Navbar hamburger menü yapımı

/* Genel Sıfırlama */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    list-style: none;
}

/* Navbar Genel Tasarımı */
.navbar {
    background-color: #1a1a1a;
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

/* Logo */
.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #fff;
}

.logo span {
    color: #ff4757;
}

/* Menü Öğeleri (Masaüstü) */
.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: #fff;
    font-size: 1rem;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #ff4757;
}

/* Hamburger Butonu Başlangıçta Gizli */
.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: #fff;
    transition: all 0.3s ease;
}

/* --- MOBİL UYUMLULUK (Responsive) --- */
@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    /* Hamburger Aktif Olduğunda Çarpı Efekti */
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    /* Mobil Menü Tasarımı */
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: #1a1a1a;
        width: 100%;
        text-align: center;
        transition: 0.3s ease;
        box-shadow: 0 10px 10px rgba(0,0,0,0.2);
        padding: 20px 0;
        gap: 20px;
    }

    .nav-menu.active {
        left: 0;
    }
}

const hamburger = document.querySelector(".hamburger");
const navMenu = document.querySelector(".nav-menu");

// Hamburger menüye tıklanınca aç/kapat
hamburger.addEventListener("click", () => {
    hamburger.classList.toggle("active");
    navMenu.classList.toggle("active");
});

// Menüdeki herhangi bir linke tıklandığında menüyü kapat (İsteğe bağlı)
document.querySelectorAll(".nav-link").forEach(n => n.addEventListener("click", () => {
    hamburger.classList.remove("active");
    navMenu.classList.remove("active");
}));