/* ZvZ Voice: Nocturne theme (dark only for now) */
:root {
  color-scheme: dark;
  --bg-base: oklch(0.145 0.022 290); --bg-surface: oklch(0.19 0.028 290); --bg-elevated: oklch(0.235 0.032 290);
  --border-subtle: oklch(0.3 0.03 290); --border-strong: oklch(0.42 0.045 290);
  --text-primary: oklch(0.96 0.012 290); --text-secondary: oklch(0.78 0.03 290); --text-muted: oklch(0.64 0.03 290);
  --accent: oklch(0.7 0.18 293); --accent-hover: oklch(0.76 0.16 293); --accent-fg: oklch(0.15 0.05 293);
  --positive: oklch(0.8 0.15 152); --danger: oklch(0.68 0.19 22); --warning: oklch(0.82 0.14 80);
  --glass-fill: color-mix(in oklch, var(--bg-surface) 64%, transparent); --glass-fill-strong: color-mix(in oklch, var(--bg-surface) 84%, transparent);
  --glass-border: color-mix(in oklch, var(--text-primary) 9%, transparent); --glass-highlight: color-mix(in oklch, var(--text-primary) 7%, transparent);
  --glass-blur: 20px; --glass-shadow: 0 24px 48px -16px color-mix(in oklch, oklch(0.06 0.025 290) 60%, transparent);
  --accent-soft: color-mix(in oklch, var(--accent) 16%, transparent); --accent-line: color-mix(in oklch, var(--accent) 42%, transparent); --accent-glow: color-mix(in oklch, var(--accent) 38%, transparent);
  --radius-control: 8px; --radius-card: 14px; --radius-panel: 18px; --ease-out-expo: cubic-bezier(0.16,1,0.3,1);

  --positive-soft: color-mix(in oklch, var(--positive) 16%, transparent);
  --positive-glow: color-mix(in oklch, var(--positive) 45%, transparent);
  --font-display: 'Sora', system-ui, sans-serif;
  --font-body: 'Manrope', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --gutter: 16px;
  --dock-h: 96px;
  --chip-h: 32px;
  --rows: 2;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; min-height: 100vh; min-height: 100dvh;
  background: var(--bg-base); color: var(--text-primary);
  font: 500 14px/1.45 var(--font-body);
  overflow-x: hidden;
}
.bg {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(900px 520px at 78% -8%, var(--accent-soft), transparent 70%),
    radial-gradient(700px 480px at 4% 108%, color-mix(in oklch, var(--accent) 9%, transparent), transparent 70%),
    var(--bg-base);
}
h1, h2, h3 { font-family: var(--font-display); margin: 0; font-weight: 600; letter-spacing: -0.01em; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent-hover); outline-offset: 2px; }

.glass {
  background: var(--glass-fill); border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow), inset 0 1px 0 var(--glass-highlight);
  -webkit-backdrop-filter: blur(var(--glass-blur)); backdrop-filter: blur(var(--glass-blur));
}
.glass-strong {
  background: var(--glass-fill-strong); border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow), inset 0 1px 0 var(--glass-highlight);
  -webkit-backdrop-filter: blur(var(--glass-blur)); backdrop-filter: blur(var(--glass-blur));
}

svg.ic { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.eyebrow { font: 600 11px/1 var(--font-display); letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-muted); }

/* ------------------------------------------------ brand */
.brand { display: flex; align-items: center; gap: 12px; }
.brand h1 { font-size: 22px; }
.brand .sub { margin: 2px 0 0; color: var(--text-muted); }
.brand.small { gap: 8px; font-family: var(--font-display); }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px; flex: none;
  background: radial-gradient(circle at 30% 25%, var(--accent-hover), var(--accent) 55%, color-mix(in oklch, var(--accent) 60%, black));
  box-shadow: 0 0 22px var(--accent-glow), inset 0 1px 0 color-mix(in oklch, white 40%, transparent);
  position: relative;
}
.brand-mark::after { content: ''; position: absolute; inset: 9px; border-radius: 50%; border: 2px solid var(--accent-fg); border-right-color: transparent; transform: rotate(-30deg); }
.brand.small .brand-mark { width: 24px; height: 24px; border-radius: 7px; }
.brand.small .brand-mark::after { inset: 6px; border-width: 1.5px; }
.demo-tag { font: 600 10px/1 var(--font-mono); text-transform: uppercase; letter-spacing: 0.06em; color: var(--warning); border: 1px solid color-mix(in oklch, var(--warning) 45%, transparent); border-radius: 999px; padding: 3px 7px; margin-left: 4px; vertical-align: middle; white-space: nowrap; display: inline-block; }

