/* Reset ve Temel Stiller */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)),
                url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 800"><rect fill="%23f0f0f0" width="1200" height="800"/><rect fill="%234a90e2" x="0" y="600" width="1200" height="200"/><circle fill="%23333" cx="300" cy="650" r="80"/><circle fill="%23333" cx="900" cy="650" r="80"/><rect fill="%23e74c3c" x="150" y="500" width="800" height="150" rx="10"/><rect fill="%232c3e50" x="200" y="520" width="700" height="30"/><text x="600" y="580" text-anchor="middle" fill="white" font-size="24" font-family="Arial">SERENLER OTOMOTİV</text></svg>');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    position: relative;
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.8rem;
    font-weight: 300;
    margin-bottom: 2rem;
    color: #e74c3c;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.hero-description {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    opacity: 0.9;
}

/* Services Section */
.services {
    padding: 100px 0;
    background: #f8f9fa;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #2c3e50;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: #e74c3c;
}

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

.service-card {
    background: white;
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e9ecef;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #2c3e50;
}

.service-card p {
    color: #666;
    line-height: 1.6;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: #2c3e50;
}

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

.contact-icon {
    font-size: 1.2rem;
    margin-right: 1rem;
    min-width: 30px;
}

.contact-form {
    background: #f8f9fa;
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #2c3e50;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #e74c3c;
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.1);
}

.submit-btn {
    background: #e74c3c;
    color: white;
    padding: 15px 30px;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease;
    width: 100%;
}

.submit-btn:hover {
    background: #c0392b;
    transform: translateY(-2px);
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 40px 0;
}

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

.social-media {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: inline-block;
    font-size: 1.5rem;
    text-decoration: none;
    transition: transform 0.3s ease;
}

.social-link:hover {
    transform: scale(1.2);
}

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

/* Responsive Tasarım */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.4rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .service-card {
        padding: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        background-attachment: scroll;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .services,
    .contact {
        padding: 60px 0;
    }
    
    .contact-form {
        padding: 2rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Hover Efektleri */
.service-card,
.submit-btn,
.social-link {
    transition: all 0.3s ease;
}

/* Loading Animation */
.hero-content > * {
    animation-fill-mode: both;
}

.hero-title {
    animation-delay: 0.2s;
}

.hero-subtitle {
    animation-delay: 0.4s;
}

.hero-description {
    animation-delay: 0.6s;
}