/* ==========================================================================
   Churro docs site layout
   ========================================================================== */
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--text); font-family: var(--font-sans); -webkit-font-smoothing: antialiased; }
* { box-sizing: border-box; }
a { color: inherit; }

.app {
  display: grid;
  grid-template-columns: 272px 1fr;
  min-height: 100vh;
}

/* ---- Top bar (spans full width, above sidebar on wide, sticky) ---- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  grid-column: 1 / -1;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 14px 28px;
  height: 64px;
}
.topbar__brand { display: flex; align-items: center; gap: 12px; }
.topbar__logo {
  width: 28px; height: 28px; border-radius: 8px;
  background: var(--indigo-950);
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff;
}
.topbar__logo svg { width: 16px; height: 24px; }
.topbar__name { font-size: 15px; font-weight: 600; letter-spacing: -0.01em; }
.topbar__version {
  font-size: 11px; font-weight: 500;
  padding: 3px 8px; border-radius: 999px;
  background: var(--indigo-50); color: var(--indigo-950);
  letter-spacing: 0;
}
.topbar__right { display: flex; align-items: center; gap: 10px; }
.topbar__search {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 10px; padding-right: 8px;
  border: 1px solid var(--border); border-radius: var(--radius-md);
  background: #fff;
  font-size: 13px; color: var(--text-muted);
  width: 260px;
  cursor: pointer;
}
.topbar__search kbd { margin-left: auto; }

/* ---- App with grid: sidebar + content ---- */
.app { grid-template-rows: 64px 1fr; }

.sidebar {
  position: sticky; top: 64px;
  align-self: start;
  height: calc(100vh - 64px);
  overflow-y: auto;
  border-right: 1px solid var(--border);
  background: #fff;
  padding: 24px 16px 40px 28px;
}
.sidebar__group { margin-bottom: 22px; }
.sidebar__group-title {
  font-size: 11px; font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.08em; text-transform: uppercase;
  padding: 0 10px; margin-bottom: 6px;
}
.sidebar__link {
  display: flex; align-items: center; gap: 10px;
  padding: 7px 10px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--text-subtle);
  cursor: pointer;
  text-decoration: none;
  border: 0; background: transparent;
  width: 100%; text-align: left;
  font-family: var(--font-sans);
}
.sidebar__link:hover { background: var(--neutral-50); color: var(--text); }
.sidebar__link.active { background: var(--indigo-50); color: var(--indigo-950); font-weight: 500; }

.main {
  padding: 40px 56px 96px;
  max-width: 1080px;
  width: 100%;
}

.page__eyebrow {
  font-size: 12px; font-weight: 500; color: var(--orange-600);
  letter-spacing: 0.04em; text-transform: uppercase;
  margin-bottom: 8px;
}
.page__title {
  font-family: var(--font-display);
  font-size: 56px; font-weight: 400; line-height: 1.0;
  letter-spacing: -0.025em; color: var(--text);
  margin: 0 0 16px;
}
.page__lede {
  font-size: 17px; line-height: 1.55; color: var(--text-subtle);
  max-width: 680px;
  margin: 0 0 40px;
}

.section { margin-top: 56px; }
.section__head { margin-bottom: 20px; }
.section__title {
  font-size: 22px; font-weight: 600; letter-spacing: -0.01em;
  color: var(--text); margin: 0 0 6px;
}
.section__sub { font-size: 14px; color: var(--text-muted); margin: 0; max-width: 640px; line-height: 1.55; }

.demo {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
}
.demo__stage {
  padding: 32px;
  display: flex; flex-wrap: wrap; align-items: center; gap: 16px;
  background: repeating-linear-gradient(45deg, #fcfcfc, #fcfcfc 10px, #fafafa 10px, #fafafa 20px);
  min-height: 120px;
}
.demo__stage--col { flex-direction: column; align-items: stretch; }
.demo__stage--plain { background: #fff; }
.demo__stage--dark { background: var(--neutral-900); }
.demo__label {
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  background: var(--neutral-50);
  font-family: var(--font-mono); font-size: 12px; color: var(--text-muted);
  display: flex; justify-content: space-between; align-items: center;
}

.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; }
.grid-8col { display: grid; grid-template-columns: repeat(8, minmax(0,1fr)); gap: 12px; }

.matrix {
  display: grid;
  grid-template-columns: 140px repeat(4, 1fr);
  align-items: center;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--border);
}
.matrix:last-child { border-bottom: 0; }
.matrix__label { font-size: 13px; color: var(--text-muted); font-weight: 500; }

