/* Standalone presentation; the application token snapshot is loaded first. */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--background); color: var(--foreground); font-family: var(--carbon-font-sans); font-size: 15px; line-height: 1.55; }
a { color: inherit; }
button, input, select { font: inherit; }
button, a, input, select { border-radius: 0; }
code { font-family: var(--carbon-font-mono); font-size: 0.78em; overflow-wrap: anywhere; }
:focus-visible { outline: 2px solid var(--ring); outline-offset: 3px; }
.skip-link { position: fixed; top: -5rem; left: 1rem; z-index: 100; padding: 0.75rem 1rem; background: var(--primary); color: var(--primary-foreground); }
.skip-link:focus { top: 1rem; }
.topbar { position: sticky; z-index: 20; top: 0; display: flex; min-height: 64px; align-items: center; justify-content: space-between; gap: 1rem; padding: 0 3rem; border-bottom: 1px solid var(--border); background: var(--background); }
.wordmark { display: inline-flex; align-items: center; gap: 0.8rem; font-size: 0.9rem; font-weight: 600; text-decoration: none; }
.mark { display: grid; width: 30px; height: 30px; place-items: center; background: var(--foreground); color: var(--background); font-size: 0.95rem; font-weight: 700; }
.wordmark-sub { color: var(--muted-foreground); font-weight: 400; }
.theme-toggle { min-height: 40px; padding: 0.5rem 0.75rem; border: 1px solid var(--border); background: var(--card); color: var(--foreground); cursor: pointer; font-size: 0.8rem; transition: var(--carbon-transition-color); }
.theme-toggle:hover { background: var(--accent); }
.theme-toggle span { margin-left: 0.8rem; }
.mobile-nav { display: none; }
.layout { display: grid; grid-template-columns: 224px minmax(0, 1fr); max-width: 1600px; margin: auto; }
.sidebar { position: sticky; top: 64px; align-self: start; height: calc(100vh - 64px); padding: 2.5rem 1.5rem 2rem 3rem; border-right: 1px solid var(--border); overflow: auto; }
.side-label, .spec-label { margin: 0; color: var(--muted-foreground); font-family: var(--carbon-font-mono); font-size: 0.65rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; }
.sidebar nav { display: grid; gap: 0.2rem; margin-top: 1.15rem; }
.sidebar nav a { padding: 0.42rem 0.6rem; color: var(--muted-foreground); font-size: 0.82rem; text-decoration: none; }
.sidebar nav a:hover, .sidebar nav a:focus-visible { background: var(--accent); color: var(--foreground); }
.side-note { margin-top: 2.5rem; color: var(--muted-foreground); font-size: 0.7rem; line-height: 1.9; }
.side-note code { display: inline-block; font-size: 0.68rem; }
main { min-width: 0; padding: 0 clamp(1.5rem, 5vw, 5.5rem); }
.hero, .section { max-width: 1120px; margin: 0 auto; }
.hero { padding: clamp(3.5rem, 7vw, 6rem) 0 3rem; }
.eyebrow { display: flex; flex-wrap: wrap; align-items: center; gap: 0.65rem; margin: 0 0 1.3rem; color: var(--primary-text); font-family: var(--carbon-font-mono); font-size: 0.68rem; font-weight: 600; letter-spacing: 0.09em; text-transform: uppercase; }
.eyebrow-dot { width: 7px; height: 7px; background: var(--primary); }
.draft { padding: 0.2rem 0.45rem; border: 1px solid var(--border); color: var(--muted-foreground); font-size: 0.6rem; }
h1, h2, h3, h4, p { margin-top: 0; }
h1 { margin-bottom: 1.4rem; font-size: clamp(2.2rem, 4.6vw, 3.8rem); font-weight: 600; letter-spacing: -0.04em; line-height: 1.04; }
h1 span { color: var(--muted-foreground); }
.hero-copy { max-width: 680px; margin-bottom: 1.75rem; color: var(--muted-foreground); font-size: clamp(0.95rem, 1.3vw, 1.05rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* Buttons ------------------------------------------------------------------ */
.button { display: inline-flex; min-height: var(--carbon-control-md); align-items: center; justify-content: center; gap: 0.6rem; padding: 0.6rem 1rem; border: 1px solid transparent; cursor: pointer; font-size: 0.82rem; font-weight: 500; letter-spacing: 0.16px; text-decoration: none; white-space: nowrap; transition: var(--carbon-transition-color), var(--carbon-transition-press); }
.button:active:not(:disabled) { transform: scale(var(--carbon-motion-press-scale)); }
.button:disabled { cursor: not-allowed; opacity: 0.5; }
.button.primary { background: var(--primary); color: var(--primary-foreground); }
.button.primary:hover:not(:disabled) { background: var(--button-primary-hover); }
.button.primary:active:not(:disabled) { background: var(--button-primary-active); }
.button.secondary { border-color: var(--border); background: var(--secondary); color: var(--secondary-foreground); }
.button.secondary:hover:not(:disabled) { background: var(--button-secondary-hover); }
.button.secondary:active:not(:disabled) { background: var(--button-secondary-active); }
.button.tertiary { background: transparent; color: var(--accent-text); }
.button.tertiary:hover:not(:disabled) { background: var(--accent); }
.button.tertiary:active:not(:disabled) { background: var(--button-secondary-active); }
.button.ghost { background: transparent; color: var(--accent-text); }
.button.ghost:hover:not(:disabled) { background: var(--accent); color: var(--foreground); }
.button.ghost:active:not(:disabled) { background: var(--button-secondary-active); color: var(--foreground); }
.button.danger { background: var(--destructive); color: #ffffff; }
.button.danger:hover:not(:disabled) { background: var(--button-danger-hover); }
.button.danger:active:not(:disabled) { background: var(--button-danger-active); }
.button.size-sm { min-height: var(--carbon-control-sm); padding: 0.35rem 0.75rem; font-size: 0.72rem; }
.button.size-lg { min-height: var(--carbon-control-lg); }
.button.size-xl { min-height: var(--carbon-control-xl); padding-inline: 1rem; font-size: 0.95rem; }
.button.icon-only { width: var(--carbon-control-md); padding: 0; }
.spinner { display: inline-block; width: 16px; height: 16px; flex: none; border: 2px solid currentColor; border-top-color: transparent; border-radius: 50%; animation: demo-spin 700ms linear infinite; }
@keyframes demo-spin { to { transform: rotate(360deg); } }

