/* ------------------------------------------------------------------ tokens */
:root {
  --bg: #0e1015;
  --panel: #151820;
  --panel-2: #1b1f29;
  --raised: #222734;
  --line: #262b37;
  --line-2: #323848;
  --text: #e8eaf0;
  --text-2: #a3abba;
  --text-3: #6f7889;
  --accent: #6ea8ff;
  --accent-ink: #0b1220;
  --accent-soft: rgba(110, 168, 255, .14);
  --groove: #0a0c10;
  --track: #2c3241;
  --thumb: #dfe3ea;
  --cap-a: #e4e7ed;
  --cap-b: #9ea6b4;
  --cap-line: #1b1f29;
  --mute: #ef5350;
  --solo: #f5b83d;
  --meter-g: #3ccf7a;
  --meter-y: #e8c547;
  --meter-r: #ef5350;
  --wave: #394051;
  --wave-played: #6ea8ff;
  --playhead: #ffffff;
  --marker: #d4a640;
  --shadow: 0 1px 0 rgba(255, 255, 255, .03) inset, 0 8px 24px rgba(0, 0, 0, .25);
  --fader-h: 228px;
  --strip-w: 76px;
  --gutter: 20px;
  --radius: 12px;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #eef0f3;
    --panel: #ffffff;
    --panel-2: #f6f7f9;
    --raised: #eceef2;
    --line: #dde1e8;
    --line-2: #cdd2db;
    --text: #141821;
    --text-2: #4b5363;
    --text-3: #7d8696;
    --accent: #2f6fdb;
    --accent-ink: #ffffff;
    --accent-soft: rgba(47, 111, 219, .1);
    --groove: #c9ced8;
    --track: #d6dae2;
    --thumb: #2c3241;
    --cap-a: #ffffff;
    --cap-b: #c4cad5;
    --cap-line: #6b7383;
    --meter-g: #22a95c;
    --meter-y: #d4ad1e;
    --wave: #c7ccd6;
    --wave-played: #2f6fdb;
    --playhead: #141821;
    --marker: #b07d12;
    --shadow: 0 1px 2px rgba(20, 24, 33, .06), 0 6px 18px rgba(20, 24, 33, .06);
    color-scheme: light;
  }
}

:root[data-theme="dark"] { color-scheme: dark; }

/* ------------------------------------------------------------------ base */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
kbd {
  font: 11px/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  padding: 2px 5px; border: 1px solid var(--line-2); border-bottom-width: 2px; border-radius: 4px;
  color: var(--text-2); background: var(--panel);
}
.app { max-width: 1680px; margin: 0 auto; padding: 0 0 28px; }
body.loading .transport, body.loading .overview, body.loading .mixer-wrap, body.loading .foot { visibility: hidden; }

/* ------------------------------------------------------------------ header */
.top {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 16px 24px; flex-wrap: wrap;
  padding: 26px var(--gutter) 14px;
}
.eyebrow { margin: 0 0 4px; font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--marker); font-weight: 600; }
h1 { margin: 0; font-size: clamp(24px, 3.2vw, 34px); line-height: 1.1; letter-spacing: -.02em; font-weight: 700; }
.meta { margin: 6px 0 0; color: var(--text-2); }
.partial { margin: 8px 0 0; color: var(--solo); font-size: 13px; }
.top-right { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.session {
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 9px 10px; max-width: 260px;
}
.ab {
  display: inline-flex; padding: 4px; gap: 4px; border-radius: 14px;
  background: var(--panel); border: 1px solid var(--line); box-shadow: var(--shadow);
}
.ab button {
  display: flex; flex-direction: column; align-items: flex-start; gap: 1px;
  border: 0; background: transparent; padding: 8px 16px; border-radius: 10px; min-width: 132px; text-align: left;
  color: var(--text-2); transition: background .15s, color .15s;
}
.ab button b { font-size: 14px; font-weight: 650; color: var(--text); }
.ab button small { font-size: 11px; }
.ab button:hover { background: var(--panel-2); }
.ab button[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); }
.ab button[aria-pressed="true"] b { color: var(--accent-ink); }
.ab button[aria-pressed="true"] small { color: var(--accent-ink); opacity: .8; }

