:root{--bg-page:#f4f6fb;--bg-card:#fff;--text-primary:#111827;--text-secondary:#6b7280;--accent:#2563eb;--accent-hover:#1d4ed8;--accent-light:#eff6ff;--border:#e5e7eb;--success:#059669;--success-bg:#ecfdf5;--error:#dc2626;--error-bg:#fef2f2;--warning:#d97706;--warning-bg:#fef3c7;--info:#2563eb;--info-bg:#eff6ff;--sidebar-bg:#111827;--sidebar-text:#9ca3af;--sidebar-text-active:#fff;--sidebar-hover:#ffffff1a;--shadow-card:0 1px 3px #0000001a, 0 12px 28px #1018280f;--shadow-card-hover:0 4px 6px #0000001a, 0 20px 40px #1018281a;--shadow-sm:0 1px 2px #0000000d;--radius-sm:8px;--radius-md:12px;--radius-lg:18px;--radius-xl:24px;--radius-full:999px;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--transition-fast:.15s ease;--transition-normal:.2s ease;color:var(--text-primary);background:var(--bg-page);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-height:100vh;margin:0}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}h1,h2,h3,h4,p{margin:0}.app-shell{grid-template-columns:260px minmax(0,1fr);min-height:100vh;display:grid}.sidebar{background:var(--sidebar-bg);color:#fff;padding:var(--space-6);gap:var(--space-6);flex-direction:column;display:flex}.sidebar-brand{gap:var(--space-1);flex-direction:column;display:flex}.sidebar-brand .eyebrow{color:var(--accent);letter-spacing:.1em;text-transform:uppercase;font-size:11px;font-weight:700}.sidebar-brand h1{color:#fff;font-size:22px;font-weight:700;line-height:1.2}.sidebar-nav{gap:var(--space-1);flex-direction:column;flex:1;display:flex}.sidebar-nav a{align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);border-radius:var(--radius-md);color:var(--sidebar-text);transition:background var(--transition-fast), color var(--transition-fast);font-size:15px;font-weight:500;display:flex}.sidebar-nav a:hover{background:var(--sidebar-hover);color:#fff}.sidebar-nav a.active{background:var(--sidebar-hover);color:var(--sidebar-text-active)}.sidebar-nav a svg{flex-shrink:0;width:20px;height:20px}.sidebar-footer{padding-top:var(--space-4);gap:var(--space-3);border-top:1px solid #ffffff1a;flex-direction:column;margin-top:auto;display:flex}.sidebar-profile{align-items:center;gap:var(--space-3);padding-bottom:var(--space-4);border-bottom:1px solid #ffffff1a;display:flex}.sidebar-user{align-items:center;gap:var(--space-3);display:flex}.sidebar-user-avatar{border-radius:var(--radius-full);background:var(--accent);color:#fff;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:14px;font-weight:600;display:flex}.sidebar-user-info{flex-direction:column;gap:2px;min-width:0;display:flex}.sidebar-user-name{color:#fff;white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:600;overflow:hidden}.sidebar-user-email{color:var(--sidebar-text);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.sidebar-logout{align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);color:var(--sidebar-text);cursor:pointer;transition:background var(--transition-fast), color var(--transition-fast);background:0 0;border:none;width:fit-content;font-size:14px;font-weight:500;display:flex}.sidebar-logout:hover{background:var(--sidebar-hover);color:#fff}.content-wrapper{flex-direction:column;min-height:100vh;display:flex;overflow:auto}.top-bar{padding:var(--space-5) var(--space-8);background:var(--bg-page);z-index:10;justify-content:space-between;align-items:center;display:flex;position:sticky;top:0}.top-bar-title{color:var(--text-primary);font-size:28px;font-weight:700}.top-bar-meta{align-items:center;gap:var(--space-4);display:flex}.top-bar-date{color:var(--text-secondary);font-size:14px;font-weight:500}.main-content{padding:0 var(--space-8) var(--space-8);flex:1}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:var(--space-6);transition:transform var(--transition-normal), box-shadow var(--transition-normal)}.card-hover:hover{box-shadow:var(--shadow-card-hover);transform:translateY(-2px)}.btn{justify-content:center;align-items:center;gap:var(--space-2);cursor:pointer;transition:background var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);white-space:nowrap;border:none;border-radius:10px;padding:10px 16px;font-size:14px;font-weight:600;display:inline-flex}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover)}.btn-secondary{color:var(--text-primary);border:1px solid var(--border);background:#fff}.btn-secondary:hover:not(:disabled){background:#f9fafb}.btn-ghost{color:var(--text-secondary);background:0 0}.btn-ghost:hover:not(:disabled){background:#f3f4f6}.btn-destructive{background:var(--error);color:#fff}.btn-destructive:hover:not(:disabled){background:#b91c1c}.btn-sm{padding:6px 12px;font-size:13px}.btn-lg{padding:14px 24px;font-size:16px}.input{width:100%;color:var(--text-primary);transition:border-color var(--transition-fast), box-shadow var(--transition-fast);background:#fff;border:1px solid #d1d5db;border-radius:10px;padding:10px 14px;font-size:14px}.input:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px #2563eb1a}.input::placeholder{color:#9ca3af}.input-error{border-color:var(--error)}.input-error:focus{box-shadow:0 0 0 3px #dc26261a}.label{color:var(--text-primary);margin-bottom:var(--space-2);font-size:14px;font-weight:500;display:block}.badge{align-items:center;gap:var(--space-1);border-radius:var(--radius-full);padding:4px 