/* ==========================================================================
   Guitar Play Styles — namespaced under .guitar-play-page / .game-screen
   ========================================================================== */

/* Guitar play — 로컬 alias 는 tokens.css 의 game/neon 도메인을 재명명.
   자기 참조(--neon-cyan: var(--neon-cyan) 등) 는 cascade 로 글로벌 값을
   그대로 상속하므로 불필요 → 제거. 이름이 바뀌는 것만 alias 유지. */
.guitar-play-page,
.game-screen {
  --bg-deep: var(--game-bg-abyss);
  --bg-rg: var(--game-bg-night);
  --bg-card-rg: var(--game-bg-card);
  --bg-surface: var(--game-bg-dawn);
  --border-rg: var(--game-bg-mid);
  --border-glow: var(--game-bg-lift);
  --text-rg: var(--game-text-cool);
  --text-dim: var(--game-text-muted);
  --text-bright: var(--game-text-cold);
  --neon-gold: var(--neon-amber);
  --neon-blue: var(--neon-blue-deep);
  --neon-red: var(--neon-pink);
  --neon-purple: var(--neon-violet);

  font-family: 'Noto Sans KR', sans-serif;
  color: var(--text-rg);
}

/* --- Atmosphere background --- */
.guitar-play-page .atmosphere {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 50% 60% at 10% 50%, color-mix(in srgb, var(--neon-magenta) 3%, transparent) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 90% 60%, color-mix(in srgb, var(--neon-blue-deep) 4%, transparent) 0%, transparent 70%);
}

/* --- Select screen (warm theme override) --- */
.guitar-play-page .select-screen {
  max-width: 580px;
  margin: 0 auto;
  padding: 32px 24px;
  position: relative;
  z-index: 5;
  color: var(--text-primary);
}

/* Override dark theme for select screen */
.guitar-play-page .select-screen,
.guitar-play-page .select-screen * {
  font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

/* Hide atmosphere on select screen — show on game */
.guitar-play-page:has(.select-screen:not([style*="display: none"])) .atmosphere {
  display: none;
}

/* --- Header --- */
.gp-header {
  margin-bottom: 20px;
}
.gp-header h2 {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin: 0 0 12px;
}
.gp-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}
.gp-mic-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 5px 12px 5px 8px;
  background: var(--surface-sunken);
  border-radius: 20px;
  border: none;
  cursor: pointer;
  transition: background 120ms, color 120ms;
}
.gp-mic-pill:hover {
  background: var(--overlay-hover-warm);
}
.gp-mic-pill.is-on {
  color: var(--text-secondary);
}
.gp-mic-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--ring-warm);
  transition: background 200ms;
}
.gp-mic-pill.is-on .gp-mic-dot {
  background: var(--status-success);
}
.gp-header-actions {
  display: flex;
  gap: 4px;
}
.gp-add-btn {
  font-size: 13px;
  font-weight: 500;
  color: var(--brand-default);
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 8px;
  transition: background 120ms;
}
.gp-add-btn:hover {
  background: var(--overlay-hover-soft);
}

/* --- Adding song progress --- */
.gp-adding-bar {
  padding: 12px 16px;
  background: var(--surface-sunken);
  border-radius: 10px;
  margin-bottom: 12px;
}
.gp-adding-text {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.gp-adding-track {
  height: 4px;
  background: var(--border-subtle);
  border-radius: 2px;
  overflow: hidden;
}
.gp-adding-fill {
  height: 100%;
  background: var(--brand-default);
  border-radius: 2px;
  transition: width 0.3s;
}

/* --- Song list --- */
.gp-song-list {
  list-style: none;
  margin: 0;
  padding: 8px 0;
}

/* --- Song item --- */
.gp-song-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 12px;
  border-radius: 14px;
  cursor: pointer;
  transition: background 150ms var(--ease-default);
  position: relative;
}
.gp-song-item + .gp-song-item {
  border-top: 1px solid color-mix(in srgb, var(--ink-950) 4%, transparent);
}
.gp-song-item:hover {
  background: var(--overlay-hover-soft);
}
.gp-song-item:hover + .gp-song-item {
  border-top-color: transparent;
}
.gp-song-item.is-selected {
  background: var(--overlay-brand-soft);
}
.gp-song-item.is-selected + .gp-song-item {
  border-top-color: transparent;
}

/* --- Song art (initial letter) --- */
.gp-song-art {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  color: var(--white-pure);
  flex-shrink: 0;
  letter-spacing: -0.02em;
}

/* --- Song info --- */
.gp-song-info {
  flex: 1;
  min-width: 0;
}
.gp-song-title {
  font-size: 15px;
  font-weight: 550;
  color: var(--text-primary);
  margin-bottom: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.gp-song-artist {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 4px;
}
.gp-song-meta {
  display: flex;
  gap: 6px;
  align-items: center;
}
.gp-tag {
  font-size: 11px;
  font-weight: 550;
  padding: 1px 7px;
  border-radius: 5px;
}
.gp-tag-bpm { background: color-mix(in srgb, var(--chart-blue) 10%, var(--surface-sunken)); color: var(--chart-blue); }
.gp-tag-easy { background: color-mix(in srgb, var(--status-success) 10%, var(--surface-sunken)); color: var(--status-success); }
.gp-tag-medium { background: color-mix(in srgb, var(--status-warning) 10%, var(--surface-sunken)); color: var(--status-warning); }
.gp-tag-hard { background: color-mix(in srgb, var(--status-error) 10%, var(--surface-sunken)); color: var(--status-error); }
.gp-tag-dur { color: var(--text-muted); font-weight: 400; }

