/* ─── Settings Panel (left slide) ───────────────────────────────── */
#settings-panel {
  position: fixed; left: 0; top: 0; bottom: 0; width: 280px;
  background: var(--bg-surface); border-right: 1px solid var(--border);
  padding: 20px 16px; display: flex; flex-direction: column; gap: 20px;
  transform: translateX(-100%); transition: transform .25s cubic-bezier(.4,0,.2,1);
  z-index: 110; overflow-y: auto;
}
#settings-panel.open { transform: translateX(0); }

.settings-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 109;
  display: none; backdrop-filter: blur(2px);
}
.settings-overlay.visible { display: block; }

.settings-title {
  font-size: 13px; font-weight: 700; letter-spacing: .08em;
  color: var(--text-secondary); text-transform: uppercase;
  display: flex; align-items: center; justify-content: space-between;
}
.settings-close { background: none; border: none; cursor: pointer; color: var(--text-secondary); display: flex; padding: 2px; transition: color .2s; }
.settings-close:hover { color: var(--danger); }
.settings-close svg { width: 16px; height: 16px; }

.settings-group { display: flex; flex-direction: column; gap: 10px; }
.settings-group-label { font-size: 10px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .1em; padding-bottom: 4px; border-bottom: 1px solid var(--border); }

.settings-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.settings-row-label { font-size: 13px; color: var(--text-secondary); display: flex; align-items: center; gap: 6px; }
.settings-row-label svg { width: 13px; height: 13px; }

.settings-select {
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary);
  font-family: var(--font-ui); font-size: 12px; padding: 4px 8px;
  cursor: pointer; outline: none; max-width: 120px;
}
.settings-toggle {
  display: flex; align-items: center; gap: 0;
  background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: 20px; padding: 2px; cursor: pointer;
  width: 48px; height: 26px; transition: background .2s;
}
.settings-toggle.on { background: var(--accent); border-color: var(--accent); }
.settings-toggle-thumb { width: 20px; height: 20px; border-radius: 50%; background: var(--text-muted); transition: transform .2s, background .2s; }
.settings-toggle.on .settings-toggle-thumb { transform: translateX(22px); background: var(--bg-base); }

.settings-btn-row { display: flex; flex-direction: column; gap: 6px; }
.settings-btn {
  width: 100%; padding: 8px 12px; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--bg-elevated);
  color: var(--text-secondary); font-family: var(--font-ui); font-size: 12px;
  cursor: pointer; display: flex; align-items: center; gap: 8px;
  transition: all .15s;
}
.settings-btn:hover { background: var(--bg-card); color: var(--text-primary); }
.settings-btn svg { width: 13px; height: 13px; }
.settings-btn.danger { color: var(--danger); }

.settings-vol-row { display: flex; flex-direction: column; gap: 6px; }
.settings-vol-slider { width: 100%; -webkit-appearance: none; height: 4px; background: var(--bg-card); border-radius: 2px; outline: none; cursor: pointer; }
.settings-vol-slider::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%; background: var(--accent); }

/* ─── Search bar ─────────────────────────────────────────────────── */
.search-wrap { position: relative; flex: 1; max-width: 220px; }
.search-input {
  width: 100%; background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: 20px; color: var(--text-primary);
  font-family: var(--font-ui); font-size: 12px;
  padding: 5px 28px 5px 30px; outline: none;
  transition: border-color .2s, background .2s;
}
.search-input:focus { border-color: var(--border-focus); background: var(--bg-card); }
.search-icon { position: absolute; left: 9px; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; }
.search-icon svg { width: 13px; height: 13px; }
.search-clear { position: absolute; right: 8px; top: 50%; transform: translateY(-50%); background: none; border: none; cursor: pointer; color: var(--text-muted); padding: 0; display: none; }
.search-clear.visible { display: flex; }
.search-clear svg { width: 13px; height: 13px; }
.search-count { font-size: 10px; color: var(--accent); white-space: nowrap; }

/* Pad search states */
.key-pad.search-match  { border-color: var(--accent) !important; box-shadow: 0 0 8px var(--accent-glow); }
.key-pad.search-dim    { opacity: 0.2; }

