/* =============================================================================
   Showroom chrome. Consumes ONLY semantic tokens from tokens.css.
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--yj-bg-canvas);
  color: var(--yj-fg-primary);
  font-family: var(--yj-font-sans);
  font-size: var(--yj-text-md);
  line-height: var(--yj-leading-normal);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

button { font: inherit; color: inherit; cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--yj-focus-ring);
  outline-offset: 2px;
  border-radius: var(--yj-radius-sm);
}

.app { height: 100%; display: flex; flex-direction: column; }

/* --------------------------------------------------------------- top bar */

.topbar {
  display: flex;
  align-items: center;
  gap: var(--yj-space-4);
  padding: var(--yj-space-4) var(--yj-space-6);
  border-bottom: 1px solid var(--yj-border-subtle);
  background: var(--yj-bg-surface);
  flex: none;
}

.brand { display: flex; align-items: baseline; gap: var(--yj-space-3); min-width: 0; }

.brand__mark {
  font-size: var(--yj-text-lg);
  font-weight: var(--yj-weight-bold);
  letter-spacing: var(--yj-tracking-tight);
  background: linear-gradient(96deg, var(--yj-hue-cyan), var(--yj-hue-magenta));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  white-space: nowrap;
}

.brand__sub {
  font-size: var(--yj-text-xs);
  color: var(--yj-fg-muted);
  letter-spacing: var(--yj-tracking-wide);
  text-transform: uppercase;
  white-space: nowrap;
}

.topbar__spacer { flex: 1; }

.topbar__actions { display: flex; align-items: center; gap: var(--yj-space-2); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--yj-space-2);
  padding: var(--yj-space-2) var(--yj-space-4);
  border-radius: var(--yj-radius-full);
  border: 1px solid var(--yj-border-default);
  background: var(--yj-bg-raised);
  color: var(--yj-fg-secondary);
  font-size: var(--yj-text-sm);
  font-weight: var(--yj-weight-medium);
  transition: background var(--yj-duration-fast) var(--yj-ease-out),
              color var(--yj-duration-fast) var(--yj-ease-out),
              border-color var(--yj-duration-fast) var(--yj-ease-out);
  white-space: nowrap;
}
.btn:hover { background: var(--yj-bg-inset); color: var(--yj-fg-primary); border-color: var(--yj-border-strong); }
.btn[aria-pressed="true"] {
  background: var(--yj-accent-soft);
  border-color: var(--yj-accent-border);
  color: var(--yj-fg-primary);
}

.btn__dot {
  width: 7px; height: 7px;
  border-radius: var(--yj-radius-full);
  background: var(--yj-fg-faint);
  flex: none;
}
.btn[aria-pressed="true"] .btn__dot {
  background: var(--yj-status-live);
  box-shadow: 0 0 0 3px rgb(46 230 168 / 0.2);
  animation: pulse 1.8s var(--yj-ease-inout) infinite;
}
@keyframes pulse { 50% { opacity: 0.35; } }

/* --------------------------------------------------------------- grid view */

.view { flex: 1; min-height: 0; overflow-y: auto; }
.view[hidden] { display: none; }

.grid-intro {
  padding: var(--yj-space-6) var(--yj-space-6) var(--yj-space-4);
  max-width: 62ch;
}
.grid-intro h1 {
  margin: 0 0 var(--yj-space-2);
  font-size: var(--yj-text-2xl);
  font-weight: var(--yj-weight-bold);
  letter-spacing: var(--yj-tracking-tight);
  line-height: var(--yj-leading-tight);
}
.grid-intro p { margin: 0; color: var(--yj-fg-muted); font-size: var(--yj-text-sm); }
.grid-intro kbd {
  font-family: var(--yj-font-mono);
  font-size: var(--yj-text-2xs);
  background: var(--yj-bg-raised);
  border: 1px solid var(--yj-border-default);
  border-bottom-width: 2px;
  border-radius: var(--yj-radius-sm);
  padding: 1px 5px;
  color: var(--yj-fg-secondary);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(228px, 1fr));
  gap: var(--yj-space-4);
  padding: var(--yj-space-2) var(--yj-space-6) var(--yj-space-8);
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--yj-space-3);
  padding: var(--yj-space-4);
  border-radius: var(--yj-radius-lg);
  border: 1px solid var(--yj-border-subtle);
  background: var(--yj-bg-surface);
  text-align: left;
  overflow: hidden;
  transition: transform var(--yj-duration-base) var(--yj-ease-out),
              border-color var(--yj-duration-base) var(--yj-ease-out),
              box-shadow var(--yj-duration-base) var(--yj-ease-out);
}
.card::after {
  /* hue wash keyed to the genre, set inline via --card-hue */
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 90% at 100% 0%,
              color-mix(in srgb, var(--card-hue) 22%, transparent), transparent 62%);
  opacity: 0.55;
  pointer-events: none;
  transition: opacity var(--yj-duration-base) var(--yj-ease-out);
}
.card:hover, .card:focus-visible {
  transform: translateY(-3px);
  border-color: var(--card-hue);
  box-shadow: var(--yj-shadow-3);
}
.card:hover::after, .card:focus-visible::after { opacity: 1; }

