:root {
  --mixer-bg: #111319;
  --mixer-surface: #181b23;
  --mixer-surface-alt: #1f222c;
  --mixer-border: #2a2f3b;
  --mixer-accent: #4cc2ff;
  --mixer-accent-soft: rgba(76, 194, 255, 0.18);
  --mixer-text: #f3f5ff;
  --mixer-text-muted: #9094a5;
  --mixer-danger: #ff4c6a;
  --mixer-warning: #ffd66b;
  --mixer-radius-lg: 12px;
  --mixer-radius-sm: 6px;
  --mixer-gap: 12px;
  --mixer-font-family: system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, #252a36 0, #090a0f 55%);
  color: var(--mixer-text);
  font-family: var(--mixer-font-family);
}

/* Layout */

.btn-dark {
    color: #949ea9 !important;
    background-color: transparent !important;
    border-color: transparent !important;
}

.mixer {
  min-height:600px;
  max-width: 1440px;
  margin: 16px auto;
  padding: 16px 20px 24px;
  background: linear-gradient(135deg, #12131a 0, #111319 40%, #08090d 100%);
  border-radius: 16px;
  border: 1px solid #242837;
  box-shadow:
    0 18px 55px rgba(0, 0, 0, 0.65),
    0 0 0 1px rgba(255, 255, 255, 0.02);
}

.mixer-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.mixer-header h1 {
  font-size: 1.25rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0;
}

.mixer-header-meta {
  display: flex;
  gap: 12px;
  font-size: 0.78rem;
  color: var(--mixer-text-muted);
}

.mixer-menubar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  padding: 6px 10px;
  background: linear-gradient(180deg, #181b23 0, #111319 100%);
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.menubar-tabs {
  display: flex;
  gap: 8px;
}

.menubar-tab {
  background: radial-gradient(circle at top, #1f2230 0, #0f1119 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  color: var(--mixer-text-muted);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 20px;
  cursor: pointer;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 2px 6px rgba(0, 0, 0, 0.45);
  transition: border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.menubar-tab:hover,
.menubar-tab:focus-visible {
  color: var(--mixer-text);
  border-color: rgba(255, 255, 255, 0.25);
}

.menubar-tab.active {
  color: var(--mixer-accent);
  border-color: var(--mixer-accent);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 0 10px rgba(76, 194, 255, 0.35);
}

.menubar-tab:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  box-shadow: none;
  border-color: rgba(255, 255, 255, 0.08);
}

.menubar-actions {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
  margin-left: auto;
}

.menubar-group {
  position: relative;
}

.menubar-button {
  background: radial-gradient(circle at top, #1f2230 0, #0f1119 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--mixer-text);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
}

.menubar-button:hover {
  border-color: var(--mixer-accent);
  color: var(--mixer-accent);
}

.menubar-button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  border-color: rgba(255, 255, 255, 0.05);
}

.menubar-caret {
  font-size: 0.7rem;
  color: var(--mixer-text-muted);
}

.menubar-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 180px;
  background: var(--mixer-surface);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  box-shadow:
    0 12px 24px rgba(0, 0, 0, 0.6),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  padding: 4px 0;
  display: flex;
  flex-direction: column;
  z-index: 10;
}

.menubar-item {
  width: 100%;
  background: transparent;
  border: 0;
  color: var(--mixer-text);
  text-align: left;
  padding: 6px 14px;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  cursor: pointer;
}

.menubar-item:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.menubar-item:not(:disabled):hover {
  background: rgba(255, 255, 255, 0.06);
  color: var(--mixer-accent);
}

.menu-file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.mixer-main {
  display: flex;
  flex-wrap: nowrap;
  align-items: flex-start;
  gap: 20px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.mixer-main::-webkit-scrollbar {
  height: 8px;
}

.mixer-main::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.18);
  border-radius: 4px;
}