.hero-meta { display: flex; flex-wrap: wrap; gap: 1rem 2rem; margin-top: 3.5rem; padding-top: 1.25rem; border-top: 1px solid var(--border); color: var(--muted-foreground); font-family: var(--carbon-font-mono); font-size: 0.63rem; letter-spacing: 0.06em; }

.source-list { display: grid; gap: 1px; margin: 2.5rem 0 0; border: 1px solid var(--border); background: var(--border); }
.source-list > div { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: 0.5rem 1.25rem; padding: 1rem 1.25rem; background: var(--card); }
.source-list dt { color: var(--primary-text); font-family: var(--carbon-font-mono); font-size: 0.72rem; }
.source-list dd { margin: 0; }
.source-list dd > code { display: block; color: var(--foreground); }
.source-list dd span { display: block; margin-top: 0.3rem; color: var(--muted-foreground); font-size: 0.8rem; }
.callout { margin-top: 2rem; padding: 1.25rem 1.4rem; border: 1px solid var(--border); border-left: 3px solid var(--primary); background: var(--card); }
.callout p:last-child { max-width: 80ch; margin: 0.55rem 0 0; color: var(--muted-foreground); font-size: 0.85rem; }

/* Sections ----------------------------------------------------------------- */
.section { padding: 4.5rem 0; border-top: 1px solid var(--border); scroll-margin-top: 4rem; }
.section-heading { display: grid; grid-template-columns: 1fr minmax(220px, 340px); gap: 2rem; align-items: end; margin-bottom: 2.25rem; }
.section-heading h2, .closing h2 { margin-bottom: 0; font-size: clamp(1.75rem, 3.2vw, 2.4rem); font-weight: 600; letter-spacing: -0.03em; line-height: 1.1; }
.section-heading > p { margin-bottom: 0.2rem; color: var(--muted-foreground); font-size: 0.85rem; }
.annotation, .muted { color: var(--muted-foreground); font-size: 0.8rem; }
.annotation { max-width: 78ch; margin: 1.25rem 0 0; }

