/**
 * Aadi appearance tokens — Day / Night.
 * Preference is stored separately (localStorage); resolved Night adds `html.dark`.
 * Load this stylesheet before page chrome CSS so shared aliases apply.
 */

:root {
  color-scheme: light;

  /* Canonical tokens */
  --background: #ffffff;
  --surface: #ffffff;
  --foreground: #003366;
  --body: #333333;
  --muted: #4a6280;
  --border: #e2e8f0;
  --accent: #0052a3;
  --accent-soft: #e8f1fb;

  /* Brand + page aliases (aadi-new-home / aadi-legal) */
  --navy: #003366;
  --deep: #ffffff;
  --deep-2: #f5f8fc;
  --blue: #0052a3;
  --red: #cc0000;
  --text: #003366;
  --line: rgba(0, 51, 102, 0.16);
  --soft: #e8f1fb;
  --bg: #ffffff;
  --link: #0052a3;
  --shadow: 0 10px 28px rgba(0, 51, 102, 0.08);
  --panel-bg: #ffffff;
  --control-bg: #ffffff;
  --field-mid: #f5f8fc;
  --btn-hover: #004080;
}

html.dark {
  color-scheme: dark;

  --background: #0b1220;
  --surface: #121a2b;
  --foreground: #f0f4f8;
  --body: #cbd5e1;
  --muted: #94a3b8;
  --border: rgba(226, 232, 240, 0.14);
  --accent: #3d8fd4;
  --accent-soft: rgba(0, 82, 163, 0.28);

  --navy: #e2e8f0;
  --deep: #0b1220;
  --deep-2: #121a2b;
  --blue: #3d8fd4;
  --red: #cc0000;
  --text: #f0f4f8;
  --line: rgba(226, 232, 240, 0.14);
  --soft: rgba(0, 82, 163, 0.22);
  --bg: #0b1220;
  --link: #5ba3e0;
  --shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
  --panel-bg: #121a2b;
  --control-bg: #151e30;
  --field-mid: #0f172a;
  --btn-hover: #2a6fad;
}

/* Night field atmosphere — deepen the marketing wash */
html.dark .field {
  background:
    radial-gradient(ellipse 70% 45% at 8% 0%, rgba(0, 82, 163, 0.22), transparent 55%),
    radial-gradient(ellipse 55% 40% at 94% 12%, rgba(0, 51, 102, 0.35), transparent 50%),
    linear-gradient(180deg, var(--background) 0%, var(--field-mid) 55%, var(--background) 100%) !important;
}

/* Wordmark: pages use --on-light; flip on Night */
html.dark .aadi-wordmark--on-light {
  color: #f1f5f9;
}

/* Appearance switcher (mirrors region-menu density) */
.appearance-menu {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.appearance-menu-label {
  font-family: var(--mono, "JetBrains Mono", ui-monospace, monospace);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.appearance-menu-trigger {
  appearance: none;
  -webkit-appearance: none;
  min-width: 5.5rem;
  padding: 8px 28px 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background:
    linear-gradient(45deg, transparent 50%, var(--blue) 50%) calc(100% - 14px) calc(50% - 2px) / 5px 5px no-repeat,
    linear-gradient(135deg, var(--blue) 50%, transparent 50%) calc(100% - 9px) calc(50% - 2px) / 5px 5px no-repeat,
    var(--control-bg);
  color: var(--text);
  font-family: Inter, system-ui, sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.appearance-menu-trigger:hover,
.appearance-menu-trigger:focus {
  border-color: rgba(0, 82, 163, 0.55);
}

.appearance-menu-trigger:focus-visible {
  box-shadow: 0 0 0 2px rgba(0, 82, 163, 0.25);
}

.appearance-menu-list {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 40;
  min-width: 9rem;
  margin: 0;
  padding: 6px;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.appearance-menu-list[hidden] {
  display: none !important;
}

.appearance-menu-option {
  display: block;
  width: 100%;
  text-align: left;
  padding: 8px 10px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.appearance-menu-option:hover,
.appearance-menu-option:focus-visible {
  background: var(--soft);
  outline: none;
}

.appearance-menu-option[aria-selected="true"] {
  color: var(--blue);
  background: var(--soft);
}

.appearance-menu.is-placeholder .appearance-menu-trigger {
  opacity: 0.55;
  pointer-events: none;
}

@media (max-width: 640px) {
  .appearance-menu-label {
    display: none;
  }
}