:root {
  --page: #ece8e1;
  --card: #fff;
  --line: #ece5d9;
  --tab-bg: #f3eee6;
  --text: #23201c;
  --muted: #8a8278;
  --weak: #b3aa9c;
  --accent: #e07a55;
  --selected: #fbeee7;
  --stage: #15130f;
  color-scheme: light;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  min-width: 340px;
  margin: 0;
  background:
    radial-gradient(circle at 12% 8%, rgba(255,255,255,.42), transparent 26rem),
    var(--page);
  color: var(--text);
  font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
}
button { font: inherit; }
button:focus-visible { outline: 3px solid rgba(224,122,85,.42); outline-offset: 2px; }

.app-shell { max-width: 1180px; margin: 0 auto; padding: 28px 24px 52px; }
.app-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; margin-bottom: 24px; flex-wrap: wrap; }
.brand-block h1 { display: flex; align-items: center; gap: 11px; margin: 0; font-size: 29px; font-weight: 800; letter-spacing: -.6px; }
.brand-block p { margin: 7px 0 0; color: var(--muted); font-size: 14px; }
.pipeline-badges { display: flex; gap: 8px; margin: 0; padding: 0; list-style: none; flex-wrap: wrap; }
.pipeline-badges li { padding: 6px 11px; border: 1px solid #e6dfd2; border-radius: 999px; background: #f6f2ea; color: #7a7264; font-size: 11px; }

.workspace { display: flex; gap: 22px; align-items: stretch; flex-wrap: wrap; }
.camera-column { flex: 1 1 540px; min-width: 320px; }
.stage { position: relative; overflow: hidden; aspect-ratio: 4 / 3; border-radius: 22px; background: var(--stage); box-shadow: 0 18px 44px -20px rgba(0,0,0,.5); }
#camera-video { position: fixed; left: -9999px; top: 0; width: 2px; height: 2px; opacity: 0; pointer-events: none; }
#display-canvas { display: block; width: 100%; height: 100%; }
#interaction-canvas {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: default;
}
#interaction-canvas[data-cursor="drag"] { cursor: move; }
#interaction-canvas[data-cursor="scale"] { cursor: nwse-resize; }
#interaction-canvas[data-cursor="rotate"] { cursor: grab; }
#interaction-canvas[data-cursor="flip"] { cursor: pointer; }

.live-badge, .mirror-button { position: absolute; top: 14px; z-index: 4; border: 0; background: rgba(0,0,0,.45); color: #fff; backdrop-filter: blur(6px); }
.live-badge { left: 14px; display: flex; align-items: center; gap: 7px; padding: 6px 11px; border-radius: 999px; font-size: 11px; font-weight: 700; letter-spacing: 1.5px; }
.live-badge span { width: 8px; height: 8px; border-radius: 50%; background: #ff5a5a; animation: pb-pulse 1.4s infinite; }
.mirror-button { right: 14px; display: grid; width: 36px; height: 36px; place-items: center; border-radius: 50%; cursor: pointer; font-size: 19px; transition: background .15s, transform .15s; }
.mirror-button:hover { background: rgba(0,0,0,.62); transform: translateY(-1px); }
.mirror-button[aria-pressed="false"] { color: #d1cbc2; }

.camera-overlay { position: absolute; inset: 0; z-index: 5; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px; padding: 28px; background: rgba(18,16,13,.84); text-align: center; }
.overlay-icon { font-size: 42px; }
.camera-overlay p { max-width: 320px; margin: 0; color: #f3efe7; font-size: 15px; line-height: 1.55; }
.model-progress { display: flex; width: 100%; max-width: 280px; flex-direction: column; gap: 8px; }
.model-progress__track { height: 8px; border-radius: 999px; background: rgba(255,255,255,.18); overflow: hidden; }
.model-progress__fill { height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, #f7b733, #e07a55); transition: width .2s ease; }
.model-progress__text { margin: 0; color: #f3efe7; font-size: 13px; }
.primary-pill { margin-top: 4px; padding: 13px 28px; border: 0; border-radius: 999px; background: var(--accent); color: #fff; box-shadow: 0 10px 24px -10px rgba(224,122,85,.9); cursor: pointer; font-size: 15px; font-weight: 700; transition: transform .15s, box-shadow .15s; }
.primary-pill:hover { transform: translateY(-1px); box-shadow: 0 13px 27px -10px rgba(224,122,85,.9); }
.primary-pill:disabled { cursor: wait; opacity: .72; }

.countdown-overlay { position: absolute; inset: 0; z-index: 6; display: grid; place-items: center; color: #fff; font-size: clamp(80px,11vw,120px); font-weight: 900; text-shadow: 0 8px 24px rgba(0,0,0,.6); animation: pb-count .8s ease-out; pointer-events: none; }
.flash-overlay { position: absolute; inset: 0; z-index: 8; background: #fff; pointer-events: none; }
.capture-controls { display: grid; grid-template-columns: auto minmax(220px,1fr); gap: 12px; margin-top: 16px; }
.countdown-options { display: flex; gap: 3px; align-items: center; padding: 4px; border: 1px solid #ded6ca; border-radius: 14px; background: rgba(255,255,255,.62); }
.countdown-option { min-width: 42px; padding: 9px 10px; border: 0; border-radius: 10px; background: transparent; color: var(--muted); cursor: pointer; font-size: 12px; font-weight: 700; }
.countdown-option[aria-pressed="true"] { background: #fff; color: var(--text); box-shadow: 0 2px 7px -3px rgba(0,0,0,.35); }
.capture-button { width: 100%; padding: 15px; border: 0; border-radius: 16px; background: var(--text); color: #fff; box-shadow: 0 12px 26px -14px rgba(0,0,0,.7); cursor: pointer; font-size: 16px; font-weight: 800; letter-spacing: .5px; transition: background .15s, transform .15s; }
.capture-button:hover:not(:disabled) { transform: translateY(-1px); }
.capture-button:disabled { background: #c9c2b6; box-shadow: none; cursor: not-allowed; }
.capture-button.is-cancel { background: #a74343; }

.control-panel { display: flex; flex: 0 1 380px; min-width: 300px; max-height: 615px; min-height: 520px; flex-direction: column; padding: 8px; border: 1px solid var(--line); border-radius: 18px; background: var(--card); box-shadow: 0 8px 22px -16px rgba(0,0,0,.3); }
.tabs { display: flex; gap: 4px; padding: 4px; border-radius: 13px; background: var(--tab-bg); }
.tab-button { flex: 1; padding: 9px 4px; border: 0; border-radius: 10px; background: transparent; color: #9a9082; cursor: pointer; font-size: 13px; font-weight: 700; transition: color .15s, background .15s, box-shadow .15s; }
.tab-button[aria-selected="true"] { background: #fff; color: var(--text); box-shadow: 0 2px 6px -2px rgba(0,0,0,.2); }
.panel-content { flex: 1; min-height: 0; padding: 14px 8px 8px; }
.panel-view { display: flex; height: 100%; min-height: 0; flex-direction: column; }
.panel-note { margin: 0 0 10px; color: var(--weak); font-size: 11px; }
.panel-scroll { flex: 1; min-height: 0; margin: 0 -4px; padding: 2px 4px; overflow-y: auto; scrollbar-color: #cfc7b9 transparent; scrollbar-width: thin; }
.chip-grid { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 8px; }
.effect-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 9px; }
.effect-grid + .group-title { margin-top: 16px; }
.group-title { margin: 2px 2px 8px; color: var(--muted); font-size: 11px; font-weight: 700; }
.chip { display: flex; align-items: center; justify-content: center; aspect-ratio: 1; border: 2px solid var(--line); border-radius: 12px; background: #fff; cursor: pointer; font-size: 23px; line-height: 1; transition: border-color .12s, background .12s, transform .12s, box-shadow .12s; user-select: none; }
.chip:hover, .effect-chip:hover { transform: translateY(-1px); }
.chip[aria-pressed="true"], .effect-chip[aria-pressed="true"] { border-color: var(--accent); background: var(--selected); }
.background-chip { background: var(--swatch,#2b2622); color: #fff; font-size: 17px; text-shadow: 0 1px 2px rgba(0,0,0,.35); }
.background-chip[aria-checked="true"] { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(224,122,85,.28); }
.effect-chip { display: flex; flex-direction: column; align-items: center; gap: 5px; padding: 9px 4px; border: 2px solid var(--line); border-radius: 12px; background: #fff; cursor: pointer; transition: border-color .12s, background .12s, transform .12s; }
.effect-icon { font-size: 21px; line-height: 1; }
.effect-label { color: #6a6358; font-size: 11px; font-weight: 600; }

.gallery-section { margin-top: 28px; }
.gallery-section h2 { margin: 0 0 12px; font-size: 15px; font-weight: 800; }
.gallery-list { display: flex; gap: 14px; padding: 4px 2px 14px; overflow-x: auto; }
.photo-card { flex: none; width: 152px; overflow: hidden; border: 1px solid #e6dfd3; border-radius: 14px; background: #fff; box-shadow: 0 8px 20px -12px rgba(0,0,0,.4); }
.photo-card img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.photo-actions { display: flex; gap: 6px; padding: 8px; }
.photo-actions button { padding: 8px; border: 0; border-radius: 9px; cursor: pointer; font-size: 12px; font-weight: 700; }
.photo-download { flex: 1; background: var(--text); color: #fff; }
.photo-remove { padding-inline: 11px !important; background: #f0ebe3; color: var(--muted); }

.storage-warning { margin: 8px 2px 0; color: #a74343; font-size: 12px; }
@keyframes pb-pulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: .35; transform: scale(.92); } }
@keyframes pb-count { 0% { opacity: 0; transform: scale(.55); } 35% { opacity: 1; transform: scale(1.08); } 100% { opacity: .85; transform: scale(1); } }

@media (max-width: 700px) {
  .app-shell { padding: 18px 14px 36px; }
  .camera-column, .control-panel { min-width: 100%; }
  .control-panel { min-height: 500px; }
  .capture-controls { grid-template-columns: 1fr; }
  .countdown-options { justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}