/*
 * Kompetencia — lobby común de todos los juegos.
 *
 * MISMO archivo en cada juego (futbol, barricade, ppt, uno, golf, arcade):
 * si lo cambias aquí, copialo a los demás. Sin dependencias ni fuentes
 * externas (pesa ~4 KB y no bloquea en conexiones lentas).
 *
 * Estructura (en este orden):
 *   .klb-screen > .klb-card
 *     .klb-eyebrow            "KOMPETENCIA"
 *     .klb-title              nombre del juego
 *     .klb-user               "Conectado como …"
 *     .klb-section            opciones del juego (opcional)
 *       .klb-label + .klb-value
 *       .klb-segmented > .klb-seg[.is-active]
 *       .klb-hint
 *     .klb-btn.klb-primary    "Partida rápida"
 *     .klb-divider            "o"
 *     .klb-btn.klb-secondary  "Crear sala privada"
 *     .klb-join               input.klb-input "CÓDIGO" + .klb-btn.klb-primary "Unirse"
 *     .klb-error
 *     .klb-back               "← Volver a Kompetencia"
 */

:root {
  --klb-bg: #0a0a0a;
  --klb-card: #0d0d0d;
  --klb-border: rgba(255, 255, 255, 0.07);
  --klb-border-soft: rgba(255, 255, 255, 0.05);
  --klb-red: #dc2626;
  --klb-red-hover: #ef4444;
  --klb-text: #ffffff;
  --klb-muted: #94a3b8;
  --klb-subtle: #64748b;
  --klb-faint: #475569;
  --klb-font: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

/* Sin depender del reset de cada juego (Tailwind lo trae, otros no). */
.klb-screen,
.klb-screen *,
.klb-screen *::before,
.klb-screen *::after {
  box-sizing: border-box;
}

.klb-screen {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  overflow-y: auto;
  background:
    radial-gradient(ellipse 80% 45% at 50% 0%, rgba(220, 38, 38, 0.16), transparent 70%),
    var(--klb-bg);
  font-family: var(--klb-font);
  color: var(--klb-text);
  -webkit-tap-highlight-color: transparent;
}

/* `hidden` (Tailwind) también oculta: algunos juegos ya lo usan. */
.klb-screen.klb-hidden,
.klb-hidden,
.klb-screen.hidden,
.klb-card .hidden {
  display: none !important;
}

.klb-card {
  width: 100%;
  max-width: 400px;
  margin: auto;
  padding: 28px 22px 20px;
  border-radius: 18px;
  background: var(--klb-card);
  border: 1px solid var(--klb-border);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.55);
  text-align: center;
}

.klb-eyebrow {
  margin: 0 0 6px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.28em;
  color: var(--klb-red);
  text-transform: uppercase;
}

.klb-title {
  margin: 0;
  font-size: 28px;
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--klb-text);
}

.klb-user {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 8px 0 22px;
  font-size: 12px;
  color: var(--klb-subtle);
}

.klb-user::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #10b981;
}

.klb-user b {
  font-weight: 600;
  color: #cbd5e1;
}

.klb-section {
  margin: 0 0 16px;
  padding-top: 14px;
  border-top: 1px solid var(--klb-border);
  text-align: left;
}

.klb-section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 8px;
}

.klb-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--klb-faint);
}

.klb-value {
  font-size: 12px;
  font-weight: 700;
  color: var(--klb-red-hover);
}

.klb-segmented {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: 6px;
}

.klb-seg {
  min-height: 40px;
  padding: 6px 4px;
  border-radius: 10px;
  border: 1px solid var(--klb-border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--klb-muted);
  font: 700 14px var(--klb-font);
  cursor: pointer;
}

.klb-seg.is-active {
  border-color: rgba(220, 38, 38, 0.55);
  background: rgba(220, 38, 38, 0.12);
  color: var(--klb-red-hover);
}

.klb-hint {
  margin: 8px 0 0;
  font-size: 12px;
  line-height: 1.35;
  color: var(--klb-subtle);
}

.klb-btn {
  display: block;
  width: 100%;
  min-height: 48px;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid transparent;
  font: 600 15px var(--klb-font);
  cursor: pointer;
  transition: background-color 0.15s, transform 0.1s;
}

.klb-btn:active {
  transform: scale(0.98);
}

.klb-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
}

.klb-primary {
  background: var(--klb-red);
  color: #fff;
  box-shadow: 0 8px 22px rgba(220, 38, 38, 0.25);
}

.klb-primary:hover:not(:disabled) {
  background: var(--klb-red-hover);
}

.klb-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--klb-border);
  color: #e2e8f0;
}

.klb-secondary:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.09);
}

.klb-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 12px 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--klb-faint);
}

.klb-divider::before,
.klb-divider::after {
  content: "";
  flex: 1;
  border-top: 1px solid var(--klb-border-soft);
}

.klb-join {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.klb-join .klb-btn {
  width: auto;
  flex: 0 0 auto;
  padding: 12px 18px;
}

.klb-input {
  flex: 1;
  min-width: 0;
  min-height: 48px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--klb-border);
  background: #000;
  color: #fff;
  font: 700 18px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.25em;
  text-align: center;
  text-transform: uppercase;
  outline: none;
}

.klb-input::placeholder {
  color: #334155;
  letter-spacing: 0.2em;
  font-size: 14px;
}

.klb-input:focus {
  border-color: rgba(220, 38, 38, 0.55);
}

.klb-error {
  margin-top: 14px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(127, 29, 29, 0.5);
  background: rgba(69, 10, 10, 0.45);
  color: #f87171;
  font-size: 13px;
}

.klb-back {
  display: inline-block;
  margin-top: 18px;
  font-size: 12px;
  color: var(--klb-subtle);
  text-decoration: none;
}

.klb-back:hover {
  color: #cbd5e1;
}

/* Pantallas de espera (buscando rival / código de sala): mismo card. */
.klb-spinner {
  width: 56px;
  height: 56px;
  margin: 4px auto 18px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--klb-red);
  animation: klb-spin 0.9s linear infinite;
}

@keyframes klb-spin {
  to {
    transform: rotate(360deg);
  }
}

.klb-sub {
  margin: 4px 0 18px;
  font-size: 14px;
  color: var(--klb-subtle);
}

.klb-code {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 16px;
  padding: 14px;
  border-radius: 12px;
  border: 1px solid var(--klb-border-soft);
  background: rgba(0, 0, 0, 0.5);
  font: 800 30px ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0.22em;
}

@media (prefers-reduced-motion: reduce) {
  .klb-spinner {
    animation-duration: 3s;
  }
}