/* Tables ------------------------------------------------------------------- */
.table-title { margin: 2.75rem 0 0.9rem; font-family: var(--carbon-font-mono); font-size: 0.8rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; }
.table-title:first-of-type { margin-top: 0; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); background: var(--card); }
.table-wrap.compact { margin-top: 1rem; }
.doc-table { width: 100%; min-width: 560px; border-collapse: collapse; text-align: left; font-size: 0.78rem; }
.doc-table th { padding: 0.6rem 0.85rem; border-bottom: 1px solid var(--input); background: var(--popover); color: var(--foreground); font-family: var(--carbon-font-mono); font-size: 0.62rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; white-space: nowrap; }
.doc-table td { padding: 0.55rem 0.85rem; border-bottom: 1px solid var(--border); vertical-align: top; color: var(--muted-foreground); }
.doc-table tbody tr:last-child td { border-bottom: 0; }
.doc-table td:first-child, .doc-table td code { color: var(--foreground); }
.doc-table code { font-size: 0.74rem; }
.chip { display: inline-block; width: 12px; height: 12px; margin-right: 0.4rem; border: 1px solid var(--input); vertical-align: -1px; }
.chart-ramp { display: grid; gap: 1px; grid-template-columns: repeat(5, minmax(0, 1fr)); border: 1px solid var(--border); background: var(--border); }
.chart-ramp > div { display: flex; flex-direction: column; gap: 0.35rem; padding: 1rem; background: var(--card); }
.chart-ramp span:last-child { color: var(--muted-foreground); font-size: 0.68rem; }

/* Type --------------------------------------------------------------------- */
.type-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; border: 1px solid var(--border); background: var(--border); }
.space-grid, .motion-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; border: 1px solid var(--border); background: var(--border); }
.type-specimen, .space-grid > div, .motion-demo, .motion-specs { min-width: 0; padding: clamp(1.25rem, 3vw, 2rem); background: var(--card); }
.type-specimen .spec-label { display: block; }
.type-display { margin: 1.75rem 0 1rem; font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 600; letter-spacing: -0.035em; line-height: 1.1; }
.mono-specimen > p:nth-child(2) { margin: 1.5rem 0; font-family: var(--carbon-font-mono); font-size: 0.85rem; line-height: 1.9; overflow-wrap: anywhere; }
.spec-list { display: grid; gap: 0.5rem; margin: 0; font-size: 0.75rem; }
.spec-list > div { display: grid; grid-template-columns: 72px minmax(0, 1fr); gap: 0.75rem; }
.spec-list dt { color: var(--muted-foreground); font-family: var(--carbon-font-mono); font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.06em; }
.spec-list dd { margin: 0; color: var(--muted-foreground); }
.spec-list dd code { color: var(--foreground); }
.eyebrow-demo { margin: 1.5rem 0 0.75rem; font-family: var(--carbon-font-mono); font-size: 12px; line-height: 1.6; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted-foreground); }
.spec-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; margin-top: 1.5rem; border: 1px solid var(--border); background: var(--border); }
.spec-grid > div { min-width: 0; padding: 1.25rem; background: var(--card); }
.spec-grid > div > code { display: block; margin: 0.5rem 0; color: var(--accent-text); font-size: 0.72rem; }
.spec-grid p { margin: 0; color: var(--muted-foreground); font-size: 0.75rem; }

/* Space -------------------------------------------------------------------- */
.space-steps { display: flex; min-height: 110px; flex-wrap: wrap; align-items: end; gap: 0.8rem; padding: 1rem 0 0.5rem; }
.space-steps span { display: flex; min-width: 22px; flex-direction: column; align-items: center; gap: 0.5rem; color: var(--muted-foreground); font-family: var(--carbon-font-mono); font-size: 0.65rem; }
.space-steps span::before { width: max(4px, var(--step)); height: var(--step); background: var(--primary); content: ''; }
.control-scale { display: grid; gap: 1rem; padding-top: 1rem; }
.control-scale > div { display: grid; grid-template-columns: 20px 160px minmax(0, 1fr); gap: 0.9rem; align-items: center; font-size: 0.75rem; color: var(--muted-foreground); }
.control-box { display: block; width: 20px; background: var(--primary); }

