:root {
  /* Color Palette */
  --primary-color: #4F46E5;
  --primary-dark: #4338CA;
  --primary-light: #818CF8;
  --secondary-color: #06B6D4;
  --success-color: #10B981;
  --danger-color: #EF4444;
  --warning-color: #F59E0B;
  --dark-bg: #1E293B;
  --dark-card: #334155;
  --light-bg: #F8FAFC;
  --light-card: #FFFFFF;
  --text-primary: #0F172A;
  --text-secondary: #64748B;
  --border-color: #E2E8F0;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--light-bg);
  min-height: 100vh;
  font-size: 16px;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 2.5rem;
}

h2 {
  font-size: 2rem;
}

h3 {
  font-size: 1.75rem;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

/* Custom Container */
main.container {
  background-color: var(--light-card);
  padding: var(--spacing-2xl);
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.95);
}

/* Glassmorphism Card */
.glass-card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: var(--shadow-xl);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.glass-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
}

/* Card Styles */
.card {
  border: none;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.card-header {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  font-weight: 600;
  border-bottom: none;
  padding: var(--spacing-lg);
}

.card-body {
  padding: var(--spacing-lg);
}

/* Button Styles */
.btn {
  font-weight: 600;
  padding: 0.625rem 1.5rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  box-shadow: var(--shadow-sm);
}

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

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

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
  color: white;
  border: none;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-dark), #3730A3);
  color: white;
  filter: brightness(1.1);
}

.btn-success {
  background: linear-gradient(135deg, var(--success-color), #059669);
  color: white;
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger-color), #DC2626);
  color: white;
}

.btn-outline-secondary,
.btn-outline-danger,
.btn-outline-light {
  transition: all var(--transition-base);
}

.btn-outline-secondary:hover,
.btn-outline-danger:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* Form Styles */
.form-control,
.form-select {
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  transition: all var(--transition-base);
  font-size: 0.95rem;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
  outline: none;
}

.form-label {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

/* Navbar Styles */
.navbar {
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(10px);
  background-color: rgba(30, 41, 59, 0.95) !important;
  position: relative;
  z-index: 1040;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}

.nav-link {
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--primary-light) !important;
}

.navbar .dropdown {
  position: static;
}

.dropdown-menu {
  z-index: 1060 !important;
  border: none;
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  overflow: hidden;
  position: absolute !important;
}

.dropdown-item {
  transition: background-color var(--transition-fast);
}

.dropdown-item:hover {
  background-color: rgba(79, 70, 229, 0.1);
}


/* Alert Styles */
.alert {
  border: none;
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  font-weight: 500;
  box-shadow: var(--shadow-sm);
}

.alert-success {
  background: linear-gradient(135deg, #D1FAE5, #A7F3D0);
  color: #065F46;
}

.alert-danger {
  background: linear-gradient(135deg, #FEE2E2, #FECACA);
  color: #991B1B;
}

.alert-info {
  background: linear-gradient(135deg, #DBEAFE, #BFDBFE);
  color: #1E40AF;
}

/* Parking Spot Styles */
.spot-btn {
  width: 45px;
  height: 45px;
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.spot-btn:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

.spots-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(45px, 1fr));
  gap: var(--spacing-sm);
  max-width: 100%;
  padding: var(--spacing-md);
}

/* Hero Section */
.hero-section {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  padding: var(--spacing-2xl);
  border-radius: var(--radius-xl);
  margin-bottom: var(--spacing-xl);
  box-shadow: var(--shadow-xl);
}

.hero-section h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

/* Stats Card */
.stats-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  color: white;
  transition: all var(--transition-base);
}

.stats-card:hover {
  transform: translateY(-4px);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.08));
}

/* Badge Styles */
.badge {
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.85rem;
}

/* Loading Spinner */
.spinner-border {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

/* Utility Classes */
.shadow-elegant {
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1), 0 2px 8px rgba(0, 0, 0, 0.06);
}

.gradient-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
}

.gradient-success {
  background: linear-gradient(135deg, var(--success-color), #059669);
}

/* Responsive Design */
@media (max-width: 768px) {
  main.container {
    padding: var(--spacing-lg);
    margin-top: var(--spacing-md);
  }

  .hero-section h1 {
    font-size: 2rem;
  }

  .spots-container {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (max-width: 576px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.75rem;
  }

  h3 {
    font-size: 1.5rem;
  }

  .btn {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
  }
}

/* Animation Classes */
.fade-in {
  animation: fadeIn var(--transition-slow);
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.slide-in {
  animation: slideIn var(--transition-base);
}

@keyframes slideIn {
  from {
    transform: translateX(-100%);
  }

  to {
    transform: translateX(0);
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--primary-color);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-dark);
}