/* ════════════════════════════════════════════════════════════════
   Symbiosis.DataHub — global styles + Layer A utilities
   ════════════════════════════════════════════════════════════════ */

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--surface-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-feature-settings: 'cv11', 'ss01';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-size: 15px;
  line-height: 1.5;
}

#app { min-height: 100vh; }

/* === Scrollbar subtle warm === */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(138, 127, 112, 0.25);
  border-radius: 8px;
  border: 2px solid var(--surface-canvas);
}
::-webkit-scrollbar-thumb:hover { background: rgba(138, 127, 112, 0.45); }

::selection { background: var(--brand-bronze-subtle); color: var(--text-primary); }

:focus-visible {
  outline: 2px solid var(--brand-bronze);
  outline-offset: 2px;
  border-radius: 4px;
}

button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

/* === Section label === */
.sdh-section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-bottom: var(--space-3);
}

/* === Hero heading === */
.sdh-hero-h {
  margin: 0;
  font-size: var(--text-3xl);
  font-weight: 600;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  line-height: 1.15;
}
.sdh-hero-h em {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 600;
  color: var(--brand-bronze-deep);
}

/* === Pill badge === */
.sdh-pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  background: var(--surface-elevated);
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.2;
  white-space: nowrap;
}
.sdh-pill .pill-icon { color: var(--brand-bronze); display: inline-flex; }

/* === Warm card === */
.sdh-warm-card {
  border-radius: var(--radius-2xl);
  border: 1px solid var(--border-subtle);
  padding: var(--space-6);
  background: linear-gradient(180deg, var(--bg-tint, rgba(245, 242, 237, 0.4)), var(--surface-elevated));
  box-shadow: var(--shadow-card);
  transition: transform .2s var(--ease-card), box-shadow .2s var(--ease-card);
}
.sdh-warm-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* === Tabular numbers === */
.sdh-num {
  font-variant-numeric: tabular-nums;
  font-feature-settings: 'tnum';
}

/* === Metric big === */
.sdh-metric-big {
  font-family: var(--font-mono);
  font-size: 32px;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

/* === Editorial separator === */
.sdh-sep {
  display: block;
  width: 80px;
  height: 1px;
  background: var(--border-default);
  margin: var(--space-8) auto;
}

/* === Mono label === */
.sdh-mono-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-tertiary);
  letter-spacing: 0.04em;
}

/* === App shell === */
.sdh-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.sdh-main {
  flex: 1;
  padding-top: 0;
}

/* === Container === */
.sdh-container {
  max-width: 1480px;
  margin: 0 auto;
  padding: 0 var(--space-8);
}

@media (max-width: 900px) {
  .sdh-container { padding: 0 var(--space-4); }
}

/* === Generic button === */
.sdh-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 8px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-default);
  background: var(--surface-elevated);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 500;
  transition: background .15s, border-color .15s;
}
.sdh-btn:hover { background: var(--surface-sunken); border-color: var(--border-strong); }
.sdh-btn--bronze {
  background: var(--brand-bronze);
  border-color: var(--brand-bronze);
  color: #fff;
}
.sdh-btn--bronze:hover { background: var(--brand-bronze-hover); border-color: var(--brand-bronze-hover); color: #fff; }
.sdh-btn--ghost { background: transparent; border-color: transparent; color: var(--text-secondary); }
.sdh-btn--ghost:hover { background: var(--surface-sunken); }

/* === Link === */
.sdh-link {
  color: var(--brand-bronze-deep);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .15s;
}
.sdh-link:hover { border-bottom-color: var(--brand-bronze); }

/* === Quote (Source Serif italic) === */
.sdh-quote {
  font-family: var(--font-serif-body);
  font-style: italic;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--text-secondary);
}

/* === Tag chip (default + active) === */
.sdh-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 11px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-default);
  background: transparent;
  color: var(--text-secondary);
  font-size: 12.5px;
  cursor: pointer;
  transition: all .15s;
  font-variant-numeric: tabular-nums;
}
.sdh-chip:hover { border-color: var(--border-strong); color: var(--text-primary); }
.sdh-chip.is-active {
  background: var(--brand-bronze-subtle);
  border-color: var(--brand-bronze);
  color: var(--brand-bronze-deep);
}
.sdh-chip .chip-count {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-tertiary);
  margin-left: 2px;
}
.sdh-chip.is-active .chip-count { color: var(--brand-bronze-deep); opacity: 0.7; }

/* === Hue-tinted pill === */
.sdh-hpill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  border-radius: var(--radius-full);
  font-size: 11.5px;
  font-weight: 500;
  line-height: 1.3;
  border: 1px solid;
  white-space: nowrap;
}

/* === Toast/badge ★ === */
.sdh-focus-star {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  color: var(--brand-bronze);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 12px;
}

/* === KBD === */
.sdh-kbd {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid var(--border-default);
  background: var(--surface-sunken);
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* === density tweak === */
html[data-density="compact"] .sdh-warm-card { padding: var(--space-3) var(--space-4); }
html[data-density="compact"] .sdh-metric-big { font-size: 26px; }
html[data-density="compact"] .sdh-hero-h { font-size: 1.6rem; }

/* === fade-in === */
@keyframes sdhFade {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}
.sdh-fade { animation: sdhFade .25s var(--ease-card); }