* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Poppins', sans-serif; }
        body { background-color: #f8f9fa; color: #333; line-height: 1.6; }
        header { background: #0f2027; color: #fff; padding: 15px 0; position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
        .container { width: 90%; max-width: 1200px; margin: 0 auto; }
        .nav-container { display: flex; justify-content: space-between; align-items: center; }
        .logo { font-size: 24px; font-weight: 700; color: #ff9f43; }
        .nav-links { display: flex; list-style: none; }
        .nav-links li { margin-left: 20px; }
        .nav-links a { color: #fff; text-decoration: none; font-size: 14px; transition: 0.3s; }
        .nav-links a:hover { color: #ff9f43; }
        
.hero {
    background-image: linear-gradient(rgba(15, 32, 39, 0.35), rgba(15, 32, 39, 0.65)),url("resimler/ducomp-dv-serisi-invertorlu-kompresor.jpg");
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover; /* responsive resize */
    
    padding: 100px 0;
    text-align: center;
    color: #fff;
}
        
        .heroxx { background: linear-gradient(rgba(15, 32, 39, 0.85), rgba(15, 32, 39, 0.85)), url('resimler/ducomp-dv-serisi-invertorlu-kompresor.jpg') no-repeat center center/cover; padding: 100px 0; text-align: center; color: #fff; }
        .hero h1 { font-size: 2.5rem; margin-bottom: 20px; font-weight: 700; }
        .hero p { font-size: 1.2rem; margin-bottom: 30px; max-width: 800px; margin-left: auto; margin-right: auto; }
        .btn-cta { background: #ff9f43; color: #fff; padding: 12px 30px; border-radius: 25px; text-decoration: none; font-weight: 600; transition: 0.3s; display: inline-block; }
        .btn-cta:hover { background: #f39c12; transform: translateY(-2px); }

        section { padding: 80px 0; border-bottom: 1px solid #e9ecef; }
        .section-title { text-align: center; font-size: 2rem; margin-bottom: 50px; position: relative; font-weight: 700; color: #0f2027; }
        .section-title::after { content: ''; width: 60px; height: 3px; background: #ff9f43; position: absolute; bottom: -10px; left: 50%; transform: translateX(-50%); }

        /* Gelişmiş 3'lü Grid Sistemi */
        .grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; margin-top: 40px; }
        .card { background: #fff; border-radius: 8px; padding: 25px; box-shadow: 0 4px 15px rgba(0,0,0,0.05); transition: 0.3s; border-top: 4px solid #0f2027; overflow: hidden; display: flex; flex-direction: column; justify-content: space-between; }
        .card:hover { transform: translateY(-5px); box-shadow: 0 8px 25px rgba(0,0,0,0.1); border-top-color: #ff9f43; }
        .card-content h3 { font-size: 1.25rem; margin-bottom: 12px; color: #0f2027; font-weight: 600; }
        .card img { width: 100%; height: 220px; border-radius: 4px; margin-bottom: 15px; display: block; object-fit: contain; background: #fdfdfd; }

        .faq-item { background: #fff; margin-bottom: 15px; border-radius: 6px; box-shadow: 0 2px 5px rgba(0,0,0,0.03); }
        .faq-question { padding: 20px; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; background: #f1f3f5; border-radius: 6px; }
        .faq-answer { padding: 20px; display: none; border-top: 1px solid #e9ecef; background: #fff; }

        .whatsapp-fixed { position: fixed; bottom: 20px; right: 20px; background: #25d366; color: #fff; padding: 15px 25px; border-radius: 50px; text-decoration: none; font-weight: 600; box-shadow: 0 4px 10px rgba(0,0,0,0.2); z-index: 1000; transition: 0.3s; display: flex; align-items: center; gap: 10px; }
        .whatsapp-fixed:hover { transform: scale(1.05); background: #20ba5a; }

        @media (max-width: 768px) {
            .nav-container { flex-direction: column; gap: 15px; }
            .nav-links { flex-wrap: wrap; justify-content: center; }
            .nav-links li { margin: 5px 10px; }
            .hero h1 { font-size: 1.8rem; }
            .hero p { font-size: 1rem; }
            section { padding: 50px 0; }
        }
        
        
        
           .contact-container {
        max-width: 600px;
        margin: auto;
        background: #ffffff;
        padding: 20px;
        border-radius: 10px;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    }

    .contact-item {
        margin-bottom: 15px;
    }

    .label {
        font-weight: bold;
        color: #333;
        display: block;
        margin-bottom: 5px;
    }
    a {
        color: #0066cc;
        text-decoration: none;
        word-break: break-word;
    }

    a:hover {
        text-decoration: underline;
    }