fae5;
  --color-success-fg: #065f46;
  --color-info-bg: #dbeafe;
  --color-info-fg: #1e40af;
  --color-warning-bg: #fef3c7;
  --color-warning-fg: #92400e;
  --color-danger-bg: #fee2e2;
  --color-danger-fg: #991b1b;
  --color-neutral-bg: #f3f4f6;
  --color-neutral-fg: #565d6a;
  --color-tier-5-bg: #ede9fe;
  --color-tier-5-fg: #5b21b6;

  --shadow-card: 0 1px 4px rgba(0, 0, 0, 0.06);

  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 10px;
  --radius-pill: 20px;

  --space-1: 4px;
  --space-2: 6px;
  --space-3: 8px;
  --space-4: 10px;
  --space-5: 12px;
  --space-6: 16px;
  --space-7: 20px;
  --space-8: 24px;
  --space-9: 32px;

  --text-utility: 11px;
  --text-label: 12px;
  --text-body: 13px;
  --text-body-lg: 14px;
  --text-body-xl: 16px;
  --text-section: 18px;
  --text-sidebar-title: 22px;
  --text-page-title: 24px;
  --text-display: 32px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--color-canvas);
  color: var(--color-text);
  line-height: 1.6;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: 8px;
  z-index: 20;
  background: var(--color-text);
  color: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  transform: translateY(-160%);
  transition: transform 0.15s;
}

.skip-link:focus-visible {
  transform: translateY(0);
}

button,
input,
select,
textarea {
  font: inherit;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
}

a:hover {
  text-decoration-thickness: 2px;
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

strong {
  font-weight: 600;
}

code,
.mono {
  font-family: var(--font-mono);
}

.site-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px;
}

.breadcrumb {
  margin-bottom: 24px;
  font-size: var(--text-label);
  color: var(--color-text-muted);
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: var(--space-9);
  align-items: flex-start;
  margin-bottom: 16px;
}

.hero-copy {
  flex: 1;
  min-width: 0;
}

.eyebrow {
  font-size: var(--text-utility);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-2);
}

h1 {
  font-size: var(--text-page-title);
  font-weight: 700;
  margin-bottom: 8px;
}

h2 {
  font-size: var(--text-section);
  font-weight: 600;
  margin: 32px 0 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--color-line-strong);
}

h3 {
  font-size: var(--text-body-lg);
  font-weight: 600;
  margin: 20px 0 8px;
}

p,
li {
  font-size: var(--text-body);
}

p + p {
  margin-top: 12px;
}

.hero-lede {
  max-width: 720px;
  color: var(--color-text-subtle);
  font-size: var(--text-body-lg);
}

.hero-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.page-layout {
  display: flex;
  gap: 32px;
  align-items: flex-start;
}

.page-main {
  flex: 1;
  min-width: 0;
}

.page-toc {
  position: sticky;
  top: 16px;
  width: 220px;
  flex-shrink: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 16px;
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  font-size: var(--text-utility);
  line-height: 1.8;
}

.toc-title {
  font-size: var(--text-utility);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.page-toc a {
  color: var(--color-text-subtle);
  display: block;
  padding: 1px 0;
  text-decoration: none;
}

.page-toc a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.toc-divider {
  border-top: 1px solid var(--color-line);
  margin: 8px 0;
}

.toc-part {
  font-weight: 600;
  color: var(--color-text);
  margin-top: 4px;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 20px;
  margin-bottom: 16px;
}

.card-tight {
  padding: 16px;
}

.surface-muted {
  background: var(--color-surface-muted);
  border-radius: var(--radius-lg);
  padding: 16px;
}

.surface-soft {
  background: var(--color-surface-soft);
  border-radius: var(--radius-lg);
  padding: 16px;
}

.context-banner {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--color-accent-soft);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border-left: 3px solid var(--color-accent);
  padding: 12px 16px;
  margin-bottom: 16px;
}

.context-banner .label {
  font-size: var(--text-utility);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.context-banner .value {
  font-size: var(--text-body-lg);
  font-weight: 600;
  color: var(--color-accent);
}

