:root {
  --bg: #101418;
  --panel: #1a2027;
  --panel2: #222a33;
  --text: #e8edf2;
  --muted: #9aa7b4;
  --accent: #e5484d;
  --primary: #3b82f6;
  --green: #46a758;
  --border: #2e3944;
  --t0: #9aa0a6;
  --t1: #e5484d;
  --t2: #46a758;
  --t3: #3b82f6;
  --t4: #8e4ec6;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "Hiragino Sans", "Yu Gothic UI", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  line-height: 1.6;
  max-width: 860px;
  margin: 0 auto;
  padding: 16px;
}
header { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px; margin-bottom: 12px; }
h1 { font-size: 1.4rem; }
h1 .accent { color: var(--accent); }
h2 { font-size: 1.1rem; margin: 18px 0 8px; }
.header-controls { display: flex; gap: 16px; font-size: 0.8rem; color: var(--muted); align-items: center; }
.header-controls select { max-width: 180px; background: var(--panel2); color: var(--text); border: 1px solid var(--border); border-radius: 6px; padding: 3px 6px; }
.header-controls input[type=range] { vertical-align: middle; width: 90px; }

nav#tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
nav#tabs button {
  background: var(--panel); color: var(--muted); border: 1px solid var(--border);
  padding: 8px 14px; border-radius: 20px; cursor: pointer; font-size: 0.9rem;
}
nav#tabs button.active { background: var(--primary); color: #fff; border-color: var(--primary); }

.cat-desc { color: var(--muted); font-size: 0.85rem; margin-bottom: 10px; }

.item-list { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.item-list .chip {
  background: var(--panel); border: 1px solid var(--border); color: var(--text);
  padding: 4px 10px; border-radius: 14px; cursor: pointer; font-size: 0.85rem;
}
.item-list .chip.active { background: var(--panel2); border-color: var(--primary); }
.item-list .chip .mini-score { font-size: 0.7rem; margin-left: 4px; }
.item-list .chip .chip-tag { font-size: 0.7rem; color: var(--muted); margin-right: 5px; }
.item-list .group-label { width: 100%; color: var(--muted); font-size: 0.75rem; margin-top: 4px; }

.card {
  background: var(--panel); border: 1px solid var(--border); border-radius: 14px;
  padding: 20px; text-align: center;
}
.card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.badge { background: var(--panel2); color: var(--muted); font-size: 0.72rem; padding: 2px 10px; border-radius: 10px; }
.tone-badges span {
  display: inline-block; min-width: 2em; padding: 1px 6px; margin-left: 4px;
  border-radius: 8px; font-size: 0.72rem; color: #fff;
}
.hz { font-size: 3rem; letter-spacing: 0.08em; line-height: 1.3; }
.hz .syl-hz { cursor: default; }
.reading { font-size: 1.15rem; margin-top: 6px; display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.reading .syl-read { display: inline-flex; flex-direction: column; align-items: center; min-width: 2.5em; }
.reading .zy { font-size: 1.05rem; }
.reading .py-s { font-size: 0.9rem; opacity: 0.9; }
.jp { color: var(--muted); margin-top: 8px; }
.note { margin-top: 10px; font-size: 0.8rem; color: #eab308; background: rgba(234,179,8,0.08); border-radius: 8px; padding: 6px 10px; }

.controls { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 18px; }
.btn {
  background: var(--panel2); color: var(--text); border: 1px solid var(--border);
  padding: 10px 18px; border-radius: 10px; cursor: pointer; font-size: 0.95rem;
}
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.rec { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.rec.recording { animation: pulse 1s infinite; }
.btn.danger { border-color: var(--accent); color: var(--accent); background: transparent; margin-top: 14px; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.55; } }
.rec-status { min-height: 1.4em; margin-top: 8px; font-size: 0.85rem; color: var(--muted); }

.result-panel { background: var(--panel); border: 1px solid var(--border); border-radius: 14px; padding: 16px; margin-top: 14px; }
.result-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: 8px; }
.score-big { font-size: 2.2rem; font-weight: bold; }
.score-grade { font-size: 1rem; color: var(--muted); }
canvas#pitchCanvas { width: 100%; height: auto; background: #0c1014; border-radius: 10px; }
.canvas-legend { display: flex; gap: 18px; font-size: 0.75rem; color: var(--muted); margin-top: 6px; }
.canvas-legend .line { display: inline-block; width: 22px; height: 0; vertical-align: middle; margin-right: 4px; }
.canvas-legend .line.solid { border-top: 3px solid #7dd3fc; }
.canvas-legend .line.dashed { border-top: 2px dashed #eab308; }

.syl-results { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
.syl-result {
  background: var(--panel2); border-radius: 10px; padding: 8px 12px; text-align: center;
  border: 1px solid var(--border); min-width: 84px;
}
.syl-result.ok { border-color: var(--green); }
.syl-result.ng { border-color: var(--accent); }
.syl-result .s-hz { font-size: 1.3rem; }
.syl-result .s-info { font-size: 0.72rem; color: var(--muted); }
.syl-result .s-verdict { font-size: 0.8rem; margin-top: 2px; }

.advice { margin-top: 12px; font-size: 0.88rem; background: rgba(59,130,246,0.08); border-radius: 10px; padding: 10px 14px; }
.advice:empty { display: none; }
.advice ul { margin-left: 1.2em; }

.nav-buttons { display: flex; justify-content: space-between; margin-top: 14px; }

.tone-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.tone-stat { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 10px; text-align: center; }
.tone-stat .ts-name { font-size: 0.8rem; }
.tone-stat .ts-acc { font-size: 1.5rem; font-weight: bold; }
.tone-stat .ts-n { font-size: 0.7rem; color: var(--muted); }
.tone-stat .bar { height: 6px; background: var(--panel2); border-radius: 3px; margin-top: 6px; overflow: hidden; }
.tone-stat .bar > div { height: 100%; border-radius: 3px; }

.progress-list { margin-top: 10px; display: flex; flex-direction: column; gap: 6px; }
.progress-row {
  display: flex; align-items: center; gap: 12px; background: var(--panel);
  border: 1px solid var(--border); border-radius: 10px; padding: 8px 14px; cursor: pointer;
}
.progress-row .pr-hz { font-size: 1.1rem; min-width: 7em; }
.progress-row .pr-score { font-weight: bold; min-width: 3.5em; text-align: right; }
.progress-row .pr-meta { color: var(--muted); font-size: 0.78rem; }

footer { margin-top: 24px; color: var(--muted); font-size: 0.75rem; }
footer .copyright { margin-top: 6px; opacity: 0.75; }
footer .copyright a { color: var(--primary); text-decoration: none; margin-left: 4px; }
footer .copyright a:hover { text-decoration: underline; }
.hidden { display: none !important; }

@media (max-width: 600px) {
  .hz { font-size: 2.2rem; }
  .tone-stats { grid-template-columns: repeat(2, 1fr); }
}