/* Elevation ---------------------------------------------------------------- */
.elevation-grid, .principle-grid, .rule-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.elevation-card { min-width: 0; padding: 1.5rem; border: 1px solid var(--border); background: var(--card); }
.elevation-card strong { display: block; margin-top: 2rem; font-size: 1.05rem; }
.elevation-card code { display: block; margin-top: 0.2rem; color: var(--muted-foreground); }
.elevation-card p { max-width: 340px; margin: 1rem 0 0; color: var(--muted-foreground); font-size: 0.82rem; }
.elevation-card.flat { box-shadow: var(--carbon-shadow-none); }
.elevation-card.raised { box-shadow: var(--carbon-shadow-raised); }
.elevation-card.overlay { box-shadow: var(--carbon-shadow-overlay); }

/* Motion ------------------------------------------------------------------- */
.motion-stage { display: grid; min-height: 135px; place-items: center; margin: 1.3rem 0; border: 1px solid var(--border); background: var(--background); }
.motion-object { padding: 0.75rem 1rem; border: 1px solid var(--border); background: var(--card); box-shadow: var(--carbon-shadow-raised); font-size: 0.8rem; }
.motion-object.is-running { animation: var(--carbon-animation-rise-in); }
.status-dot { display: inline-block; width: 7px; height: 7px; margin-right: 0.5rem; background: var(--success); }
.motion-demo .muted { margin: 1rem 0 0; }
.motion-specs { display: grid; align-content: center; }
.motion-specs div { display: flex; justify-content: space-between; gap: 1rem; padding: 0.7rem 0; border-bottom: 1px solid var(--border); font-size: 0.78rem; }
.motion-specs div:last-child { border-bottom: 0; }
.motion-specs code { color: var(--primary-text); }

/* Component section -------------------------------------------------------- */
.component-index { display: flex; flex-wrap: wrap; gap: 0.4rem; margin: 0 0 1.5rem; padding: 0; }
.component-index a { padding: 0.28rem 0.6rem; border: 1px solid var(--border); background: var(--card); color: var(--muted-foreground); font-family: var(--carbon-font-mono); font-size: 0.68rem; text-decoration: none; }
.component-index a:hover, .component-index a:focus-visible { border-color: var(--input); background: var(--accent); color: var(--foreground); }
.component { margin-top: 3rem; padding-top: 2.5rem; border-top: 1px solid var(--border); scroll-margin-top: 4rem; }
.component:first-of-type { margin-top: 1.5rem; }
.component-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: 0.75rem; }
.component-head > div { min-width: 0; }
.component-head h3 { margin: 0.3rem 0 0; font-family: var(--carbon-font-mono); font-size: 1.05rem; font-weight: 600; letter-spacing: -0.01em; }
.coverage { flex: none; margin-top: 0.15rem; padding: 0.25rem 0.6rem; border: 1px solid var(--border); font-family: var(--carbon-font-mono); font-size: 0.6rem; letter-spacing: 0.07em; text-transform: uppercase; white-space: nowrap; }
.coverage.tokens { border-color: var(--success); color: var(--success-text); }
.coverage.literal { border-color: var(--warning); color: var(--warning-text); }
.coverage.mixed { border-color: var(--input); color: var(--muted-foreground); }
.component-intro { max-width: 78ch; margin-bottom: 0; color: var(--muted-foreground); font-size: 0.86rem; }
.component-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 6fr); gap: 1.5rem; align-items: start; margin-top: 1.5rem; }
.demo-surface { min-width: 0; padding: 1.5rem; border: 1px solid var(--border); background: var(--card); }
.demo-surface > .spec-label { display: block; margin: 1.5rem 0 0.6rem; }
.demo-surface > .spec-label:first-child { margin-top: 0; }
.demo-surface > .annotation { margin-top: 1rem; }
.demo-group { margin-top: 1.5rem; }
.demo-group:first-child { margin-top: 0; }
.demo-group > .spec-label { display: block; margin: 0 0 0.55rem; }
.sample-row { display: flex; flex-wrap: wrap; gap: 0.6rem; align-items: center; margin: 0; }
.props { min-width: 0; }
.props-scroll { overflow-x: auto; border: 1px solid var(--border); background: var(--card); }
.props-table { width: 100%; min-width: 600px; margin: 0; border-collapse: collapse; text-align: left; font-size: 0.74rem; }
.props-table th { padding: 0.6rem 0.9rem; border-bottom: 1px solid var(--input); background: var(--popover); color: var(--foreground); font-family: var(--carbon-font-mono); font-size: 0.6rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; white-space: nowrap; }
.props-table th:nth-child(1) { width: 148px; }
.props-table th:nth-child(3) { width: 132px; }
.props-table td { padding: 0.55rem 0.9rem; border-bottom: 1px solid var(--border); vertical-align: top; color: var(--muted-foreground); }
.props-table tbody tr:last-child td { border-bottom: 0; }
.props-table td:first-child { color: var(--foreground); white-space: nowrap; }
.props-table td code { color: var(--foreground); font-size: 0.72rem; overflow-wrap: break-word; }
.notes { margin: 1.5rem 0 0; padding-left: 1.1rem; color: var(--muted-foreground); font-size: 0.8rem; }
.notes li { max-width: 100ch; margin-bottom: 0.5rem; }
.notes li::marker { color: var(--primary); }
.notes code { color: var(--foreground); }

