/* ── Design tokens ─────────────────────────────────────────── */
:root {
  --bg:              #06080d;
  --bg2:             #090c12;
  --surface:         #0d1118;
  --surface2:        #131820;
  --surface3:        #1a2130;

  --key-bg:          #141b26;
  --key-bg-hover:    #1c2638;
  --key-border:      #1e2a3d;
  --key-border-b:    #05070c;
  --key-pressed-bg:  rgba(0, 212, 255, 0.10);

  --accent:          #00d4ff;
  --accent2:         #7c3aed;
  --accent-glow:     rgba(0, 212, 255, 0.35);
  --accent-dim:      rgba(0, 212, 255, 0.12);

  --text:            #c8d6e8;
  --text-2:          #5a7090;
  --text-3:          #263040;

  --font: 'JetBrains Mono', 'Cascadia Code', 'Fira Code', monospace;

  --key-w:   clamp(44px, calc((100vw - 340px) / 13), 80px);
  --key-h:   var(--key-w);
  --key-gap: clamp(3px, 0.35vw, 6px);
  --key-unit: calc(var(--key-w) + var(--key-gap));

  --radius: 5px;
  --header-h: 58px;
  --viz-h: 72px;
}

/* ── Reset ──────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Scanline overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(0, 0, 0, 0.04) 3px,
    rgba(0, 0, 0, 0.04) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* Vignette */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(ellipse at 50% 40%, transparent 55%, rgba(0,0,0,0.55) 100%);
  pointer-events: none;
  z-index: 9998;
}

/* ── App shell ──────────────────────────────────────────────── */
#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  background:
    radial-gradient(ellipse 80% 50% at 50% 100%, rgba(0, 212, 255, 0.03) 0%, transparent 70%),
    var(--bg);
}

/* ── Header ─────────────────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  padding: 0 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--surface3);
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}

.app-header::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-dim), transparent);
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  color: var(--accent);
  filter: drop-shadow(0 0 6px var(--accent-glow));
}

.logo-text {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--accent);
  text-shadow: 0 0 20px var(--accent-glow), 0 0 60px rgba(0, 212, 255, 0.15);
}

/* Mode toggle */
.mode-toggle {
  display: flex;
  align-items: center;
  background: var(--surface2);
  border: 1px solid var(--surface3);
  border-radius: 4px;
  padding: 3px;
  gap: 2px;
}

.mode-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 3px;
  font: 600 0.8rem/1 var(--font);
  letter-spacing: 0.08em;
  color: var(--text-2);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: color 0.15s, background 0.15s, box-shadow 0.15s;
  white-space: nowrap;
  min-height: 32px;
}

.mode-btn .mode-icon {
  font-size: 0.9rem;
  opacity: 0.8;
}

.mode-btn:hover { color: var(--text); }

.mode-btn.active {
  background: var(--surface3);
  color: var(--accent);
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.15);
}

.mode-btn.active .mode-icon { opacity: 1; }

/* Status */
.header-right { display: flex; align-items: center; gap: 14px; }

.status-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-2);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  width: 72px;
  flex-shrink: 0;
  overflow: hidden;
}

.status-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  min-width: 0;
}

.status-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--text-3);
  transition: background 0.2s, box-shadow 0.2s;
}

.status-dot.active {
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
  animation: pulse 1.5s ease-in-out infinite;
}

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

/* ── Visualizer ─────────────────────────────────────────────── */
.visualizer-zone {
  height: var(--viz-h);
  background: var(--bg2);
  border-bottom: 1px solid var(--surface3);
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}

/* Thin top rule that glows faintly — grounds the vis in the header */
.visualizer-zone::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,212,255,0.08), transparent);
  pointer-events: none;
}
/* Subtle floor line — bars rest on it */
.visualizer-zone::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0; height: 1px;
  background: rgba(0,212,255,0.05);
  pointer-events: none;
}

#visualizer {
  width: 100%;
  height: 100%;
  display: block;
  opacity: 0.85;
}


/* ── Keyboard deck ──────────────────────────────────────────── */
.keyboard-deck {
  background: var(--surface2);
  border: 1px solid var(--surface3);
  border-radius: 10px;
  padding: 18px 20px 22px;
  position: relative;
  box-shadow:
    0 0 0 1px rgba(0,0,0,0.5),
    0 20px 60px rgba(0,0,0,0.6),
    0 0 80px rgba(0, 212, 255, 0.03);
}

