/* S967 shared theme
   Default: follows the device/system theme.
   Explicit choices are applied with html[data-theme="light|dark"].
*/

:root {
  color-scheme: light dark;

  --page-bg:
    radial-gradient(circle at 50% 15%, rgba(0, 0, 0, 0.035), transparent 34%),
    linear-gradient(145deg, #f8f9fb 0%, #eef1f5 50%, #f7f8fa 100%);
  --text: #17191e;
  --muted: #68707d;
  --subtle: #9299a4;

  --surface: rgba(255, 255, 255, 0.74);
  --surface-hover: rgba(255, 255, 255, 0.96);
  --border: rgba(20, 24, 32, 0.14);
  --border-hover: rgba(20, 24, 32, 0.28);

  --shadow: 0 10px 30px rgba(0, 0, 0, 0.10);
  --menu-shadow: 0 16px 42px rgba(0, 0, 0, 0.16);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --page-bg:
      radial-gradient(circle at 50% 15%, rgba(255, 255, 255, 0.08), transparent 34%),
      linear-gradient(145deg, #111318 0%, #171a21 50%, #0e1014 100%);
    --text: #f3f4f6;
    --muted: #aeb4bf;
    --subtle: #626875;

    --surface: rgba(255, 255, 255, 0.07);
    --surface-hover: rgba(255, 255, 255, 0.12);
    --border: rgba(255, 255, 255, 0.18);
    --border-hover: rgba(255, 255, 255, 0.32);

    --shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
    --menu-shadow: 0 18px 44px rgba(0, 0, 0, 0.40);
  }
}

html[data-theme="light"] {
  color-scheme: light;

  --page-bg:
    radial-gradient(circle at 50% 15%, rgba(0, 0, 0, 0.035), transparent 34%),
    linear-gradient(145deg, #f8f9fb 0%, #eef1f5 50%, #f7f8fa 100%);
  --text: #17191e;
  --muted: #68707d;
  --subtle: #9299a4;

  --surface: rgba(255, 255, 255, 0.74);
  --surface-hover: rgba(255, 255, 255, 0.96);
  --border: rgba(20, 24, 32, 0.14);
  --border-hover: rgba(20, 24, 32, 0.28);

  --shadow: 0 10px 30px rgba(0, 0, 0, 0.10);
  --menu-shadow: 0 16px 42px rgba(0, 0, 0, 0.16);
}

html[data-theme="dark"] {
  color-scheme: dark;

  --page-bg:
    radial-gradient(circle at 50% 15%, rgba(255, 255, 255, 0.08), transparent 34%),
    linear-gradient(145deg, #111318 0%, #171a21 50%, #0e1014 100%);
  --text: #f3f4f6;
  --muted: #aeb4bf;
  --subtle: #626875;

  --surface: rgba(255, 255, 255, 0.07);
  --surface-hover: rgba(255, 255, 255, 0.12);
  --border: rgba(255, 255, 255, 0.18);
  --border-hover: rgba(255, 255, 255, 0.32);

  --shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
  --menu-shadow: 0 18px 44px rgba(0, 0, 0, 0.40);
}

/* Existing S967 pages */
body {
  background: var(--page-bg) !important;
  color: var(--text) !important;
}

.tagline,
.detail {
  color: var(--muted) !important;
}

footer,
.schedule,
.back,
.eyebrow {
  color: var(--subtle) !important;
}

.back:hover {
  color: var(--muted) !important;
}

.button {
  color: var(--text) !important;
  background: var(--surface) !important;
  border-color: var(--border) !important;
}

.button:hover {
  background: var(--surface-hover) !important;
  border-color: var(--border-hover) !important;
}

/* Theme control */
.theme-picker {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 1000;
}

.theme-button {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  cursor: pointer;
  font: inherit;
  font-size: 19px;
  line-height: 1;
  transition:
    transform 160ms ease,
    background 160ms ease,
    border-color 160ms ease;
}

.theme-button:hover {
  transform: translateY(-1px);
  background: var(--surface-hover);
  border-color: var(--border-hover);
}

.theme-button:active {
  transform: translateY(0) scale(0.97);
}

.theme-menu {
  position: absolute;
  right: 0;
  bottom: 54px;
  min-width: 148px;
  padding: 7px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface-hover);
  box-shadow: var(--menu-shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);

  opacity: 0;
  visibility: hidden;
  transform: translateY(8px) scale(0.98);
  transform-origin: bottom right;
  transition:
    opacity 140ms ease,
    visibility 140ms ease,
    transform 140ms ease;
}

.theme-picker.is-open .theme-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.theme-menu button {
  width: 100%;
  flex-wrap: wrap;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 10px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  font: inherit;
  font-size: 0.86rem;
}

.theme-menu button:hover {
  background: var(--surface);
}

.theme-menu .theme-choice-icon {
  width: 18px;
  text-align: center;
  opacity: 0.82;
}

.theme-button:focus-visible,
.theme-menu button:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 2px;
}

@media (max-width: 480px) {
  .theme-picker {
    right: 14px;
    bottom: 14px;
  }

  .theme-button {
    width: 42px;
    height: 42px;
  }

  .theme-menu {
    bottom: 52px;
  }
}

.button-break {
  flex-basis: 100%;
  height: 0;
}