/* Sidebar Styles */

.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    z-index: 200;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-normal), width 0.2s ease;
}

/* Sidebar Logo */
.sidebar-logo {
    height: var(--header-height);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-lg);
    border-bottom: 1px solid var(--border-color-light);
    flex-shrink: 0;
    position: relative;
}

.sidebar-logo-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
}

.sidebar-logo-link:hover {
    opacity: 0.8;
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    overflow-y: auto;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition-fast);
    position: relative;
}

.sidebar-nav-item:hover {
    color: var(--color-primary);
    background-color: var(--bg-hover);
}

.sidebar-nav-item.active {
    color: var(--color-primary);
    background-color: rgba(26, 106, 255, 0.1);
}

.sidebar-nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 20px;
    background: var(--color-primary);
    border-radius: 0 2px 2px 0;
}

.sidebar-nav-item svg {
    flex-shrink: 0;
}

/* Collapse Toggle Button — always visible at bottom of nav, above user */
.sidebar-collapse-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    margin: 0;
    border: none;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-tertiary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.sidebar-collapse-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* Collapsed State */
.sidebar.collapsed {
    width: 68px;
}

.sidebar.collapsed .sidebar-logo-link span,
.sidebar.collapsed .sidebar-nav-item span,
.sidebar.collapsed .sidebar-user-name {
    display: none;
}

.sidebar.collapsed .sidebar-logo {
    justify-content: center;
    padding: 0 var(--spacing-sm);
}

.sidebar.collapsed .sidebar-logo-link {
    justify-content: center;
}

.sidebar.collapsed .sidebar-nav-item {
    justify-content: center;
    padding: var(--spacing-sm);
    position: relative;
}

.sidebar.collapsed .sidebar-nav-item::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(100% + 8px);
    top: 50%;
    transform: translateY(-50%);
    background: var(--text-primary);
    color: var(--bg-primary);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
    z-index: 300;
}

.sidebar.collapsed .sidebar-nav-item:hover::after {
    opacity: 1;
}

.sidebar.collapsed .sidebar-user {
    justify-content: center;
    padding: var(--spacing-sm);
}

.sidebar.collapsed .sidebar-user-info {
    display: none;
}

.sidebar.collapsed .sidebar-collapse-btn span {
    display: none;
}

.sidebar.collapsed .sidebar-collapse-btn {
    justify-content: center;
}

.sidebar.collapsed .sidebar-collapse-btn .collapse-icon {
    transform: rotate(180deg);
}

/* Sidebar User (bottom) */
.sidebar-user {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-color-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.sidebar-user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.sidebar-user-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
}

.sidebar-logout {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.sidebar-logout:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

/* Mobile Sidebar Overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 199;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.sidebar-overlay.active {
    opacity: 1;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.mobile-menu-btn:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

/* Desktop/Responsive Breakpoints */
@media (max-width: 1024px) {
    .sidebar {
        width: 220px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .sidebar-overlay {
        display: block;
    }

    .sidebar-overlay.active {
        display: block;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .sidebar-user-name {
        display: none;
    }

    .sidebar-logout {
        width: 40px;
        height: 40px;
    }

    .sidebar-collapse-btn {
        display: none;
    }
}