/* Sidebar Layout & Styling */
:root {
    --sidebar-bg: var(--theme-sidebar-bg);
    --sidebar-text: var(--theme-sidebar-text);
    --sidebar-text-hover: var(--theme-text-primary);
    --sidebar-active-bg: var(--theme-bg-tertiary);
    --sidebar-active-border: var(--theme-primary);
    --sidebar-width: 260px;
}

#sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: width 0.3s ease;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    overflow-y: auto;
    border-right: 1px solid var(--theme-border-color);
}

/* Logo Area */
#sidebar .logo-area {
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    color: var(--theme-text-primary);
    font-weight: 700;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--theme-border-color);
    box-sizing: border-box;
}

#sidebar .logo-icon {
    margin-right: 10px;
    color: var(--theme-primary);
}

/* System Switcher */
#sidebar .system-switcher-container {
    padding: 15px 10px 5px 10px;
    position: relative;
}

#sidebar .system-switcher-btn {
    background: rgba(255, 255, 255, 0.05);
    padding: 10px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    border: 1px solid var(--theme-border-light);
    transition: background 0.2s;
}

#sidebar .system-switcher-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Create Button */
#sidebar .create-btn-container {
    padding: 20px;
}

#sidebar .create-btn {
    width: 100%;
    background-color: var(--theme-primary);
    color: white;
    border: none;
    padding: 10px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background-color 0.2s;
}

#sidebar .create-btn:hover {
    background-color: var(--theme-primary-hover);
}

/* Navigation Groups */
#sidebar .nav-groups {
    flex-grow: 1;
    padding: 0 10px;
}

#sidebar .nav-group-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--theme-text-muted);
    margin: 20px 10px 10px;
    font-weight: 600;
}

#sidebar .nav-item {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    margin-bottom: 2px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    color: inherit;
}

#sidebar .nav-item:hover {
    background-color: var(--theme-bg-tertiary);
    color: var(--sidebar-text-hover);
}

#sidebar .nav-item.active {
    background-color: var(--sidebar-active-bg);
    color: var(--sidebar-text-hover);
    border-left: 3px solid var(--sidebar-active-border);
    padding-left: 9px;
}

#sidebar .nav-item.disabled {
    opacity: 0.5;
    pointer-events: none;
    cursor: not-allowed;
}

#sidebar .nav-icon {
    width: 20px;
    margin-right: 12px;
    text-align: center;
    font-size: 0.9rem;
}

#sidebar .nav-text {
    font-size: 0.9rem;
    font-weight: 500;
}

/* User Profile */
#sidebar .user-profile {
    padding: 15px;
    border-top: 1px solid var(--theme-border-color);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: auto;
}

#sidebar .avatar {
    width: 32px;
    height: 32px;
    background-color: var(--theme-bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--theme-text-primary);
    font-size: 0.8rem;
}

/* Dropdowns */
.dropdown-menu {
    position: absolute;
    background: var(--theme-dropdown-bg);
    border: 1px solid var(--theme-border-color);
    border-radius: 6px;
    padding: 5px 0;
    width: 220px;
    z-index: 1100;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    display: none;
}

.dropdown-menu.show {
    display: block;
}

.dropdown-item {
    display: block;
    padding: 8px 15px;
    color: var(--theme-text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    cursor: pointer;
}

.dropdown-item:hover {
    background-color: var(--theme-bg-tertiary);
}

.dropdown-item.danger {
    color: var(--theme-danger);
}

.dropdown-item.danger:hover {
    background-color: rgba(220, 53, 69, 0.1);
}