.keyboard-deck::before {
  content: '';
  position: absolute;
  top: 0; left: 20%; right: 20%; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 212, 255, 0.15), transparent);
}

/* ── Keyboard ───────────────────────────────────────────────── */
.keyboard {
  display: flex;
  flex-direction: column;
  gap: var(--key-gap);
  user-select: none;
}

.key-row {
  display: flex;
  gap: var(--key-gap);
}

.key-row.row-0 { margin-left: 0; }
.key-row.row-1 { margin-left: calc(0.5  * var(--key-unit)); }
.key-row.row-2 { margin-left: calc(0.75 * var(--key-unit)); }
.key-row.row-3 { margin-left: calc(1.25 * var(--key-unit)); }

/* ── Individual key ─────────────────────────────────────────── */
.key {
  width: var(--key-w);
  height: var(--key-h);
  background: var(--key-bg);
  border: 1px solid var(--key-border);
  border-bottom: 3px solid var(--key-border-b);
  border-radius: var(--radius);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition:
    background 0.06s,
    border-color 0.06s,
    box-shadow 0.06s,
    transform 0.06s;
  box-shadow:
    0 4px 0 var(--key-border-b),
    0 6px 14px rgba(0, 0, 0, 0.5),
    inset 0 1px 0 rgba(255,255,255,0.04);
  --key-accent: var(--accent);
}

.key::after {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: calc(var(--radius) + 1px);
  opacity: 0;
  box-shadow: 0 0 0 1px var(--key-accent), 0 0 16px var(--key-accent), 0 0 32px rgba(0, 212, 255, 0.2);
  transition: opacity 0.06s;
  pointer-events: none;
}

.key:hover {
  background: var(--key-bg-hover);
  border-color: rgba(255,255,255,0.07);
}

.key:hover::after { opacity: 0.35; }

.key.pressed {
  background: var(--key-pressed-bg);
  border-color: var(--key-accent);
  transform: translateY(3px);
  box-shadow:
    0 1px 0 var(--key-border-b),
    0 2px 6px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255,255,255,0.04);
}

.key.pressed::after { opacity: 1; }

/* Disabled (sampler mode — not in piano layout) */
.key[data-state="disabled"] {
  opacity: 0.18;
  pointer-events: none;
  filter: grayscale(1);
}

/* Piano key variants (sampler mode) */
.key[data-state="piano-white"] {
  --key-accent: #e8f0ff;
  border-color: rgba(232, 240, 255, 0.1);
}

.key[data-state="piano-black"] {
  --key-accent: #7c3aed;
  background: #0d1020;
}

/* Has-sound indicator */
.key.has-sound {
  border-color: rgba(0, 212, 255, 0.2);
}

.key.has-sound .key-color-strip {
  opacity: 1;
}

/* ── Key labels ─────────────────────────────────────────────── */
.key-label-alt {
  position: absolute;
  top: 5px;
  right: 6px;
  font-size: clamp(8px, calc(var(--key-w) * 0.14), 13px);
  font-weight: 400;
  color: var(--text-3);
  line-height: 1;
  pointer-events: none;
  transition: color 0.1s;
}

.key:hover .key-label-alt,
.key.pressed .key-label-alt {
  color: var(--text-2);
}

.key-label-main {
  font-size: clamp(11px, calc(var(--key-w) * 0.26), 20px);
  font-weight: 600;
  color: var(--text-2);
  line-height: 1;
  pointer-events: none;
  transition: color 0.06s;
  letter-spacing: 0.02em;
}

.key:hover .key-label-main { color: var(--text); }
.key.pressed .key-label-main { color: var(--key-accent); }

.key-sub-label {
  position: absolute;
  bottom: 5px;
  left: 3px;
  right: 3px;
  text-align: center;
  font-size: clamp(8px, calc(var(--key-w) * 0.14), 13px);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--key-accent);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}

.key.has-sound .key-sub-label { opacity: 0.8; }
.key.pressed .key-sub-label { opacity: 1; }

