/* Arcadia — estructura inspirada en RetroAdal, paleta de consola Atari:
   negro y grises con rejilla, acentos rojos y una franja roja/naranja/amarilla. */
:root {
  --bg: #0b0b0c;
  --bg-2: #161618;
  --gray-1: #1d1d20;
  --gray-2: #2a2a2e;
  --gray-3: #3b3b40;
  --silver: #a9a9b0;
  --red: #e4202e;
  --red-strong: #ff3341;
  --orange: #f26722;
  --amber: #f5a623;
  --surface: rgba(29, 29, 32, 0.82);
  --surface-hi: rgba(48, 48, 53, 0.92);
  --line: rgba(255, 255, 255, 0.08);
  --text: #f2f2f3;
  --muted: #a7a7ae;
  --dim: #74747c;
  --ok: #5fdc8f;
  --radius: 12px;
  --elev-1: 0 6px 24px #0000008c;
  --elev-2: 0 10px 32px #000000a6;
  --motion-fast: .15s;
  --motion-med: .22s;
  --stripe: linear-gradient(90deg, var(--red) 0 33.3%, var(--orange) 33.3% 66.6%, var(--amber) 66.6%);
  --font: "Segoe UI", -apple-system, BlinkMacSystemFont, system-ui, Inter, Roboto, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
a { color: inherit; }
button { font: inherit; color: inherit; }

/* Fondo: carcasa negra con rejilla horizontal (como las ranuras de la consola) y brillo rojo tenue */
.blobs { position: fixed; inset: 0; z-index: -1; overflow: hidden;
  background:
    radial-gradient(80vmax 50vmax at 85% 110%, rgba(228, 32, 46, .22), transparent 60%),
    repeating-linear-gradient(180deg, rgba(255,255,255,.035) 0 2px, transparent 2px 9px),
    linear-gradient(180deg, #121214, var(--bg)); }
.blobs::after { content: ""; position: absolute; left: 0; right: 0; top: 38%; height: 6px; background: var(--stripe); opacity: .85; }
.blobs.soft::after { display: none; }
.blobs.soft { background:
    radial-gradient(70vmax 40vmax at 100% 0%, rgba(228, 32, 46, .12), transparent 60%),
    repeating-linear-gradient(180deg, rgba(255,255,255,.022) 0 2px, transparent 2px 9px),
    var(--bg); }
.stripe { height: 4px; background: var(--stripe); }

/* Logo propio: disco gris con cruceta roja */
.logo {
  width: 40px; height: 40px; border-radius: 50%; flex: none;
  background: radial-gradient(circle at 35% 30%, var(--gray-3), var(--gray-1) 70%);
  display: grid; place-items: center; box-shadow: 0 0 0 2px var(--red), var(--elev-1);
}
.logo i { width: 16px; height: 16px; position: relative; display: block; }
.logo i::before, .logo i::after { content: ""; position: absolute; width: 6px; height: 6px; border-radius: 50%; background: var(--red); }
.logo i::before { left: 5px; top: 0; box-shadow: 0 10px 0 var(--red); }
.logo i::after { left: 0; top: 5px; box-shadow: 10px 0 0 var(--red); }
.logo.lg { width: 80px; height: 80px; box-shadow: 0 0 0 3px var(--red), var(--elev-2); }
.logo.lg i { transform: scale(2); }

/* Botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 42px; padding: 0 16px; border-radius: 8px; border: 0; cursor: pointer;
  background: var(--surface-hi); color: var(--text); text-decoration: none; font-weight: 700; font-size: 14px;
  transition: transform var(--motion-fast), background var(--motion-fast), opacity var(--motion-fast);
}
.btn:hover { background: var(--gray-3); }
.btn:active { transform: scale(.97); }
.btn.primary { background: var(--red); color: #fff; }
.btn.primary:hover { background: var(--red-strong); }
.btn.ghost { background: transparent; border: 1px solid var(--gray-3); color: var(--silver); }
.btn.ghost:hover { background: var(--gray-2); color: var(--text); }
.btn:disabled { opacity: .45; cursor: default; }
.btn.sm { min-height: 34px; padding: 0 12px; font-size: 13px; border-radius: 6px; }

/* Insignias */
.badge {
  display: inline-flex; align-items: center; gap: 4px; height: 22px; padding: 0 8px; border-radius: 4px;
  font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase;
  background: rgba(0,0,0,.6); color: var(--text); white-space: nowrap;
}
.badge.coop { background: var(--red); color: #fff; }
.badge.versus { background: var(--amber); color: #1a1205; }
.badge.live { background: rgba(0,0,0,.7); color: var(--ok); box-shadow: inset 0 0 0 1px rgba(95,220,143,.5); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 3px rgba(95,220,143,.18); flex: none; }

/* Campos */
.field { display: flex; align-items: center; gap: 10px; border-bottom: 1px solid var(--gray-3); padding: 10px 2px; }
.field svg { width: 16px; height: 16px; opacity: .6; flex: none; }
.field input {
  flex: 1; min-width: 0; background: transparent; border: 0; outline: 0; color: var(--text); font: inherit; font-size: 16px;
}
.field input::placeholder { color: var(--dim); }
.field:focus-within { border-bottom-color: var(--red); }

/* Tarjeta: gris oscuro, translúcida */
.card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--elev-2); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}

.muted { color: var(--muted); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

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