/* Temel Ayarlar */
body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header (Üst Kısım) */
.header {
    background: #fff;
    color: #333;
    padding: 1.5rem 0;
    border-bottom: 3px solid #e0e0e0;
}

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

.logo {
    height: 60px;
}

.navbar ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
}

.navbar ul li {
    margin-left: 25px;
}

.navbar ul li a {
    color: #333;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.navbar ul li a:hover {
    color: #d11a2d;
}

/* Menü Butonu */
.menu-toggle {
    display: none;
    font-size: 2rem;
    background: none;
    border: none;
    cursor: pointer;
    color: #333;
}

/* Banner */
.banner {
    background: url('images/banner.jpg') no-repeat center center/cover;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-align: center;
    position: relative;
}

.banner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1; /* Arka plan katmanı */
}

.banner-content {
    z-index: 2; /* İçerik katmanı */
}

.banner h1 {
    font-size: 3rem;
    margin-bottom: 10px;
}

.banner p {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.btn {
    display: inline-block;
    background: #d11a2d;
    color: #fff;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.btn:hover {
    background: #a91523;
}

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

.section h2 {
    text-align: center;
    color: #d11a2d;
    margin-bottom: 40px;
}

.bg-light {
    background: #f9f9f9;
}

/* Footer (Alt Kısım) */
.footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
}

/* Mobil Uyumlu Tasarım */
@media (max-width: 768px) {
    /* Header */
    .header .container {
        flex-direction: row;
        justify-content: space-between;
    }

    .navbar {
        display: none;
        flex-direction: column;
        width: 100%;
        text-align: left;
        background-color: #fff;
        position: absolute;
        top: 100%;
        left: 0;
        border-top: 1px solid #e0e0e0;
        z-index: 1000; /* Menüyü en öne getir */
    }

    .navbar ul {
        flex-direction: column;
        padding: 10px 0;
    }

    .navbar ul li {
        margin: 0;
    }

    .navbar ul li a {
        display: block;
        padding: 10px 20px;
        border-bottom: 1px solid #f4f4f4;
    }
    
    .menu-toggle {
        display: block;
    }

    .navbar.active {
        display: flex;
    }

    /* Banner */
    .banner {
        height: 75vh;
    }

    .banner h1 {
        font-size: 2rem;
    }

    .banner p {
        font-size: 1.1rem;
    }
}