/* ============================================================
   THE MARIMBA STUDIO — TMS DAW (studio.css)
   Aesthetic: Obsidian DAW — Logic Pro / GarageBand dark
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ── CSS Custom Properties ─────────────────────────────────── */
:root {
  /* Core palette */
  --bg-deepest:    #060609;
  --bg-base:       #0a0a0f;
  --bg-surface:    #111118;
  --bg-panel:      #141420;
  --bg-track:      #0d0d1a;
  --bg-track-alt:  #0f0f1e;
  --bg-track-active: #1a1a30;
  --bg-elevated:   #1e1e2e;
  --bg-hover:      #242438;

  /* Border */
  --border-hair:   rgba(255,255,255,0.04);
  --border-subtle: rgba(255,255,255,0.07);
  --border-mid:    rgba(255,255,255,0.12);
  --border-strong: rgba(255,255,255,0.2);

  /* Accent gradient (project's existing palette) */
  --grad-main: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
  --grad-blue: #667eea;
  --grad-mid:  #764ba2;
  --grad-pink: #f093fb;

  /* Status colors */
  --col-record:  #ef4444;
  --col-play:    #4ade80;
  --col-stop:    #94a3b8;
  --col-armed:   #f87171;
  --col-mute:    #fbbf24;
  --col-solo:    #60a5fa;
  --col-midi:    #a78bfa;

  /* VU meter colors */
  --vu-low:    #22c55e;
  --vu-mid:    #fbbf24;
  --vu-high:   #ef4444;

  /* Text */
  --text-primary:   rgba(255,255,255,0.92);
  --text-secondary: rgba(255,255,255,0.60);
  --text-muted:     rgba(255,255,255,0.35);
  --text-accent:    #c4b5fd;

  /* Dimensions */
  --transport-h:    58px;
  --header-w:       262px;
  --instrument-h:   250px;
  --track-h:        80px;
  --ruler-h:        28px;
  --scrollbar-w:    6px;

  /* Fonts */
  --font-ui:    'Inter', sans-serif;
  --font-mono:  'JetBrains Mono', monospace;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.5);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.6);
  --shadow-lg:  0 12px 40px rgba(0,0,0,0.8);
  --glow-record: 0 0 12px rgba(239,68,68,0.5), 0 0 30px rgba(239,68,68,0.2);
  --glow-play:   0 0 12px rgba(74,222,128,0.4), 0 0 24px rgba(74,222,128,0.15);
  --glow-accent: 0 0 16px rgba(102,126,234,0.4);
}

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

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg-deepest);
  font-family: var(--font-ui);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

/* ── Mobile Fallback ────────────────────────────────────────── */
#mobile-fallback {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--bg-base);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  text-align: center;
  padding: 40px 24px;
  z-index: 9999;
}

#mobile-fallback img {
  width: 72px;
  height: 72px;
  object-fit: contain;
  filter: drop-shadow(0 0 20px rgba(102,126,234,0.6));
}

#mobile-fallback h1 {
  font-size: 1.6rem;
  font-weight: 700;
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

#mobile-fallback h2 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

#mobile-fallback p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 300px;
}

#mobile-fallback .mobile-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: rgba(102,126,234,0.12);
  border: 1px solid rgba(102,126,234,0.25);
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--text-accent);
  font-weight: 500;
  letter-spacing: 0.04em;
}

/* ── Loading Screen ─────────────────────────────────────────── */
#studio-loading {
  position: fixed;
  inset: 0;
  background: var(--bg-deepest);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  z-index: 8888;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#studio-loading.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loading-logo {
  width: 64px;
  height: 64px;
  object-fit: contain;
  animation: loadPulse 2s ease-in-out infinite;
}

@keyframes loadPulse {
  0%, 100% { filter: drop-shadow(0 0 10px rgba(102,126,234,0.4)); opacity: 0.9; }
  50%       { filter: drop-shadow(0 0 25px rgba(240,147,251,0.7)); opacity: 1; }
}

.loading-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.loading-bar-wrap {
  width: 200px;
  height: 3px;
  background: rgba(255,255,255,0.06);
  border-radius: 999px;
  overflow: hidden;
}

.loading-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--grad-main);
  border-radius: 999px;
  transition: width 0.3s ease;
}

.loading-status {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}

/* ── Studio Access Gate ────────────────────────────────────── */
#studio-access-gate {
  position: fixed;
  inset: 0;
  z-index: 8900;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
  background:
    linear-gradient(145deg, rgba(11,13,24,0.96), rgba(8,8,12,0.98)),
    var(--bg-deepest);
}

#studio-access-gate[hidden] {
  display: none;
}

.studio-access-panel {
  width: min(440px, 100%);
  padding: 34px 32px 30px;
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  background: var(--bg-panel);
  box-shadow: var(--shadow-lg);
  text-align: center;
}

.studio-access-logo {
  width: 68px;
  height: 68px;
  object-fit: contain;
  margin-bottom: 18px;
  filter: drop-shadow(0 0 20px rgba(102,126,234,0.45));
}

.studio-access-kicker {
  margin-bottom: 8px;
  color: var(--text-accent);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.studio-access-panel h1 {
  margin-bottom: 12px;
  color: var(--text-primary);
  font-size: 1.45rem;
  line-height: 1.2;
}

.studio-access-panel p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.65;
}

.studio-access-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.studio-access-actions .btn-primary,
.studio-access-actions .btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 104px;
  text-decoration: none;
}

/* ── Studio Shell ───────────────────────────────────────────── */
#studio-app {
  display: none;
}

body.studio-access-granted #studio-app {
  display: flex;
}
#studio-app {
  flex-direction: column;
  height: 100vh;
  background: var(--bg-base);
}

/* ============================================================
   TRANSPORT BAR
   ============================================================ */
#transport-bar {
  flex: 0 0 var(--transport-h);
  height: var(--transport-h);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0 12px;
  position: relative;
  z-index: 100;
  box-shadow: 0 2px 20px rgba(0,0,0,0.6);
  overflow: visible;
}

/* subtle gradient line at bottom of transport */
#transport-bar::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(102,126,234,0.4), rgba(240,147,251,0.3), transparent);
}

/* Transport sections */
.transport-section {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 8px;
  flex: 0 0 auto;
}

.transport-section + .transport-section {
  border-left: 1px solid var(--border-subtle);
}

/* Transport buttons */
.t-btn {
  width: 34px;
  height: 34px;
  border: none;
  border-radius: 8px;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: all 0.15s ease;
  position: relative;
  border: 1px solid var(--border-hair);
}

.t-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  border-color: var(--border-subtle);
  transform: translateY(-1px);
}