.count-pill { font: 700 11px/1 var(--font-mono); color: var(--text-secondary); background: color-mix(in oklch, var(--text-primary) 8%, transparent); border-radius: 999px; padding: 4px 8px; min-width: 24px; text-align: center; white-space: nowrap; }

/* ------------------------------------------------ avatars */
.av {
  --h: 290;
  display: inline-grid; place-items: center; flex: none;
  width: 26px; height: 26px; border-radius: 50%;
  background: oklch(0.4 0.09 var(--h)); color: oklch(0.96 0.03 var(--h));
  font: 700 11px/1 var(--font-display); text-transform: uppercase;
}
.av.lg { width: 40px; height: 40px; font-size: 15px; }
.av.sm { width: 24px; height: 24px; font-size: 10px; }

/* ------------------------------------------------ fields / buttons */
.field { display: grid; gap: 6px; margin-bottom: 14px; }
.field > span { font-size: 12px; font-weight: 600; color: var(--text-secondary); }
input[type=text], input[type=password], input:not([type]), select {
  width: 100%; height: 44px; padding: 0 14px;
  background: color-mix(in oklch, var(--bg-base) 70%, transparent);
  border: 1px solid var(--border-subtle); border-radius: var(--radius-control);
  transition: border-color .15s, background .15s;
}
input::placeholder { color: var(--text-muted); }
input:hover, select:hover { border-color: var(--border-strong); }
input:focus-visible, select:focus-visible { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
select {
  appearance: none; -webkit-appearance: none; padding-right: 38px; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none' stroke='%23a9a3c9' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M1 1.5l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 14px center;
}
select option { background: var(--bg-surface); color: var(--text-primary); }

.btn-primary {
  width: 100%; height: 52px; border: 0; border-radius: var(--radius-card);
  background: linear-gradient(180deg, var(--accent-hover), var(--accent));
  color: var(--accent-fg); font: 700 16px/1 var(--font-display);
  box-shadow: 0 10px 28px -8px var(--accent-glow), inset 0 1px 0 color-mix(in oklch, white 35%, transparent);
  transition: transform .15s var(--ease-out-expo), filter .15s, box-shadow .2s;
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-primary:active { transform: translateY(1px) scale(0.995); }
.btn-primary:disabled { opacity: .6; cursor: progress; }
.err { margin: 12px 0 0; padding: 10px 12px; border-radius: var(--radius-control); font-size: 13px; color: var(--danger); background: color-mix(in oklch, var(--danger) 12%, transparent); border: 1px solid color-mix(in oklch, var(--danger) 35%, transparent); }

.icon-btn {
  width: 44px; height: 44px; display: grid; place-items: center; flex: none;
  background: color-mix(in oklch, var(--text-primary) 6%, transparent);
  border: 1px solid var(--glass-border); border-radius: 12px; color: var(--text-secondary);
  transition: background .15s, color .15s, border-color .15s;
}
.icon-btn:hover { background: color-mix(in oklch, var(--text-primary) 11%, transparent); color: var(--text-primary); }
.icon-btn[aria-pressed=true] { background: color-mix(in oklch, var(--danger) 18%, transparent); border-color: color-mix(in oklch, var(--danger) 45%, transparent); color: var(--danger); }
.icon-btn.danger:hover { background: color-mix(in oklch, var(--danger) 18%, transparent); color: var(--danger); border-color: color-mix(in oklch, var(--danger) 45%, transparent); }

