:root{--primary:#2563eb;--primary-hover:#1d4ed8;--bg-body:#f8fafc;--bg-card:#fff;--text-main:#0f172a;--text-secondary:#64748b;--border:#e2e8f0;--success:#10b981;--danger:#ef4444;--warning:#f59e0b}*{box-sizing:border-box;padding:0;margin:0}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg-body);color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.layout{display:flex;min-height:100vh}.sidebar{width:250px;background:var(--bg-card);border-right:1px solid var(--border);padding:24px;display:flex;flex-direction:column;position:fixed;height:100vh}.sidebar-logo{font-size:20px;font-weight:700;color:var(--text-main);margin-bottom:32px;gap:8px}.nav-item,.sidebar-logo{display:flex;align-items:center}.nav-item{padding:10px 12px;color:var(--text-secondary);border-radius:6px;margin-bottom:4px;font-weight:500;transition:all .2s}.nav-item.active,.nav-item:hover{background:#eff6ff;color:var(--primary)}.main-content{flex:1 1;margin-left:250px;padding:32px}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px}.page-title{font-size:24px;font-weight:700;color:var(--text-main)}.subtitle{color:var(--text-secondary);margin-top:4px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:24px;margin-bottom:24px;box-shadow:0 1px 2px rgba(0,0,0,.05)}.grid-cols-4{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:24px;gap:24px}.grid-cols-2{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:24px;gap:24px}.stat-label{font-size:14px;color:var(--text-secondary);font-weight:500;margin-bottom:8px}.stat-value{font-size:28px;font-weight:700;color:var(--text-main)}.stat-trend{font-size:12px;margin-top:4px;display:flex;align-items:center;gap:4px}.trend-up{color:var(--success)}.trend-down{color:var(--danger)}.btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;background:var(--primary);color:#fff;border:none;border-radius:6px;font-weight:500;font-size:14px;cursor:pointer;transition:background .2s}.btn:hover{background:var(--primary-hover)}.btn-secondary{background:#fff;border:1px solid var(--border);color:var(--text-main)}.btn-secondary:hover{background:#f8fafc}.btn-danger{background:#fff;border:1px solid #fee2e2;color:var(--danger)}.btn-danger:hover{background:#fef2f2}table{width:100%;border-collapse:collapse}th{text-align:left;padding:12px 16px;font-size:12px;font-weight:600;text-transform:uppercase;color:var(--text-secondary);background:#f8fafc}td,th{border-bottom:1px solid var(--border)}td{padding:16px;color:var(--text-main);font-size:14px}tr:last-child td{border-bottom:none}tr:hover td{background:#f8fafc}.badge{display:inline-flex;padding:2px 8px;border-radius:12px;font-size:12px;font-weight:500}.badge-blue{background:#eff6ff;color:var(--primary)}.badge-green{background:#ecfdf5;color:var(--success)}.badge-gray{background:#f1f5f9;color:var(--text-secondary)}.form-group{margin-bottom:16px}label{display:block;font-size:14px;font-weight:500;color:var(--text-main);margin-bottom:6px}input,select,textarea{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:6px;font-size:14px;transition:border-color .2s}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(37,99,235,.1)}