.t-btn:active {
  transform: translateY(0);
}

.t-btn-mini {
  width: auto;
  min-width: 54px;
  padding: 0 10px;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

#btn-save-session.saving {
  background: rgba(96,165,250,0.18);
  border-color: rgba(96,165,250,0.36);
  color: #93c5fd;
  box-shadow: 0 0 0 1px rgba(96,165,250,0.14) inset, 0 0 18px rgba(96,165,250,0.18);
}

#btn-save-session.saved {
  background: rgba(74,222,128,0.16);
  border-color: rgba(74,222,128,0.34);
  color: #86efac;
  box-shadow: 0 0 0 1px rgba(74,222,128,0.12) inset, 0 0 18px rgba(74,222,128,0.16);
}

/* Rewind */
#btn-rewind { font-size: 12px; }
#btn-rewind:hover { color: var(--col-stop); }

/* Record */
#btn-record {
  background: rgba(239,68,68,0.1);
  border-color: rgba(239,68,68,0.2);
  color: var(--col-record);
  width: 36px;
  height: 36px;
}

#btn-record:hover, #btn-record.active {
  background: var(--col-record);
  color: white;
  box-shadow: var(--glow-record);
  border-color: var(--col-record);
}

#btn-record.recording {
  background: var(--col-record);
  color: white;
  box-shadow: var(--glow-record);
  border-color: var(--col-record);
  animation: recordPulse 1.1s ease-in-out infinite;
}

@keyframes recordPulse {
  0%, 100% { box-shadow: var(--glow-record); }
  50%       { box-shadow: 0 0 20px rgba(239,68,68,0.8), 0 0 50px rgba(239,68,68,0.3); }
}

/* Stop */
#btn-stop { color: var(--col-stop); }
#btn-stop:hover { color: white; background: rgba(148,163,184,0.15); }

/* Play */
#btn-play {
  background: rgba(74,222,128,0.1);
  border-color: rgba(74,222,128,0.2);
  color: var(--col-play);
  width: 36px;
  height: 36px;
}

#btn-play:hover, #btn-play.playing {
  background: var(--col-play);
  color: #0a0a0f;
  box-shadow: var(--glow-play);
  border-color: var(--col-play);
}

/* Time display */
.transport-time {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.05em;
  min-width: 80px;
  text-align: center;
  background: var(--bg-panel);
  padding: 6px 12px;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  cursor: default;
}

.transport-time span.t-sep { color: var(--text-muted); }

/* BPM control */
.bpm-wrap {
  display: flex;
  align-items: center;
  gap: 6px;
}

.bpm-label {
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.bpm-display {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 5px 10px;
  width: 60px;
  text-align: center;
  cursor: ns-resize;
  transition: all 0.15s ease;
}

.bpm-display:hover {
  border-color: rgba(102,126,234,0.4);
  color: var(--grad-blue);
}

/* Time signature */
.ts-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  padding: 3px 10px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.ts-wrap:hover { border-color: rgba(102,126,234,0.4); }

.ts-num, .ts-den {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.ts-divider {
  width: 20px;
  height: 1px;
  background: var(--border-mid);
  margin: 2px 0;
}

/* Toggle buttons (metronome, loop, count-in, snap) */
.t-toggle {
  height: 28px;
  padding: 0 10px;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}

.t-toggle:hover { color: var(--text-secondary); border-color: var(--border-mid); }

.t-toggle.active {
  background: rgba(102,126,234,0.15);
  border-color: rgba(102,126,234,0.4);
  color: #818cf8;
}

.t-toggle.active-record {
  background: rgba(239,68,68,0.12);
  border-color: rgba(239,68,68,0.35);
  color: var(--col-record);
}

/* Tap tempo */
#btn-tap {
  height: 28px;
  padding: 0 10px;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.12s ease;
}

#btn-tap:active {
  background: rgba(102,126,234,0.2);
  border-color: rgba(102,126,234,0.5);
  color: #818cf8;
  transform: scale(0.96);
}

/* Master volume */
.master-vol-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.master-vol-wrap input[type="range"] {
  width: 130px;
  height: 3px;
  border-radius: 999px;
  outline: none;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background: rgba(255,255,255,0.15);
}

.master-vol-label {
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Transport right side: MIDI status, save, fullscreen */
.transport-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

.transport-menu-section {
  position: relative;
}

.transport-menu {
  position: relative;
  flex: 0 0 auto;
}

.transport-menu-trigger {
  height: 32px;
  min-width: 78px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  list-style: none;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  background: var(--bg-elevated);
  color: var(--text-secondary);
  padding: 0 11px;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  user-select: none;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.transport-menu-trigger::-webkit-details-marker {
  display: none;
}

.transport-menu-trigger::after {
  content: '';
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  opacity: 0.7;
}

.transport-menu[open] > .transport-menu-trigger,
.transport-menu-trigger:hover {
  background: var(--bg-hover);
  border-color: var(--border-mid);
  color: var(--text-primary);
}

.transport-menu-panel {
  position: absolute;
  top: calc(100% + 10px);
  min-width: 300px;
  padding: 13px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  background: rgba(20,20,32,0.98);
  box-shadow: 0 18px 42px rgba(0,0,0,0.62);
  z-index: 3000;
}

.transport-controls-panel {
  left: 0;
  width: 410px;
  display: grid;
  gap: 12px;
}

.transport-tools-panel {
  right: 0;
  width: 220px;
  display: grid;
  gap: 8px;
}

.transport-menu-group {
  display: grid;
  gap: 7px;
}

.transport-menu-label,
.transport-field > span {
  color: var(--text-muted);
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.transport-menu-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.transport-menu-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(94px, 0.75fr);
  gap: 10px;
}

.transport-field {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.transport-field .studio-select {
  width: 100%;
}

.transport-tool-btn {
  width: 100%;
  height: 34px;
  justify-content: flex-start;
  padding: 0 11px;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.transport-tool-accent {
  background: rgba(102,126,234,0.1);
  border-color: rgba(102,126,234,0.25);
  color: #818cf8;
}

.transport-tool-success {
  background: rgba(74,222,128,0.1);
  border-color: rgba(74,222,128,0.25);
  color: #86efac;
}

@media (max-width: 1180px) {
  .transport-time {
    font-size: 1.05rem;
    min-width: 72px;
    padding-left: 9px;
    padding-right: 9px;
  }

  #transport-clock {
    display: none;
  }

  .bpm-display {
    width: 54px;
  }

  .session-save-chip {
    min-width: 74px;
  }
}

.session-save-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 88px;
  height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.04);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.48);
  transition: all 0.2s ease;
}