/* ------------------------------------------------------------------ transport */
.transport {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 10px 18px; flex-wrap: wrap;
  margin: 0 var(--gutter); padding: 10px 14px;
  background: var(--panel);
  background: color-mix(in srgb, var(--panel) 92%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow);
}
.play {
  width: 50px; height: 50px; border-radius: 50%; border: 0; flex: none;
  display: grid; place-items: center; background: var(--accent); color: var(--accent-ink);
  box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 35%, transparent);
  transition: transform .1s;
}
.play:active { transform: scale(.96); }
.play svg { width: 24px; height: 24px; fill: currentColor; }
.play .i-pause, .play.is-playing .i-play { display: none; }
.play.is-playing .i-pause { display: block; }
.jumps { display: flex; gap: 2px; }
.icon-btn {
  width: 38px; height: 38px; display: grid; place-items: center; border-radius: 10px;
  border: 0; background: transparent; color: var(--text-2);
}
.icon-btn:hover { background: var(--panel-2); color: var(--text); }
.icon-btn svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.icon-btn svg text { fill: currentColor; stroke: none; font: 700 7px system-ui, sans-serif; }
.icon-btn[hidden] { display: none; }
.clock { display: flex; align-items: baseline; gap: 8px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.clock .pos { font-size: 22px; font-weight: 650; letter-spacing: -.01em; }
.clock .dur { color: var(--text-3); }
.clock .wall { color: var(--text-2); font-size: 12px; padding-left: 10px; border-left: 1px solid var(--line-2); }
.status { color: var(--text-2); font-size: 13px; min-height: 18px; display: flex; align-items: center; gap: 8px; }
.status.busy::before {
  content: ""; width: 12px; height: 12px; border-radius: 50%;
  border: 2px solid var(--line-2); border-top-color: var(--accent); animation: spin .8s linear infinite;
}
.status.err { color: var(--mute); }
@keyframes spin { to { transform: rotate(360deg); } }
.out { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.vol { display: flex; align-items: center; gap: 10px; color: var(--text-2); font-size: 13px; }
.vol output { min-width: 58px; font-variant-numeric: tabular-nums; color: var(--text); font-size: 12px; }
.outmeter { display: grid; gap: 3px; width: 92px; }
.outmeter i {
  position: relative; display: block; height: 5px; border-radius: 3px; overflow: hidden;
  background: linear-gradient(to right, var(--meter-g) 0 70%, var(--meter-y) 70% 90%, var(--meter-r) 90%);
}
.outmeter b { position: absolute; inset: 0; background: var(--groove); transform-origin: right center; transform: scaleX(1); }

/* range inputs (volume, pan, sends, EQ) */
input[type="range"] {
  -webkit-appearance: none; appearance: none; background: transparent; width: 100%; height: 20px; margin: 0; cursor: pointer;
  --a: 0%; --b: 0%;
  --grad: linear-gradient(to right, var(--track) var(--a), var(--accent) var(--a), var(--accent) var(--b), var(--track) var(--b));
}
input[type="range"]::-webkit-slider-runnable-track { height: 4px; border-radius: 2px; background: var(--grad); }
input[type="range"]::-moz-range-track { height: 4px; border-radius: 2px; background: var(--grad); }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 14px; height: 14px; margin-top: -5px; border-radius: 50%;
  background: var(--thumb); border: 0; box-shadow: 0 1px 3px rgba(0, 0, 0, .35);
}
input[type="range"]::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: var(--thumb); border: 0; box-shadow: 0 1px 3px rgba(0, 0, 0, .35); }
#master { width: 150px; --a: 0%; }

