.sidebar {
    display: flex !important; flex-direction: column !important; height: 100vh !important;
    max-height: 100vh !important; position: fixed !important; top: 0 !important; left: 0 !important;
    padding: 14px 10px !important; background: #fff !important; z-index: 100 !important;
    border-right: 1px solid #E2E8F0; width: 200px !important; transition: width 0.2s ease; overflow: hidden;
}
.sidebar.collapsed { width: 64px !important; padding: 14px 8px !important; }

.sidebar-top { display: flex; align-items: center; padding: 0 6px; margin-bottom: 16px; flex-shrink: 0; }
.sidebar-brand { display: flex; align-items: center; gap: 10px; text-decoration: none !important; color: var(--brand-600); font-size: 24px; min-height: 40px; }
.sidebar-brand-text { font-size: 16px; font-weight: 700; color: var(--text-neutral-primary); letter-spacing: -0.5px; }

.sidebar-label { font-size: 13px; font-weight: 500; white-space: nowrap; overflow: hidden; opacity: 1; transition: opacity 0.15s ease; }
.sidebar.collapsed .sidebar-label { opacity: 0; width: 0; overflow: hidden; display: none; }

.sidebar-nav-list { display: flex; flex-direction: column; gap: 2px; flex: 1; overflow-y: auto; overflow-x: hidden; width: 100%; padding-bottom: 8px; }
.sidebar .nav-item { padding-bottom: 0 !important; }

.sidebar .nav-item .nav-link {
    display: flex; align-items: center; gap: 10px; min-height: 38px; padding: 0 10px;
    cursor: pointer; color: var(--text-neutral-tertiary); font-size: 18px; text-decoration: none;
    border-radius: 8px; transition: all 0.15s ease; white-space: nowrap;
}
.sidebar .nav-item .nav-link:hover { background-color: #F1F5F9; color: var(--text-neutral-secondary); }
.sidebar .nav-item .nav-link.active {
    border-radius: 8px !important; background: linear-gradient(135deg, var(--brand-600), var(--brand-500)) !important;
    color: #fff !important; border: none !important; box-shadow: var(--shadow-brand);
}
.sidebar .nav-item .nav-link.active .sidebar-label { color: #fff; }

.sidebar.collapsed .nav-item .nav-link {
    justify-content: center; padding: 0; min-width: 44px; max-width: 44px;
    min-height: 44px; max-height: 44px; margin: 0 auto; border-radius: 10px;
}

.sidebar-bottom {
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    padding-top: 8px; border-top: 1px solid #F1F5F9; flex-shrink: 0;
}
.sidebar-bottom .nav-item { width: 100%; }
.sidebar-bottom .nav-item .nav-link { color: var(--text-neutral-tertiary); }

.sidebar-collapse-btn i { transition: transform 0.2s ease; }
.sidebar.collapsed .sidebar-collapse-btn i { transform: scaleX(-1); }

.sidebar-user-info {
    display: flex; justify-content: center; align-items: center; text-transform: uppercase;
    border-radius: 50%; min-width: 38px; max-width: 38px; min-height: 38px; max-height: 38px;
    background: linear-gradient(135deg, var(--brand-600), var(--brand-500));
    font-size: 11px; font-weight: 600; color: #fff; cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease; letter-spacing: 0.5px;
}
.sidebar-user-info:hover { transform: scale(1.05); box-shadow: var(--shadow-brand); }

.sidebar-user-dropdown {
    position: absolute; left: 50px; bottom: 0; min-width: 200px; border-radius: 12px;
    border: 1px solid #E2E8F0; box-shadow: var(--shadow-xl); background: #fff;
}
.sidebar-user-dropdown .dropdown-item { padding: 8px 16px; font-size: 13px; cursor: pointer; border-radius: 6px; margin: 2px 6px; transition: background-color 0.15s ease; }
.sidebar-user-dropdown .dropdown-item:hover { background-color: #F1F5F9; }
.sidebar-user-dropdown .dropdown-header { padding: 10px 16px; }

.main-content {
    margin-left: 200px; padding: 10px; min-height: 100vh; background: #F1F5F9;
    display: flex; flex-direction: row; transition: margin-left 0.2s ease;
}
.sidebar.collapsed ~ .main-content { margin-left: 64px; }