.context-banner .detail {
  font-size: var(--text-label);
  color: #555555;
}

.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: 12px;
}

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

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

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

.stack-sm > * + * {
  margin-top: 8px;
}

.stack-md > * + * {
  margin-top: 12px;
}

.stack-lg > * + * {
  margin-top: 16px;
}

.meta-kicker {
  font-size: var(--text-utility);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.principle-card h3,
.token-card h3 {
  margin-top: 0;
}

.principle-card p {
  color: var(--color-text-subtle);
}

.rule-list {
  list-style: none;
}

.rule-list li + li {
  margin-top: 8px;
}

.swatch-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.swatch-card {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
}

.swatch {
  height: 72px;
  border-bottom: 1px solid var(--color-line);
}

.swatch-meta {
  padding: 12px;
}

.swatch-name {
  font-size: var(--text-body);
  font-weight: 600;
}

.swatch-value,
.token-note,
.spec-caption {
  font-size: var(--text-utility);
  color: var(--color-text-muted);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-label);
  margin-bottom: 16px;
}

th {
  background: var(--color-surface-muted);
  padding: 8px 12px;
  text-align: left;
  font-weight: 600;
  border-bottom: 2px solid var(--color-line);
}

td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--color-line-soft);
  vertical-align: top;
}

tr:hover td {
  background: var(--color-surface-soft);
}

.table-wrap {
  overflow-x: auto;
}

.badge,
.chip {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-success {
  background: var(--color-success-bg);
  color: var(--color-success-fg);
}

.badge-info {
  background: var(--color-info-bg);
  color: var(--color-info-fg);
}

.badge-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning-fg);
}

.badge-danger {
  background: var(--color-danger-bg);
  color: var(--color-danger-fg);
}

.badge-neutral {
  background: var(--color-neutral-bg);
  color: var(--color-neutral-fg);
}

.badge-violet {
  background: var(--color-tier-5-bg);
  color: var(--color-tier-5-fg);
}

.chip {
  background: var(--color-surface-muted);
  color: var(--color-text);
  border: 1px solid var(--color-line);
  text-transform: none;
  letter-spacing: 0;
  font-weight: 500;
}

.button-row,
.badge-row,
.chip-row,
.progress-row,
.field-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 8px 20px;
  border-radius: var(--radius-md);
  border: none;
  font-size: var(--text-body);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
  text-decoration: none;
}

.button:focus-visible,
.pill-button:focus-visible,
.tab-button:focus-visible,
.select-pill:focus-visible,
.input:focus-visible,
.accordion-button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.button-primary {
  background: var(--color-accent);
  color: var(--color-surface);
}

.button-primary:hover {
  background: var(--color-accent-hover);
  text-decoration: none;
}

.button-secondary {
  background: var(--color-surface-muted);
  color: var(--color-text);
  border: 1px solid var(--color-control-line);
}

.button-secondary:hover {
  background: var(--color-line-soft);
  text-decoration: none;
}

.button-success {
  background: #15803d;
  color: var(--color-surface);
}

.button-success:hover {
  background: #166534;
  text-decoration: none;
}

.pill-button {
  min-height: 40px;
  padding: 8px 12px;
  border: 2px solid var(--color-control-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  color: #555555;
  font-size: var(--text-label);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.pill-button:hover {
  border-color: #93b4d9;
  background: #f8fafc;
}

.pill-button.is-active {
  border-color: var(--color-accent);
  background: #f0f4fa;
  color: var(--color-accent);
}

.pill-button.is-success {
  border-color: #6ee7b7;
  background: var(--color-success-bg);
  color: var(--color-success-fg);
}

.pill-button.is-warning {
  border-color: #fcd34d;
  background: var(--color-warning-bg);
  color: var(--color-warning-fg);
}

.pill-button.is-danger {
  border-color: #fca5a5;
  background: var(--color-danger-bg);
  color: var(--color-danger-fg);
}

.field {
  display: grid;
  gap: 6px;
}

.field label {
  font-size: var(--text-label);
  font-weight: 600;
  color: #555555;
}

.input,
.select-pill {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--color-control-line);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  padding: 6px 10px;
}