/* --- Play button (selected song only) --- */
.gp-play-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--brand-default);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 2px 8px color-mix(in srgb, var(--brand-default) 25%, transparent);
  transition: transform 150ms, box-shadow 150ms;
}
.gp-play-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 4px 16px color-mix(in srgb, var(--brand-default) 35%, transparent);
}
.gp-play-btn svg {
  width: 16px;
  height: 16px;
  margin-left: 2px;
}

/* --- Chevron (non-selected) --- */
.gp-chevron {
  color: var(--ring-warm);
  font-size: 20px;
  font-weight: 300;
  flex-shrink: 0;
  line-height: 1;
}

/* --- Delete button --- */
.gp-delete-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: background 120ms, color 120ms;
  position: absolute;
  right: 4px;
  top: 4px;
}
.gp-delete-btn:hover {
  background: var(--overlay-hover-soft);
  color: var(--status-error);
}

/* --- Old select screen (dead code, kept for file-browser-modal compat) --- */

.guitar-play-page .section-title {
  font-family: 'Oxanium', sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--text-dim);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.guitar-play-page .section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border-rg), transparent);
}

/* --- Mic bar --- */
.guitar-play-page .mic-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 20px;
  background: var(--bg-card-rg);
  border: 1px solid var(--border-rg);
  border-radius: 10px;
  margin-bottom: 28px;
}

.guitar-play-page .mic-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.guitar-play-page .mic-dot.active {
  background: var(--neon-green);
  box-shadow: 0 0 8px var(--neon-green);
  animation: guitar-pulse 2s ease infinite;
}

.guitar-play-page .mic-dot.inactive {
  background: var(--text-dim);
}

@keyframes guitar-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.guitar-play-page .mic-label {
  font-size: 13px;
  color: var(--text-dim);
  flex: 1;
}

.guitar-play-page .mic-level {
  width: 120px;
  height: 6px;
  background: var(--bg-deep);
  border-radius: 3px;
  overflow: hidden;
}

.guitar-play-page .mic-level-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--neon-green), var(--neon-cyan));
  border-radius: 3px;
  transition: width 0.08s;
}

.guitar-play-page .btn-mic {
  font-family: 'Oxanium', sans-serif;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 5px;
  border: 1px solid color-mix(in srgb, var(--neon-green) 30%, transparent);
  background: color-mix(in srgb, var(--neon-green) 8%, transparent);
  color: var(--neon-green);
  cursor: pointer;
}

/* --- Song grid --- */
.guitar-play-page .song-grid {
  display: grid;
  gap: 12px;
}

.guitar-play-page .song-card {
  display: grid;
  grid-template-columns: 56px 1fr auto;
  align-items: center;
  gap: 18px;
  padding: 16px 20px;
  background: var(--bg-card-rg);
  border: 1px solid var(--border-rg);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}

.guitar-play-page .song-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.3s;
  background: linear-gradient(135deg, color-mix(in srgb, var(--neon-cyan) 4%, transparent), color-mix(in srgb, var(--neon-magenta) 3%, transparent));
  pointer-events: none;
}

.guitar-play-page .song-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-1px);
}

.guitar-play-page .song-card:hover::before {
  opacity: 1;
}

.guitar-play-page .song-card.selected {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 20px color-mix(in srgb, var(--neon-cyan) 8%, transparent);
}

.guitar-play-page .song-art {
  width: 56px;
  height: 56px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  position: relative;
  z-index: 1;
}

.guitar-play-page .song-info {
  position: relative;
  z-index: 1;
}

.guitar-play-page .song-title {
  font-family: 'Oxanium', sans-serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 4px;
}

.guitar-play-page .song-artist {
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.guitar-play-page .song-meta {
  display: flex;
  gap: 12px;
}

.guitar-play-page .song-tag {
  font-family: 'Oxanium', sans-serif;
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}

.guitar-play-page .tag-bpm { background: color-mix(in srgb, var(--neon-blue-deep) 12%, transparent); color: var(--neon-blue); }
.guitar-play-page .tag-easy { background: color-mix(in srgb, var(--neon-green) 10%, transparent); color: var(--neon-green); }
.guitar-play-page .tag-medium { background: color-mix(in srgb, var(--neon-orange) 10%, transparent); color: var(--neon-orange); }
.guitar-play-page .tag-hard { background: color-mix(in srgb, var(--neon-pink) 10%, transparent); color: var(--neon-red); }
.guitar-play-page .tag-duration { background: color-mix(in srgb, var(--game-text-muted) 15%, transparent); color: var(--text-dim); }

.guitar-play-page .btn-play {
  font-family: 'Oxanium', sans-serif;
  font-size: 13px;
  font-weight: 700;
  padding: 10px 24px;
  border-radius: 8px;
  border: none;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue));
  color: var(--bg-deep);
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.guitar-play-page .btn-play:hover {
  box-shadow: 0 0 24px color-mix(in srgb, var(--neon-cyan) 35%, transparent);
  transform: scale(1.03);
}

/* --- Game screen (fullscreen overlay) --- */
.game-screen {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--ink-950);
  display: flex;
  flex-direction: column;
}

.game-screen .game-hud {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 28px;
  background: color-mix(in srgb, var(--ink-950) 85%, transparent);
  border-bottom: 1px solid color-mix(in srgb, var(--game-bg-mid) 40%, transparent);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.game-screen .hud-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.game-screen .hud-song {
  font-family: 'Oxanium', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-rg);
}

.game-screen .hud-progress {
  width: 180px;
  height: 3px;
  background: color-mix(in srgb, var(--text-inverse) 10%, transparent);
  border-radius: 2px;
  overflow: hidden;
}

.game-screen .hud-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--neon-cyan), var(--neon-magenta));
  border-radius: 2px;
  transition: width 0.3s linear;
}

.game-screen .hud-center {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.game-screen .hud-score {
  font-family: 'Oxanium', sans-serif;
  font-size: 32px;
  font-weight: 800;
  color: var(--text-bright);
  letter-spacing: 2px;
  min-width: 160px;
  text-align: center;
}