.chip-row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

.hero {
  position: relative;
  border-radius: var(--radius-2xl);
  background: var(--indigo-950);
  color: #fff;
  padding: 48px 48px 48px;
  overflow: hidden;
  margin-bottom: 48px;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background:
    radial-gradient(600px 400px at 90% -10%, rgba(251,110,68,0.45), transparent 60%),
    radial-gradient(500px 400px at 0% 110%, rgba(255,204,239,0.35), transparent 55%);
  z-index: -1;
}
.hero h1 {
  font-family: var(--font-display);
  font-size: 72px; font-weight: 400; line-height: 0.98; letter-spacing: -0.03em;
  margin: 0 0 16px; max-width: 820px;
}
.hero p { font-size: 18px; line-height: 1.55; color: rgba(255,255,255,0.82); max-width: 580px; margin: 0 0 28px; }
.hero__meta { display: flex; gap: 24px; flex-wrap: wrap; padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.15); margin-top: 32px; }
.hero__stat-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: rgba(255,255,255,0.6); margin-bottom: 4px; }
.hero__stat-value { font-size: 20px; font-weight: 600; color: #fff; }

.ambient-symbol {
  position: absolute;
  right: -40px; bottom: -60px;
  width: 360px; opacity: 0.1;
  color: #fff;
}

/* type specimens */
.specimen {
  display: grid; grid-template-columns: 200px 1fr; align-items: baseline;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.specimen:last-child { border-bottom: 0; }
.specimen__meta { font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); }
.specimen__meta b { display: block; color: var(--text); font-family: var(--font-sans); font-weight: 500; font-size: 13px; margin-bottom: 4px; }
.specimen__sample { color: var(--text); }

/* shadow cards */
.shadow-card {
  width: 100%; aspect-ratio: 1.7/1;
  background: #fff; border-radius: var(--radius-lg);
  display: flex; align-items: end; justify-content: start;
  padding: 14px;
  font-family: var(--font-mono); font-size: 12px; color: var(--text-muted);
}
.shadow-stage {
  background: #F7F5F0;
  padding: 32px;
  border-radius: var(--radius-lg);
}

/* icons grid */
.icon-grid {
  display: grid; grid-template-columns: repeat(10, 1fr); gap: 8px;
}
.icon-cell {
  aspect-ratio: 1; background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-subtle);
  transition: color .15s, border-color .15s, background .15s;
}
.icon-cell:hover { color: var(--indigo-950); border-color: var(--indigo-200); background: var(--indigo-50); }

/* big brand lockup */
.lockup {
  display: flex; align-items: center; gap: 16px;
  padding: 40px;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
  min-height: 160px;
  flex-wrap: wrap;
}
.lockup--dark { background: var(--indigo-950); color: #fff; border-color: transparent; }
.lockup--orange { background: var(--orange-500); color: #fff; border-color: transparent; }
.lockup--pink { background: var(--pink-200); color: var(--indigo-950); border-color: transparent; }

.kbd-row { display: flex; gap: 6px; }

.nav-menu {
  display: flex; gap: 4px;
  padding: 6px; background: var(--neutral-100); border-radius: var(--radius-full);
}
.nav-menu__item {
  padding: 6px 14px; font-size: 13px; font-weight: 500;
  border-radius: 999px; color: var(--text-subtle); cursor: pointer;
}
.nav-menu__item.active { background: #fff; color: var(--text); box-shadow: var(--shadow-xs); }

/* Use cases */
.city-tag {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px; font-weight: 500;
  background: #fff; border: 1px solid var(--border);
  color: var(--text);
}

/* Token row */
.token-row {
  display: grid;
  grid-template-columns: 56px 1fr 160px 120px;
  align-items: center; gap: 16px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.token-row:last-child { border-bottom: 0; }
.token-row__swatch {
  width: 40px; height: 40px; border-radius: 8px;
  border: 1px solid rgba(0,0,0,.06);
}
.token-row__name { font-size: 13px; font-weight: 500; color: var(--text); }
.token-row__desc { font-size: 12px; color: var(--text-muted); }
.token-row__var { font-family: var(--font-mono); font-size: 12px; color: var(--text-subtle); }
.token-row__hex { font-family: var(--font-mono); font-size: 12px; color: var(--text); text-align: right; }

.callout {
  display: flex; gap: 14px; padding: 16px;
  border-radius: var(--radius-md);
  background: var(--blue-50); border: 1px solid var(--blue-200);
  color: var(--blue-900);
}
.callout__icon { color: var(--blue-600); }
.callout__title { font-weight: 600; font-size: 14px; margin-bottom: 4px; color: var(--text); }
.callout__body  { font-size: 13.5px; line-height: 1.55; color: var(--text-subtle); }

/* responsive */
@media (max-width: 960px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .main { padding: 28px 20px 64px; }
  .hero h1 { font-size: 36px; }
  .hero { padding: 28px; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .icon-grid { grid-template-columns: repeat(6, 1fr); }
  .matrix { grid-template-columns: 1fr; }
  .token-row { grid-template-columns: 40px 1fr; }
  .token-row__var, .token-row__hex { display: none; }
}