/* Component demos ---------------------------------------------------------- */
.ph-demo { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem; padding-bottom: 1rem; border-bottom: 1px solid var(--border); }
.ph-main { min-width: 0; }
.ph-title-row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; }
.ph-demo h4 { margin: 0; font-size: 1.5rem; font-weight: 300; letter-spacing: -0.025em; }
.ph-demo p { margin: 0.3rem 0 0; color: #8d8d8d; font-size: 0.75rem; }
.ph-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.tile-demo { max-width: 340px; padding: 1rem; border: 1px solid var(--border); background: var(--card); }
.tile-head { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted-foreground); }
.tile-dot { width: 16px; height: 16px; flex: none; border: 1px solid var(--border); border-radius: 50%; }
.tile-value { margin-top: 0.75rem; font-size: 2rem; font-weight: 600; line-height: 1; font-variant-numeric: tabular-nums; }
.tile-foot { display: flex; justify-content: space-between; gap: 0.5rem; margin-top: 0.75rem; padding-top: 0.75rem; border-top: 1px solid var(--border); font-size: 0.7rem; color: var(--muted-foreground); }
.tile-live { display: inline-flex; align-items: center; gap: 0.4rem; color: var(--success-text); }
.tile-live i { width: 6px; height: 6px; background: var(--success); }

.tag { display: inline-flex; height: 24px; align-items: center; gap: 0.25rem; padding: 0 0.5rem; border: 1px solid currentColor; font-family: var(--carbon-font-mono); font-size: 0.65rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; white-space: nowrap; }
.tag.good { background: var(--tag-green-bg); color: var(--tag-green-text); border-color: color-mix(in srgb, currentColor 30%, transparent); }
.tag.neutral { background: var(--tag-gray-bg); color: var(--tag-gray-text); border-color: color-mix(in srgb, currentColor 30%, transparent); }
.tag.bad { background: var(--tag-red-bg); color: var(--tag-red-text); border-color: color-mix(in srgb, currentColor 30%, transparent); }
.tag.warning { background: var(--tag-yellow-bg); color: var(--tag-yellow-text); border-color: color-mix(in srgb, currentColor 30%, transparent); }
.tag.blue { background: var(--tag-blue-bg); color: var(--tag-blue-text); border-color: color-mix(in srgb, currentColor 30%, transparent); }
.tag.purple { background: var(--tag-purple-bg); color: var(--tag-purple-text); border-color: color-mix(in srgb, currentColor 30%, transparent); }
.tag.cyan { background: var(--tag-cyan-bg); color: var(--tag-cyan-text); border-color: color-mix(in srgb, currentColor 30%, transparent); }
.tag.teal { background: var(--tag-teal-bg); color: var(--tag-teal-text); border-color: color-mix(in srgb, currentColor 30%, transparent); }
.tag.magenta { background: var(--tag-magenta-bg); color: var(--tag-magenta-text); border-color: color-mix(in srgb, currentColor 30%, transparent); }
.tag.warm { background: var(--tag-warm-gray-bg); color: var(--tag-warm-gray-text); border-color: color-mix(in srgb, currentColor 30%, transparent); }
.tag.cool { background: var(--tag-cool-gray-bg); color: var(--tag-cool-gray-text); border-color: color-mix(in srgb, currentColor 30%, transparent); }
.tag.tag-sm { height: 20px; padding: 0 0.375rem; font-size: 0.6rem; }
.tag.pulse { animation: var(--carbon-animation-pulse); }
.tag.filter button { border: 0; background: transparent; color: inherit; cursor: pointer; font: inherit; line-height: 1; }
.tag.filter button:hover { opacity: 0.75; }

