:root {
    --primary-color: #1e293b;
    --accent-color: #f97316;
    --light-bg: #f8fafc;
    --text-color: #334155;
    --white: #ffffff;
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Header & Navigation */
header {
    background-color: var(--white);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo-container {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 45px;
    width: auto;
    object-fit: contain;
    display: block;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 0.5px;
}

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

.nav-links {
    display: flex;
    gap: 25px;
}

.nav-links a {
    font-weight: 600;
    font-size: 15px;
    color: var(--primary-color);
    transition: color 0.3s;
}

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

/* Hero Section - hero.webp Entegrasyonu */
.hero {
    background: linear-gradient(rgba(30, 41, 59, 0.82), rgba(30, 41, 59, 0.82)), url('hero.webp') no-repeat center center/cover;
    color: var(--white);
    text-align: center;
    padding: 120px 20px;
}

.hero h1 {
    font-size: 38px;
    margin-bottom: 20px;
    font-weight: 700;
    line-height: 1.2;
}

.hero p {
    font-size: 18px;
    max-width: 750px;
    margin: 0 auto 30px auto;
    color: #cbd5e1;
}

.btn {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--white);
    padding: 12px 30px;
    border-radius: 5px;
    font-weight: 600;
    transition: background 0.3s;
}

.btn:hover {
    background-color: #ea580c;
}

/* Services Section */
.services {
    padding: 80px 20px;
    background-color: var(--light-bg);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 30px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.section-title p {
    color: #64748b;
    font-size: 16px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
    transition: transform 0.3s;
}

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

.service-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

/* About Section */
.about {
    padding: 80px 20px;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 50px;
    flex-wrap: wrap;
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text h2 {
    font-size: 30px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.about-image {
    flex: 1.2;
    min-width: 280px;
    height: 450px;
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(30, 41, 59, 0.85);
    padding: 15px;
    text-align: center;
    color: var(--white);
    font-weight: 600;
    font-size: 15px;
    backdrop-filter: blur(4px);
}

/* Contact Section */
.contact {
    padding: 80px 20px;
    background-color: var(--light-bg);
    text-align: center;
}

.contact p {
    margin-bottom: 12px;
    color: #64748b;
    font-size: 16px;
}

/* Footer */
footer {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 30px 20px;
    font-size: 14px;
}

/* Mobile Responsive Design */
@media (max-width: 768px) {
    nav {
        height: 70px;
    }
    .nav-links {
        display: none; 
    }
    .hero {
        padding: 80px 15px;
    }
    .hero h1 {
        font-size: 26px;
    }
    .hero p {
        font-size: 15px;
    }
    .section-title h2 {
        font-size: 24px;
    }
    .about-image {
        height: 320px;
    }
}