/* ──────────────────────────────────────────────────────────────────
   Theme palettes — opt-in via [data-palette="…"] on any element.
   Applied to <body> on real app pages, or to a wrapper <div> on the
   palettes.html preview so each card can carry its own scope without
   nesting <body> tags (which browsers ignore). Layout, type scale,
   radii, and component shapes are unchanged.
   ────────────────────────────────────────────────────────────────── */

/* 1. Midnight Botanical — deep ink, lime-mint accent */
[data-palette="midnight"] {
  --bg:        oklch(14% 0.025 285);
  --surface:   oklch(17% 0.025 285);
  --surface-2: oklch(21% 0.022 285);
  --fg:        oklch(96% 0.01 95);
  --fg-2:      oklch(86% 0.018 95);
  --muted:     oklch(70% 0.022 285);
  --border:    oklch(32% 0.025 285);
  --border-soft: oklch(26% 0.022 285);
  --accent:    oklch(82% 0.18 145);
  --accent-on: oklch(14% 0.025 285);
  --accent-soft: color-mix(in oklch, var(--accent) 14%, transparent);
  --fg-soft:   color-mix(in oklch, var(--fg) 6%, transparent);
  --scrim:     color-mix(in oklch, #000 60%, transparent);
  --shadow-pop: 0 1px 0 var(--border-soft), 0 12px 32px -16px color-mix(in oklch, var(--accent) 28%, transparent);
  --shadow-drawer: -8px 0 32px rgba(0, 0, 0, 0.55);

  --success:   oklch(78% 0.16 150);
  --warn:      oklch(82% 0.16 80);
  --danger:    oklch(72% 0.20 25);
  --success-soft: color-mix(in oklch, var(--success) 14%, transparent);
  --warn-soft:   color-mix(in oklch, var(--warn)   18%, transparent);
  --danger-soft: color-mix(in oklch, var(--danger) 14%, transparent);

  --band-bg-1: oklch(18% 0.04 285);
  --band-bg-2: oklch(12% 0.04 285);
  --band-fg:   oklch(96% 0.01 95);
  --band-fg-soft: rgba(255, 255, 255, 0.78);
  --band-fg-muted: rgba(255, 255, 255, 0.9);
  --band-accent: oklch(82% 0.18 145);
  --band-chip-bg: rgba(255, 255, 255, 0.06);
  --band-chip-fg: oklch(92% 0.10 145);

  --focus-ring: 0 0 0 2px var(--accent);
  --focus-purple: oklch(82% 0.18 145);
}

/* 2. Solar Editorial — cream paper, oxblood ink, mustard accent */
[data-palette="solar"] {
  --bg:        oklch(96% 0.018 80);
  --surface:   oklch(98% 0.014 80);
  --surface-2: oklch(94% 0.020 80);
  --fg:        oklch(22% 0.06 25);
  --fg-2:      oklch(32% 0.06 25);
  --muted:     oklch(50% 0.04 40);
  --border:    oklch(82% 0.025 70);
  --border-soft: oklch(90% 0.020 70);
  --accent:    oklch(54% 0.20 28);
  --accent-on: oklch(98% 0.014 80);
  --accent-soft: color-mix(in oklch, var(--accent) 10%, transparent);
  --fg-soft:   color-mix(in oklch, var(--fg) 4%, transparent);
  --scrim:     color-mix(in oklch, var(--fg) 40%, transparent);
  --shadow-pop: 0 1px 0 var(--border-soft), 0 8px 24px -14px color-mix(in oklch, var(--fg) 18%, transparent);
  --shadow-drawer: -8px 0 24px color-mix(in oklch, var(--fg) 12%, transparent);

  --success:   oklch(48% 0.14 145);
  --warn:      oklch(72% 0.16 75);
  --danger:    oklch(50% 0.22 25);
  --success-soft: color-mix(in oklch, var(--success) 14%, transparent);
  --warn-soft:   color-mix(in oklch, var(--warn)   18%, transparent);
  --danger-soft: color-mix(in oklch, var(--danger) 14%, transparent);

  --band-bg-1: oklch(20% 0.06 25);
  --band-bg-2: oklch(14% 0.06 25);
  --band-fg:   oklch(96% 0.018 80);
  --band-fg-soft: rgba(255, 255, 255, 0.80);
  --band-fg-muted: rgba(255, 255, 255, 0.92);
  --band-accent: oklch(72% 0.16 75);
  --band-chip-bg: rgba(255, 255, 255, 0.08);
  --band-chip-fg: oklch(96% 0.018 80);

  --focus-ring: 0 0 0 2px var(--accent);
  --focus-purple: oklch(72% 0.16 75);
}

/* 3. Carbon Terminal — true black, electric cyan, monospace headings */
[data-palette="carbon"] {
  --bg:        oklch(8% 0.005 220);
  --surface:   oklch(11% 0.008 220);
  --surface-2: oklch(14% 0.010 220);
  --fg:        oklch(94% 0.01 220);
  --fg-2:      oklch(80% 0.018 220);
  --muted:     oklch(60% 0.018 220);
  --border:    oklch(24% 0.018 220);
  --border-soft: oklch(18% 0.014 220);
  --accent:    oklch(84% 0.16 195);
  --accent-on: oklch(8% 0.005 220);
  --accent-soft: color-mix(in oklch, var(--accent) 16%, transparent);
  --fg-soft:   color-mix(in oklch, var(--fg) 6%, transparent);
  --scrim:     color-mix(in oklch, #000 70%, transparent);
  --shadow-pop: 0 0 0 1px var(--accent-soft), 0 0 24px -4px color-mix(in oklch, var(--accent) 30%, transparent);
  --shadow-drawer: -8px 0 24px rgba(0, 0, 0, 0.7);

  --success:   oklch(80% 0.18 150);
  --warn:      oklch(82% 0.18 80);
  --danger:    oklch(72% 0.22 20);
  --success-soft: color-mix(in oklch, var(--success) 14%, transparent);
  --warn-soft:   color-mix(in oklch, var(--warn)   18%, transparent);
  --danger-soft: color-mix(in oklch, var(--danger) 14%, transparent);

  --font-display: "JetBrains Mono", "CohereMono", ui-monospace, "SF Mono", Menlo, monospace;

  --band-bg-1: oklch(8% 0.005 220);
  --band-bg-2: oklch(5% 0.005 220);
  --band-fg:   oklch(94% 0.01 220);
  --band-fg-soft: rgba(255, 255, 255, 0.72);
  --band-fg-muted: rgba(255, 255, 255, 0.88);
  --band-accent: oklch(84% 0.16 195);
  --band-chip-bg: oklch(16% 0.012 220);
  --band-chip-fg: oklch(84% 0.16 195);

  --focus-ring: 0 0 0 2px var(--accent);
  --focus-purple: oklch(84% 0.16 195);
}

/* ──────────────────────────────────────────────────────────────────
   Demo page (palettes.html) — show all three side by side with a
   light/dark toggle and a "back to index" link. Lives in this file
   so a single stylesheet swap shows the full preview.
   ────────────────────────────────────────────────────────────────── */

.palette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: var(--gap-lg);
  padding: var(--gap-xl) var(--gutter);
  max-width: var(--container);
  margin: 0 auto;
}

.palette-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.palette-card header {
  padding: var(--gap-md) var(--gap-lg);
  border-bottom: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-sm);
}

.palette-card header h2 {
  margin: 0;
  font-size: var(--fs-h3);
  font-weight: 600;
}

.palette-card header .swatches {
  display: inline-flex;
  gap: 6px;
}

.palette-card header .swatch {
  width: 16px; height: 16px; border-radius: 4px;
  border: 1px solid var(--border-soft);
}

.palette-card .preview {
  padding: var(--gap-md) var(--gap-lg);
  display: flex;
  flex-direction: column;
  gap: var(--gap-sm);
}

.palette-card .preview .row {
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
  flex-wrap: wrap;
}

.palette-card footer {
  padding: var(--gap-md) var(--gap-lg);
  border-top: 1px solid var(--border-soft);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--gap-sm);
  font-size: var(--fs-xs);
  color: var(--muted);
}

.palette-card footer a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.palette-card footer a:hover { text-decoration: underline; }

.palette-card .btn-row { display: inline-flex; gap: var(--gap-sm); flex-wrap: wrap; }
.palette-card .stat {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: var(--radius-pill);
  background: var(--surface-2); border: 1px solid var(--border-soft);
  font-family: var(--font-mono); font-size: var(--fs-xs);
}
.palette-card .stat .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
