:root {
  --bg: #090d11;
  --surface: #111820;
  --surface-raised: #17212b;
  --line: #293540;
  --text: #f2f6f8;
  --muted: #91a0ad;
  --red: #ef4444;
  --red-deep: #b91c1c;
  --green: #39d98a;
  --radius: 14px;
}

* { box-sizing: border-box; }
html { background: var(--bg); color-scheme: dark; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}
button { color: inherit; font: inherit; }
.app-shell {
  min-height: 100vh;
  background:
    radial-gradient(circle at 48% -10%, rgba(61, 78, 92, .34), transparent 38rem),
    linear-gradient(145deg, #0d1318, #080c10 68%);
}

.topbar {
  position: sticky; top: 0; z-index: 20;
  height: 72px; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  border-bottom: 1px solid var(--line);
  background: rgba(9, 13, 17, .9); backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 12px; min-width: 230px; }
.brand-mark {
  width: 42px; height: 42px; display: grid; place-items: center;
  border-radius: 11px; background: linear-gradient(145deg, #ff5c56, #ca2525);
  box-shadow: 0 8px 24px rgba(239, 68, 68, .25);
}
.brand strong, .brand small { display: block; }
.brand strong { font-size: 15px; letter-spacing: .14em; }
.brand small { margin-top: 2px; color: var(--muted); font-size: 12px; }
.connection { display: flex; align-items: center; gap: 9px; color: #bac4cc; font-size: 13px; }
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 12px var(--green); }
.top-actions { min-width: 230px; display: flex; justify-content: flex-end; gap: 8px; }
.role-switch, .icon-button {
  height: 42px; display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 0 13px; border: 1px solid var(--line); border-radius: 10px;
  background: #151d25; cursor: pointer;
}
.role-switch:hover, .icon-button:hover { border-color: #42505d; background: #1a242d; }
.icon-button { width: 42px; padding: 0; }

.workspace { min-height: calc(100vh - 72px); display: grid; grid-template-columns: 220px minmax(520px, 1fr) 310px; }
.channel-rail, .activity-rail { padding: 28px 16px; background: rgba(10, 15, 19, .62); }
.channel-rail { border-right: 1px solid var(--line); }
.activity-rail { border-left: 1px solid var(--line); }
.section-label, .eyebrow { margin: 0 0 12px; color: #738390; font-size: 11px; font-weight: 800; letter-spacing: .16em; }
.channel {
  width: 100%; margin: 0 0 5px; padding: 12px;
  display: grid; grid-template-columns: 22px 1fr auto; align-items: center; gap: 10px;
  border: 1px solid transparent; border-radius: 10px; background: transparent;
  color: #aab6c0; text-align: left; cursor: pointer;
}
.channel:hover { background: #151e26; color: white; }
.channel.active { background: rgba(239, 68, 68, .12); border-color: rgba(239, 68, 68, .28); color: #ff7772; }
.channel em { padding: 2px 7px; border-radius: 20px; background: #222c35; color: #aeb8c1; font-size: 11px; font-style: normal; }
.rail-card {
  margin-top: 26px; padding: 15px;
  display: grid; grid-template-columns: 24px 1fr; gap: 5px 8px;
  border: 1px solid #303c47; border-radius: 12px; background: #111820; color: #8e9da9;
}
.rail-card strong { color: #d5dce1; font-size: 13px; }
.rail-card span { grid-column: 1 / -1; margin-top: 4px; font-size: 11px; line-height: 1.45; }

.main-panel { width: 100%; max-width: 1180px; margin: 0 auto; padding: 30px clamp(18px, 3vw, 42px) 50px; align-self: start; }
.page-heading, .panel-heading, .activity-title { display: flex; align-items: center; justify-content: space-between; }
.page-heading { margin-bottom: 22px; }
.page-heading h1 { margin: 0; font-size: 28px; letter-spacing: -.03em; }
.page-heading .eyebrow { margin-bottom: 5px; }
.signal { display: flex; align-items: center; gap: 7px; color: #97a5b1; font-size: 12px; }
.dashboard-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 16px; }
.panel {
  overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(24, 33, 42, .98), rgba(15, 22, 28, .98));
  box-shadow: 0 18px 48px rgba(0, 0, 0, .2);
}
.panel-heading { padding: 17px 18px; border-bottom: 1px solid var(--line); }
.panel-heading h2 { margin: 0 0 4px; font-size: 15px; }
.panel-heading span { color: var(--muted); font-size: 12px; }
.panel-heading > svg { color: #71818e; }