/* Color strip — tiny accent bar at key bottom */
.key-color-strip {
  position: absolute;
  bottom: 0;
  left: 8px;
  right: 8px;
  height: 2px;
  border-radius: 0 0 3px 3px;
  background: var(--key-accent);
  opacity: 0;
  transition: opacity 0.2s;
  box-shadow: 0 0 6px var(--key-accent);
}

/* Note label (sampler mode) */
.key-note-label {
  position: absolute;
  top: 5px;
  left: 6px;
  font-size: clamp(8px, calc(var(--key-w) * 0.15), 13px);
  font-weight: 600;
  color: var(--key-accent);
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
  letter-spacing: 0.02em;
}

/* ── Sampler key states ─────────────────────────────────────── */
/* Disabled keys: clearly visible but inactive */
#app[data-mode="sampler"] .key[data-state="disabled"] {
  opacity: 0.42;
  pointer-events: none;
  filter: grayscale(1);
}

/* Black piano keys: noticeably darker with purple tint */
#app[data-mode="sampler"] .key[data-state="piano-black"] {
  background: #080c18;
  --key-accent: var(--accent2);
  border-color: rgba(124, 58, 237, 0.25);
  box-shadow: 0 4px 0 #020408, 0 6px 14px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.03);
}

/* White piano keys: slightly brighter to contrast against black keys */
#app[data-mode="sampler"] .key[data-state="piano-white"] {
  --key-accent: var(--accent);
  background: #1a2336;
  border-color: rgba(0, 212, 255, 0.18);
}

#app[data-mode="sampler"] .key[data-state="piano-black"].pressed {
  background: rgba(124, 58, 237, 0.25);
}
#app[data-mode="sampler"] .key[data-state="piano-white"].pressed {
  background: rgba(0, 212, 255, 0.15);
}

/* Note labels: big and clear, letter key smaller beneath */
#app[data-mode="sampler"] .key-note-label {
  opacity: 1;
  font-size: clamp(9px, calc(var(--key-w) * 0.18), 15px);
  font-weight: 700;
}
#app[data-mode="sampler"] .key[data-state="piano-black"] .key-note-label {
  color: var(--accent2);
}
#app[data-mode="sampler"] .key[data-state="piano-white"] .key-note-label {
  color: var(--accent);
}
/* Disabled keys show their letter clearly */
#app[data-mode="sampler"] .key[data-state="disabled"] .key-label-main {
  opacity: 0.8;
}
#app[data-mode="sampler"] .key[data-state="piano-black"] .key-label-main,
#app[data-mode="sampler"] .key[data-state="piano-white"] .key-label-main {
  opacity: 0.55;
}
#app[data-mode="sampler"] .key-label-alt   { opacity: 0; }
#app[data-mode="sampler"] .key-sub-label   { opacity: 0 !important; }
#app[data-mode="sampler"] .key-color-strip { opacity: 0 !important; }

/* ── Sampler controls ───────────────────────────────────────── */
.sampler-controls {
  animation: fadein 0.2s ease;
}

.sampler-row {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 28px;
  padding: 0 14px;
  background: var(--surface2);
  border: 1px solid var(--surface3);
  border-top-color: rgba(124, 58, 237, 0.3);
  border-radius: 4px;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
}

.sampler-label {
  color: var(--text-2);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

.sampler-sep {
  width: 1px;
  height: 14px;
  background: var(--surface3);
  flex-shrink: 0;
}

.oct-btn {
  background: var(--surface2);
  border: 1px solid var(--surface3);
  border-radius: 4px;
  color: var(--text);
  font: 600 0.7rem var(--font);
  width: 28px;
  height: 28px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: color 0.1s, border-color 0.1s, background 0.1s;
}

.oct-btn:hover { color: var(--accent2); border-color: var(--accent2); }

.oct-value {
  font-weight: 700;
  color: var(--accent2);
  font-size: 0.9rem;
  min-width: 14px;
  text-align: center;
}

.sampler-sound-name {
  color: var(--text);
  font-size: 0.76rem;
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sampler-mode-select {
  background: var(--surface2);
  border: 1px solid var(--surface3);
  border-radius: 4px;
  color: var(--text);
  font: 0.72rem var(--font);
  padding: 4px 6px;
  cursor: pointer;
  outline: none;
  letter-spacing: 0.04em;
  height: 28px;
}

