/* Base compartida: colores, tipografía y componentes. */
:root {
  /* Concreto frío, acero azul, verde vidrio (entrada), naranja forja (salida). */
  --bg: #E3E6E9;
  --surface: #F5F7F8;
  --surface-2: #EBEEF0;
  --ink: #12171B;
  --muted: #56626C;
  --line: #C3CAD1;
  --accent: #1F4E79;
  --accent-ink: #FFFFFF;
  --in: #0B7A63;
  --in-ink: #FFFFFF;
  --in-bg: #CDEBE2;
  --out: #BE3F0B;
  --out-ink: #FFFFFF;
  --out-bg: #F8DDCF;
  --warn: #7A4F00;
  --warn-bg: #F6E5BD;
  --danger: #B3261E;
  --danger-bg: #F6D6D3;
  --f-display: 'Barlow Condensed', 'Arial Narrow', 'Roboto Condensed', system-ui, sans-serif;
  --f-body: 'Barlow', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --r: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0F1316;
    --surface: #1A2025;
    --surface-2: #151A1E;
    --ink: #ECEFF1;
    --muted: #94A1AB;
    --line: #2C363D;
    --accent: #7DB2E6;
    --accent-ink: #0B1A28;
    --in: #35C9A5;
    --in-ink: #05261E;
    --in-bg: #12342B;
    --out: #FF9559;
    --out-ink: #2D1304;
    --out-bg: #3A2214;
    --warn: #F0B64A;
    --warn-bg: #3A2D10;
    --danger: #FF8179;
    --danger-bg: #3E1B19;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.45;
  -webkit-tap-highlight-color: transparent;
}
h1, h2, h3 { font-family: var(--f-display); font-weight: 700; line-height: 1.05; margin: 0; text-wrap: balance; }
p { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.muted { color: var(--muted); }
.mono { font-variant-numeric: tabular-nums; }

/* Botones */
.btn {
  appearance: none; border: 1px solid var(--line); background: var(--surface);
  color: var(--ink); border-radius: var(--r); padding: 10px 16px; min-height: 44px;
  font-weight: 600; cursor: pointer; box-shadow: 0 2px 0 var(--line);
}
.btn:active { transform: translateY(1px); box-shadow: 0 1px 0 var(--line); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); box-shadow: 0 2px 0 rgba(0,0,0,.35); }
.btn.danger { color: var(--danger); border-color: var(--danger); }
.btn.small { min-height: 36px; padding: 6px 12px; font-size: 14px; }
.btn.ghost { background: transparent; box-shadow: none; }
.link { appearance: none; border: 0; background: none; color: var(--accent); font-weight: 600; text-decoration: underline; cursor: pointer; padding: 8px; min-height: 44px; }

/* Formularios */
.field { display: grid; gap: 6px; min-width: 0; }
.field > label, .label {
  font-family: var(--f-display); font-weight: 600; font-size: 14px;
  letter-spacing: .08em; text-transform: uppercase; color: var(--muted);
}
.input {
  width: 100%; min-height: 46px; padding: 10px 12px; border-radius: var(--r);
  border: 1px solid var(--line); background: var(--surface); color: var(--ink);
}
.input::placeholder { color: var(--muted); opacity: .8; }
.input.code { font-family: var(--f-display); font-size: 22px; font-weight: 600; letter-spacing: .12em; font-variant-numeric: tabular-nums; }

/* Etiquetas de estado */
.pill {
  display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px;
  font-family: var(--f-display); font-weight: 600; font-size: 15px; letter-spacing: .04em;
  text-transform: uppercase; white-space: nowrap;
}
.pill::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.pill.in { background: var(--in-bg); color: var(--in); }
.pill.out { background: var(--out-bg); color: var(--out); }
.pill.warn { background: var(--warn-bg); color: var(--warn); }
.pill.bad { background: var(--danger-bg); color: var(--danger); }
.pill.idle { background: var(--surface-2); color: var(--muted); border: 1px solid var(--line); }

/* Aviso flotante */
.toast {
  position: fixed; left: 50%; bottom: calc(20px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%);
  max-width: min(92vw, 520px); padding: 12px 16px; border-radius: var(--r);
  background: var(--ink); color: var(--bg); font-weight: 600; z-index: 50; box-shadow: 0 6px 24px rgba(0,0,0,.3);
}
.toast.bad { background: var(--danger); color: #fff; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}