.game-screen .hud-combo {
  font-family: 'Oxanium', sans-serif;
  font-size: 16px;
  font-weight: 700;
  color: var(--neon-gold);
  text-shadow: 0 0 10px color-mix(in srgb, var(--neon-amber) 50%, transparent);
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.2s;
}

.game-screen .hud-combo.visible {
  opacity: 1;
  transform: scale(1);
}

.game-screen .btn-pause {
  font-family: 'Oxanium', sans-serif;
  font-size: 12px;
  padding: 6px 14px;
  border-radius: 5px;
  border: 1px solid color-mix(in srgb, var(--text-inverse) 15%, transparent);
  background: color-mix(in srgb, var(--text-inverse) 5%, transparent);
  color: color-mix(in srgb, var(--text-inverse) 50%, transparent);
  cursor: pointer;
}

.game-screen .game-canvas-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
}

.game-screen .game-canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* --- Judgment display --- */
.game-screen .judgment-display {
  position: absolute;
  left: 50%;
  top: 35%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 20;
}

.game-screen .judgment-text {
  font-family: 'Oxanium', sans-serif;
  font-size: 44px;
  font-weight: 800;
  letter-spacing: 6px;
  text-transform: uppercase;
  opacity: 0;
}

.game-screen .judgment-text.show {
  animation: guitar-judgment-pop 0.55s cubic-bezier(0.16,1,0.3,1) forwards;
}

.game-screen .judgment-text.perfect {
  color: var(--neon-gold);
  text-shadow: 0 0 40px color-mix(in srgb, var(--neon-amber) 80%, transparent), 0 2px 20px color-mix(in srgb, var(--ink-950) 50%, transparent);
}

.game-screen .judgment-text.great {
  color: var(--neon-green);
  text-shadow: 0 0 30px color-mix(in srgb, var(--neon-green) 70%, transparent), 0 2px 20px color-mix(in srgb, var(--ink-950) 50%, transparent);
}

.game-screen .judgment-text.good {
  color: var(--neon-blue);
  text-shadow: 0 0 24px color-mix(in srgb, var(--neon-blue-deep) 60%, transparent), 0 2px 20px color-mix(in srgb, var(--ink-950) 50%, transparent);
}

.game-screen .judgment-text.miss {
  color: var(--neon-red);
  text-shadow: 0 0 24px color-mix(in srgb, var(--neon-pink) 60%, transparent), 0 2px 20px color-mix(in srgb, var(--ink-950) 50%, transparent);
}

@keyframes guitar-judgment-pop {
  0%   { opacity: 0; transform: translateY(30px) scale(0.6); }
  15%  { opacity: 1; transform: translateY(-10px) scale(1.15); }
  30%  { transform: translateY(0) scale(1); }
  100% { opacity: 0; transform: translateY(-40px) scale(0.85); }
}

/* --- Countdown overlay --- */
.game-screen .countdown-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  background: color-mix(in srgb, var(--ink-950) 75%, transparent);
  backdrop-filter: blur(6px);
}

.game-screen .countdown-number {
  font-family: 'Oxanium', sans-serif;
  font-size: 140px;
  font-weight: 800;
  color: var(--neon-cyan);
  text-shadow: 0 0 80px color-mix(in srgb, var(--neon-cyan) 60%, transparent);
  animation: guitar-countdown-pop 0.9s ease-out forwards;
}

@keyframes guitar-countdown-pop {
  0%  { opacity: 0; transform: scale(2.5); }
  25% { opacity: 1; transform: scale(0.9); }
  50% { transform: scale(1); }
  100%{ opacity: 0; transform: scale(0.7); }
}

/* --- Results screen --- */
.guitar-play-page .results-screen {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 24px;
  position: relative;
  z-index: 5;
}

.guitar-play-page .results-grade {
  text-align: center;
  margin-bottom: 40px;
}

.guitar-play-page .grade-letter {
  font-family: 'Oxanium', sans-serif;
  font-size: 96px;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 8px;
}

.guitar-play-page .grade-S { color: var(--neon-gold);  text-shadow: 0 0 40px color-mix(in srgb, var(--neon-amber) 50%, transparent); }
.guitar-play-page .grade-A { color: var(--neon-green); text-shadow: 0 0 40px color-mix(in srgb, var(--neon-green) 40%, transparent); }
.guitar-play-page .grade-B { color: var(--neon-cyan);  text-shadow: 0 0 30px color-mix(in srgb, var(--neon-cyan) 40%, transparent); }
.guitar-play-page .grade-C { color: var(--neon-orange); text-shadow: 0 0 30px color-mix(in srgb, var(--neon-orange) 40%, transparent); }

.guitar-play-page .grade-score {
  font-family: 'Oxanium', sans-serif;
  font-size: 42px;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: 3px;
}

.guitar-play-page .grade-pct {
  font-size: 16px;
  color: var(--text-dim);
  margin-top: 6px;
}

/* --- Judgment bars --- */
.guitar-play-page .judgment-bars {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 32px;
}

.guitar-play-page .jbar-row {
  display: grid;
  grid-template-columns: 80px 1fr 48px;
  align-items: center;
  gap: 14px;
}

.guitar-play-page .jbar-label {
  font-family: 'Oxanium', sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-align: right;
}

.guitar-play-page .jbar-track {
  height: 22px;
  background: var(--bg-surface);
  border-radius: 4px;
  overflow: hidden;
}

.guitar-play-page .jbar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.8s cubic-bezier(0.16,1,0.3,1);
}

.guitar-play-page .jbar-count {
  font-family: 'Oxanium', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-rg);
  text-align: right;
}

/* --- Stats grid --- */
.guitar-play-page .stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  margin-bottom: 32px;
}