/* ------------------------------------------------------------------ overview */
.overview { padding: 14px var(--gutter) 4px; }
.wave-wrap { position: relative; }
#wave {
  display: block; width: 100%; height: 76px; border-radius: 10px; cursor: pointer; touch-action: none;
  background: var(--panel); border: 1px solid var(--line);
}
.hover {
  position: absolute; top: -30px; transform: translateX(-50%); pointer-events: none; white-space: nowrap;
  background: var(--raised); color: var(--text); border: 1px solid var(--line-2);
  font-size: 12px; padding: 3px 8px; border-radius: 6px; font-variant-numeric: tabular-nums;
}
.markers { display: flex; gap: 6px; flex-wrap: wrap; padding: 10px 0 0; }
.chip {
  border: 1px solid var(--line); background: var(--panel); border-radius: 999px; padding: 4px 11px 4px 8px;
  font-size: 12px; color: var(--text-2); display: inline-flex; align-items: baseline; gap: 4px;
}
.chip:hover { border-color: var(--marker); color: var(--text); }
.chip-t { color: var(--marker); font-variant-numeric: tabular-nums; font-weight: 600; }

/* ------------------------------------------------------------------ mixer */
.mixer-wrap { margin-top: 14px; }
.mixer-tools { display: flex; align-items: center; gap: 8px 16px; flex-wrap: wrap; padding: 0 var(--gutter) 10px; }
.mixer-tools h2 { margin: 0; font-size: 16px; }
.hint { margin: 0; color: var(--text-3); font-size: 12.5px; flex: 1 1 260px; }
body[data-mode="A"] .hint::before { content: "You’re hearing the board mix. "; color: var(--solo); }
.tools { display: flex; gap: 8px; align-items: center; }
.ghost-btn, .primary-btn {
  border: 1px solid var(--line-2); background: var(--panel); border-radius: 9px; padding: 7px 13px; font-size: 13px;
  color: var(--text); list-style: none; display: inline-block;
}
.ghost-btn:hover { background: var(--panel-2); }
.ghost-btn:disabled { opacity: .45; cursor: default; }
.primary-btn { background: var(--accent); color: var(--accent-ink); border-color: transparent; font-weight: 600; }
.menu { position: relative; }
.menu summary::-webkit-details-marker { display: none; }
.menu-pop {
  position: absolute; right: 0; top: calc(100% + 6px); z-index: 30; width: 270px; padding: 6px;
  background: var(--raised); border: 1px solid var(--line-2); border-radius: 12px; box-shadow: var(--shadow);
}
.menu-pop button {
  display: flex; flex-direction: column; gap: 2px; width: 100%; text-align: left; border: 0; background: transparent;
  padding: 9px 10px; border-radius: 8px;
}
.menu-pop button:hover { background: var(--accent-soft); }
.menu-pop small { color: var(--text-2); font-size: 12px; }

.mixer {
  display: flex; gap: 6px; overflow-x: auto; overscroll-behavior-x: contain;
  padding: 4px var(--gutter) 14px; scroll-padding: 0 var(--gutter);
  scrollbar-width: thin; scrollbar-color: var(--line-2) transparent;
}
.strip {
  position: relative; flex: 0 0 var(--strip-w); width: var(--strip-w);
  display: flex; flex-direction: column; gap: 7px;
  padding: 10px 6px 8px; border-radius: 11px; background: var(--panel); border: 1px solid var(--line);
  transition: opacity .2s, border-color .2s;
}
.strip::before {
  content: ""; position: absolute; top: -1px; left: 12px; right: 12px; height: 3px; border-radius: 0 0 3px 3px; background: var(--c);
}
.strip.is-selected { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent) inset; }
.strip.is-off { opacity: .5; }
body[data-mode="A"] .strip:not(.strip-board):not(.is-off) { opacity: .72; }
body[data-mode="B"] .strip-board { opacity: .55; }
.strip-board { background: color-mix(in srgb, var(--panel) 88%, var(--marker)); margin-right: 6px; }
body[data-mode="A"] .strip-board { border-color: var(--marker); }
.strip-fx { margin-left: 6px; background: color-mix(in srgb, var(--panel) 92%, #9b7cf0); }

