/* Fonts (--font-main) live in config.css, loaded before this file. */

:root {
  /* ---------- Colors ---------- */
  --metal-light: #d4d2c2;
  --metal: #b3b09c;
  --metal-mid: #9c9884;
  --metal-dark: #79765f;
  --metal-darker: #57553f;
  --panel: #b8b5a0;
  --panel-recess: #a29e88;
  --screen-bg: #0b1f10;
  --screen-bg-2: #081707;
  --phosphor: #6dffa0;
  --phosphor-dim: #2c6b45;
  --phosphor-dim2: #1c4a2f;
  --bakelite: #26241f;
  --bakelite-light: #3d3a32;
  --bakelite-active: #4a4038;
  --text-dark: #211f18;
  --text-mid: #4a4736;
  --text-label: #2a2820;
  --accent-red: #9c3a30;
  --accent-amber: #c98a35;
  --chrome: #e8e6da;
  --chrome-shadow: #6b6952;

  /* Eurorack module panel palette (black anodized, distinct from the lighter
     bakelite/cream theme used for oscillator/sampler/LFO voice cards) */
  --module-panel: #1c1b19;
  --module-panel-2: #141312;
  --module-screw: #3a3833;
  --module-text: #e8e6da;
  --module-led-green: #4dff8a;
  --module-led-red: #ff4d4d;
  --module-jack-ring: #8a8878;
  --module-accent-orange: #d97a3d;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background:
    repeating-linear-gradient(115deg, rgba(0,0,0,0.03) 0px, rgba(0,0,0,0.03) 2px, transparent 2px, transparent 4px),
    linear-gradient(180deg, #a9a692, #8f8c78);
  color: var(--text-dark);
  font-family: var(--font-main);
}

/* ---------- Start overlay ---------- */

#start-overlay[hidden] { display: none; }

#start-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    repeating-linear-gradient(115deg, rgba(0,0,0,0.04) 0px, rgba(0,0,0,0.04) 2px, transparent 2px, transparent 4px),
    linear-gradient(180deg, #a9a692, #85826e);
  z-index: 100;
}

.start-card {
  text-align: center;
  max-width: 520px;
  padding: 40px 44px;
  background: var(--panel);
  border: 2px solid var(--metal-darker);
  border-radius: 6px;
  box-shadow:
    inset 2px 2px 0 var(--metal-light),
    inset -2px -2px 0 var(--metal-dark),
    0 10px 24px rgba(0,0,0,0.35);
  position: relative;
}

.start-card::before,
.start-card::after {
  content: '';
  position: absolute;
  top: 10px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--chrome), var(--chrome-shadow));
  box-shadow: 0 1px 2px rgba(0,0,0,0.5);
}
.start-card::before { left: 10px; }
.start-card::after { right: 10px; }

.start-card h1 {
  font-size: 2rem;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
  color: var(--text-dark);
  text-transform: uppercase;
  text-shadow: 1px 1px 0 var(--metal-light);
}

.start-card .cyrillic-tag {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--text-mid);
  margin-bottom: 18px;
  text-transform: uppercase;
}

.start-card p {
  color: var(--text-mid);
  line-height: 1.5;
}

#start-btn {
  margin-top: 16px;
  padding: 14px 28px;
  font-size: 0.95rem;
  font-family: var(--font-main);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 4px;
  border: 2px solid var(--bakelite);
  background: linear-gradient(180deg, var(--bakelite-light), var(--bakelite));
  color: var(--phosphor);
  font-weight: 700;
  cursor: pointer;
  box-shadow: inset 1px 1px 0 rgba(255,255,255,0.15), 0 3px 0 var(--metal-darker);
}

#start-btn:active {
  transform: translateY(2px);
  box-shadow: inset 1px 1px 0 rgba(255,255,255,0.1), 0 1px 0 var(--metal-darker);
}

#start-btn:hover { background: linear-gradient(180deg, #47443a, var(--bakelite)); }

.small-note {
  color: var(--accent-red);
  font-size: 0.85rem;
  margin-top: 14px;
  min-height: 1em;
}

/* ---------- App shell ---------- */

#app {
  max-width: 1440px;
  margin: 0 auto;
  padding: 20px 24px 40px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 16px;
  padding: 14px 18px;
  background: var(--panel);
  border: 2px solid var(--metal-darker);
  border-radius: 6px;
  box-shadow: inset 1px 1px 0 var(--metal-light), inset -1px -1px 0 var(--metal-dark);
}

.topbar h1 {
  font-size: 1.3rem;
  margin: 0;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dark);
}

.topbar h1 .cyrillic-tag {
  display: block;
  font-size: 0.6rem;
  letter-spacing: 0.18em;
  color: var(--text-mid);
  font-weight: normal;
  margin-top: 2px;
}

.master-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

.master-scope { width: 220px; height: 56px; }

.master-volume-mount .ctrl-slider-top { justify-content: center; gap: 6px; }
.master-volume-mount .ctrl-value { min-width: 2.2em; }

.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  padding: 12px 16px;
  background: var(--panel);
  border: 2px solid var(--metal-darker);
  border-radius: 6px;
  box-shadow: inset 1px 1px 0 var(--metal-light), inset -1px -1px 0 var(--metal-dark);
}

/* ---------- Transport bar ---------- */

.transport-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
  padding: 12px 16px;
  background: var(--panel);
  border: 2px solid var(--metal-darker);
  border-radius: 6px;
  box-shadow: inset 1px 1px 0 var(--metal-light), inset -1px -1px 0 var(--metal-dark);
}

.project-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  padding: 10px 16px;
  background: var(--panel);
  border: 2px solid var(--metal-darker);
  border-radius: 6px;
  box-shadow: inset 1px 1px 0 var(--metal-light), inset -1px -1px 0 var(--metal-dark);
}

.project-bar-sep {
  width: 2px;
  align-self: stretch;
  background: var(--metal-darker);
  margin: 0 4px;
}

.project-bar .btn-secondary, .project-bar .btn-primary {
  padding: 7px 12px;
  font-size: 0.72rem;
}

.transport-btn {
  border: 2px solid var(--bakelite);
  border-radius: 4px;
  padding: 9px 18px;
  font-weight: 700;
  font-family: var(--font-main);
  cursor: pointer;
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  background: linear-gradient(180deg, var(--bakelite-light), var(--bakelite));
  box-shadow: inset 1px 1px 0 rgba(255,255,255,0.12), 0 2px 0 var(--metal-darker);
}

.transport-play { color: var(--phosphor); }
.transport-stop { color: var(--accent-red); }

.transport-play.active {
  background: linear-gradient(180deg, var(--phosphor), var(--phosphor-dim));
  color: var(--screen-bg);
  border-color: var(--phosphor-dim2);
  box-shadow: inset 1px 1px 0 rgba(255,255,255,0.2), 0 0 8px rgba(109,255,160,0.6);
}

.transport-btn:active { transform: translateY(2px); box-shadow: none; }

#bpm-input {
  width: 64px;
  background: var(--bakelite);
  color: var(--phosphor);
  border: 2px solid var(--metal-darker);
  border-radius: 3px;
  padding: 5px 6px;
  font-family: var(--font-main);
  font-size: 0.85rem;
}

.transport-hint {
  flex: 1;
  min-width: 200px;
}

/* ---------- Patch (channel) tabs ---------- */

.patch-tab-bar {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.patch-tab-btn {
  border: 2px solid var(--metal-darker);
  border-radius: 6px 6px 0 0;
  padding: 10px 18px;
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-mid);
  background: var(--panel-recess);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: inset 0 -3px 0 rgba(0,0,0,0.15);
}

.patch-tab-btn.active {
  background: var(--panel);
  color: var(--text-dark);
  box-shadow: inset 1px 1px 0 var(--metal-light), inset 0 -3px 0 var(--phosphor-dim);
}

.patch-tab-add {
  background: linear-gradient(180deg, var(--bakelite-light), var(--bakelite));
  color: var(--accent-amber);
  border-color: var(--bakelite);
}

.patch-tab-mixer {
  background: linear-gradient(180deg, #3a3f4a, #232730);
  color: var(--accent-3, #8ab4ff);
  border-color: #1c1f26;
}

.patch-tab-mixer.active {
  background: var(--panel);
  color: var(--text-dark);
  box-shadow: inset 1px 1px 0 var(--metal-light), inset 0 -3px 0 #8ab4ff;
}

.patch-tab-remove {
  color: var(--accent-red);
  font-size: 0.8rem;
  padding: 1px 3px;
  border-radius: 3px;
}

.patch-tab-remove:hover {
  background: var(--accent-red);
  color: var(--bakelite);
}