.table-demo { overflow-x: auto; border: 1px solid var(--border); background: #161616; font-size: 0.78rem; }
.table-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.75rem; border-bottom: 1px solid #393939; background: #262626; }
.table-head strong { display: block; color: #f4f4f4; font-size: 0.68rem; letter-spacing: 0.08em; }
.table-head span { color: #8d8d8d; font-size: 0.65rem; }
.table-tool { flex: none; padding: 0.2rem 0.5rem; border: 1px solid #525252; color: #c6c6c6; font-family: var(--carbon-font-mono); font-size: 0.6rem; text-transform: uppercase; }
.table-demo table { width: 100%; border-collapse: collapse; text-align: left; }
.table-demo th { padding: 0.5rem 0.75rem; border-bottom: 1px solid #525252; background: #393939; color: #f4f4f4; font-size: 0.68rem; font-weight: 600; white-space: nowrap; }
.table-demo td { padding: 0.55rem 0.75rem; border-bottom: 1px solid #393939; background: #262626; color: #f4f4f4; overflow-wrap: anywhere; }
.table-demo tr:last-child td { border-bottom: 0; }

.modal-demo { max-width: 400px; margin: 0 auto; border: 1px solid #393939; background: #161616; box-shadow: var(--carbon-shadow-overlay); }
.modal-demo-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; padding: 1rem; border-bottom: 1px solid #393939; background: #262626; }
.modal-demo-eyebrow { display: block; color: #c6c6c6; font-size: 0.65rem; }
.modal-demo-head strong { display: block; margin-top: 0.25rem; color: #f4f4f4; font-size: 1.05rem; }
.modal-demo-close { color: #c6c6c6; font-size: 1.1rem; line-height: 1; }
.modal-demo-body { padding: 1rem; color: #f4f4f4; font-size: 0.78rem; }
.modal-demo-foot { display: flex; }
.modal-btn { display: inline-flex; min-height: 40px; flex: 1; align-items: center; justify-content: center; border: 1px solid transparent; background: #393939; color: #f4f4f4; font-size: 0.75rem; }
.modal-btn.fill-danger { background: var(--destructive); color: #ffffff; }

.confirm-demo { max-width: 400px; margin: 0 auto; padding: 1rem; border: 1px solid #393939; background: #161616; }
.confirm-row { display: flex; gap: 0.75rem; align-items: flex-start; }
.confirm-icon { color: #ff8389; font-size: 0.9rem; line-height: 1.4; }
.confirm-demo strong { display: block; color: #f4f4f4; font-size: 0.9rem; }
.confirm-demo p { margin: 0.2rem 0 0; color: #a8a8a8; font-size: 0.72rem; font-family: var(--carbon-font-mono); }
.confirm-actions { display: flex; justify-content: flex-end; gap: 0.5rem; margin-top: 1rem; }

.field-demo { display: flex; max-width: 360px; flex-direction: column; gap: 0.25rem; margin-top: 1.25rem; }
.field-demo:first-of-type { margin-top: 0; }
.demo-surface > .field-demo { margin-top: 1.25rem; }
.demo-surface > .spec-label + .field-demo { margin-top: 0; }
.field-demo label { color: var(--foreground); font-size: 0.72rem; letter-spacing: 0.32px; }
.field-demo input, .field-demo select { height: var(--carbon-control-md); width: 100%; padding: 0 1rem; border: 0; border-bottom: 1px solid var(--input); border-radius: 0; background: var(--card); color: var(--foreground); font-size: 0.82rem; }
.field-demo select { cursor: pointer; appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23a8a8a8'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z' clip-rule='evenodd'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 0.9rem center; background-size: 16px; }
.field-demo input:focus, .field-demo select:focus { outline: 0; border-bottom: 2px solid var(--ring); background: var(--accent); }
.field-demo [aria-invalid='true'] { border-bottom: 2px solid var(--destructive); }
.field-demo small { color: var(--muted-foreground); font-size: 0.7rem; }
.field-demo small.error { color: var(--destructive-text); }

.tabs-demo { display: flex; border-bottom: 1px solid #393939; background: #161616; overflow-x: auto; }
.tab-demo { padding: 0.65rem 0.85rem; border-bottom: 2px solid transparent; margin-bottom: -1px; color: #a8a8a8; font-size: 0.8rem; white-space: nowrap; }
.tab-demo.active { position: relative; z-index: 1; background: #262626; color: #f4f4f4; font-weight: 600; border-bottom-color: #0f62fe; }

