:root {
  --bg: #0c0b0a;
  --panel: #161310;
  --line: rgba(232, 195, 106, 0.18);
  --gold: #e8c36a;
  --gold-2: #c9a24a;
  --cream: #f4efe6;
  --mute: #b7aea0;
  --danger: #e07a6a;
  --ok: #8fbf9f;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: Outfit, system-ui, sans-serif;
  background: radial-gradient(1200px 600px at 10% -10%, #2a2118 0%, var(--bg) 55%);
  color: var(--cream);
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.07;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.55'/%3E%3C/svg%3E");
  z-index: 0;
}

.top, main, footer { position: relative; z-index: 1; }
.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 28px 8px;
  gap: 16px;
}
.brand { display: flex; gap: 12px; align-items: center; }
.brand strong { display: block; font-family: Fraunces, serif; font-size: 22px; letter-spacing: 0.02em; }
.brand small { color: var(--mute); }
.mark {
  width: 36px; height: 36px; border-radius: 50%;
  background: conic-gradient(from 200deg, var(--gold), #6a4b1e, var(--gold));
  box-shadow: inset 0 0 0 6px #0c0b0a, 0 0 0 1px var(--gold-2);
}
.status { color: var(--mute); font-size: 13px; margin: 0; }

main { max-width: 860px; margin: 0 auto; padding: 12px 20px 64px; }
.steps {
  display: flex; gap: 8px; list-style: none; padding: 0; margin: 8px 0 22px;
}
.steps li {
  flex: 1; text-align: center; font-size: 13px; color: var(--mute);
  border-bottom: 2px solid #2a261f; padding-bottom: 8px;
}
.steps li.on { color: var(--gold); border-color: var(--gold); }

.panel {
  background: color-mix(in srgb, var(--panel) 88%, black);
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 28px;
  box-shadow: 0 30px 80px rgba(0,0,0,.35);
}
h1, h2 { font-family: Fraunces, serif; font-weight: 650; margin: 0 0 10px; line-height: 1.2; }
.lead { color: var(--mute); margin: 0 0 22px; line-height: 1.55; }
.hidden { display: none !important; }

.drop {
  display: block;
  border: 1px dashed color-mix(in srgb, var(--gold) 45%, transparent);
  border-radius: 18px;
  min-height: 180px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  background: #100e0c;
}
.drop:hover { border-color: var(--gold); }
#wave { width: 100%; height: 88px; display: block; opacity: 0.85; }
.drop-copy {
  position: absolute; inset: 88px 0 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 6px; padding-bottom: 18px;
}
.drop-copy span { color: var(--mute); font-size: 13px; }
.hint { min-height: 1.2em; color: var(--danger); font-size: 14px; }

.analyzing { display: flex; gap: 14px; align-items: center; padding: 20px 0; }
.spinner {
  width: 22px; height: 22px; border-radius: 50%;
  border: 2px solid #3a342c; border-top-color: var(--gold);
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.ai-note {
  background: rgba(232,195,106,.08);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  margin: 0 0 12px;
  line-height: 1.5;
}
.chords {
  color: var(--gold);
  font-size: 14px;
  margin: 0 0 18px;
  line-height: 1.45;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 22px;
}
.stat {
  background: #100e0c;
  border-radius: 14px;
  padding: 12px;
  border: 1px solid #2a261f;
}
.stat b { display: block; font-family: Fraunces, serif; font-size: 18px; }
.stat span { color: var(--mute); font-size: 12px; }

fieldset.instruments { border: 0; padding: 0; margin: 0 0 18px; }
legend { font-family: Fraunces, serif; font-size: 20px; margin-bottom: 6px; }
.legend-help { color: var(--mute); margin: 0 0 12px; font-size: 14px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid #2a261f; background: #100e0c;
  border-radius: 999px; padding: 8px 12px; cursor: pointer; font-size: 14px;
}
.chip input { accent-color: var(--gold); }
.chip.hit { border-color: color-mix(in srgb, var(--gold) 55%, #2a261f); }
.chip small { color: var(--mute); }

.grid-form {
  display: grid;
  grid-template-columns: 1fr 1fr 1.4fr;
  gap: 12px;
  margin-bottom: 14px;
}
label { display: block; font-size: 13px; color: var(--mute); }
input[type="number"], input[type="text"], select {
  width: 100%; margin-top: 6px; border-radius: 12px; border: 1px solid #2a261f;
  background: #100e0c; color: var(--cream); padding: 10px 12px; font: inherit;
}
.check-row {
  display: flex; align-items: center; gap: 8px; color: var(--cream);
  margin-top: 22px; font-size: 14px;
}
.block { display: block; margin-bottom: 18px; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 8px; }
.btn {
  border: 0; cursor: pointer; border-radius: 999px; padding: 12px 18px;
  font: 600 14px Outfit, sans-serif; text-decoration: none; display: inline-flex;
  align-items: center; justify-content: center;
}
.btn.primary { background: var(--gold); color: #1a140c; }
.btn.ghost { background: transparent; color: var(--cream); border: 1px solid #3a342c; }
.btn.tiny { padding: 6px 10px; font-size: 12px; background: #241f19; color: var(--cream); }
.btn:disabled { opacity: 0.5; cursor: wait; }
.err { color: var(--danger); min-height: 1.2em; }

audio { width: 100%; margin: 8px 0 16px; }
.prompt-box {
  margin-top: 22px; background: #100e0c; border-radius: 14px; border: 1px solid #2a261f;
  padding: 12px 14px;
}
.prompt-head { display: flex; justify-content: space-between; align-items: center; color: var(--mute); font-size: 13px; }
pre {
  white-space: pre-wrap; font-size: 13px; line-height: 1.45; margin: 10px 0 0;
  color: #efe6d2; font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
footer { text-align: center; color: #7d7568; font-size: 12px; padding: 0 20px 28px; }

@media (max-width: 720px) {
  .stats, .grid-form { grid-template-columns: 1fr 1fr; }
  .check-row { grid-column: 1 / -1; margin-top: 8px; }
  .top { flex-direction: column; align-items: flex-start; }
}