/* ─── Recording Modal ────────────────────────────────────────────── */
#record-modal .modal { text-align: center; max-width: 360px; }
.record-status { font-size: 12px; color: var(--text-secondary); margin-bottom: 16px; height: 20px; }
.record-timer { font-family: var(--font-mono); font-size: 36px; font-weight: 700; color: var(--text-primary); margin-bottom: 24px; letter-spacing: .04em; }
.record-timer.recording { color: var(--danger); animation: blink-timer 1s ease-in-out infinite; }
@keyframes blink-timer { 0%,100%{opacity:1} 50%{opacity:.6} }
.record-btn {
  width: 72px; height: 72px; border-radius: 50%; border: none; cursor: pointer;
  background: var(--accent); color: var(--bg-base); font-size: 28px;
  display: flex; align-items: center; justify-content: center; margin: 0 auto 16px;
  transition: all .2s; box-shadow: 0 0 20px var(--accent-glow);
}
.record-btn:hover { transform: scale(1.06); }
.record-btn.recording { background: var(--danger); box-shadow: 0 0 20px rgba(255,92,92,.4); }
.record-btn svg { width: 28px; height: 28px; }
.record-actions { display: flex; gap: 8px; justify-content: center; margin-top: 8px; }

/* ─── Quick Volume Popover ───────────────────────────────────────── */
#vol-popover {
  position: fixed; background: var(--bg-elevated); border: 1px solid var(--border);
  border-radius: var(--radius-md); padding: 14px 16px; z-index: 300;
  box-shadow: var(--shadow-lg); min-width: 200px; display: none;
}
#vol-popover.visible { display: block; }
.vol-pop-label { font-size: 11px; color: var(--text-secondary); margin-bottom: 8px; font-weight: 500; }
.vol-pop-row { display: flex; align-items: center; gap: 8px; }
.vol-pop-slider { flex: 1; -webkit-appearance: none; height: 4px; background: var(--bg-card); border-radius: 2px; outline: none; cursor: pointer; }
.vol-pop-slider::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 14px; border-radius: 50%; background: var(--accent); }
.vol-pop-val { font-family: var(--font-mono); font-size: 12px; color: var(--text-secondary); min-width: 32px; text-align: right; }

/* ─── System theme (OS accent + prefers-color-scheme) ──────────── */
[data-theme="system"] {
  color-scheme: light dark;
  /* fallback to dark */
  --bg-base:     #15171c;
  --bg-surface:  #1d2027;
  --bg-elevated: #22252d;
  --bg-card:     #292c36;
  --border:              rgba(255,255,255,0.07);
  --border-focus:        rgba(78,225,194,0.45);
  --text-primary:  #ebedf2;
  --text-secondary:#a0a3af;
  --text-muted:    #4a5060;
  --accent:        #4ee1c2;
  --accent-glow:   rgba(78,225,194,0.25);
  --accent-active: #7eeedd;
  --accent2:       #ff6b4a;
  --pad-empty:          #1d2027;
  --pad-empty-border:   rgba(255,255,255,0.06);
  --pad-assigned:       #1a2e2a;
  --pad-assigned-border:rgba(78,225,194,0.3);
  --pad-playing:        rgba(78,225,194,0.2);
  --pad-playing-border: #4ee1c2;
  --danger:  #ff5c5c;
  --success: #5cd98c;
  --warn:    #ffb347;
  --crown:   #ffc107;
}
@supports (color: AccentColor) {
  [data-theme="system"] {
    --accent:        AccentColor;
    --border-focus:  color-mix(in srgb, AccentColor 50%, transparent);
    --accent-glow:   color-mix(in srgb, AccentColor 25%, transparent);
    --accent-active: AccentColor;
    --pad-assigned-border: color-mix(in srgb, AccentColor 40%, transparent);
    --pad-playing-border:  AccentColor;
    --pad-playing:         color-mix(in srgb, AccentColor 18%, transparent);
  }
}
@media (prefers-color-scheme: light) {
  [data-theme="system"] {
    --bg-base:     #f0f1f5;
    --bg-surface:  #ffffff;
    --bg-elevated: #e6e8ee;
    --bg-card:     #dde0ea;
    --border:              rgba(0,0,0,0.10);
    --text-primary:  #14161e;
    --text-secondary:#646978;
    --text-muted:    #9ca3b0;
    --pad-empty:          #dde0ea;
    --pad-empty-border:   rgba(0,0,0,0.08);
    --pad-assigned:       #c0e8e0;
    --danger:  #e03030;
    --success: #1a9950;
    --warn:    #d4820a;
    --crown:   #c8900a;
  }
  @supports (color: AccentColor) {
    [data-theme="system"] {
      --accent:        AccentColor;
      --pad-assigned:  color-mix(in srgb, AccentColor 20%, #dde0ea);
    }
  }
}