.unit-list { padding: 7px; }
.unit-row {
  width: 100%; padding: 10px; display: grid; grid-template-columns: 44px 1fr auto; align-items: center; gap: 11px;
  border: 1px solid transparent; border-radius: 10px; background: transparent; text-align: left; cursor: pointer;
}
.unit-row:hover, .unit-row.selected { border-color: #33414d; background: #1b2630; }
.unit-row.selected { box-shadow: inset 3px 0 var(--red); }
.vehicle-icon { width: 40px; height: 40px; display: grid; place-items: center; border-radius: 9px; background: #25323d; color: #d9e1e6; }
.unit-copy strong, .unit-copy small { display: block; }
.unit-copy strong { font-size: 13px; }
.unit-copy small { margin-top: 4px; color: var(--muted); font-size: 11px; }
.unit-status { display: grid; grid-template-columns: 29px auto; align-items: center; gap: 8px; }
.unit-status b {
  width: 29px; height: 29px; display: grid; place-items: center;
  border: 1px solid color-mix(in srgb, var(--status-color), #000 35%); border-radius: 7px;
  background: color-mix(in srgb, var(--status-color), transparent 84%); color: var(--status-color); font-size: 12px;
}
.unit-status small { max-width: 60px; color: #7f8d98; font-size: 10px; }

.radio-panel { padding-bottom: 17px; }
.radio-display {
  margin: 16px; padding: 18px; border: 1px solid #2b3741; border-radius: 11px;
  background: #070b0e; box-shadow: inset 0 0 30px rgba(0, 0, 0, .72); text-align: center;
}
.radio-display > span { color: var(--green); font-size: 10px; font-weight: 800; letter-spacing: .16em; }
.radio-display > strong { display: block; margin-top: 5px; font-size: 18px; }
.radio-display > small { color: #71808c; font-size: 11px; }
.radio-display.transmitting { border-color: #8d3638; box-shadow: inset 0 0 36px rgba(239, 68, 68, .15); }
.radio-display.transmitting > span { color: #ff7772; }
.waveform { height: 58px; margin: 8px 0; display: flex; align-items: center; justify-content: center; gap: 3px; }
.waveform i { width: 3px; display: block; border-radius: 6px; background: #566570; transition: height .15s; }
.transmitting .waveform i { background: var(--red); animation: pulse .8s ease-in-out infinite alternate; }
.transmitting .waveform i:nth-child(3n) { animation-delay: .2s; }
@keyframes pulse { from { transform: scaleY(.45); opacity: .5; } to { transform: scaleY(1); opacity: 1; } }
.ptt {
  width: calc(100% - 32px); min-height: 68px; margin: 0 16px; padding: 10px 14px;
  display: grid; grid-template-columns: 34px 1fr auto; align-items: center; gap: 10px;
  border: 1px solid #a12828; border-radius: 11px;
  background: linear-gradient(145deg, #f04b47, #b91f24); color: white;
  box-shadow: 0 10px 26px rgba(185, 31, 36, .28); cursor: pointer; touch-action: none; user-select: none;
}
.ptt:hover { filter: brightness(1.08); }
.ptt.active { background: #7f1d1d; box-shadow: inset 0 3px 12px rgba(0, 0, 0, .35); }
.ptt span { text-align: left; font-size: 13px; font-weight: 750; }
.ptt kbd { padding: 4px 6px; border: 1px solid rgba(255, 255, 255, .34); border-radius: 5px; font-size: 9px; letter-spacing: .07em; }
.error { margin: 9px 16px 0; color: #ff8c88; font-size: 12px; }

.status-panel { margin-top: 16px; }
.status-grid { padding: 14px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.status-button {
  min-height: 60px; padding: 8px 10px; display: flex; align-items: center; gap: 10px;
  border: 1px solid #2c3944; border-radius: 10px; background: #121920; color: #9ca9b4; text-align: left; cursor: pointer;
}
.status-button:hover, .status-button.active {
  border-color: color-mix(in srgb, var(--status-color), #111 45%);
  background: color-mix(in srgb, var(--status-color), transparent 90%); color: #f2f6f8;
}
.status-button b {
  width: 33px; height: 33px; flex: 0 0 33px; display: grid; place-items: center;
  border-radius: 8px; background: color-mix(in srgb, var(--status-color), transparent 85%);
  color: var(--status-color); font-size: 14px;
}
.status-button span { font-size: 11px; line-height: 1.25; }

.activity-title { margin-bottom: 17px; padding: 0 4px; }
.activity-title h2 { margin: 0; font-size: 17px; }
.activity-title .eyebrow { margin-bottom: 5px; }
.count { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; background: #222d36; color: #adb8c1; font-size: 11px; }
.activity-list { display: flex; flex-direction: column; gap: 9px; }
.activity-item { padding: 13px; border: 1px solid #28343e; border-radius: 10px; background: #121920; }
.activity-line { margin-bottom: 9px; display: flex; justify-content: space-between; color: #788792; font-size: 10px; }
.activity-line em { color: #e6716d; font-style: normal; }
.activity-item strong { font-size: 12px; }
.activity-item p { margin: 4px 0 0; color: #93a0aa; font-size: 11px; line-height: 1.4; }
.activity-item audio { width: 100%; height: 30px; margin-top: 8px; }

@media (max-width: 1050px) {
  .workspace { grid-template-columns: 190px 1fr; }
  .activity-rail { grid-column: 1 / -1; border-top: 1px solid var(--line); border-left: 0; }
  .activity-list { display: grid; grid-template-columns: repeat(3, 1fr); }
  .brand, .top-actions { min-width: 0; }
}

@media (max-width: 720px) {
  .topbar { height: 64px; padding: 0 14px; gap: 10px; }
  .brand { min-width: 0; }
  .brand-mark { width: 38px; height: 38px; border-radius: 10px; }
  .brand strong { font-size: 13px; }
  .brand small, .connection { display: none; }
  .top-actions { min-width: 0; }
  .role-switch { width: 42px; padding: 0; font-size: 0; }
  .role-switch svg:last-child { display: none; }
  .workspace { display: block; min-height: calc(100vh - 64px); }
  .channel-rail { padding: 10px 12px; overflow-x: auto; border-right: 0; border-bottom: 1px solid var(--line); scrollbar-width: none; }
  .channel-rail::-webkit-scrollbar { display: none; }
  .channel-rail .section-label, .rail-card { display: none; }
  .channel-rail nav { display: flex; gap: 7px; width: max-content; }
  .channel { width: auto; margin: 0; padding: 9px 12px; grid-template-columns: 18px auto; background: #121920; border-color: #26323c; white-space: nowrap; font-size: 13px; }
  .channel.active { background: rgba(239, 68, 68, .15); }
  .channel em { display: none; }
  .main-panel { padding: 20px 12px 28px; }
  .page-heading { margin: 0 3px 15px; }
  .page-heading h1 { font-size: 23px; }
  .signal { display: none; }
  .dashboard-grid { grid-template-columns: 1fr; gap: 12px; }
  .radio-panel { grid-row: 1; }
  .panel { border-radius: 13px; }
  .radio-display { margin: 13px; padding: 15px; }
  .waveform { height: 50px; }
  .ptt { width: calc(100% - 26px); min-height: 76px; margin: 0 13px; grid-template-columns: 38px 1fr; padding: 12px 15px; border-radius: 13px; }
  .ptt span { font-size: 14px; }
  .ptt kbd { display: none; }
  .units-panel { margin-top: 0; }
  .unit-row { min-height: 64px; grid-template-columns: 44px 1fr 31px; }
  .unit-copy strong { font-size: 14px; }
  .unit-copy small { font-size: 11px; }
  .unit-status { display: block; }
  .unit-status small { display: none; }
  .status-panel { margin-top: 12px; }
  .status-grid { grid-template-columns: repeat(2, 1fr); gap: 7px; padding: 11px; }
  .status-button { min-height: 64px; padding: 8px; }
  .status-button span { font-size: 11px; }
  .activity-rail { padding: 22px 12px 34px; }
  .activity-list { grid-template-columns: 1fr; }
}

@media (max-width: 380px) {
  .brand strong { letter-spacing: .08em; }
  .icon-button { display: none; }
  .status-grid { grid-template-columns: 1fr; }
}
.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.login{width:min(100%,440px);padding:32px}.login h1{font-size:32px;margin-bottom:8px}.login p,.login small{color:var(--muted);line-height:1.5}.login label{display:block;margin-top:22px;font-size:16px}.login input{display:block;width:100%;margin-top:8px;background:#090d11;color:white;border:1px solid #42505d;border-radius:8px;padding:12px;font:inherit}.primary{width:100%;margin:24px 0 16px;border:0;border-radius:10px;padding:14px;background:#c82929;color:white;cursor:pointer;font-weight:700}.participants{margin-top:16px;padding:18px}.participants h2{font-size:16px;margin-top:0}.participants p{color:#adb8c1;font-size:14px}.radio-hint{margin:12px 16px 0;font-size:14px;color:var(--muted)}button:disabled{opacity:.5;cursor:not-allowed}button:focus-visible,input:focus-visible{outline:2px solid #ff7772;outline-offset:3px}.unit-copy strong,.panel-heading span,.status-button span,.activity-item p,.activity-item strong,.ptt span{font-size:14px}.channel em,.unit-copy small,.activity-line,.radio-display>small,.brand small{font-size:12px}.section-label,.eyebrow{font-size:12px}.activity-list{max-height:80vh;overflow-y:auto}.radio-display>span{font-size:12px}.signal{display:block}@media(max-width:720px){.signal{font-size:12px}.login{padding:24px}.activity-list{max-height:400px}}

.audio-tools{margin:16px;display:grid;gap:10px}.audio-tools label{display:grid;gap:6px;font-size:14px}.audio-tools select{width:100%;max-width:100%;padding:8px;background:#101820;color:white;border:1px solid #42505d;border-radius:6px}.audio-tools p,.audio-tools span{font-size:14px;color:#bac4cc;margin:0}.audio-tools meter{width:100%;height:16px}.audio-tools .role-switch{width:100%;font-size:14px}