/* ------------------------------------------------ join screen */
.join { min-height: 100vh; min-height: 100dvh; display: grid; place-items: center; padding: 24px var(--gutter); }
.join-card { width: 100%; max-width: 440px; border-radius: var(--radius-panel); padding: 28px; }
.join-card .brand { margin-bottom: 24px; }
.lobby { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--glass-border); }
.lobby-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.lobby-people { display: flex; flex-wrap: wrap; gap: 6px; min-height: 28px; }
.lobby-people .pill { display: inline-flex; align-items: center; gap: 6px; height: 28px; padding: 2px 10px 2px 2px; border-radius: 999px; background: var(--bg-elevated); font-size: 12px; max-width: 100%; }
.lobby-people .pill span.n { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 130px; }
.lobby-people .more { align-self: center; color: var(--text-muted); font: 600 12px var(--font-mono); padding: 0 4px; }
.lobby-empty { margin: 0; color: var(--text-muted); font-size: 13px; min-height: 28px; display: flex; align-items: center; }
.lobby-people:not(:empty) + .lobby-empty { display: none; }
.lobby-people:empty { display: none; }

/* ------------------------------------------------ call layout */
.call { max-width: 1180px; margin: 0 auto; padding: 0 var(--gutter) calc(var(--dock-h) + 28px); }
.topbar { display: flex; align-items: center; justify-content: space-between; height: 56px; }
.audio-banner { width: 100%; margin: 0 0 12px; padding: 10px 14px; border-radius: var(--radius-control); border: 1px solid color-mix(in oklch, var(--warning) 45%, transparent); background: color-mix(in oklch, var(--warning) 12%, transparent); color: var(--warning); font-weight: 600; }
.foot-note { margin: 18px 0 0; text-align: center; font-size: 12px; color: var(--text-muted); }

.channels { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 12px; }
.ch { grid-column: span 4; }
.ch.caller { grid-column: span 8; }
.ch.leads { grid-column: span 4; }

.ch {
  --ring: transparent;
  position: relative; display: flex; flex-direction: column; gap: 10px; min-width: 0;
  padding: 14px; border-radius: var(--radius-card);
  background: var(--glass-fill); border: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 var(--glass-highlight);
  -webkit-backdrop-filter: blur(var(--glass-blur)); backdrop-filter: blur(var(--glass-blur));
  transition: border-color .2s, box-shadow .25s;
}
.ch.caller {
  background: linear-gradient(180deg, color-mix(in oklch, var(--accent) 13%, var(--bg-surface)), var(--glass-fill));
  border-color: var(--accent-line);
  box-shadow: 0 0 40px -12px var(--accent-glow), inset 0 1px 0 var(--glass-highlight);
}
.ch.talking { border-color: color-mix(in oklch, var(--accent) 70%, transparent); }
.ch.tx { border-color: var(--positive); box-shadow: 0 0 0 1px var(--positive), 0 0 28px -8px var(--positive-glow), inset 0 1px 0 var(--glass-highlight); }
.ch.dim .members, .ch.dim .ch-vol { opacity: .62; }

.ch-head { display: flex; align-items: center; gap: 10px; min-height: 40px; }
.ch-badge { width: 32px; height: 32px; border-radius: 9px; display: grid; place-items: center; flex: none; font: 700 13px var(--font-display); background: color-mix(in oklch, var(--text-primary) 8%, transparent); color: var(--text-secondary); }
.ch.caller .ch-badge { background: var(--accent); color: var(--accent-fg); box-shadow: 0 0 16px var(--accent-glow); }
.ch.leads .ch-badge { background: color-mix(in oklch, var(--accent) 24%, transparent); color: var(--accent-hover); }
.ch-title { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 3px; }
.ch-title h3 { font-size: 15px; display: flex; align-items: center; gap: 8px; }
.ch.caller .ch-title h3 { font-size: 17px; }
.ch-title small { color: var(--text-muted); font-size: 11px; height: 14px; line-height: 14px; }
.duck-tag { font: 600 10px/1 var(--font-mono); letter-spacing: .04em; color: var(--warning); opacity: 0; transition: opacity .2s; }
.duck-on .duck-tag { opacity: 1; }

.ch-btns { display: flex; gap: 6px; flex: none; }
.tgl {
  width: 38px; height: 38px; display: grid; place-items: center;
  border-radius: 10px; border: 1px solid var(--glass-border);
  background: color-mix(in oklch, var(--text-primary) 5%, transparent); color: var(--text-muted);
  transition: background .15s, color .15s, border-color .15s, box-shadow .2s;
}
.tgl:hover { color: var(--text-primary); background: color-mix(in oklch, var(--text-primary) 10%, transparent); }
.tgl[aria-pressed=true] { background: var(--accent-soft); border-color: var(--accent-line); color: var(--accent-hover); }
.tgl.talk[aria-pressed=true] { background: var(--accent); border-color: var(--accent); color: var(--accent-fg); box-shadow: 0 0 14px var(--accent-glow); }
.ch.tx .tgl.talk[aria-pressed=true] { background: var(--positive); border-color: var(--positive); box-shadow: 0 0 14px var(--positive-glow); }
.tgl.locked { cursor: default; }