.guitar-play-page .stat-box {
  background: var(--bg-card-rg);
  border: 1px solid var(--border-rg);
  border-radius: 10px;
  padding: 18px 14px;
  text-align: center;
}

.guitar-play-page .stat-value {
  font-family: 'Oxanium', sans-serif;
  font-size: 26px;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 4px;
}

.guitar-play-page .stat-label {
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* --- Result action buttons --- */
.guitar-play-page .results-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.guitar-play-page .btn-result {
  font-family: 'Oxanium', sans-serif;
  font-size: 14px;
  font-weight: 700;
  padding: 12px 32px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 1px;
}

.guitar-play-page .btn-retry {
  border: none;
  background: linear-gradient(135deg, var(--neon-cyan), var(--neon-blue));
  color: var(--bg-deep);
}

.guitar-play-page .btn-retry:hover {
  box-shadow: 0 0 24px color-mix(in srgb, var(--neon-cyan) 35%, transparent);
}

.guitar-play-page .btn-back {
  border: 1px solid var(--border-rg);
  background: transparent;
  color: var(--text-dim);
}

.guitar-play-page .btn-back:hover {
  border-color: var(--text-dim);
  color: var(--text-rg);
}

/* --- Calibrate screen --- */
.guitar-play-page .calibrate-screen {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 24px;
  position: relative;
  z-index: 5;
}

.guitar-play-page .cal-beats {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin: 24px 0;
}

.guitar-play-page .cal-beat {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 2px solid var(--border-rg);
  transition: all 0.2s;
}

.guitar-play-page .cal-beat.hit {
  background: var(--neon-cyan);
  border-color: var(--neon-cyan);
  box-shadow: 0 0 12px color-mix(in srgb, var(--neon-cyan) 50%, transparent);
}

.guitar-play-page .cal-beat.current {
  border-color: var(--neon-gold);
  box-shadow: 0 0 12px color-mix(in srgb, var(--neon-amber) 40%, transparent);
}

.guitar-play-page .btn-calibrate {
  font-family: 'Oxanium', sans-serif;
  font-size: 13px;
  font-weight: 700;
  padding: 10px 24px;
  border-radius: 8px;
  border: 1px solid color-mix(in srgb, var(--neon-cyan) 30%, transparent);
  background: color-mix(in srgb, var(--neon-cyan) 8%, transparent);
  color: var(--neon-cyan);
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 1px;
}

.guitar-play-page .btn-calibrate:hover {
  background: color-mix(in srgb, var(--neon-cyan) 15%, transparent);
  box-shadow: 0 0 16px color-mix(in srgb, var(--neon-cyan) 20%, transparent);
}

/* --- Animations --- */
.guitar-play-page .fade-in {
  animation: guitar-fade-in 0.5s ease forwards;
}

@keyframes guitar-fade-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.guitar-play-page .stagger-1 { animation-delay: .05s; }
.guitar-play-page .stagger-2 { animation-delay: .1s; }
.guitar-play-page .stagger-3 { animation-delay: .15s; }
.guitar-play-page .stagger-4 { animation-delay: .2s; }
.guitar-play-page .stagger-5 { animation-delay: .25s; }

/* x-cloak within guitar play page */
.guitar-play-page [x-cloak] { display: none !important; }

/* --- Mobile responsive --- */
@media (max-width: 768px) {
  .guitar-play-page .select-screen { padding: 20px 12px; }
  .guitar-play-page .mic-bar { flex-wrap: wrap; gap: 10px; padding: 12px 14px; }
  .guitar-play-page .mic-level { width: 100%; }

  .guitar-play-page .song-card {
    grid-template-columns: 44px 1fr;
    gap: 12px;
    padding: 14px 14px;
  }
  .guitar-play-page .song-card .song-actions {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
  }
  .guitar-play-page .song-art { width: 44px; height: 44px; font-size: 20px; }
  .guitar-play-page .song-meta { flex-wrap: wrap; gap: 6px; }

  .guitar-play-page .results-screen { padding: 28px 16px; }
  .guitar-play-page .stats-grid { grid-template-columns: 1fr 1fr; }
  .guitar-play-page .grade-letter { font-size: 72px; }
  .guitar-play-page .grade-score { font-size: 32px; }

  .song-header { flex-wrap: wrap; gap: 8px; }
}

/* ==========================================================================
   Tuner — Apple HIG-informed design
   Clarity: 게이지가 히어로, 나머지는 supporting.
   Deference: UI chrome 최소화, 콘텐츠 우선.
   Consistency: 8pt grid, 중앙축 정렬, 균일한 여백 리듬.
   ========================================================================== */

.tuner-page {
  display: flex;
  justify-content: center;
  padding: 24px 16px 48px;
}

.tuner-surface {
  width: 100%;
  max-width: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;  /* 개별 margin으로 정밀 제어 */
}

/* --- Tuning picker — HIG Popover Menu --- */
.tuner-picker {
  position: relative;
  margin-bottom: 28px;
}

.tuner-trigger {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  padding: 4px 2px;
  font-size: 15px;
  font-weight: 500;
  color: var(--brand-default);
  cursor: pointer;
  font-family: inherit;
  line-height: 1;
}
.tuner-trigger:hover {
  color: var(--brand-strong);
}
.tuner-trigger-chevron {
  transition: transform 0.2s ease;
}
.tuner-trigger-chevron.open {
  transform: rotate(180deg);
}

.tuner-popover {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  min-width: 260px;
  background: var(--surface-primary);
  border-radius: 14px;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
  padding: 6px;
  z-index: 50;
  transform-origin: top center;
}

