/* Design tokens — html[data-theme] from theme.js; no-JS uses prefers-color-scheme */

html:not([data-theme]) {
  color-scheme: light dark;
  --bg: #0c0c0d;
  --fg: #ececea;
  --muted: #94949c;
  --accent: #c4a574;
  --accent-hover: #d4b888;
  --accent-subtle: color-mix(in srgb, var(--accent) 14%, transparent);
  --on-accent: #14120e;
  --surface: #161618;
  --surface-raised: #1e1e22;
  --border: color-mix(in srgb, var(--fg) 14%, transparent);
  --border-strong: color-mix(in srgb, var(--fg) 22%, transparent);
  --focus-ring: color-mix(in srgb, var(--accent) 45%, transparent);
  --slot-bg: #1a1a1e;
  --shimmer: #2a2a32;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.4);
  --card-bg: var(--surface-raised);
  --card-border: var(--border);
  --input-bg: var(--surface);
  --input-border: var(--border-strong);
  --btn-bg: color-mix(in srgb, var(--fg) 8%, transparent);
  --btn-bg-hover: color-mix(in srgb, var(--fg) 14%, transparent);
  --btn-border: var(--border-strong);
  --ok-bg: color-mix(in srgb, #4ade80 14%, transparent);
  --ok-fg: #86efac;
  --err-bg: color-mix(in srgb, #f87171 14%, transparent);
  --err-fg: #fca5a5;
  --font-display: "Instrument Serif", Georgia, "Times New Roman", serif;
  --font-body: "DM Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

@media (prefers-color-scheme: light) {
  html:not([data-theme]) {
    color-scheme: light;
    --bg: #f6f4f0;
    --fg: #1a1816;
    --muted: #6b6560;
    --accent: #7a6344;
    --accent-hover: #5c4a32;
    --accent-subtle: color-mix(in srgb, var(--accent) 12%, transparent);
    --on-accent: #faf8f5;
    --surface: #ffffff;
    --surface-raised: #fffefb;
    --border: color-mix(in srgb, var(--fg) 10%, transparent);
    --border-strong: color-mix(in srgb, var(--fg) 18%, transparent);
    --slot-bg: #ebe8e3;
    --shimmer: #ddd8d0;
    --shadow-sm: 0 1px 2px rgba(26, 24, 22, 0.06);
    --shadow-md: 0 10px 32px rgba(26, 24, 22, 0.1);
    --ok-bg: color-mix(in srgb, #16a34a 10%, transparent);
    --ok-fg: #15803d;
    --err-bg: color-mix(in srgb, #dc2626 10%, transparent);
    --err-fg: #b91c1c;
  }
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0c0c0d;
  --fg: #ececea;
  --muted: #94949c;
  --accent: #c4a574;
  --accent-hover: #d4b888;
  --accent-subtle: color-mix(in srgb, var(--accent) 14%, transparent);
  --on-accent: #14120e;
  --surface: #161618;
  --surface-raised: #1e1e22;
  --border: color-mix(in srgb, var(--fg) 14%, transparent);
  --border-strong: color-mix(in srgb, var(--fg) 22%, transparent);
  --focus-ring: color-mix(in srgb, var(--accent) 45%, transparent);
  --slot-bg: #1a1a1e;
  --shimmer: #2a2a32;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
  --shadow-md: 0 8px 28px rgba(0, 0, 0, 0.4);
  --card-bg: var(--surface-raised);
  --card-border: var(--border);
  --input-bg: var(--surface);
  --input-border: var(--border-strong);
  --btn-bg: color-mix(in srgb, var(--fg) 8%, transparent);
  --btn-bg-hover: color-mix(in srgb, var(--fg) 14%, transparent);
  --btn-border: var(--border-strong);
  --ok-bg: color-mix(in srgb, #4ade80 14%, transparent);
  --ok-fg: #86efac;
  --err-bg: color-mix(in srgb, #f87171 14%, transparent);
  --err-fg: #fca5a5;
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #f6f4f0;
  --fg: #1a1816;
  --muted: #6b6560;
  --accent: #7a6344;
  --accent-hover: #5c4a32;
  --accent-subtle: color-mix(in srgb, var(--accent) 12%, transparent);
  --on-accent: #faf8f5;
  --surface: #ffffff;
  --surface-raised: #fffefb;
  --border: color-mix(in srgb, var(--fg) 10%, transparent);
  --border-strong: color-mix(in srgb, var(--fg) 18%, transparent);
  --slot-bg: #ebe8e3;
  --shimmer: #ddd8d0;
  --shadow-sm: 0 1px 2px rgba(26, 24, 22, 0.06);
  --shadow-md: 0 10px 32px rgba(26, 24, 22, 0.1);
  --card-bg: var(--surface-raised);
  --card-border: var(--border);
  --input-bg: var(--surface);
  --input-border: var(--border-strong);
  --btn-bg: color-mix(in srgb, var(--fg) 8%, transparent);
  --btn-bg-hover: color-mix(in srgb, var(--fg) 14%, transparent);
  --btn-border: var(--border-strong);
  --ok-bg: color-mix(in srgb, #16a34a 10%, transparent);
  --ok-fg: #15803d;
  --err-bg: color-mix(in srgb, #dc2626 10%, transparent);
  --err-fg: #b91c1c;
}

.theme-toggle {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: 0 0.65rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--fg);
  font: inherit;
  cursor: pointer;
  transition: background 0.2s var(--ease-out), border-color 0.2s var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}

.theme-toggle:hover {
  background: var(--btn-bg-hover);
  border-color: var(--border-strong);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.theme-toggle__icon {
  font-size: 1.1rem;
  line-height: 1;
}

.theme-toggle[data-pref="system"] .theme-toggle__icon::before {
  content: "◐";
}

.theme-toggle[data-pref="light"] .theme-toggle__icon::before {
  content: "☀";
}

.theme-toggle[data-pref="dark"] .theme-toggle__icon::before {
  content: "☾";
}