.members { display: flex; flex-wrap: wrap; align-content: flex-start; gap: 6px; position: relative; min-height: calc(var(--rows) * var(--chip-h) + (var(--rows) - 1) * 6px); transition: opacity .2s; }
.members .empty { position: absolute; inset: 0; display: grid; place-items: center; color: var(--text-muted); font-size: 12px; border: 1px dashed var(--border-subtle); border-radius: 10px; pointer-events: none; }
.members .empty[hidden] { display: none; }
.chip {
  --h: 290;
  display: inline-flex; align-items: center; gap: 7px; height: var(--chip-h); max-width: 100%;
  padding: 3px 10px 3px 3px; border-radius: 999px;
  background: var(--bg-elevated); border: 1px solid transparent;
  font-size: 13px; font-weight: 600;
  transition: box-shadow .15s, background .15s, border-color .15s;
}
.chip .nm { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.chip .nm i { font-style: normal; color: var(--text-muted); font-weight: 500; }
.chip .role { color: var(--text-muted); display: grid; place-items: center; }
.chip .role svg { width: 14px; height: 14px; }
.chip.talker .role { color: var(--text-secondary); }
.chip.more { padding: 0 12px; color: var(--text-muted); font: 600 12px var(--font-mono); background: transparent; border: 1px dashed var(--border-subtle); }
.chip.me { border-color: var(--accent-line); }
.chip.speaking {
  background: color-mix(in oklch, var(--positive) 14%, var(--bg-elevated));
  box-shadow: 0 0 0 2px var(--positive), 0 0 16px var(--positive-glow);
  animation: speak 1.1s ease-in-out infinite;
}
.chip.speaking .role { color: var(--positive); }
@keyframes speak {
  0%, 100% { box-shadow: 0 0 0 2px var(--positive), 0 0 10px var(--positive-glow); }
  50% { box-shadow: 0 0 0 2px var(--positive), 0 0 20px var(--positive-glow); }
}

.ch-vol { display: flex; align-items: center; gap: 10px; color: var(--text-muted); transition: opacity .2s; }
.ch-vol output { font: 600 11px var(--font-mono); width: 34px; text-align: right; color: var(--text-secondary); }
.ch-vol .vslider { flex: 1; min-width: 0; }

/* range */
input[type=range] {
  -webkit-appearance: none; appearance: none; background: none; border: 0; padding: 0; height: 24px; margin: 0; width: 100%; cursor: pointer;
  --p: 100%;
}
input[type=range]::-webkit-slider-runnable-track { height: 4px; border-radius: 4px; background: linear-gradient(to right, var(--accent) var(--p), var(--border-subtle) var(--p)); }
input[type=range]::-moz-range-track { height: 4px; border-radius: 4px; background: var(--border-subtle); }
input[type=range]::-moz-range-progress { height: 4px; border-radius: 4px; background: var(--accent); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 16px; height: 16px; margin-top: -6px; border-radius: 50%; background: var(--text-primary); border: 0; box-shadow: 0 0 0 3px var(--accent-soft), 0 1px 4px #0006; }
input[type=range]::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: var(--text-primary); border: 0; box-shadow: 0 0 0 3px var(--accent-soft); }
input[type=range]:focus-visible { outline: none; }
input[type=range]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 3px var(--accent-line); }
input[type=range]:disabled { opacity: .5; cursor: default; }

/* ------------------------------------------------ custom channels */
.ch.custom .ch-badge { background: color-mix(in oklch, var(--accent) 14%, transparent); color: var(--accent-hover); }
.ch-title h3 { min-width: 0; }
.ch-title h3 .cname { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.ch-title h3 .duck-tag { flex: none; }
.ch-title small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tgl.del { width: 30px; height: 30px; align-self: center; border-radius: 8px; border-color: transparent; background: transparent; }
.tgl.del svg { width: 16px; height: 16px; }
.tgl.del:hover, .tgl.del:focus-visible { color: var(--danger); background: color-mix(in oklch, var(--danger) 14%, transparent); }
.ch.fresh { animation: ch-in .35s var(--ease-out-expo); }
@keyframes ch-in { from { opacity: 0; transform: translateY(6px) scale(.98); } }

