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

:root {
  --primary: #6366f1;
  --secondary: #8b5cf6;
  --bg-dark: #0f0f23;
  --bg-light: #1a1a2e;
  --card-bg: #16213e;
  --text-main: #fff;
  --text-muted: #a8b2d1;
  --border: #2d3748;
  --success: #10b981;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, var(--bg-dark), var(--bg-light));
  color: var(--text-main);
  height: 100vh;
  overflow: hidden;
}

.background-overlay {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.header {
  background: rgba(22, 33, 62, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  z-index: 10;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1800px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo-icon {
  font-size: 2rem;
  filter: drop-shadow(0 0 10px rgba(99, 102, 241, 0.5));
}

.header-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.game-count {
  background: rgba(99, 102, 241, 0.2);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
  border: 1px solid rgba(99, 102, 241, 0.3);
}

.main-container {
  display: flex;
  height: calc(100vh - 80px);
  position: relative;
  z-index: 1;
}

.sidebar {
  width: 380px;
  background: rgba(22, 33, 62, 0.6);
  backdrop-filter: blur(10px);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.sidebar-header h2 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--text-main);
}

.search-box {
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-main);
  font-size: 0.95rem;
  transition: all 0.3s ease;
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.game-grid {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  align-content: start;
}

.game-card {
  min-height: 80px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 12px;
  padding: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
}


.game-grid::-webkit-scrollbar {
  width: 8px;
}

.game-grid::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.2);
}

.game-grid::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 4px;
}

.game-card {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 12px;
  padding: 1.25rem;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.game-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.5s ease;
}

.game-card:hover::before {
  left: 100%;
}

.game-card:hover {
  transform: translateY(-3px);
  border-color: var(--primary);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
}

.game-card.active {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.3), rgba(139, 92, 246, 0.3));
  border-color: var(--primary);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.game-card.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.game-card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.game-icon {
  width: 50px;
  height: 50px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.game-info {
  flex: 1;
  min-width: 0;
}

.game-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.25rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.game-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.game-display {
  flex: 1;
  position: relative;
  background: var(--bg-dark);
}

.welcome-screen {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(15, 15, 35, 0.95), rgba(26, 26, 46, 0.95));
  z-index: 2;
  transition: opacity 0.3s ease;
}

.welcome-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

.welcome-content {
  text-align: center;
  animation: fadeInUp 0.6s ease;
}

.welcome-icon {
  font-size: 5rem;
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.5));
}

.welcome-content h2 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.welcome-content p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.game-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  background: #000;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.game-frame.visible {
  opacity: 1;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1024px) {
  .sidebar {
    width: 300px;
  }

  .game-card {
    padding: 1rem;
  }
}

@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 1rem;
  }

  .sidebar {
    width: 100%;
    max-width: 300px;
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    z-index: 5;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }

  .sidebar.open {
    transform: translateX(0);
  }
}