/* 🌐 Navbar */
header {
    width: 100%;
    background: linear-gradient(90deg, #002b5c, #004d99);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    position: sticky;
    top: 0;
    z-index: 1030;
}

/* Navbar genel */
.navbar {
    padding: 0.75rem 1rem;
    background: transparent;
}

.navbar-brand {
    color: #fff !important;
    font-weight: 600;
    font-size: 1.25rem;
}

.nav-link {
    color: #fff !important;
    font-weight: 500;
    transition: color 0.2s ease;
}

    .nav-link:hover {
        color: #ffd700 !important;
    }

.navbar-toggler {
    border: none;
}

.navbar-toggler-icon {
    filter: brightness(0) invert(1);
}

/* 🔽 Mobil menü düzeltme */
@media (max-width: 992px) {
    .navbar-collapse {
        background: linear-gradient(90deg, #002b5c, #004d99);
        position: fixed;
        top: 60px; /* Navbar yüksekliği kadar */
        left: 0;
        width: 100%;
        z-index: 1029;
        border-bottom-left-radius: 8px;
        border-bottom-right-radius: 8px;
        box-shadow: 0 4px 10px rgba(0,0,0,0.3);
        max-height: calc(100vh - 60px);
        overflow-y: auto;
        padding: 10px 0;
        transition: transform 0.3s ease-in-out;
        transform: translateY(-100%);
    }

        .navbar-collapse.show {
            transform: translateY(0);
        }

    .nav-link {
        padding: 12px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
        text-align: center;
    }

        .nav-link:last-child {
            border-bottom: none;
        }

    body.nav-open {
        overflow: hidden;
    }
}

/* 🧱 Ana içerik */
.main-wrapper {
    flex: 1;
    display: flex;
    justify-content: center;
    padding: 40px 20px;
}

main {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    max-width: 900px;
    width: 100%;
}

/* 🦶 Footer */
footer {
    background: linear-gradient(90deg, #002b5c, #004d99);
    color: #f0f0f0;
    text-align: center;
    padding: 1rem 0;
    width: 100%;
    margin-top: auto;
}

    footer b {
        color: #ffd700;
    }