.session-save-chip.saved {
  border-color: rgba(74,222,128,0.24);
  background: rgba(74,222,128,0.08);
  color: #86efac;
}

.session-save-chip.saving {
  border-color: rgba(251,191,36,0.24);
  background: rgba(251,191,36,0.08);
  color: #fde68a;
}

.session-save-chip.dirty {
  border-color: rgba(244,114,182,0.24);
  background: rgba(244,114,182,0.08);
  color: #f9a8d4;
}

.midi-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all 0.3s ease;
}

.midi-badge.midi-unsupported { background: rgba(148,163,184,0.06); border-color: rgba(148,163,184,0.15); color: rgba(148,163,184,0.4); }
.midi-badge.midi-connected   { background: rgba(74,222,128,0.08); border-color: rgba(74,222,128,0.25); color: #4ade80; }
.midi-badge.midi-waiting     { background: rgba(251,191,36,0.08); border-color: rgba(251,191,36,0.25); color: #fbbf24; animation: midiBlink 1.2s ease-in-out infinite; }
.midi-badge.midi-denied      { background: rgba(239,68,68,0.08); border-color: rgba(239,68,68,0.25); color: #f87171; }

@keyframes midiBlink {
  0%, 100% { opacity: 1; } 50% { opacity: 0.4; }
}

.midi-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.master-meter {
  width: 16px;
  height: 30px;
  display: flex;
  align-items: flex-end;
  gap: 2px;
  padding: 3px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.04);
}

.master-meter-bar {
  flex: 1;
  height: 10%;
  border-radius: 999px;
  background: linear-gradient(to top, var(--vu-low), var(--vu-mid), var(--vu-high));
  transition: height 0.08s linear;
}

/* ============================================================
   MAIN DAW BODY (headers + timeline)
   ============================================================ */
#daw-body {
  flex: 1;
  display: flex;
  overflow: hidden;
  position: relative;
}

/* ── Track Headers Panel ────────────────────────────────────── */
#track-headers {
  flex: 0 0 var(--header-w);
  width: var(--header-w);
  background: var(--bg-panel);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: none;
  position: relative;
  z-index: 10;
}

#track-headers::-webkit-scrollbar { display: none; }

/* Ruler spacer above track headers */
.track-header-ruler-spacer {
  flex: 0 0 var(--ruler-h);
  height: var(--ruler-h);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 8px;
}

.ruler-spacer-label {
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ── Track Header Card ──────────────────────────────────────── */
.track-header {
  flex: 0 0 var(--track-h);
  height: var(--track-h);
  border-bottom: 1px solid var(--border-hair);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 8px 10px;
  cursor: pointer;
  position: relative;
  transition: background 0.15s ease;
  background: var(--bg-track);
}

.track-header:nth-child(even) { background: var(--bg-track-alt); }
.track-header:hover { background: var(--bg-hover); }
.track-header.active { background: var(--bg-track-active); }

/* Track color stripe on left */
.track-header::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--track-color, var(--grad-blue));
  border-radius: 0 2px 2px 0;
}

.track-header.active::before {
  width: 4px;
  box-shadow: 2px 0 8px var(--track-color, var(--grad-blue));
}

/* Track header row 1: name + instrument badge */
.th-row1 {
  display: flex;
  align-items: center;
  gap: 6px;
}

.track-submeta {
  margin-top: 4px;
  font-size: 0.58rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

.track-name {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: text;
  outline: none;
}

.track-name:focus {
  background: rgba(102,126,234,0.1);
  border-radius: 3px;
  padding: 0 4px;
  cursor: text;
}

.instrument-badge {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 7px;
  border-radius: 4px;
  border: 1px solid;
  white-space: nowrap;
  flex-shrink: 0;
}

.instrument-badge.alto   { background: rgba(102,126,234,0.12); border-color: rgba(102,126,234,0.3); color: #818cf8; }
.instrument-badge.tenor  { background: rgba(240,147,251,0.1);  border-color: rgba(240,147,251,0.3); color: #f093fb; }
.instrument-badge.bass   { background: rgba(74,222,128,0.08);  border-color: rgba(74,222,128,0.25); color: #4ade80; }
.instrument-badge.drums  { background: rgba(251,113,133,0.1); border-color: rgba(251,113,133,0.32); color: #fda4af; }

/* Track header row 2: R/M/S buttons */
.th-row2 {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* R/M/S buttons */
.rms-btn {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  font-size: 0.58rem;
  font-weight: 800;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.12s ease;
  letter-spacing: 0;
  color: var(--text-muted);
  flex-shrink: 0;
}

.rms-btn:hover { border-color: var(--border-mid); color: var(--text-secondary); transform: scale(1.05); }

.rms-btn.arm         { color: var(--col-record); border-color: rgba(239,68,68,0.25); background: rgba(239,68,68,0.08); }
.rms-btn.arm.active  { background: var(--col-record); color: white; box-shadow: 0 0 8px rgba(239,68,68,0.5); border-color: var(--col-record); }
.rms-btn.mute.active { background: var(--col-mute); color: #0a0a0f; border-color: var(--col-mute); }
.rms-btn.solo.active { background: var(--col-solo); color: white; border-color: var(--col-solo); }

/* Volume fader */
.th-fader-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 5px;
  margin-left: 2px;
}

.th-fader-wrap input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 3px;
  border-radius: 999px;
  background: var(--border-mid);
  outline: none;
  cursor: pointer;
}

.th-fader-wrap input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--text-secondary);
  border: 1px solid rgba(255,255,255,0.3);
  cursor: pointer;
  transition: all 0.15s ease;
}

.th-fader-wrap input[type="range"]::-webkit-slider-thumb:hover {
  background: white;
  transform: scale(1.2);
}

/* Pan knob */
.pan-knob-wrap {
  display: flex;
  align-items: center;
  gap: 3px;
  flex-shrink: 0;
}

.pan-knob {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--bg-elevated), var(--bg-panel));
  border: 1px solid var(--border-mid);
  position: relative;
  cursor: ns-resize;
  transition: border-color 0.15s ease;
}

.pan-knob:hover { border-color: rgba(102,126,234,0.5); }

.pan-knob-dot {
  position: absolute;
  width: 2px; height: 7px;
  background: var(--text-secondary);
  border-radius: 1px;
  left: 50%; top: 3px;
  transform-origin: bottom center;
  transform: translateX(-50%) rotate(0deg);
  transition: transform 0.05s linear;
}

.pan-label {
  font-size: 0.55rem;
  font-weight: 700;
  color: var(--text-muted);
  font-family: var(--font-mono);
  min-width: 18px;
  text-align: center;
}

/* VU meter */
.th-vu {
  display: flex;
  gap: 2px;
  align-items: flex-end;
  height: 22px;
  flex-shrink: 0;
}

