:root {
  --background: 250 40% 97%;
  --foreground: 222 44% 13%;
  --primary: 262 83% 58%;
  --secondary: 189 94% 43%;
  --muted: 224 16% 43%;
  --destructive: 348 83% 47%;
  --border: 226 28% 88%;
  --card: 0 0% 100%;
  --shadow-sm: 0 6px 18px rgba(25, 32, 56, .07);
  --shadow-md: 0 16px 42px rgba(25, 32, 56, .11);
  --shadow-lg: 0 28px 80px rgba(25, 32, 56, .17);
  --transition-fast: 150ms ease;
  --transition-smooth: 260ms cubic-bezier(.2,.8,.2,1);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 26px;
}
.dark {
  --background: 224 39% 8%;
  --foreground: 220 28% 96%;
  --primary: 265 95% 70%;
  --secondary: 188 90% 55%;
  --muted: 220 16% 72%;
  --destructive: 350 90% 64%;
  --border: 224 22% 22%;
  --card: 224 34% 12%;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
button, input, textarea, select { font-size: max(16px, 1rem); }
.btn {
  min-height: 44px; padding: 10px 14px; border-radius: var(--radius-sm); border: 1px solid hsl(var(--border));
  background: hsl(var(--card)); color: hsl(var(--foreground)); box-shadow: var(--shadow-sm); transition: var(--transition-smooth); font-weight: 750;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-primary { background: hsl(var(--primary)); color: white; border-color: hsl(var(--primary)); }
.btn-danger { background: hsl(var(--destructive)); color: white; border-color: hsl(var(--destructive)); }
.panel { background: hsl(var(--card)); border: 1px solid hsl(var(--border)); border-radius: var(--radius-lg); padding: 14px; box-shadow: var(--shadow-md); height: fit-content; }
.section-title { font-size: .9rem; letter-spacing: .08em; text-transform: uppercase; color: hsl(var(--muted)); font-weight: 900; margin-bottom: 10px; }
.block-card {
  min-height: 54px; display: flex; align-items: center; justify-content: center; cursor: grab; user-select: none;
  border: 1px dashed hsl(var(--primary)); color: hsl(var(--primary)); background: hsl(var(--primary) / .08);
  border-radius: var(--radius-md); font-weight: 850; text-transform: capitalize; transition: var(--transition-smooth);
}
.block-card:hover { transform: translateY(-2px); background: hsl(var(--primary) / .14); }
.wide-btn {
  width: 100%; min-height: 48px; display: flex; align-items: center; gap: 10px; padding: 10px 12px; border-radius: var(--radius-md);
  border: 1px solid hsl(var(--border)); background: hsl(var(--background)); color: hsl(var(--foreground)); font-weight: 760; transition: var(--transition-fast);
}
.wide-btn:hover { border-color: hsl(var(--primary)); }
.swatch { width: 28px; height: 28px; border-radius: 999px; box-shadow: inset 0 0 0 2px rgba(255,255,255,.5); }
.canvas-shell { background: linear-gradient(135deg, hsl(var(--secondary) / .08), hsl(var(--primary) / .08)); border-radius: var(--radius-lg); padding: 14px; min-height: 680px; box-shadow: var(--shadow-md); }
.canvas { width: 100%; min-height: 640px; margin: 0 auto; background: white; border: 2px dashed hsl(var(--border)); border-radius: var(--radius-lg); padding: 18px; transition: var(--transition-smooth); }
.empty { min-height: 180px; display: flex; align-items: center; justify-content: center; text-align: center; color: hsl(var(--muted)); border: 1px dashed hsl(var(--border)); border-radius: var(--radius-md); padding: 20px; background: hsl(var(--background) / .7); }
.empty.small { min-height: 120px; }
.canvas-item { position: relative; border: 2px solid transparent; border-radius: var(--radius-md); margin: 8px 0; padding-top: 24px; transition: var(--transition-fast); }
.canvas-item:hover, .canvas-item.selected { border-color: hsl(var(--primary)); box-shadow: 0 0 0 4px hsl(var(--primary) / .10); }
.drag-handle { position: absolute; top: 2px; left: 8px; font-size: 12px; line-height: 18px; padding: 0 8px; border-radius: 999px; background: hsl(var(--foreground)); color: white; opacity: .72; cursor: grab; z-index: 2; }
.field { display: grid; gap: 6px; color: hsl(var(--muted)); font-weight: 800; }
.input { width: 100%; min-height: 44px; border: 1px solid hsl(var(--border)); border-radius: var(--radius-sm); padding: 10px 12px; background: hsl(var(--background)); color: hsl(var(--foreground)); outline: none; }
.input:focus { border-color: hsl(var(--primary)); box-shadow: 0 0 0 4px hsl(var(--primary) / .13); }
.pill { display: inline-flex; align-items: center; min-height: 36px; padding: 6px 12px; border-radius: 999px; background: hsl(var(--primary) / .12); color: hsl(var(--primary)); font-weight: 900; }
.bottom-tab { min-height: 48px; border-radius: var(--radius-md); text-transform: capitalize; font-weight: 900; color: hsl(var(--muted)); }
.bottom-tab.active { background: hsl(var(--primary)); color: white; }
.embed-card { padding: 22px; border-radius: 18px; background: linear-gradient(135deg, rgba(124,58,237,.12), rgba(6,182,212,.12)); font-weight: 800; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes riseIn { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 767px) {
  .panel { min-height: calc(100vh - 150px); }
  .canvas-shell { min-height: calc(100vh - 150px); padding: 8px; }
  .canvas { min-height: calc(100vh - 180px); padding: 10px; }
}