/* Header styles */
.site-header {
    background-color: var(--gray-dark);
    color: var(--white);
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
    animation: fadeIn var(--animation-duration) ease-out forwards;
}

.site-header h1 {
    color: var(--primary);
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 3rem;
}

nav a {
    color: var(--white);
    font-weight: bold;
    padding: 0.75rem 1.5rem;
    border-radius: 30px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.9rem;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

nav a:hover {
    color: var(--primary);
}

nav a:hover::after {
    width: 80%;
}