:root {
  /* default light theme will be applied via data-theme attribute; keep dark as fallback */
  --bg: #0b0d12;
  --panel: #121520;
  --panel-2: #0f1320;
  --text: #e6e8ef;
  --muted: #98a2b3;
  --primary: #4f46e5;
  --accent: #22d3ee;
  --border: #202536;
  --success: #10b981;
}

/* Light themes */
[data-theme="light"] {
  --bg: #f6f8fb;
  --panel: #ffffff;
  --panel-2: #f3f6fb;
  --text: #0f172a;
  --muted: #475569;
  --primary: #2563eb;
  --accent: #22c55e;
  --border: #e5e7eb;
  --success: #16a34a;
}

[data-theme="pastel"] {
  --bg: #faf7ff;
  --panel: #ffffff;
  --panel-2: #fff8fb;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #a78bfa; /* purple-300 */
  --accent: #f472b6; /* pink-400 */
  --border: #efe7fb;
  --success: #10b981;
}

[data-theme="warm"] {
  --bg: #fff7ed;
  --panel: #fffbeb;
  --panel-2: #fff1e6;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #ea580c; /* orange-600 */
  --accent: #f59e0b; /* amber-500 */
  --border: #fde68a;
  --success: #16a34a;
}

[data-theme="cool"] {
  --bg: #f0f9ff;
  --panel: #ffffff;
  --panel-2: #ecfeff;
  --text: #0f172a;
  --muted: #475569;
  --primary: #0284c7; /* sky-600 */
  --accent: #22d3ee; /* cyan-400 */
  --border: #cfe9ff;
  --success: #0ea5e9;
}

[data-theme="minimal"] {
  --bg: #f9fafb;
  --panel: #ffffff;
  --panel-2: #f3f4f6;
  --text: #111827;
  --muted: #6b7280;
  --primary: #111827; /* monochrome */
  --accent: #3b82f6;
  --border: #e5e7eb;
  --success: #16a34a;
}

[data-theme="contrast"] {
  --bg: #ffffff;
  --panel: #ffffff;
  --panel-2: #f8fafc;
  --text: #0b0b0b;
  --muted: #1f2937;
  --primary: #111827;
  --accent: #ef4444; /* red-500 */
  --border: #0b0b0b22;
  --success: #0d9488; /* teal-600 */
}

[data-theme="paper"] {
  --bg: #fbfaf7;
  --panel: #ffffff;
  --panel-2: #faf5e6;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #8b5cf6; /* violet */
  --accent: #f59e0b; /* amber */
  --border: #ece7da;
  --success: #16a34a;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 'Apple Color Emoji', 'Segoe UI Emoji';
}

.app {
  display: grid;
  grid-template-rows: auto 1fr auto;
  min-height: 100vh;
}

.app__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  position: sticky;
  top: 0;
  z-index: 10;
}
.app__header h1 { font-size: 18px; margin: 0; }
.app__actions { display: flex; gap: 8px; }
.switch { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 13px; }
.switch input { accent-color: var(--primary); }

.btn {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
}
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

.link-btn { background: none; border: none; color: var(--accent); cursor: pointer; font-weight: 600; }

.app__main {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 16px;
  padding: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
}

.form__row { display: grid; gap: 8px; margin-bottom: 14px; }
.form__row label { color: var(--muted); font-size: 13px; }
.form__row input, .form__row textarea {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 12px;
  border-radius: 10px;
  outline: none;
}
.form__row textarea { resize: vertical; min-height: 120px; }

.dropzone {
  border: 1px dashed var(--border);
  border-radius: 12px;
  background: var(--panel-2);
  padding: 16px;
  text-align: center;
  outline: none;
}
.dropzone--active { border-color: var(--accent); background: rgba(34, 211, 238, 0.06); }
.dropzone .hint { color: var(--muted); font-size: 12px; margin: 8px 0 0; }

