/* Header styling */
header {
    background-color: #f8f9fa;
    padding: 1rem 2rem;
    border-bottom: 1px solid #dee2e6;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Navigation styling */
nav {
    display: flex;
    gap: 1.5rem;
}

nav a {
    color: #495057;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
    position: relative;
}

nav a:hover {
    color: #007bff;
}

/* Optional: Add underline animation on hover */
nav a::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #007bff;
    transition: width 0.3s ease;
}

nav a:hover::after {
    width: 100%;
}

/* Timestamp styling */
.timestamp {
    color: #6c757d;
    font-size: 0.875rem;
}

/* Mobile responsive */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    nav {
        gap: 1rem;
        flex-wrap: wrap;
    }
}