:root{--primary: #2563EB;--primary-light: #3B82F6;--primary-dark: #1D4ED8;--bg: #F1F5F9;--card: #FFFFFF;--text: #1E293B;--text-muted: #64748B;--success: #10B981;--warning: #F59E0B;--danger: #EF4444;--border: #E2E8F0}*,*:before,*:after{box-sizing:border-box}body{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;background-color:var(--bg);color:var(--text);margin:0;padding:0;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.layout-container{display:flex;min-height:100vh;background:var(--bg);position:relative;width:100%}.sidebar{width:260px;background:#0f172a;color:#fff;display:flex;flex-direction:column;flex-shrink:0;transition:transform .3s cubic-bezier(.4,0,.2,1);z-index:100}.mobile-topbar{display:none;background:#0f172a;color:#fff;padding:12px 16px;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:90;box-shadow:0 2px 8px #00000026}.mobile-menu-btn{background:transparent;border:1px solid #334155;color:#fff;font-size:20px;padding:6px 12px;border-radius:6px;cursor:pointer;display:flex;align-items:center;justify-content:center}.sidebar-overlay{display:none}.main-content{flex:1;padding:32px;overflow-y:auto;min-width:0;width:100%}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.5rem}.responsive-grid-2{display:grid;grid-template-columns:1fr 2fr;gap:20px}.responsive-grid-detail{display:grid;grid-template-columns:2fr 1fr;gap:20px}.table-container{width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch;margin-top:10px}.table-container table{min-width:500px}.card{background:var(--card);padding:1.5rem;border-radius:12px;box-shadow:0 1px 3px #0000000d,0 1px 2px #0000001a;box-sizing:border-box}.page-title{margin:0;color:#0f172a;font-size:1.75rem;font-weight:700}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 18px;border-radius:8px;font-weight:600;font-size:14px;cursor:pointer;border:none;transition:all .2s}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-secondary{background:#e2e8f0;color:#334155}.btn-secondary:hover{background:#cbd5e1}.btn-sm{padding:6px 12px;font-size:12px}@media (max-width: 768px){.layout-container{flex-direction:column}.mobile-topbar{display:flex}.sidebar{position:fixed;top:0;left:0;bottom:0;width:280px;height:100vh;transform:translate(-100%);box-shadow:4px 0 24px #0000004d}.sidebar.open{transform:translate(0)}.sidebar-overlay{display:block;position:fixed;top:0;left:0;right:0;bottom:0;background:#0f172a99;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);z-index:95;animation:fadeIn .2s ease-out}.main-content{padding:16px}.page-title{font-size:1.35rem}.stats-grid{grid-template-columns:1fr;gap:12px}.responsive-grid-2,.responsive-grid-detail{grid-template-columns:1fr}.card{padding:1rem}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}