/* Genel Ayarlar */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

body {
    background-color: #ffffff;
    color: #333333;
    line-height: 1.6;
    padding-top: 120px; /* header yüksekliği kadar boşluk */
}

/* Header / Menü */
header {
    background-color: #ffffff;
    padding: 20px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

header h1 {
    text-align: center;
    margin-bottom: 10px;
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    text-decoration: none;
    color: #333333;
    font-weight: bold;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: #007BFF;
}

/* Hero / Ana Bölüm */
.hero {
    text-align: center;
    padding: 150px 20px 100px 20px;
    background-color: #fdfdfd;
}

.hero h2 {
    font-size: 36px;
    margin-bottom: 10px;
}

.hero p {
    font-size: 18px;
    color: #555555;
    margin-bottom: 20px;
}

.btn {
    display: inline-block;
    margin: 10px;
    padding: 12px 25px;
    background-color: #007BFF;
    color: #ffffff;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}

.btn:hover {
    background-color: #0056b3;
}

/* Bölümler */
.section {
    padding: 80px 20px;
    text-align: center;
}

.section h3 {
    font-size: 28px;
    margin-bottom: 15px;
}

.section p {
    font-size: 16px;
    color: #555555;
}

/* Footer */
footer {
    background-color: #f8f8f8;
    text-align: center;
    padding: 20px 0;
    font-size: 14px;
    color: #777777;
    margin-top: 50px;
}