/* ─── Portrait paging nav ───────────────────────────────────────── */
#kb-nav {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 8px 0 10px;
  flex-shrink: 0;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  z-index: 10;
}
.kb-nav-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 18px;
  padding: 6px 20px;
  cursor: pointer;
  line-height: 1;
  transition: all .15s;
  display: flex; align-items: center; justify-content: center; gap: 6px;
}
.kb-nav-btn:hover:not(:disabled) { background: var(--bg-card); border-color: var(--accent); color: var(--accent); }
.kb-nav-btn:disabled { opacity: 0.25; cursor: not-allowed; }
.kb-nav-btn svg { width: 16px; height: 16px; }
#kb-page-indicator {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
  min-width: 52px;
  text-align: center;
}
.kb-page-dots {
  display: flex; gap: 5px; align-items: center;
}
.kb-page-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--border); transition: background .2s, transform .2s;
}
.kb-page-dot.active { background: var(--accent); transform: scale(1.3); }

/* Portrait: main clipping area */
/* PCは pointer:fine（マウス）なので除外，タッチデバイスのみ */
@media (orientation: portrait) and (max-width: 1024px) and (pointer: coarse) {
  #main { align-items: flex-start; justify-content: flex-start; padding: 4px; }
  #keyboard-wrapper { overflow: hidden; flex-shrink: 0; }
}

/* ─── Browser theme (OS accent + white base) ──────────────────── */
[data-theme="browser"] {
  /* 白ベース + Brave オレンジのフォールバック */
  --bg-base:     #f3f4f6;
  --bg-surface:  #ffffff;
  --bg-elevated: #eaecf0;
  --bg-card:     #dddfe4;
  --border:              rgba(0,0,0,0.11);
  --border-focus:        rgba(234,119,40,0.50);
  --text-primary:  #1c1c1e;
  --text-secondary:#555e6d;
  --text-muted:    #9aa0ac;
  --accent:        #ea7728;   /* Brave オレンジ フォールバック */
  --accent-glow:   rgba(234,119,40,0.28);
  --accent-active: #f08840;
  --accent2:       #4285f4;
  --pad-empty:          #eaecf0;
  --pad-empty-border:   rgba(0,0,0,0.08);
  --pad-assigned:       #fef0e3;
  --pad-assigned-border:rgba(234,119,40,0.38);
  --pad-playing:        rgba(234,119,40,0.18);
  --pad-playing-border: #ea7728;
  --danger:  #d32f2f;
  --success: #2e7d32;
  --warn:    #e65100;
  --crown:   #f9a825;
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12);
}
/* Brave=オレンジ / Chrome=青 / Edge=青 / Firefox=紫 — AccentColor が自動で変わる */
@supports (color: AccentColor) {
  [data-theme="browser"] {
    --accent:        AccentColor;
    --accent-active: AccentColor;
    --border-focus:  color-mix(in srgb, AccentColor 50%, transparent);
    --accent-glow:   color-mix(in srgb, AccentColor 28%, transparent);
    --pad-assigned:  color-mix(in srgb, AccentColor 12%, #ffffff);
    --pad-assigned-border: color-mix(in srgb, AccentColor 42%, transparent);
    --pad-playing:         color-mix(in srgb, AccentColor 18%, transparent);
    --pad-playing-border:  AccentColor;
  }
}