.select-pill {
  border-color: var(--color-control-line);
  border-radius: var(--radius-pill);
  padding: 4px 24px 4px 10px;
  font-size: var(--text-label);
  font-weight: 500;
  appearance: none;
  background:
    var(--color-surface)
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23888'/%3E%3C/svg%3E")
    no-repeat
    right 8px center;
  background-size: 10px 6px;
}

.tab-shell {
  border-bottom: 1px solid var(--color-line);
  padding: 0 8px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
}

.tab-button {
  padding: 10px 5px;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  border-bottom: 2px solid transparent;
  font-size: var(--text-utility);
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.15s;
  min-height: 36px;
}

.tab-button:hover {
  color: var(--color-text);
}

.tab-button.is-active {
  color: var(--color-text);
  border-bottom-color: var(--color-text);
}

.tab-button.is-disabled {
  color: #786f68;
  cursor: default;
}

.tab-panel[hidden] {
  display: none;
}

.prop-group-title {
  font-size: var(--text-utility);
  color: var(--color-text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-canvas);
}

.prop-list {
  list-style: none;
}

.prop-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px solid var(--color-line-soft);
  font-size: var(--text-body);
}

.prop-key {
  color: var(--color-text-muted);
}

.prop-value {
  font-weight: 500;
  color: var(--color-text);
  text-align: right;
}

.prop-value.is-highlight {
  color: var(--color-success-fg);
  font-weight: 600;
}

.prop-value.is-warning {
  color: var(--color-warning-fg);
  font-weight: 600;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.stat-box {
  background: var(--color-surface-muted);
  border-radius: var(--radius-lg);
  padding: 12px;
}

.stat-number {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-accent);
}

.stat-label {
  font-size: 10px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 2px;
}

.progress {
  width: 100%;
  height: 6px;
  background: var(--color-canvas);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-sm);
  background: var(--color-accent);
}

.progress-fill.is-success {
  background: #22c55e;
}

.progress-fill.is-warning {
  background: var(--color-warning-fg);
}

.progress-fill.is-danger {
  background: var(--color-danger-fg);
}

.coef-bar {
  width: 80px;
  height: 6px;
  background: var(--color-canvas);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.coef-fill {
  height: 100%;
  background: var(--color-accent);
}

.note {
  font-size: var(--text-label);
  color: var(--color-text-subtle);
  background: var(--color-surface-muted);
  border-left: 3px solid var(--color-line-strong);
  border-radius: var(--radius-md);
  padding: 10px 14px;
}

.formula {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  background: var(--color-surface-muted);
  border-radius: var(--radius-md);
  padding: 8px 12px;
}

.citation {
  font-size: var(--text-utility);
  color: var(--color-text-muted);
  font-style: italic;
}

.accordion {
  display: grid;
  gap: 8px;
}

.accordion-item {
  border: 1px solid var(--color-control-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
}

.accordion-button {
  width: 100%;
  border: none;
  background: var(--color-surface-muted);
  color: var(--color-text);
  padding: 12px 16px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  text-align: left;
}

.accordion-button:hover {
  background: var(--color-line-soft);
}

.accordion-arrow {
  font-size: var(--text-label);
  color: var(--color-text-muted);
  transition: transform 0.2s;
}

.accordion-item.is-open .accordion-arrow {
  transform: rotate(90deg);
}

.accordion-panel {
  padding: 16px;
  border-top: 1px solid var(--color-line-soft);
}

.results-header {
  text-align: center;
  padding: 16px;
  border-radius: var(--radius-lg);
  background: var(--color-surface-muted);
}

.score-circle {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  background: var(--color-success-bg);
  color: var(--color-success-fg);
  margin-bottom: 8px;
}

.event-card,
.rec-card,
.question-card {
  background: var(--color-surface-muted);
  border-radius: var(--radius-lg);
  padding: 12px;
}

.question-card {
  background: var(--color-surface);
  border: 1px solid var(--color-control-line-soft);
}

.event-date,
.helper-text,
.empty-state small,
.loading-state {
  font-size: var(--text-utility);
  color: var(--color-text-muted);
}

.event-title,
.question-title {
  font-size: var(--text-body);
  font-weight: 600;
  margin: 2px 0;
}

