/* Sidebar Styles */

.sidebar {
    width: var(--sidebar-width);
    background-color: white;
    border-right: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition-slow);
    position: relative;
    overflow-y: auto;
}

.sidebar.collapsed {
    margin-left: calc(var(--sidebar-width) * -1);
}

/* Sidebar Toggle Button */
.sidebar-toggle {
    position: absolute;
    right: -40px;
    top: 1rem;
    width: 40px;
    height: 40px;
    background-color: white;
    border: 1px solid var(--gray-200);
    border-left: none;
    border-radius: 0 var(--radius) var(--radius) 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 10;
}

.sidebar-toggle:hover {
    background-color: var(--gray-50);
}

.sidebar-toggle i {
    color: var(--gray-600);
    transition: transform var(--transition-fast);
}

.sidebar.collapsed .sidebar-toggle i {
    transform: rotate(180deg);
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: 1.5rem 0;
}

.nav-section {
    margin-bottom: 2rem;
    padding: 0 1rem;
}

.nav-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    margin-bottom: 0.75rem;
    padding: 0 0.75rem;
}

.nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    margin-bottom: 0.25rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 0.75rem;
    color: var(--gray-700);
    font-weight: 500;
    border-radius: var(--radius);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    background-color: var(--gray-50);
    color: var(--primary-color);
}

.nav-link.active {
    background-color: var(--primary-color);
    color: white;
}

.nav-link.active:hover {
    background-color: var(--primary-dark);
    color: white;
}

.nav-link i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid var(--gray-200);
    text-align: center;
}

.sidebar-footer small {
    font-size: 0.75rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        top: var(--header-height);
        left: 0;
        height: calc(100vh - var(--header-height));
        z-index: 999;
        box-shadow: var(--shadow-lg);
        transform: translateX(-100%);
        margin-left: 0;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .sidebar.collapsed {
        transform: translateX(-100%);
    }
    
    .sidebar-toggle {
        position: fixed;
        top: calc(var(--header-height) + 1rem);
        left: 0;
        right: auto;
        border-radius: 0 var(--radius) var(--radius) 0;
        border: 1px solid var(--gray-200);
        border-left: none;
    }
    
    .sidebar.open ~ .content-area {
        margin-left: 0;
    }
}