*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-deep: #11131b;
  --bg-card: rgba(26, 29, 40, 0.85);
  --border: rgba(255, 255, 255, 0.08);
  --text: #e8e8f0;
  --text-muted: #8888a8;
  --x-color: #d05bff;
  --x-glow: rgba(208, 91, 255, 0.35);
  --o-color: #00dbe9;
  --o-glow: rgba(0, 219, 233, 0.35);
  --accent: #00dbe9;
  --radius: 12px;
}

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: 'Sora', system-ui, sans-serif;
  background: var(--bg-deep);
  background-image:
    radial-gradient(ellipse 70% 50% at 20% 0%, rgba(208, 91, 255, 0.12), transparent),
    radial-gradient(ellipse 60% 50% at 100% 100%, rgba(0, 219, 233, 0.1), transparent);
  color: var(--text);
}

.app {
  display: flex;
  align-items: stretch;
  height: 100vh;
  width: 100vw;
  padding: 12px;
  gap: 12px;
}

.sidebar {
  flex: 0 0 220px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.header {
  text-align: left;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-icon {
  font-size: 1rem;
  color: var(--accent);
  filter: drop-shadow(0 0 8px rgba(0, 219, 233, 0.6));
}

.logo h1 {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #fff 30%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  margin-top: 2px;
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 400;
}

.scoreboard {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 6px;
}

.score-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 4px;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}

.score-card.active {
  transform: translateY(-1px);
}

.score-card.score-x.active {
  border-color: rgba(208, 91, 255, 0.5);
  box-shadow: 0 0 20px var(--x-glow);
}

.score-card.score-o.active {
  border-color: rgba(0, 219, 233, 0.5);
  box-shadow: 0 0 20px var(--o-glow);
}

.score-label {
  display: block;
  font-size: 0.55rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.score-x .score-label { color: var(--x-color); }
.score-o .score-label { color: var(--o-color); }

.score-value {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1;
}

.score-x .score-value { color: var(--x-color); }
.score-o .score-value { color: var(--o-color); }

.status-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 8px 14px;
  font-size: 0.75rem;
  backdrop-filter: blur(12px);
  transition: border-color 0.3s;
}

.status-bar.winner-x {
  border-color: rgba(208, 91, 255, 0.4);
}

.status-bar.winner-o {
  border-color: rgba(0, 219, 233, 0.4);
}

.turn-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  animation: pulse 1.5s ease-in-out infinite;
}

.turn-indicator.turn-x {
  background: var(--x-color);
  box-shadow: 0 0 10px var(--x-glow);
}

.turn-indicator.turn-o {
  background: var(--o-color);
  box-shadow: 0 0 10px var(--o-glow);
}

.turn-indicator.hidden {
  display: none;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.status-bar strong {
  font-weight: 600;
}

.game-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 8px;
  backdrop-filter: blur(16px);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  min-width: 0;
}

#game-container {
  border-radius: 12px;
  overflow: hidden;
  line-height: 0;
}

#game-container canvas {
  display: block;
  border-radius: 12px;
  max-width: 100%;
  max-height: calc(100vh - 40px);
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: auto;
}

.btn {
  font-family: inherit;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 8px 12px;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #0099a8);
  color: #11131b;
  box-shadow: 0 4px 16px rgba(0, 219, 233, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(0, 219, 233, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

@media (max-width: 520px) {
  .app {
    flex-direction: column;
    padding: 8px;
    gap: 8px;
  }

  .sidebar {
    flex: 0 0 auto;
  }

  .controls {
    flex-direction: row;
  }

  .btn {
    flex: 1;
  }
}

/* ── Móvil: mantener panel de controles y tablero visible ── */
html.goian-mobile body.game-neon-tactics .app.mobile-shell,
body.game-neon-tactics.is-mobile .app.mobile-shell {
  padding: 0.35rem 0.5rem 0.5rem !important;
  gap: 0.35rem !important;
  overflow-y: auto !important;
  overflow-x: hidden !important;
}

html.goian-mobile body.game-neon-tactics .sidebar,
body.game-neon-tactics.is-mobile .sidebar {
  display: flex !important;
  flex: 0 0 auto !important;
  flex-direction: column !important;
  width: 100% !important;
  gap: 0.4rem !important;
}

html.goian-mobile body.game-neon-tactics .sidebar .header,
body.game-neon-tactics.is-mobile .sidebar .header {
  display: none !important;
}

html.goian-mobile body.game-neon-tactics .mobile-hud,
body.game-neon-tactics.is-mobile .mobile-hud {
  display: grid !important;
  grid-template-columns: 1fr 1fr 1fr !important;
  gap: 0.35rem !important;
  padding: 0.25rem 0 !important;
}

html.goian-mobile body.game-neon-tactics .scoreboard,
body.game-neon-tactics.is-mobile .scoreboard {
  display: none !important;
}

html.goian-mobile body.game-neon-tactics .game-wrapper,
body.game-neon-tactics.is-mobile .game-wrapper {
  flex: 1 1 auto !important;
  min-height: 200px !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  padding: 0.35rem !important;
}

html.goian-mobile body.game-neon-tactics #game-container,
body.game-neon-tactics.is-mobile #game-container {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
}

html.goian-mobile body.game-neon-tactics #game-container canvas,
body.game-neon-tactics.is-mobile #game-container canvas {
  max-width: min(100%, 300px) !important;
  max-height: min(52dvh, 300px) !important;
  width: auto !important;
  height: auto !important;
}

html.goian-mobile body.game-neon-tactics .status-bar,
body.game-neon-tactics.is-mobile .status-bar {
  font-size: 0.7rem !important;
  padding: 0.45rem 0.75rem !important;
}

html.goian-mobile body.game-neon-tactics .controls,
body.game-neon-tactics.is-mobile .controls {
  display: flex !important;
  flex-direction: row !important;
  gap: 0.4rem !important;
  margin-top: 0 !important;
}

html.goian-mobile body.game-neon-tactics .controls .btn,
body.game-neon-tactics.is-mobile .controls .btn {
  flex: 1 !important;
  min-height: 40px !important;
}