*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blur: 24px;
  --glass: rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.14);
  --glass-hover: rgba(255,255,255,0.13);
  --bg-from: #0d0d14;
  --bg-to: #1a1228;
  --text: rgba(255,255,255,0.92);
  --text-dim: rgba(255,255,255,0.42);
  --text-dimmer: rgba(255,255,255,0.26);
  --accent: #a78bfa;
  --accent2: #818cf8;
  --green: #34d399;
  --red: #f87171;
  --yellow: #fbbf24;
  --radius: 16px;
  --radius-sm: 10px;
  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Helvetica Neue', sans-serif;
}

html { height: 100%; }

body {
  min-height: 100vh;
  font-family: var(--font);
  color: var(--text);
  outline: none;
  padding: 24px 20px 80px;
  /* 渐变 + 噪点背景，模拟苹果暗色 */
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(99,67,200,0.28) 0%, transparent 60%),
    radial-gradient(ellipse 60% 70% at 80% 80%, rgba(30,60,160,0.22) 0%, transparent 55%),
    linear-gradient(160deg, var(--bg-from) 0%, var(--bg-to) 100%);
  background-attachment: fixed;
}

/* ─── Glass mixin ──────────────────────────────────────── */
.glass {
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(var(--blur)) saturate(160%);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(160%);
}

.container { max-width: 1060px; margin: 0 auto; }

/* ─── Header ───────────────────────────────────────────── */
header { text-align: center; padding: 36px 0 28px; }
header h1 {
  font-size: clamp(1.5rem, 3.5vw, 2.1rem);
  font-weight: 700;
  letter-spacing: 0.16em;
  background: linear-gradient(135deg, #e0d7ff 20%, #a78bfa 60%, #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.subtitle {
  margin-top: 8px;
  color: var(--text-dim);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  font-weight: 400;
}

kbd {
  display: inline-block; padding: 1px 6px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 5px; font-size: 0.75em;
  font-family: monospace;
  background: rgba(255,255,255,.06);
}

/* ─── Status bar ───────────────────────────────────────── */
.status-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 18px; border-radius: var(--radius);
  margin-bottom: 22px; font-size: 0.84rem;
  font-weight: 400; letter-spacing: 0.01em;
  transition: background .3s, border-color .3s;
}
.status-bar.loading { background: rgba(251,191,36,.07); border: 1px solid rgba(251,191,36,.2); }
.status-bar.ready   { background: rgba(52,211,153,.07); border: 1px solid rgba(52,211,153,.2); }
.status-bar.working { background: rgba(129,140,248,.07); border: 1px solid rgba(129,140,248,.2); }
.status-bar.error   { background: rgba(248,113,113,.07); border: 1px solid rgba(248,113,113,.2); }

.status-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.status-bar.loading .status-dot { background: var(--yellow); animation: blink 1.3s ease infinite; }
.status-bar.ready   .status-dot { background: var(--green); }
.status-bar.working .status-dot { background: var(--accent2); animation: blink .9s ease infinite; }
.status-bar.error   .status-dot { background: var(--red); }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:.25} }

/* ─── Drop zone ────────────────────────────────────────── */
.drop-zone {
  border: 1.5px dashed rgba(255,255,255,.2);
  border-radius: var(--radius);
  background: rgba(255,255,255,.04);
  padding: 58px 32px;
  text-align: center; cursor: pointer; outline: none;
  transition: border-color .2s, background .2s;
}
.drop-zone:hover, .drop-zone:focus, .drop-zone.dragover {
  border-color: rgba(167,139,250,.55);
  background: rgba(167,139,250,.07);
}
.drop-icon { color: rgba(255,255,255,.3); margin-bottom: 14px; }
.drop-text { font-size: 0.97rem; font-weight: 500; color: var(--text); margin-bottom: 7px; }
.drop-hint { color: var(--text-dim); font-size: 0.78rem; }

/* ─── Results header ───────────────────────────────────── */
.results-header { margin-bottom: 20px; }
.results-title-row {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 10px; margin-bottom: 14px;
}
.results-title-row h2 { font-size: 0.95rem; font-weight: 600; color: var(--text-dim); letter-spacing: .06em; text-transform: uppercase; }

.controls {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
}
.control-item {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.78rem; color: var(--text-dim);
}
.control-item input[type=range] {
  width: 82px;
  accent-color: var(--accent);
  cursor: pointer;
}

/* ─── Buttons ──────────────────────────────────────────── */
.btn {
  padding: 7px 15px; border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.07);
  color: var(--text); font-size: 0.79rem; font-weight: 500;
  cursor: pointer; white-space: nowrap;
  backdrop-filter: blur(8px);
  transition: background .15s, border-color .15s, transform .1s;
  font-family: var(--font);
}
.btn:hover     { background: rgba(255,255,255,.13); border-color: rgba(255,255,255,.24); }
.btn:active    { transform: scale(.97); }

