* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f4f4f4;
}

.navbar {
    display: flex;
    justify-content: space-around;
    align-items: center;
    min-height: 8vh;
    background-color: #2c3e50;
    color: white;
    padding: 0 20px;
}

.logo {
    color: #ecf0f1;
    text-transform: uppercase;
    letter-spacing: 5px;
    font-size: 20px;
    font-weight: bold;
}

.logo span {
    color: #3498db;
}

.nav-links {
    display: flex;
    justify-content: space-around;
    width: 35%;
    list-style: none;
}

.nav-links a {
    color: #ecf0f1;
    text-decoration: none;
    letter-spacing: 1px;
    font-weight: bold;
    font-size: 14px;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #3498db;
}

.nav-links a.active {
    border-bottom: 2px solid #3498db;
    padding-bottom: 5px;
}

/* Mobil için Burger Menü İkonu (Gizli) */
.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: #ecf0f1;
    margin: 5px;
}

/* Mobil Uyumluluk (Responsive) */
@media screen and (max-width: 768px) {
    .nav-links {
        display: none; /* Basitlik için mobilde gizlendi, JS ile açılabilir */
    }
    
    .burger {
        display: block;
    }
    
    .navbar {
        justify-content: space-between;
    }
}

/* İLETİŞİM SAYFASI TASARIMI */
.contact-section {
    padding: 60px 10%;
    background-color: #f4f4f4;
    min-height: 80vh; /* Sayfanın altını doldurmak için */
    text-align: center;
}

.contact-section h2 {
    color: #2c3e50;
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.contact-desc {
    color: #7f8c8d;
    margin-bottom: 40px;
}

.contact-container {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    background-color: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* Bilgi Alanı */
.contact-info {
    flex: 1;
    text-align: left;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-info h3 {
    color: #2c3e50;
    margin-bottom: 20px;
}

.contact-info p {
    color: #34495e;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

/* Form Alanı */
.contact-form {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #bdc3c7;
    border-radius: 5px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: #3498db;
}

.contact-form button {
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

/* Mobilde İletişim Sayfası Uyumluğu */
@media screen and (max-width: 768px) {
    .contact-container {
        flex-direction: column;
    }
}

/* PROJELER SAYFASI ÖZEL BAŞLIK ALANI */
.projects-page-section {
    padding: 60px 10%;
    background-color: #f4f4f4;
    min-height: 80vh;
}

.projects-header {
    text-align: center;
    margin-bottom: 50px;
}

.projects-header h2 {
    color: #2c3e50;
    font-size: 2.5rem;
    margin-bottom: 10px;
}

.projects-header p {
    color: #7f8c8d;
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}


/* HAKKIMDA BÖLÜMÜ */
.about-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 80px 10%;
    background-color: white; /* Projeler kısmı gri olduğu için burayı beyaz yaptık, renk ayrımı sağlar */
    gap: 50px;
}

.about-content {
    flex: 1;
}

.about-content h2 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 20px;
}

.about-content p {
    font-size: 1.1rem;
    color: #7f8c8d;
    line-height: 1.7;
    margin-bottom: 20px;
}

.about-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

/* Profil Fotoğrafı Alanı */
.placeholder-img {
    width: 300px;
    height: 300px;
    background-color: #bdc3c7;
    border-radius: 50%; /* Tam yuvarlak yapar */
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    font-weight: bold;
    box-shadow: 0 10px 20px rgba(0,0,0,0.15);
}

/* Mobil Uyumluluk (Responsive) */
@media screen and (max-width: 768px) {
    .about-section {
        flex-direction: column-reverse; /* Mobilde yazıyı alta, resmi üste alır */
        text-align: center;
        padding: 50px 20px;
    }
}