:root {
  --bg: #120d08;
  --panel: #1e1610;
  --panel2: #2a1f16;
  --accent: #d4a017;
  --accent2: #8b3a1f;
  --text: #f5e9d6;
  --muted: #b9a88a;
  --border: #3a2c1e;
  --radius: 14px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: 'Poppins', system-ui, -apple-system, sans-serif;
  background: radial-gradient(1200px 600px at 10% -10%, #2a1f16, transparent), var(--bg);
  color: var(--text);
  min-height: 100vh;
}
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(18,13,8,0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-logo { width: 46px; height: 46px; border-radius: 50%; object-fit: cover; border: 2px solid var(--accent); }
.topbar h1 { margin: 0; font-size: 20px; font-family: 'Playfair Display', serif; color: var(--accent); }
.subtitle { margin: 0; font-size: 12px; color: var(--muted); }
.layout {
  display: grid;
  grid-template-columns: 1fr 1fr 1.1fr;
  gap: 18px;
  padding: 20px;
  max-width: 1500px;
  margin: 0 auto;
}
.panel {
  background: linear-gradient(180deg, var(--panel), var(--panel2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
}
.panel h2 { margin: 0 0 14px; font-size: 16px; color: var(--accent); font-family: 'Playfair Display', serif; }
.template-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  max-height: 70vh;
  overflow: auto;
  padding-right: 4px;
}
.template-card {
  position: relative;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  background: #000;
  transition: transform .15s, border-color .15s;
}
.template-card img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.template-card .tmpl-name {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.85));
  color: #fff; font-size: 11px; padding: 18px 6px 6px;
  text-align: center;
}
.template-card.selected { border-color: var(--accent); transform: scale(1.02); box-shadow: 0 0 0 2px var(--accent); }
.template-card:hover { transform: scale(1.03); }

form { display: flex; flex-direction: column; gap: 10px; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--muted); }
input, select, textarea {
  background: #140f0a;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 9px 11px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
}
input[type="color"] { height: 38px; padding: 2px; cursor: pointer; }
textarea { resize: vertical; }
.btn {
  border: none; cursor: pointer; padding: 11px 18px; border-radius: 10px;
  font-family: inherit; font-weight: 600; font-size: 14px;
  transition: transform .12s, opacity .12s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--accent), #b8730a); color: #1a120b; }
.btn-secondary { background: var(--panel2); color: var(--text); border: 1px solid var(--border); }
.actions { display: flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }
.canvas-wrap {
  background: #000; border-radius: 10px; overflow: hidden;
  border: 1px solid var(--border);
}
canvas { width: 100%; height: auto; display: block; }
.hint { font-size: 12px; color: var(--muted); margin-top: 8px; }
.footer { text-align: center; padding: 18px; color: var(--muted); font-size: 12px; border-top: 1px solid var(--border); }

@media (max-width: 1100px) {
  .layout { grid-template-columns: 1fr 1fr; }
  .preview-panel { grid-column: 1 / -1; }
}
@media (max-width: 720px) {
  .layout { grid-template-columns: 1fr; }
  .template-grid { grid-template-columns: repeat(4, 1fr); }
}