.ch-add {
  grid-column: span 4; min-height: 156px; align-items: center; justify-content: center; text-align: center; gap: 6px;
  background: transparent; border: 1.5px dashed var(--border-strong); box-shadow: none; color: var(--text-secondary);
  -webkit-backdrop-filter: none; backdrop-filter: none; transition: border-color .2s, background .2s, color .2s;
}
.ch-add:hover { border-color: var(--accent-line); background: var(--accent-soft); color: var(--text-primary); }
.ch-add .add-ic { width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent-hover); }
.ch-add b { font: 600 15px var(--font-display); }
.ch-add small { color: var(--text-muted); font-size: 12px; }

.mini { width: min(400px, calc(100vw - 2 * var(--gutter))); padding: 0; border-radius: var(--radius-panel); color: var(--text-primary); margin: auto; overflow: hidden; }
.mini::backdrop { background: color-mix(in oklch, oklch(0.08 0.03 290) 70%, transparent); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
.mini[open] { animation: pop .25s var(--ease-out-expo); }
.mini .set-head { position: static; }
.mini-body { padding: 14px 20px 6px; }
.mini-body > h2 { font-size: 18px; margin-bottom: 8px; overflow-wrap: anywhere; }
.mini-body .field { margin-bottom: 8px; }
.mini-text { margin: 0 0 8px; color: var(--text-secondary); }
.mini-actions { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 20px 18px; }
.btn-ghost, .btn-solid { height: 44px; padding: 0 18px; border-radius: var(--radius-control); font-weight: 700; }
.btn-ghost { background: color-mix(in oklch, var(--text-primary) 6%, transparent); border: 1px solid var(--glass-border); color: var(--text-secondary); }
.btn-ghost:hover { color: var(--text-primary); background: color-mix(in oklch, var(--text-primary) 11%, transparent); }
.btn-solid { background: linear-gradient(180deg, var(--accent-hover), var(--accent)); border: 0; color: var(--accent-fg); }
.btn-solid:hover { filter: brightness(1.06); }
.btn-solid.danger { background: var(--danger); color: oklch(0.17 0.05 22); }
.btn-solid:disabled { opacity: .6; cursor: progress; }

/* ------------------------------------------------ dock */
.dock { position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; padding: 0 var(--gutter) calc(10px + env(safe-area-inset-bottom)); pointer-events: none; }
.dock-inner {
  pointer-events: auto; max-width: 1180px; margin: 0 auto; border-radius: var(--radius-panel); padding: 10px 12px;
  display: grid; grid-template-columns: minmax(180px, 1fr) minmax(260px, 340px) minmax(180px, 1fr); align-items: center; gap: 14px;
}
.me { display: flex; align-items: center; gap: 12px; min-width: 0; }
.me-text { min-width: 0; }
.me-name { display: flex; align-items: center; gap: 8px; font: 600 14px var(--font-display); }
.me-name > span:first-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.me-state { display: flex; align-items: center; gap: 7px; font-size: 12px; color: var(--text-muted); height: 18px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.me-state .live-badge { font: 700 10px/1 var(--font-mono); letter-spacing: .08em; padding: 4px 7px; border-radius: 6px; background: var(--positive); color: oklch(0.2 0.05 152); display: none; align-items: center; gap: 5px; flex: none; }
.me-state .live-badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; animation: blink 1s ease-in-out infinite; }
.me-state.live { color: var(--positive); }
.me-state.live .live-badge { display: inline-flex; }
@keyframes blink { 50% { opacity: .3; } }
.conn { width: 8px; height: 8px; border-radius: 50%; background: var(--text-muted); flex: none; box-shadow: 0 0 0 3px color-mix(in oklch, var(--text-muted) 20%, transparent); }
.conn.good { background: var(--positive); box-shadow: 0 0 0 3px var(--positive-soft); }
.conn.ok { background: var(--warning); box-shadow: 0 0 0 3px color-mix(in oklch, var(--warning) 20%, transparent); }
.conn.poor { background: var(--danger); box-shadow: 0 0 0 3px color-mix(in oklch, var(--danger) 20%, transparent); }

