@media (max-width: 768px) {
    .header {
        position: fixed;
        background-attachment: scroll;
    }

    .header-container {
        display: flex;
        flex-direction: row; 
        justify-content: space-between;
        align-items: center;
        padding: 10px 4%;
    }

    .main-nav {
        display: flex;
        gap: 15px;
    }

    .main-nav a:not([href*="hero"]):not([href*="birim"]) {
        display: none;
    }

    .main-nav a {
        font-size: 13px;
        font-weight: 700;
        white-space: nowrap;
    }

    .btn-whatsapp {

        padding: 4px 4px;
        font-size: 0;
        width: auto;
    }

    .btn-whatsapp .wpico {
        height: 30px;
        margin: 0;
    }

    .hero {
        height: auto;
        padding: 60px 0;
        margin-top: 80px;
        justify-content: flex-start; 
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: left; 
        width: 92%;
        margin-left: 4%;
    }

    .hero-text h1 {
        letter-spacing: 0.01em;
        font-size: 2.8rem;
        text-align: left;
    }

    .hero-text p {
        font-size: 1.1rem;
        text-align: left;
        margin-left: 0;
    }

    .action-panel {
        margin-top: 30px;
        padding: 20px;
    }
   
    .fiyat-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        width: 100%;
        margin-left: 4px;
        margin-right: 4px;
    }

    .fiyat-card {
        height: 250px;
        padding: 20px;
    }

    .fiyat-card h3 {
        font-size: 1.1rem;
    }

    .fiyat-card p {
        font-size: 0.85rem;
        display: -webkit-box;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .bilgi-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
        width: 94%;
    }

    .bilgi-card {
        height: 280px;
        padding: 20px 15px;
    }

    .bilgi-card:nth-child(n+5) {
        display: none !important;
    }

    .bilgi-card h3 {
        font-size: 1rem;
    }

    .bilgi-card p {
        font-size: 0.8rem;
    }
    .footer-brand, 
    .footer-col:nth-child(3) { 
        display: none !important; 
    }

    .footer-container {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: space-between;
        height: auto;
        padding: 10px 4px;
        gap: 20px;
    }

    .footer-col {
        flex: 1;
        min-width: 140px;
        text-align: left;
    }

    .footer-col h4 {
        font-size: 1rem;
        margin-bottom: 15px;
    }

    .footer-links a, .footer-contact-item span {
        font-size: 0.85rem;
    }

    .footer-bottom {
        flex-direction: column;
        margin-top: 30px;
        padding: 10px 0;
        border-top: 1px solid rgba(255,255,255,0.1);
    }
}