/* ============================================================
   SmartData Solutions — Web Design System
   Documentation styles
   ============================================================ */

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--sds-plum);
  color: var(--sds-bone);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---------- Layout shell ---------- */
.ds-shell {
  display: grid;
  grid-template-columns: 268px 1fr;
  min-height: 100vh;
}

.ds-side {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  background: var(--sds-plum-ink);
  border-right: 1px solid rgba(208,151,231,0.15);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  overflow-y: auto;
}
.ds-side::-webkit-scrollbar { width: 6px; }
.ds-side::-webkit-scrollbar-thumb { background: rgba(208,151,231,0.18); border-radius: 3px; }

.ds-brand {
  display: flex; align-items: center; gap: 12px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(208,151,231,0.15);
}
.ds-brand img { height: 28px; }
.ds-brand .meta { font-size: 11px; letter-spacing: 0.14em; color: rgba(250,249,243,0.55); text-transform: uppercase; }

.ds-toc { display: flex; flex-direction: column; gap: 2px; }
.ds-toc .group {
  font-size: 10px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--sds-coral); padding: 14px 12px 6px;
}
.ds-toc a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: 4px;
  color: rgba(250,249,243,0.78); font-size: 13.5px; font-weight: 500;
  text-decoration: none; border-bottom: none;
  transition: background 160ms var(--ease-out-soft), color 160ms;
}
.ds-toc a:hover { background: rgba(208,151,231,0.08); color: var(--sds-bone); }
.ds-toc a .num {
  font-family: var(--font-mono); font-size: 10px;
  color: rgba(250,249,243,0.4); width: 22px;
}
.ds-toc .ver {
  margin-top: auto; padding-top: 24px;
  border-top: 1px solid rgba(208,151,231,0.15);
  font-size: 11px; color: rgba(250,249,243,0.42); line-height: 1.5;
}

/* ---------- Main column ---------- */
.ds-main { padding: 80px 80px 160px; max-width: 1180px; }

.ds-eyebrow {
  font-size: 11px; font-weight: 600; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--sds-coral);
  display: inline-flex; align-items: center; gap: 12px;
  margin-bottom: 20px;
}
.ds-eyebrow::before {
  content: ''; width: 8px; height: 8px; background: var(--sds-coral);
}
.ds-eyebrow.lav { color: var(--sds-lavender); }
.ds-eyebrow.lav::before { background: var(--sds-lavender); }

.ds-h-section {
  font-size: 64px; font-weight: 700; letter-spacing: -0.025em;
  line-height: 0.95; margin: 0 0 20px;
}
.ds-h-section .accent { color: var(--sds-lavender); }
.ds-h-section .coral { color: var(--sds-coral); }

.ds-lede {
  font-size: 19px; line-height: 1.5; color: rgba(250,249,243,0.72);
  max-width: 720px; margin: 0 0 56px;
}

.ds-section { padding: 96px 0; border-top: 1px solid rgba(208,151,231,0.12); }
.ds-section:first-of-type { padding-top: 0; border-top: none; }

.ds-h3 {
  font-size: 22px; font-weight: 600; letter-spacing: -0.01em;
  margin: 0 0 8px;
}
.ds-h4 {
  font-size: 14px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: rgba(250,249,243,0.6);
  margin: 0 0 16px;
}
.ds-body { font-size: 15px; line-height: 1.6; color: rgba(250,249,243,0.72); margin: 0 0 24px; }

/* ---------- Tile / panel ---------- */
.tile {
  border: 1px solid rgba(208,151,231,0.18);
  background: rgba(208,151,231,0.04);
  border-radius: 6px;
  padding: 28px;
}
.tile.flat { background: transparent; }
.tile.bone {
  background: var(--sds-bone); color: var(--sds-plum);
  border-color: rgba(50,32,69,0.08);
}
.tile.sage {
  background: var(--sds-sage); color: var(--sds-plum);
  border-color: rgba(50,32,69,0.08);
}

.row { display: grid; gap: 24px; }
.row.cols-2 { grid-template-columns: 1fr 1fr; }
.row.cols-3 { grid-template-columns: repeat(3, 1fr); }
.row.cols-4 { grid-template-columns: repeat(4, 1fr); }
.row.cols-5 { grid-template-columns: repeat(5, 1fr); }
.row.cols-6 { grid-template-columns: repeat(6, 1fr); }