.ptt {
  height: 60px; width: 100%; display: flex; align-items: center; justify-content: center; gap: 12px;
  border-radius: 16px; border: 1px solid var(--border-strong);
  background: linear-gradient(180deg, var(--bg-elevated), var(--bg-surface));
  color: var(--text-primary); touch-action: none; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; -webkit-tap-highlight-color: transparent;
  transition: background .12s, border-color .12s, box-shadow .15s, color .12s;
}
.ptt:hover { border-color: var(--accent-line); }
.ptt-ic { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: color-mix(in oklch, var(--text-primary) 8%, transparent); }
.ptt-ic svg { width: 20px; height: 20px; }
.ptt-txt { display: flex; flex-direction: column; align-items: flex-start; gap: 3px; text-align: left; min-width: 0; }
.ptt-txt b { font: 700 14px/1 var(--font-display); letter-spacing: .01em; }
.ptt-txt small { font: 500 11px/1 var(--font-body); color: var(--text-muted); white-space: nowrap; }
.ptt.live {
  background: linear-gradient(180deg, color-mix(in oklch, var(--positive) 92%, white), var(--positive));
  border-color: var(--positive); color: oklch(0.18 0.05 152);
  box-shadow: 0 0 0 4px var(--positive-soft), 0 8px 30px -6px var(--positive-glow);
}
.ptt.live .ptt-ic { background: #0002; }
.ptt.live .ptt-txt small { color: oklch(0.3 0.06 152); }
.ptt:disabled { opacity: .55; cursor: not-allowed; }

.tools { display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.meter { width: 64px; height: 6px; border-radius: 6px; background: var(--border-subtle); overflow: hidden; margin-right: 6px; flex: none; }
.meter.wide { width: 100%; margin: 8px 0 0; height: 8px; }
.meter i { display: block; height: 100%; width: 100%; background: linear-gradient(90deg, var(--positive), var(--warning) 80%, var(--danger)); transform-origin: left; transform: scaleX(0); will-change: transform; }

.keycap { display: inline-grid; place-items: center; min-width: 26px; height: 24px; padding: 0 8px; border-radius: 6px; font: 700 11px/1 var(--font-mono); color: var(--text-primary); background: var(--bg-elevated); border: 1px solid var(--border-strong); border-bottom-width: 3px; white-space: nowrap; text-transform: none; }
.ptt.live .keycap { background: #fff3; border-color: #0004; color: inherit; }