.vu-bar {
  width: 4px;
  border-radius: 2px;
  background: var(--vu-low);
  height: 0%;
  transition: height 0.05s ease;
}

.vu-bar:nth-child(2) { background: linear-gradient(to top, var(--vu-low), var(--vu-mid)); }
.vu-bar:nth-child(3) { background: linear-gradient(to top, var(--vu-mid), var(--vu-high)); }
.vu-bar:nth-child(4) { background: var(--vu-high); }

/* Effects toggle per track */
.th-fx-btn {
  height: 18px;
  padding: 0 7px;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
  background: none;
  color: var(--text-muted);
  font-size: 0.56rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.12s ease;
  flex-shrink: 0;
}

.th-fx-btn:hover, .th-fx-btn.active {
  background: rgba(118,75,162,0.15);
  border-color: rgba(118,75,162,0.4);
  color: #c084fc;
}

/* Add Track button */
#add-track-btn {
  flex: 0 0 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  border: none;
  background: none;
  border-top: 1px solid var(--border-hair);
  transition: all 0.15s ease;
  width: 100%;
}

#add-track-btn:hover {
  color: var(--text-secondary);
  background: var(--bg-hover);
}

#add-track-btn svg { transition: transform 0.2s ease; }
#add-track-btn:hover svg { transform: rotate(90deg); }

/* ============================================================
   TIMELINE / ARRANGEMENT VIEW
   ============================================================ */
#timeline-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
}

#timeline-canvas {
  flex: 1;
  width: 100%;
  cursor: crosshair;
  display: block;
}

#timeline-hscroll {
  height: 10px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border-hair);
  cursor: default;
  position: relative;
}

#timeline-hscroll-thumb {
  position: absolute;
  height: 6px;
  top: 2px;
  min-width: 40px;
  background: rgba(255,255,255,0.12);
  border-radius: 999px;
  cursor: grab;
  transition: background 0.15s ease;
}

#timeline-hscroll-thumb:hover, #timeline-hscroll-thumb:active { background: rgba(255,255,255,0.22); }
#timeline-hscroll-thumb:active { cursor: grabbing; }

/* Zoom buttons overlay */
.zoom-controls {
  position: absolute;
  bottom: 14px;
  right: 14px;
  display: flex;
  gap: 4px;
  z-index: 20;
}

.zoom-btn {
  width: 26px; height: 26px;
  border-radius: 6px;
  border: 1px solid var(--border-mid);
  background: rgba(20,20,32,0.85);
  backdrop-filter: blur(8px);
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.12s ease;
}

.zoom-btn:hover { background: var(--bg-hover); border-color: rgba(102,126,234,0.4); color: #818cf8; }

/* ============================================================
   INSTRUMENT PANEL (bottom)
   ============================================================ */
#instrument-panel {
  flex: 0 0 var(--instrument-h);
  height: var(--instrument-h);
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  position: relative;
  z-index: 50;
  box-shadow: 0 -4px 30px rgba(0,0,0,0.5);
}

/* Instrument panel header */
.instrument-panel-header {
  flex: 0 0 auto;
  min-height: 46px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  padding: 8px 14px;
  gap: 10px;
  border-bottom: 1px solid var(--border-hair);
  background: var(--bg-panel);
  overflow-x: auto;
  overflow-y: hidden;
}

/* Instrument tabs (Alto / Tenor / Bass quick-switch) */
.inst-tabs {
  display: flex;
  gap: 3px;
  align-items: center;
}
.inst-tab {
  height: 26px;
  padding: 0 12px;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.14s ease;
}
.inst-tab:hover {
  color: var(--text-secondary);
  border-color: var(--border-mid);
  background: var(--bg-elevated);
}
.inst-tab.active {
  background: linear-gradient(135deg, rgba(102,126,234,0.25), rgba(118,75,162,0.25));
  border-color: rgba(102,126,234,0.5);
  color: #a5b4fc;
}
.inst-tab.active.alto  { border-color: rgba(102,126,234,0.55); color: #a5b4fc; }
.inst-tab.active.tenor { border-color: rgba(240,147,251,0.55); color: #f0abfc; background: linear-gradient(135deg, rgba(240,147,251,0.18), rgba(118,75,162,0.18)); }
.inst-tab.active.bass  { border-color: rgba(74,222,128,0.5);   color: #86efac; background: linear-gradient(135deg, rgba(74,222,128,0.15), rgba(16,185,129,0.12)); }

.inst-panel-track-badge {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.inst-panel-track-badge .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--track-color, var(--grad-blue));
}

.inst-panel-session-meta {
  display: flex;
  align-items: center;
  gap: 6px;
}

.inst-meta-pill {
  height: 22px;
  padding: 0 8px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: rgba(255,255,255,0.04);
  display: inline-flex;
  align-items: center;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-secondary);
  white-space: nowrap;
}

/* Rumble/TRG/Hover controls */
.inst-play-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
  flex-shrink: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.inst-ctrl-btn {
  height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02));
  color: var(--text-muted);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.12s ease;
  white-space: nowrap;
}

.inst-ctrl-btn:hover {
  color: var(--text-secondary);
  border-color: var(--border-mid);
  transform: translateY(-1px);
}

.inst-ctrl-btn.active {
  background: rgba(102,126,234,0.15);
  border-color: rgba(102,126,234,0.4);
  color: #818cf8;
}

.inst-ctrl-btn.rumble-on {
  background: rgba(240,147,251,0.1);
  border-color: rgba(240,147,251,0.35);
  color: #f093fb;
  animation: rumbleFlash 0.6s ease-in-out infinite;
}

@keyframes rumbleFlash {
  0%, 100% { opacity: 1; } 50% { opacity: 0.6; }
}

/* Soprano ext toggle */
.soprano-ext-btn {
  height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px dashed var(--border-subtle);
  background: none;
  color: var(--text-muted);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.12s ease;
  white-space: nowrap;
}

.soprano-ext-btn:hover { border-color: var(--border-mid); color: var(--text-secondary); }
.soprano-ext-btn.active { border-color: #f093fb; color: #f093fb; background: rgba(240,147,251,0.06); }
.soprano-ext-btn.inactive { opacity: 0.55; }

/* ── Marimba Keys ───────────────────────────────────────────── */
#marimba-keys-container {
  flex: 1;
  display: flex;
  align-items: stretch;
  padding: 10px 14px 12px;
  gap: 4px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  transition: opacity 0.12s ease, transform 0.12s ease;
}

#marimba-keys-container::-webkit-scrollbar { display: none; }

/* Switch animation — triggered by JS */
#marimba-keys-container.inst-switching {
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
}