.loading-demo { display: grid; gap: 1rem; }
.inline-loading { display: inline-flex; align-items: center; gap: 0.5rem; color: var(--muted-foreground); font-size: 0.78rem; }
.inline-loading .spinner { width: 14px; height: 14px; color: var(--primary); }
.inline-loading .check { color: var(--success-text); font-size: 1rem; line-height: 1; }
.inline-loading .cross { color: var(--destructive-text); font-size: 1rem; line-height: 1; }

.crumbs-demo { display: flex; flex-wrap: wrap; align-items: center; gap: 0.3rem; color: #a8a8a8; font-size: 0.75rem; }
.crumbs-demo a { text-decoration: none; }
.crumbs-demo a:hover { color: var(--foreground); text-decoration: underline; }
.crumbs-demo .current { color: #f4f4f4; font-weight: 500; }

.shell-demo { border: 1px solid var(--border); background: var(--background); }
.shell-top { height: 24px; border-bottom: 1px solid var(--border); background: var(--card); }
.shell-body { display: flex; min-height: 150px; }
.shell-side { width: 56px; flex: none; border-right: 1px solid var(--border); background: var(--card); }
.shell-main { display: flex; flex: 1; flex-direction: column; gap: 8px; min-width: 0; padding: 12px; }
.shell-block { height: 34px; border: 1px solid var(--border); background: var(--card); }
.shell-block.short { height: 20px; width: 40%; }

.search-demo { position: relative; margin: 0; }
.search-demo input { width: 100%; height: var(--carbon-control-md); padding: 0 2.25rem 0 2.5rem; border: 0; border-bottom: 1px solid #8d8d8d; border-radius: 0; background: #262626; color: #f4f4f4; font-size: 0.8rem; }
.search-demo input::placeholder { color: #6f6f6f; }
.search-icon { position: absolute; top: 50%; left: 0.75rem; transform: translateY(-50%); color: #8d8d8d; font-size: 1rem; }
.search-clear { position: absolute; top: 50%; right: 0.75rem; transform: translateY(-50%); color: #a8a8a8; font-size: 1rem; }
.search-demo.sm input { height: var(--carbon-control-sm); font-size: 0.72rem; }
.search-demo.lg input { height: var(--carbon-control-lg); font-size: 0.9rem; }

.accordion-demo { border-top: 1px solid #393939; }
.accordion-item { display: flex; height: 48px; align-items: center; justify-content: space-between; gap: 1rem; padding: 0 1rem; border-bottom: 1px solid #393939; color: #f4f4f4; font-size: 0.82rem; font-weight: 500; }
.chev { color: #c6c6c6; transition: transform var(--motion-base) var(--ease-out-quart); }
.chev.open { transform: rotate(90deg); }
.accordion-panel { padding: 0.85rem 1rem; border-bottom: 1px solid #393939; background: color-mix(in srgb, #262626 40%, transparent); color: #c6c6c6; font-size: 0.78rem; }

.structured-demo { overflow-x: auto; border-top: 1px solid #393939; background: #161616; font-size: 0.78rem; }
.structured-head { display: grid; grid-template-columns: 1fr 1.4fr; gap: 1rem; padding: 0.6rem 1rem; border-bottom: 1px solid #525252; background: #393939; color: #f4f4f4; font-size: 0.65rem; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; }
.structured-row { display: grid; grid-template-columns: 1fr 1.4fr; gap: 1rem; padding: 0.65rem 1rem; border-bottom: 1px solid #393939; background: #262626; color: #f4f4f4; }
.structured-row:last-child { border-bottom: 0; }

.state-demo { display: flex; flex-direction: column; align-items: center; gap: 0.6rem; padding: 1.75rem 1rem; border: 1px solid #393939; background: #262626; text-align: center; }
.state-demo strong { color: #f4f4f4; font-size: 0.82rem; }
.state-demo p { max-width: 300px; margin: 0; color: #a8a8a8; font-size: 0.72rem; }
.state-icon { display: grid; width: 40px; height: 40px; place-items: center; border: 1px solid #393939; background: #161616; color: #8d8d8d; }
.state-demo.error .state-icon { border-color: color-mix(in srgb, #da1e28 40%, transparent); background: color-mix(in srgb, #da1e28 10%, transparent); color: #ff8389; }

