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

:root {
    --primary: #0a1628;
    --secondary: #ff6b35;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --light: #f8f9fa;
    --dark: #343a40;
    --gray: #6c757d;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    color: var(--dark);
    line-height: 1.6;
}

/* Header */
.header {
    background: var(--primary);
    color: white;
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
}

.container {
    max-width: 1300px;
    margin: auto;
    padding: 0 20px;
}

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

.logo h1 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

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

.logo p {
    font-size: 12px;
    opacity: 0.8;
    margin-top: 5px;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
    font-weight: 500;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #1a2a4a 100%);
    color: white;
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,107,53,0.1)" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 0.3;
}

.hero h2 {
    font-size: 48px;
    margin-bottom: 20px;
    animation: fadeInUp 0.8s ease;
}

.hero p {
    font-size: 18px;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease 0.2s both;
}

/* VIN Form */
.vin-form {
    margin-top: 40px;
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.vin-form input {
    padding: 18px 25px;
    width: 400px;
    font-size: 16px;
    border: none;
    border-radius: 50px;
    outline: none;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    transition: transform 0.3s;
}

.vin-form input:focus {
    transform: scale(1.02);
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.vin-form button {
    padding: 18px 40px;
    font-size: 16px;
    background: var(--secondary);
    color: white;
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.vin-form button:hover {
    background: #e55a2b;
    transform: translateY(-2px);
}

/* Section Styles */
.section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--primary);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--secondary);
    margin: 15px auto 0;
    border-radius: 2px;
}

/* Comparison Table */
.comparison-table {
    width: 100%;
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 30px rgba(0,0,0,0.1);
}

.comparison-table th {
    background: var(--primary);
    color: white;
    padding: 18px;
    text-align: center;
    font-weight: 600;
}

.comparison-table td {
    padding: 15px;
    text-align: center;
    border-bottom: 1px solid #eee;
}

.comparison-table tr:hover {
    background: #f5f5f5;
}

.check {
    color: var(--success);
    font-size: 20px;
    font-weight: bold;
}

.wrong {
    color: var(--danger);
    font-size: 20px;
}

/* Testimonials */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.testimonial-card {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s;
}

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

.testimonial-stars {
    color: #ffc107;
    font-size: 18px;
    margin: 15px 0;
}

.testimonial-text {
    color: var(--gray);
    line-height: 1.7;
}

/* FAQs */
.faq-grid {
    max-width: 800px;
    margin: auto;
}

.faq-item {
    background: white;
    margin-bottom: 20px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.faq-question {
    padding: 20px 25px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s;
}

.faq-question:hover {
    background: #f5f5f5;
}

.faq-answer {
    padding: 0 25px 20px;
    color: var(--gray);
    display: none;
}

.faq-answer.show {
    display: block;
}

/* Refund Section */
.refund-section {
    background: linear-gradient(135deg, var(--primary), #1a2a4a);
    color: white;
    text-align: center;
    padding: 60px 0;
}

.refund-section h2 {
    font-size: 32px;
    margin-bottom: 20px;
}

.refund-section p {
    max-width: 800px;
    margin: auto;
    line-height: 1.8;
}

/* Footer */
.footer {
    background: var(--primary);
    color: white;
    padding: 50px 0 20px;
}

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

.footer h4 {
    margin-bottom: 20px;
    color: var(--secondary);
}

.footer a {
    color: #aaa;
    text-decoration: none;
    display: block;
    margin-bottom: 10px;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #aaa;
    font-size: 12px;
}

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

/* Mobile Responsive */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .nav {
        gap: 20px;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero h2 {
        font-size: 28px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .vin-form input {
        width: 90%;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .comparison-table {
        font-size: 12px;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 10px 5px;
    }
    
    .testimonial-grid {
        grid-template-columns: 1fr;
    }
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid #fff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.6s linear infinite;
}

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

/* Alert Boxes */
.alert {
    padding: 15px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border-left: 4px solid var(--success);
}

.alert-error {
    background: #f8d7da;
    color: #721c24;
    border-left: 4px solid var(--danger);
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border-left: 4px solid var(--warning);
}