:root {
  --bg: #0f1217;
  --bg2: #161b23;
  --card: #1c232e;
  --card2: #222b38;
  --text: #e8edf4;
  --dim: #8b97a8;
  --accent: #5eead4;
  --accent2: #f471b5;
  --line: #2c3645;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: radial-gradient(1200px 600px at 80% -10%, #1b2533 0%, var(--bg) 55%);
  color: var(--text);
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Meiryo", sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(15, 18, 23, .7);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.logo { font-size: 22px; }

.live-badge {
  font-size: 11px;
  color: var(--dim);
  border: 1px solid var(--line);
  padding: 3px 8px;
  border-radius: 999px;
  letter-spacing: .08em;
}
.live-badge.on { color: #ff5d73; border-color: #ff5d73; animation: pulse 2s infinite; }
@keyframes pulse { 50% { opacity: .55; } }

.tabs { display: flex; gap: 6px; }
.tab {
  background: none; border: 1px solid transparent; color: var(--dim);
  padding: 6px 14px; border-radius: 8px; cursor: pointer; font-size: 14px;
}
.tab.active { color: var(--text); background: var(--card); border-color: var(--line); }

.clock { margin-left: auto; font-variant-numeric: tabular-nums; color: var(--dim); }

.banner {
  background: #3b2f18; color: #ffd97a; padding: 8px 22px; font-size: 13px;
  border-bottom: 1px solid #57441f;
}

main {
  flex: 1;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  grid-template-areas: "player side" "subs side";
  gap: 18px;
  padding: 22px;
  max-width: 1180px;
  width: 100%;
  margin: 0 auto;
}

.player-card { grid-area: player; }
.subtitles-card { grid-area: subs; }
.side { grid-area: side; display: flex; flex-direction: column; gap: 18px; }

.player-card, .subtitles-card, .side-card, .archive-card {
  background: linear-gradient(180deg, var(--card) 0%, var(--bg2) 100%);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 22px;
}

.corner-badge {
  display: inline-block;
  font-size: 12px;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 3px 12px;
  margin-bottom: 12px;
  letter-spacing: .05em;
}

#seg-title { font-size: 24px; line-height: 1.4; min-height: 2.8em; }

.bgm-credit { color: var(--dim); font-size: 13px; margin-top: 8px; min-height: 1.2em; }

.progress {
  margin-top: 18px;
  height: 6px;
  background: var(--line);
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 999px;
  transition: width .3s linear;
}
.progress-time {
  display: flex; justify-content: space-between;
  color: var(--dim); font-size: 12px; margin-top: 6px;
  font-variant-numeric: tabular-nums;
}

.controls { display: flex; align-items: center; gap: 18px; margin-top: 18px; flex-wrap: wrap; }

.play-btn {
  font-size: 16px;
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
  padding: 12px 28px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  color: #08312a;
  background: linear-gradient(135deg, var(--accent), #34d399);
  transition: transform .1s;
}
.play-btn:hover { transform: scale(1.03); }
.play-btn.playing { background: var(--card2); color: var(--text); border: 1px solid var(--line); }

.volume { display: flex; align-items: center; gap: 8px; color: var(--dim); }
.volume input { accent-color: var(--accent); width: 130px; }

h2 { font-size: 13px; color: var(--dim); letter-spacing: .1em; margin-bottom: 12px; }

.subtitles { min-height: 150px; display: flex; flex-direction: column; gap: 10px; }
.sub-line {
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--card2);
  color: var(--dim);
  font-size: 14px;
  line-height: 1.6;
  transition: all .2s;
}
.sub-line b { display: block; font-size: 11px; margin-bottom: 2px; }
.sub-line.p b { color: var(--accent); }
.sub-line.w b { color: var(--accent2); }
.sub-line.active { color: var(--text); background: #2a3547; transform: scale(1.01); }
.sub-music { color: var(--accent); font-size: 16px; padding: 20px; text-align: center; }
.sub-hint, .dim { color: var(--dim); font-size: 13px; }

.generating {
  color: var(--accent);
  font-size: 13px;
  padding: 8px 12px;
  background: rgba(94, 234, 212, .06);
  border: 1px dashed rgba(94, 234, 212, .35);
  border-radius: 10px;
  margin-bottom: 12px;
  min-height: 2.2em;
}

.kv { display: flex; justify-content: space-between; font-size: 13px; color: var(--dim); padding: 4px 0; }
.kv b { color: var(--text); font-variant-numeric: tabular-nums; }

.upcoming { list-style: none; display: flex; flex-direction: column; gap: 8px; font-size: 13px; }
.upcoming li { padding: 8px 12px; background: var(--card2); border-radius: 8px; }
.upcoming.history li { background: none; border: 1px solid var(--line); color: var(--dim); }

#tab-archive { grid-template-columns: 1fr; grid-template-areas: "player"; }
.archive-card { grid-area: player; }
.archive-layout { display: grid; grid-template-columns: 180px 1fr; gap: 18px; }
.archive-dates { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.archive-dates li {
  padding: 8px 12px; border-radius: 8px; cursor: pointer;
  background: var(--card2); font-size: 14px; font-variant-numeric: tabular-nums;
}
.archive-dates li.active { outline: 1px solid var(--accent); color: var(--accent); }
.archive-items { display: flex; flex-direction: column; gap: 6px; }
.archive-item {
  padding: 10px 14px; border-radius: 8px; cursor: pointer;
  background: var(--card2); font-size: 14px;
}
.archive-item:hover { background: #2a3547; }
.archive-item.active { outline: 1px solid var(--accent); }
.archive-item .time { color: var(--dim); margin-right: 8px; font-variant-numeric: tabular-nums; }
#archive-audio { width: 100%; margin-top: 16px; }

footer {
  padding: 12px 22px;
  color: var(--dim);
  font-size: 12px;
  border-top: 1px solid var(--line);
  text-align: center;
}

.hidden { display: none !important; }

@media (max-width: 860px) {
  main {
    grid-template-columns: 1fr;
    grid-template-areas: "player" "subs" "side";
    padding: 14px;
  }
  header { gap: 12px; flex-wrap: wrap; }
  .clock { display: none; }
}