10px;font-size:12px;font-weight:600;line-height:1;display:inline-flex}.badge-success{background:var(--success-bg);color:var(--success)}.badge-warning{background:var(--warning-bg);color:var(--warning)}.badge-error{background:var(--error-bg);color:var(--error)}.badge-info{background:var(--info-bg);color:var(--info)}.empty-state{text-align:center;padding:var(--space-10) var(--space-6);justify-content:center;align-items:center;gap:var(--space-5);flex-direction:column;min-height:400px;display:flex}.empty-state-icon{color:#d1d5db;width:120px;height:120px}.empty-state-title{color:var(--text-primary);font-size:20px;font-weight:600}.empty-state-subtitle{color:var(--text-secondary);max-width:400px;font-size:16px;line-height:1.5}.empty-state-actions{gap:var(--space-3);margin-top:var(--space-2);display:flex}.metrics-grid{gap:var(--space-4);margin-bottom:var(--space-6);grid-template-columns:repeat(4,1fr);display:grid}.metric-card{gap:var(--space-3);flex-direction:column;display:flex}.metric-card-header{align-items:center;gap:var(--space-3);display:flex}.metric-card-icon{border-radius:var(--radius-md);background:var(--accent-light);width:40px;height:40px;color:var(--accent);justify-content:center;align-items:center;display:flex}.metric-card-icon svg{width:20px;height:20px}.metric-card-label{color:var(--text-secondary);font-size:14px;font-weight:500}.metric-card-value{color:var(--text-primary);font-size:32px;font-weight:700;line-height:1}.metric-card-trend{align-items:center;gap:var(--space-1);font-size:13px;font-weight:500;display:flex}.metric-card-trend.up{color:var(--success)}.metric-card-trend.down{color:var(--error)}.quick-actions-grid{gap:var(--space-4);grid-template-columns:repeat(3,1fr);display:grid}.quick-action-card{gap:var(--space-4);padding:var(--space-6);cursor:pointer;flex-direction:column;display:flex}.quick-action-card .card-icon{border-radius:var(--radius-md);background:var(--accent-light);width:48px;height:48px;color:var(--accent);justify-content:center;align-items:center;display:flex}.quick-action-card .card-icon svg{width:24px;height:24px}.quick-action-card h3{color:var(--text-primary);font-size:16px;font-weight:600}.quick-action-card p{color:var(--text-secondary);font-size:14px;line-height:1.5}.quick-action-card .link-arrow{align-items:center;gap:var(--space-1);color:var(--accent);margin-top:auto;font-size:14px;font-weight:600;display:inline-flex}.form-group{gap:var(--space-2);flex-direction:column;display:flex}.form-row{gap:var(--space-4);display:flex}.form-row .form-group{flex:1}.form-hint{color:var(--text-secondary);font-size:13px;line-height:1.5}.form-error{color:var(--error);margin-top:var(--space-1);font-size:13px}.alert{padding:var(--space-4);border-radius:var(--radius-md);align-items:flex-start;gap:var(--space-3);display:flex}.alert-success{background:var(--success-bg);color:var(--success);border:1px solid #a7f3d0}.alert-error{background:var(--error-bg);color:var(--error);border:1px solid #fecaca}.alert-warning{background:var(--warning-bg);color:var(--warning);border:1px solid #fde68a}.alert-info{background:var(--info-bg);color:var(--info);border:1px solid #bfdbfe}.page-header{margin-bottom:var(--space-6)}.page-header h2{color:var(--text-primary);font-size:28px;font-weight:700}.page-header p{color:var(--text-secondary);margin-top:var(--space-2);font-size:16px}.section-title{color:var(--text-primary);margin-bottom:var(--space-4);font-size:18px;font-weight:600}.skeleton{border-radius:var(--radius-sm);background:linear-gradient(90deg,#f3f4f6 25%,#e5e7eb 50%,#f3f4f6 75%) 0 0/200% 100%;animation:1.5s infinite skeleton-pulse}@keyframes skeleton-pulse{0%{background-position:200% 0}to{background-position:-200% 0}}.mobile-overlay{z-index:40;opacity:0;visibility:hidden;transition:opacity var(--transition-normal), visibility var(--transition-normal);background:#00000080;position:fixed;inset:0}.mobile-overlay.open{opacity:1;visibility:visible}.mobile-menu-btn{padding:var(--space-2);cursor:pointer;color:var(--text-primary);background:0 0;border:none;display:none}.mobile-menu-btn svg{width:24px;height:24px}@media (width<=1024px){.app-shell{grid-template-columns:72px minmax(0,1fr)}.sidebar{padding:var(--space-4) var(--space-3);align-items:center}.sidebar-brand h1,.sidebar-profile,.sidebar-user-info,.sidebar-nav a span{display:none}.sidebar-nav a{padding:var(--space-3);justify-content:center}.sidebar-footer{align-items:center}.sidebar-logout span{display:none}.metrics-grid,.quick-actions-grid{grid-template-columns:repeat(2,1fr)}.top-bar,.main-content{padding-left:var(--space-5);padding-right:var(--space-5)}}@media (width<=768px){.app-shell{grid-template-columns:1fr}.sidebar{z-index:50;width:260px;transition:transform var(--transition-normal);position:fixed;top:0;bottom:0;left:0;transform:translate(-100%)}.sidebar.open{transform:translate(0)}.sidebar-brand h1,.sidebar-profile,.sidebar-user-info,.sidebar-nav a span{display:block}.sidebar-nav a{padding:var(--space-3) var(--space-4);justify-content:flex-start}.sidebar-footer{align-items:stretch}.sidebar-logout span{display:inline}.mobile-menu-btn{display:flex}.metrics-grid,.quick-actions-grid{grid-template-columns:1fr}.top-bar{padding:var(--space-4) var(--space-4)}.top-bar-title{font-size:22px}.main-content{padding:0 var(--space-4) var(--space-6)}.form-row{flex-direction:column}}