/* Games Page Styles */
.games-hub { position: relative; z-index: 1; }
.games-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding-bottom: 80px;
}

.game-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.game-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top center, color-mix(in srgb, var(--gc-color, #a78bfa) 8%, transparent), transparent 60%);
  opacity: 0;
  transition: var(--transition);
}
.game-card:hover {
  transform: translateY(-6px);
  border-color: rgba(167,139,250,0.3);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 40px rgba(167,139,250,0.1);
}
.game-card:hover::before { opacity: 1; }

.featured-game {
  background: linear-gradient(135deg, rgba(244,114,182,0.08), rgba(167,139,250,0.06));
  border-color: rgba(244,114,182,0.25);
}
.gc-badge-top {
  position: absolute;
  top: 20px;
  right: 20px;
  padding: 4px 12px;
  background: var(--gradient-hot);
  color: white;
  font-size: 0.72rem;
  font-weight: 700;
  border-radius: 100px;
}

.gc-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
}
.gc-icon {
  font-size: 3rem;
  filter: drop-shadow(0 4px 12px color-mix(in srgb, var(--gc-color) 50%, transparent));
}
.gc-badges { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.gc-diff {
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.gc-diff.beginner { background: rgba(52,211,153,0.15); color: var(--green); }
.gc-diff.intermediate { background: rgba(167,139,250,0.15); color: var(--purple); }
.gc-diff.advanced { background: rgba(251,146,60,0.15); color: var(--orange); }
.gc-xp {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--yellow);
  background: rgba(251,191,36,0.1);
  padding: 3px 10px;
  border-radius: 100px;
  border: 1px solid rgba(251,191,36,0.2);
}

.game-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 10px; }
.game-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 16px; }

.gc-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px; }
.gc-tags span {
  padding: 3px 10px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.73rem;
  color: var(--text-muted);
}

.gc-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.gc-plays { font-size: 0.82rem; color: var(--text-muted); }
.gc-btn {
  padding: 8px 18px;
  background: rgba(167,139,250,0.1);
  border: 1px solid rgba(167,139,250,0.25);
  color: var(--purple);
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  font-family: var(--font-main);
}
.gc-btn:hover {
  background: var(--gradient-main);
  color: white;
  border-color: transparent;
}

/* ============================================
   GAME MODAL
   ============================================ */
.game-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(12px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}
.game-modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 900px;
  max-height: 90vh;
  overflow-y: auto;
  animation: bounceIn 0.3s ease;
  box-shadow: 0 32px 80px rgba(0,0,0,0.6), 0 0 60px rgba(167,139,250,0.1);
}
.gm-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 28px;
  border-bottom: 1px solid var(--border);
}
.gm-header h2 { font-size: 1.4rem; font-weight: 700; }
.gm-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  font-family: var(--font-main);
}
.gm-close:hover { background: rgba(248,113,113,0.15); color: #f87171; border-color: rgba(248,113,113,0.3); }
.gm-body { padding: 28px; }

/* ============================================
   GAME UIs
   ============================================ */
/* Gradient Descent Game */
.gd-game { display: flex; flex-direction: column; gap: 20px; }
.gd-canvas-wrap {
  position: relative;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.gd-canvas-wrap canvas { display: block; width: 100%; }
.gd-controls {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}
.gd-ctrl {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.gd-ctrl label { font-size: 0.82rem; color: var(--text-secondary); font-weight: 600; }
.gd-ctrl input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 6px;
  background: rgba(255,255,255,0.06);
  outline: none;
}
.gd-ctrl input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--gradient-main);
  cursor: pointer;
}
.gd-stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.gd-stat {
  padding: 12px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-align: center;
  flex: 1;
}
.gd-stat-val { font-size: 1.4rem; font-weight: 800; font-family: var(--font-code); background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.gd-stat-label { font-size: 0.75rem; color: var(--text-muted); }
.gd-btns { display: flex; gap: 12px; }
.gd-btn {
  padding: 10px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 700;
  font-family: var(--font-main);
  transition: var(--transition);
}
.gd-btn-main { background: var(--gradient-main); color: white; }
.gd-btn-reset { background: rgba(255,255,255,0.06); border: 1px solid var(--border); color: var(--text-secondary); }

/* Data Sorter Game */
.ds-game { display: flex; flex-direction: column; gap: 20px; }
.ds-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.ds-score-wrap { display: flex; gap: 16px; }
.ds-score {
  padding: 10px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-align: center;
  min-width: 100px;
}
.ds-score-val { font-size: 1.5rem; font-weight: 800; display: block; }
.ds-score-label { font-size: 0.72rem; color: var(--text-muted); }
.ds-timer-bar {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 6px;
  overflow: hidden;
}
.ds-timer-fill {
  height: 100%;
  background: var(--gradient-main);
  transition: width 1s linear;
  border-radius: 6px;
}
.ds-arena {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 20px;
  align-items: start;
  min-height: 300px;
}
.ds-queue {
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ds-queue h4 { font-size: 0.85rem; font-weight: 700; color: var(--text-muted); margin-bottom: 8px; }
.ds-item {
  padding: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: grab;
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
  user-select: none;
  text-align: center;
}
.ds-item:hover { border-color: var(--purple); background: rgba(167,139,250,0.1); transform: scale(1.02); }
.ds-item:active { cursor: grabbing; transform: scale(0.98); }

.ds-center-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--text-muted);
  padding-top: 60px;
}
.ds-buckets {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.ds-bucket {
  min-height: 80px;
  padding: 12px 16px;
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  text-align: center;
}
.ds-bucket.drag-over { border-color: var(--purple); background: rgba(167,139,250,0.05); }
.ds-bucket h4 { font-size: 0.85rem; font-weight: 700; margin-bottom: 8px; }

/* Neuron Builder Game */
.nb-game { display: flex; flex-direction: column; gap: 16px; }
.nb-canvas-wrap {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.nb-canvas-wrap canvas { display: block; width: 100%; height: 350px; }
.nb-controls { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.nb-ctrl-group {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 16px;
}
.nb-ctrl-group label { font-size: 0.82rem; color: var(--text-secondary); font-weight: 600; white-space: nowrap; }
.nb-ctrl-group input[type=number] {
  width: 50px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: var(--font-code);
  font-size: 0.9rem;
  padding: 4px 8px;
  text-align: center;
  outline: none;
}
.nb-output {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.nb-out-card {
  flex: 1;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-align: center;
}
.nb-out-val { font-size: 1.8rem; font-weight: 800; font-family: var(--font-code); color: var(--purple); }
.nb-out-label { font-size: 0.75rem; color: var(--text-muted); }

/* K-Means Game */
.km-game { display: flex; flex-direction: column; gap: 16px; }
.km-canvas-wrap {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: crosshair;
}
.km-canvas-wrap canvas { display: block; }
.km-legend { display: flex; gap: 16px; flex-wrap: wrap; }
.km-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.km-dot { width: 12px; height: 12px; border-radius: 50%; }

@media (max-width: 768px) {
  .games-grid { grid-template-columns: 1fr; }
  .gd-controls { grid-template-columns: 1fr; }
  .ds-arena { grid-template-columns: 1fr; }
  .ds-center-arrow { display: none; }
}