/* ─── Design Tokens ─────────────────────────────────────────── */
:root {
  --bg-base:       #09090f;
  --bg-surface:    #0f0f1a;
  --bg-glass:      rgba(255,255,255,0.04);
  --bg-glass-hov:  rgba(255,255,255,0.08);
  --border-subtle: rgba(255,255,255,0.07);
  --border-glow:   rgba(167,139,250,0.35);

  --purple-400: #c084fc;
  --purple-500: #a78bfa;
  --purple-600: #7c3aed;
  --sky-400:    #38bdf8;
  --sky-500:    #0ea5e9;
  --pink-400:   #f472b6;
  --amber-400:  #fbbf24;
  --emerald-400:#34d399;

  --grad-main: linear-gradient(135deg, var(--purple-500), var(--sky-400));
  --grad-glow: linear-gradient(135deg, var(--purple-600), var(--sky-500));

  --text-primary:   #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted:     #475569;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  --transition-fast: 120ms cubic-bezier(.4,0,.2,1);
  --transition-med:  250ms cubic-bezier(.4,0,.2,1);
  --shadow-glow: 0 0 20px rgba(167,139,250,0.25), 0 0 60px rgba(167,139,250,0.08);
}

/* ─── Reset & Base (scoped to #seq-wrapper to avoid conflicts) ── */
#seq-wrapper *, #seq-wrapper *::before, #seq-wrapper *::after { box-sizing: border-box; margin: 0; padding: 0; }
#seq-wrapper {
  font-size: 14px;
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  overflow-x: hidden;
  /* Animated background mesh */
  background-image:
    radial-gradient(ellipse 80% 50% at 20% 10%, rgba(124,58,237,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(14,165,233,0.10) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 50% 50%, rgba(244,114,182,0.05) 0%, transparent 70%);
}

/* ─── App Wrapper ────────────────────────────────────────────── */
.app-wrapper {
  max-width: 100%;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

/* ─── Sequencer Section: Reduce top gap by 200px ─── */
/* .block gives 140px top padding on both Discography & Sequencer = 280px gap total.
   padding-top: 0 removes 140px, margin-top: -60px removes another 60px → 200px less. */
#Sequencer {
  padding-top: 0 !important;
  margin-top: -60px !important;
}

/* ─── Sequencer Section: Break Out of Container ─── */
/* The sequencer lives inside .container (max-width:1200px) and .about-us (padding-right:75px).
   We break #seq-wrapper out to full viewport width while keeping .app-wrapper
   internal padding exactly as-is. */
#Sequencer .container {

  /* Allow the about-us div to expand beyond default container width */
  max-width: 100% !important;
  width: 100% !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
  padding-left: 30px !important;
  padding-right: 30px !important;
}
#Sequencer .about-us {
  padding-right: 0 !important;
  width: 100% !important;
}
/* Align the Sequencer h2 title with other sections (Plugin, Discography, etc.)
   Other sections: content starts at (viewport - 1200px)/2 + 15px from left.
   Our container has 30px left-padding, so the h2 needs the remaining offset. */
#Sequencer .about-us > h2 {
  padding-left: max(0px, calc((100vw - 1200px) / 2 - 15px));
  box-sizing: border-box;
}
/* Shift the gradient bar (::before, position:absolute, left:0) to match the text */
#Sequencer .about-us > h2::before {
  left: max(0px, calc((100vw - 1200px) / 2 - 15px));
}

#Sequencer #seq-wrapper.app-wrapper {
  /* Stretch edge-to-edge within the section, keep internal padding */
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}


/* ─── Glass Panel ────────────────────────────────────────────── */
.glass-panel {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}
.glass-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, transparent 60%);
  pointer-events: none;
}

/* ─── Header ─────────────────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0 0.75rem;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.logo-icon { width: 36px; height: 36px; flex-shrink: 0; }
.logo-text {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}
.logo-accent {
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.header-badges { display: flex; gap: 0.5rem; }
.badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 500;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  background: var(--bg-glass);
  letter-spacing: 0.05em;
}
.badge-alt { border-color: var(--border-glow); color: var(--purple-400); }

/* ─── Control Panel ──────────────────────────────────────────── */
.control-panel {
  display: grid;
  grid-template-columns: 200px 1.1fr 1fr 220px;
  gap: 1.25rem;
  align-items: start;
  padding-bottom: calc(1.5rem - 20px);
}

.transport-tempo-sub {
  margin-top: 0.6rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.transport-logo-container {
  margin-top: 1.5rem;
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: var(--radius-md);
  padding: 0.5rem;
  opacity: 0.6;
  transition: opacity var(--transition-med);
  transform: translateY(-25px) scale(0.8);
}
.transport-logo-container:hover {
  opacity: 1;
}
.transport-logo-img {
  width: 120px;
  max-width: 100%;
  height: auto;
  filter: brightness(1.2);
}

.control-group { display: flex; flex-direction: column; gap: 0.75rem; }

.group-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #ffffff;
  font-family: 'JetBrains Mono', monospace;
}

/* Shift "START / VOL / EXPORT" label 20px to the right */
#transport-group .group-label {
  padding-left: 20px !important;
}

/* Shift "SEQUENCER GRID" label 20px to the right */
.sequencer-header .group-label {
  padding-left: 20px !important;
}



/* ─── Transport Controls ─────────────────────────────────────── */
.transport-controls {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}


.btn-transport {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);  /* square with soft corners */
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--grad-main);
  color: #fff;
  box-shadow: 0 4px 20px rgba(167,139,250,0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  flex-shrink: 0;
}
.btn-transport:hover { transform: scale(1.08); box-shadow: 0 6px 28px rgba(167,139,250,0.55); }
.btn-transport:active { transform: scale(0.95); }
.btn-transport svg { width: 16px; height: 16px; }
.btn-transport.playing {
  background: linear-gradient(135deg, var(--pink-400), var(--amber-400));
  box-shadow: 0 4px 20px rgba(244,114,182,0.4);
}

/* ─── Export Buttons Stack (WAV + MIDI) ──────────────────────── */
.export-btns {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.export-btns .btn-action {
  width: 100%;          /* stretch to match the widest sibling */
  justify-content: flex-start;
  padding: 0.38rem 0.75rem;
  font-size: 0.75rem;
}

.btn-action {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-glass);
  color: var(--text-secondary);
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.btn-action svg { width: 14px; height: 14px; flex-shrink: 0; }
.btn-action:hover {
  background: var(--bg-glass-hov);
  border-color: var(--border-glow);
  color: var(--purple-400);
  transform: translateY(-1px);
}
.btn-action:active { transform: translateY(0); }

/* ─── Transport FX Row ───────────────────────────────────────── */
.transport-fx-row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 0.4rem;
  padding-top: 0.45rem;
  border-top: 1px solid var(--border-subtle);
}
.transport-fx-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #ffffff;
}
.fx-toggle-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
  margin-bottom: 0.4rem;
}
.btn-fx-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.4rem 0.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-glass);
  color: var(--text-secondary);
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
  white-space: nowrap;
}
.btn-fx-toggle svg { width: 12px; height: 12px; flex-shrink: 0; }
.btn-fx-toggle:hover {
  background: var(--bg-glass-hov);
  border-color: var(--border-glow);
  color: var(--purple-400);
}
.btn-fx-toggle.active {
  border-color: var(--purple-500);
  background: rgba(167,139,250,0.18);
  color: var(--purple-400);
  box-shadow: 0 0 10px rgba(167,139,250,0.25) inset;
}

/* ─── Effects Rack Cards ─────────────────────────────────────── */
.fx-rack {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}
.fx-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.45rem 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  width: 100%;
  min-width: 0;
}
.fx-card-header {
  display: flex;
  align-items: center;
}
.fx-card .btn-fx-toggle {
  width: 100%;
}
.fx-card-body {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-top: 0.25rem;
}
.fx-card-body .slider-label {
  min-width: 32px;
  font-size: 0.62rem;
}
.fx-card-body .slider-row {
  gap: 0.35rem;
}
.fx-card-body .value-display-sm {
  min-width: 40px;
}
.fx-card-body .radio-group-sm {
  gap: 0.25rem;
}
.fx-card-body .radio-group-sm .radio-pill {
  padding: 0.25rem 0.4rem;
  font-size: 0.65rem;
}

/* ─── 8-Band Equalizer Section ───────────────────────────────── */
.eq-section {
  margin-top: 0.6rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.eq-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ─── Filter Delay Section ───────────────────────────────────── */
.filter-delay-section {
  margin-top: 0.6rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.fx-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.btn-delay-toggle, .btn-reverb-toggle, .btn-chorus-toggle, .btn-phase-toggle {
  font-size: 0.58rem;
  padding: 0.18rem 0.45rem;
  border-radius: var(--radius-sm);
}
.btn-delay-toggle.active, .btn-reverb-toggle.active, .btn-chorus-toggle.active, .btn-phase-toggle.active {
  border-color: var(--purple-500);
  background: rgba(167,139,250,0.18);
  color: var(--purple-400);
}
.btn-eq-reset {
  font-size: 0.58rem;
  padding: 0.18rem 0.45rem;
  border-radius: var(--radius-sm);
}
.eq-sliders-row {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 0.3rem;
  align-items: center;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.35rem;
}
.eq-band {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
}
.eq-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.52rem;
  color: var(--purple-400);
  font-weight: 600;
  min-height: 11px;
  text-align: center;
}
.eq-slider {
  writing-mode: vertical-lr;
  direction: rtl;
  -webkit-appearance: slider-vertical;
  appearance: slider-vertical;
  width: 14px;
  height: 110px;
  background: transparent;
  cursor: pointer;
}
.eq-freq {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.52rem;
  color: var(--text-muted);
  font-weight: 500;
  text-align: center;
}

/* ─── Sliders ────────────────────────────────────────────────── */
.slider-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.slider-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--text-muted);
  min-width: 36px;
}
.range-labels {
  display: flex;
  justify-content: space-between;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  color: var(--text-muted);
  margin-top: -0.25rem;
}

/* ─── Filter Artist Image ────────────────────────────────────── */
.fx-artist-container {
  margin-top: calc(0.6rem + 40px);
  display: flex;
  justify-content: center;
  align-items: center;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: #1c1c24;
  position: relative;
}
.fx-artist-img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  object-position: top center;
  border-radius: var(--radius-md);
  opacity: 0.85;
  mix-blend-mode: multiply;
  filter: contrast(1.08) brightness(0.95);
  transition: opacity var(--transition-med), filter var(--transition-med), mix-blend-mode var(--transition-med);
}
.fx-artist-container:hover .fx-artist-img {
  opacity: 1;
  mix-blend-mode: normal;
  filter: contrast(1.1) brightness(1);
}
@keyframes artist-blink {
  0%   { opacity: 1; filter: contrast(1.2) brightness(1.4); box-shadow: 0 0 20px rgba(167,139,250,0.7), 0 0 40px rgba(56,189,248,0.3); }
  100% { opacity: 0.85; filter: contrast(1.08) brightness(0.95); box-shadow: none; }
}
.fx-artist-container.artist-blink .fx-artist-img {
  animation: artist-blink 0.25s ease-out;
  mix-blend-mode: normal;
}
.fx-artist-container.artist-blink {
  border-color: var(--purple-500);
}

.styled-slider {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 6px;
  border-radius: 999px;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  outline: none;
  min-width: 80px;
}
.styled-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--purple-400);
  border: 2px solid #ffffff;
  box-shadow: 0 0 10px rgba(167,139,250,0.5), 0 2px 6px rgba(0,0,0,0.5);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  cursor: grab;
}
.styled-slider::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.2); }
.styled-slider:hover::-webkit-slider-thumb { box-shadow: 0 0 12px rgba(167,139,250,0.8), 0 2px 8px rgba(0,0,0,0.5); }

.value-display {
  display: flex;
  align-items: baseline;
  gap: 0.2rem;
  min-width: 64px;
  justify-content: flex-end;
}
.value-display span:first-child {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.1rem;
  font-weight: 700;
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.unit {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  color: var(--text-muted);
  -webkit-text-fill-color: var(--text-muted);
}
.value-display-sm { min-width: 52px; }
.value-display-sm span:first-child { font-size: 0.9rem; }

/* ─── Radio Pills ────────────────────────────────────────────── */
.radio-group {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}
#osc-group .radio-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.4rem;
}
.radio-group-sm { flex-wrap: nowrap; }

.radio-pill {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 0.4rem 0.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-glass);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
  white-space: nowrap;
}
.radio-pill input[type=radio] { display: none; }
.radio-pill svg { width: 32px; height: 16px; flex-shrink: 0; }
.radio-group-sm .radio-pill { padding: 0.35rem 0.6rem; font-size: 0.72rem; }
.radio-group-sm .radio-pill svg { display: none; }

.radio-pill:hover {
  border-color: var(--border-glow);
  color: var(--purple-400);
  background: var(--bg-glass-hov);
}
.radio-pill.active {
  border-color: var(--purple-500);
  background: rgba(167,139,250,0.12);
  color: var(--purple-400);
  box-shadow: 0 0 12px rgba(167,139,250,0.2) inset;
}

/* ─── Filter ─────────────────────────────────────────────────── */
.filter-inner { display: flex; flex-direction: column; gap: 0.7rem; }
.filter-sliders { display: flex; flex-direction: column; gap: 0.5rem; }

/* ─── Sequencer Grid ─────────────────────────────────────────── */
.sequencer-section { padding: 1.5rem; }

/* ── All text in the sequencer section → orange ── */
.sequencer-section,
.sequencer-section .group-label,
.sequencer-section .seq-step-indicator,
.sequencer-section .seq-step-indicator span,
.sequencer-section .step-number,
.sequencer-section .oct-display,
.sequencer-section .step-note-select,
.sequencer-section .btn-shift {
  color: var(--amber-400);
}
/* keep the purple gradient accent on current-step-display */
.sequencer-section #current-step-display {
  color: var(--amber-400);
  background: none;
  -webkit-text-fill-color: var(--amber-400);
}
/* note selects: orange text on dark bg */
.sequencer-section .step-note-select {
  color: var(--amber-400);
}
/* oct buttons */
.sequencer-section .oct-btn {
  color: var(--amber-400);
  border-color: rgba(251,191,36,0.25);
}
.sequencer-section .oct-btn:hover {
  border-color: var(--amber-400);
  color: #fff;
}

.sequencer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
}
.seq-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.seq-step-indicator {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
}
#current-step-display {
  color: var(--purple-400);
  font-weight: 700;
}

.seq-shift-btns {
  display: flex;
  gap: 0.35rem;
}

.btn-shift {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.32rem 0.65rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-glass);
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.btn-shift svg { width: 12px; height: 12px; flex-shrink: 0; }
.btn-shift:hover {
  border-color: var(--border-glow);
  color: var(--purple-400);
  background: var(--bg-glass-hov);
  transform: translateY(-1px);
}
.btn-shift:active { transform: translateY(0) scale(0.96); }

.sequencer-grid {
  display: grid;
  grid-template-columns: repeat(16, 1fr);
  gap: 0.5rem;
}

/* ─── Step Cell ──────────────────────────────────────────────── */
.step-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.6rem 0.4rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  min-width: 0;
  user-select: none;
}
.step-cell:hover {
  border-color: rgba(167,139,250,0.25);
  background: var(--bg-glass-hov);
}

/* Group beats visually (groups of 4) */
.step-cell:nth-child(4n+1) { border-left: 2px solid rgba(167,139,250,0.2); }

/* Active step trigger */
.step-trigger {
  width: 100%;
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: rgba(255,255,255,0.04);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}
.step-trigger::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--grad-main);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.step-cell.active .step-trigger {
  border-color: var(--purple-500);
  background: rgba(167,139,250,0.15);
  box-shadow: 0 0 12px rgba(167,139,250,0.3);
}
.step-cell.active .step-trigger::after { opacity: 0.4; }

/* Playhead highlight */
.step-cell.playing-now {
  border-color: var(--sky-400) !important;
  background: rgba(56,189,248,0.08) !important;
}
.step-cell.playing-now .step-trigger::after { opacity: 1; background: linear-gradient(135deg, var(--sky-400), var(--purple-500)); }
.step-cell.playing-now .step-trigger { border-color: var(--sky-400); box-shadow: 0 0 20px rgba(56,189,248,0.5); }

/* Step number badge */
.step-number {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.55rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Note selector */
.step-note-select {
  width: 100%;
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  padding: 0.15rem 0.1rem;
  text-align: center;
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition-fast);
  -webkit-appearance: none;
}
.step-note-select:focus, .step-note-select:hover { border-color: var(--border-glow); }
#seq-wrapper option { background: #1a1a2e; }

/* Octave control */
.step-octave {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}
.oct-btn {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
  background: rgba(0,0,0,0.3);
  color: var(--text-muted);
  font-size: 0.6rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: all var(--transition-fast);
  padding: 0;
}
.oct-btn:hover { border-color: var(--border-glow); color: var(--purple-400); }
.oct-display {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.58rem;
  color: var(--text-secondary);
  min-width: 18px;
  text-align: center;
}

/* ─── Visualizer ─────────────────────────────────────────────── */
.visualizer-section { padding: 1rem 1.5rem; height: 80px; }
#visualizer {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: var(--radius-sm);
}

/* ─── Footer ─────────────────────────────────────────────────── */
.app-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--text-muted);
  padding: 0.25rem 0.25rem 0;
}
.status-bar {
  background: var(--grad-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 600;
}

/* ─── Toast ──────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: rgba(15,15,26,0.95);
  border: 1px solid var(--border-glow);
  border-radius: var(--radius-lg);
  padding: 0.7rem 1.4rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--purple-400);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-glow);
  transition: transform 350ms cubic-bezier(.34,1.56,.64,1), opacity 350ms;
  opacity: 0;
  z-index: 9999;
  pointer-events: none;
  white-space: nowrap;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

/* ─── Transport Volume Knob ──────────────────────────────────── */
.vol-knob-ctrl {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  user-select: none;
}
.vol-knob-wrapper {
  position: relative;
  width: 60px;
  height: 60px;
  cursor: ns-resize;
  border-radius: 50%;
  flex-shrink: 0;
}
.vol-knob-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  overflow: visible;
}
.vol-knob-body {
  position: absolute;
  inset: 10px;         /* 60px wrapper − 10px each side = 40px body */
  border-radius: 50%;
  background:
    radial-gradient(circle at 36% 30%, rgba(56,189,248,0.22), transparent 55%),
    radial-gradient(circle at center, #1e2a38, #0d151e);
  border: 1.5px solid rgba(56,189,248,0.30);
  box-shadow:
    0 4px 16px rgba(0,0,0,0.6),
    0 0 14px rgba(14,165,233,0.20),
    inset 0 1px 0 rgba(255,255,255,0.08);
  transition: box-shadow var(--transition-fast);
}
.vol-knob-wrapper:hover .vol-knob-body {
  box-shadow:
    0 4px 16px rgba(0,0,0,0.6),
    0 0 20px rgba(14,165,233,0.40),
    inset 0 1px 0 rgba(255,255,255,0.08);
}
.vol-knob-wrapper.dragging .vol-knob-body {
  box-shadow:
    0 4px 16px rgba(0,0,0,0.6),
    0 0 28px rgba(56,189,248,0.55),
    inset 0 1px 0 rgba(255,255,255,0.08);
  cursor: grabbing;
}
/* Needle pointer */
.vol-knob-ptr {
  position: absolute;
  top: 5px;
  left: calc(50% - 1.5px);
  width: 3px;
  height: 10px;
  background: linear-gradient(to bottom, #fff 60%, rgba(56,189,248,0.5));
  border-radius: 2px;
  transform-origin: 50% 15px; /* pivot at knob centre: 10px height + 5px gap */
  transform: rotate(-135deg);
  transition: transform 0ms; /* instant while dragging */
}
/* Value readout */
.vol-knob-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.58rem;
  font-weight: 700;
  color: #38bdf8;
  min-width: 36px;
  text-align: center;
  text-shadow: 0 0 8px rgba(56,189,248,0.5);
}
.vol-knob-lbl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.5rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: center;
}

/* ─── VU Meter ───────────────────────────────────────────────── */
.vu-meter-wrap {
  margin-top: 0.6rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  width: 420px;
  max-width: 100%;
}
.vu-meter-labels {
  display: flex;
  justify-content: space-between;
  padding: 0 2px;
}
.vu-lbl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.5rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: -0.02em;
}
.vu-lbl-red { color: #f87171; }
#vu-meter {
  width: 420px;
  max-width: 100%;
  height: 36px;
  display: block;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  background: rgba(0, 0, 0, 0.4);
}
.vu-meter-ch-labels {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: absolute; /* overlay is handled via canvas rows */
}
.vu-ch-lbl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.5rem;
  color: var(--text-muted);
  font-weight: 700;
  letter-spacing: 0.05em;
}

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 1100px) {
  .control-panel { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 800px) {
  .control-panel { grid-template-columns: 1fr; }
  .sequencer-grid { grid-template-columns: repeat(8, 1fr); }
}
@media (max-width: 500px) {
  .sequencer-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ─── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(167,139,250,0.3); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: rgba(167,139,250,0.5); }

/* ─── Animations ─────────────────────────────────────────────── */
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 12px rgba(167,139,250,0.3); }
  50%       { box-shadow: 0 0 24px rgba(167,139,250,0.6), 0 0 40px rgba(56,189,248,0.2); }
}
.step-cell.playing-now { animation: pulse-glow 0.3s ease; }

@keyframes step-flash {
  0%   { opacity: 1; }
  100% { opacity: 0; }
}
.step-flash-overlay {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle, rgba(167,139,250,0.6), transparent);
  animation: step-flash 0.3s ease-out forwards;
  pointer-events: none;
}

/* ══════════════════════════════════════════════════════════════
   TR-909 DRUM COMPUTER
   ══════════════════════════════════════════════════════════════ */

/* ─── Drum Section ───────────────────────────────────────────── */
.drum-section { padding: 1.25rem 1.5rem; }

.drum-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.6rem;
}
.drum-title-area {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* TR-909 label badge */
.drum-909-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 0.22rem 0.6rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #f472b6, #fb923c);
  color: #fff;
  box-shadow: 0 2px 10px rgba(244,114,182,0.35);
}

/* Sync indicator */
.drum-sync-badge {
  display: flex;
  align-items: center;
  gap: 0.28rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--emerald-400);
  font-weight: 600;
  letter-spacing: 0.08em;
}
.drum-sync-badge svg { width: 8px; height: 8px; }
@keyframes sync-pulse { 0%,100%{opacity:1;} 50%{opacity:0.25;} }
.drum-sync-badge svg { animation: sync-pulse 1.2s ease-in-out infinite; }

.drum-header-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.drum-hint {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  color: var(--text-muted);
  font-style: italic;
}
.btn-sm { padding: 0.35rem 0.72rem; font-size: 0.72rem; }
.btn-sm svg { width: 12px; height: 12px; }

/* ─── Drum Grid Container ────────────────────────────────────── */
.drum-grid {
  display: flex;
  flex-direction: column;
  gap: 0.28rem;
}

/* ─── Drum Row ───────────────────────────────────────────────── */
.drum-row {
  display: grid;
  grid-template-columns: 80px 1fr 90px;
  align-items: center;
  gap: 0.5rem;
  border-radius: var(--radius-sm);
  padding: 0.22rem 0.3rem 0.22rem 0;
  transition: opacity var(--transition-fast);
}
.drum-row:not(.drum-header-row) {
  border-left: 3px solid var(--ch-color, var(--purple-500));
  padding-left: 0.45rem;
}
.drum-row:not(.drum-header-row):hover { background: rgba(255,255,255,0.02); }
.drum-row-muted { opacity: 0.3; }
.drum-header-row { padding-left: 0; }

/* ─── Channel Info ───────────────────────────────────────────── */
.drum-channel-info {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  min-width: 0;
}
.drum-channel-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ch-color, var(--text-secondary));
  min-width: 34px;
  text-shadow: 0 0 10px var(--ch-color, transparent);
}
.drum-mute-btn {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
  background: rgba(0,0,0,0.3);
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.58rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  padding: 0;
  flex-shrink: 0;
  line-height: 1;
}
.drum-mute-btn:hover { border-color: var(--pink-400); color: var(--pink-400); }
.drum-mute-btn.muted {
  background: rgba(244,114,182,0.18);
  border-color: var(--pink-400);
  color: var(--pink-400);
}

/* ─── Pad Grid ───────────────────────────────────────────────── */
.drum-pads {
  display: grid;
  grid-template-columns: repeat(16, 1fr);
  gap: 3px;
}

/* Beat header markers */
.drum-beat-markers { align-items: center; }
.drum-beat-mark {
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.55rem;
  color: var(--text-muted);
  user-select: none;
}
.drum-beat-mark-main { color: var(--text-secondary); font-weight: 700; font-size: 0.62rem; }

/* ─── Individual Drum Pad ────────────────────────────────────── */
.drum-pad {
  aspect-ratio: 1;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.06);
  background: rgba(255,255,255,0.03);
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast), filter var(--transition-fast);
  position: relative;
  overflow: hidden;
}
.drum-pad-beat-start { margin-left: 2px; }
.drum-pad:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(255,255,255,0.18);
}

/* Active (on) state — uses per-row CSS var */
.drum-pad.active {
  background: var(--ch-color, var(--purple-500));
  border-color: var(--ch-color, var(--purple-500));
  box-shadow: 0 0 8px rgba(255,255,255,0.15);
}
.drum-pad.active:hover { filter: brightness(1.15); }

/* Accent state — brighter + dot indicator */
.drum-pad.accented {
  filter: brightness(1.25);
  box-shadow: 0 0 14px var(--ch-color, var(--purple-500)), 0 0 3px #fff inset;
}
.drum-pad.accented::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(255,255,255,0.9);
  pointer-events: none;
}

/* Playhead scanning highlight */
.drum-pad.drum-playing {
  outline: 2px solid rgba(56,189,248,0.55);
  outline-offset: -2px;
  transition: outline var(--transition-fast);
}
.drum-pad.drum-playing.active {
  outline-color: #fff;
  filter: brightness(1.4);
}

/* ─── Volume Control ─────────────────────────────────────────── */
.drum-vol-ctrl {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 0.2rem;
}
.drum-vol-slider { min-width: 0; width: 100%; }
.drum-vol-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.58rem;
  color: var(--text-muted);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .drum-row { grid-template-columns: 72px 1fr 70px; }
}
@media (max-width: 700px) {
  .drum-row { grid-template-columns: 64px 1fr 56px; }
  .drum-channel-label { font-size: 0.55rem; }
  .drum-pads { gap: 2px; }
}

/* ══════════════════════════════════════════════════════════
   EFFECTS KNOBS
   ══════════════════════════════════════════════════════════ */

.effects-knob-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.fx-section {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.fx-section-lbl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #ffffff;
  padding-bottom: 0.1rem;
  border-bottom: 1px solid var(--border-subtle);
}
.knobs-row {
  display: flex;
  gap: 0.55rem;
  align-items: flex-start;
  flex-wrap: wrap;
}
.knob-hint {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.58rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  font-style: italic;
}

/* ─ Knob Component ──────────────────────────────────────────── */
.knob-ctrl {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  user-select: none;
}

/* Outer wrapper positions SVG behind the body */
.knob-wrapper {
  position: relative;
  width: 52px;
  height: 52px;
  cursor: ns-resize;
  border-radius: 50%;
}
.knob-wrapper:hover .knob-body {
  box-shadow: 0 4px 14px rgba(0,0,0,0.55),
              0 0 14px rgba(167,139,250,0.22),
              inset 0 1px 0 rgba(255,255,255,0.08);
}
.knob-wrapper.knob-active .knob-body {
  box-shadow: 0 4px 14px rgba(0,0,0,0.55),
              0 0 20px rgba(167,139,250,0.40),
              inset 0 1px 0 rgba(255,255,255,0.08);
}

/* SVG arc fills the full 52×52 wrapper */
.knob-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* Physical knob body: 40px centred in 52px wrapper */
.knob-body {
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background:
    radial-gradient(circle at 38% 32%, rgba(255,255,255,0.14), transparent 55%),
    radial-gradient(circle at center, #23233a, #0d0d1a);
  border: 1px solid rgba(255,255,255,0.12);
  box-shadow:
    0 4px 14px rgba(0,0,0,0.55),
    inset 0 1px 0 rgba(255,255,255,0.08);
  transition: box-shadow var(--transition-fast);
}

/* Needle pointer: pivots around knob centre */
.knob-ptr {
  position: absolute;
  top: 4px;         /* gap from body top */
  left: calc(50% - 1.5px);
  width: 3px;
  height: 10px;
  background: linear-gradient(to bottom, #fff 60%, rgba(255,255,255,0.3));
  border-radius: 2px;
  /* transform-origin: 50% (body height/2 - top - height + body height/2) */
  /* body = 40px, top = 4px, height = 10px → centre = 20px from body top */
  /* distance from bottom of ptr (14px) to body centre (20px) = 6px */
  transform-origin: 50% 16px; /* 10px + 6px */
  transform: rotate(-135deg);
}

/* Value and label under the knob */
.knob-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  font-weight: 700;
  color: var(--purple-400);
  min-width: 42px;
  text-align: center;
}
.knob-lbl {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.55rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
}

/* ─ Solo Button ─────────────────────────────────────────────── */
.drum-solo-btn {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
  background: rgba(0,0,0,0.3);
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.58rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  padding: 0;
  flex-shrink: 0;
  line-height: 1;
}
.drum-solo-btn:hover { border-color: var(--amber-400); color: var(--amber-400); }
.drum-solo-btn.soloed {
  background: rgba(251,191,36,0.2);
  border-color: var(--amber-400);
  color: var(--amber-400);
  box-shadow: 0 0 8px rgba(251,191,36,0.35);
}

/* Dimmed rows when solo is active on another channel */
.drum-row-unsoloed {
  opacity: 0.22;
  transition: opacity var(--transition-med);
}

/* Responsive: wrap control panel below 1200px */
@media (max-width: 1200px) {
  .control-panel { grid-template-columns: auto 1fr 1fr; }
  #effects-group { grid-column: 1 / -1; }
  .effects-knob-group { flex-direction: row; flex-wrap: wrap; gap: 1rem; }
}
@media (max-width: 800px) {
  .control-panel { grid-template-columns: 1fr 1fr; }
}