/* ─── Variables ────────────────────────────────────────────────────────────── */
:root {
  --bg: #0a0a0f;
  --bg-card: #0d0d1a;
  --bg-panel: #080810;
  --text: #c8c8f0;
  --text-dim: #505080;
  --neon-cyan: #00f5ff;
  --neon-magenta: #ff00ff;
  --neon-green: #00ff41;
  --neon-amber: #ffb800;
  --neon-red: #ff0040;
  --neon-white: #ffffff;
  --border-dim: #1e1e3a;
  --radius: 8px;
}

/* ─── Reset & Base ─────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Share Tech Mono', monospace;
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Scanline CRT overlay */
body::after {
  content: '';
  pointer-events: none;
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.08) 2px,
    rgba(0, 0, 0, 0.08) 4px
  );
  z-index: 999;
}

.hidden { display: none !important; }

/* ─── Hub screen ───────────────────────────────────────────────────────────── */
#hub-screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 2rem 1rem 4rem;
}

/* ─── Header ───────────────────────────────────────────────────────────────── */
.hub-header {
  text-align: center;
  margin-bottom: 3rem;
}

.hub-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 900;
  letter-spacing: 0.15em;
  color: #fff;
  text-shadow:
    0 0 10px var(--neon-cyan),
    0 0 30px var(--neon-cyan),
    0 0 60px var(--neon-cyan),
    0 0 100px var(--neon-cyan);
  animation: titlePulse 3s ease-in-out infinite;
}

.hub-subtitle {
  color: var(--text-dim);
  letter-spacing: 0.3em;
  font-size: 0.8rem;
  margin-top: 0.5rem;
  text-transform: uppercase;
}

@keyframes titlePulse {
  0%, 100% { text-shadow: 0 0 10px var(--neon-cyan), 0 0 30px var(--neon-cyan), 0 0 60px var(--neon-cyan); }
  50%       { text-shadow: 0 0 20px var(--neon-cyan), 0 0 50px var(--neon-cyan), 0 0 100px var(--neon-cyan), 0 0 150px rgba(0,245,255,0.4); }
}

/* ─── Game Cards Grid ──────────────────────────────────────────────────────── */
.game-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  width: 100%;
  max-width: 900px;
  margin-bottom: 3rem;
}

@media (max-width: 600px) {
  .game-cards-grid { grid-template-columns: 1fr; }
}

/* ─── Game Card ────────────────────────────────────────────────────────────── */
.game-card {
  background: var(--bg-card);
  border: 2px solid var(--neon-color, var(--neon-cyan));
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  cursor: default;
  transition: box-shadow 0.3s ease, transform 0.2s ease;
  box-shadow: 0 0 12px rgba(0,0,0,0.5), inset 0 0 20px rgba(0,0,0,0.3);
  position: relative;
  overflow: hidden;
}

.game-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  box-shadow: 0 0 15px var(--neon-color, var(--neon-cyan));
  opacity: 0.4;
  transition: opacity 0.3s;
}

.game-card:hover::before { opacity: 0.9; }
.game-card:hover { transform: translateY(-3px); }

[data-game="tictactoe"] { --neon-color: #00f5ff; }
[data-game="rps"]        { --neon-color: #ff00ff; }
[data-game="snake"]      { --neon-color: #00ff41; }
[data-game="memory"]     { --neon-color: #ffb800; }

.card-icon {
  font-size: 3rem;
  line-height: 1;
  filter: drop-shadow(0 0 8px var(--neon-color, #fff));
}

.card-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(0.8rem, 2vw, 1rem);
  font-weight: 700;
  color: var(--neon-color, var(--neon-cyan));
  text-align: center;
  letter-spacing: 0.1em;
  text-shadow: 0 0 8px var(--neon-color, var(--neon-cyan));
}

.card-desc {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-align: center;
}

.card-buttons {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.5rem;
  width: 100%;
  justify-content: center;
}

.card-btn {
  flex: 1;
  padding: 0.6rem 0.5rem;
  background: transparent;
  border: 1px solid var(--neon-color, var(--neon-cyan));
  color: var(--neon-color, var(--neon-cyan));
  font-family: 'Orbitron', sans-serif;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  text-transform: uppercase;
}

.card-btn:hover {
  background: var(--neon-color, var(--neon-cyan));
  color: #000;
  box-shadow: 0 0 15px var(--neon-color, var(--neon-cyan));
}

/* ─── Leaderboard ──────────────────────────────────────────────────────────── */
.leaderboard-section {
  width: 100%;
  max-width: 900px;
}

.lb-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 1rem;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  text-align: center;
  margin-bottom: 1rem;
}

.lb-tabs {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.lb-tab {
  padding: 0.4rem 1rem;
  background: transparent;
  border: 1px solid var(--border-dim);
  color: var(--text-dim);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.lb-tab.active,
.lb-tab:hover {
  border-color: var(--neon-cyan);
  color: var(--neon-cyan);
  box-shadow: 0 0 8px var(--neon-cyan);
}

.lb-tab[data-game="rps"].active,
.lb-tab[data-game="rps"]:hover    { border-color: var(--neon-magenta); color: var(--neon-magenta); box-shadow: 0 0 8px var(--neon-magenta); }
.lb-tab[data-game="snake"].active,
.lb-tab[data-game="snake"]:hover  { border-color: var(--neon-green); color: var(--neon-green); box-shadow: 0 0 8px var(--neon-green); }
.lb-tab[data-game="memory"].active,
.lb-tab[data-game="memory"]:hover { border-color: var(--neon-amber); color: var(--neon-amber); box-shadow: 0 0 8px var(--neon-amber); }

.lb-content {
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: var(--radius);
  padding: 1rem;
  min-height: 80px;
}

.lb-empty {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  padding: 1rem;
}

.lb-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

.lb-table th {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  padding: 0.4rem 0.6rem;
  text-align: left;
  border-bottom: 1px solid var(--border-dim);
}

.lb-table td {
  padding: 0.5rem 0.6rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.lb-table tr:last-child td { border-bottom: none; }

.lb-name { color: var(--text); }
.lb-score { color: var(--neon-amber); font-weight: bold; text-align: right; }
.lb-date { color: var(--text-dim); font-size: 0.7rem; text-align: right; }

/* ─── Game Screen ──────────────────────────────────────────────────────────── */
#game-screen {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 100;
  display: flex;
  flex-direction: column;
  transform: translateY(100%);
  transition: transform 0.3s ease-in-out;
}

#game-screen.active {
  transform: translateY(0);
}

.game-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  border-bottom: 1px solid var(--border-dim);
  background: rgba(0,0,0,0.4);
  flex-shrink: 0;
}

.back-btn {
  padding: 0.5rem 1rem;
  background: transparent;
  border: 1px solid var(--text-dim);
  color: var(--text-dim);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s;
}

.back-btn:hover {
  border-color: var(--neon-red);
  color: var(--neon-red);
  box-shadow: 0 0 10px var(--neon-red);
}

.game-title-bar {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(0.7rem, 2.5vw, 1.1rem);
  font-weight: 700;
  letter-spacing: 0.15em;
  color: #fff;
}

.game-status-bar {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-align: right;
  min-width: 80px;
}

.game-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: 1rem;
  position: relative;
}

/* ─── Modal ────────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 1rem;
}

.modal-box {
  background: var(--bg-card);
  border: 1px solid #333;
  border-radius: 12px;
  padding: 2rem;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 0 40px rgba(0,0,0,0.8);
}

.modal-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 1rem;
  letter-spacing: 0.2em;
  color: var(--text);
  text-align: center;
  margin-bottom: 1.5rem;
}

.modal-content { display: flex; flex-direction: column; gap: 0.75rem; }

.modal-options {
  display: flex;
  gap: 1rem;
}

.modal-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  padding: 1.2rem 0.5rem;
  background: var(--bg-panel);
  border: 1px solid #333;
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s;
}

.modal-btn:hover {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 15px var(--neon-cyan);
}

.modal-btn-icon { font-size: 2rem; }
.modal-btn-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--neon-cyan);
}
.modal-btn-sub { font-size: 0.65rem; color: var(--text-dim); }

.modal-btn-primary {
  width: 100%;
  padding: 0.8rem;
  background: transparent;
  border: 1px solid var(--neon-cyan);
  color: var(--neon-cyan);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 0.5rem;
}

.modal-btn-primary:hover {
  background: var(--neon-cyan);
  color: #000;
  box-shadow: 0 0 20px var(--neon-cyan);
}

.modal-btn-secondary {
  width: 100%;
  padding: 0.7rem;
  background: transparent;
  border: 1px solid #444;
  color: var(--text-dim);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.modal-btn-secondary:hover { border-color: #888; color: #ccc; }

.modal-btn-danger {
  width: 100%;
  padding: 0.7rem;
  background: transparent;
  border: 1px solid var(--neon-red);
  color: var(--neon-red);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.modal-btn-danger:hover {
  background: var(--neon-red);
  color: #000;
  box-shadow: 0 0 15px var(--neon-red);
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.name-input,
.room-code-input {
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--bg-panel);
  border: 1px solid #444;
  border-radius: 6px;
  color: var(--text);
  font-family: 'Orbitron', sans-serif;
  font-size: 1.1rem;
  letter-spacing: 0.15em;
  text-align: center;
  text-transform: uppercase;
  outline: none;
  transition: border-color 0.2s;
}

.name-input:focus,
.room-code-input:focus {
  border-color: var(--neon-cyan);
  box-shadow: 0 0 10px rgba(0,245,255,0.3);
}

.modal-error {
  color: var(--neon-red);
  font-size: 0.75rem;
  text-align: center;
  min-height: 1.2em;
}

.modal-error-text {
  color: var(--neon-red);
  text-align: center;
  font-size: 0.9rem;
}

/* Waiting screen in modal */
.waiting-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
}

.room-code-label {
  font-size: 0.65rem;
  letter-spacing: 0.3em;
  color: var(--text-dim);
}

.room-code-value {
  font-family: 'Orbitron', sans-serif;
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: 0.3em;
  color: var(--neon-cyan);
  text-shadow: 0 0 20px var(--neon-cyan);
}

.waiting-dots-anim {
  display: flex;
  gap: 0.4rem;
  font-size: 1.5rem;
  color: var(--text-dim);
}

.waiting-dots-anim span:nth-child(1) { animation: dotBounce 1.2s ease-in-out 0s infinite; }
.waiting-dots-anim span:nth-child(2) { animation: dotBounce 1.2s ease-in-out 0.4s infinite; }
.waiting-dots-anim span:nth-child(3) { animation: dotBounce 1.2s ease-in-out 0.8s infinite; }

@keyframes dotBounce {
  0%, 100% { transform: translateY(0); opacity: 0.4; }
  50% { transform: translateY(-8px); opacity: 1; }
}

.waiting-hint {
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}

.confirm-text {
  text-align: center;
  margin-bottom: 1rem;
  color: var(--text);
}

.confirm-buttons {
  display: flex;
  gap: 0.75rem;
}

/* ─── Utility ──────────────────────────────────────────────────────────────── */
button { cursor: pointer; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #333; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #555; }