.event-meta,
.question-meta {
  font-size: var(--text-label);
  color: var(--color-text-subtle);
}

.helper-text {
  background: var(--color-surface-muted);
  border-radius: var(--radius-sm);
  padding: 6px 8px;
}

.empty-state {
  text-align: center;
  color: var(--color-text-faint);
  padding: 16px 0 8px;
}

.empty-state .glyph {
  font-size: 28px;
  margin-bottom: 6px;
}

.shell-demo {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 480px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.shell-map {
  padding: 16px;
}

.shell-card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 16px;
  min-height: 420px;
}

.shell-map-header {
  margin-bottom: 12px;
}

.shell-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}

.shell-submeta {
  display: flex;
  gap: 10px;
  font-size: var(--text-utility);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.map-placeholder {
  position: relative;
  min-height: 300px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.45), rgba(255, 255, 255, 0.2)),
    linear-gradient(135deg, #f2efe9, #f9f7f4 50%, #ece7e2);
}

.map-placeholder::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(45, 45, 45, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 45, 45, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}

.map-hex {
  position: absolute;
  width: 84px;
  height: 72px;
  clip-path: polygon(25% 6.7%, 75% 6.7%, 100% 50%, 75% 93.3%, 25% 93.3%, 0 50%);
  border: 1px solid rgba(45, 45, 45, 0.12);
  background: rgba(45, 100, 180, 0.12);
}

.map-hex.is-muted {
  background: rgba(146, 64, 14, 0.12);
}

.map-hex.is-success {
  background: rgba(6, 95, 70, 0.14);
}

.legend-strip {
  display: flex;
  gap: 12px;
  align-items: center;
  overflow-x: auto;
  padding: 4px 24px;
  font-size: var(--text-utility);
  white-space: nowrap;
}

.legend-item {
  display: inline-flex;
  gap: 6px;
  align-items: center;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 3px;
}

.shell-sidebar {
  background: var(--color-surface);
  border-left: 1px solid var(--color-line);
  display: flex;
  flex-direction: column;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  margin-bottom: 16px;
}

.site-brand {
  font-size: var(--text-body-lg);
  font-weight: 600;
  color: var(--color-text);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: baseline;
}

.site-brand-main {
  color: var(--color-text);
}

.site-brand-context {
  color: var(--color-text-muted);
  font-weight: 500;
}

.site-brand-link {
  color: inherit;
  text-decoration: none;
}

.site-brand-link:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.site-brand-separator {
  color: var(--color-text-muted);
  font-weight: 500;
}

.site-nav {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
}

.site-nav-link {
  color: var(--color-text-subtle);
  font-size: var(--text-label);
  text-decoration: none;
}

.site-nav-link:hover,
.site-nav-link.is-current {
  color: var(--color-accent);
}

.alert {
  padding: 12px 14px;
  border-radius: var(--radius-lg);
  border-left: 3px solid;
  display: grid;
  gap: 4px;
  font-size: var(--text-label);
}

.alert-title {
  font-weight: 600;
}

.alert-info {
  background: var(--color-accent-soft);
  color: var(--color-info-fg);
  border-left-color: var(--color-accent);
}

.alert-success {
  background: var(--color-success-bg);
  color: var(--color-success-fg);
  border-left-color: var(--color-success-fg);
}

.alert-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning-fg);
  border-left-color: var(--color-warning-fg);
}

.alert-danger {
  background: var(--color-danger-bg);
  color: var(--color-danger-fg);
  border-left-color: var(--color-danger-fg);
}

.choice-list {
  display: grid;
  gap: 8px;
}

.choice {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px 12px;
  border: 1px solid var(--color-control-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.choice input {
  accent-color: var(--color-accent);
  margin-top: 2px;
}

.choice-meta {
  display: grid;
  gap: 2px;
}

.choice-label {
  font-size: var(--text-body);
  font-weight: 600;
}

.choice-help,
.field-help,
.field-error {
  font-size: var(--text-utility);
}

.choice-help,
.field-help {
  color: var(--color-text-muted);
}

.field-error {
  color: var(--color-danger-fg);
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  min-height: 40px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-control-line);
  background: var(--color-surface);
  color: var(--color-text);
  text-decoration: none;
  font-size: var(--text-label);
  font-weight: 600;
}

