/* Header Stilleri */
header {
    background: linear-gradient(135deg, #22c55e, #15803d);
    color: white;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

header .logo img {
    max-height: 40px;
    margin-left: 10px;
}

header h1 {
    margin: 0;
    font-size: 1.5rem;
    font-weight: 500;
    flex-grow: 1;
    text-align: center;
}

nav a {
    color: white;
    text-decoration: none;
    margin: 0 10px;
    font-size: 0.9rem;
    transition: opacity 0.3s;
}

nav a:hover {
    opacity: 0.8;
}

/* Responsive Tasarım */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 10px;
        padding: 10px;
    }

    header .logo img {
        margin-left: 0;
    }

    header h1 {
        font-size: 1.2rem;
    }

    nav a {
        font-size: 0.85rem;
        margin: 0 8px;
    }
}