/* Alpine.js transitions */
.tuner-popover-enter {
  transition: opacity 150ms ease-out, transform 150ms ease-out;
}
.tuner-popover-enter-start {
  opacity: 0;
  transform: translateX(-50%) scale(0.95);
}
.tuner-popover-enter-end {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}
.tuner-popover-leave {
  transition: opacity 100ms ease-in, transform 100ms ease-in;
}
.tuner-popover-leave-start {
  opacity: 1;
  transform: translateX(-50%) scale(1);
}
.tuner-popover-leave-end {
  opacity: 0;
  transform: translateX(-50%) scale(0.95);
}

.tuner-option {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 10px 14px;
  border: none;
  border-radius: 10px;
  background: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 15px;
  color: var(--text-primary);
  gap: 8px;
  text-align: left;
}
.tuner-option:hover {
  background: var(--surface-hover);
}
.tuner-option.selected {
  background: var(--surface-hover);
  font-weight: 500;
}

.tuner-option-label {
  flex: 1;
}
.tuner-option-notes {
  font-family: 'SF Mono', 'Menlo', ui-monospace, monospace;
  font-size: 12px;
  color: var(--text-muted);
  flex-shrink: 0;
}
.tuner-option-check {
  color: var(--brand-default);
  flex-shrink: 0;
  width: 14px;
  height: 14px;
}

.tuner-popover-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 4px 8px;
}

/* --- String indicators --- */
.tuner-strings {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 32px;
}

.tuner-string-dot {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: default;
  padding: 0;
  transition: background 0.3s, color 0.3s, box-shadow 0.3s;
}

.tuner-string-dot.inactive {
  background: var(--surface-hover);
  color: var(--text-muted);
}

.tuner-string-dot.active {
  background: var(--overlay-brand-mid);
  color: var(--brand-strong);
  box-shadow: 0 0 0 2px var(--brand-default);
}

.tuner-string-dot.completed {
  background: color-mix(in srgb, var(--status-success) 12%, transparent);
  color: var(--status-success);
}

.tuner-string-label {
  line-height: 1;
}

.tuner-check {
  position: absolute;
  top: -2px;
  right: -2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--status-success);
  color: var(--text-inverse);
  font-size: 8px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: tuner-check-pop 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes tuner-check-pop {
  0%   { transform: scale(0); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

/* --- Circular gauge (hero) --- */
.tuner-gauge {
  position: relative;
  width: 240px;
  height: 240px;
  margin-bottom: 32px;
}
.tuner-gauge-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}
.tuner-gauge-bg {
  stroke: var(--cream-300);
}
.tuner-gauge-arc {
  transition: stroke-dashoffset 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              stroke 0.25s;
}
.tuner-gauge-inner {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  pointer-events: none;
}
.tuner-gauge-note {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', system-ui, sans-serif;
  font-size: 56px;
  font-weight: 300;
  line-height: 1;
  color: var(--cream-400);
  transition: color 0.25s, font-weight 0.25s, transform 0.25s;
  letter-spacing: -1px;
}
.tuner-gauge-note.has-note {
  font-weight: 500;
  transform: scale(1);
}
.tuner-gauge-sub {
  font-family: 'SF Mono', 'Menlo', ui-monospace, monospace;
  font-size: 12px;
  font-weight: 400;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  margin-top: 4px;
}
.tuner-gauge-cents {
  font-family: 'SF Mono', 'Menlo', ui-monospace, monospace;
  font-size: 13px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  margin-top: 2px;
}
.tuner-gauge-hint {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-muted);
}
.tuner-gauge.in-tune-glow .tuner-gauge-arc {
  filter: drop-shadow(0 0 6px currentColor);
  transition: filter 0.4s;
}

/* --- All tuned --- */
.tuner-all-done {
  text-align: center;
  font-size: 17px;
  font-weight: 600;
  color: var(--status-success);
  letter-spacing: 0.5px;
  margin-bottom: 24px;
  animation: tuner-done-in 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes tuner-done-in {
  0%   { opacity: 0; transform: scale(0.9); }
  100% { opacity: 1; transform: scale(1); }
}

/* --- Controls (bottom) --- */
.tuner-controls {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.tuner-level-wrap {
  width: 240px;
}
.tuner-level-track {
  width: 100%;
  height: 3px;
  background: var(--surface-hover);
  border-radius: 2px;
  overflow: hidden;
}
.tuner-level-fill {
  height: 100%;
  background: var(--brand-default);
  border-radius: 2px;
  transition: width 0.08s linear;
}

.tuner-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tuner-mic-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 24px;
  border: none;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, box-shadow 0.2s;
  background: var(--surface-hover);
  color: var(--text-primary);
}
.tuner-mic-btn:hover {
  background: var(--cream-400);
}
.tuner-mic-btn.active {
  background: var(--brand-default);
  color: var(--text-inverse);
}
.tuner-mic-btn.active:hover {
  background: var(--brand-strong);
}

.tuner-mic-icon {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  transition: background 0.2s, box-shadow 0.2s;
}
.tuner-mic-icon.off {
  background: var(--text-muted);
}
.tuner-mic-icon.on {
  background: var(--text-inverse);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--text-inverse) 30%, transparent);
}

.tuner-reset-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: var(--surface-hover);
  color: var(--text-muted);
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s, color 0.15s;
}
.tuner-reset-btn:hover {
  background: var(--cream-400);
  color: var(--text-primary);
}


/* Song header with add button */
.song-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.btn-add-song {
  background: var(--neon-purple, var(--neon-purple));
  color: var(--text-inverse);
  border: none;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 0.2s;
}
.btn-add-song:hover {
  background: var(--neon-purple-deep);
}