.page-link:hover {
  background: var(--color-surface-muted);
}

.page-link.is-current {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-surface);
}

.modal-demo {
  background: rgba(45, 45, 45, 0.08);
  border-radius: var(--radius-lg);
  padding: 16px;
}

.modal-card {
  max-width: 420px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 20px;
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
}

.sidebar-pane {
  padding: 24px 20px;
}

.sidebar-callout {
  background: var(--color-surface-muted);
  border-radius: var(--radius-xl);
  padding: 16px;
}

.sidebar-title {
  font-size: var(--text-sidebar-title);
  font-weight: 600;
  margin-bottom: 8px;
}

.sidebar-copy {
  color: var(--color-text-muted);
  font-size: var(--text-body-lg);
}

.doc-frame {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 24px;
}

.doc-mini-toc {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 16px;
}

.doc-mini-toc ul {
  list-style: none;
  display: grid;
  gap: 4px;
}

.doc-mini-toc li {
  font-size: var(--text-utility);
  color: var(--color-text-subtle);
}

.doc-column {
  display: grid;
  gap: 16px;
}

.type-scale {
  display: grid;
  gap: 12px;
}

.type-row {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-line-soft);
}

.type-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.type-spec {
  width: 84px;
  flex-shrink: 0;
}

.type-label {
  font-size: var(--text-utility);
  color: var(--color-text-muted);
}

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

.comparison-card {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 16px;
}

.spec-list {
  list-style: none;
}

.spec-list li + li {
  margin-top: 6px;
}

.spec-key {
  color: var(--color-text-muted);
}

.footer-note {
  margin-top: 24px;
  font-size: var(--text-label);
  color: var(--color-text-muted);
}

.content-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.8fr);
  gap: 16px;
  align-items: start;
}

.content-hero-compact {
  grid-template-columns: minmax(0, 1.9fr) minmax(250px, 0.7fr);
  gap: 12px;
  padding: 16px;
}

.content-hero-single {
  grid-template-columns: 1fr;
}

.content-lead {
  min-width: 0;
}

.content-kicker {
  font-size: var(--text-utility);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 8px;
}

.content-title {
  font-size: var(--text-display);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.content-dek {
  max-width: 780px;
  color: var(--color-text-subtle);
  font-size: var(--text-body-xl);
  line-height: 1.55;
}

.content-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  margin-top: 16px;
  font-size: var(--text-label);
  color: var(--color-text-muted);
}

.content-meta strong {
  color: var(--color-text);
}

.content-rail {
  display: grid;
  gap: 12px;
}

.content-hero-compact .content-kicker {
  margin-bottom: 6px;
}

.content-hero-compact .content-title {
  font-size: 28px;
  margin-bottom: 8px;
}

.content-hero-compact .content-dek {
  font-size: var(--text-body-lg);
  line-height: 1.5;
  max-width: 680px;
}

.content-hero-compact .content-meta {
  margin-top: 10px;
  gap: 8px 12px;
  font-size: var(--text-utility);
}

.content-hero-compact .content-rail {
  gap: 8px;
}

.content-hero-compact .content-rail-card {
  padding: 12px;
}

.content-hero-compact .content-rail-card .value {
  font-size: 18px;
}

.content-hero-compact .metric-cluster {
  gap: 6px;
}

.content-hero-compact .metric-card {
  padding: 10px;
}

.content-hero-compact .metric-card .value {
  font-size: 18px;
}

.content-hero-compact .metric-card .label {
  font-size: 10px;
}

.content-rail-card {
  background: var(--color-surface-muted);
  border-radius: var(--radius-lg);
  padding: 16px;
}

.content-rail-card .label {
  font-size: var(--text-utility);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.content-rail-card .value {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.1;
}

.content-rail-card .detail {
  margin-top: 8px;
  font-size: var(--text-label);
  color: var(--color-text-subtle);
}

.key-points {
  list-style: none;
  display: grid;
  gap: 12px;
}

.key-point {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.key-point-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: 10px;
  font-weight: 700;
}

