/* Genel Ayarlar */
:root {
    --primary-color: #0d47a1; /* Koyu Mavi */
    --secondary-color: #00bcd4; /* Turkuaz */
    --text-dark: #333;
    --text-light: #f4f4f4;
    --bg-light: #ffffff;
    --bg-dark: #f0f2f5; /* Hafif gri arka plan */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
}

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

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-light);
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    margin-bottom: 20px;
}

h1 { font-size: 2.8em; }
h2 { font-size: 2.2em; }
h3 { font-size: 1.6em; }

p {
    margin-bottom: 15px;
}

a {
    text-decoration: none;
    color: var(--primary-color);
}

ul {
    list-style: none;
}

/* Butonlar */
.btn {
    display: inline-block;
    padding: 12px 25px;
    border-radius: 5px;
    font-weight: 600;
    transition: background-color 0.3s ease;
    margin-right: 15px;
}

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

.btn-primary:hover {
    background-color: darken(var(--primary-color), 10%); /* CSS preprocessors ile çalışır */
    background-color: #0a3a8c; /* Direkt değer */
}

.btn-secondary {
    background-color: transparent;
    color:white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
}

/* Header */
.main-header {
    background-color: var(--bg-light);
    padding: 20px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

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

.main-header .logo {
    display: flex;
    align-items: center;
    font-size: 1.5em;
    font-weight: 700;
    color: var(--primary-color);
}

.main-header .logo img {
    height: 60px; /* Logo boyutunu ayarlayın */
    margin-right: 10px;
}

.main-nav ul {
    display: flex;
}

.main-nav ul li {
    margin-left: 30px;
}

.main-nav ul li a {
    color: var(--text-dark);
    font-weight: 600;
    transition: color 0.3s ease;
}

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

.lang-switcher a {
    color: var(--primary-color) !important;
    border: 1px solid var(--primary-color);
    padding: 5px 10px;
    border-radius: 3px;
    font-size: 0.9em;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('hero-bg.jpg') no-repeat center center/cover;
    color: var(--text-light);
    text-align: center;
    padding: 150px 0;
    min-height: 600px; /* Minimum yükseklik */
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-section h1 {
    color: var(--text-light);
    font-size: 3.5em;
    margin-bottom: 20px;
}

.hero-section p {
    font-size: 1.3em;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons .btn {
    font-size: 1.1em;
}

/* Services Overview */
.services-overview {
    padding: 80px 0;
    text-align: center;
    background: var(--bg-dark);
}

.services-overview h2 {
    margin-bottom: 50px;
}

.service-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(225px, 1fr));
    gap: 30px;
}

.service-cards .card {
    background: var(--bg-light);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-cards .card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.service-cards .card i {
    font-size: 3em;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

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

.service-cards .card p {
    font-size: 0.95em;
    color: #555;
}

/* Why Choose Us Section */
.why-choose-us {
    padding: 80px 0;
    text-align: center;
    background: var(--bg-light);
}

.why-choose-us h2 {
    margin-bottom: 50px;
}

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

.feature-item {
    background: var(--bg-dark);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.feature-item i {
    font-size: 2.5em;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.feature-item h3 {
    font-size: 1.5em;
    margin-bottom: 10px;
}

/* CTA Section */
.cta-section {
    background: var(--primary-color);
    color: var(--text-light);
    text-align: center;
    padding: 60px 0;
}

.cta-section h2 {
    color: var(--text-light);
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.2em;
    margin-bottom: 30px;
}

.cta-section .btn {
    background-color: var(--secondary-color);
    color: var(--text-dark);
    border-color: var(--secondary-color);
}

.cta-section .btn:hover {
    background-color: darken(var(--secondary-color), 10%);
    background-color: #00a4b9; /* Direkt değer */
}


/* Footer */
.main-footer {
    background-color: #222;
    color: var(--text-light);
    padding: 60px 0 20px;
}

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

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

.footer-col p, .footer-col ul li {
    font-size: 0.95em;
    margin-bottom: 10px;
}

.footer-col a {
    color: var(--text-light);
    transition: color 0.3s ease;
}

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

.footer-col i {
    margin-right: 10px;
    color: var(--secondary-color);
}

.social-icons {
    margin-top: 20px;
}

.social-icons a {
    display: inline-block;
    color: var(--text-light);
    font-size: 1.5em;
    margin-right: 15px;
    transition: color 0.3s ease;
}

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

.main-footer .copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #444;
    font-size: 0.85em;
}


/* Responsive Ayarlar */
@media (max-width: 768px) {
    .main-header .container {
        flex-direction: column;
        text-align: center;
    }
    .main-nav ul {
        margin-top: 20px;
        flex-wrap: wrap; /* Menü elemanları küçük ekranlarda alt alta geçebilir */
        justify-content: center;
    }
    .main-nav ul li {
        margin: 0 15px 10px 15px; /* Dikey boşluk da ekle */
    }
    .lang-switcher {
        margin-top: 10px;
    }

    .hero-section {
        padding: 100px 0;
    }
    .hero-section h1 {
        font-size: 2.5em;
    }
    .hero-section p {
        font-size: 1.1em;
    }
    .hero-buttons .btn {
        display: block;
        margin: 15px auto;
        width: 80%;
    }

    .service-cards, .features-grid, .footer-content {
        grid-template-columns: 1fr; /* Küçük ekranlarda sütunlar alt alta */
    }
}

@media (max-width: 480px) {
    .main-header .logo span {
        font-size: 1.2em;
    }
    .main-nav ul li {
        margin: 0 10px 10px 10px;
    }
    .hero-section h1 {
        font-size: 2em;
    }
    .hero-section p {
        font-size: 1em;
    }
}