/* Navigation Component - Main site navigation */

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) 0;
    margin-bottom: var(--space-12);
    border-bottom: 1px solid var(--color-border-subtle);
}

.nav-brand {
    font-weight: 600;
    font-size: var(--font-size-lg);
    color: var(--color-text) !important;
    text-decoration: none !important;
    letter-spacing: var(--letter-spacing-tight);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.nav-links a,
.nav-links button {
    color: var(--color-text-muted);
    text-decoration: none;
    background: none;
    border: none;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    cursor: pointer;
    padding: var(--space-2) 0;
    transition: color 0.15s ease;
    font-weight: 400;
}

.nav-links a:hover,
.nav-links button:hover {
    color: var(--color-text);
}

/* Folder Navigation */
.nav-folder {
    position: relative;
    display: inline-block;
}

.nav-folder-name {
    color: var(--color-text-muted);
    text-decoration: none;
    background: none;
    border: none;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    cursor: pointer;
    padding: var(--space-2) 0;
    transition: color 0.15s ease;
    font-weight: 400;
    position: relative;
    padding-right: var(--space-4);
}

.nav-folder-name:hover {
    color: var(--color-text);
}

.nav-folder-name:after {
    content: '▼';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.7em;
    transition: transform 0.2s ease;
}

.nav-folder-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-background-subtle);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-2);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1000;
    box-shadow: var(--shadow-md);
}

.nav-folder-dropdown a {
    display: block;
    padding: var(--space-2) var(--space-3);
    color: var(--color-text-muted);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.nav-folder-dropdown a:hover {
    background: var(--color-background-muted);
    color: var(--color-text);
}

/* Desktop hover behavior */
@media (min-width: 769px) {
    .nav-folder:hover .nav-folder-dropdown {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .nav-folder:hover .nav-folder-name:after {
        transform: translateY(-50%) rotate(180deg);
    }
}

/* Mobile click behavior */
@media (max-width: 768px) {
    .nav-folder.open .nav-folder-dropdown {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .nav-folder.open .nav-folder-name:after {
        transform: translateY(-50%) rotate(180deg);
    }
    
    .nav {
        flex-direction: column;
        gap: var(--space-4);
        text-align: center;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}