:root {
  /* Cores Principais */
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-tertiary: #1a1a24;
  --bg-card: #13131a;
  --bg-hover: #1f1f2a;
  
  /* Cores Neon */
  --neon-blue: #00d4ff;
  --neon-green: #00ff88;
  --neon-purple: #b829dd;
  --neon-pink: #ff006e;
  --neon-red: #ff0040;
  --neon-yellow: #ffd700;
  
  /* Gradientes */
  --gradient-primary: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
  --gradient-vip: linear-gradient(135deg, var(--neon-yellow), #ff8800);
  --gradient-danger: linear-gradient(135deg, var(--neon-red), var(--neon-pink));
  
  /* Texto */
  --text-primary: #ffffff;
  --text-secondary: #a0a0b0;
  --text-muted: #6b6b7a;
  
  /* Bordas */
  --border-color: #2a2a35;
  --border-radius: 12px;
  --border-radius-lg: 20px;
  --border-radius-sm: 8px;
  
  /* Espaçamento */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 0.75rem;
  --space-lg: 1rem;
  --space-xl: 1.5rem;
  --space-2xl: 2rem;
  --space-3xl: 3rem;
  
  /* Sombras */
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.3);
  
  /* Transições */
  --transition-fast: all 0.2s ease;
  --transition-normal: all 0.3s ease;
  --transition-slow: all 0.5s ease;
  
  /* Fontes */
  --font-mono: 'Courier New', monospace;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
  background: var(--neon-blue);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--neon-purple);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* Flex utilities */
.flex {
  display: flex;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.grid {
  display: grid;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(10, 10, 15, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-md) 0;
  z-index: 1000;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
}

.navbar-brand i {
  font-size: 1.5rem;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.navbar-nav {
  display: flex;
  gap: var(--space-xl);
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-fast);
  padding: var(--space-sm) 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--neon-blue);
}

.nav-user {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.user-currency {
  display: flex;
  gap: var(--space-md);
}

.currency-badge {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-size: 0.875rem;
}

.currency-badge.coins {
  background: rgba(0, 212, 255, 0.1);
  color: var(--neon-blue);
}

.currency-badge.gems {
  background: rgba(184, 41, 221, 0.1);
  color: var(--neon-purple);
}

.user-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-weight: 700;
  transition: var(--transition-fast);
}

.user-avatar:hover {
  transform: scale(1.05);
}

.btn-logout {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.25rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-logout:hover {
  color: var(--neon-red);
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Sidebar */
.sidebar {
  position: fixed;
  left: 0;
  top: 70px;
  width: 280px;
  height: calc(100vh - 70px);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border-color);
  padding: var(--space-xl);
  overflow-y: auto;
  transition: var(--transition-normal);
  z-index: 900;
}

.sidebar-menu {
  list-style: none;
  margin-bottom: var(--space-xl);
}

.sidebar-item {
  margin-bottom: var(--space-sm);
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--border-radius);
  transition: var(--transition-fast);
}

.sidebar-link:hover,
.sidebar-link.active {
  background: var(--bg-hover);
  color: var(--neon-blue);
}

.sidebar-link i {
  width: 20px;
}

.sidebar-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
  padding-left: var(--space-lg);
}

.sidebar-section {
  margin-bottom: var(--space-xl);
}

/* Main Content */
.main-content {
  margin-left: 280px;
  margin-top: 70px;
  padding: var(--space-xl);
  min-height: calc(100vh - 70px);
}

/* Buttons */
.btn {
  padding: var(--space-md) var(--space-xl);
  border: none;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--bg-primary);
}

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

.btn-danger {
  background: var(--gradient-danger);
  color: white;
}

.btn-warning {
  background: var(--gradient-vip);
  color: var(--bg-primary);
}

.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  max-width: 500px;
  width: 90%;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
}

.modal-header {
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--border-color);
}

.modal-body {
  padding: var(--space-xl);
}

.modal-footer {
  padding: var(--space-lg) var(--space-xl);
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: var(--space-md);
  justify-content: flex-end;
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.toast {
  background: var(--bg-card);
  border-left: 4px solid var(--neon-blue);
  border-radius: var(--border-radius-sm);
  padding: var(--space-md) var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  box-shadow: var(--shadow-card);
  animation: slideIn 0.3s ease;
}

.toast.success {
  border-left-color: var(--neon-green);
}

.toast.error {
  border-left-color: var(--neon-red);
}

.toast.warning {
  border-left-color: var(--neon-yellow);
}

.toast-icon {
  font-size: 1.25rem;
}

.toast.success .toast-icon { color: var(--neon-green); }
.toast.error .toast-icon { color: var(--neon-red); }
.toast.warning .toast-icon { color: var(--neon-yellow); }

.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
}

/* Animations */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* Responsive */
@media (max-width: 768px) {
  .navbar-nav {
    display: none;
  }
  
  .navbar-toggle {
    display: block;
  }
  
  .sidebar {
    transform: translateX(-100%);
  }
  
  .sidebar.open {
    transform: translateX(0);
  }
  
  .main-content {
    margin-left: 0;
    padding: var(--space-lg);
  }
  
  .grid {
    grid-template-columns: 1fr !important;
  }
}