@keyframes keysSlideIn {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}
#marimba-keys-container.inst-entering {
  animation: keysSlideIn 0.18s cubic-bezier(0.22,1,0.36,1) both;
}

.studio-key {
  flex: 1 1 0;
  min-width: 46px;
  max-width: 110px;
  /* Tall keys — fill the instrument panel */
  border-radius: 8px 8px 12px 12px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding-bottom: 10px;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-mono);
  position: relative;
  transition: filter 0.06s ease, transform 0.06s ease, box-shadow 0.06s ease;
  border: 1px solid rgba(0,0,0,0.35);
  border-bottom: 3px solid rgba(0,0,0,0.45);
  box-shadow: 0 6px 14px rgba(0,0,0,0.45), inset 0 2px 0 rgba(255,255,255,0.18), inset 0 -1px 0 rgba(0,0,0,0.25);
  user-select: none;
  -webkit-user-select: none;
}

/* Bass keys: slightly wider feel */
.inst-bass .studio-key {
  max-width: 160px;
  font-size: 0.8rem;
}

.studio-key:hover {
  filter: brightness(1.22);
  transform: translateY(-3px) scaleY(1.01);
  box-shadow: 0 10px 22px rgba(0,0,0,0.55), inset 0 2px 0 rgba(255,255,255,0.25);
  z-index: 2;
}

.studio-key:active, .studio-key.pressed {
  filter: brightness(0.8);
  transform: translateY(2px) scaleY(0.98);
  box-shadow: 0 2px 6px rgba(0,0,0,0.6), inset 0 3px 6px rgba(0,0,0,0.35);
  border-bottom-width: 1px;
}

.studio-key.learning-active {
  filter: brightness(1.35);
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(0,0,0,0.6), 0 0 20px rgba(255,255,255,0.25), inset 0 2px 0 rgba(255,255,255,0.3);
}

.studio-key .key-note-label {
  color: rgba(255,255,255,0.85);
  text-shadow: 0 1px 3px rgba(0,0,0,0.9);
  letter-spacing: 0.02em;
  font-size: 0.73rem;
  line-height: 1;
}

.studio-key .key-kb-label {
  position: absolute;
  top: 8px;
  font-size: 0.55rem;
  color: rgba(255,255,255,0.38);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.studio-key.soprano-ext-key {
  opacity: 0.45;
  filter: saturate(0.4);
}

.studio-key.soprano-ext-key.soprano-visible {
  opacity: 1;
  filter: saturate(1);
}

/* ── Drum Machine ──────────────────────────────────────────── */
.inst-drums {
  align-items: stretch !important;
  justify-content: stretch !important;
  padding: 10px 12px !important;
}

.studio-drum-machine {
  width: 100%;
  height: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--text-secondary);
}

.drum-topbar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.drum-topbar label {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 26px;
  padding: 0 8px;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  background: rgba(255,255,255,0.04);
  color: var(--text-muted);
  font-size: 0.58rem;
  font-weight: 700;
  text-transform: uppercase;
}

.drum-topbar input[type="range"] { width: 64px; }
.drum-topbar select {
  background: var(--bg-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 5px;
  font-size: 0.62rem;
}

.drum-action {
  height: 26px;
  border-radius: 6px;
  border: 1px solid rgba(102,126,234,0.24);
  background: rgba(102,126,234,0.08);
  color: #a5b4fc;
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
}

.drum-action:hover { border-color: rgba(102,126,234,0.5); }
.drum-action.danger { color: #fda4af; border-color: rgba(251,113,133,0.24); background: rgba(251,113,133,0.08); }

.drum-body {
  min-height: 0;
  flex: 1;
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 10px;
}

.drum-pad-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  align-content: start;
}

.drum-trigger-pad {
  min-height: 35px;
  border: 1px solid color-mix(in srgb, var(--pad-color) 40%, transparent);
  border-radius: 7px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--pad-color) 22%, transparent), rgba(255,255,255,0.035));
  color: rgba(255,255,255,0.82);
  font-size: 0.62rem;
  font-weight: 800;
  text-transform: uppercase;
  cursor: pointer;
}

.drum-trigger-pad span {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.52rem;
  color: color-mix(in srgb, var(--pad-color) 70%, white);
}

.drum-trigger-pad.selected,
.drum-trigger-pad.playing {
  background: var(--pad-color);
  color: #080812;
  border-color: rgba(255,255,255,0.82);
  box-shadow: 0 0 0 1px rgba(255,255,255,0.55), 0 0 18px color-mix(in srgb, var(--pad-color) 36%, transparent);
  transform: translateY(-1px);
}

.drum-trigger-pad.selected span,
.drum-trigger-pad.playing span {
  color: rgba(0,0,0,0.74);
}

.drum-step-wrap {
  min-width: 0;
  overflow: auto;
  border: 1px solid var(--border-hair);
  border-radius: 8px;
  background: rgba(255,255,255,0.025);
}

.drum-step-header,
.drum-row {
  display: grid;
  grid-template-columns: 82px repeat(32, 22px);
  gap: 4px;
  align-items: center;
  min-width: max-content;
  padding: 3px 6px;
}

.drum-step-header {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #101018;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.52rem;
  border-bottom: 1px solid var(--border-hair);
}

.drum-step-header .bar { color: #a5b4fc; }

.drum-row-label {
  height: 22px;
  border: 0;
  border-radius: 5px;
  background: color-mix(in srgb, var(--pad-color) 14%, rgba(255,255,255,0.04));
  color: rgba(255,255,255,0.72);
  text-align: left;
  padding: 0 7px;
  font-size: 0.58rem;
  font-weight: 800;
  text-transform: uppercase;
  cursor: pointer;
}

.drum-row.selected .drum-row-label,
.drum-row-label.selected {
  color: #080812;
  background: var(--pad-color);
  box-shadow: inset 3px 0 0 rgba(255,255,255,0.72);
}

.drum-step {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  border: 1px solid rgba(255,255,255,0.07);
  background: rgba(255,255,255,0.035);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.drum-step:nth-child(4n + 2) { border-left-color: rgba(255,255,255,0.2); }
.drum-step.selected-row {
  border-color: color-mix(in srgb, var(--pad-color) 36%, rgba(255,255,255,0.16));
}
.drum-step.on,
.drum-step.active,
.drum-step[aria-pressed="true"],
.drum-pad.active {
  background: var(--pad-color) !important;
  border-color: rgba(255,255,255,0.92) !important;
  box-shadow: inset 0 0 0 2px rgba(255,255,255,0.52), 0 0 14px color-mix(in srgb, var(--pad-color) 45%, transparent) !important;
}
.drum-step.on::after,
.drum-step.active::after,
.drum-step[aria-pressed="true"]::after,
.drum-pad.active::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 3px;
  background: rgba(255,255,255,0.72);
  opacity: 0.38;
}
.drum-step.accent::after {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: 50%;
  background: rgba(255,255,255,0.84);
}
.drum-step.flam::before {
  content: "";
  position: absolute;
  left: 3px;
  right: 3px;
  bottom: 3px;
  height: 2px;
  border-radius: 999px;
  background: rgba(255,255,255,0.8);
}