/* Adding song progress */
.adding-song-bar {
  background: color-mix(in srgb, var(--neon-purple) 10%, transparent);
  border: 1px solid var(--neon-purple, var(--neon-purple));
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 16px;
}
.adding-song-text {
  color: var(--text-dim, var(--silver-500));
  font-size: 0.85rem;
  margin-bottom: 6px;
}
.adding-song-progress {
  height: 4px;
  background: color-mix(in srgb, var(--text-inverse) 10%, transparent);
  border-radius: 2px;
  overflow: hidden;
}
.adding-song-fill {
  height: 100%;
  background: var(--neon-purple, var(--neon-purple));
  transition: width 0.3s;
}

/* Song source + delete */
.song-source {
  color: var(--text-dim, var(--stone-500));
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.btn-delete-song {
  background: none;
  border: none;
  color: var(--neon-red, var(--neon-pink));
  cursor: pointer;
  font-size: 1rem;
  padding: 4px 8px;
  opacity: 0.5;
  transition: opacity 0.2s;
}
.btn-delete-song:hover {
  opacity: 1;
}

/* File Browser Modal */
.file-browser-modal {
  position: fixed;
  inset: 0;
  background: color-mix(in srgb, var(--ink-950) 70%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.file-browser-content {
  background: var(--game-bg-deep);
  border: 1px solid color-mix(in srgb, var(--neon-purple) 30%, transparent);
  border-radius: 12px;
  width: 90%;
  max-width: 500px;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
}
.file-browser-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid color-mix(in srgb, var(--text-inverse) 10%, transparent);
}
.file-browser-header h3 {
  margin: 0;
  color: var(--text-inverse);
  font-size: 1rem;
}
.btn-close {
  background: none;
  border: none;
  color: var(--text-dim, var(--stone-500));
  cursor: pointer;
  font-size: 1.2rem;
}
.file-browser-path {
  padding: 8px 20px;
  color: var(--text-dim, var(--stone-500));
  font-size: 0.8rem;
  font-family: monospace;
  border-bottom: 1px solid color-mix(in srgb, var(--text-inverse) 5%, transparent);
}
.file-browser-list {
  overflow-y: auto;
  flex: 1;
  padding: 8px;
}
.file-entry {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 6px;
  cursor: pointer;
  color: var(--cream-500);
  font-size: 0.9rem;
  transition: background 0.15s;
}
.file-entry:hover {
  background: color-mix(in srgb, var(--neon-purple) 15%, transparent);
}
.file-entry.dir {
  color: var(--neon-blue, var(--neon-blue-mid));
}
.file-icon {
  font-size: 1.1rem;
}

/* HUD Volume Slider */
.hud-volume {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-right: 12px;
}
.hud-volume-label {
  color: var(--text-dim, var(--stone-500));
  font-size: 0.7rem;
  white-space: nowrap;
}
.hud-volume-slider {
  width: 60px;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: color-mix(in srgb, var(--text-inverse) 20%, transparent);
  border-radius: 2px;
  outline: none;
}
.hud-volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--neon-purple, var(--neon-purple));
  cursor: pointer;
}

/* body.page-dark: 기타 연주 페이지 진입 시 부여.
   nav 자체는 .app-header가 독립 배경을 가지므로 parchment 유지. */
body.page-dark {
  background: var(--color-ink, var(--text-primary));
}
body.page-dark .container {
  color: var(--color-silver, var(--silver-500));
  font-family: var(--font-sans, "Noto Sans KR", sans-serif);
}

/* 기타 연주 atmosphere — warm-tone radial glow */
body.page-dark .guitar-play-page .atmosphere {
  background:
    radial-gradient(ellipse 60% 70% at 15% 40%, color-mix(in srgb, var(--brand-default) 4%, transparent) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 85% 70%, color-mix(in srgb, var(--brand-hover) 2%, transparent) 0%, transparent 70%);
}

/* ============================================================================
   Claude 디자인 (M3): 기타 연주 페이지 — warm dark 리디자인
   Select / Calibrate / Results 화면. game-screen(full-screen overlay)의
   highway-renderer 캔버스 색상은 JS 내부에서 관리하므로 별도 파일에서 처리.
   ============================================================================ */

/* 기타 연주 select-screen도 warm-tone radial */
body.page-dark .guitar-play-page:not(:has(.tuner-screen)) .atmosphere,
body.page-dark .select-screen ~ .atmosphere {
  background:
    radial-gradient(ellipse 60% 70% at 15% 30%, color-mix(in srgb, var(--brand-default) 4%, transparent) 0%, transparent 70%),
    radial-gradient(ellipse 55% 55% at 85% 75%, color-mix(in srgb, var(--brand-hover) 3%, transparent) 0%, transparent 70%);
}

/* --- Select screen --- */
.guitar-play-page .select-screen {
  max-width: 1080px;
  padding: 72px 24px 96px;
}

.guitar-play-page .select-screen .section-title {
  font-family: var(--font-sans, "Noto Sans KR", sans-serif);
  font-size: 0.63rem;
  font-weight: 500;
  color: var(--color-stone, var(--text-muted));
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.guitar-play-page .select-screen .section-title::after {
  background: linear-gradient(90deg, var(--ink-700), transparent);
}

/* 곡 목록 헤더: 타이틀 + 버튼 */
.song-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.song-header .section-title {
  margin-bottom: 0;
  flex: 1;
}

.btn-add-song {
  font-family: var(--font-sans, sans-serif);
  font-size: 0.82rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm, 8px);
  background: var(--color-dark, var(--ink-800));
  color: var(--color-silver, var(--silver-500));
  border: 1px solid var(--ink-700);
  cursor: pointer;
  transition: all 0.15s;
}
.btn-add-song:hover {
  color: var(--color-brand-coral, var(--brand-hover));
  border-color: var(--color-brand-coral, var(--brand-hover));
}

/* --- Adding-song progress bar --- */
.adding-song-bar {
  background: var(--color-dark, var(--ink-800));
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-md, 12px);
  padding: 14px 18px;
  margin-bottom: 20px;
}
.adding-song-text {
  font-size: 0.88rem;
  color: var(--color-silver, var(--silver-500));
  margin-bottom: 10px;
}
.adding-song-progress {
  height: 4px;
  background: var(--ink-700);
  border-radius: 999px;
  overflow: hidden;
}
.adding-song-fill {
  height: 100%;
  background: var(--color-brand, var(--brand-default));
  transition: width 0.3s ease-out;
}

/* --- Mic bar (select screen 전용 — tuner 와 별도 스코프) --- */
.select-screen .mic-bar {
  background: var(--color-dark, var(--ink-800));
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-md, 12px);
  padding: 14px 18px;
  margin-bottom: 28px;
}
.select-screen .mic-bar .mic-dot.active {
  background: var(--color-brand-coral, var(--brand-hover));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand-hover) 25%, transparent);
}
.select-screen .mic-bar .mic-dot.inactive {
  background: var(--ink-700);
}
.select-screen .mic-bar .mic-label {
  color: var(--color-silver, var(--silver-500));
  font-size: 0.82rem;
  font-weight: 500;
}
.select-screen .mic-bar .mic-level {
  background: var(--ink-700);
}
.select-screen .mic-bar .mic-level-fill {
  background: var(--color-brand, var(--brand-default));
}
.select-screen .mic-bar .btn-mic {
  background: var(--color-brand, var(--brand-default));
  color: var(--color-ivory, var(--surface-card));
  border: none;
  font-size: 0.82rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm, 8px);
  cursor: pointer;
  transition: background 0.15s;
}
.select-screen .mic-bar .btn-mic:hover {
  background: var(--brand-strong);
}

/* --- Song card grid — Claude dark card --- */
.guitar-play-page .song-grid {
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.guitar-play-page .song-card {
  background: var(--color-dark, var(--ink-800));
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-lg, 16px);
  padding: 20px;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.guitar-play-page .song-card::before {
  display: none; /* 기존 neon 블러 효과 제거 */
}

.guitar-play-page .song-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-brand-coral, var(--brand-hover));
  box-shadow: 0 4px 24px color-mix(in srgb, var(--ink-950) 30%, transparent);
}

.guitar-play-page .song-card.selected {
  border-color: var(--color-brand, var(--brand-default));
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--brand-default) 25%, transparent);
}

.guitar-play-page .song-art {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-sm, 8px);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.guitar-play-page .song-info {
  flex: 1;
  min-width: 0;
}

.guitar-play-page .song-title {
  font-family: var(--font-serif, "Noto Serif KR", Georgia, serif);
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--color-ivory, var(--surface-card));
  line-height: 1.25;
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}

.guitar-play-page .song-artist {
  font-family: var(--font-sans, sans-serif);
  font-size: 0.82rem;
  color: var(--color-silver, var(--silver-500));
  margin-bottom: 12px;
}

.guitar-play-page .song-meta {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.guitar-play-page .song-tag {
  font-family: var(--font-sans, sans-serif);
  font-size: 0.7rem;
  font-weight: 500;
  padding: 2px 8px;
  border-radius: 999px;
  letter-spacing: 0.02em;
}

/* Claude 팔레트로 tag 재매핑 */
.guitar-play-page .tag-bpm {
  background: color-mix(in srgb, var(--silver-500) 12%, transparent);
  color: var(--color-silver, var(--silver-500));
}
.guitar-play-page .tag-easy {
  background: color-mix(in srgb, var(--brand-hover) 15%, transparent);
  color: var(--color-brand-coral, var(--brand-hover));
}
.guitar-play-page .tag-medium {
  background: color-mix(in srgb, var(--brand-default) 18%, transparent);
  color: var(--color-brand, var(--brand-default));
}
.guitar-play-page .tag-hard {
  background: color-mix(in srgb, var(--status-error) 18%, transparent);
  color: var(--color-error, var(--status-error));
}
.guitar-play-page .tag-duration {
  background: color-mix(in srgb, var(--text-muted) 15%, transparent);
  color: var(--color-stone, var(--text-muted));
}

.guitar-play-page .song-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  flex-shrink: 0;
}

.guitar-play-page .song-source {
  font-size: 0.63rem;
  color: var(--color-stone, var(--text-muted));
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.guitar-play-page .btn-play {
  font-family: var(--font-sans, sans-serif);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 8px 16px;
  background: var(--color-brand, var(--brand-default));
  color: var(--color-ivory, var(--surface-card));
  border: none;
  border-radius: var(--radius-sm, 8px);
  cursor: pointer;
  letter-spacing: 0.05em;
  transition: background 0.15s;
}
.guitar-play-page .btn-play:hover:not(:disabled) {
  background: var(--brand-strong);
}
.guitar-play-page .btn-play:disabled {
  background: var(--ink-700);
  color: var(--color-stone, var(--text-muted));
  cursor: not-allowed;
}

.btn-delete-song {
  background: transparent;
  border: 1px solid var(--ink-700);
  color: var(--color-stone, var(--text-muted));
  width: 26px;
  height: 26px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.75rem;
}
.btn-delete-song:hover {
  color: var(--color-error, var(--status-error));
  border-color: var(--color-error, var(--status-error));
}

/* --- Calibrate screen --- */
.guitar-play-page .calibrate-screen {
  max-width: 560px;
  margin: 0 auto;
  padding: 72px 24px;
  text-align: center;
}

.guitar-play-page .calibrate-screen .section-title {
  justify-content: center;
  margin-bottom: 16px;
}

.guitar-play-page .calibrate-screen p {
  color: var(--color-silver, var(--silver-500)) !important;
  font-family: var(--font-sans, sans-serif);
  line-height: 1.6;
}

.guitar-play-page .cal-beats {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin: 32px 0;
}

