:root{--primary:#4f46e5;--primary-hover:#4338ca;--primary-light:#eef2ff;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--info:#3b82f6;--bg:#f1f5f9;--sidebar-bg:#1e293b;--sidebar-text:#94a3b8;--sidebar-active:#fff;--sidebar-hover:#334155;--card-bg:#fff;--text:#1e293b;--text-secondary:#64748b;--border:#e2e8f0;--radius:8px;--shadow:0 1px 3px #0000001a, 0 1px 2px #0000000f;--shadow-lg:0 10px 15px #0000001a, 0 4px 6px #0000000d;--transition:.2s ease}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:14px;line-height:1.5}a{color:var(--primary);text-decoration:none}.app-layout{min-height:100vh;display:flex}.sidebar{background:var(--sidebar-bg);width:240px;color:var(--sidebar-text);z-index:100;flex-direction:column;flex-shrink:0;display:flex;position:fixed;top:0;bottom:0;left:0;overflow-y:auto}.sidebar-logo{color:#fff;border-bottom:1px solid 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8px;font-size:11px}.btn-icon{padding:8px}.btn:disabled{opacity:.5;cursor:not-allowed}.form-group{margin-bottom:16px}.form-label{color:var(--text-secondary);margin-bottom:6px;font-size:13px;font-weight:500;display:block}.form-input,.form-select,.form-textarea{border:1px solid var(--border);width:100%;transition:var(--transition);color:var(--text);background:#fff;border-radius:6px;padding:8px 12px;font-size:14px}.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #4f46e51a}.form-textarea{resize:vertical;min-height:80px}.form-row{grid-template-columns:1fr 1fr;gap:16px;display:grid}.form-row-3{grid-template-columns:1fr 1fr 1fr;gap:16px;display:grid}.form-actions{justify-content:flex-end;gap:8px;margin-top:20px;display:flex}.modal-overlay{z-index:1000;background:#00000080;justify-content:center;align-items:center;animation:.2s 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slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(100px)}to{opacity:1;transform:translate(0)}}@media (width<=768px){.sidebar{transform:translate(-100%)}.main-content{margin-left:0}.form-row,.form-row-3{grid-template-columns:1fr}}