.drum-param-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  min-height: 28px;
  overflow: hidden;
}

.drum-param-bar button,
.drum-param-bar span {
  flex: 0 0 auto;
  height: 24px;
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: rgba(255,255,255,0.04);
  color: var(--text-muted);
  padding: 0 8px;
  font-size: 0.55rem;
  font-weight: 800;
  text-transform: uppercase;
}

.drum-param-bar button.active { color: #86efac; border-color: rgba(74,222,128,0.35); background: rgba(74,222,128,0.08); }
.drum-feature-strip {
  min-width: 0;
  display: flex;
  gap: 5px;
  overflow: hidden;
}
.drum-feature-strip span {
  max-width: 130px;
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

/* Pressed animation */
@keyframes keyPress {
  0% { transform: translateY(2px) scaleY(0.98); filter: brightness(0.8); }
  100% { transform: translateY(0); filter: brightness(1); }
}

/* ============================================================
   EFFECTS PANEL (slide-in from right, per track)
   ============================================================ */
#effects-panel {
  position: fixed;
  top: var(--transport-h);
  right: -320px;
  width: 300px;
  bottom: var(--instrument-h);
  background: var(--bg-panel);
  border-left: 1px solid var(--border-subtle);
  z-index: 200;
  transition: right 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.1) transparent;
}

#effects-panel.open { right: 0; }

.fx-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  position: sticky;
  top: 0;
  z-index: 5;
}

.fx-panel-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.fx-panel-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 18px 0;
}

.fx-preset-select {
  min-width: 180px;
}

.fx-tool-btn {
  font-size: 0.62rem;
  padding: 7px 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.fx-tool-btn.active {
  border-color: rgba(102,126,234,0.45);
  color: #a5b4fc;
  background: rgba(102,126,234,0.12);
}

.fx-status-bar {
  margin: 12px 18px 0;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  background: rgba(255,255,255,0.03);
  color: var(--text-secondary);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.fx-close-btn {
  width: 24px; height: 24px;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.12s ease;
}

.fx-close-btn:hover { background: var(--bg-hover); color: var(--text-primary); }

/* Effects sections */
.fx-section {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-hair);
}

.fx-section-title {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.fx-section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-hair);
}

.fx-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.fx-row-label {
  font-size: 0.7rem;
  color: var(--text-secondary);
  min-width: 60px;
}

.fx-row-value {
  font-size: 0.65rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  min-width: 36px;
  text-align: right;
}

/* Effect sliders */
.fx-slider {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 3px;
  border-radius: 999px;
  background: var(--border-mid);
  outline: none;
  cursor: pointer;
  margin: 0 10px;
}

.fx-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: #818cf8;
  border: 1px solid rgba(255,255,255,0.2);
  cursor: pointer;
  transition: all 0.12s ease;
}

.fx-slider::-webkit-slider-thumb:hover {
  background: var(--grad-pink);
  transform: scale(1.2);
}

/* Effect power toggle */
.fx-power {
  width: 28px; height: 16px;
  border-radius: 999px;
  background: var(--border-mid);
  position: relative;
  cursor: pointer;
  transition: background 0.2s ease;
  flex-shrink: 0;
  border: none;
  outline: none;
}

.fx-power.on { background: #667eea; }

.fx-power::after {
  content: '';
  position: absolute;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: white;
  top: 2px; left: 2px;
  transition: left 0.2s ease;
  box-shadow: 0 1px 3px rgba(0,0,0,0.4);
}

.fx-power.on::after { left: 14px; }

/* EQ visualizer bar */
.eq-bars {
  display: flex;
  align-items: flex-end;
  gap: 2px;
  height: 30px;
  margin-bottom: 10px;
  padding: 0 2px;
}

.eq-bar {
  flex: 1;
  border-radius: 2px 2px 0 0;
  transition: height 0.15s ease;
  min-height: 2px;
}

.eq-bar:nth-child(-n+3)  { background: rgba(74,222,128,0.5); }
.eq-bar:nth-child(n+4):nth-child(-n+6) { background: rgba(96,165,250,0.5); }
.eq-bar:nth-child(n+7)   { background: rgba(240,147,251,0.5); }

/* Pitch shift */
.pitch-display {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  width: 50px;
  text-align: center;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 5px;
  padding: 3px 6px;
}

/* Rumble/TRG settings in FX panel */
.rumble-speed-display {
  font-family: var(--font-mono);
  min-width: 42px;
  height: 24px;
  padding: 0 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: rgba(255,255,255,0.04);
  font-size: 0.68rem;
  color: var(--text-muted);
}

/* ============================================================
   MODALS (bounce, session, templates, takes, shortcuts)
   ============================================================ */
.studio-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6,6,9,0.85);
  backdrop-filter: blur(6px);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.22s ease, visibility 0.22s ease;
}

.studio-modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.studio-modal {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  box-shadow: var(--shadow-lg);
  min-width: 360px;
  max-width: 500px;
  overflow: hidden;
  transform: scale(0.96) translateY(8px);
  transition: transform 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.studio-modal-overlay.open .studio-modal {
  transform: scale(1) translateY(0);
}

.studio-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-surface);
}

.studio-modal-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.modal-x {
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.12s ease;
}

.modal-x:hover { background: var(--bg-hover); color: var(--text-primary); }

.studio-modal-body {
  padding: 20px;
}

.studio-modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  background: var(--bg-surface);
}

/* Buttons */
.btn-primary {
  padding: 9px 20px;
  border-radius: 8px;
  border: none;
  background: var(--grad-main);
  color: white;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  letter-spacing: 0.02em;
}

.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); box-shadow: var(--glow-accent); }

.btn-secondary {
  padding: 9px 20px;
  border-radius: 8px;
  border: 1px solid var(--border-mid);
  background: var(--bg-elevated);
  color: var(--text-secondary);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-secondary:hover { background: var(--bg-hover); color: var(--text-primary); }

.btn-danger {
  padding: 9px 20px;
  border-radius: 8px;
  border: 1px solid rgba(239,68,68,0.25);
  background: rgba(239,68,68,0.08);
  color: var(--col-record);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-danger:hover { background: var(--col-record); color: white; border-color: var(--col-record); }