.card__thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: var(--yj-radius-md);
  background: var(--yj-play-bg);
  border: 1px solid var(--yj-border-subtle);
  overflow: hidden;
}
.card__thumb canvas { width: 100%; height: 100%; display: block; }

.card__index {
  position: absolute;
  top: var(--yj-space-2);
  left: var(--yj-space-2);
  z-index: 1;
  font-family: var(--yj-font-mono);
  font-size: var(--yj-text-2xs);
  font-weight: var(--yj-weight-semibold);
  padding: 2px 7px;
  border-radius: var(--yj-radius-full);
  background: rgb(6 7 12 / 0.72);
  color: var(--card-hue);
  border: 1px solid color-mix(in srgb, var(--card-hue) 40%, transparent);
}

.card__body { position: relative; z-index: 1; }
.card__title {
  margin: 0;
  font-size: var(--yj-text-md);
  font-weight: var(--yj-weight-semibold);
  letter-spacing: var(--yj-tracking-tight);
}
.card__genre {
  margin: 2px 0 0;
  font-size: var(--yj-text-2xs);
  font-family: var(--yj-font-mono);
  color: var(--yj-fg-faint);
  letter-spacing: var(--yj-tracking-wide);
  text-transform: uppercase;
}
.card__desc {
  margin: var(--yj-space-2) 0 0;
  font-size: var(--yj-text-xs);
  color: var(--yj-fg-muted);
  line-height: var(--yj-leading-snug);
}

/* --------------------------------------------------------------- stage view */

.stage { display: flex; flex-direction: column; height: 100%; }

.stage__bar {
  display: flex;
  align-items: center;
  gap: var(--yj-space-4);
  padding: var(--yj-space-3) var(--yj-space-6);
  border-bottom: 1px solid var(--yj-border-subtle);
  background: var(--yj-bg-surface);
  flex: none;
}
.stage__title {
  margin: 0;
  font-size: var(--yj-text-lg);
  font-weight: var(--yj-weight-semibold);
  letter-spacing: var(--yj-tracking-tight);
}
.stage__genre {
  font-family: var(--yj-font-mono);
  font-size: var(--yj-text-2xs);
  text-transform: uppercase;
  letter-spacing: var(--yj-tracking-wide);
  color: var(--yj-fg-on-accent);
  background: var(--stage-hue, var(--yj-accent));
  padding: 3px 9px;
  border-radius: var(--yj-radius-full);
  font-weight: var(--yj-weight-semibold);
}
.stage__spacer { flex: 1; }

.stage__body {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr 340px;
}
.stage__body[data-notes="off"] { grid-template-columns: 1fr; }
.stage__body[data-notes="off"] .notes { display: none; }

.stage__canvas-wrap {
  position: relative;
  min-width: 0;
  display: grid;
  place-items: center;
  background:
    radial-gradient(80% 60% at 50% 0%, var(--yj-bg-surface), transparent 70%),
    var(--yj-play-bg);
  padding: var(--yj-space-5);
}
#stage-canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  border-radius: var(--yj-radius-md);
  box-shadow: var(--yj-shadow-glow);
  background: var(--yj-play-bg);
}

.autoplay-badge {
  position: absolute;
  top: var(--yj-space-5);
  right: var(--yj-space-5);
  display: flex;
  align-items: center;
  gap: var(--yj-space-2);
  font-size: var(--yj-text-2xs);
  font-family: var(--yj-font-mono);
  letter-spacing: var(--yj-tracking-wide);
  text-transform: uppercase;
  color: var(--yj-fg-secondary);
  background: rgb(6 7 12 / 0.7);
  border: 1px solid var(--yj-border-subtle);
  border-radius: var(--yj-radius-full);
  padding: 4px 10px;
  pointer-events: none;
}
.autoplay-badge i {
  width: 6px; height: 6px; border-radius: var(--yj-radius-full);
  background: var(--yj-status-live);
  animation: pulse 1.8s var(--yj-ease-inout) infinite;
}

/* rotation progress hairline */
.rotate-bar {
  position: absolute;
  left: 0; bottom: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--yj-hue-cyan), var(--yj-hue-magenta));
  transition: width 120ms linear;
}
.rotate-bar[hidden] { display: none; }

/* --------------------------------------------------------------- notes rail */

.notes {
  border-left: 1px solid var(--yj-border-subtle);
  background: var(--yj-bg-surface);
  padding: var(--yj-space-5);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--yj-space-5);
}

.notes__section h3 {
  margin: 0 0 var(--yj-space-3);
  font-size: var(--yj-text-2xs);
  font-family: var(--yj-font-mono);
  text-transform: uppercase;
  letter-spacing: var(--yj-tracking-wide);
  color: var(--yj-fg-faint);
  font-weight: var(--yj-weight-semibold);
}

.notes__section ul { margin: 0; padding: 0; list-style: none; display: grid; gap: var(--yj-space-3); }
.notes__section li {
  font-size: var(--yj-text-sm);
  color: var(--yj-fg-secondary);
  line-height: var(--yj-leading-snug);
  padding-left: var(--yj-space-4);
  position: relative;
}
.notes__section li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 5px; height: 5px;
  border-radius: var(--yj-radius-full);
  background: var(--stage-hue, var(--yj-accent));
}

.spec { display: grid; gap: var(--yj-space-2); }
.spec__row { display: flex; justify-content: space-between; gap: var(--yj-space-3); font-size: var(--yj-text-xs); }
.spec__k { color: var(--yj-fg-faint); }
.spec__v { color: var(--yj-fg-secondary); font-family: var(--yj-font-mono); text-align: right; }

/* --------------------------------------------------------------- toast */

.toast {
  position: fixed;
  bottom: var(--yj-space-6);
  left: 50%;
  transform: translate(-50%, 12px);
  z-index: var(--yj-z-toast);
  background: var(--yj-bg-raised);
  border: 1px solid var(--yj-border-default);
  box-shadow: var(--yj-shadow-3);
  border-radius: var(--yj-radius-full);
  padding: var(--yj-space-2) var(--yj-space-5);
  font-size: var(--yj-text-sm);
  color: var(--yj-fg-secondary);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--yj-duration-base) var(--yj-ease-out),
              transform var(--yj-duration-base) var(--yj-ease-out);
}
.toast[data-show="true"] { opacity: 1; transform: translate(-50%, 0); }

/* --------------------------------------------------------------- responsive */

@media (max-width: 1080px) {
  .stage__body { grid-template-columns: 1fr; }
  .notes { display: none; }
}
@media (max-width: 720px) {
  .topbar, .grid, .grid-intro, .stage__bar { padding-left: var(--yj-space-4); padding-right: var(--yj-space-4); }
  .topbar {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--yj-space-3);
  }
  .topbar__spacer { display: none; }
  .topbar__actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .topbar__actions .btn { justify-content: center; min-height: 44px; }
  .brand__sub { display: none; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }

  .stage__bar {
    display: grid;
    grid-template-columns: 1fr auto auto;
    grid-template-areas:
      "back prev next"
      "title title genre";
    gap: var(--yj-space-2);
    padding-top: var(--yj-space-3);
    padding-bottom: var(--yj-space-3);
  }
  #btn-back { grid-area: back; justify-self: start; }
  #btn-prev { grid-area: prev; }
  #btn-next { grid-area: next; }
  .stage__title {
    grid-area: title;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .stage__genre {
    grid-area: genre;
    justify-self: end;
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }
  .stage__spacer, #btn-notes { display: none; }
  .stage__bar .btn { min-height: 44px; }
  .stage__canvas-wrap { padding: var(--yj-space-4); }
  .autoplay-badge { top: var(--yj-space-4); right: var(--yj-space-4); }
}