/* ---------- Token table ---------- */
.token-table {
  width: 100%; border-collapse: collapse;
  font-family: var(--font-mono); font-size: 13px;
}
.token-table th, .token-table td {
  text-align: left; padding: 14px 16px;
  border-bottom: 1px solid rgba(208,151,231,0.10);
  vertical-align: middle;
}
.token-table th {
  font-family: var(--font-sans); font-size: 11px; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(250,249,243,0.55);
  border-bottom: 1px solid rgba(208,151,231,0.22);
}
.token-table td.name { color: var(--sds-lavender); }
.token-table td.val { color: rgba(250,249,243,0.86); }
.token-table td.usage { font-family: var(--font-sans); color: rgba(250,249,243,0.6); font-size: 13px; }

/* ---------- Swatches ---------- */
.swatch {
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid rgba(208,151,231,0.12);
  display: flex; flex-direction: column;
  position: relative;
}
.swatch .chip {
  height: 160px;
  position: relative;
  display: flex; align-items: flex-end; padding: 14px;
}
.swatch .chip .hex {
  font-family: var(--font-mono); font-size: 11px;
  background: rgba(0,0,0,0.4); color: #fff;
  padding: 3px 8px; border-radius: 3px;
  letter-spacing: 0.04em;
}
.swatch .chip.light .hex { background: rgba(255,255,255,0.7); color: var(--sds-plum); }
.swatch .meta {
  padding: 14px 16px;
  background: rgba(0,0,0,0.18);
  display: flex; flex-direction: column; gap: 4px;
}
.swatch .meta .name { font-size: 14px; font-weight: 600; color: var(--sds-bone); }
.swatch .meta .var { font-family: var(--font-mono); font-size: 11px; color: rgba(250,249,243,0.55); }

.mini-swatch {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 14px;
  border: 1px solid rgba(208,151,231,0.14);
  border-radius: 6px;
}
.mini-swatch .square {
  width: 40px; height: 40px; border-radius: 4px;
  border: 1px solid rgba(0,0,0,0.10);
}
.mini-swatch .info { display: flex; flex-direction: column; gap: 2px; line-height: 1.2; }
.mini-swatch .info .label { font-size: 13px; font-weight: 600; color: var(--sds-bone); }
.mini-swatch .info .var { font-family: var(--font-mono); font-size: 11px; color: rgba(250,249,243,0.55); }

/* ---------- Type specimens ---------- */
.type-spec {
  display: grid; grid-template-columns: 220px 1fr; gap: 32px;
  padding: 32px 0;
  border-bottom: 1px solid rgba(208,151,231,0.10);
  align-items: baseline;
}
.type-spec:last-child { border-bottom: none; }
.type-spec .label { display: flex; flex-direction: column; gap: 6px; }
.type-spec .label .role { font-size: 13px; font-weight: 600; color: var(--sds-bone); }
.type-spec .label .meta { font-family: var(--font-mono); font-size: 11px; color: rgba(250,249,243,0.5); }
.type-spec .demo { color: var(--sds-bone); }

.display { font-size: 128px; font-weight: 700; line-height: 1.0; letter-spacing: -0.03em; }
.h1 { font-size: 72px; font-weight: 700; line-height: 1.0; letter-spacing: -0.025em; }
.h2 { font-size: 48px; font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; }
.h3 { font-size: 32px; font-weight: 600; line-height: 1.15; letter-spacing: -0.01em; }
.h4 { font-size: 24px; font-weight: 600; line-height: 1.2; }
.h5 { font-size: 18px; font-weight: 500; line-height: 1.4; }
.bodylg { font-size: 20px; line-height: 1.4; color: rgba(250,249,243,0.78); font-weight: 400; }
.body { font-size: 16px; line-height: 1.5; color: rgba(250,249,243,0.78); }
.small { font-size: 14px; line-height: 1.4; color: rgba(250,249,243,0.62); }
.eyebrow-spec { font-size: 12px; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(250,249,243,0.6); }
.mono { font-family: var(--font-mono); font-size: 14px; color: rgba(250,249,243,0.7); }

/* ---------- Font weight grid ---------- */
.weight-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.weight-cell {
  border: 1px solid rgba(208,151,231,0.14);
  border-radius: 6px;
  padding: 20px;
}
.weight-cell .glyph {
  font-size: 56px; line-height: 1; color: var(--sds-bone);
  margin-bottom: 16px;
}
.weight-cell .name { font-size: 13px; font-weight: 600; color: var(--sds-bone); }
.weight-cell .num { font-family: var(--font-mono); font-size: 11px; color: rgba(250,249,243,0.5); margin-top: 2px; }