.guitar-play-page .cal-beat {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--color-dark, var(--ink-800));
  border: 1px solid var(--ink-700);
  transition: all 0.15s;
}
.guitar-play-page .cal-beat.current {
  border-color: var(--color-brand, var(--brand-default));
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand-default) 20%, transparent);
}
.guitar-play-page .cal-beat.hit {
  background: var(--color-brand-coral, var(--brand-hover));
  border-color: var(--color-brand-coral, var(--brand-hover));
}

.btn-calibrate {
  font-family: var(--font-sans, sans-serif);
  font-size: 0.94rem;
  font-weight: 500;
  padding: 12px 28px;
  background: var(--color-brand, var(--brand-default));
  color: var(--color-ivory, var(--surface-card));
  border: none;
  border-radius: var(--radius-md, 12px);
  cursor: pointer;
  transition: background 0.15s;
}
.btn-calibrate:hover:not(:disabled) { background: var(--brand-strong); }
.btn-calibrate:disabled {
  background: var(--ink-700);
  color: var(--color-stone, var(--text-muted));
  cursor: not-allowed;
}

/* --- Results screen — Claude editorial treatment --- */
.guitar-play-page .results-screen {
  max-width: 680px;
  margin: 0 auto;
  padding: 72px 24px 96px;
}

.guitar-play-page .results-grade {
  text-align: center;
  margin-bottom: 56px;
}

.guitar-play-page .grade-letter {
  font-family: var(--font-serif, "Noto Serif KR", Georgia, serif);
  font-size: 8rem;
  font-weight: 500;
  line-height: 1;
  letter-spacing: -0.04em;
  text-shadow: none !important;
  display: block;
  margin-bottom: 8px;
}
.guitar-play-page .grade-S { color: var(--neon-gold); }
.guitar-play-page .grade-A { color: var(--color-brand-coral, var(--brand-hover)); }
.guitar-play-page .grade-B { color: var(--color-brand, var(--brand-default)); }
.guitar-play-page .grade-C { color: var(--game-warmwood); }

.guitar-play-page .grade-score {
  font-family: "JetBrains Mono", "SF Mono", Menlo, monospace;
  font-size: 1.75rem;
  color: var(--color-ivory, var(--surface-card));
  letter-spacing: 0.08em;
}

.guitar-play-page .grade-pct {
  font-family: var(--font-sans, sans-serif);
  font-size: 0.94rem;
  color: var(--color-silver, var(--silver-500));
  margin-top: 4px;
}

.guitar-play-page .results-screen .section-title {
  margin: 24px 0 16px;
}

.guitar-play-page .judgment-bars {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 8px;
}

.guitar-play-page .jbar-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.guitar-play-page .jbar-label {
  font-family: var(--font-sans, sans-serif);
  font-size: 0.75rem;
  font-weight: 600;
  width: 70px;
  letter-spacing: 0.08em;
}

.guitar-play-page .jbar-track {
  flex: 1;
  height: 8px;
  background: var(--color-dark, var(--ink-800));
  border-radius: 999px;
  overflow: hidden;
}
.guitar-play-page .jbar-fill {
  height: 100%;
  transition: width 0.6s ease-out;
  border-radius: 999px;
}
.guitar-play-page .jbar-count {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.82rem;
  color: var(--color-silver, var(--silver-500));
  width: 40px;
  text-align: right;
}

.guitar-play-page .stats-grid {
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.guitar-play-page .stat-box {
  background: var(--color-dark, var(--ink-800));
  border: 1px solid var(--ink-700);
  border-radius: var(--radius-md, 12px);
  padding: 20px 16px;
  text-align: center;
}

.guitar-play-page .stat-value {
  font-family: var(--font-serif, "Noto Serif KR", Georgia, serif);
  font-size: 1.75rem;
  font-weight: 500;
  color: var(--color-ivory, var(--surface-card));
  line-height: 1;
  margin-bottom: 6px;
}

.guitar-play-page .stat-label {
  font-family: var(--font-sans, sans-serif);
  font-size: 0.63rem;
  color: var(--color-stone, var(--text-muted));
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.guitar-play-page .results-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

.guitar-play-page .btn-result {
  font-family: var(--font-sans, sans-serif);
  font-size: 0.94rem;
  font-weight: 500;
  padding: 10px 24px;
  border-radius: var(--radius-md, 12px);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s;
}

.guitar-play-page .btn-retry {
  background: var(--color-brand, var(--brand-default));
  color: var(--color-ivory, var(--surface-card));
}
.guitar-play-page .btn-retry:hover {
  background: var(--brand-strong);
}

.guitar-play-page .btn-back {
  background: var(--color-dark, var(--ink-800));
  color: var(--color-silver, var(--silver-500));
  border-color: var(--ink-700);
}
.guitar-play-page .btn-back:hover {
  color: var(--color-ivory, var(--surface-card));
  border-color: var(--color-silver, var(--silver-500));
}

/* --- Judgment bar fill colors override (인라인 style 보다 뒤에 위치하므로 무효이지만 참조용) --- */
/* 인라인 style은 JS에서 var(--neon-*)를 쓰지만, neon 변수는 여전히
   :root에 정의되어 있으므로 색상은 neon 그대로 렌더된다.
   M3 scope에서는 인라인 var를 건드리지 않고, 대신 :root 수준에서
   neon 변수들을 Claude warm 톤으로 리맵한다. */
.guitar-play-page, .game-screen {
  --neon-gold: var(--neon-gold);
  --neon-green: var(--brand-hover);
  --neon-blue: var(--brand-default);
  --neon-red: var(--status-error);
  --neon-cyan: var(--silver-500);
  --neon-magenta: var(--brand-hover);
  --neon-orange: var(--brand-default);
  --neon-purple: var(--game-warmwood);
}