.patch-panel { display: none; }
.patch-panel.active { display: block; }

.btn-primary, .btn-secondary {
  border: 2px solid var(--bakelite);
  border-radius: 4px;
  padding: 9px 16px;
  font-weight: 700;
  font-family: var(--font-main);
  cursor: pointer;
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: linear-gradient(180deg, var(--bakelite-light), var(--bakelite));
  box-shadow: inset 1px 1px 0 rgba(255,255,255,0.12), 0 2px 0 var(--metal-darker);
}

.btn-primary { color: var(--phosphor); }
.btn-secondary { color: var(--accent-amber); }

.btn-primary:active, .btn-secondary:active {
  transform: translateY(2px);
  box-shadow: inset 1px 1px 0 rgba(255,255,255,0.08), 0 0 0 var(--metal-darker);
}

.octave-control {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-mid);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-small {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid var(--chrome-shadow);
  background: radial-gradient(circle at 35% 30%, var(--chrome), var(--metal-mid));
  color: var(--text-dark);
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 700;
  box-shadow: 0 2px 0 var(--metal-darker);
}

.btn-small:active { transform: translateY(1px); box-shadow: none; }

#oct-display {
  min-width: 1.2em;
  text-align: center;
  font-weight: 700;
  color: var(--text-dark);
}

.voices-container {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.voice-group {
  background: var(--panel-recess);
  border: 2px solid var(--metal-darker);
  border-radius: 6px;
  padding: 14px;
  box-shadow: inset 1px 1px 0 var(--metal-light), inset -1px -1px 0 var(--metal-dark);
}

.voice-group-header { margin-bottom: 12px; }

.voice-group-header h3 {
  margin: 0;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-dark);
}

.voice-group-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 16px;
}

/* ---------- Voice card (panel) ---------- */

.voice-card {
  position: relative;
  background: var(--panel);
  border: 2px solid var(--metal-darker);
  border-radius: 6px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: inset 1px 1px 0 var(--metal-light), inset -1px -1px 0 var(--metal-dark), 0 4px 10px rgba(0,0,0,0.2);
}

.voice-card::before,
.voice-card::after {
  content: '';
  position: absolute;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--chrome), var(--chrome-shadow));
  box-shadow: 0 1px 1px rgba(0,0,0,0.5);
}
.voice-card::before { left: 8px; }
.voice-card::after { right: 8px; }

.lfo-card {
  background: linear-gradient(180deg, #beb59c, var(--panel) 45%);
}

.sampler-card {
  background: linear-gradient(180deg, #a8c2b8, var(--panel) 45%);
}

.sampler-waveform {
  cursor: crosshair;
}

.slice-count-input {
  width: 56px;
  background: var(--bakelite);
  color: var(--phosphor);
  border: 2px solid var(--metal-darker);
  border-radius: 3px;
  padding: 4px 6px;
  font-family: var(--font-main);
  font-size: 0.8rem;
}

.sampler-slice-editor {
  border-top: 2px solid var(--metal-darker);
  padding-top: 8px;
}

.sampler-lock-hint {
  color: var(--accent-amber);
  margin-left: auto;
  align-self: center;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 4px;
}

.card-header h2 {
  font-size: 0.92rem;
  margin: 0;
  color: var(--text-dark);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.remove-btn {
  background: var(--bakelite);
  border: 1px solid var(--metal-darker);
  color: var(--accent-red);
  cursor: pointer;
  font-size: 0.85rem;
  line-height: 1;
  padding: 5px 8px;
  border-radius: 3px;
  box-shadow: inset 1px 1px 0 rgba(255,255,255,0.1);
}

.remove-btn:hover { background: var(--accent-red); color: var(--bakelite); }

.dup-btn { color: var(--phosphor); margin-right: 4px; }
.dup-btn:hover { background: var(--phosphor); color: var(--bakelite); }

/* ---------- Tabs ---------- */

.tabs-wrap { display: flex; flex-direction: column; gap: 10px; }

.tab-bar {
  display: flex;
  gap: 4px;
  border-bottom: 2px solid var(--metal-darker);
  padding-bottom: 6px;
}

.tab-btn {
  flex: 1;
  border: 2px solid var(--bakelite);
  border-radius: 4px 4px 0 0;
  padding: 7px 0;
  font-family: var(--font-main);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-mid);
  background: var(--panel-recess);
  cursor: pointer;
  box-shadow: inset 0 -2px 0 rgba(0,0,0,0.15);
}

