:root {
  color-scheme: dark;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  background: #0d1117;
  color: #f4f7fb;
  line-height: 1.45;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 15% 10%, rgba(25, 135, 84, 0.18), transparent 28rem),
    linear-gradient(145deg, #0d1117 0%, #151a24 46%, #111827 100%);
}

button,
select,
input {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  grid-template-rows: minmax(0, calc(100vh - 36px));
  gap: 18px;
  height: 100vh;
  padding: 18px;
}

.stage {
  position: relative;
  min-height: 0;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  overflow: hidden;
  background: #05070b;
  /* 隔离出独立层叠上下文，强制 stage 内所有图层在同一 GPU 合成树中混合 */
  isolation: isolate;
}

#jeeFaceFilterCanvas {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.status-bar {
  position: absolute;
  left: 16px;
  bottom: 16px;
  max-width: min(620px, calc(100% - 32px));
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 6px;
  background: rgba(8, 12, 18, 0.78);
  color: #cbd5e1;
  backdrop-filter: blur(10px);
}

.face-picker-overlay {
  position: absolute;
  left: 0;
  top: 0;
  width: min(100%, calc((100vh - 36px) * 4 / 3));
  height: 100%;
  max-height: 100%;
  aspect-ratio: 4 / 3;
  transform: none;
  z-index: 4;
  pointer-events: none;
}

.face-picker-box {
  position: absolute;
  display: grid;
  align-content: start;
  min-width: 82px;
  min-height: 58px;
  padding: 0;
  border: 2px solid var(--face-color, #45e0a3);
  border-radius: 7px;
  background: rgba(3, 7, 18, 0.04);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.14),
    0 0 0 1px rgba(0, 0, 0, 0.42);
  color: #f8fafc;
  cursor: pointer;
  overflow: visible;
  pointer-events: auto;
}

.face-picker-box:hover,
.face-picker-box:focus-visible {
  background: rgba(69, 224, 163, 0.12);
  outline: 2px solid rgba(255, 255, 255, 0.72);
  outline-offset: 2px;
}

.face-picker-box.is-selected {
  border-width: 3px;
  background: rgba(69, 224, 163, 0.16);
  box-shadow:
    0 0 0 2px rgba(255, 255, 255, 0.8),
    0 0 18px rgba(69, 224, 163, 0.38);
}

.face-picker-tag,
.face-picker-effect {
  justify-self: start;
  max-width: 100%;
  border-radius: 5px;
  background: rgba(3, 7, 18, 0.82);
  color: #f8fafc;
  white-space: nowrap;
}

.face-picker-tag {
  transform: translate(-2px, -32px);
  padding: 4px 7px;
  font-size: 0.75rem;
  font-weight: 800;
}

.face-picker-effect {
  margin-top: auto;
  transform: translate(-2px, calc(100% - 2px));
  padding: 3px 6px;
  color: #dbe6f5;
  font-size: 0.68rem;
}

.control-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
  min-height: 0;
  overflow: auto;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.86);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.22);
}

.eyebrow {
  margin: 0 0 4px;
  color: #45e0a3;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: 2rem;
  line-height: 1.05;
}

.subtitle {
  margin: 8px 0 0;
  color: #aab7ca;
}

.control-group {
  display: grid;
  gap: 8px;
}

.control-group label {
  color: #dbe6f5;
  font-size: 0.9rem;
  font-weight: 700;
}

.segmented {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.segmented button,
.button-row button,
select {
  min-height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: #f8fafc;
}

select {
  background-color: #1b2430;
}

select option {
  background-color: #1b2430;
  color: #f8fafc;
}

.segmented button,
.button-row button {
  cursor: pointer;
}

.segmented button.is-active {
  border-color: rgba(69, 224, 163, 0.82);
  background: rgba(69, 224, 163, 0.18);
}

.file-input {
  width: 100%;
  color: #cbd5e1;
}

.manual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.identity-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 8px;
}

.selected-face-summary {
  min-height: 32px;
  padding: 7px 9px;
  border: 1px solid rgba(69, 224, 163, 0.36);
  border-radius: 6px;
  background: rgba(69, 224, 163, 0.1);
  color: #dffdf1;
  font-size: 0.82rem;
}

select {
  width: 100%;
  padding: 0 10px;
}

.button-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.wide-button {
  min-height: 40px;
  border: 1px solid rgba(69, 224, 163, 0.5);
  border-radius: 6px;
  background: rgba(69, 224, 163, 0.14);
  color: #dffdf1;
  cursor: pointer;
}

