.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: width var(--transition-slow);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
    box-shadow: var(--shadow-glow-primary);
}

.logo-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    display: block;
}
.logo-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: block;
}

.sidebar-nav {
    flex: 1;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--border-radius-sm);
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 3px;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 0 4px 4px 0;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.nav-item:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.04);
}

.nav-item.active {
    color: var(--primary-light);
    background: rgba(8, 145, 178, 0.08);
}
.nav-item.active::before { opacity: 1; }
.nav-item.active svg { color: var(--primary); }

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--gradient-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    color: white;
    flex-shrink: 0;
}

.user-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    display: block;
}
.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
    display: block;
}