:root {
  --bg: #0d1117;
  --panel: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #8b949e;
  --accent: #39d353;
  --danger: #ff4d4d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans",
    "Yu Gothic", "Meiryo", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
header h1 { margin: 0; font-size: 1.4rem; }
.beta {
  font-size: 0.6em;
  background: var(--accent);
  color: #0d1117;
  padding: 2px 8px;
  border-radius: 10px;
  vertical-align: middle;
  font-weight: 700;
}
.sub { margin: 6px 0 0; color: var(--muted); font-size: 0.85rem; }

main {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding: 20px;
  max-width: 1100px;
  margin: 0 auto;
}
@media (min-width: 900px) {
  main { grid-template-columns: 1.3fr 1fr; }
}

/* ---- 映像ステージ ---- */
.video-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
}
#video, #overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform: scaleX(-1); /* 鏡像表示 */
}

.live-cue {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%) scale(0.8);
  background: rgba(255, 77, 77, 0.92);
  color: #fff;
  font-size: 2rem;
  font-weight: 800;
  padding: 8px 24px;
  border-radius: 12px;
  opacity: 0;
  transition: opacity 0.15s, transform 0.15s;
  pointer-events: none;
}
.live-cue.show { opacity: 1; transform: translateX(-50%) scale(1); }

/* ---- コントロール ---- */
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 14px;
}
.btn {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: filter 0.15s;
}
.btn:hover:not(:disabled) { filter: brightness(1.3); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn.primary { background: var(--accent); color: #0d1117; border-color: var(--accent); font-weight: 700; }
.btn.recording { background: var(--danger); color: #fff; border-color: var(--danger); }
.voice-toggle { color: var(--muted); font-size: 0.9rem; margin-left: auto; cursor: pointer; }

.status {
  margin-top: 12px;
  padding: 10px 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  min-height: 1.5em;
}

/* ---- 結果パネル ---- */
.panel h2 { font-size: 1.1rem; margin: 0 0 12px; }
.results { display: flex; flex-direction: column; gap: 14px; }
.placeholder, .note, .error { color: var(--muted); font-size: 0.85rem; }
.error { color: var(--danger); }

.overall { text-align: center; padding: 10px 0; }
.overall-score { font-size: 3rem; font-weight: 800; line-height: 1; }
.overall-label { color: var(--muted); font-size: 0.8rem; }

/* 技判別バナー */
.tech-banner {
  border-radius: 12px;
  padding: 14px 16px;
  text-align: center;
  border: 1px solid var(--border);
  background: linear-gradient(135deg, #1f2a3a, #161b22);
}
.tech-name { font-size: 1.6rem; font-weight: 800; }
.tech-conf { color: var(--muted); font-size: 0.8rem; }
.tech-feat { color: var(--muted); font-size: 0.7rem; margin-top: 4px; opacity: 0.8; }
.tech-geri .tech-name { color: #ff8c42; }
.tech-tsuki .tech-name { color: #4da3ff; }
.tech-uke .tech-name { color: #39d353; }
.tech-kata .tech-name { color: #c792ea; }
.tech-unknown .tech-name { color: var(--muted); }

.metric {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}
.metric.focus { border-color: var(--accent); }
.metric.dim { opacity: 0.55; }
.metric-head { display: flex; justify-content: space-between; align-items: baseline; }
.metric-label { font-weight: 600; }
.metric-score { font-weight: 800; font-size: 1.1rem; }
.bar {
  height: 8px;
  background: #21262d;
  border-radius: 4px;
  overflow: hidden;
  margin: 8px 0;
}
.bar-fill { height: 100%; border-radius: 4px; transition: width 0.4s; }
.metric-detail { font-size: 0.8rem; color: var(--muted); }
.metric-comment { font-size: 0.9rem; margin-top: 4px; }

/* お手本比較 */
.ref-box {
  margin-top: 14px;
  padding: 12px 14px;
  border: 1px dashed var(--border);
  border-radius: 10px;
}
.ref-title { font-weight: 600; margin-bottom: 8px; }
.ref-status { color: var(--muted); font-size: 0.8rem; margin-top: 8px; }
.ref-name-input {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 0.9rem;
  flex: 1 1 160px;
  min-width: 120px;
}
.ref-select-row { display: block; margin-top: 10px; color: var(--muted); font-size: 0.85rem; }
.ref-select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.9rem;
  margin-left: 6px;
  max-width: 100%;
}
.ghost-toggle { display: block; margin-top: 8px; color: var(--muted); font-size: 0.85rem; cursor: pointer; }
.ref-list { list-style: none; padding: 0; margin: 10px 0 0; display: flex; flex-direction: column; gap: 6px; }
.ref-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 0.85rem;
}
.ref-item-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ref-item-tag { font-size: 0.7rem; padding: 2px 8px; border-radius: 10px; background: #21262d; }
.ref-item-tag.tech-geri { color: #ff8c42; }
.ref-item-tag.tech-tsuki { color: #4da3ff; }
.ref-item-tag.tech-uke { color: #39d353; }
.ref-item-tag.tech-kata { color: #c792ea; }
.ref-del {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 2px 6px;
}
.ref-del:hover { color: var(--danger); }
.ref-empty { color: var(--muted); font-size: 0.8rem; list-style: none; }

.compare { margin-top: 20px; }
.cmp-overall { text-align: center; margin-bottom: 10px; }
.cmp-overall-score { font-size: 2.6rem; font-weight: 800; line-height: 1; }
.cmp-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
@media (min-width: 560px) {
  .cmp-grid { grid-template-columns: 1fr 1fr; }
}
.cmp-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
}
.cmp-head { display: flex; justify-content: space-between; font-size: 0.85rem; font-weight: 600; }
.cmp-score { font-weight: 800; }
.cmp-canvas { width: 100%; height: 140px; display: block; margin: 6px 0; }
.cmp-detail { color: var(--muted); font-size: 0.75rem; }

/* 履歴グラフ */
.history { grid-column: 1 / -1; }
.hist-head { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.hist-head h2 { margin: 0; }
.hist-controls { display: flex; gap: 8px; align-items: center; }
.hist-canvas {
  width: 100%;
  height: 200px;
  display: block;
  margin: 10px 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
}

footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px 40px;
  color: var(--muted);
  font-size: 0.85rem;
}
footer summary { cursor: pointer; padding: 8px 0; }
footer ul { margin: 8px 0; padding-left: 20px; }
.warn { color: #e3b341; }