:root {
  --bg: #f7f4ff;
  --panel: #ffffff;
  --panel-2: #f2eefc;
  --border: #e5dff6;
  --text: #1d1738;
  --muted: #6d6790;
  --accent: #ff4f7b;      /* hot pink: record, "you" */
  --accent-ink: #ffffff;
  --purple: #7c5cff;
  --teal: #12c2a3;
  --yellow: #ffc233;
  --orange: #ff8a3d;
  --danger: #ff3b30;
  --ok: #0fa98a;
  --ref: #bfb6e6;
  --you: #ff4f7b;
  --shadow: 0 10px 30px rgba(60, 40, 120, .10);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; color: var(--text); }
body {
  min-height: 100vh; background: var(--bg);
  background-image:
    radial-gradient(900px 500px at -10% -10%, rgba(255, 79, 123, .18), transparent 60%),
    radial-gradient(800px 500px at 110% 0%, rgba(124, 92, 255, .20), transparent 60%),
    radial-gradient(700px 600px at 50% 110%, rgba(18, 194, 163, .16), transparent 60%),
    radial-gradient(500px 400px at 85% 80%, rgba(255, 194, 51, .18), transparent 60%);
  background-attachment: fixed;
}
button { font: inherit; }

.top {
  display: flex; align-items: baseline; gap: 24px;
  padding: 14px 24px; background: rgba(255,255,255,.75); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border); position: relative;
}
.top::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--orange), var(--yellow), var(--teal), var(--purple));
}
.brand { font-weight: 900; font-size: 22px; letter-spacing: -0.6px; color: inherit; text-decoration: none; }
.brand span {
  background: linear-gradient(90deg, var(--accent), var(--purple));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.back { color: var(--muted); font-size: 13px; text-decoration: none; font-weight: 600; }
.back:hover { color: var(--purple); }
.pack-title { font-weight: 700; }
.edit-link { margin-left: auto; align-self: center; white-space: nowrap; }
.btn.mini { padding: 5px 10px; font-size: 12px; border-radius: 8px; font-weight: 600; }
.pack-credit { color: var(--muted); font-size: 12px; }

.layout {
  display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(300px, 0.9fr) minmax(260px, 0.75fr);
  gap: 20px; padding: 20px 24px; max-width: 1440px; margin: 0 auto; align-items: start;
}
@media (max-width: 1100px) {
  .layout { grid-template-columns: minmax(0, 1.4fr) minmax(280px, 1fr); }
  .side { grid-column: 1 / -1; }
}
@media (max-width: 760px) { .layout { grid-template-columns: 1fr; } .side { grid-column: auto; } }

.video-wrap {
  position: relative; background: #0c0a1a; border-radius: 16px; overflow: hidden;
  aspect-ratio: 480 / 352; box-shadow: var(--shadow); border: 4px solid #fff;
}
.video-wrap video { width: 100%; height: 100%; display: block; object-fit: contain; }
.now-line {
  position: absolute; left: 0; right: 0; bottom: 0; z-index: 2;
  padding: 40px 20px 16px; pointer-events: none; color: #fff;
  background: linear-gradient(to top, rgba(10,8,25,.92) 0%, rgba(10,8,25,.7) 60%, rgba(10,8,25,0) 100%);
}
.now-who {
  display: flex; gap: 12px; align-items: baseline;
  color: var(--sp, var(--yellow)); font-size: 12px; font-weight: 800;
  text-transform: uppercase; letter-spacing: .1em; margin-bottom: 4px;
}
.now-cue { color: rgba(255,255,255,.7); font-weight: 600; letter-spacing: .04em; text-transform: none; }
.now-what {
  font-size: clamp(20px, 2.6vw, 30px); font-weight: 700; line-height: 1.25;
  text-shadow: 0 2px 8px rgba(0,0,0,.9); transition: color .15s;
}
.now-line.live .now-what { color: var(--yellow); }
.now-line.live .now-cue { color: #ff7b7b; }
.countdown {
  position: absolute; inset: 0; z-index: 1; display: grid; place-items: center;
  font-size: 140px; font-weight: 900; color: var(--yellow);
  background: rgba(20,10,50,.45); text-shadow: 0 6px 30px rgba(0,0,0,.8);
}
.rec-badge {
  position: absolute; top: 12px; right: 12px; z-index: 3; padding: 4px 10px; border-radius: 6px;
  background: var(--danger); color: #fff; font-weight: 800; font-size: 13px;
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { to { opacity: .35; } }