/* ---------- Spacing ---------- */
.space-row {
  display: grid; grid-template-columns: 80px 80px 1fr;
  align-items: center; gap: 24px;
  padding: 10px 0;
}
.space-row .name { font-family: var(--font-mono); font-size: 12px; color: var(--sds-lavender); }
.space-row .val { font-family: var(--font-mono); font-size: 12px; color: rgba(250,249,243,0.6); }
.space-row .bar { height: 16px; background: var(--sds-coral); border-radius: 2px; }

/* ---------- Radius ---------- */
.radius-cell {
  border: 1px solid rgba(208,151,231,0.14);
  background: rgba(208,151,231,0.05);
  padding: 24px;
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.radius-cell .demo {
  width: 96px; height: 96px;
  background: var(--sds-lavender);
}
.radius-cell .label { text-align: center; }
.radius-cell .label .name { font-family: var(--font-mono); font-size: 12px; color: var(--sds-bone); }
.radius-cell .label .val { font-family: var(--font-mono); font-size: 11px; color: rgba(250,249,243,0.55); margin-top: 2px; }

/* ---------- Shadow ---------- */
.shadow-cell {
  background: var(--sds-bone);
  border-radius: 6px;
  padding: 32px;
  display: flex; align-items: center; justify-content: center;
  min-height: 200px;
}
.shadow-cell .box {
  width: 140px; height: 100px;
  background: #fff; border-radius: 6px;
}
.shadow-card { border: 1px solid rgba(208,151,231,0.14); border-radius: 6px; overflow: hidden; }
.shadow-card .meta { padding: 14px 16px; background: rgba(0,0,0,0.18); }
.shadow-card .meta .name { font-size: 13px; font-weight: 600; color: var(--sds-bone); }
.shadow-card .meta .var { font-family: var(--font-mono); font-size: 11px; color: rgba(250,249,243,0.55); margin-top: 2px; }

/* ---------- Motion ---------- */
.motion-row {
  display: grid; grid-template-columns: 220px 1fr 160px;
  align-items: center; gap: 24px;
  padding: 16px 0;
  border-bottom: 1px solid rgba(208,151,231,0.10);
}
.motion-row:last-child { border-bottom: none; }
.motion-row .name { font-family: var(--font-mono); font-size: 13px; color: var(--sds-lavender); }
.motion-row .track {
  position: relative; height: 4px; background: rgba(208,151,231,0.15); border-radius: 2px;
}
.motion-row .dot {
  position: absolute; top: -6px; width: 16px; height: 16px; border-radius: 999px;
  background: var(--sds-coral);
  animation: motion-loop 2.2s infinite;
}
.motion-row .val { font-family: var(--font-mono); font-size: 12px; color: rgba(250,249,243,0.6); text-align: right; }
@keyframes motion-loop {
  0%, 100% { left: 0; }
  50% { left: calc(100% - 16px); }
}

/* ---------- Button demos ---------- */
.demo-stage {
  padding: 40px;
  background: rgba(208,151,231,0.04);
  border: 1px solid rgba(208,151,231,0.12);
  border-radius: 6px;
  display: flex; flex-wrap: wrap; gap: 16px; align-items: center;
}
.demo-stage.light {
  background: var(--sds-sage); border-color: rgba(50,32,69,0.08);
}
.demo-stage.bone {
  background: var(--sds-bone); border-color: rgba(50,32,69,0.06);
}
.demo-stage.plum-ink {
  background: var(--sds-plum-ink); border-color: rgba(208,151,231,0.15);
}
.demo-caption {
  font-family: var(--font-mono); font-size: 11px;
  color: rgba(250,249,243,0.5); margin-top: 10px;
}

/* Buttons */
.btn {
  font-family: var(--font-sans); font-weight: 600; font-size: 15px;
  letter-spacing: -0.005em; padding: 14px 22px; border-radius: 6px;
  border: none; cursor: pointer; display: inline-flex; align-items: center; gap: 10px;
  transition: all 180ms var(--ease-out-soft);
}
.btn-primary { background: var(--sds-coral); color: var(--sds-bone); }
.btn-primary:hover { background: var(--sds-coral-hi); transform: translateY(-1px); }
.btn-outline-light { background: transparent; color: var(--sds-bone); border: 1.5px solid rgba(250,249,243,0.4); }
.btn-outline-light:hover { border-color: var(--sds-bone); background: rgba(250,249,243,0.05); }
.btn-outline-plum { background: transparent; color: var(--sds-plum); border: 1.5px solid var(--sds-plum); }
.btn-outline-plum:hover { background: var(--sds-plum); color: var(--sds-sage); }
.btn-lavender { background: var(--sds-lavender); color: var(--sds-plum); }
.btn-lavender:hover { background: #BB7BD4; }
.btn-ghost {
  background: transparent; color: var(--sds-bone);
  border: 1.5px solid transparent;
}
.btn-ghost:hover { background: rgba(250,249,243,0.06); }