.article-stream {
  display: grid;
  gap: 16px;
}

.article-body {
  max-width: 760px;
}

.article-body h2 {
  margin-top: 0;
}

.article-body h3 {
  margin-top: 16px;
}

.article-body p,
.article-body li {
  font-size: var(--text-body-lg);
  color: var(--color-text);
}

.article-body ul,
.article-body ol {
  padding-left: 20px;
  margin-top: 12px;
}

.article-body li + li {
  margin-top: 8px;
}

.quote-block {
  border-left: 3px solid var(--color-accent);
  background: var(--color-accent-soft);
  border-radius: var(--radius-lg);
  padding: 16px;
}

.quote-block p {
  font-size: 18px;
  line-height: 1.5;
  color: var(--color-text);
}

.quote-attribution {
  margin-top: 10px;
  font-size: var(--text-label);
  color: var(--color-text-muted);
}

.insight-graphic {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.72), rgba(255,255,255,0.88)),
    linear-gradient(135deg, #f8f6f3, #f1ede8 60%, #ece8e2);
  padding: 16px;
}

.insight-graphic-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 16px;
}

.insight-graphic-title {
  font-size: var(--text-body);
  font-weight: 600;
}

.insight-graphic-meta {
  font-size: var(--text-utility);
  color: var(--color-text-muted);
}

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

.signal-row {
  display: grid;
  grid-template-columns: 130px minmax(0, 1fr) 48px;
  gap: 10px;
  align-items: center;
  font-size: var(--text-label);
}

.signal-label {
  color: var(--color-text-subtle);
}

.signal-bar {
  height: 10px;
  border-radius: 999px;
  background: var(--color-line-soft);
  overflow: hidden;
}

.signal-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--color-accent);
}

.signal-fill.is-soft {
  background: #7da0cf;
}

.signal-fill.is-muted {
  background: #b8d0ef;
}

.signal-value {
  font-family: var(--font-mono);
  color: var(--color-text);
  text-align: right;
}

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

.research-promo {
  display: grid;
  gap: 10px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.story-card,
.story-row,
.collection-card {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.story-card {
  padding: 16px;
}

.story-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 160px;
  gap: 16px;
  padding: 16px;
}

.story-row-side {
  border-left: 1px solid var(--color-line-soft);
  padding-left: 16px;
  display: grid;
  align-content: start;
  gap: 8px;
}

.story-kicker {
  font-size: var(--text-utility);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.story-title {
  font-size: 20px;
  line-height: 1.25;
  font-weight: 600;
  color: var(--color-text);
}

.story-summary {
  margin-top: 8px;
  color: var(--color-text-subtle);
  font-size: var(--text-body-lg);
}

.story-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-top: 12px;
  font-size: var(--text-label);
  color: var(--color-text-muted);
}

.feature-panel {
  display: grid;
  grid-template-columns: minmax(220px, 0.9fr) minmax(0, 1.3fr);
  gap: 16px;
  align-items: stretch;
}

.feature-visual {
  min-height: 220px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at top left, rgba(45, 100, 180, 0.16), transparent 42%),
    radial-gradient(circle at 70% 30%, rgba(6, 95, 70, 0.12), transparent 36%),
    linear-gradient(135deg, #f7f5f2, #efebe6 58%, #e7e2dc);
  border: 1px solid var(--color-line);
  position: relative;
  overflow: hidden;
}

.feature-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(45, 45, 45, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 45, 45, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
}

.feature-visual::after {
  content: "";
  position: absolute;
  left: 14%;
  right: 14%;
  bottom: 18%;
  height: 42%;
  background:
    linear-gradient(90deg,
      rgba(45, 100, 180, 0.2) 0%,
      rgba(45, 100, 180, 0.2) 18%,
      transparent 18%,
      transparent 24%,
      rgba(45, 100, 180, 0.4) 24%,
      rgba(45, 100, 180, 0.4) 42%,
      transparent 42%,
      transparent 48%,
      rgba(45, 100, 180, 0.7) 48%,
      rgba(45, 100, 180, 0.7) 66%,
      transparent 66%,
      transparent 72%,
      rgba(6, 95, 70, 0.5) 72%,
      rgba(6, 95, 70, 0.5) 100%);
  border-radius: 8px 8px 0 0;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

