_source/src/index.css

@import "tailwindcss";

:root {
  --bg: oklch(0.13 0.006 260);
  --bg-elev: oklch(0.17 0.008 260);
  --surface: oklch(0.22 0.01 260);
  --border: oklch(0.28 0.01 260);
  --text: oklch(0.95 0.005 260);
  --text-muted: oklch(0.65 0.01 260);
  --text-dim: oklch(0.45 0.008 260);
  --accent: oklch(0.72 0.17 305);
  --accent-glow: oklch(0.80 0.18 305);
  --accent-soft: oklch(0.72 0.17 305 / 0.15);
  --success: oklch(0.72 0.14 155);
  --danger: oklch(0.65 0.2 22);
}

html, body, #root {
  min-height: 100vh;
  margin: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Hanken Grotesk", system-ui, -apple-system, sans-serif;
  font-weight: 400;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
}

code, pre, .font-mono {
  font-family: "JetBrains Mono", ui-monospace, "Consolas", monospace;
}

/* Animated generation placeholder — pulse bars like ace-step-jam */
@keyframes wave-pulse {
  0%, 100% { transform: scaleY(0.3); opacity: 0.2; }
  50% { transform: scaleY(1); opacity: 0.6; }
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes soft-glow {
  0%, 100% { box-shadow: 0 0 20px oklch(0.72 0.17 305 / 0.2); }
  50% { box-shadow: 0 0 40px oklch(0.72 0.17 305 / 0.5); }
}

.pulse-bar {
  animation: wave-pulse 1.2s ease-in-out infinite;
  transform-origin: bottom;
}

.fade-in {
  animation: fade-in 0.3s ease-out;
}

.glow {
  animation: soft-glow 2s ease-in-out infinite;
}

/* Range slider styling */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  background: var(--border);
  border-radius: 4px;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  height: 16px;
  width: 16px;
  background: var(--accent);
  border-radius: 50%;
  margin-top: -6px;
  box-shadow: 0 0 12px oklch(0.72 0.17 305 / 0.4);
}
input[type="range"]:focus { outline: none; }

/* Scrollbar in textareas */
textarea::-webkit-scrollbar { width: 6px; }
textarea::-webkit-scrollbar-track { background: transparent; }
textarea::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
textarea::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }