body {
    font-family: 'Poppins', sans-serif;
    background-color: #f8f9fa; /* Açık gri tonu */
    color: #343a40;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

.header {
    background-color: #004d99; /* Koyu mavi tonu */
    color: #ffffff;
    padding: 6rem 1rem;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.header h1 {
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.header p {
    font-size: 1.5rem;
    margin-top: 0;
    opacity: 0.9;
}

.container {
    max-width: 1000px;
    margin: 3rem auto;
    padding: 0 1.5rem;
}

.category {
    background-color: #ffffff;
    border-radius: 15px;
    padding: 2rem;
    margin-bottom: 2.5rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.category-title {
    color: #004d99;
    font-size: 2rem;
    border-bottom: 3px solid #004d99;
    padding-bottom: 0.5rem;
    margin-top: 0;
    margin-bottom: 1.5rem;
}

.link-list {
    list-style-type: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.link-list li a {
    display: block;
    background-color: #e9ecef;
    padding: 1rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    color: #343a40;
    font-weight: 600;
    transition: transform 0.3s ease, background-color 0.3s ease;
    border: 1px solid #dee2e6;
}

.link-list li a:hover {
    transform: translateY(-3px);
    background-color: #cfe2f3;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
}