/* ============================================================
   Storybook chrome — only used by storybook.html. Not part of
   the production CSS (these classes are sb-* prefixed).
   ============================================================ */

.sb-shell { min-height: 100vh; }

.sb-topbar {
  position: sticky; top: 0; z-index: 10;
  background: var(--surface-raised);
  border-bottom: 1px solid var(--line-soft);
  padding: var(--space-3) var(--space-6);
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  backdrop-filter: blur(8px);
}

.sb-page {
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-7) var(--space-6) var(--space-8);
}

.sb-intro {
  padding-bottom: var(--space-7);
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: var(--space-7);
}

.sb-section {
  margin-bottom: var(--space-8);
  scroll-margin-top: 80px;
}
.sb-section__head {
  display: flex; align-items: flex-start; gap: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: var(--space-5);
}
.sb-section__num {
  font-family: var(--font-serif);
  font-size: 28px;
  line-height: 1;
  color: var(--ink-tertiary);
  font-variant-numeric: tabular-nums;
  font-weight: 400;
  padding-top: 2px;
  flex-shrink: 0;
  width: 40px;
}
.sb-section__title { margin: 0 0 var(--space-2); }
.sb-section__intro { margin: 0; color: var(--ink-secondary); max-width: 720px; }

.sb-section__body { /* nothing for now */ }

/* Pair: side-by-side client | partner */
.sb-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}
@media (max-width: 1100px) {
  .sb-pair { grid-template-columns: 1fr; }
}

.sb-modecol {
  display: flex; flex-direction: column; gap: var(--space-3);
  min-width: 0;
}
.sb-modecol__label { display: flex; align-items: center; gap: var(--space-2); }
.sb-mode {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px; line-height: 16px;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--ink-tertiary);
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  background: var(--surface-sunk);
  border: 1px solid var(--line-soft);
}
.sb-mode--client::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-primary);
}
.sb-mode--partner::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-data);
}
.sb-modecol__inner { /* container */ }

/* Mini AppShell frames */
.sb-frame {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 320px;
  background: var(--surface-canvas);
}
.sb-frame .appshell { min-height: 100%; }
.sb-frame .appshell__main { padding: var(--space-5); }

/* generic grid */
.sb-grid { display: grid; gap: var(--space-4); }
.sb-grid--cols-2 { grid-template-columns: 1fr 1fr; }
@media (max-width: 1100px) {
  .sb-grid--cols-2 { grid-template-columns: 1fr; }
}

/* Type scale rows */
.sb-typerow {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--space-4);
  align-items: baseline;
  padding-bottom: var(--space-3);
  border-bottom: 1px dashed var(--line-soft);
}
.sb-typerow:last-child { border-bottom: none; padding-bottom: 0; }
.sb-typerow__cls {
  color: var(--ink-tertiary);
  font-size: 11px;
}

/* Swatches */
.sb-swatches {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-3);
}
.sb-swatch {
  display: flex; flex-direction: column; gap: var(--space-1);
  min-width: 0;
}
.sb-swatch__chip {
  width: 100%; height: 56px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line-soft);
}
.sb-swatch__name {
  font-size: 11px; color: var(--ink-secondary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

/* Footer */
.sb-footer {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--line-soft);
}