:root {
  --primary: #667eea;
  --secondary: #764ba2;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --dark: #1f2937;
  --light: #f9fafb;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: #f3f4f6;
  color: #333;
  line-height: 1.6;
}

/* Header */
.header {
  background: white;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  display: flex;
  align-items: center;
  font-size: 24px;
  font-weight: bold;
  color: var(--primary);
  text-decoration: none;
}

.logo span {
  margin-left: 10px;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 30px;
}

.nav-menu a {
  color: var(--dark);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s;
}

.nav-menu a:hover {
  color: var(--primary);
}

.nav-actions {
  display: flex;
  gap: 15px;
}

.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-block;
}

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

.btn-primary:hover {
  background: #5a67d8;
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover {
  background: var(--primary);
  color: white;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: white;
  padding: 100px 20px;
  text-align: center;
}

.hero h1 {
  font-size: 48px;
  margin-bottom: 20px;
}

.hero p {
  font-size: 20px;
  margin-bottom: 30px;
  opacity: 0.95;
}

.search-box {
  max-width: 800px;
  margin: 0 auto;
  background: white;
  padding: 20px;
  border-radius: 15px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.2);
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.search-box input, .search-box select {
  flex: 1;
  min-width: 150px;
  padding: 12px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  font-size: 16px;
}

.search-box button {
  padding: 12px 30px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
}

/* Features */
.features {
  padding: 80px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.features h2 {
  text-align: center;
  font-size: 36px;
  margin-bottom: 50px;
  color: var(--dark);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.feature-card {
  background: white;
  padding: 30px;
  border-radius: 15px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0,0,0,0.08);
  transition: transform 0.3s;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.feature-icon {
  font-size: 48px;
  margin-bottom: 20px;
}

.feature-card h3 {
  margin-bottom: 15px;
  color: var(--dark);
}

.feature-card p {
  color: #6b7280;
  line-height: 1.6;
}

/* Vehicle Grid */
.vehicles {
  padding: 80px 20px;
  max-width: 1200px;
  margin: 0 auto;
}

.vehicles-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
}

.filter-bar {
  display: flex;
  gap: 15px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.filter-bar select {
  padding: 10px 15px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  background: white;
}

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

.vehicle-card {
  background: white;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0,0,0,0.08);
  transition: transform 0.3s;
  cursor: pointer;
}

.vehicle-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.vehicle-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 48px;
}

.vehicle-details {
  padding: 20px;
}

.vehicle-title {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--dark);
}

.vehicle-price {
  font-size: 24px;
  color: var(--primary);
  font-weight: bold;
  margin-bottom: 15px;
}

.vehicle-specs {
  display: flex;
  gap: 15px;
  color: #6b7280;
  font-size: 14px;
  margin-bottom: 15px;
}

.vehicle-specs span {
  display: flex;
  align-items: center;
  gap: 5px;
}

.vehicle-actions {
  display: flex;
  gap: 10px;
}

.vehicle-actions button {
  flex: 1;
  padding: 10px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s;
}

.btn-view {
  background: var(--primary);
  color: white;
}

.btn-favorite {
  background: #fee2e2;
  color: #ef4444;
}

/* Footer */
.footer {
  background: var(--dark);
  color: white;
  padding: 50px 20px 30px;
  margin-top: 100px;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  margin-bottom: 30px;
}

.footer-section h3 {
  margin-bottom: 20px;
  color: var(--primary);
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 10px;
}

.footer-section ul li a {
  color: #9ca3af;
  text-decoration: none;
  transition: color 0.3s;
}

.footer-section ul li a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid #374151;
  color: #9ca3af;
}

/* Responsive */
@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }
  
  .hero h1 {
    font-size: 32px;
  }
  
  .search-box {
    flex-direction: column;
  }
  
  .search-box input, .search-box select {
    width: 100%;
  }
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 2000;
  align-items: center;
  justify-content: center;
}

.modal.active {
  display: flex;
}

.modal-content {
  background: white;
  border-radius: 15px;
  padding: 30px;
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.modal-header h2 {
  color: var(--dark);
}

.close-modal {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: #6b7280;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  color: var(--dark);
  font-weight: 500;
}

.form-group input {
  width: 100%;
  padding: 12px;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  font-size: 16px;
}

.form-group input:focus {
  outline: none;
  border-color: var(--primary);
}

.form-actions {
  display: flex;
  gap: 10px;
  margin-top: 30px;
}

.form-actions button {
  flex: 1;
  padding: 12px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  border: none;
}