/* ── Bounce Modal specifics ─────────────────────────────────── */
.bounce-progress-wrap {
  height: 6px;
  background: var(--border-mid);
  border-radius: 999px;
  overflow: hidden;
  margin: 16px 0;
}

.bounce-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--grad-main);
  border-radius: 999px;
  transition: width 0.1s linear;
}

.bounce-status {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  text-align: center;
}

/* ── Session Notes ──────────────────────────────────────────── */
#session-notes-area {
  width: 100%;
  min-height: 100px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  padding: 10px 12px;
  resize: vertical;
  outline: none;
  line-height: 1.6;
}

#session-notes-area:focus { border-color: rgba(102,126,234,0.4); }

/* ── Template cards ─────────────────────────────────────────── */
.template-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.template-card {
  padding: 14px;
  border-radius: 10px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  cursor: pointer;
  transition: all 0.15s ease;
}

.template-card:hover {
  border-color: rgba(102,126,234,0.4);
  background: var(--bg-hover);
  transform: translateY(-2px);
}

.template-name {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.template-desc {
  font-size: 0.65rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── Takes panel ────────────────────────────────────────────── */
.take-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  margin-bottom: 8px;
  cursor: pointer;
  transition: all 0.12s ease;
}

.take-item:hover { border-color: rgba(102,126,234,0.3); background: var(--bg-hover); }
.take-item.active { border-color: rgba(102,126,234,0.5); background: rgba(102,126,234,0.08); }

.take-number {
  font-size: 0.7rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-muted);
  min-width: 28px;
}

.take-info { flex: 1; }

.take-name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
}

.take-meta {
  font-size: 0.62rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ── Keyboard shortcuts modal ───────────────────────────────── */
.shortcuts-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.shortcut-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 10px;
  border-radius: 6px;
  background: var(--bg-elevated);
}

.shortcut-action {
  font-size: 0.68rem;
  color: var(--text-secondary);
}

.shortcut-key {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-panel);
  border: 1px solid var(--border-mid);
  border-radius: 4px;
  padding: 2px 6px;
}

/* ============================================================
   MARKERS (timeline overlays)
   ============================================================ */
.marker-flag {
  position: absolute;
  top: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  pointer-events: none;
  z-index: 15;
}

.marker-line {
  width: 1px;
  background: rgba(251,191,36,0.7);
  height: 100%;
}

.marker-label {
  background: rgba(251,191,36,0.15);
  border: 1px solid rgba(251,191,36,0.4);
  border-radius: 3px;
  font-size: 0.58rem;
  font-family: var(--font-mono);
  color: #fbbf24;
  padding: 1px 5px;
  white-space: nowrap;
  margin-top: 2px;
}

/* ============================================================
   CONTEXT MENU
   ============================================================ */
.studio-context-menu {
  position: fixed;
  background: var(--bg-panel);
  border: 1px solid var(--border-mid);
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  z-index: 999;
  min-width: 160px;
  overflow: hidden;
  opacity: 0;
  transform: scale(0.92) translateY(-4px);
  transform-origin: top left;
  transition: all 0.12s ease;
  pointer-events: none;
}

.studio-context-menu.visible {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: all;
}

.ctx-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  font-size: 0.73rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.1s ease;
}

.ctx-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.ctx-item.danger:hover { background: rgba(239,68,68,0.1); color: var(--col-record); }

.ctx-sep {
  height: 1px;
  background: var(--border-hair);
  margin: 4px 0;
}

/* ============================================================
   TOAST NOTIFICATIONS
   ============================================================ */
#studio-toast-container {
  position: fixed;
  top: calc(var(--transport-h) + 10px);
  right: 14px;
  z-index: 900;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.studio-toast {
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--bg-panel);
  border: 1px solid var(--border-mid);
  box-shadow: var(--shadow-md);
  font-size: 0.74rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  transform: translateX(120%);
  transition: transform 0.24s cubic-bezier(0.34, 1.56, 0.64, 1);
  max-width: 280px;
  line-height: 1.4;
}

.studio-toast.show { transform: translateX(0); }
.studio-toast.toast-success { border-color: rgba(74,222,128,0.3); }
.studio-toast.toast-error   { border-color: rgba(239,68,68,0.3); }
.studio-toast.toast-info    { border-color: rgba(102,126,234,0.3); }

.toast-icon { font-size: 14px; flex-shrink: 0; }

/* ============================================================
   COUNT-IN OVERLAY
   ============================================================ */
#count-in-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 800;
  pointer-events: none;
  opacity: 0;
}

#count-in-number {
  font-size: 8rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--col-record);
  text-shadow: 0 0 60px rgba(239,68,68,0.5);
  opacity: 0;
  transform: scale(1.5);
  transition: all 0.15s ease;
}

#count-in-number.pop {
  opacity: 1;
  transform: scale(1);
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.hidden      { display: none !important; }
.flex-center { display: flex; align-items: center; justify-content: center; }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
}

input[type="range"]:focus { outline: none; }

/* Studio-specific scrollbars */
::-webkit-scrollbar { width: var(--scrollbar-w); height: var(--scrollbar-w); }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.18); }

/* Select styling */
select.studio-select {
  -webkit-appearance: none;
  appearance: none;
  background: var(--bg-elevated) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' fill='none'%3E%3Cpath d='M1 1l4 4 4-4' stroke='rgba(255,255,255,0.3)' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat right 8px center;
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 0.72rem;
  padding: 4px 24px 4px 8px;
  cursor: pointer;
  outline: none;
  transition: border-color 0.15s ease;
}

select.studio-select:hover, select.studio-select:focus {
  border-color: rgba(102,126,234,0.4);
}

/* Label style */
.studio-label {
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  display: block;
  margin-bottom: 6px;
}

/* Input text */
.studio-input {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 7px;
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 0.82rem;
  padding: 9px 12px;
  outline: none;
  transition: border-color 0.15s ease;
}

.studio-input:focus { border-color: rgba(102,126,234,0.45); }

/* Overdub indicator */
.overdub-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: rgba(240,147,251,0.1);
  border: 1px solid rgba(240,147,251,0.3);
  border-radius: 999px;
  font-size: 0.58rem;
  font-weight: 700;
  color: #f093fb;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Loop region indicator */
.loop-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  background: rgba(96,165,250,0.1);
  border: 1px solid rgba(96,165,250,0.3);
  border-radius: 999px;
  font-size: 0.58rem;
  font-weight: 700;
  color: var(--col-solo);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Playback speed indicator */
.speed-display {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: 5px;
  padding: 3px 8px;
}

