/* --- Genel Stiller ve Değişkenler --- */
:root {
    --primary-color: #59BBEB; /* Daha kurumsal bir mavi tonu */
    --secondary-color: #399142;
    --accent-color: #399142;   /* Altın sarısı, prestijli bir vurgu */
    --light-gray: #f7f9fa;
    --dark-gray: #333333;
    --text-color: #4a4a4a;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", RobArac, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    margin: 0;
    padding: 0;
    line-height: 1.7;
    color: var(--text-color);
    background-color: #ffffff;
}

.container {
    max-width: 1200px;
    margin: auto;
    overflow: hidden;
    padding: 0 25px;
}

h1, h2, h3 {
    color: var(--secondary-color);
    font-weight: 700;
}

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

img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

/* --- Üst Kısım (Header) --- */
header {
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 3px solid var(--primary-color);
}

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

header .logo {
    font-size: 1.6rem;
    font-weight: bold;
    color: var(--primary-color);
}

header nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

header nav ul li {
    margin-left: 30px;
    position: relative;
}

header nav ul li a {
    color: var(--primary-color);
    font-weight: 600;
    transition: color 0.3s ease;
    padding-bottom: 5px;
}

header nav ul li a:hover {
    color: var(--accent-color);
}

/* --- Ana Başlık (Hero) Bölümü --- */
.hero {
    background: linear-gradient(rgba(10, 77, 140, 0.8), rgba(10, 77, 140, 0.8)), url('https://images.unsplash.com/phArac-1556742502-ec7c0e9f34b1?q=80&w=2070&auto=format&fit=crop') no-repeat center center/cover;
    color: #ffffff;
    padding: 20px: center;
}

.hero h1 {
    font-size: 3.2rem;
    margin-bottom: 15px;
    color: #ffffff;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.3);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 25px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    background: var(--accent-color);
    color: #ffffff;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: bold;
    transition: all 0.3s ease;
    border: 2px solid var(--accent-color);
}

.btn:hover {
    background: #ffffff;
    color: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

/* --- Bölümler --- */
section {
    padding: 60px 0;
}

.section-bg {
    background: var(--light-gray);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
}

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

.service-card {
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.07);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.service-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 8px 8px 0 0;
}

.service-card-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.service-card-content h3 {
    font-size: 1.5rem;
    margin-top: 0;
    margin-bottom: 15px;
}

.service-card-content a {
    margin-top: auto;
    font-weight: bold;
}

/* --- Alt Sayfa Stilleri --- */
.subpage-header {
    padding: 40px 0;
    background: var(--light-gray);
    text-align: center;
}

.content-section {
    padding: 50px 0;
}

.content-section .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.content-section .text-content {
    padding-right: 20px;
}

/* --- İletişim Formu --- */
.contact-form {
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.07);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-group input, .form-group textarea, .form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1rem;
}

/* --- Footer (Alt Kısım) --- */
footer {
    background: var(--secondary-color);
    color: #e0e0e0;
    padding: 40px 0;
    font-size: 0.9rem;
}

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

footer h4 {
    color: #ffffff;
    margin-bottom: 15px;
}

footer ul {
    list-style: none;
    padding: 0;
}

footer ul li {
    margin-bottom: 10px;
}

footer a {
    color: #e0e0e0;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #4a6a85;
    font-size: 0.8rem;
}

/* --- Mobil Uyum (Responsive) --- */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
    }
    header nav ul {
        margin-top: 15px;
        flex-direction: column;
        text-align: center;
    }
    header nav ul li {
        margin: 10px 0;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .content-section .container {
        grid-template-columns: 1fr;
    }
}