.sampler-mode-select:focus { border-color: var(--accent2); }

.sampler-progress-wrap {
  display: flex;
  align-items: center;
  gap: 7px;
}

.sampler-prog-track {
  width: 80px;
  height: 3px;
  background: var(--surface3);
  border-radius: 2px;
  overflow: hidden;
}

.sampler-prog-bar {
  height: 100%;
  width: 0%;
  background: var(--accent2);
  border-radius: 2px;
  transition: width 0.15s ease;
  box-shadow: 0 0 6px rgba(124,58,237,0.6);
}

/* ── Info bar ───────────────────────────────────────────────── */
.info-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 28px;
  padding: 0 14px;
  background: var(--surface2);
  border: 1px solid var(--surface3);
  border-radius: 4px;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  min-width: 300px;
  justify-content: center;
}

.info-key {
  color: var(--accent);
  font-weight: 700;
  min-width: 28px;
  text-align: center;
}

.info-divider {
  width: 1px;
  height: 12px;
  background: var(--surface3);
}

.info-sound {
  color: var(--text);
  flex: 1;
  text-align: center;
}

.info-mode {
  color: var(--text-2);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.info-note {
  color: var(--accent2);
  font-weight: 600;
  min-width: 28px;
  text-align: center;
}

/* ── Animations ─────────────────────────────────────────────── */
@keyframes key-ripple {
  0%   { transform: scale(0.8); opacity: 0.6; }
  100% { transform: scale(2.5); opacity: 0; }
}

.key-ripple {
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  background: var(--key-accent);
  pointer-events: none;
  animation: key-ripple 0.4s ease-out forwards;
}

/* ── Main content layout ────────────────────────────────────── */
.main-content {
  flex: 1;
  display: flex;
  align-items: stretch;
  overflow: hidden;
  padding: 0;
  gap: 0;
}

/* keyboard-area = column holding the keyboard zone + controls strip */
.keyboard-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}

/* keyboard-zone: fills all remaining space, keyboard always centered */
.keyboard-zone {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  min-height: 0;
}

/* controls-strip: fixed height, swaps content per mode, never shifts keyboard */
.controls-strip {
  height: 44px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px 12px;
}

/* ── Assign hint ────────────────────────────────────────────── */
.assign-hint {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: fadein 0.2s ease;
}

.assign-hint button {
  background: var(--surface2);
  border: 1px solid var(--surface3);
  color: var(--text);
  font: 0.72rem var(--font);
  padding: 5px 12px;
  border-radius: 4px;
  cursor: pointer;
  letter-spacing: 0.05em;
  min-height: 28px;
}

.assign-hint button:hover { border-color: var(--text-2); color: var(--text); }

/* ── Library panel ──────────────────────────────────────────── */
.library-panel {
  width: 270px;
  min-width: 270px;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border-left: 1px solid var(--surface3);
  overflow: hidden;
  transition: width 0.2s ease, min-width 0.2s ease;
  position: relative;
}

.library-panel.hidden {
  width: 0;
  min-width: 0;
  border-left: none;
}

.library-panel.drag-over { border-left-color: var(--accent); }

/* Library header */
.lib-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--surface3);
  flex-shrink: 0;
  min-height: 48px;
}

.lib-title {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text);
  flex-shrink: 0;
}

.lib-search {
  flex: 1;
  min-width: 0;
  background: var(--surface2);
  border: 1px solid var(--surface3);
  border-radius: 4px;
  color: var(--text);
  font: 0.76rem var(--font);
  padding: 6px 10px;
  outline: none;
  transition: border-color 0.15s;
  height: 32px;
}

.lib-search:focus { border-color: var(--accent); }
.lib-search::placeholder { color: var(--text-3); }

/* Library list */
.lib-list {
  flex: 1;
  overflow-y: auto;
  padding: 6px 0;
}

.lib-empty {
  padding: 24px 16px;
  text-align: center;
  color: var(--text-3);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
}

.lib-section { margin-bottom: 4px; }

.lib-cat {
  padding: 8px 12px 4px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--cat-color, var(--text-2));
  opacity: 1;
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  gap: 6px;
}
.lib-cat:hover { opacity: 0.75; }
.lib-cat-arrow {
  display: inline-block;
  font-style: normal;
  transition: transform 0.15s;
  font-size: 0.6rem;
  opacity: 0.6;
}
.lib-cat-arrow::before { content: '▼'; }
.lib-section.collapsed .lib-cat-arrow { transform: rotate(-90deg); }
.lib-section.collapsed .lib-card { display: none; }
.lib-cat-count {
  font-weight: 400;
  opacity: 0.45;
  letter-spacing: 0;
  margin-left: auto;
  font-size: 0.65rem;
}

/* Sound card */
.lib-card {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 10px;
  cursor: pointer;
  transition: background 0.1s;
  position: relative;
  min-height: 44px;
}

.lib-card:hover { background: var(--surface2); }

.lib-card--active {
  background: var(--accent-dim);
  border-right: 2px solid var(--accent);
}

.lib-preview {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  background: var(--surface3);
  border: none;
  border-radius: 5px;
  color: var(--text-2);
  font-size: 0.76rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.1s, color 0.1s;
}

.lib-preview:hover,
.lib-preview--playing {
  background: var(--accent);
  color: var(--bg);
}

.lib-preview--playing {
  background: rgba(239,68,68,0.8) !important;
  animation: preview-pulse 0.8s ease-in-out infinite alternate;
}

@keyframes preview-pulse {
  from { opacity: 0.8; }
  to   { opacity: 1; }
}

.lib-edit {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  background: var(--surface2);
  border: 1px solid var(--surface3);
  border-radius: 4px;
  color: var(--text-2);
  font-size: 0.76rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.15s, color 0.1s, border-color 0.1s;
}

.lib-card:hover .lib-edit { opacity: 1; }
.lib-edit:hover { color: var(--accent); border-color: var(--accent); }

.lib-card-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.lib-card-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lib-card-meta {
  display: flex;
  align-items: center;
  gap: 5px;
  flex-wrap: wrap;
}

.lib-card-cat {
  font-size: 0.68rem;
  color: var(--text-2);
  white-space: nowrap;
}

.lib-key-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 3px;
  background: var(--surface3);
  border-radius: 3px;
  font-size: 0.66rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0;
}

.lib-card-dur {
  font-size: 0.7rem;
  color: var(--text-2);
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

/* Drop zone */
.lib-drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 8px;
  padding: 12px;
  border: 1px dashed var(--surface3);
  border-radius: 5px;
  cursor: pointer;
  font-size: 0.72rem;
  color: var(--text-3);
  letter-spacing: 0.06em;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
  text-align: center;
  flex-shrink: 0;
}

.lib-drop:hover, .lib-drop.uploading {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.lib-drop-icon {
  font-size: 1rem;
  opacity: 0.5;
}

/* ── Vol + library toggle controls ──────────────────────────── */
.vol-control {
  display: flex;
  align-items: center;
  gap: 6px;
}

.vol-label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--text-2);
}

.vol-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 4px;
  background: var(--surface3);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.vol-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
  cursor: pointer;
}

.icon-btn {
  width: 32px;
  height: 32px;
  background: var(--surface2);
  border: 1px solid var(--surface3);
  border-radius: 4px;
  color: var(--text-2);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s, border-color 0.15s;
  line-height: 1;
}

.icon-btn:hover { color: var(--text); border-color: var(--text-2); }
.icon-btn[aria-pressed="true"] { color: var(--accent); border-color: var(--accent); }

/* ── Key selected state ─────────────────────────────────────── */
.key.selected {
  border-color: var(--accent) !important;
  background: rgba(0, 212, 255, 0.08) !important;
}

.key.selected::after { opacity: 0.6; }

/* ── Animations ─────────────────────────────────────────────── */
@keyframes fadein {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: none; }
}

/* ── Drag states ────────────────────────────────────────────── */
.key.dragging    { opacity: 0.35; }
.lib-card.dragging { opacity: 0.45; }

.key.drag-over {
  border-color: var(--accent) !important;
  background: rgba(0, 212, 255, 0.18) !important;
  box-shadow: 0 0 0 2px var(--accent-glow), inset 0 0 16px rgba(0,212,255,0.1) !important;
}

/* ── Preset bar ─────────────────────────────────────────────── */
.preset-bar {
  display: flex;
  align-items: center;
  gap: 3px;
}

.preset-select {
  background: var(--surface2);
  border: 1px solid var(--surface3);
  color: var(--text);
  font: 0.75rem var(--font);
  padding: 5px 8px;
  border-radius: 4px;
  cursor: pointer;
  outline: none;
  max-width: 120px;
  height: 32px;
  transition: border-color 0.15s;
}

.preset-select:focus { border-color: var(--accent); }
.preset-select option { background: var(--surface2); }

.preset-btn {
  width: 32px;
  height: 32px;
  background: var(--surface2);
  border: 1px solid var(--surface3);
  border-radius: 4px;
  color: var(--text-2);
  font: 600 0.8rem var(--font);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
  text-decoration: none;
}

.preset-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-dim);
}

/* ── Context menu ───────────────────────────────────────────── */
.ctx-menu {
  position: fixed;
  z-index: 10000;
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 7px;
  padding: 4px 0;
  min-width: 180px;
  box-shadow:
    0 4px 6px -1px rgba(0,0,0,0.6),
    0 12px 40px rgba(0,0,0,0.5),
    0 0 0 1px rgba(0,0,0,0.4),
    inset 0 1px 0 rgba(255,255,255,0.04);
  font-family: var(--font);
  font-size: 0.82rem;
  display: none;
  animation: ctx-appear 0.1s ease;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

@keyframes ctx-appear {
  from { opacity: 0; transform: scale(0.94) translateY(-6px); }
  to   { opacity: 1; transform: none; }
}

.ctx-header {
  padding: 8px 12px 6px;
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
}

.ctx-key-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  background: var(--surface3);
  border-radius: 4px;
  border: 1px solid var(--surface3);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--accent);
  flex-shrink: 0;
}

.ctx-sound-name {
  color: var(--text);
  font-size: 0.82rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ctx-no-sound { color: var(--text-3); font-size: 0.76rem; }

.ctx-sep {
  height: 1px;
  background: rgba(255,255,255,0.06);
  margin: 3px 0;
}

.ctx-section { padding: 4px 0; }

.ctx-section-label {
  display: block;
  padding: 2px 12px 4px;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-3);
  text-transform: uppercase;
}

.ctx-item {
  padding: 6px 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-2);
  transition: background 0.08s, color 0.08s;
  letter-spacing: 0.04em;
  user-select: none;
}

.ctx-item:hover { background: var(--surface2); color: var(--text); }
.ctx-item.active { color: var(--accent); }

.ctx-radio-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1.5px solid var(--text-3);
  flex-shrink: 0;
  transition: border-color 0.1s, background 0.1s, box-shadow 0.1s;
}

.ctx-item.active .ctx-radio-dot {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
}

.ctx-mode-label { font-weight: 600; flex-shrink: 0; }

.ctx-mode-desc {
  color: var(--text-3);
  font-size: 0.68rem;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.ctx-colors { padding: 4px 12px 8px; }

.ctx-swatches {
  display: flex;
  gap: 6px;
  margin-top: 5px;
  flex-wrap: wrap;
}

.ctx-swatch {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.1s, border-color 0.15s;
  outline: none;
}

.ctx-swatch:hover   { transform: scale(1.2); }
.ctx-swatch.active  { border-color: rgba(255,255,255,0.9); }

.ctx-danger { color: var(--text-3) !important; }
.ctx-danger:hover { color: #ef4444 !important; background: rgba(239,68,68,0.08) !important; }
.ctx-danger span  { font-size: 0.76rem; opacity: 0.7; }

/* ── Key playing state ──────────────────────────────────────── */
.key.playing .key-color-strip {
  opacity: 1 !important;
  animation: strip-glow 0.7s ease-in-out infinite alternate;
}

@keyframes strip-glow {
  from { box-shadow: 0 0 4px var(--key-accent); }
  to   { box-shadow: 0 0 14px var(--key-accent), 0 0 28px var(--key-accent); }
}

.key.playing::after {
  opacity: 0.25;
  animation: key-aura 0.7s ease-in-out infinite alternate;
}