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

.collection-card {
  padding: 16px;
}

.collection-card p {
  color: var(--color-text-subtle);
}

.metric-cluster {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.metric-card {
  background: var(--color-surface-muted);
  border-radius: var(--radius-lg);
  padding: 14px;
}

.metric-card .value {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1.1;
}

.metric-card .label {
  margin-top: 4px;
  font-size: var(--text-utility);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.section-intro {
  max-width: 760px;
  color: var(--color-text-subtle);
  font-size: var(--text-body-lg);
}

.content-cluster {
  display: grid;
  gap: 16px;
}

.roadmap-board {
  overflow-x: auto;
}

.roadmap-board-inner {
  min-width: 780px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
}

.roadmap-columns {
  display: grid;
  grid-template-columns: 180px repeat(var(--roadmap-columns, 4), minmax(140px, 1fr));
  background: var(--color-surface-muted);
  border-bottom: 1px solid var(--color-line);
}

.roadmap-corner,
.roadmap-column {
  padding: 12px 16px;
  font-size: var(--text-utility);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.roadmap-column {
  border-left: 1px solid var(--color-line-soft);
}

.roadmap-lane {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  border-bottom: 1px solid var(--color-line-soft);
}

.roadmap-lane:last-child {
  border-bottom: none;
}

.roadmap-lane-label {
  padding: 16px;
  background: var(--color-surface);
}

.roadmap-lane-name {
  font-size: var(--text-body);
  font-weight: 600;
  color: var(--color-text);
}

.roadmap-lane-note {
  margin-top: 4px;
  font-size: var(--text-utility);
  color: var(--color-text-muted);
}

.roadmap-grid {
  display: grid;
  grid-template-columns: repeat(var(--roadmap-columns, 4), minmax(140px, 1fr));
  grid-auto-rows: minmax(118px, auto);
  gap: 8px;
  padding: 12px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.82), rgba(247, 245, 242, 0.75));
}

.roadmap-card {
  border: 1px solid var(--color-control-line-soft);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  padding: 12px;
  display: grid;
  gap: 8px;
  align-content: start;
}

.roadmap-card.is-planned {
  border-left-color: var(--color-info-fg);
}

.roadmap-card.is-in-progress {
  border-left-color: var(--color-accent);
  background: #fbfdff;
}

.roadmap-card.is-shipping {
  border-left-color: var(--color-success-fg);
  background: #f7fdf9;
}

.roadmap-card.is-done {
  border-left-color: var(--color-success-fg);
}

.roadmap-card.is-paused {
  border-left-color: var(--color-neutral-fg);
}

.roadmap-card-head,
.roadmap-card-meta,
.change-item-head,
.change-item-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.roadmap-card-title {
  font-size: var(--text-body);
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
}

.roadmap-card-summary {
  font-size: var(--text-label);
  color: var(--color-text-subtle);
  line-height: 1.5;
}

.roadmap-card-meta {
  font-size: var(--text-utility);
  color: var(--color-text-muted);
}

.roadmap-health {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--color-text-subtle);
}

.roadmap-health::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-neutral-fg);
}

.roadmap-health.is-on-track::before {
  background: var(--color-success-fg);
}

.roadmap-health.is-at-risk::before {
  background: var(--color-warning-fg);
}

.roadmap-health.is-blocked::before {
  background: var(--color-danger-fg);
}

.legend-stack {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.legend-row {
  display: grid;
  gap: 6px;
  font-size: var(--text-label);
  color: var(--color-text-subtle);
}

.legend-row > :first-child {
  justify-self: start;
}

.change-log {
  display: grid;
  gap: 16px;
}

.change-group {
  display: grid;
  gap: 12px;
}

.change-group-title {
  font-size: var(--text-utility);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.change-list {
  list-style: none;
  display: grid;
  gap: 12px;
}

.change-item {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  padding: 16px;
}

.change-item-title {
  font-size: var(--text-body-lg);
  font-weight: 600;
  color: var(--color-text);
}

