:root{--sidebar-bg: #1a1d23;--sidebar-border: #2d3039;--sidebar-text: #9ca3b0;--sidebar-text-active: #ffffff;--sidebar-hover: #252830;--sidebar-active: #2d3d5a;--sidebar-accent: #3b82f6;--sidebar-width: 220px;--content-bg: #f8f9fb;--card-bg: #ffffff;--border: #e5e7eb;--border-light: #f3f4f6;--text-primary: #111827;--text-secondary: #6b7280;--text-muted: #9ca3af;--accent: #3b82f6;--accent-light: #eff6ff;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--radius: 8px;--radius-sm: 4px;--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -1px rgba(0,0,0,.04)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;font-family:-apple-system,BlinkMacSystemFont,Segoe 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var(--sidebar-border);display:flex;flex-direction:column;overflow:hidden}.sidebar-header{padding:20px 16px 16px;display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--sidebar-border)}.sidebar-logo{font-size:22px}.sidebar-title{font-size:15px;font-weight:700;color:#fff;letter-spacing:.02em}.sidebar-nav{list-style:none;flex:1;overflow-y:auto;padding:8px 0}.sidebar-link{display:flex;align-items:center;gap:10px;padding:9px 16px;color:var(--sidebar-text);text-decoration:none;font-size:13.5px;font-weight:500;transition:background .12s,color .12s;border-radius:0;cursor:pointer}.sidebar-link:hover{background:var(--sidebar-hover);color:var(--sidebar-text-active)}.sidebar-link.active{background:var(--sidebar-active);color:var(--sidebar-text-active);border-left:3px solid var(--sidebar-accent);padding-left:13px}.nav-icon{font-size:16px;width:20px;text-align:center}.sidebar-footer{padding:12px 16px;border-top:1px solid var(--sidebar-border)}.sidebar-user{display:flex;flex-direction:column;gap:6px}.user-name{color:var(--sidebar-text);font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.logout-btn{background:none;border:1px solid var(--sidebar-border);color:var(--sidebar-text);font-size:12px;padding:5px 10px;border-radius:var(--radius-sm);cursor:pointer;transition:background .12s,color .12s;text-align:left}.logout-btn:hover{background:var(--sidebar-hover);color:var(--sidebar-text-active)}.content-area{flex:1;overflow-y:auto;background:var(--content-bg)}.page{padding:28px 32px;max-width:1400px}.page-title{font-size:22px;font-weight:700;color:var(--text-primary);margin-bottom:24px}.page-loading{padding:60px;text-align:center;color:var(--text-muted)}.page-error{padding:20px;background:#fef2f2;border:1px solid #fecaca;border-radius:var(--radius);color:var(--danger);margin-bottom:20px}.filters-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:20px}.period-btns{display:flex;gap:4px;flex-wrap:wrap}.period-btn{padding:6px 12px;border:1px solid var(--border);background:#fff;color:var(--text-secondary);font-size:12.5px;font-weight:500;border-radius:20px;cursor:pointer;transition:all .12s;white-space:nowrap}.period-btn:hover{border-color:var(--accent);color:var(--accent)}.period-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}.filter-sep{width:1px;height:28px;background:var(--border);margin:0 4px}.filter-select{padding:6px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);background:#fff;color:var(--text-primary);font-size:13px;cursor:pointer;outline:none}.filter-select:focus{border-color:var(--accent)}.filter-input{padding:6px 10px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;outline:none;color:var(--text-primary);width:200px}.filter-input:focus{border-color:var(--accent)}.stat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.stat-label{font-size:12px;font-weight:600;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.04em;margin-bottom:8px}.stat-value{font-size:26px;font-weight:700;color:var(--text-primary);line-height:1}.stat-sub{font-size:12px;color:var(--text-muted);margin-top:4px}.charts-row{display:flex;gap:16px;margin-bottom:24px;flex-wrap:wrap}.chart-card{background:var(--card-bg);border:1px solid 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900px){.sidebar{width:48px;min-width:48px}.sidebar-title,.sidebar-footer,.sidebar-header span:last-child{display:none}.sidebar-link{padding:10px;justify-content:center}.nav-icon{width:auto}.sidebar-link.active{padding-left:10px;border-left:none;border-bottom:2px solid var(--sidebar-accent)}.page{padding:16px}.charts-row{flex-direction:column}.stat-cards{grid-template-columns:repeat(2,1fr)}}