@keyframes key-aura {
  from { opacity: 0.15; }
  to   { opacity: 0.4; }
}

/* ── Lib REC button ─────────────────────────────────────────── */
.lib-rec-btn {
  flex-shrink: 0;
  background: none;
  border: 1px solid rgba(239,68,68,0.35);
  border-radius: 4px;
  color: #ef4444;
  font: 600 0.72rem var(--font);
  padding: 5px 9px;
  cursor: pointer;
  letter-spacing: 0.06em;
  transition: background 0.15s, border-color 0.15s;
  height: 32px;
}
.lib-rec-btn:hover { background: rgba(239,68,68,0.1); border-color: #ef4444; }

/* ── Mic Recorder modal ─────────────────────────────────────── */
.mic-modal {
  position: fixed;
  inset: 0;
  z-index: 8000;
  background: rgba(6,8,13,0.88);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.mic-inner {
  width: min(520px, 94vw);
  background: var(--surface);
  border: 1px solid rgba(239,68,68,0.2);
  border-radius: 8px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(0,0,0,0.5),
    0 24px 60px rgba(0,0,0,0.7),
    0 0 40px rgba(239,68,68,0.05);
  display: flex;
  flex-direction: column;
}

.mic-hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid var(--surface3);
  background: var(--surface2);
}

.mic-title {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: #ef4444;
}

.mic-x {
  background: var(--surface2);
  border: 1px solid var(--surface3);
  border-radius: 4px;
  color: var(--text-2);
  font: 0.8rem var(--font);
  width: 30px;
  height: 30px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mic-x:hover { color: var(--text); border-color: var(--text-2); }

.mic-canvas {
  width: 100%;
  height: 120px;
  display: block;
  background: var(--bg2);
}

.mic-body {
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: var(--surface);
}

.mic-rec-status {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
}

.mic-rec-dot {
  color: #ef4444;
  animation: rec-blink 0.8s ease-in-out infinite;
}
@keyframes rec-blink { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

.mic-rec-label { color: var(--text-2); font-size: 0.72rem; }

.mic-timer {
  color: #ef4444;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  margin-left: auto;
}

.mic-btn-row {
  display: flex;
  gap: 8px;
}

.mic-btn {
  padding: 6px 14px;
  border-radius: 4px;
  font: 600 0.6rem var(--font);
  letter-spacing: 0.08em;
  border: 1px solid var(--surface3);
  background: var(--surface2);
  color: var(--text-2);
  cursor: pointer;
  transition: all 0.12s;
}
.mic-btn:hover { color: var(--text); border-color: var(--text-2); }
.mic-btn:disabled { opacity: 0.4; cursor: not-allowed; }

.mic-stop { color: #ef4444; border-color: rgba(239,68,68,0.3); }
.mic-stop:hover { background: rgba(239,68,68,0.1); border-color: #ef4444; }

.mic-save { color: var(--accent); border-color: rgba(0,212,255,0.3); }
.mic-save:hover { background: var(--accent-dim); border-color: var(--accent); }

.mic-prev-btn { color: var(--text); }

.mic-done-row, .mic-name-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.mic-dur-label { color: var(--text-2); font-size: 0.76rem; letter-spacing: 0.06em; }

.mic-field-label {
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-3);
  flex-shrink: 0;
}

.mic-name-in {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--surface3);
  border-radius: 3px;
  color: var(--text);
  font: 0.65rem var(--font);
  padding: 5px 8px;
  outline: none;
}
.mic-name-in:focus { border-color: var(--accent); }

.mic-error {
  color: #ef4444;
  font-size: 0.76rem;
  padding: 8px 0;
  letter-spacing: 0.04em;
}

/* ── Sound Editor overlay ───────────────────────────────────── */
.editor-overlay[hidden], .mic-modal[hidden] { display: none !important; }

.editor-overlay {
  position: fixed;
  inset: 0;
  z-index: 5000;
  background: rgba(6,8,13,0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}

.editor {
  display: flex;
  flex-direction: column;
  width: min(900px, 96vw);
  height: min(680px, 92vh);
  background: var(--surface);
  border: 1px solid var(--surface3);
  border-radius: 10px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(0,0,0,0.6),
    0 32px 80px rgba(0,0,0,0.7),
    0 0 60px rgba(0,212,255,0.04);
  font-family: var(--font);
}

