/* LiveSquad — base visual: painel de rack de broadcast.
   Rótulos serigrafados em condensada, números em mono, LEDs de sinal. */

:root {
  --rack: #0e1015;
  --panel: #161922;
  --panel-hi: #1e2230;
  --panel-lo: #11131a;
  --line: #2b3040;
  --line-soft: #21252f;
  --ink: #e9ecf5;
  --ink-dim: #b3b9c9;
  --muted: #7d8499;

  --signal: #5ef2a0;
  --alert: #ff4d5e;
  --warn: #ffc266;
  --patch: #6fa8ff;

  --radius: 4px;
  --radius-lg: 10px;

  --font-label: "Barlow Condensed", "Arial Narrow", Arial, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", "Consolas", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--rack);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

body::before {
  /* textura sutil de metal escovado do rack */
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,.014) 0 1px, transparent 1px 3px),
    radial-gradient(120% 90% at 50% -20%, rgba(111,168,255,.07), transparent 60%);
  z-index: 0;
}

/* ---------- rótulos serigrafados ---------- */

.label {
  font-family: var(--font-label);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-weight: 600;
  font-size: 12px;
  color: var(--muted);
}

.label--tight { letter-spacing: .1em; }

h1, h2, h3 {
  font-family: var(--font-label);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-weight: 700;
  margin: 0;
}

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ---------- superfícies ---------- */

.panel {
  position: relative;
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-lo) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line-soft);
}

/* ---------- controles ---------- */

button, .btn {
  font-family: var(--font-label);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-weight: 600;
  font-size: 13px;
  color: var(--ink-dim);
  background: linear-gradient(180deg, var(--panel-hi), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 9px 14px;
  cursor: pointer;
  transition: border-color .12s ease, color .12s ease, background .12s ease, transform .06s ease;
}

button:hover:not(:disabled), .btn:hover { border-color: #3c435a; color: var(--ink); }
button:active:not(:disabled) { transform: translateY(1px); }
button:disabled { opacity: .4; cursor: not-allowed; }

button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--patch);
  outline-offset: 2px;
}

.btn--go { color: #06170f; background: linear-gradient(180deg, #78ffb8, var(--signal)); border-color: #2f8f61; }
.btn--go:hover { color: #06170f; border-color: #4fd393; }
.btn--danger { color: var(--alert); border-color: #4a2530; }
.btn--danger:hover { color: #fff; background: linear-gradient(180deg, #ff5f6f, var(--alert)); border-color: var(--alert); }

.btn--toggle[aria-pressed="true"] {
  color: var(--rack);
  background: linear-gradient(180deg, #ffd489, var(--warn));
  border-color: #a9762e;
}

input[type="text"], input[type="password"], select, textarea {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink);
  background: var(--panel-lo);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 12px;
  width: 100%;
}

input::placeholder { color: #565c70; font-family: var(--font-body); }

input[type="range"] {
  width: 100%;
  accent-color: var(--signal);
  background: transparent;
}

/* ---------- LED de sinal (elemento-assinatura) ---------- */

.led-ladder {
  display: flex;
  flex-direction: column-reverse;
  gap: 2px;
  width: 8px;
}

.led-ladder i {
  display: block;
  height: 4px;
  border-radius: 1px;
  background: #1d2130;
  transition: background .08s linear;
}

.led-ladder i.on { background: var(--signal); box-shadow: 0 0 6px rgba(94, 242, 160, .55); }
.led-ladder i.on.hot { background: var(--warn); box-shadow: 0 0 6px rgba(255, 194, 102, .55); }
.led-ladder i.on.peak { background: var(--alert); box-shadow: 0 0 6px rgba(255, 77, 94, .6); }

.tally {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-label);
  text-transform: uppercase;
  letter-spacing: .2em;
  font-size: 11px;
  color: var(--muted);
}

.tally .bulb {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #2a2f3d;
  border: 1px solid #3a4055;
}

.tally.live { color: var(--alert); }
.tally.live .bulb {
  background: var(--alert);
  border-color: var(--alert);
  box-shadow: 0 0 10px rgba(255, 77, 94, .8);
  animation: pulse 1.8s ease-in-out infinite;
}

@keyframes pulse { 50% { opacity: .55; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* ---------- utilidades ---------- */

.row { display: flex; align-items: center; gap: 10px; }
.grow { flex: 1; }
.stack { display: flex; flex-direction: column; gap: 10px; }
.hide { display: none !important; }
.scroll { overflow-y: auto; scrollbar-width: thin; scrollbar-color: #333a4d transparent; }
.scroll::-webkit-scrollbar { width: 8px; }
.scroll::-webkit-scrollbar-thumb { background: #333a4d; border-radius: 4px; }