/* === SIKHO design system === */

:root {
  /* Colors */
  --paper: oklch(0.972 0.012 75);
  --paper-2: oklch(0.945 0.014 75);
  --paper-3: oklch(0.915 0.018 75);
  --ink: oklch(0.20 0.02 30);
  --ink-soft: oklch(0.36 0.02 30);
  --ink-mute: oklch(0.52 0.02 30);
  --rule: oklch(0.86 0.018 60);
  --rule-soft: oklch(0.91 0.014 60);

  --maroon: oklch(0.36 0.11 25);
  --maroon-deep: oklch(0.28 0.10 25);
  --maroon-soft: oklch(0.92 0.04 25);
  --saffron: oklch(0.76 0.16 75);
  --saffron-deep: oklch(0.62 0.16 60);
  --saffron-soft: oklch(0.94 0.06 80);
  --indigo: oklch(0.40 0.13 270);
  --indigo-deep: oklch(0.30 0.13 270);
  --indigo-soft: oklch(0.92 0.03 270);
  --teal: oklch(0.52 0.08 195);

  /* Type */
  --serif: 'Spectral', 'Source Serif Pro', Georgia, serif;
  --gujarati: 'Noto Serif Gujarati', 'Hind Vadodara', serif;
  --sans: 'Inter Tight', 'Helvetica Neue', Helvetica, sans-serif;
  --mono: 'JetBrains Mono', 'IBM Plex Mono', ui-monospace, monospace;

  /* Spacing */
  --pad: 32px;
  --pad-lg: 56px;

  /* Radii */
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 14px;

  --sidebar-w: 268px;
  --max-w: 1180px;
}

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

body {
  font-family: var(--serif);
  background: var(--paper);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.55;
  font-feature-settings: "ss01", "kern";
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

/* === Layout === */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
}

/* === Sidebar === */
.sidebar {
  border-right: 1px solid var(--rule);
  background: var(--paper);
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 28px 22px 20px;
  overflow-y: auto;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 6px;
}
.brand-mark {
  font-family: var(--gujarati);
  font-size: 38px;
  font-weight: 600;
  color: var(--maroon-deep);
  line-height: 1;
  letter-spacing: -0.01em;
}
.brand-name {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.brand-sub {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 28px;
  padding-left: 2px;
}
.nav-group {
  margin-bottom: 22px;
}
.nav-group-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin: 0 0 8px 2px;
}
.nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 8px;
  margin: 0 -8px;
  border-radius: var(--r-sm);
  font-family: var(--serif);
  font-size: 16px;
  color: var(--ink-soft);
  transition: background 0.12s, color 0.12s;
}
.nav-link:hover {
  background: var(--paper-2);
  color: var(--ink);
}
.nav-link.active {
  color: var(--maroon-deep);
  background: var(--maroon-soft);
}
.nav-link .nav-guj {
  font-family: var(--gujarati);
  font-size: 13px;
  color: var(--ink-mute);
  font-weight: 400;
}
.nav-link.active .nav-guj { color: var(--maroon); }

.sidebar-foot {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--rule-soft);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.sidebar-cta {
  display: block;
  padding: 12px 14px;
  border-radius: var(--r-md);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 500;
  text-align: center;
  letter-spacing: 0;
  text-transform: none;
  margin-bottom: 10px;
  transition: background 0.12s;
}
.sidebar-cta:hover { background: var(--maroon-deep); }

/* === Main === */
.main {
  min-width: 0;
  padding: 0;
}
.section {
  padding: 80px var(--pad-lg);
  max-width: var(--max-w);
}
.section.tight { padding: 56px var(--pad-lg); }
.section.wide { max-width: none; padding-left: var(--pad-lg); padding-right: var(--pad-lg); }

/* === Type primitives === */
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--maroon);
  margin-bottom: 22px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--maroon);
  display: inline-block;
}
.h-display {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(48px, 5.4vw, 84px);
  line-height: 1.02;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin: 0;
  text-wrap: balance;
}
.h-display em {
  font-style: italic;
  color: var(--maroon-deep);
}
.h-1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(36px, 3.6vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0;
  text-wrap: balance;
}
.h-2 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin: 0;
}
.h-3 {
  font-family: var(--serif);
  font-weight: 500;
  font-size: 21px;
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0;
}
.lede {
  font-family: var(--serif);
  font-size: 21px;
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: 640px;
  font-weight: 300;
  text-wrap: pretty;
}
.body { font-size: 17px; line-height: 1.6; color: var(--ink-soft); }
.small {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.guj { font-family: var(--gujarati); }

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 22px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.005em;
  transition: transform 0.12s, background 0.12s, border-color 0.12s;
}
.btn:hover { background: var(--maroon-deep); border-color: var(--maroon-deep); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule);
}
.btn-ghost:hover { background: var(--paper-2); border-color: var(--ink); }
.btn-arrow::after {
  content: "→";
  font-family: var(--serif);
  transition: transform 0.15s;
}
.btn:hover .btn-arrow::after,
.btn-arrow:hover::after { transform: translateX(3px); }

/* === Patterns: Bandhani dots, Ajrakh rules === */
.bandhani {
  background-image: radial-gradient(circle, var(--maroon) 0.8px, transparent 1.2px);
  background-size: 14px 14px;
  background-position: 0 0;
}
.bandhani-saffron {
  background-image: radial-gradient(circle, var(--saffron-deep) 0.8px, transparent 1.2px);
  background-size: 14px 14px;
}
.double-rule {
  border-top: 1px solid var(--ink);
  position: relative;
}
.double-rule::before {
  content: "";
  position: absolute;
  top: 3px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--ink);
}
.hr-thin { border: 0; border-top: 1px solid var(--rule); margin: 0; }
.hr-double { border: 0; border-top: 1px solid var(--ink); height: 4px; border-bottom: 1px solid var(--ink); margin: 0; }

/* === Cards === */
.card {
  border: 1px solid var(--rule);
  border-radius: var(--r-md);
  padding: 28px;
  background: var(--paper);
  transition: border-color 0.15s, transform 0.15s;
}
.card.dark {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.card.dark .body { color: oklch(0.78 0.02 30); }
.card.maroon {
  background: var(--maroon-deep);
  color: var(--paper);
  border-color: var(--maroon-deep);
}
.card.saffron {
  background: var(--saffron-soft);
  border-color: oklch(0.85 0.08 75);
}

/* === Page chrome === */
.page-head {
  padding: 64px var(--pad-lg) 40px;
  border-bottom: 1px solid var(--rule);
}
.page-head .eyebrow { margin-bottom: 18px; }
.crumb {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 16px;
}

/* === Footer === */
.footer {
  border-top: 1px solid var(--rule);
  padding: 36px var(--pad-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
  color: var(--ink-mute);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.footer-brand {
  font-family: var(--gujarati);
  font-size: 22px;
  color: var(--maroon-deep);
  text-transform: none;
  letter-spacing: 0;
}
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-links a:hover { color: var(--ink); }

/* === Utility === */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.row { display: flex; gap: 16px; flex-wrap: wrap; }
.row.between { justify-content: space-between; align-items: flex-end; }
.stack-tight > * + * { margin-top: 12px; }
.stack > * + * { margin-top: 18px; }
.stack-loose > * + * { margin-top: 32px; }

@media (max-width: 960px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .app { grid-template-columns: 1fr; }
  .sidebar { position: relative; height: auto; }
  .section { padding: 56px 28px; }
  .page-head { padding: 48px 28px 32px; }
}