.mixer-main::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.25);
}

.mixer-main.aux-layout {
  flex-direction: column;
  overflow-x: hidden;
}

.mixer-main.aux-layout > * {
  width: 100%;
  flex: 0 0 auto;
}

.config-section {
  background: var(--mixer-surface);
  border-radius: var(--mixer-radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 18px 20px 20px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 10px 24px rgba(0, 0, 0, 0.45);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.config-section h2.section-title {
  margin-bottom: 4px;
}

.dc-filters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 10px;
}

.mixer-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: var(--mixer-radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, #1c1f2b 0, #11131c 100%);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: var(--mixer-text);
}

.mixer-checkbox-input {
  width: 16px;
  height: 16px;
  accent-color: var(--mixer-accent);
  cursor: not-allowed;
}

.mixer-checkbox-label {
  color: var(--mixer-text-muted);
}

.options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 8px;
}

.options-panel {
  background: linear-gradient(180deg, #191c27 0, #10121a 100%);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--mixer-radius-sm);
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

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

.mixer-control-row > *:last-child {
  margin-left: auto;
}

.control-label {
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--mixer-text-muted);
}

.mixer-select {
  min-width: 110px;
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #0f1119;
  color: var(--mixer-text);
  font-size: 0.85rem;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--mixer-text) 50%),
    linear-gradient(135deg, var(--mixer-text) 50%, transparent 50%);
  background-position: calc(100% - 14px) calc(50% - 2px), calc(100% - 9px) calc(50% - 2px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.mixer-select:disabled {
  opacity: 0.4;
}

/* Channel Strips */

.channel-strips {
  display: flex;
  gap: 12px;
  padding: 8px 10px;
  border-radius: var(--mixer-radius-lg);
  background: linear-gradient(180deg, #151824 0, #10121a 100%);
  border: 1px solid var(--mixer-border);
  flex: 0 0 auto;
}

.channel-strip {
  min-width: 150px;
  max-width: 150px;
  background: var(--mixer-surface);
  border-radius: var(--mixer-radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 10px 10px 8px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 6px 18px rgba(0, 0, 0, 0.6);
}

.channel-strip.channel-strip-locked {
  border-color: rgba(255, 214, 107, 0.6);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    0 0 12px rgba(255, 214, 107, 0.25);
  background: linear-gradient(180deg, rgba(255, 214, 107, 0.08) 0, var(--mixer-surface) 60%);
}

.chip-linked {
  background: rgba(255, 214, 107, 0.15);
  border-color: rgba(255, 214, 107, 0.4);
  color: var(--mixer-warning);
}

.channel-strip-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.channel-name {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mixer-text-muted);
}

.channel-name-input {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mixer-text);
  background: transparent;
  border: none;
  text-align: center;
  width: 100%;
  font-weight: 600;
  outline: none;
  padding: 2px 4px;
}

.channel-name-input::placeholder {
  color: var(--mixer-text-muted);
}

.channel-name-input:focus {
  border-bottom: 1px solid var(--mixer-accent);
}

.channel-section {
  display: flex;
  flex-direction: column;
  gap: 15px;
  align-items: center;
  text-align: center;
}

.channel-fader-section {
  margin-top: 4px;
  align-items: center;
}

.fader-reading {
  font-size: 0.72rem;
  color: var(--mixer-text-muted);
}

/* Fields */

.field {
  display: flex;
  flex-direction: column;
  gap: 2px;
  width: 100%;
  align-items: center;
}

.field-label {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mixer-text-muted);
  text-align: center;
  margin-bottom: 10px;
}

select {
  width: 100%;
  padding: 4px 6px;
  font-size: 0.8rem;
  border-radius: var(--mixer-radius-sm);
  border: 1px solid #353a48;
  background: var(--mixer-surface-alt);
  color: var(--mixer-text);
  outline: none;
}

select:focus {
  border-color: var(--mixer-accent);
  box-shadow: 0 0 0 1px var(--mixer-accent-soft);
}

/* Buttons / Chips */

.chip {
  border-radius: 999px;
  border: 1px solid #353a48;
  background: #151824;
  color: var(--mixer-text-muted);
  font-size: 0.68rem;
  padding: 3px 8px;
  cursor: pointer;
}

.chip-small {
  padding-inline: 6px;
}

.chip:focus-visible,
.chip:hover {
  border-color: var(--mixer-accent);
  color: var(--mixer-accent);
}

.pill-button {
  align-self: center;
  padding: 4px 10px;
  font-size: 0.78rem;
  border-radius: 999px;
  border: 1px solid #3c4252;
  background: radial-gradient(circle at top, #22273a 0, #151824 80%);
  color: var(--mixer-text);
  cursor: pointer;
}

.pill-button:hover {
  border-color: var(--mixer-accent);
  box-shadow: 0 0 0 1px var(--mixer-accent-soft);
}

.btn-small {
  font-size: 0.7rem;
  padding: 3px 6px;
  min-width: 26px;
  text-align: center;
  border-radius: 4px;
  border: 1px solid #343846;
  background: #181b23;
  color: var(--mixer-text-muted);
  cursor: pointer;
}

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

.btn-mute {
  background: rgba(255, 99, 71, 0.14);
  border-color: rgba(255, 99, 71, 0.35);
}

.btn-solo {
  background: rgba(255, 240, 146, 0.12);
  border-color: rgba(255, 240, 146, 0.35);
}

/* Faders */

.fader {
  display: flex;
  gap: 6px;
  align-items: stretch;
}

.fader-track {
  position: relative;
  margin-left:18px;
  width: 26px;
  height: 150px;
  border-radius: 0;
  background: linear-gradient(180deg, #262a37 0, #080a0f 100%);
  border: 1px solid #3b4052;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.8);
}

.fader-track-wide {
  width: 36px;
}

.fader-thumb {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 32px;
  height: 18px;
  border-radius: 10px;
  background: linear-gradient(180deg, #f5f7ff 0, #c4c7d5 100%);
  box-shadow:
    0 1px 0 rgba(0, 0, 0, 0.9),
    0 0 0 1px rgba(0, 0, 0, 0.6);
  top: 40%; /* static mock position */

}




.fader-thumb-master {
  width: 40px;
}

.fader-scale {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--mixer-text-muted);
}

.fader-short .fader-track {
  height: 110px;
}

/* Knobs */

.pan-and-sends {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
  width: 100%;
}

.pan-knob-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.send-knobs-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 18px;
  justify-items: center;
  width: 100%;
}

/* ==== Minimal Flat Knobs ==== */

.mixer .knob {
  position: relative;
  border-radius: 50%;
  background: #1d2029;
  border: 2px solid #2d3240;
  display: flex;
  align-items: center;
  justify-content: center;
  width: auto;
  height: auto;
  aspect-ratio: 1 / 1;
}

.mixer .knob::before {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: 50%;
  background: #2b2f3b;
}

.mixer .knob-indicator {
  position: absolute;
  width: 3px;
  height: 12px;
  background: #f89609;
  border-radius: 2px;
  transform-origin: bottom center;
  transform: translateY(-4px);
}

.mixer .knob-pan {
  width: 52px;
}

.mixer .knob-pan .knob-indicator {
  height: 15px;
}

.mixer .knob-send {
  width: 36px;
}

/* Label under knob */
.knob-caption {
    line-height:30px;
    font-size: 0.68rem;
    color: var(--mixer-text-muted);
    text-align: center;
    margin-top:10px;
}


.knob-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.knob-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  width: 100%;
}

.knob-container .form-label {
  margin-bottom: 0;
  text-align: center;
  color: var(--mixer-text-muted);
}

.knob-wrapper .knob-value,
.knob-container .knob-value {
  font-size: 0.7rem;
  color: var(--mixer-text-muted);
  text-align: center;
}

.knob-wrapper .knob.disabled,
.knob-container .knob.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Footers */

.channel-strip-footer {
  margin-top: 2px;
  display: flex;
  justify-content: flex-end;
  gap: 6px;
}

/* Send / Return Section */

.section-title {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--mixer-text-muted);
  margin: 0 0 4px;
}

/* Master Section */

.master-section {
  display: none;
}

/* Mixer Controls Integration */

.eq-details {
  margin-top: 6px;
}

.eq-details summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
}

.eq-details summary::-webkit-details-marker {
  display: none;
}

.eq-controls {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.eq-band {
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--mixer-radius-sm);
  padding: 8px;
  background: rgba(0, 0, 0, 0.15);
}

.eq-band-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--mixer-text-muted);
}

.eq-band-body {
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.eq-params {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.75rem;
  color: var(--mixer-text-muted);
}

.eq-params input {
  width: 80px;
  padding: 2px 4px;
  border-radius: 4px;
  border: 1px solid #353a48;
  background: var(--mixer-surface-alt);
  color: var(--mixer-text);
}

.direct-out-options {
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.75rem;
  color: var(--mixer-text-muted);
}

.direct-out-options input {
  margin-right: 4px;
}

.mixer .level-slider-container {
  width: 100%;
}

.mixer .level-slider-container > label {
  font-size: 0.7rem;
  color: var(--mixer-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.mixer .level-slider-wrapper {
  width: 100%;
  height: 100%;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mixer .level-slider {
  -webkit-appearance: none;
  appearance: none;
  width: auto;
  height: 26px;
  background: transparent;
  margin: 0;
  display: inline-block;
}

.mixer .level-slider.vertical {
  transform-origin: center;
}

.mixer .level-slider::-webkit-slider-runnable-track {
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(180deg, #262a37 0, #080a0f 100%);
  border: 1px solid #3b4052;
}

.mixer .level-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: linear-gradient(180deg, #f5f7ff 0, #c4c7d5 100%);
  border: 1px solid rgba(0, 0, 0, 0.6);
  box-shadow:
    0 1px 0 rgba(0, 0, 0, 0.9),
    0 0 0 1px rgba(0, 0, 0, 0.4);
}

.mixer .level-slider::-moz-range-track {
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(180deg, #262a37 0, #080a0f 100%);
  border: 1px solid #3b4052;
}

.mixer .level-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: linear-gradient(180deg, #f5f7ff 0, #c4c7d5 100%);
  border: 1px solid rgba(0, 0, 0, 0.6);
}

.mixer .level-slider.vertical::-webkit-slider-thumb {
  transform: translateX(-2px);
}

.mixer .level-slider.vertical::-moz-range-thumb {
  transform: translateX(-2px);
}

.return-level-label {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.return-level-value {
  color: var(--mixer-accent);
  font-weight: 600;
  min-width: 2ch;
  text-align: right;
}
.send-return {
  padding: 10px 12px;
  border-radius: var(--mixer-radius-lg);
  border: 1px solid var(--mixer-border);
  background: radial-gradient(circle at top, #202438 0, #131621 100%);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.send-return-header {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.send-return-strips {
  display: flex;
  gap: 12px;
  padding: 8px 10px;
  border-radius: var(--mixer-radius-lg);
  background: linear-gradient(180deg, #151824 0, #10121a 100%);
  border: 1px solid var(--mixer-border);
  overflow-x: auto;
}

.send-return-strip {
  min-width: 160px;
  max-width: 180px;
  background: var(--mixer-surface);
  border-radius: var(--mixer-radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 10px 10px 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.04),
    0 6px 18px rgba(0, 0, 0, 0.4);
}

.send-return-strip.send-return-strip-locked {
  border-color: rgba(255, 214, 107, 0.6);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.03),
    0 0 12px rgba(255, 214, 107, 0.25);
  background: linear-gradient(180deg, rgba(255, 214, 107, 0.08) 0, var(--mixer-surface) 70%);
  opacity: 0.85;
}

.send-return-strip .fader {
  justify-content: center;
}

.send-return-strip .channel-section {
  width: 100%;
}