.tab-btn.active {
  background: linear-gradient(180deg, var(--bakelite-light), var(--bakelite));
  color: var(--phosphor);
  box-shadow: inset 1px 1px 0 rgba(255,255,255,0.1);
}

.tab-contents { position: relative; }

.note-source-wrap { margin: 20px 0; }

.note-source-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}

.note-source-tab {
  flex: 1;
  border: 2px solid var(--metal-darker);
  border-radius: 6px 6px 0 0;
  padding: 9px 0;
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--text-mid);
  background: var(--panel-recess);
  cursor: pointer;
  box-shadow: inset 0 -3px 0 rgba(0,0,0,0.15);
}

.note-source-tab.active {
  background: linear-gradient(180deg, var(--bakelite-light), var(--bakelite));
  color: var(--accent-amber);
  box-shadow: inset 1px 1px 0 rgba(255,255,255,0.1);
}

.arp-section .sync-row select { min-width: 160px; }

.tab-panel { display: none; }
.tab-panel.active { display: flex; flex-direction: column; gap: 10px; }

.tab-content-inner { display: flex; flex-direction: column; gap: 10px; }

/* ---------- Waveform buttons ---------- */

.wave-buttons {
  display: flex;
  gap: 6px;
}

.wave-btn {
  flex: 1;
  background: linear-gradient(180deg, var(--bakelite-light), var(--bakelite));
  border: 2px solid var(--metal-darker);
  border-radius: 4px;
  padding: 6px 0;
  color: var(--metal-mid);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: inset 1px 1px 0 rgba(255,255,255,0.08), 0 2px 0 var(--metal-darker);
}

.wave-btn:active { transform: translateY(1px); box-shadow: none; }

.wave-btn.active {
  color: var(--screen-bg);
  background: linear-gradient(180deg, var(--phosphor), var(--phosphor-dim));
  border-color: var(--phosphor-dim2);
}

/* ---------- Oscilloscope screens ---------- */

.scope {
  width: 100%;
  height: 90px;
  background:
    linear-gradient(rgba(109,255,160,0.05) 1px, transparent 1px) 0 0 / 100% 12.5%,
    linear-gradient(90deg, rgba(109,255,160,0.05) 1px, transparent 1px) 0 0 / 12.5% 100%,
    radial-gradient(ellipse at center, var(--screen-bg) 0%, var(--screen-bg-2) 100%);
  border: 3px solid var(--bakelite);
  border-radius: 4px;
  display: block;
  box-shadow: inset 0 0 14px rgba(0,0,0,0.8), inset 0 0 0 2px var(--metal-darker);
}

.eq-scope { height: 120px; }

/* ---------- Control sliders ---------- */

.ctrl-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 14px;
}

/* Oscillator's main ADSR/level/pitch grid is exactly 9 controls - lay it
   out as a 3x3 square instead of the generic 2-column (or, on narrow
   screens, single-column) grid used elsewhere. */
.osc-ctrl-grid { grid-template-columns: repeat(3, 1fr); }

.ctrl-slider {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.ctrl-slider-top {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text-mid);
}

.ctrl-name { color: var(--text-mid); }
.ctrl-value { color: var(--text-dark); font-weight: 700; font-variant-numeric: tabular-nums; }

.knob-dial {
  position: relative;
  width: 44px;
  height: 44px;
  margin: 2px auto 0;
  cursor: ns-resize;
  outline: none;
  touch-action: none;
}

.knob-ticks-svg { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.knob-ticks-svg line { stroke: var(--metal-darker); stroke-width: 1.5; }

.knob-body {
  position: absolute;
  left: 4px; top: 4px; right: 4px; bottom: 4px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--chrome), var(--metal-mid) 60%, var(--metal-darker) 100%);
  box-shadow: 0 2px 0 var(--metal-darker), inset 0 1px 1px rgba(255,255,255,0.3);
}

.knob-pointer-rotor { position: absolute; inset: 0; }
.knob-pointer-line {
  position: absolute;
  left: 50%; top: 10%;
  width: 2px; height: 32%;
  background: var(--text-dark);
  border-radius: 1px;
  transform: translateX(-50%);
}

.knob-dial:focus-visible .knob-body { box-shadow: 0 0 0 2px var(--phosphor), 0 2px 0 var(--metal-darker); }

.sync-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: 8px;
  border-top: 2px solid var(--metal-darker);
}

.sync-row select {
  background: var(--bakelite);
  color: var(--phosphor);
  border: 2px solid var(--metal-darker);
  border-radius: 3px;
  padding: 4px 6px;
  font-family: var(--font-main);
  font-size: 0.78rem;
}

.preset-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.preset-controls select {
  background: var(--bakelite);
  color: var(--phosphor);
  border: 2px solid var(--metal-darker);
  border-radius: 3px;
  padding: 4px 6px;
  font-family: var(--font-main);
  font-size: 0.78rem;
  max-width: 190px;
}

.preset-icon-btn {
  border: 2px solid var(--chrome-shadow);
  background: radial-gradient(circle at 35% 30%, var(--chrome), var(--metal-mid));
  color: var(--text-dark);
  border-radius: 4px;
  padding: 4px 8px;
  cursor: pointer;
  font-size: 0.85rem;
  line-height: 1;
}

.preset-icon-btn:active { transform: translateY(1px); }

.hint-small {
  color: var(--text-mid);
  font-size: 0.7rem;
  line-height: 1.35;
}

/* ---------- Patch bay: jacks & cables ---------- */

#patch-cable-layer {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 500;
  overflow: visible;
}

.cable-permanent {
  filter: drop-shadow(0 2px 1px rgba(0,0,0,0.45));
}

.jack-standalone-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
}

.aux-out-row {
  padding: 2px 0 4px;
  border-bottom: 2px solid var(--metal-darker);
}

.jack {
  display: inline-block;
  width: 15px;
  height: 15px;
  min-width: 15px;
  border-radius: 50%;
  cursor: crosshair;
  position: relative;
  z-index: 501;
  box-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

.jack-in {
  background: radial-gradient(circle at 35% 30%, #4a4740, #100f0c);
  border: 2px solid var(--metal-darker);
}

.jack-out {
  background: radial-gradient(circle at 35% 30%, #f0b862, var(--accent-amber));
  border: 2px solid #7a4f18;
  cursor: grab;
  width: 18px;
  height: 18px;
  min-width: 18px;
}

.jack-out:active { cursor: grabbing; }

.jack.connected {
  box-shadow: 0 0 0 3px rgba(109,255,160,0.35), 0 1px 2px rgba(0,0,0,0.5);
}

.jack-in.connected {
  background: radial-gradient(circle at 35% 30%, var(--phosphor), var(--phosphor-dim2));
}

.jack-audio-in, .jack-audio-out {
  cursor: default;
  width: 13px;
  height: 13px;
  min-width: 13px;
  background: radial-gradient(circle at 35% 30%, #cfe9f0, #3fb8d6 70%, #1c6f82);
  border: 2px solid #1c6f82;
}

.cable-audio {
  filter: drop-shadow(0 2px 1px rgba(0,0,0,0.45));
}

.fx-main-out {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  flex: 0 0 auto;
  align-self: center;
  padding-left: 8px;
}

.fx-main-out-label {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text-mid);
}

/* ---------- Channel effects rack ---------- */

.fx-rack-section { margin: 16px 0; }

.fx-rack-row {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-top: 12px;
}

.fx-palette {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 0 0 auto;
  padding-right: 12px;
  border-right: 2px solid var(--metal-darker);
}

.fx-palette-icon {
  width: 56px;
  height: 40px;
  border-radius: 4px;
  border: 2px solid var(--chrome-shadow);
  background: radial-gradient(circle at 35% 30%, var(--chrome), var(--metal-mid));
  color: var(--text-dark);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  cursor: grab;
  touch-action: none;
}

.fx-palette-icon:active { transform: translateY(1px); cursor: grabbing; }

.fx-drag-ghost {
  position: fixed;
  z-index: 900;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 40px;
  border-radius: 4px;
  border: 2px solid var(--phosphor-dim2);
  background: radial-gradient(circle at 35% 30%, var(--phosphor), var(--phosphor-dim));
  color: var(--screen-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.62rem;
  font-weight: 700;
  pointer-events: none;
  opacity: 0.9;
  transition: background 0.1s, border-color 0.1s;
}

/* Shown while hovering somewhere that isn't a valid rack slot - dropping
   here removes the effect from the chain (or, from the palette, is just a
   no-op cancel). */
.fx-drag-ghost.remove-zone {
  background: radial-gradient(circle at 35% 30%, #e08a7a, var(--accent-red));
  border-color: #5c1c14;
  opacity: 0.75;
}

/* Live insertion marker shown while dragging - a glowing bar slotted
   exactly where the module will land: before the first effect, between
   two effects, or after the last one. */
.fx-drop-indicator {
  width: 4px;
  align-self: stretch;
  min-height: 140px;
  border-radius: 2px;
  background: var(--phosphor);
  box-shadow: 0 0 10px var(--phosphor), 0 0 3px var(--phosphor);
  flex: 0 0 auto;
}

.fx-rack {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  overflow-x: auto;
  min-height: 60px;
  flex: 1 1 auto;
  padding-bottom: 6px;
}

.fx-unit-card {
  position: relative;
  background: linear-gradient(180deg, var(--module-panel), var(--module-panel-2));
  border: 1px solid #000;
  border-radius: 3px;
  padding: 14px 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.05), 0 3px 6px rgba(0,0,0,0.5);
  flex: 0 0 220px;
  width: 220px;
}

.module-screw {
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--chrome), var(--module-screw));
  box-shadow: 0 1px 1px rgba(0,0,0,0.6);
}

.module-screw-tl { top: 5px; left: 5px; }
.module-screw-tr { top: 5px; right: 5px; }
.module-screw-bl { bottom: 5px; left: 5px; }
.module-screw-br { bottom: 5px; right: 5px; }

.fx-unit-header {
  display: flex;
  align-items: center;
  gap: 6px;
  justify-content: space-between;
  padding: 0 4px;
}

.fx-drag-handle {
  cursor: grab;
  color: var(--module-text);
  opacity: 0.6;
  font-size: 0.9rem;
  user-select: none;
  touch-action: none;
}

.fx-drag-handle:active { cursor: grabbing; }

.module-leds {
  display: flex;
  gap: 5px;
  justify-content: center;
  padding: 2px 0 4px;
}

.led {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #2a1010;
  box-shadow: inset 0 0 1px rgba(0,0,0,0.8);
}

.led.led-green.lit {
  background: var(--module-led-green);
  box-shadow: 0 0 4px var(--module-led-green);
}

.led.led-red {
  background: #4a1414;
}

.module-knob-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 8px;
}

.module-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid #000;
}

.module-brand {
  font-size: 0.55rem;
  letter-spacing: 0.06em;
  color: var(--module-text);
  opacity: 0.35;
  text-transform: uppercase;
}

.fx-mute-switch {
  width: 34px;
  height: 16px;
  border-radius: 8px;
  border: 1px solid #000;
  background: #2a2823;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.6);
  cursor: pointer;
  position: relative;
  padding: 0;
}

.fx-mute-knob {
  position: absolute;
  top: 1px; left: 1px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, var(--chrome), var(--chrome-shadow));
  transition: left 0.1s ease;
}

.fx-mute-switch.on {
  background: radial-gradient(circle at 35% 30%, var(--phosphor-dim), var(--phosphor-dim2));
}

.fx-mute-switch.on .fx-mute-knob { left: 19px; }

/* Module panels use white monospace labels and darker knurled knobs against
   their black background, distinct from the lighter theme used elsewhere. */
.fx-unit-card .fx-unit-title,
.eq8-card .fx-unit-title {
  font-family: var(--font-main);
  letter-spacing: 0.1em;
  color: var(--module-text);
  border-bottom: 1px solid #000;
  padding-bottom: 2px;
}

.fx-unit-card .ctrl-name, .eq8-card .ctrl-name,
.fx-unit-card .ctrl-value, .eq8-card .ctrl-value {
  color: var(--module-text);
}

.fx-unit-card .knob-body, .eq8-card .knob-body {
  background: radial-gradient(circle at 35% 30%, #4a4740, #1a1815 70%);
  box-shadow: 0 2px 0 #000, inset 0 1px 1px rgba(255,255,255,0.15);
}

.fx-unit-card .knob-pointer-line, .eq8-card .knob-pointer-line {
  background: var(--module-text);
}

.fx-unit-card .knob-ticks-svg line, .eq8-card .knob-ticks-svg line {
  stroke: #55524a;
}

.eq8-card {
  width: 100%;
  flex: 1 1 auto;
}

.eq8-card .eq-scope {
  height: 140px;
}

.eq8-bands-wrap {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 460px;
  overflow-y: auto;
  padding-right: 4px;
}

.eq-band-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  padding: 6px 0;
  border-bottom: 1px solid var(--metal-darker);
}

.eq-band-row .ctrl-slider {
  flex: 1;
  min-width: 90px;
}

.eq-band-row select {
  background: var(--bakelite);
  color: var(--phosphor);
  border: 2px solid var(--metal-darker);
  border-radius: 3px;
  padding: 5px 6px;
  font-family: var(--font-main);
  font-size: 0.75rem;
  align-self: center;
  min-width: 90px;
}

.eq-band-power {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  align-self: center;
  font-size: 0.7rem;
  font-weight: 700;
}

.fx-unit-title {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-dark);
}

.fx-power-btn {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid var(--bakelite);
  background: radial-gradient(circle at 35% 30%, #5a5850, #2a2823);
  color: #7a776a;
  cursor: pointer;
  font-size: 0.85rem;
  line-height: 1;
  box-shadow: 0 2px 0 var(--metal-darker);
}

.fx-power-btn.active {
  background: radial-gradient(circle at 35% 30%, var(--phosphor), var(--phosphor-dim));
  color: var(--screen-bg);
  border-color: var(--phosphor-dim2);
  box-shadow: 0 0 8px rgba(109,255,160,0.6);
}

.fx-power-btn:active { transform: translateY(1px); }

/* ---------- Mixer ---------- */

.mixer-panel { padding-top: 4px; }

.mixer-strips {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-bottom: 16px;
}

.mixer-strip {
  flex: 0 0 150px;
  background: var(--panel);
  border: 2px solid var(--metal-darker);
  border-radius: 6px;
  padding: 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  box-shadow: inset 1px 1px 0 var(--metal-light), inset -1px -1px 0 var(--metal-dark);
}

.mixer-master-strip {
  border-color: #1c1f26;
  background: linear-gradient(180deg, #d4d2c2, var(--panel) 60%);
}

.mixer-strip-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
  color: var(--text-dark);
  border-bottom: 1px solid var(--metal-darker);
  padding-bottom: 6px;
}

.mixer-mute-solo {
  display: flex;
  gap: 6px;
  justify-content: center;
}

.mixer-mute-btn, .mixer-solo-btn, .mixer-seq-btn {
  width: 30px;
  height: 24px;
  border-radius: 4px;
  border: 2px solid var(--bakelite);
  background: var(--bakelite);
  color: var(--metal-mid);
  font-weight: 700;
  font-size: 0.7rem;
  cursor: pointer;
}

.mixer-mute-btn.active {
  background: var(--accent-red);
  color: #2a0e0a;
  border-color: #5c1912;
}

.mixer-solo-btn.active {
  background: var(--accent-amber);
  color: #3a2708;
  border-color: #7a4f18;
}

.mixer-seq-btn.active {
  background: var(--phosphor);
  color: var(--screen-bg);
  border-color: var(--phosphor-dim2);
}

.mixer-seq-btn.pending {
  animation: mixer-seq-pending-pulse 0.6s ease-in-out infinite;
}

@keyframes mixer-seq-pending-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.mixer-sends-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: 1px solid var(--metal-darker);
  padding-top: 8px;
}

.mixer-meter {
  width: 100%;
  height: 60px;
}

.sends-section { margin-top: 8px; }

.send-add-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.send-add-row select {
  background: var(--bakelite);
  color: var(--phosphor);
  border: 2px solid var(--metal-darker);
  border-radius: 3px;
  padding: 6px 8px;
  font-family: var(--font-main);
  font-size: 0.8rem;
}

.sends-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}

.send-card { background: var(--panel-recess); }

/* ---------- Piano roll (pattern editor) ---------- */

.roll-section {
  margin: 20px 0;
  background: var(--panel);
  border: 2px solid var(--metal-darker);
  border-radius: 6px;
  padding: 14px 16px;
  box-shadow: inset 1px 1px 0 var(--metal-light), inset -1px -1px 0 var(--metal-dark);
}

.roll-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.roll-header h3 {
  margin: 0 auto 0 0;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--text-dark);
}

.roll-bars-select {
  background: var(--bakelite);
  color: var(--phosphor);
  border: 2px solid var(--metal-darker);
  border-radius: 3px;
  padding: 5px 8px;
  font-family: var(--font-main);
  font-size: 0.75rem;
}

.roll-clear-btn {
  width: auto;
  height: auto;
  border-radius: 4px;
  padding: 5px 10px;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
}

.roll-wrap {
  height: 420px;
  overflow-y: auto;
  overflow-x: hidden;
  border: 3px solid var(--bakelite);
  border-radius: 4px;
  box-shadow: inset 0 0 14px rgba(0,0,0,0.7);
  background: var(--screen-bg-2);
}

.roll-grid {
  display: grid;
  grid-auto-rows: 18px;
}

.roll-label {
  font-size: 0.6rem;
  color: var(--phosphor-dim);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 6px;
  font-family: var(--font-main);
  border-bottom: 1px solid rgba(109,255,160,0.06);
}

.roll-label-white { background: rgba(109,255,160,0.03); }
.roll-label-black { background: transparent; }

.roll-cell {
  border-bottom: 1px solid rgba(109,255,160,0.06);
  border-right: 1px solid rgba(109,255,160,0.05);
  cursor: pointer;
  position: relative;
  font-size: 0.55rem;
  color: var(--screen-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  touch-action: none;
}

.row-white { background: rgba(109,255,160,0.025); }
.row-black { background: transparent; }

.roll-cell.beat-start {
  border-left: 2px solid rgba(109,255,160,0.18);
}

.roll-cell:hover {
  background: rgba(109,255,160,0.15);
}

.roll-cell.active {
  background: linear-gradient(180deg, #d9564a, #9c3a30);
  border: 1px solid #6e241c;
  color: #f5e9d8;
}

.roll-cell.active.note-body {
  border-left: none;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

.roll-cell.dragging-preview {
  background: linear-gradient(180deg, #f2a65e, #c98a35);
  border: 1px solid #7a4f18;
}

.roll-cell.playhead {
  box-shadow: inset 0 0 0 2px rgba(255,255,255,0.5);
}

/* ---------- Keyboard / piano ---------- */

.keyboard-wrap {
  margin-top: 28px;
}

.keyboard-header-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.hint {
  color: var(--text-mid);
  font-size: 0.78rem;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  flex: 1;
}

.latch-btn {
  border: 2px solid var(--bakelite);
  border-radius: 4px;
  padding: 7px 12px;
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  background: linear-gradient(180deg, var(--bakelite-light), var(--bakelite));
  color: var(--metal-mid);
  white-space: nowrap;
}

.latch-btn.active {
  background: linear-gradient(180deg, var(--phosphor), var(--phosphor-dim));
  color: var(--screen-bg);
  border-color: var(--phosphor-dim2);
  box-shadow: 0 0 8px rgba(109,255,160,0.6);
}

.piano {
  position: relative;
  height: 140px;
  background: var(--bakelite);
  border: 3px solid var(--metal-darker);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: inset 0 0 16px rgba(0,0,0,0.6);
}

.key {
  position: absolute;
  top: 0;
  cursor: pointer;
  user-select: none;
  border-radius: 0 0 4px 4px;
}

.white-key {
  height: 100%;
  background: linear-gradient(180deg, #e9e7db, #cbc8b8);
  border: 1px solid #6b6957;
  z-index: 1;
}

.white-key.pressed {
  background: linear-gradient(180deg, var(--phosphor), var(--phosphor-dim));
}

.black-key {
  height: 60%;
  background: linear-gradient(180deg, #34322b, #17160f);
  border: 1px solid #000;
  z-index: 2;
}

.black-key.pressed {
  background: linear-gradient(180deg, var(--accent-amber), #7a521c);
}

@media (max-width: 640px) {
  .ctrl-grid { grid-template-columns: 1fr; }
  .osc-ctrl-grid { grid-template-columns: repeat(3, 1fr); }
  .octave-control { margin-left: 0; }
}

/* Portrait / tall-narrow devices (width < height, e.g. a phone held
   upright) - knobs are the primary hands-on control in this app, so make
   them noticeably bigger and easier to grab with a fingertip instead of a
   mouse pointer. Ticks/pointer scale automatically since they're sized in
   percentages of .knob-dial. */
@media (max-aspect-ratio: 1/1) {
  .knob-dial { width: 64px; height: 64px; }
  .knob-pointer-line { width: 3px; }
  .ctrl-grid, .module-knob-grid { gap: 16px 14px; }
  .ctrl-slider, .ctrl-knob { gap: 6px; }

  /* Bigger drag handles/palette icons and a wider gap between rack slots -
     easier to grab and drop precisely with a fingertip than a mouse pointer. */
  .fx-drag-handle { font-size: 1.3rem; padding: 6px; }
  .fx-palette-icon { width: 68px; height: 52px; font-size: 0.7rem; }
  .fx-rack { gap: 18px; }
  .fx-drop-indicator { width: 6px; }
}