.perf {
  background: var(--panel); border: 1px solid var(--border); box-shadow: var(--shadow);
  border-radius: 16px; padding: 16px 18px; display: flex; flex-direction: column; gap: 12px;
}
.perf .text { margin: 0; }
.perf .controls { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.wave-box { margin-top: 4px; }
.current-head { display: flex; justify-content: space-between; color: var(--muted); font-size: 13px; }
.speaker { color: var(--sp, var(--purple)); font-weight: 800; text-transform: uppercase; letter-spacing: .06em; }
.text { font-size: 16px; color: var(--text); line-height: 1.35; margin: 6px 0 14px; }

.controls { display: flex; gap: 10px; flex-wrap: wrap; }
.btn {
  border: 1px solid var(--border); background: var(--panel-2); color: var(--text);
  padding: 10px 16px; border-radius: 10px; cursor: pointer; font-weight: 700;
  text-decoration: none; display: inline-block; text-align: center; transition: transform .1s, filter .1s;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); filter: brightness(1.03); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--orange)); color: var(--accent-ink);
  border-color: transparent; box-shadow: 0 6px 16px rgba(255, 79, 123, .35);
}
.btn.ghost { background: transparent; }
.btn.wide { width: 100%; }
.btn.recording { background: var(--danger); color: #fff; animation: pulse 1s infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(255,59,48,.18); } }
#btnListen { background: #efe9ff; color: var(--purple); border-color: #dcd2ff; }
#btnPlayMine { background: #e3f8f3; color: #0b8f75; border-color: #bfeee2; }

.score-card { border-top: 1px solid var(--border); padding-top: 12px; }
.score-main { display: flex; align-items: baseline; gap: 14px; }
.score-num {
  font-size: 52px; font-weight: 900; line-height: 1;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.score-label { font-size: 18px; font-weight: 700; }
.score-card[data-tier="0"] .score-num { background-image: linear-gradient(135deg, var(--yellow), var(--orange), var(--accent)); }
.score-card[data-tier="4"] .score-num, .score-card[data-tier="5"] .score-num { background-image: linear-gradient(135deg, var(--purple), var(--teal)); }
.confetti { position: fixed; inset: 0; z-index: 100; pointer-events: none; }
.score-parts { display: flex; gap: 18px; margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.score-parts b { color: var(--text); margin-left: 6px; }
#wave { width: 100%; aspect-ratio: 3 / 1; display: block; background: var(--panel-2); border-radius: 10px; }
.legend { color: var(--muted); font-size: 12px; margin-top: 6px; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin: 0 4px 0 8px; vertical-align: middle; }
.legend i.ref { background: var(--ref); } .legend i.you { background: var(--you); }
.hint { color: var(--muted); font-size: 13px; margin-top: 0; min-height: 18px; }
.hint.error { color: var(--danger); }

.side { display: flex; flex-direction: column; gap: 12px; }
.side-head { display: flex; justify-content: space-between; align-items: baseline; }
.side h2 { margin: 0; font-size: 16px; }
.progress { color: var(--muted); font-size: 13px; }
.line-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; max-height: 60vh; overflow: auto; }
.line-item {
  display: grid; grid-template-columns: 24px 1fr auto; gap: 10px; align-items: center;
  padding: 10px 12px 10px 10px; background: var(--panel); border: 1px solid var(--border);
  border-left: 4px solid var(--sp, var(--purple));
  border-radius: 10px; cursor: pointer; transition: transform .1s, box-shadow .1s;
}
.line-item:hover { transform: translateX(2px); box-shadow: var(--shadow); }
.line-item.active { background: #fff3f6; border-color: var(--accent); border-left-color: var(--sp, var(--purple)); }
.line-item .no { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.line-item .who { color: var(--sp, var(--purple)); font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; }
.line-item .what { font-size: 13px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.line-item .badge {
  font-size: 12px; font-weight: 800; padding: 3px 8px; border-radius: 999px;
  background: var(--panel-2); color: var(--muted); min-width: 36px; text-align: center;
}
.line-item .badge.done { background: #dff7f0; color: var(--ok); }

.export { border-top: 1px solid var(--border); padding-top: 12px; display: flex; flex-direction: column; gap: 10px; }
.export .btn.primary { background: linear-gradient(135deg, var(--purple), var(--teal)); box-shadow: 0 6px 16px rgba(124, 92, 255, .3); }
.export-status { color: var(--muted); font-size: 13px; min-height: 18px; }
.export-result video { width: 100%; border-radius: 10px; background: #000; margin-bottom: 8px; }

.foot {
  max-width: 1100px; margin: 0 auto; padding: 8px 24px 40px;
  color: var(--muted); font-size: 12px; line-height: 1.5; text-align: center;
}
.foot a { color: var(--muted); }