.wide-button:hover {
  border-color: rgba(69, 224, 163, 0.82);
}

.download-link {
  display: block;
  min-height: 36px;
  padding: 8px 10px;
  border: 1px solid rgba(76, 201, 240, 0.38);
  border-radius: 6px;
  background: rgba(76, 201, 240, 0.1);
  color: #d8f3ff;
  font-size: 0.82rem;
  text-align: center;
  text-decoration: none;
}

.download-link[hidden] {
  display: none;
}

.button-row button:hover,
.segmented button:hover {
  border-color: rgba(255, 255, 255, 0.34);
}

.debug-panel {
  display: grid;
  gap: 12px;
  min-height: 0;
}

.debug-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.debug-kpis div,
.track-item {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: rgba(3, 7, 18, 0.32);
}

.debug-kpis div {
  padding: 10px;
}

.debug-kpis span {
  display: block;
  font-size: 1.35rem;
  font-weight: 800;
}

.debug-kpis small {
  color: #8fa3bd;
}

.track-list {
  display: grid;
  gap: 8px;
  overflow: auto;
}

.slot-meter {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.slot-meter span {
  min-width: 0;
  padding: 6px 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  color: #8fa3bd;
  font-size: 0.76rem;
  text-align: center;
}

.slot-meter span.is-active {
  border-color: rgba(69, 224, 163, 0.72);
  color: #dffdf1;
  background: rgba(69, 224, 163, 0.14);
}

.track-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 10px;
}

.track-item.is-selected {
  border-color: rgba(69, 224, 163, 0.72);
  background: rgba(69, 224, 163, 0.1);
}

.track-swatch {
  width: 12px;
  height: 36px;
  border-radius: 999px;
}

.track-title {
  font-weight: 800;
}

.track-meta {
  color: #8fa3bd;
  font-size: 0.78rem;
}

.track-identity {
  color: #dffdf1;
  font-size: 0.75rem;
}

.track-badge {
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  color: #dbe6f5;
  font-size: 0.78rem;
  white-space: nowrap;
}

.hidden-video {
  display: none;
}

.verify-shell .stage {
  position: relative;
}

.verify-video {
  display: block;
  position: relative;
  width: min(100%, calc((100vh - 36px) * 4 / 3));
  height: auto;
  max-height: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  background: #0f1117;
  z-index: 0;
  /* 强制视频进入常规 GPU 合成层，避免落到硬件 overlay 平面。
     否则 Chrome 会在半透明 canvas 叠加时留白（需鼠标移入才刷新），
     Edge 会把 overlay 平面渲染成黑屏。 */
  transform: translateZ(0);
  will-change: transform;
  backface-visibility: hidden;
}

#verifyCanvas,
#arCanvas,
#beautyCanvas {
  position: absolute;
  left: 50%;
  top: 50%;
  width: min(100%, calc((100vh - 36px) * 4 / 3));
  height: auto;
  max-height: 100%;
  aspect-ratio: 4 / 3;
  transform: translate(-50%, -50%);
  z-index: 1;
  pointer-events: none;
}

#arCanvas {
  z-index: 1;
}

#beautyCanvas {
  z-index: 2;
}

.stage:has(.face-picker-overlay) .status-bar {
  z-index: 5;
}

.text-input {
  width: 100%;
  box-sizing: border-box;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: #f6f7fb;
  padding: 10px 12px;
  font: inherit;
}

.reference-list {
  display: grid;
  gap: 8px;
}

.reference-empty,
.reference-item {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  background: rgba(3, 7, 18, 0.28);
}

.reference-empty {
  padding: 10px;
  color: #8fa3bd;
  font-size: 0.8rem;
}

.reference-item {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 8px;
}

.reference-item img {
  width: 54px;
  height: 54px;
  border-radius: 6px;
  object-fit: cover;
  background: rgba(255, 255, 255, 0.08);
}

.reference-name {
  margin-bottom: 5px;
  font-weight: 800;
}

.reference-item select {
  min-height: 32px;
  font-size: 0.8rem;
}

.reference-status {
  margin-top: 5px;
  color: #8fa3bd;
  font-size: 0.75rem;
}

.icon-button {
  width: 30px;
  height: 30px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.08);
  color: #f8fafc;
  cursor: pointer;
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .stage {
    min-height: 62vh;
  }

  .control-panel {
    order: -1;
  }
}