* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
 /* Header Styles */
 .header {
    background: rgba(0, 51, 102, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    color: white;
    font-size: 24px;
    font-weight: bold;
    text-decoration: none;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.nav-menu {
    display: flex;
    gap: 1.5rem;
    margin-right: 0;
    margin-left: auto;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    transition: all 0.3s ease;
    padding: 4px 4px;
    border-radius: 4px;
    position: relative;
    white-space: nowrap;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    background-color: #ffffff;
    border-radius: 5px;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-menu a:hover::after {
    width: 90%;
}

.menu-toggle {
    display: none;
    font-size: 28px;
    cursor: pointer;
    color: white;
}

/* Mobil görünüm */
@media (max-width: 768px) {
    .nav-menu {
        display: none; /* Menü varsayılan olarak gizli */
        flex-direction: column;
        position: absolute;
        top: 60px;
        right: 20px;
        background: rgba(0, 51, 102, 0.9);
        width: 200px;
        border-radius: 8px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
        padding: 10px 0;
    }

    .nav-menu.active {
        display: flex; /* Açıldığında göster */
    }

    .nav-menu a {
        padding: 10px 15px;
        text-align: center;
        display: block;
    }

    .menu-toggle {
        display: block; /* Mobilde göster */
    }
}