:root {
  --bg-color: #0f172a;
  --text-color: #f8fafc;
  --card-bg: rgba(255, 255, 255, 0.05);
  --card-border: rgba(255, 255, 255, 0.1);
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --secondary: #8b5cf6;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --3d-shadow: 0 4px 0 0 #1e3a8a, 0 8px 10px rgba(0,0,0,0.3);
}

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

body {
  font-family: 'Outfit', 'Hind Siliguri', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
  background: radial-gradient(circle at top right, #1e1b4b, #0f172a);
}

#app {
  width: 100%;
  max-width: 1200px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
}

h1 {
  font-size: 3rem;
  margin-bottom: 2rem;
  text-align: center;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6, #ec4899);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0px 2px 4px rgba(0,0,0,0.5));
}

.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  width: 100%;
  perspective: 1000px;
  justify-items: center;
}

@media (min-width: 800px) {
  .hub-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    max-width: 1100px;
    margin: 0 auto;
    gap: 2.5rem;
    justify-items: center;
  }
  .game-card {
    grid-column: span 2;
    width: 100%;
    max-width: 320px;
  }
  .game-card:nth-child(4) {
    grid-column: 2 / 4;
  }
  .game-card:nth-child(5) {
    grid-column: 4 / 6;
  }
  .game-container {
    transform: scale(1.4);
    transform-origin: top center;
    margin-bottom: 250px;
  }
}

.game-card {
  width: 100%;
  max-width: 350px;
  margin: 0 auto;
  background: linear-gradient(145deg, rgba(30,41,59,0.85) 0%, rgba(15,23,42,0.95) 100%);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 20px;
  padding: 1rem 0.8rem;
  text-align: center;
  box-shadow: inset 0 2px 10px rgba(255,255,255,0.3), inset 0 -5px 15px rgba(0,0,0,0.5), 0 10px 20px rgba(0,0,0,0.4);
  transform-style: preserve-3d;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.game-card::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(circle at center, rgba(255,255,255,0.15) 0%, transparent 60%);
  pointer-events: none;
  transform: translateZ(0);
}

.game-card:hover {
  transform: translateY(-5px) rotateX(1deg) rotateY(-1deg);
  box-shadow: inset 0 2px 20px rgba(255,255,255,0.5), inset 0 -5px 20px rgba(0,0,0,0.6), 0 25px 45px rgba(0,0,0,0.6), 0 0 30px rgba(59, 130, 246, 0.4);
  border-color: rgba(255, 255, 255, 0.6);
}

.game-image-container {
  width: 120px;
  height: 120px;
  margin: 0 auto 1rem auto;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0,0,0,0.5), inset 0 2px 5px rgba(255,255,255,0.4);
  border: 2px solid rgba(255,255,255,0.2);
  transform: translateZ(20px);
  background: rgba(0,0,0,0.2);
}

.game-thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.game-card:hover .game-thumbnail {
  transform: scale(1.18);
}

.game-card h2 {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #fff;
  transform: translateZ(20px);
}

.game-desc {
  font-size: 0.95rem;
  font-weight: 500;
  color: #cbd5e1;
  margin-bottom: 1.2rem;
  transform: translateZ(10px);
  line-height: 1.5;
  text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

.play-btn {
  background: linear-gradient(135deg, rgba(59,130,246,0.6) 0%, rgba(37,99,235,0.8) 100%);
  color: white;
  border: 1px solid rgba(255,255,255,0.4);
  padding: 0.6rem 1.5rem;
  border-radius: 20px;
  font-size: 1rem;
  font-weight: bold;
  font-family: inherit;
  cursor: pointer;
  box-shadow: inset 0 2px 5px rgba(255,255,255,0.5), inset 0 -3px 5px rgba(0,0,0,0.2), 0 5px 15px rgba(0,0,0,0.3);
  transform: translateZ(25px);
  transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.play-btn:hover {
  background: linear-gradient(135deg, rgba(255,255,255,0.3) 0%, rgba(255,255,255,0.1) 100%);
  box-shadow: inset 0 2px 10px rgba(255,255,255,0.8), inset 0 -3px 5px rgba(0,0,0,0.2), 0 8px 25px rgba(59, 130, 246, 0.6);
  border-color: white;
  transform: translateZ(30px) scale(1.05);
}

.play-btn:active {
  transform: translateZ(15px) scale(0.95);
  box-shadow: inset 0 2px 2px rgba(255,255,255,0.3), inset 0 -1px 2px rgba(0,0,0,0.2), 0 2px 5px rgba(0,0,0,0.3);
}

.score-badge {
  position: absolute;
  top: 15px;
  right: 15px;
  background: rgba(16, 185, 129, 0.2);
  color: var(--success);
  border: 1px solid var(--success);
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: bold;
  transform: translateZ(25px);
}

/* Game View Container */
.game-container {
  display: none;
  width: 100%;
  max-width: 600px;
  background: linear-gradient(145deg, #1e293b, #0f172a);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  padding: 2rem;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
  box-shadow: var(--glass-shadow);
  animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.game-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding-bottom: 1rem;
}

.back-btn {
  background: transparent;
  color: var(--text-color);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.2s;
}

.back-btn:hover {
  background: rgba(255,255,255,0.1);
}

.level-indicator {
  font-weight: bold;
  color: var(--secondary);
  background: rgba(139, 92, 246, 0.2);
  padding: 0.3rem 1rem;
  border-radius: 20px;
}

.game-content {
  min-height: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* Generic game elements */
.input-box {
  background: rgba(0,0,0,0.3);
  border: 2px solid rgba(255,255,255,0.2);
  color: white;
  padding: 1rem;
  border-radius: 12px;
  font-size: 1.2rem;
  text-align: center;
  outline: none;
  font-family: inherit;
  margin-bottom: 1rem;
  transition: border-color 0.2s;
  width: 100%;
  max-width: 300px;
}

.input-box:focus {
  border-color: var(--primary);
}

.hint-text {
  font-size: 1.2rem;
  color: var(--warning);
  margin-bottom: 2rem;
  text-align: center;
}

.action-btn {
  background: var(--secondary);
  color: white;
  border: none;
  padding: 0.8rem 2rem;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 4px 0 0 #5b21b6;
  transition: all 0.1s;
}

.action-btn:active {
  transform: translateY(4px);
  box-shadow: 0 0px 0 0 #5b21b6;
}

canvas {
  background: rgba(0,0,0,0.5);
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: inset 0 0 20px rgba(0,0,0,0.8);
}

@media (max-width: 600px) {
  #app { padding: 1rem; }
  h1 { font-size: 2rem; }
  .hub-grid { grid-template-columns: 1fr; }
  .game-container {
    padding: 1rem;
    transform: scale(0.85);
    transform-origin: top center;
    margin-bottom: -100px;
  }
  .game-header { flex-wrap: wrap; gap: 12px; justify-content: center; }
  .game-header h2 { width: 100%; text-align: center; order: -1; margin-bottom: 5px; font-size: 1.4rem; }
}