/* Split CTA */
.btn-cta {
  display: inline-flex; align-items: stretch; border-radius: 6px; overflow: hidden;
  cursor: pointer; border: none; background: var(--sds-coral); color: var(--sds-bone);
  font-family: var(--font-sans); font-weight: 600; font-size: 15px;
  transition: all 180ms var(--ease-out-soft);
}
.btn-cta .label { padding: 14px 22px; display: flex; align-items: center; }
.btn-cta .arrow {
  width: 50px; display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.12);
  transition: all 180ms var(--ease-out-soft);
}
.btn-cta:hover { background: var(--sds-coral-hi); }
.btn-cta:hover .arrow svg { transform: translateX(3px); }
.btn-cta .arrow svg { transition: transform 180ms var(--ease-out-soft); }
.btn-cta-lav { background: var(--sds-lavender); color: var(--sds-plum); }
.btn-cta-lav .arrow { background: rgba(50,32,69,0.12); }
.btn-cta-bone { background: var(--sds-bone); color: var(--sds-plum); }
.btn-cta-bone .arrow { background: rgba(50,32,69,0.08); }

/* link arrow */
.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--sds-lavender);
  text-decoration: none; cursor: pointer;
}
.link-arrow svg { transition: transform 180ms var(--ease-out-soft); }
.link-arrow:hover svg { transform: translateX(3px); }

/* ---------- Tag / chip ---------- */
.tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: 999px;
  font-size: 12px; font-weight: 500;
  border: 1px solid rgba(208,151,231,0.3);
  color: rgba(250,249,243,0.86);
}
.tag .dot { width: 6px; height: 6px; border-radius: 999px; background: var(--sds-coral); }
.tag.coral { border-color: var(--sds-coral); color: var(--sds-coral); }
.tag.lav { border-color: var(--sds-lavender); color: var(--sds-lavender); }
.tag.sage-on-plum { border-color: rgba(231,236,228,0.45); color: var(--sds-sage); }
.tag.solid-coral { background: var(--sds-coral); border-color: var(--sds-coral); color: var(--sds-bone); }
.tag.solid-lav { background: var(--sds-lavender); border-color: var(--sds-lavender); color: var(--sds-plum); }

/* ---------- Form ---------- */
.field-stack { display: flex; flex-direction: column; gap: 8px; }
.field-label { font-size: 12px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: rgba(250,249,243,0.6); }
.field {
  background: rgba(250,249,243,0.04);
  border: 1px solid rgba(208,151,231,0.25);
  border-radius: 6px;
  padding: 14px 16px;
  color: var(--sds-bone);
  font-family: inherit; font-size: 15px;
  outline: none;
  transition: border-color 180ms var(--ease-out-soft);
  width: 100%;
}
.field:focus { border-color: var(--sds-lavender); }
.field::placeholder { color: rgba(250,249,243,0.4); }
.field-row { display: flex; background: rgba(250,249,243,0.05); border: 1px solid rgba(208,151,231,0.3); border-radius: 6px; padding: 6px; }
.field-row .field { background: transparent; border: none; padding: 10px 14px; }

/* ---------- Patterns ---------- */
.pattern-cell {
  height: 200px;
  border: 1px solid rgba(208,151,231,0.14);
  border-radius: 6px;
  position: relative;
  overflow: hidden;
}
.pattern-cell.dots {
  background-color: var(--sds-plum);
  background-image: radial-gradient(circle, rgba(208,151,231,0.35) 1.5px, transparent 1.5px);
  background-size: 24px 24px;
}
.pattern-cell.dots-fade {
  background-color: var(--sds-plum);
  background-image: radial-gradient(circle, rgba(208,151,231,0.35) 1.5px, transparent 1.5px);
  background-size: 24px 24px;
  mask-image: radial-gradient(ellipse at 50% 50%, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 50%, black 0%, transparent 70%);
}
.pattern-cell.sage-gradient {
  background: linear-gradient(160deg, var(--sds-lavender), var(--sds-sage) 50%, var(--sds-lavender));
  opacity: 0.55;
}
.pattern-cell.coral-glow {
  background: var(--sds-plum-ink);
}
.pattern-cell.coral-glow::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(254,110,78,0.30) 0%, transparent 55%),
              radial-gradient(circle at 20% 70%, rgba(208,151,231,0.22) 0%, transparent 55%);
}
.pattern-cell.diamond-network {
  background: var(--sds-bone);
}
.pattern-caption {
  position: absolute; left: 14px; bottom: 12px;
  font-family: var(--font-mono); font-size: 11px;
  background: rgba(0,0,0,0.4); color: #fff;
  padding: 3px 8px; border-radius: 3px;
}
.pattern-caption.dark { background: rgba(255,255,255,0.78); color: var(--sds-plum); }

