.tool-header{text-align:center;margin-bottom:40px}.header-badge{display:flex;justify-content:center;gap:12px;margin-bottom:24px;flex-wrap:wrap}.badge{background:linear-gradient(135deg, #1e293b, #0f172a);color:white;padding:6px 18px;border-radius:40px;font-size:0.75rem;font-weight:500;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.tool-header h1{font-size:2.2rem;font-weight:800;background:linear-gradient(135deg, #1e293b, #3b82f6);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:1rem}.port-stats{display:flex;justify-content:center;gap:24px;margin-bottom:32px;flex-wrap:wrap}.stat-card{background:white;border-radius:60px;padding:16px 28px;display:flex;align-items:center;gap:16px;box-shadow:0 4px 15px rgba(0,0,0,0.05);border:1px solid var(--gray-200)}.stat-icon{width:48px;height:48px;background:linear-gradient(135deg, #e0e7ff, #f0f4ff);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#3b82f6;font-size:1.3rem}.stat-info{text-align:left}.stat-value{display:block;font-size:1.5rem;font-weight:700;color:var(--gray-800)}.stat-label{font-size:0.7rem;color:var(--gray-500)}.filter-bar{background:var(--gray-50);border-radius:24px;padding:20px;margin-bottom:24px;display:flex;flex-wrap:wrap;gap:20px;align-items:flex-end}.filter-group{flex:1;min-width:150px}.filter-group label{display:block;font-size:0.7rem;font-weight:600;color:var(--gray-500);margin-bottom:6px}.filter-input,.filter-select{width:100%;padding:10px 14px;border:1px solid var(--gray-200);border-radius:12px;font-size:0.85rem;background:white;transition:all 0.2s}.filter-input:focus,.filter-select:focus{outline:none;border-color:#3b82f6;box-shadow:0 0 0 3px rgba(59,130,246,0.1)}.reset-btn{background:transparent;border:1px solid var(--gray-300);padding:10px 20px;border-radius:12px;cursor:pointer;transition:all 0.2s;font-size:0.85rem;display:inline-flex;align-items:center;gap:8px}.reset-btn:hover{background:var(--gray-100);border-color:#3b82f6;color:#3b82f6}.port-table-wrapper{background:white;border-radius:20px;overflow-x:auto;border:1px solid var(--gray-200);margin-bottom:24px}.port-table{width:100%;border-collapse:collapse;font-size:0.85rem}.port-table th,.port-table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--gray-200)}.port-table th{background:var(--gray-50);font-weight:600;color:var(--gray-700);position:sticky;top:0}.port-table tr:hover td{background:var(--gray-50)}.port-number{font-family:monospace;font-weight:600;color:#3b82f6}.protocol-badge{display:inline-block;padding:4px 10px;border-radius:30px;font-size:0.7rem;font-weight:500}.protocol-tcp{background:#d1fae5;color:#065f46}.protocol-udp{background:#fee2e2;color:#991b1b}.protocol-both{background:#e0e7ff;color:#3730a3}.risk-badge{display:inline-block;padding:4px 12px;border-radius:30px;font-size:0.7rem;font-weight:500}.risk-high{background:#fee2e2;color:#991b1b}.risk-medium{background:#fef3c7;color:#92400e}.risk-low{background:#d1fae5;color:#065f46}.port-categories{display:flex;justify-content:center;gap:32px;margin-bottom:24px;flex-wrap:wrap;padding:16px;background:var(--gray-50);border-radius:20px}.category-item{display:flex;align-items:center;gap:12px}.category-color{width:40px;height:12px;border-radius:6px}.category-color.well-known{background:#3b82f6}.category-color.registered{background:#10b981}.category-color.dynamic{background:#f59e0b}.category-info{display:flex;flex-direction:column}.category-name{font-weight:600;font-size:0.85rem;color:var(--gray-700)}.category-range{font-size:0.7rem;color:var(--gray-500)}.category-desc{font-size:0.65rem;color:var(--gray-400)}.info-footer{background:linear-gradient(135deg, #e0e7ff, #f0f4ff);border-radius:20px;padding:20px}.info-footer-header{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-weight:600;color:#1e3a8a}.info-footer-content{display:flex;flex-wrap:wrap;gap:24px}.tip-item{flex:1;display:flex;align-items:center;gap:12px;font-size:0.8rem;color:#1e3a8a;background:rgba(255,255,255,0.5);padding:10px 16px;border-radius:12px}.tip-item i{font-size:1rem}.empty-state{text-align:center;padding:60px;color:var(--gray-400)}.empty-state i{font-size:3rem;margin-bottom:16px}@media (max-width:768px){.filter-bar{flex-direction:column}.filter-group{width:100%}.reset-btn{width:100%;justify-content:center}.port-categories{flex-direction:column;align-items:flex-start}.info-footer-content{flex-direction:column}.port-table th,.port-table td{padding:10px 8px;font-size:0.75rem}.port-number{font-size:0.8rem}}