/* ------------------------------------------------ settings */
.settings { width: min(540px, calc(100vw - 2 * var(--gutter))); max-height: min(86dvh, 760px); padding: 0; border-radius: var(--radius-panel); color: var(--text-primary); overflow: auto; margin: auto; }
.settings::backdrop { background: color-mix(in oklch, oklch(0.08 0.03 290) 70%, transparent); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
.settings[open] { animation: pop .25s var(--ease-out-expo); }
@keyframes pop { from { opacity: 0; transform: translateY(8px) scale(.98); } }
.set-head { display: flex; align-items: center; justify-content: space-between; padding: 18px 20px 6px; position: sticky; top: 0; z-index: 1; background: var(--glass-fill-strong); }
.set-head h2 { font-size: 18px; }
.set-sec { padding: 16px 20px; border-top: 1px solid var(--glass-border); }
.set-sec:first-of-type { border-top: 0; }
.set-sec h3 { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); margin-bottom: 12px; }
.seg { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; padding: 4px; border-radius: 12px; background: color-mix(in oklch, var(--bg-base) 70%, transparent); border: 1px solid var(--border-subtle); margin-bottom: 14px; }
.seg button { height: 36px; border: 0; border-radius: 9px; background: transparent; color: var(--text-secondary); font-weight: 600; transition: background .15s, color .15s; }
.seg button:hover { color: var(--text-primary); }
.seg button[aria-checked=true] { background: var(--accent); color: var(--accent-fg); box-shadow: 0 2px 10px -2px var(--accent-glow); }
.row-between { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 12px; }
.lbl { font-weight: 600; font-size: 13px; min-width: 0; flex: 1; }
.lbl small { display: block; color: var(--text-muted); font-weight: 500; font-size: 12px; margin-top: 2px; }
.set-sec > .lbl { margin-bottom: 14px; flex: none; }
.note { margin: 4px 0 0; color: var(--text-muted); font-size: 12px; }
.bind { display: inline-flex; align-items: center; gap: 10px; height: 44px; padding: 0 12px; border-radius: var(--radius-control); border: 1px solid var(--border-subtle); background: color-mix(in oklch, var(--bg-base) 70%, transparent); flex: none; }
.bind:hover { border-color: var(--border-strong); }
.bind .bind-act { font-size: 12px; color: var(--text-muted); }
.bind.capturing { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.bind.capturing .keycap { border-color: var(--accent); color: var(--accent-hover); animation: blink 1s ease-in-out infinite; }
.switch { width: 46px; height: 26px; border-radius: 999px; border: 1px solid var(--border-strong); background: var(--border-subtle); position: relative; padding: 0; flex: none; transition: background .2s, border-color .2s; }
.switch i { position: absolute; top: 2px; left: 2px; width: 20px; height: 20px; border-radius: 50%; background: var(--text-primary); transition: transform .2s var(--ease-out-expo); }
.switch[aria-checked=true] { background: var(--accent); border-color: var(--accent); }
.switch[aria-checked=true] i { transform: translateX(20px); background: var(--accent-fg); }
.conn-sec summary { cursor: pointer; font: 600 12px var(--font-display); text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); list-style: none; display: flex; align-items: center; gap: 8px; }
.conn-sec summary::-webkit-details-marker { display: none; }
.conn-sec summary::before { content: ''; width: 7px; height: 7px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: rotate(-45deg); transition: transform .2s; margin-right: 2px; }
.conn-sec[open] summary::before { transform: rotate(45deg); }
.conn-sum { text-transform: none; letter-spacing: 0; font-weight: 500; }
.kv { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-top: 14px; }
.kv div { background: color-mix(in oklch, var(--bg-base) 60%, transparent); border: 1px solid var(--glass-border); border-radius: 10px; padding: 8px 10px; }
.kv small { display: block; color: var(--text-muted); font-size: 11px; }
.kv b { font: 600 14px var(--font-mono); }

/* ------------------------------------------------ responsive */
@media (max-width: 960px) {
  .ch, .ch.caller, .ch.leads, .ch-add { grid-column: span 6; }
  .ch.caller { grid-column: span 12; }
  .dock-inner { grid-template-columns: minmax(150px, 1fr) minmax(220px, 300px) auto; gap: 10px; }
  .tools .meter { width: 40px; }
}
@media (max-width: 640px) {
  :root { --chip-h: 30px; --rows: 1; --dock-h: 156px; } /* dock stacks PTT above the me row */
  .join-card { padding: 22px 18px; }
  .channels { gap: 10px; }
  .ch, .ch.caller, .ch.leads, .ch-add { grid-column: 1 / -1; }
  .ch-add { min-height: 76px; flex-direction: row; gap: 12px; }
  .ch-add small { display: none; }
  .mini { margin: auto auto 0; width: 100vw; max-width: 100vw; border-radius: var(--radius-panel) var(--radius-panel) 0 0; }
  .ch { padding: 12px; gap: 8px; }
  .ch-head { min-height: 38px; }
  .dock-inner { grid-template-columns: 1fr auto; grid-template-areas: 'ptt ptt' 'me tools'; padding: 10px; gap: 10px 8px; }
  .dock-inner .ptt { grid-area: ptt; height: 64px; }
  .dock-inner .me { grid-area: me; }
  .dock-inner .tools { grid-area: tools; gap: 6px; }
  .tools .meter { display: none; }
  .icon-btn { width: 42px; height: 42px; }
  .av.lg { width: 36px; height: 36px; }
  .settings { margin: auto auto 0; width: 100vw; max-width: 100vw; border-radius: var(--radius-panel) var(--radius-panel) 0 0; max-height: 92dvh; }
  .kv { grid-template-columns: repeat(2, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  .chip.speaking { animation: none; }
  .me-state .live-badge::before, .bind.capturing .keycap { animation: none; }
  .settings[open], .mini[open], .ch.fresh { animation: none; }
  * { transition-duration: 0.01ms !important; }
}