.btn-download  { border-color: rgba(52,211,153,.3); color: var(--green); }
.btn-download:hover { background: rgba(52,211,153,.1); }

.btn-download-all {
  border-color: rgba(52,211,153,.35); color: var(--green);
  font-weight: 600; padding: 8px 20px;
  background: rgba(52,211,153,.08);
}
.btn-download-all:hover { background: rgba(52,211,153,.15); }

.btn-manual { border-color: rgba(167,139,250,.28); color: var(--accent); font-size: 0.75rem; padding: 5px 11px; }
.btn-manual:hover { background: rgba(167,139,250,.1); }
.btn-manual.active { background: rgba(167,139,250,.2); border-color: rgba(167,139,250,.6); color: #d0c4ff; }

/* ─── Canvas grid ──────────────────────────────────────── */
.canvas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  overflow: visible;
}
.results { overflow: visible; }

/* Card */
.canvas-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.1);
  background: rgba(255,255,255,.05);
  cursor: pointer;
  position: relative; z-index: 1;
  will-change: transform;
  transition:
    transform .3s cubic-bezier(.25,.8,.25,1),
    box-shadow .3s ease,
    border-color .25s;
}
.canvas-card:hover {
  transform: scale(1.85);
  transform-origin: center top;
  box-shadow: 0 24px 80px rgba(0,0,0,.75), 0 0 0 1px rgba(167,139,250,.35);
  border-color: rgba(167,139,250,.4);
  z-index: 200;
  overflow: visible;
}
/* 去掉所有 ::after 遮罩，不让图片变暗 */
.canvas-card::after { display: none; }

.canvas-card canvas { display: block; width: 100%; height: auto; }

/* Card footer */
.canvas-card-footer {
  padding: 9px 12px;
  display: flex; align-items: flex-start;
  justify-content: space-between; gap: 8px; flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,.07);
  background: rgba(0,0,0,.2);
}
.footer-left { display: flex; flex-direction: column; gap: 5px; }
.face-count  { font-size: 0.72rem; color: var(--text-dimmer); }

/* Processing state */
.canvas-card.card-processing { min-height: 120px; }
.canvas-card.card-processing canvas { display: none; }
.canvas-card.card-processing .card-spinner {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim); font-size: 0.8rem; gap: 8px;
}
.spinner-ring {
  width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,.15);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── File protocol warning ────────────────────────────── */
.file-warn {
  background: rgba(251,191,36,.07);
  border: 1px solid rgba(251,191,36,.25);
  color: var(--yellow);
  padding: 11px 18px; font-size: 0.82rem;
  display: flex; flex-direction: column; gap: 4px;
  border-radius: var(--radius-sm); margin-bottom: 16px;
}
.file-warn code {
  background: rgba(255,255,255,.08); padding: 1px 6px;
  border-radius: 4px; font-family: monospace;
}
.file-warn a { color: #93c5fd; }

/* ─── Modal overlay ────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(0,0,0,.72);
  backdrop-filter: blur(12px);
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
}
.modal-box {
  background: rgba(22,20,35,.82);
  border: 1px solid rgba(255,255,255,.13);
  backdrop-filter: blur(40px) saturate(180%);
  -webkit-backdrop-filter: blur(40px) saturate(180%);
  border-radius: 20px; overflow: hidden;
  display: flex; flex-direction: column;
  max-width: 95vw; max-height: 95vh; width: 100%;
  box-shadow: 0 30px 100px rgba(0,0,0,.7);
}

.modal-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255,255,255,.09);
  background: rgba(255,255,255,.04);
  flex-shrink: 0; flex-wrap: wrap; gap: 8px;
}
.modal-title { font-size: 0.88rem; font-weight: 600; color: var(--text); white-space: nowrap; letter-spacing: .02em; }
.modal-tools { display: flex; gap: 8px; flex-wrap: wrap; }

.btn-modal-edit { border-color: rgba(167,139,250,.3); color: var(--accent); }
.btn-modal-edit.active { background: rgba(167,139,250,.2); border-color: rgba(167,139,250,.6); color: #d0c4ff; }
.btn-modal-close { border-color: rgba(248,113,113,.25); color: var(--red); }
.btn-modal-close:hover { background: rgba(248,113,113,.1); }

.modal-hint-bar {
  padding: 8px 18px; font-size: 0.75rem;
  color: var(--text-dimmer); letter-spacing: .01em;
  background: rgba(0,0,0,.15);
  border-bottom: 1px solid rgba(255,255,255,.06);
  flex-shrink: 0;
}
.modal-canvas-wrap {
  flex: 1; overflow: auto; display: flex;
  align-items: flex-start; justify-content: flex-start;
  background: #070710; min-height: 0;
}
#modal-canvas { display: block; max-width: 100%; max-height: 80vh; object-fit: contain; }

/* ─── Misc ─────────────────────────────────────────────── */
.hidden { display: none !important; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,.15); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,.25); }