/* Modern CSS Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2c3e50;
    --secondary: #3498db;
    --accent: #e74c3c;
    --success: #27ae60;
    --warning: #f39c12;
    --light: #ecf0f1;
    --dark: #2c3e50;
    --gray: #95a5a6;
    --text: #333333;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --transition: all 0.3s ease;
}

/* Base Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: #f8f9fa;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--primary) 0%, #34495e 100%);
    color: white;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
}

.logo span {
    color: var(--secondary);
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
}

nav ul li a:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(44, 62, 80, 0.8), rgba(44, 62, 80, 0.9)), 
                url('https://images.unsplash.com/photo-1492144534655-ae79c964c9d7?ixlib=rb-4.0.3&auto=format&fit=crop&w=2000&q=80');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 180px 0 100px;
    text-align: center;
    margin-top: 80px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    background: var(--secondary);
    color: white;
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.cta-button:hover {
    background: #2980b9;
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

/* Advantages */
.advantages {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    padding: 80px 0;
    background: white;
}

.advantage-card {
    text-align: center;
    padding: 2rem;
    border-radius: var(--radius);
    transition: var(--transition);
    background: var(--light);
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.advantage-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.advantage-card h3 {
    margin-bottom: 1rem;
    color: var(--primary);
}

/* Filters */
.filters-section {
    padding: 60px 0;
    background: var(--light);
}

.filters-section h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary);
    font-size: 2.5rem;
}

.filter-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.filter-form input,
.filter-form select {
    padding: 0.75rem;
    border: 2px solid #ddd;
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
}

.filter-form input:focus,
.filter-form select:focus {
    border-color: var(--secondary);
    outline: none;
}

.filter-button {
    background: var(--secondary);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.filter-button:hover {
    background: #2980b9;
    transform: translateY(-2px);
}

.reset-button {
    background: var(--gray);
    color: white;
    text-decoration: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
}

.reset-button:hover {
    background: #7f8c8d;
}

/* Cars Grid */
.cars-section {
    padding: 60px 0;
}

.cars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.car-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

.car-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.car-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.car-image.placeholder {
    background: linear-gradient(135deg, var(--secondary), var(--primary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
}

.car-info {
    padding: 1.5rem;
}

.car-info h3 {
    color: var(--primary);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.car-details {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--gray);
}

.car-specs {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.car-specs span {
    background: var(--light);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--dark);
}

.car-description {
    color: var(--text);
    margin-bottom: 1rem;
    line-height: 1.5;
}

.car-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 1rem;
}

.order-button {
    width: 100%;
    background: var(--success);
    color: white;
    border: none;
    padding: 0.75rem;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.order-button:hover {
    background: #219652;
    transform: translateY(-2px);
}

.no-cars {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
    color: var(--gray);
}

/* About Section */
.about-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary) 0%, #34495e 100%);
    color: white;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.about-content p {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--secondary);
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* Reviews Section */
.reviews-section {
    padding: 80px 0;
    background: white;
}

.reviews-section h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary);
    font-size: 2.5rem;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.review-card {
    background: var(--light);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.review-card:hover {
    transform: translateY(-5px);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 1rem;
}

.review-header h4 {
    color: var(--primary);
}

.rating {
    color: var(--warning);
    font-size: 1.2rem;
}

.review-text {
    font-style: italic;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.review-date {
    color: var(--gray);
    font-size: 0.9rem;
}

.add-review {
    max-width: 600px;
    margin: 0 auto;
    background: var(--light);
    padding: 2rem;
    border-radius: var(--radius);
}

.review-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Contact Section */
.contact-section {
    padding: 80px 0;
    background: var(--light);
}

.contact-section h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary);
    font-size: 2.5rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info h3,
.contact-form h3 {
    margin-bottom: 2rem;
    color: var(--primary);
}

.contact-item {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-item strong {
    min-width: 120px;
    color: var(--dark);
}

.contact-item a {
    color: var(--secondary);
    text-decoration: none;
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--primary);
}

.contact-form form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 0.75rem;
    border: 2px solid #ddd;
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--secondary);
    outline: none;
}

.contact-form button {
    background: var(--secondary);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.contact-form button:hover {
    background: #2980b9;
    transform: translateY(-2px);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: var(--radius);
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: modalAppear 0.3s ease;
}

@keyframes modalAppear {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray);
    transition: var(--transition);
}

.close:hover {
    color: var(--accent);
}

.car-info-modal {
    background: var(--light);
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    border-left: 4px solid var(--secondary);
}

/* Footer */
footer {
    background: var(--dark);
    color: white;
    padding: 3rem 0 2rem;
}

footer .container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--secondary);
}

.footer-section p,
.footer-section a {
    color: #bdc3c7;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--secondary);
}

.footer-bottom {
    grid-column: 1 / -1;
    text-align: center;
    padding-top: 2rem;
    margin-top: 2rem;
    border-top: 1px solid #34495e;
    color: #95a5a6;
}

/* Admin Styles */
.admin-container {
    max-width: 1400px;
    margin: 100px auto 2rem;
    padding: 0 2rem;
}

.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--secondary);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-3px);
}

.stat-card h3 {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
}

.stat-card p {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.admin-nav {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 3rem 0;
}

.admin-nav a {
    background: var(--secondary);
    color: white;
    padding: 1.5rem 2rem;
    text-decoration: none;
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
    font-weight: 600;
    box-shadow: var(--shadow);
}

.admin-nav a:hover {
    background: #2980b9;
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

table th {
    background: var(--primary);
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

table td {
    padding: 1rem;
    border-bottom: 1px solid #ecf0f1;
}

table tr:hover {
    background: #f8f9fa;
}

/* Login Form */
.login-form {
    max-width: 400px;
    margin: 100px auto;
    padding: 2rem;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.login-form h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    footer .container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    nav ul {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .filter-form {
        grid-template-columns: 1fr;
    }
    
    .cars-grid {
        grid-template-columns: 1fr;
    }
    
    .admin-nav {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.error {
    background: #f8d7da;
    color: #721c24;
    padding: 0.75rem;
    border-radius: var(--radius);
    margin: 1rem 0;
    border-left: 4px solid #dc3545;
}

.success {
    background: #d4edda;
    color: #155724;
    padding: 0.75rem;
    border-radius: var(--radius);
    margin: 1rem 0;
    border-left: 4px solid #28a745;
}

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

.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }
.p-2 { padding: 2rem; }