.strip-head { min-height: 40px; text-align: center; }
.strip-name {
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
  width: 100%; border: 0; background: transparent; padding: 0 2px; border-radius: 6px;
  font-size: 12.5px; font-weight: 650; line-height: 1.2; color: var(--text); overflow-wrap: anywhere;
}
button.strip-name:hover { color: var(--accent); }
.strip-sub { font-size: 10.5px; color: var(--text-3); margin-top: 2px; font-variant-numeric: tabular-nums; }
.strip-note { font-size: 10.5px; color: var(--text-3); text-align: center; line-height: 1.3; min-height: 66px; display: grid; align-content: center; }

.strip-actwrap { position: relative; height: 14px; border-radius: 3px; background: var(--groove); overflow: hidden; }
.strip-act { display: block; width: 100%; height: 100%; }
.strip-act-head { position: absolute; top: 0; bottom: 0; width: 1px; background: var(--text); opacity: .7; left: 0; }

.hslider { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 8px; }
.hslider .readout { font-size: 12px; font-variant-numeric: tabular-nums; color: var(--text-2); min-width: 58px; text-align: right; }
.hslider.stack { display: block; }
.hslider.stack .cap { display: flex; justify-content: space-between; font-size: 10px; color: var(--text-3); line-height: 1; padding: 0 2px; }
.hslider.stack .readout { min-width: 0; font-size: 10px; color: var(--text-2); }
.hslider.stack input[type="range"] { height: 18px; }
.hslider.stack input[type="range"]::-webkit-slider-thumb { width: 12px; height: 12px; margin-top: -4px; }
.hslider.stack input[type="range"]::-moz-range-thumb { width: 12px; height: 12px; }
.hslider.placeholder { height: 28px; }

.strip-body { display: flex; justify-content: center; align-items: stretch; gap: 5px; height: var(--fader-h); }
.fader { position: relative; width: 42px; height: 100%; touch-action: none; cursor: ns-resize; border-radius: 6px; --pos: .75; }
.fader:focus-visible { outline-offset: 0; }
.fader-slot { position: absolute; left: 60%; top: 17px; bottom: 17px; width: 4px; margin-left: -2px; background: var(--groove); border-radius: 2px; }
.fader-scale { position: absolute; left: 0; top: 17px; bottom: 17px; width: 14px; pointer-events: none; }
.tick { position: absolute; left: 0; transform: translateY(50%); font-size: 8px; line-height: 1; color: var(--text-3); font-variant-numeric: tabular-nums; }
.tick.zero { color: var(--text-2); font-weight: 700; }
.fader-cap {
  position: absolute; left: 60%; width: 28px; height: 34px; margin-left: -14px;
  bottom: calc(var(--pos) * (100% - 34px));
  border-radius: 5px; background: linear-gradient(var(--cap-a), var(--cap-b));
  box-shadow: 0 3px 6px rgba(0, 0, 0, .35), 0 0 0 1px rgba(0, 0, 0, .25);
}
.fader-cap::after { content: ""; position: absolute; left: 4px; right: 4px; top: 50%; height: 2px; margin-top: -1px; background: var(--cap-line); border-radius: 1px; }
.fader.dragging .fader-cap, .fader:focus-visible .fader-cap { box-shadow: 0 3px 6px rgba(0, 0, 0, .35), 0 0 0 2px var(--accent); }

.meter { position: relative; width: 7px; margin: 17px 0; border-radius: 3px; background: var(--groove); overflow: hidden; }
.meter.ghost { opacity: .4; }
.meter-fill {
  position: absolute; inset: 0;
  background: linear-gradient(to top, var(--meter-g) 0 70%, var(--meter-y) 70% 90%, var(--meter-r) 90%);
}
.meter-mask { position: absolute; inset: 0; background: var(--groove); transform-origin: top center; transform: scaleY(1); }
.meter-peak { position: absolute; left: 0; right: 0; top: 0; height: 100%; border-top: 2px solid var(--text); transform: translateY(100%); opacity: 0; }
.meter-clip { position: absolute; left: 0; right: 0; top: 0; height: 4px; }
.meter-clip.on { background: var(--meter-r); }

.strip-db { display: block; text-align: center; font-size: 12px; font-variant-numeric: tabular-nums; color: var(--text-2); }
.strip-btns { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; }
.strip-board .strip-btns, .strip-fx .strip-btns { grid-template-columns: 1fr; }
.btn-m, .btn-s {
  height: 28px; border-radius: 7px; border: 1px solid var(--line-2); background: var(--panel-2);
  font-size: 12px; font-weight: 700; color: var(--text-2);
}
.btn-m[aria-pressed="true"] { background: var(--mute); border-color: var(--mute); color: #fff; }
.btn-s[aria-pressed="true"] { background: var(--solo); border-color: var(--solo); color: #241a00; }
.strip.has-eq .strip-name::after { content: " •"; color: var(--accent); }

/* ------------------------------------------------------------------ channel detail */
.detail {
  margin: 4px var(--gutter) 0; padding: 16px 18px 18px; border-radius: var(--radius);
  background: var(--panel); border: 1px solid var(--line); box-shadow: var(--shadow);
}
.detail-head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; }
.detail h3 { margin: 0; font-size: 18px; }
.detail-head p { margin: 4px 0 0; color: var(--text-2); font-size: 13px; }
.detail-body { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px 28px; margin-top: 14px; }
.field > span { display: block; font-size: 11px; text-transform: uppercase; letter-spacing: .07em; color: var(--text-3); margin-bottom: 6px; font-weight: 600; }
.field .row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.field.name input {
  width: 100%; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--line-2); background: var(--panel-2);
}
.field .hslider { flex: 1 1 140px; }
.field.eq .row { display: grid; grid-template-columns: 1fr; gap: 4px; }
.band { display: grid; grid-template-columns: 38px 1fr; align-items: center; gap: 8px; }
.band b { font-size: 12px; font-weight: 600; color: var(--text-2); }
.toggle {
  border: 1px solid var(--line-2); background: var(--panel-2); border-radius: 8px; padding: 6px 11px; font-size: 13px; white-space: nowrap;
}
.toggle[aria-pressed="true"] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.field.actions { display: flex; gap: 8px; align-items: flex-end; flex-wrap: wrap; }

/* ------------------------------------------------------------------ misc */
.foot { display: flex; flex-wrap: wrap; gap: 8px 22px; padding: 18px var(--gutter) 0; color: var(--text-3); font-size: 12.5px; }
.foot span { display: inline-flex; align-items: center; gap: 4px; }
.fatal { margin: 40px var(--gutter); padding: 20px; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--mute); }
.fatal h2 { margin: 0 0 6px; font-size: 18px; }
.fatal p { margin: 0; color: var(--text-2); }
.toast {
  position: fixed; left: 50%; bottom: 22px; z-index: 50; transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
  display: flex; align-items: center; gap: 14px; max-width: calc(100vw - 32px);
  padding: 10px 14px; border-radius: 11px; background: var(--raised); border: 1px solid var(--line-2);
  box-shadow: var(--shadow); transition: opacity .2s, transform .2s; font-size: 13.5px;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); pointer-events: auto; }
.toast button { border: 0; background: transparent; color: var(--accent); font-weight: 650; padding: 2px 4px; }

/* ------------------------------------------------------------------ small screens */
@media (max-width: 760px) {
  :root { --gutter: 16px; --strip-w: 68px; --fader-h: 184px; }
  .top { padding-top: 20px; align-items: stretch; }
  .top-right, .ab { width: 100%; }
  .ab button { flex: 1; min-width: 0; padding: 8px 12px; }
  .transport { gap: 8px 12px; padding: 10px; }
  .clock .pos { font-size: 19px; }
  .clock .wall { display: none; }
  .out { margin-left: 0; width: 100%; }
  .vol { flex: 1; }
  #master { width: auto; flex: 1; }
  .outmeter { width: 64px; }
  #wave { height: 58px; }
  .markers { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; padding-bottom: 2px; }
  .chip { flex: none; }
  .hint { flex-basis: 100%; order: 3; }
  .tools { margin-left: auto; }
  .foot { display: none; }
}
@media (max-height: 760px) and (min-width: 761px) {
  :root { --fader-h: 190px; }
  .top { padding-top: 16px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}