:root{--primary:#6366f1;--primary-dark:#4f46e5;--primary-light:#818cf8;--success:#22c55e;--warning:#f59e0b;--danger:#ef4444;--info:#3b82f6;--bg:#ffffff;--bg-secondary:#f8fafc;--bg-tertiary:#f1f5f9;--border:#e2e8f0;--border-light:#f1f5f9;--nav-bg:rgba(255,255,255,0.95);--text:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--radius-sm:6px;--radius:10px;--radius-lg:16px;--radius-xl:24px;--shadow-sm:0 1px 3px rgba(0,0,0,0.06),0 1px 2px rgba(0,0,0,0.04);--shadow:0 4px 16px rgba(0,0,0,0.08);--shadow-lg:0 10px 40px rgba(0,0,0,0.12);--shadow-xl:0 20px 60px rgba(0,0,0,0.15);--font:"Noto Sans SC","Inter",-apple-system,BlinkMacSystemFont,sans-serif}html.dark{--bg:#0f172a;--bg-secondary:#1e293b;--bg-tertiary:#334155;--border:#334155;--border-light:#1e293b;--nav-bg:rgba(15,23,42,0.95);--text:#f8fafc;--text-secondary:#cbd5e1;--text-muted:#64748b}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;scroll-behavior:smooth}body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}button{cursor:pointer;border:none;background:none}button,input,select,textarea{font-family:var(--font)}.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 20px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;font-size:.9rem;font-weight:500;border-radius:var(--radius);border:none;cursor:pointer;transition:all .2s;box-shadow:0 2px 8px rgba(99,102,241,.3);text-decoration:none}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(99,102,241,.4)}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-secondary{display:inline-flex;align-items:center;justify-content:center;padding:10px 20px;background:var(--bg-tertiary);color:var(--text-secondary);font-size:.9rem;font-weight:500;border-radius:var(--radius);border:1px solid var(--border);cursor:pointer;transition:all .2s}.btn-secondary:hover{background:var(--border);color:var(--text)}.btn-sm{padding:6px 14px;font-size:.8rem}.btn-full{width:100%}.form-group{display:flex;flex-direction:column;gap:6px}.form-label{font-size:.875rem;font-weight:500;color:var(--text-secondary);display:flex;justify-content:space-between;align-items:center}.form-label-link{font-weight:400;color:var(--primary);font-size:.8rem}.form-label-link:hover{text-decoration:underline}.form-input{width:100%;padding:10px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:.9rem;color:var(--text);background:var(--bg);transition:border-color .2s,box-shadow .2s;outline:none}.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,.12)}.form-textarea{resize:vertical;min-height:100px}.form-hint{font-size:.8rem;color:var(--text-muted);margin-top:4px;line-height:1.5}.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:.75rem;font-weight:500}.badge-success{background:#dcfce7;color:#16a34a}.badge-warning{background:#fef3c7;color:#d97706}.badge-danger{background:#fee2e2;color:#dc2626}.badge-top{background:#ede9fe;color:#7c3aed}.loading-spinner{display:inline-block;width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.alert{padding:12px 16px;border-radius:var(--radius-sm);font-size:.9rem;margin-bottom:1rem}.alert-success{background:#dcfce7;color:#16a34a;border:1px solid #bbf7d0}.alert-error{background:#fee2e2;color:#dc2626;border:1px solid #fecaca}