:root {
  --primary: #6366f1;
  --primary-glow: rgba(99, 102, 241, 0.5);
  --secondary: #a855f7;
  --accent: #10b981;
  --danger: #ef4444;
  --bg-dark: #0f172a;
  --bg-card: rgba(30, 41, 59, 0.7);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --font-family: "Segoe UI", Tahoma, "Noto Kufi Arabic", sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-family);
  background: radial-gradient(circle at top, #1e1b4b, #0f172a);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
  direction: rtl;
}

/* Glassmorphism */
.glass {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border-radius: 12px;
  border: none;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: inherit;
  font-size: 1rem;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--primary-glow);
}

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

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

.animate-fade { animation: fadeIn 0.4s ease-out forwards; }
.animate-pulse { animation: pulse 2s infinite ease-in-out; }
.shake { animation: shake 0.2s ease-in-out 0s 2; }

/* HUD / Hub Specific */
.hub-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
}

.hero {
  text-align: center;
  margin-bottom: 60px;
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 16px;
  background: linear-gradient(to right, #fff, var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  color: var(--text-muted);
  font-size: 1.2rem;
}

.game-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.game-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  padding: 30px;
  text-decoration: none;
  color: inherit;
  transition: transform 0.3s ease;
}

.game-card:hover {
  transform: translateY(-10px);
}

.game-card i {
  font-size: 3rem;
  margin-bottom: 20px;
}

.game-card h3 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.game-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 24px;
  flex-grow: 1;
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  width: 90%;
  max-width: 500px;
  padding: 30px;
  transform: scale(0.9);
  transition: all 0.3s ease;
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

/* Utility */
.rtl { direction: rtl; }
.text-center { text-align: center; }
.mt-4 { margin-top: 1rem; }

/* Responsive */
@media (max-width: 768px) {
  .hero h1 { font-size: 2.2rem; }
  .game-grid { grid-template-columns: 1fr; }
}

/* Particles Canvas */
#particles-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}