.panel--preview { display: grid; align-content: start; }
.preview-toolbar { display: flex; gap: 12px; align-items: center; margin-bottom: 12px; }

.frame {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--panel-2);
  border: 1px dashed var(--border);
  border-radius: 16px;
  padding: 24px; /* safe area for video */
  display: grid;
  place-items: center;
}
.frame--video {
  background:
    radial-gradient(1200px 700px at -10% -20%, rgba(2,132,199,0.08) 0%, transparent 50%),
    radial-gradient(1200px 700px at 110% 120%, rgba(34,197,94,0.08) 0%, transparent 50%),
    var(--panel-2);
}

.card {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr; /* top title, then content */
}

.card__top {
  padding: 10px 14px 6px;
  text-align: center;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.card__title { margin: 0; font-size: clamp(16px, 2.6vw, 28px); line-height: 1.2; font-weight: 800; }

.card__content {
  display: grid;
  grid-template-columns: 1fr 1fr; /* left image, right info */
  min-height: 0; /* allow children to shrink within aspect ratio */
}
.card__left { position: relative; min-width: 0; }
.card__right { padding: 18px; display: grid; grid-template-rows: 1fr auto; grid-template-areas: "params" "price"; gap: 12px; min-width: 0; }

.card__media {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(79,70,229,0.08), rgba(34,211,238,0.06));
  background-size: contain; /* show full image without cropping */
  background-repeat: no-repeat;
  background-position: center;
  background-color: var(--panel-2);
}

.card__price {
  grid-area: price;
  color: var(--panel);
  font-weight: 800;
  font-size: clamp(18px, 2.4vw, 28px);
  white-space: nowrap;
  justify-self: stretch;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--primary);
  color: #ffffff; /* ensure stable contrast in exports */
  text-align: center;
  border: 1px solid var(--border);
  position: relative;
  box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}

.card__price::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(80px 60px at 20% 30%, rgba(255,255,255,0.25) 0%, transparent 70%),
    radial-gradient(80px 60px at 80% 70%, rgba(255,255,255,0.18) 0%, transparent 70%);
  border-radius: inherit;
}

/* Few-params enhancement: center and enlarge price, add subtle pattern */
.card__params { grid-area: params; }

.card--few .card__right { grid-template-rows: 1fr; grid-template-areas: "price"; position: relative; }
.card--few .card__params { display: none; }
.card--few .card__price {
  align-self: center;
  justify-self: center;
  font-size: clamp(22px, 3.4vw, 40px);
  padding: 16px 22px;
  border-radius: 16px;
}
.card--few .card__price::after {
  content: "";
  position: absolute;
  inset: -24px;
  background:
    radial-gradient(120px 120px at 20% 30%, rgba(34,211,238,0.18) 0%, transparent 70%),
    radial-gradient(140px 140px at 80% 70%, rgba(79,70,229,0.18) 0%, transparent 70%);
  filter: blur(2px);
  z-index: -1;
}
.card--few .card__right::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(180px 180px at 25% 35%, rgba(2,132,199,0.18) 0%, transparent 70%),
    radial-gradient(200px 200px at 75% 65%, rgba(34,197,94,0.16) 0%, transparent 70%);
  pointer-events: none;
}

.card__params {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr; /* single column, multi-rows */
  gap: 12px;
}
.card__param-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: clamp(14px, 1.9vw, 18px);
  line-height: 1.5;
  color: var(--text);
  padding: 6px 8px;
}
.card__param-badge {
  width: 8px;
  height: 8px;
  border-radius: 9999px;
  background: var(--accent);
  margin-top: 6px;
  flex-shrink: 0;
}
.card__param-key { color: var(--muted); font-weight: 600; letter-spacing: 0.2px; }
.card__param-value { color: var(--text); font-weight: 700; }

.app__footer { color: var(--muted); padding: 8px 16px 16px; font-size: 12px; }

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