/* ── Instrument selector dropdown (in add track / header) ───── */
.inst-select-wrap {
  display: flex;
  gap: 4px;
}

.inst-choice {
  flex: 1;
  padding: 6px 8px;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-size: 0.65rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: all 0.12s ease;
}

.inst-choice:hover { color: var(--text-secondary); border-color: var(--border-mid); }
.inst-choice.selected.alto  { background: rgba(102,126,234,0.12); border-color: rgba(102,126,234,0.4); color: #818cf8; }
.inst-choice.selected.tenor { background: rgba(240,147,251,0.1);  border-color: rgba(240,147,251,0.35); color: #f093fb; }
.inst-choice.selected.bass  { background: rgba(74,222,128,0.08);  border-color: rgba(74,222,128,0.3);  color: #4ade80; }
.inst-choice.selected.drums { background: rgba(251,113,133,0.08); border-color: rgba(251,113,133,0.32); color: #fda4af; }

.first-track-intro {
  color: var(--text-secondary);
  font-size: 0.82rem;
  line-height: 1.6;
  margin-bottom: 14px;
}

.first-track-select {
  margin-bottom: 14px;
}

.first-track-select .inst-choice {
  min-height: 48px;
  font-weight: 700;
}

.first-track-help {
  min-height: 38px;
  padding: 11px 12px;
  border-radius: 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-soft);
  color: var(--text-secondary);
  font-size: 0.78rem;
  line-height: 1.5;
}

.session-manager-modal {
  max-width: 980px;
  width: min(94vw, 980px);
}

.session-manager-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 18px;
}

.session-profile-summary {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px 18px;
  align-items: center;
  padding: 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.035);
}

.session-profile-identity {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.session-profile-avatar {
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid rgba(102,126,234,0.28);
  background: rgba(102,126,234,0.13);
  color: #c4b5fd;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.session-profile-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.session-profile-copy {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.session-profile-name-row {
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 9px;
}

.session-profile-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-primary);
  font-size: 0.94rem;
  font-weight: 800;
}

.session-profile-plan {
  flex: 0 0 auto;
  padding: 3px 7px;
  border-radius: 7px;
  border: 1px solid rgba(251,191,36,0.28);
  background: rgba(251,191,36,0.11);
  color: #fcd34d;
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.session-profile-email {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text-muted);
  font-size: 0.72rem;
}

.session-profile-stats {
  display: flex;
  align-items: stretch;
  gap: 10px;
}

.session-profile-stat {
  min-width: 118px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 9px 10px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.07);
  background: rgba(0,0,0,0.16);
}

.session-profile-stat-label {
  color: var(--text-muted);
  font-size: 0.58rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.session-profile-stat strong {
  color: var(--text-primary);
  font-size: 0.88rem;
  line-height: 1;
}

.session-profile-logout {
  align-self: stretch;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  background: rgba(255,255,255,0.04);
  color: var(--text-secondary);
  padding: 0 12px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.session-profile-logout:hover {
  background: rgba(255,255,255,0.08);
  color: var(--text-primary);
  border-color: var(--border-mid);
}

.session-recording-meter {
  grid-column: 1 / -1;
  height: 5px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255,255,255,0.07);
}

.session-recording-meter span {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #4ade80, #667eea);
  transition: width 0.2s ease, background 0.2s ease;
}

.session-profile-summary[data-quota-state="full"] .session-recording-meter span,
.session-profile-summary[data-quota-state="over"] .session-recording-meter span {
  background: linear-gradient(90deg, #f87171, #fbbf24);
}

.session-recording-note {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--text-muted);
  font-size: 0.72rem;
  line-height: 1.45;
}

.profile-recording-quota {
  padding: 10px 11px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.07);
  background: rgba(255,255,255,0.04);
  color: var(--text-secondary);
  font-size: 0.72rem;
  line-height: 1.45;
}

.profile-recording-quota[data-state="ok"] {
  border-color: rgba(74,222,128,0.22);
  background: rgba(74,222,128,0.07);
  color: #bbf7d0;
}

.profile-recording-quota[data-state="full"],
.profile-recording-quota[data-state="over"] {
  border-color: rgba(248,113,113,0.25);
  background: rgba(248,113,113,0.08);
  color: #fecaca;
}

.session-manager-column {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
}

.session-block-title {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.session-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 320px;
  max-height: 420px;
  overflow-y: auto;
  padding-right: 4px;
}

.session-empty {
  padding: 18px;
  border-radius: 12px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-soft);
  color: var(--text-muted);
  font-size: 0.8rem;
  line-height: 1.6;
}

.session-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px 14px;
  border-radius: 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-soft);
}

.session-row.active {
  border-color: rgba(102,126,234,0.35);
  background: rgba(102,126,234,0.09);
  box-shadow: 0 0 0 1px rgba(102,126,234,0.14) inset;
}

.session-row-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.session-row-title {
  color: var(--text-primary);
  font-size: 0.88rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.session-row-meta {
  color: var(--text-muted);
  font-size: 0.73rem;
}

.session-row-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.session-mini-btn {
  border: 1px solid var(--border-soft);
  background: rgba(255,255,255,0.04);
  color: var(--text-secondary);
  border-radius: 10px;
  padding: 6px 10px;
  font-size: 0.72rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.session-mini-btn:hover {
  background: rgba(255,255,255,0.08);
  color: var(--text-primary);
  border-color: var(--border-mid);
}

.session-mini-btn.load {
  background: rgba(102,126,234,0.14);
  color: #a5b4fc;
  border-color: rgba(102,126,234,0.28);
}

.session-mini-btn.delete {
  color: #fca5a5;
  border-color: rgba(248,113,113,0.2);
}

@media (max-width: 820px) {
  .session-profile-summary {
    grid-template-columns: 1fr;
  }

  .session-profile-stats {
    flex-wrap: wrap;
  }

  .session-profile-stat {
    flex: 1 1 120px;
  }

  .session-profile-logout {
    min-height: 38px;
  }

  .session-manager-body {
    grid-template-columns: 1fr;
  }
}

/* ── Track color picker swatches ────────────────────────────── */
.color-swatches {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.color-swatch {
  width: 18px; height: 18px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.12s ease;
  flex-shrink: 0;
}

.color-swatch:hover, .color-swatch.selected {
  border-color: white;
  transform: scale(1.15);
}

/* Back to Studio nav link */
.nav-back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color 0.15s ease;
}

.nav-back-link:hover { color: var(--text-secondary); }

/* ── Responsive — ensure desktop-only enforcement ───────────── */
@media (max-width: 767px) {
  #studio-app    { display: none !important; }
  #mobile-fallback { display: flex !important; }
}