/* Sidebar Navigation Styles */

.main-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    flex-shrink: 0;
    background-color: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border);
    padding: var(--spacing-xl) var(--spacing-md);
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 0 var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.sidebar-logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
    flex-shrink: 0;
}

.sidebar-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    margin: 0;
    line-height: 1.2;
}

.sidebar-divider {
    border: none;
    border-top: 2px solid var(--color-border);
    margin: 0 0 var(--spacing-lg) 0;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    flex: 1;
}

.sidebar-link {
    display: flex;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--color-text);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.sidebar-link:hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text);
}

.sidebar-link.active {
    background-color: #b5a3d9;
    color: white;
}

.sidebar-group {
    display: flex;
    flex-direction: column;
}

.sidebar-category {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--color-text);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
}

.sidebar-category:hover {
    background-color: var(--color-bg-tertiary);
}

.collapse-icon {
    transition: transform var(--transition-fast);
}

.sidebar-category.collapsed .collapse-icon {
    transform: rotate(-90deg);
}

.sidebar-submenu {
    display: flex;
    flex-direction: column;
    margin-left: var(--spacing-lg);
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
    overflow: hidden;
    max-height: 200px;
    transition: max-height var(--transition-fast);
}

.sidebar-submenu.collapsed {
    max-height: 0;
    margin-top: 0;
}

.sidebar-sublink {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text);
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.sidebar-sublink:hover {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text);
}

.sidebar-sublink.active {
    background-color: #b5a3d9;
    color: white;
    font-weight: var(--font-weight-medium);
}

.sidebar-external-link {
    gap: var(--spacing-sm);
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
}

.external-icon {
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    opacity: 1;
    stroke: var(--color-primary);
    transition: opacity var(--transition-fast);
}

.sidebar-sublink:hover .external-icon {
    opacity: 0.8;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 250px;
    padding: var(--spacing-md) var(--spacing-xl);
    padding-bottom: 100px;
}

.content-section {
    animation: fadeIn 0.3s ease-in-out;
}

.about-subsection {
    animation: fadeIn 0.3s ease-in-out;
}

/* Dark Mode Toggle */
.dark-mode-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    margin-top: auto;
    margin-bottom: -4;
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
    height: 40px;
    flex-shrink: 0;
}

.dark-mode-toggle:hover {
    background-color: var(--color-bg-hover);
}

.toggle-switch {
    position: relative;
    width: 48px;
    height: 24px;
    background-color: var(--color-border);
    border-radius: 12px;
    transition: background-color var(--transition-fast);
}

.toggle-switch.active {
    background-color: var(--color-primary);
}

.toggle-slider {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 20px;
    height: 20px;
    background-color: white;
    border-radius: 50%;
    transition: transform var(--transition-fast);
}

.toggle-switch.active .toggle-slider {
    transform: translateX(24px);
}

.toggle-icon {
    width: 16px;
    height: 16px;
    min-width: 16px;
    min-height: 16px;
    max-width: 16px;
    max-height: 16px;
    flex-shrink: 0;
    color: var(--color-text-secondary);
    display: block;
}

#sun-icon,
#moon-icon {
    width: 16px;
    height: 16px;
}

/* Responsive Design */
@media (max-width: 968px) {
    .sidebar {
        width: 200px;
    }

    .main-content {
        margin-left: 200px;
        padding: var(--spacing-lg) var(--spacing-xl);
    }

    .footer {
        margin-left: 200px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        position: static;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        padding: var(--spacing-md);
    }

    .main-content {
        margin-left: 0;
        padding: var(--spacing-md);
    }

    .footer {
        margin-left: 0;
    }
}