/* Composition, patterns, accessibility ------------------------------------- */
.rule-grid article, .principle-grid article { padding: 1.5rem; border: 1px solid var(--border); background: var(--card); }
.rule-grid article > span, .principle-grid article > span { color: var(--primary-text); font-family: var(--carbon-font-mono); font-size: 0.7rem; }
.rule-grid h3, .principle-grid h3 { margin: 2.25rem 0 0.55rem; font-size: 0.95rem; }
.rule-grid p, .principle-grid p { max-width: 340px; margin-bottom: 0; color: var(--muted-foreground); font-size: 0.78rem; }
.access-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; margin-bottom: 1.5rem; border: 1px solid var(--border); background: var(--border); }
.access-grid p { display: flex; min-width: 0; flex-direction: column; gap: 0.5rem; margin: 0; padding: 1.5rem; background: var(--card); }
.access-grid strong { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 500; }
.access-grid span { color: var(--muted-foreground); font-size: 0.75rem; }
.access-list { display: grid; gap: 1px; border: 1px solid var(--border); background: var(--border); }
.access-list > div { padding: 1.25rem 1.4rem; background: var(--card); }
.access-list p { max-width: 90ch; margin: 0.5rem 0 0; color: var(--muted-foreground); font-size: 0.8rem; }

/* Workflow ----------------------------------------------------------------- */
.steps { display: grid; gap: 1px; margin: 0 0 1.5rem; padding: 0; border: 1px solid var(--border); background: var(--border); list-style: none; counter-reset: step; }
.steps li { display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 0.5rem; padding: 1.25rem 1.4rem; background: var(--card); counter-increment: step; }
.steps li::before { color: var(--primary-text); font-family: var(--carbon-font-mono); font-size: 0.72rem; content: counter(step, decimal-leading-zero); }
.steps strong { display: block; font-size: 0.9rem; }
.steps p { max-width: 82ch; margin: 0.4rem 0 0; color: var(--muted-foreground); font-size: 0.8rem; }
.closing { padding-bottom: 4rem; }
.closing .hero-actions { margin-top: 2rem; }
footer { display: flex; max-width: 1120px; justify-content: space-between; gap: 1rem; margin: 0 auto; padding: 2rem 0; border-top: 1px solid var(--border); color: var(--muted-foreground); font-family: var(--carbon-font-mono); font-size: 0.65rem; }

@media (max-width: 1100px) {
	.component-grid { grid-template-columns: 1fr; }
	.type-grid { grid-template-columns: 1fr 1fr; }
	.type-grid > .type-specimen:last-child { grid-column: 1 / -1; }
	.spec-grid, .rule-grid, .principle-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
	.chart-ramp { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (max-width: 800px) {
	.topbar { padding: 0 1.5rem; }
	.mobile-nav { display: block; padding: 0.7rem 1.5rem; border-bottom: 1px solid var(--border); background: var(--card); }
	.mobile-nav summary { cursor: pointer; font-size: 0.8rem; }
	.mobile-nav nav { display: flex; flex-wrap: wrap; gap: 0.5rem 1rem; padding-top: 0.8rem; }
	.mobile-nav a { color: var(--primary-text); font-size: 0.8rem; }
	.layout { display: block; }
	.sidebar { display: none; }
	main { padding: 0 1.5rem; }
	.section-heading { grid-template-columns: 1fr; gap: 0.75rem; }
	.source-list > div { grid-template-columns: 1fr; }
	.section { padding: 3.5rem 0; }
}
@media (max-width: 620px) {
	.wordmark-sub { display: none; }
	.hero { padding-top: 3rem; }
	.hero-meta { margin-top: 2.5rem; }
	.demo-surface { padding: 1rem; }
	.component-grid { gap: 1rem; }
	.component { margin-top: 2.25rem; padding-top: 1.75rem; }
	.type-grid, .space-grid, .motion-grid, .elevation-grid, .principle-grid, .rule-grid, .spec-grid, .access-grid, .chart-ramp { grid-template-columns: 1fr; }
	.type-grid > .type-specimen:last-child { grid-column: auto; }
	.control-scale > div { grid-template-columns: 20px 1fr; }
	.control-scale > div > span:last-child { grid-column: 2; }
	footer { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
	*, *::before, *::after { scroll-behavior: auto !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
	.button:active:not(:disabled) { transform: none; }
}