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0;border-radius:var(--radius-md);color:var(--text-secondary);text-decoration:none;transition:all var(--transition-fast);position:relative;font-weight:400;font-size:.9rem}.nav-item:hover{background:var(--bg-tertiary);color:var(--text-primary)}.nav-item.active{background:#667eea1a;color:var(--primary-color);font-weight:600}.nav-item.active:before{content:"";position:absolute;right:0;top:50%;transform:translateY(-50%);width:3px;height:60%;background:var(--primary-gradient);border-radius:var(--radius-sm) 0 0 var(--radius-sm)}.nav-icon{font-size:1.1rem;min-width:26px;display:inline-flex;justify-content:center}.nav-label{margin-right:var(--space-sm)}.sidebar-footer{padding:var(--space-md);border-top:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;font-size:.75rem;color:var(--text-tertiary)}.admin-main{flex:1;display:flex;flex-direction:column;overflow:hidden}.admin-content{flex:1;overflow-y:auto;padding:var(--space-xl)}.page-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:var(--space-xl);flex-wrap:wrap;gap:var(--space-md)}.page-header h2{font-size:1.6rem;font-weight:700;color:var(--text-primary);margin:0;letter-spacing:-.02em}.theme-toggle{width:36px;height:36px;border-radius:var(--radius-full);border:1px solid var(--border-color);background:var(--bg-tertiary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-base);font-size:1rem}.theme-toggle:hover{border-color:var(--primary-color);box-shadow:var(--primary-glow);transform:scale(1.1)}.progress-track{width:100%;background:var(--bg-tertiary);border-radius:var(--radius-full);height:8px;overflow:hidden}.progress-bar{height:100%;border-radius:var(--radius-full);transition:width .5s ease}.empty-message{text-align:center;color:var(--text-tertiary);padding:var(--space-2xl);font-weight:300}@media(max-width:768px){.admin-sidebar{width:64px}.nav-label,.sidebar-header h2,.sidebar-footer span{display:none}.admin-content{padding:var(--space-md)}.stats-grid{grid-template-columns:1fr 1fr}.page-header{flex-direction:column}}@media(max-width:500px){.stats-grid{grid-template-columns:1fr}}