.change-item-copy {
  margin-top: 8px;
  color: var(--color-text-subtle);
  font-size: var(--text-body);
}

.change-item-meta {
  margin-top: 10px;
  font-size: var(--text-utility);
  color: var(--color-text-muted);
}

.roadmap-empty {
  padding: 16px;
  border-radius: var(--radius-lg);
  background: var(--color-surface-muted);
  color: var(--color-text-muted);
  font-size: var(--text-label);
}

.roadmap-list {
  display: grid;
  gap: 16px;
}

.roadmap-list-group {
  display: grid;
  gap: 12px;
}

.roadmap-list-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px 12px;
  align-items: start;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-line);
}

.roadmap-list-heading {
  display: grid;
  gap: 4px;
}

.roadmap-list-title {
  font-size: var(--text-body-lg);
  font-weight: 600;
  color: var(--color-text);
}

.roadmap-list-copy {
  max-width: 620px;
  color: var(--color-text-subtle);
  font-size: var(--text-label);
  line-height: 1.5;
}

.roadmap-list-count {
  font-size: var(--text-utility);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.roadmap-items {
  list-style: none;
  display: grid;
  gap: 12px;
}

.roadmap-item {
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  padding: 16px 18px;
  display: grid;
  gap: 6px;
}

.roadmap-item.is-planned {
  border-left-color: var(--color-info-fg);
}

.roadmap-item.is-in-progress {
  border-left-color: var(--color-accent);
  background: #fbfdff;
}

.roadmap-item.is-shipping {
  border-left-color: var(--color-success-fg);
  background: #f7fdf9;
}

.roadmap-item.is-done {
  border-left-color: var(--color-success-fg);
}

.roadmap-item.is-paused {
  border-left-color: var(--color-neutral-fg);
}

.roadmap-item-top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
}

.roadmap-item-title {
  font-size: 16px;
  line-height: 1.3;
  font-weight: 600;
  color: var(--color-text);
}

.roadmap-item-summary {
  color: var(--color-text-subtle);
  font-size: var(--text-body);
  line-height: 1.55;
}

@media (max-width: 1024px) {
  .page-layout,
  .doc-frame,
  .shell-demo,
  .hero {
    grid-template-columns: 1fr;
    flex-direction: column;
  }

  .page-toc {
    position: static;
    width: 100%;
    max-height: none;
  }

  .shell-demo {
    display: block;
  }

  .shell-sidebar {
    border-left: none;
    border-top: 1px solid var(--color-line);
  }

  .grid-4,
  .swatch-grid,
  .related-grid,
  .story-grid,
  .feature-panel,
  .content-hero,
  .split-callout {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .site-shell {
    padding: 16px;
  }

  .grid-2,
  .grid-3,
  .grid-4,
  .gallery-grid,
  .swatch-grid,
  .stat-grid,
  .related-grid,
  .story-grid,
  .feature-panel,
  .content-hero,
  .split-callout,
  .metric-cluster {
    grid-template-columns: 1fr;
  }

  .content-hero-compact {
    padding: 16px;
  }

  .story-row {
    grid-template-columns: 1fr;
  }

  .roadmap-item-top {
    grid-template-columns: 1fr;
  }

  .roadmap-item-side {
    justify-items: start;
    min-width: 0;
  }

  .story-row-side {
    border-left: none;
    border-top: 1px solid var(--color-line-soft);
    padding-left: 0;
    padding-top: 12px;
  }

  .content-title {
    font-size: 26px;
  }

  .content-hero-compact .content-title {
    font-size: 24px;
  }

  .content-dek {
    font-size: var(--text-body-lg);
  }

  .signal-row {
    grid-template-columns: 1fr;
  }

  .roadmap-board-inner {
    min-width: 720px;
  }

  .card {
    overflow-x: auto;
    max-width: calc(100vw - 32px);
  }

  table {
    min-width: 420px;
  }

  .button,
  .pill-button,
  .tab-button,
  .input,
  .select-pill,
  .page-link {
    min-height: 44px;
  }

  .shell-map,
  .sidebar-pane {
    padding: 16px;
  }

  .sidebar-title {
    font-size: var(--text-section);
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }
}