/* ---------- Card examples ---------- */
.card-eg {
  border: 1px solid rgba(208,151,231,0.22);
  border-radius: 6px;
  padding: 28px;
  background: rgba(208,151,231,0.04);
  display: flex; flex-direction: column;
  min-height: 220px;
}
.card-eg .eyebrow-spec { margin-bottom: 14px; }
.card-eg .title { font-size: 19px; font-weight: 600; line-height: 1.25; letter-spacing: -0.005em; color: var(--sds-bone); margin: 0 0 24px; flex: 1; }

.tile-coral {
  background: var(--sds-coral); color: var(--sds-bone);
  padding: 32px; border-radius: 6px;
  display: flex; flex-direction: column; gap: 12px;
}
.tile-coral .label { font-size: 13px; font-weight: 600; }
.tile-coral .title { font-size: 24px; font-weight: 600; letter-spacing: -0.01em; line-height: 1.2; margin: 0; }
.tile-coral .cta-strip {
  margin-top: auto;
  background: rgba(255,255,255,0.95); color: var(--sds-coral);
  padding: 14px 18px; border-radius: 4px;
  display: flex; justify-content: space-between; align-items: center;
  font-weight: 600; font-size: 14px;
}

.tile-lav {
  background: var(--sds-lavender); color: var(--sds-plum);
  padding: 32px; border-radius: 6px;
  display: flex; flex-direction: column; gap: 12px;
  min-height: 200px;
}
.tile-lav .title { font-size: 22px; font-weight: 600; letter-spacing: -0.005em; line-height: 1.25; margin: 0; }

.tile-plum {
  background: var(--sds-plum); color: var(--sds-bone);
  padding: 32px; border-radius: 6px;
  border: 1px solid rgba(208,151,231,0.22);
  display: flex; flex-direction: column; gap: 12px;
  min-height: 200px;
}
.tile-plum .title { font-size: 22px; font-weight: 600; letter-spacing: -0.005em; line-height: 1.25; margin: 0; color: rgba(250,249,243,0.55); }

/* ---------- Voice ---------- */
.voice-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  border: 1px solid rgba(208,151,231,0.14);
  border-radius: 6px;
  overflow: hidden;
}
.voice-row .cell { padding: 24px; }
.voice-row .cell.yes { background: rgba(208,151,231,0.06); border-right: 1px solid rgba(208,151,231,0.14); }
.voice-row .cell.no { background: rgba(196,74,58,0.06); }
.voice-row .header {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  margin-bottom: 12px;
}
.voice-row .header.yes { color: var(--success); }
.voice-row .header.no { color: var(--danger); }
.voice-row p { margin: 0; font-size: 15px; line-height: 1.55; color: rgba(250,249,243,0.86); }

/* ---------- Icon grid ---------- */
.icon-cell {
  border: 1px solid rgba(208,151,231,0.14);
  border-radius: 6px;
  background: rgba(208,151,231,0.04);
  aspect-ratio: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  color: var(--sds-bone);
}
.icon-cell svg { width: 28px; height: 28px; }
.icon-cell .name { font-family: var(--font-mono); font-size: 10px; color: rgba(250,249,243,0.55); }

/* ---------- Logo lockup ---------- */
.logo-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.logo-cell {
  border-radius: 6px;
  padding: 56px 40px;
  display: flex; align-items: center; justify-content: center;
}
.logo-cell.dark { background: var(--sds-plum); border: 1px solid rgba(208,151,231,0.18); }
.logo-cell.light { background: var(--sds-bone); border: 1px solid rgba(50,32,69,0.08); }
.logo-cell img { height: 56px; }

/* ---------- Footer ---------- */
.ds-foot {
  margin-top: 96px; padding-top: 32px;
  border-top: 1px solid rgba(208,151,231,0.12);
  display: flex; justify-content: space-between;
  font-family: var(--font-mono); font-size: 12px;
  color: rgba(250,249,243,0.5);
}

/* ---------- Misc ---------- */
.kicker {
  font-family: var(--font-mono); font-size: 11px;
  color: rgba(250,249,243,0.5);
  letter-spacing: 0.04em;
}

::selection { background: var(--sds-coral); color: var(--sds-bone); }