/* Editor header */
.editor-header {
  display: flex;
  align-items: center;
  gap: 12px;
  height: var(--header-h);
  padding: 0 16px;
  background: var(--surface);
  border-bottom: 1px solid var(--surface3);
  flex-shrink: 0;
}

.editor-header::after {
  content: '';
  position: absolute;
  top: var(--header-h);
  left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,212,255,0.12), transparent);
}

.editor-back {
  background: var(--surface2);
  border: 1px solid var(--surface3);
  border-radius: 4px;
  color: var(--text);
  font: 0.78rem var(--font);
  padding: 7px 14px;
  cursor: pointer;
  letter-spacing: 0.06em;
  transition: color 0.15s, border-color 0.15s;
  flex-shrink: 0;
  min-height: 34px;
}
.editor-back:hover { color: var(--accent); border-color: var(--accent); }

.editor-title {
  flex: 1;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.04em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.editor-header-right {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.editor-btn {
  padding: 5px 12px;
  border-radius: 4px;
  font: 600 0.6rem var(--font);
  letter-spacing: 0.08em;
  border: 1px solid var(--surface3);
  background: var(--surface2);
  color: var(--text-2);
  cursor: pointer;
  transition: all 0.12s;
  white-space: nowrap;
}
.editor-btn:hover { color: var(--text); border-color: var(--text-2); }
.editor-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.editor-btn.active { color: var(--accent); border-color: var(--accent); background: var(--accent-dim); }

.ed-play-btn { color: var(--accent); border-color: rgba(0,212,255,0.3); }
.ed-play-btn:hover { background: var(--accent-dim); border-color: var(--accent); }

.ed-bake-btn { color: var(--accent2); border-color: rgba(124,58,237,0.3); }
.ed-bake-btn:hover { background: rgba(124,58,237,0.1); border-color: var(--accent2); }

/* Waveform zone */
.editor-wave-zone {
  flex: 1;
  max-height: 220px;
  display: flex;
  flex-direction: column;
  background: var(--bg2);
  position: relative;
  overflow: hidden;
  min-height: 0;
}

.editor-canvas {
  flex: 1;
  display: block;
  cursor: crosshair;
}

.editor-ruler {
  height: 22px;
  background: var(--surface);
  border-top: 1px solid var(--surface3);
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.editor-ruler span {
  position: absolute;
  transform: translateX(-50%);
  font: 0.48rem var(--font);
  color: var(--text-3);
  top: 5px;
  pointer-events: none;
  white-space: nowrap;
}

/* Controls */
.editor-controls {
  display: flex;
  align-items: stretch;
  gap: 0;
  background: var(--surface);
  border-top: 1px solid var(--surface3);
  flex-shrink: 0;
}

.editor-trim-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 14px 20px;
  border-right: 1px solid var(--surface3);
  min-width: 160px;
}

.trim-stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.trim-label {
  font-size: 0.64rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-3);
  min-width: 52px;
}

.trim-val {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.editor-sliders {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
  padding: 14px 24px;
}

.ctrl-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ctrl-label {
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-3);
  min-width: 50px;
}

.ctrl-slider {
  flex: 1;
  -webkit-appearance: none;
  appearance: none;
  height: 3px;
  background: var(--surface3);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

.ctrl-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
  cursor: pointer;
  transition: transform 0.1s;
}
.ctrl-slider::-webkit-slider-thumb:hover { transform: scale(1.3); }

#ed-stretch::-webkit-slider-thumb { background: var(--accent2); box-shadow: 0 0 6px rgba(124,58,237,0.5); }
#ed-gain::-webkit-slider-thumb    { background: #10b981; box-shadow: 0 0 6px rgba(16,185,129,0.5); }

.ed-precise-status {
  flex: 1;
  font-size: 0.66rem;
  color: var(--text-3);
  letter-spacing: 0.04em;
  transition: color 0.2s;
}

.ctrl-val {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-2);
  min-width: 60px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* Status bar */
.editor-status {
  height: 22px;
  padding: 0 16px;
  background: var(--surface2);
  border-top: 1px solid var(--surface3);
  display: flex;
  align-items: center;
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--text-3);
  flex-shrink: 0;
}

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: var(--surface); }
::-webkit-scrollbar-thumb { background: var(--surface3); border-radius: 2px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }