/**
 * tracker.css - Polyend Tracker Hardware Aesthetics & Visual Editor Styling
 */

:root {
  --bg-chassis:    #151619;
  --bg-surface:    #1c1e22;
  --bg-surface-2:  #25282e;
  --bg-surface-3:  #2f333a;
  --bg-step-even:  #181a1d;
  --bg-step-odd:   #1c1e22;
  --bg-step-beat:  #23262d;
  --bg-step-bar:   #2a2e36;

  --border-dim:    #30343c;
  --border-mid:    #404652;
  --border-bright: #586070;

  --accent:        #FF7A00;
  --accent-glow:   rgba(255, 122, 0, 0.4);
  --accent-subtle: rgba(255, 122, 0, 0.15);
  --accent-hover:  #FF9933;

  --color-note:    #F2F4F8;
  --color-note-off:#FF4D5A;
  --color-empty:   #4E5462;
  --color-instr:   #34D399;
  --color-fx:      #60A5FA;
  --color-step-num:#8B93A4;
  --color-step-hi: #FFB366;

  --fg-main:       #E5E7EB;
  --fg-muted:      #9CA3AF;
  --fg-dim:        #6B7280;

  --font-mono:     "JetBrains Mono", "SF Mono", "Consolas", "Courier New", monospace;
  --cell-h:        24px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--bg-chassis);
  color: var(--fg-main);
  font-family: var(--font-mono);
  font-size: 12px;
  -webkit-font-smoothing: antialiased;
}

/* ── App Shell ─────────────────────────────────────────── */
.tracker-app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  max-height: 100dvh;
  width: 100vw;
  max-width: 100vw;
  overflow: hidden;
  box-sizing: border-box;
  background: radial-gradient(circle at 50% 10%, #20232a 0%, #151619 100%);
  padding: 8px 12px 10px;
  gap: 8px;
}

/* ── Top Bezel / Header ────────────────────────────────── */
.tracker-bezel-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(180deg, #282b32 0%, #1e2025 100%);
  border: 1px solid var(--border-mid);
  border-radius: 6px;
  padding: 6px 14px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.08);
  flex-shrink: 0;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
  gap: 8px;
}

.brand-section {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.brand-logo {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 2px;
  color: #FFFFFF;
  text-transform: uppercase;
}

.brand-logo span {
  color: var(--accent);
}

.brand-sub {
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--fg-dim);
  text-transform: uppercase;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Control Bar / Status Ribbon ───────────────────────── */
.tracker-control-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface);
  border: 1px solid var(--border-dim);
  border-radius: 4px;
  padding: 6px 12px;
  gap: 12px;
  flex-wrap: wrap;
  flex-shrink: 0;
}

.ctrl-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.ctrl-label {
  color: var(--fg-muted);
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.ctrl-select, .ctrl-input {
  background: var(--bg-surface-2);
  color: var(--accent);
  border: 1px solid var(--border-dim);
  border-radius: 3px;
  padding: 3px 6px;
  font-family: inherit;
  font-size: 11px;
  font-weight: 700;
  outline: none;
}

.ctrl-select:focus, .ctrl-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-subtle);
}

/* ── Hardware Buttons ──────────────────────────────────── */
.btn-hw {
  background: linear-gradient(180deg, #323640 0%, #22252c 100%);
  color: var(--fg-main);
  border: 1px solid var(--border-mid);
  border-bottom-color: #17191e;
  border-radius: 4px;
  padding: 5px 11px;
  font-family: inherit;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.1);
  transition: all 0.08s ease;
}

.btn-hw:hover {
  background: linear-gradient(180deg, #3c414d 0%, #2b2f38 100%);
  color: #FFFFFF;
  border-color: var(--border-bright);
}

.btn-hw:active {
  background: #1c1e23;
  transform: translateY(1px);
  box-shadow: inset 0 1px 3px rgba(0,0,0,0.6);
}

.btn-hw.accent {
  background: linear-gradient(180deg, #FF8C1A 0%, #D96200 100%);
  border-color: #FFA347;
  color: #111;
  text-shadow: 0 1px 0 rgba(255,255,255,0.2);
}

.btn-hw.accent:hover {
  background: linear-gradient(180deg, #FFA333 0%, #E66C00 100%);
}

.btn-hw.accent:active {
  background: #B34E00;
  color: #000;
}

.btn-hw.sm {
  padding: 3px 8px;
  font-size: 10px;
}

.btn-hw.active {
  background: var(--accent);
  color: #151619;
  border-color: #FFA033;
}

.btn-hw.play {
  background: linear-gradient(180deg, #10B981 0%, #059669 100%);
  border-color: #34D399;
  color: #052e16;
  text-shadow: 0 1px 0 rgba(255,255,255,0.25);
  font-weight: 900;
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.4);
}

.btn-hw.play:hover {
  background: linear-gradient(180deg, #34D399 0%, #059669 100%);
  color: #000;
}

.btn-hw.play.playing {
  background: linear-gradient(180deg, #F59E0B 0%, #D97706 100%);
  border-color: #FBBF24;
  color: #111;
  text-shadow: 0 1px 0 rgba(255,255,255,0.3);
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.6);
  animation: pulsePause 1.5s infinite ease-in-out;
}

@keyframes pulsePause {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.85; }
}

.btn-hw.play.paused {
  background: linear-gradient(180deg, #3B82F6 0%, #1D4ED8 100%);
  border-color: #60A5FA;
  color: #FFF;
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.5);
}

/* ── Main Tracker Grid Screen ──────────────────────────── */
.grid-viewport-wrapper {
  flex: 1;
  position: relative;
  background: #111215;
  border: 1px solid var(--border-dim);
  border-radius: 4px;
  overflow: auto;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.8);
  min-height: 200px;
}

.grid-viewport-wrapper::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

.grid-viewport-wrapper::-webkit-scrollbar-track {
  background: #15161a;
}

.grid-viewport-wrapper::-webkit-scrollbar-thumb {
  background: #2f343e;
  border: 2px solid #15161a;
  border-radius: 4px;
}

.grid-viewport-wrapper::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
}

.tracker-grid {
  display: table;
  border-collapse: separate;
  border-spacing: 0;
  width: 100%;
  min-width: 960px;
}

/* ── Grid Headers ──────────────────────────────────────── */
.grid-header-row {
  display: table-row;
  position: sticky;
  top: 0;
  z-index: 20;
}

.th-step {
  display: table-cell;
  position: sticky;
  left: 0;
  top: 0;
  z-index: 25;
  background: #1E2127;
  color: var(--fg-muted);
  width: 44px;
  min-width: 44px;
  max-width: 44px;
  text-align: center;
  font-size: 10px;
  font-weight: 700;
  padding: 8px 4px;
  border-right: 2px solid var(--border-bright);
  border-bottom: 2px solid var(--border-bright);
}

.th-track {
  display: table-cell;
  background: #1E2127;
  padding: 6px 4px 4px;
  text-align: center;
  border-right: 1px solid var(--border-bright);
  border-bottom: 2px solid var(--border-bright);
  min-width: 108px;
}

.track-head-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 4px 4px;
  border-bottom: 1px solid var(--border-dim);
}

.th-name {
  color: var(--accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1px;
}

.th-btns {
  display: flex;
  gap: 3px;
}

.btn-mini {
  background: #2a2e36;
  border: 1px solid #3c424e;
  border-radius: 2px;
  color: var(--fg-muted);
  font-size: 8px;
  font-weight: 700;
  padding: 1px 4px;
  cursor: pointer;
}

.btn-mini:hover {
  color: #FFF;
  border-color: var(--border-bright);
}

.btn-mini.active-mute {
  background: #C53030;
  color: #FFF;
  border-color: #E53E3E;
}

.btn-mini.active-solo {
  background: #D69E2E;
  color: #111;
  border-color: #ECC94B;
}

.subcol-headers {
  display: flex;
  justify-content: space-between;
  padding-top: 4px;
  font-size: 9px;
  color: var(--fg-dim);
  font-weight: 700;
  letter-spacing: 0.5px;
}

.subcol-note { width: 36px; text-align: left; padding-left: 2px; }
.subcol-instr { width: 22px; text-align: center; }
.subcol-fx1 { width: 24px; text-align: right; }
.subcol-fx2 { width: 24px; text-align: right; }

/* ── Grid Step Rows ────────────────────────────────────── */
.step-row {
  display: table-row;
  height: var(--cell-h);
}

.step-row.step-even { background: var(--bg-step-even); }
.step-row.step-odd  { background: var(--bg-step-odd); }
.step-row.step-beat {
  background: var(--bg-step-beat);
  border-top: 1px solid rgba(255, 122, 0, 0.12);
}
.step-row.step-bar  {
  background: var(--bg-step-bar);
  border-top: 1px solid var(--accent);
}

.step-row.playhead {
  background: rgba(16, 185, 129, 0.28) !important;
  box-shadow: inset 0 0 10px rgba(52, 211, 153, 0.35);
  border-left: 3px solid #10B981;
}

.step-row.playhead .td-step-num {
  background: #059669 !important;
  color: #FFFFFF !important;
  font-weight: 900;
  text-shadow: 0 0 4px rgba(255,255,255,0.8);
}

.step-row.playhead .cell-field {
  filter: brightness(1.25);
}

/* Step Number Column */
.td-step-num {
  display: table-cell;
  position: sticky;
  left: 0;
  z-index: 10;
  background: inherit;
  color: var(--color-step-num);
  text-align: center;
  font-size: 11px;
  font-weight: 700;
  border-right: 2px solid var(--border-bright);
  border-bottom: 1px solid #1a1c22;
  line-height: var(--cell-h);
}

.step-bar .td-step-num {
  color: var(--color-step-hi);
  font-weight: 900;
  background: #252830;
}

.step-beat .td-step-num {
  color: #D1D5DB;
}

/* Track Cell Container */
.td-track {
  display: table-cell;
  border-right: 1px solid var(--border-dim);
  border-bottom: 1px solid #181a1f;
  padding: 0 4px;
  vertical-align: middle;
}

.track-step-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  font-size: 11px;
  letter-spacing: 0.5px;
}

/* Cell Fields */
.cell-field {
  padding: 1px 3px;
  border-radius: 2px;
  cursor: pointer;
  white-space: pre;
  display: inline-block;
  line-height: 18px;
  transition: background 0.05s ease;
}

.cell-field:hover {
  background: rgba(255, 255, 255, 0.08);
}

.cell-field.selected {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  background: var(--accent-subtle) !important;
  box-shadow: 0 0 8px var(--accent-glow);
  z-index: 5;
  position: relative;
}

.cf-note {
  width: 36px;
  font-weight: 700;
  color: var(--color-note);
  text-align: left;
}

.cf-note.empty {
  color: var(--color-empty);
  font-weight: 400;
}

.cf-note.off {
  color: var(--color-note-off);
  font-weight: 800;
}

.cf-instr {
  width: 22px;
  color: var(--color-instr);
  text-align: center;
  font-weight: 600;
}

.cf-instr.empty {
  color: var(--color-empty);
  font-weight: 400;
}

.cf-fx {
  width: 24px;
  color: var(--color-fx);
  font-size: 9px;
  text-align: right;
  opacity: 0.75;
}

.cf-fx.empty {
  color: var(--color-empty);
  opacity: 0.4;
}

/* ── Bottom Dock (Touch / Mouse / Helper) ──────────────── */
.tracker-bottom-dock {
  background: var(--bg-surface);
  border: 1px solid var(--border-dim);
  border-radius: 4px;
  padding: 8px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-shrink: 0;
  box-shadow: 0 -2px 10px rgba(0,0,0,0.3);
}

.dock-left, .dock-center, .dock-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cursor-readout {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-dim);
  border-radius: 3px;
  padding: 4px 10px;
  font-size: 11px;
}

.readout-label {
  color: var(--fg-dim);
  font-weight: 600;
}

.readout-val {
  color: var(--accent);
  font-weight: 800;
}

/* Mini On-Screen Piano */
.mini-piano {
  display: flex;
  position: relative;
  height: 38px;
  background: #111;
  padding: 2px;
  border-radius: 3px;
  border: 1px solid var(--border-mid);
}

.piano-white-key {
  width: 20px;
  height: 100%;
  background: #E5E7EB;
  border: 1px solid #222;
  border-radius: 0 0 2px 2px;
  cursor: pointer;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 2px;
  font-size: 8px;
  font-weight: 800;
  color: #111;
}

.piano-white-key:hover {
  background: #FFF;
}

.piano-white-key:active {
  background: var(--accent);
  color: #000;
}

.piano-black-key {
  position: absolute;
  width: 14px;
  height: 60%;
  background: #222;
  border: 1px solid #111;
  border-radius: 0 0 2px 2px;
  z-index: 2;
  cursor: pointer;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  font-size: 7px;
  color: #AAA;
}

.piano-black-key:hover {
  background: #333;
  color: #FFF;
}

.piano-black-key:active {
  background: var(--accent);
  color: #000;
}

/* Note Off Special Button */
.btn-note-off {
  color: var(--color-note-off) !important;
  border-color: rgba(255, 77, 90, 0.5) !important;
  background: rgba(255, 77, 90, 0.12) !important;
  font-weight: 800 !important;
  letter-spacing: 0.5px;
}

.btn-note-off:hover {
  background: rgba(255, 77, 90, 0.28) !important;
  border-color: var(--color-note-off) !important;
  box-shadow: 0 0 8px rgba(255, 77, 90, 0.35) !important;
}

.btn-note-off:active {
  background: var(--color-note-off) !important;
  color: #000 !important;
}

/* ── Modal Overlays ────────────────────────────────────── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.78);
  backdrop-filter: blur(3px);
  z-index: 100;
  align-items: center;
  justify-content: center;
}

.modal-overlay.open {
  display: flex;
}

.modal-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-bright);
  border-radius: 6px;
  width: 620px;
  max-width: 95vw;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 16px 36px rgba(0,0,0,0.8), 0 0 0 1px rgba(255,255,255,0.06);
  animation: modalIn 0.15s ease-out;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.97); }
  to { opacity: 1; transform: scale(1); }
}

.modal-head {
  padding: 12px 18px;
  border-bottom: 1px solid var(--border-dim);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  color: var(--accent);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 1px;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--fg-muted);
  font-size: 18px;
  cursor: pointer;
  padding: 2px 6px;
}

.modal-close:hover {
  color: var(--accent);
}

.modal-body {
  padding: 16px 20px;
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.drop-zone {
  border: 2px dashed var(--border-mid);
  border-radius: 6px;
  padding: 24px 16px;
  text-align: center;
  background: var(--bg-surface-2);
  cursor: pointer;
  transition: all 0.15s ease;
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--accent);
  background: var(--accent-subtle);
}

.drop-icon {
  font-size: 24px;
  margin-bottom: 6px;
  color: var(--accent);
}

.drop-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--fg-main);
  margin-bottom: 4px;
}

.drop-hint {
  font-size: 10px;
  color: var(--fg-muted);
}

.file-list {
  background: #111215;
  border: 1px solid var(--border-dim);
  border-radius: 4px;
  max-height: 120px;
  overflow-y: auto;
  padding: 6px;
  font-size: 11px;
}

.file-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 3px 6px;
  border-radius: 2px;
}

.file-row:hover {
  background: #1E2127;
}

.file-row-name {
  color: var(--color-note);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-row-del {
  color: var(--fg-dim);
  cursor: pointer;
  font-size: 12px;
  padding: 0 4px;
}

.file-row-del:hover {
  color: var(--color-note-off);
}

.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  background: var(--bg-surface-2);
  padding: 12px;
  border-radius: 4px;
  border: 1px solid var(--border-dim);
}

.opt-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.opt-field label {
  font-size: 10px;
  font-weight: 700;
  color: var(--fg-muted);
  text-transform: uppercase;
}

/* ── MIDI Split Manager Box ────────────────────────────── */
.midi-split-box {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-bright);
  border-radius: 6px;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.split-box-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.split-box-title {
  color: var(--accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.badge-length {
  background: #2a2e38;
  color: var(--fg-muted);
  border: 1px solid var(--border-mid);
  border-radius: 3px;
  padding: 2px 6px;
  font-size: 9px;
  font-weight: 700;
}

.badge-length.alert {
  background: rgba(255, 122, 0, 0.2);
  color: #FFA333;
  border-color: #FFA333;
}

.midi-summary-text {
  font-size: 11px;
  color: var(--fg-main);
  line-height: 1.4;
}

.split-options-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.split-preview-container {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
  max-height: 90px;
  overflow-y: auto;
}

.split-chip {
  background: #111215;
  border: 1px solid var(--border-mid);
  border-radius: 3px;
  padding: 3px 8px;
  font-size: 10px;
  color: var(--fg-main);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.split-chip span {
  color: var(--color-instr);
  font-weight: 800;
}

.conv-log-box {
  background: #111215;
  border: 1px solid var(--border-dim);
  border-radius: 4px;
  padding: 8px 10px;
  font-size: 10px;
  line-height: 1.5;
  color: var(--fg-muted);
  max-height: 110px;
  overflow-y: auto;
  white-space: pre-wrap;
}

.conv-log-ok { color: var(--color-instr); }
.conv-log-warn { color: var(--accent); }
.conv-log-err { color: var(--color-note-off); }

.modal-foot {
  padding: 12px 18px;
  border-top: 1px solid var(--border-dim);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ── Keyboard Shortcuts Modal Styling ──────────────────── */
.shortcut-table {
  width: 100%;
  border-collapse: collapse;
}

.shortcut-table td {
  padding: 6px 8px;
  border-bottom: 1px solid var(--border-dim);
}

.key-badge {
  background: var(--bg-surface-2);
  border: 1px solid var(--border-bright);
  border-radius: 3px;
  padding: 2px 6px;
  font-size: 10px;
  font-weight: 800;
  color: var(--accent);
  box-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

/* Hidden file inputs */
.hidden-file-input {
  display: none;
}

/* ── In-Pattern Splitting Toolbar & Grid Markers ──────── */
.pattern-split-toolbar {
  background: linear-gradient(180deg, #2a2118 0%, #1c1711 100%);
  border: 1px solid #FF7A00;
  border-radius: 4px;
  padding: 5px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(255, 122, 0, 0.2);
  flex-wrap: wrap;
}

.split-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.split-warning-badge {
  background: #FF7A00;
  color: #111;
  font-size: 10px;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 3px;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.split-hints {
  font-size: 10px;
  color: var(--fg-muted);
}

.split-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

/* Split markers on grid */
.step-row.has-split-marker {
  border-top: 2px dashed #FF7A00 !important;
  background: rgba(255, 122, 0, 0.12) !important;
}

.step-row.has-split-marker .td-step-num {
  background: #C25E00 !important;
  color: #FFF !important;
  font-weight: 900;
  position: relative;
}

.step-row.has-split-marker .td-step-num::before {
  content: "✂";
  position: absolute;
  left: 2px;
  top: 0;
  font-size: 8px;
}

/* ── Track Navigation Ribbon & View Modes ─────────────── */
.tracker-nav-ribbon {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface-2);
  border: 1px solid var(--border-dim);
  border-radius: 4px;
  padding: 4px 10px;
  gap: 12px;
  flex-shrink: 0;
}

.nav-ribbon-left, .nav-ribbon-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.track-pills-group {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding: 2px 0;
}

.track-pills-group::-webkit-scrollbar {
  display: none;
}

.track-pill {
  background: var(--bg-surface);
  color: var(--fg-muted);
  border: 1px solid var(--border-mid);
  border-radius: 3px;
  padding: 3px 8px;
  font-family: inherit;
  font-size: 11px;
  font-weight: 800;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.08s ease;
}

.track-pill:hover {
  color: #FFFFFF;
  border-color: var(--border-bright);
}

.track-pill.active {
  background: var(--accent);
  color: #111;
  border-color: #FFA033;
  box-shadow: 0 0 8px var(--accent-glow);
}

.view-mode-group {
  display: flex;
  gap: 4px;
}

/* ── Mobile Menu & Slide-over Drawer ──────────────────── */
.mobile-menu-toggle {
  display: none;
}

.mobile-drawer-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  z-index: 150;
  justify-content: flex-end;
}

.mobile-drawer-overlay.open {
  display: flex;
}

.mobile-drawer {
  width: 290px;
  max-width: 85vw;
  height: 100%;
  background: var(--bg-surface);
  border-left: 1px solid var(--border-bright);
  display: flex;
  flex-direction: column;
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.9);
  animation: slideDrawer 0.18s ease-out;
}

@keyframes slideDrawer {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

.mobile-drawer-head {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-dim);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-drawer-body {
  padding: 16px 14px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.drawer-section-title {
  color: var(--fg-dim);
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-top: 10px;
  margin-bottom: 2px;
}

.drawer-action-btn {
  width: 100%;
  justify-content: flex-start;
  padding: 10px 14px;
  font-size: 12px;
}

/* ── Focused View Modes (1 Track & 2 Track) ───────────── */
.tracker-grid.view-1-track .th-track:not(.focus-active),
.tracker-grid.view-1-track .td-track:not(.focus-active) {
  display: none !important;
}

.tracker-grid.view-1-track .th-track.focus-active,
.tracker-grid.view-1-track .td-track.focus-active {
  min-width: 260px;
  width: 100%;
}

.tracker-grid.view-2-track .th-track:not(.focus-active-2),
.tracker-grid.view-2-track .td-track:not(.focus-active-2) {
  display: none !important;
}

.tracker-grid.view-2-track .th-track.focus-active-2,
.tracker-grid.view-2-track .td-track.focus-active-2 {
  min-width: 160px;
  width: 50%;
}

/* ── Responsive Mobile & Tablet Media Queries ─────────── */
@media (max-width: 1024px) {
  .desktop-only {
    display: none !important;
  }

  .mobile-menu-toggle {
    display: inline-flex !important;
  }

  .brand-sub {
    display: none !important;
  }

  .tracker-app {
    padding: 4px;
    gap: 4px;
  }

  .tracker-bezel-top {
    padding: 5px 8px;
    gap: 4px;
  }

  .brand-logo {
    font-size: 13px;
    letter-spacing: 1px;
  }

  .header-actions {
    gap: 4px;
  }

  .btn-hw {
    padding: 5px 8px;
    font-size: 11px;
  }

  /* Control bar: sleek single-line horizontal scroll strip */
  .tracker-control-bar {
    padding: 4px 6px;
    gap: 8px;
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .tracker-control-bar::-webkit-scrollbar {
    display: none;
  }

  .ctrl-group {
    flex-shrink: 0;
    white-space: nowrap;
    gap: 4px;
  }

  .ctrl-label {
    font-size: 9px;
  }

  .ctrl-select, .ctrl-input {
    font-size: 10px;
    padding: 2px 4px;
  }

  /* Track Navigation Ribbon: single compact line */
  .tracker-nav-ribbon {
    padding: 3px 6px;
    gap: 6px;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    box-sizing: border-box;
  }

  .nav-ribbon-left {
    min-width: 0;
    flex: 1;
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: 4px;
  }

  .track-pills-group {
    overflow-x: auto;
    flex-wrap: nowrap;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 3px;
    display: flex;
  }

  .track-pills-group::-webkit-scrollbar {
    display: none;
  }

  .track-pill {
    padding: 3px 7px;
    font-size: 10px;
    flex-shrink: 0;
  }

  .nav-ribbon-right {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 4px;
  }

  .view-mode-group {
    gap: 2px;
  }

  .view-mode-btn {
    padding: 3px 6px;
    font-size: 9px;
  }

  /* Grid adjustments on small screens */
  .tracker-grid.view-1-track {
    min-width: 100% !important;
    width: 100% !important;
  }

  .tracker-grid.view-2-track {
    min-width: 100% !important;
    width: 100% !important;
  }

  .cell-field {
    padding: 2px 4px;
    font-size: 11px;
  }

  .cf-note { width: 36px; }
  .cf-instr { width: 22px; }

  /* Bottom Dock Mobile Layout */
  .tracker-bottom-dock {
    flex-direction: column;
    padding: 4px 6px;
    gap: 4px;
    width: 100%;
    box-sizing: border-box;
  }

  .dock-left, .dock-center, .dock-right {
    width: 100%;
    box-sizing: border-box;
  }

  .cursor-readout {
    width: 100%;
    justify-content: space-around;
    padding: 2px 6px;
    font-size: 10px;
    box-sizing: border-box;
  }

  .dock-center {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 3px;
  }

  .dock-center .btn-hw {
    padding: 5px 0;
    justify-content: center;
    font-size: 9px;
    text-align: center;
  }

  .mini-piano {
    width: 100%;
    height: 38px;
    justify-content: space-between;
  }

  .piano-white-key {
    flex: 1;
    font-size: 9px;
    padding-bottom: 2px;
  }

  .piano-black-key {
    width: 14px;
    height: 60%;
    font-size: 7px;
  }
}

@media (pointer: coarse) {
  /* Enlarge touch targets on touchscreens */
  .cell-field {
    min-height: 22px;
  }
  .track-pill {
    padding: 5px 10px;
    font-size: 11px;
  }
}