:root{--ws-primary:#0891b2;--ws-primary-dark:#0e7490;--ws-success:#10b981;--ws-danger:#ef4444;--ws-warning:#f59e0b;--ws-info:#8b5cf6;--bg-dark:#0f172a;--bg-card:#1e293b;--bg-hover:#334155}.tool-header{text-align:center;margin-bottom:40px;position:relative}.header-badge{display:flex;justify-content:center;gap:12px;margin-bottom:24px;flex-wrap:wrap}.badge{background:linear-gradient(135deg, var(--ws-primary), var(--ws-primary-dark));color:white;padding:6px 18px;border-radius:40px;font-size:0.75rem;font-weight:500;box-shadow:0 4px 12px rgba(8,145,178,0.25);transition:all 0.3s ease}.badge:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(8,145,178,0.35)}.tool-header h1{font-size:2.2rem;font-weight:800;background:linear-gradient(135deg, #0f172a, var(--ws-primary));-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:1rem}.stats-cards{display:flex;justify-content:center;gap:24px;margin-bottom:32px;flex-wrap:wrap}.stat-card{background:rgba(255,255,255,0.95);backdrop-filter:blur(10px);border-radius:40px;padding:16px 28px;display:flex;align-items:center;gap:16px;box-shadow:0 8px 25px rgba(0,0,0,0.08);border:1px solid rgba(8,145,178,0.1);transition:all 0.3s ease;cursor:pointer}.stat-card:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(8,145,178,0.15);border-color:rgba(8,145,178,0.3)}.stat-icon{width:52px;height:52px;background:linear-gradient(135deg, #cffafe, #e0f2fe);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--ws-primary);font-size:1.4rem;transition:all 0.3s ease}.stat-card:hover .stat-icon{transform:scale(1.05)}.stat-info{text-align:left}.stat-value{display:block;font-size:1.3rem;font-weight:700;color:var(--gray-800)}.stat-label{font-size:0.7rem;color:var(--gray-500);letter-spacing:0.5px}.stat-value.connected{color:#10b981;text-shadow:0 0 8px rgba(16,185,129,0.3)}.stat-value.disconnected{color:#ef4444}.stat-value.connecting{color:#f59e0b;animation:pulse 1.5s infinite}@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.6}}.ws-container{display:grid;grid-template-columns:360px 1fr;gap:24px;margin-bottom:24px}.config-section{display:flex;flex-direction:column;gap:20px}.config-card{background:white;border-radius:24px;padding:20px;border:1px solid var(--gray-200);box-shadow:0 4px 15px rgba(0,0,0,0.03);transition:all 0.3s ease}.config-card:hover{box-shadow:0 8px 25px rgba(0,0,0,0.08);border-color:rgba(8,145,178,0.2)}.config-card h3{font-size:0.9rem;margin-bottom:18px;color:var(--gray-700);display:flex;align-items:center;gap:8px;padding-bottom:10px;border-bottom:2px solid var(--gray-100)}.config-card h3 i{color:var(--ws-primary)}.url-input-group label{display:block;font-size:0.7rem;font-weight:600;color:var(--gray-500);margin-bottom:8px;text-transform:uppercase;letter-spacing:0.5px}.url-wrapper{display:flex;align-items:center;border:2px solid var(--gray-200);border-radius:16px;overflow:hidden;margin-bottom:12px;transition:all 0.2s ease}.url-wrapper:focus-within{border-color:var(--ws-primary);box-shadow:0 0 0 3px rgba(8,145,178,0.1)}.url-scheme{background:linear-gradient(135deg, #f8fafc, #f1f5f9);padding:10px 14px;font-size:0.8rem;font-family:monospace;font-weight:600;color:var(--gray-600);border-right:2px solid var(--gray-200)}.url-input{flex:1;border:none;padding:10px 14px;font-size:0.85rem;font-family:monospace;background:white}.url-input:focus{outline:none}.protocol-input label{display:block;font-size:0.7rem;font-weight:600;color:var(--gray-500);margin-bottom:8px;text-transform:uppercase}.protocol-field{width:100%;padding:10px 14px;border:2px solid var(--gray-200);border-radius:14px;font-size:0.85rem;transition:all 0.2s ease}.protocol-field:focus{outline:none;border-color:var(--ws-primary);box-shadow:0 0 0 3px rgba(8,145,178,0.1)}.conn-buttons{display:flex;gap:12px;margin-top:16px}.btn-connect,.btn-disconnect,.btn-reconnect{flex:1;padding:12px;border-radius:50px;font-weight:600;font-size:0.85rem;cursor:pointer;transition:all 0.3s ease;border:none;position:relative;overflow:hidden}.btn-connect{background:linear-gradient(135deg, #10b981, #059669);color:white;box-shadow:0 4px 12px rgba(16,185,129,0.3)}.btn-connect:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px rgba(16,185,129,0.4)}.btn-disconnect{background:linear-gradient(135deg, #ef4444, #dc2626);color:white;box-shadow:0 4px 12px rgba(239,68,68,0.3)}.btn-disconnect:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px rgba(239,68,68,0.4)}.btn-reconnect{background:linear-gradient(135deg, #f59e0b, #d97706);color:white;box-shadow:0 4px 12px rgba(245,158,11,0.3)}.btn-reconnect:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px rgba(245,158,11,0.4)}button:disabled{opacity:0.5;cursor:not-allowed;transform:none !important}.btn-connect::after,.btn-disconnect::after,.btn-reconnect::after{content:'';position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:rgba(255,255,255,0.3);transform:translate(-50%, -50%);transition:width 0.6s, height 0.6s}.btn-connect:active::after,.btn-disconnect:active::after,.btn-reconnect:active::after{width:200px;height:200px}.message-input-group label{display:block;font-size:0.7rem;font-weight:600;color:var(--gray-500);margin-bottom:8px;text-transform:uppercase}.format-buttons{display:flex;gap:10px;margin-bottom:16px}.format-btn{background:var(--gray-100);border:2px solid transparent;padding:8px 20px;border-radius:40px;font-size:0.75rem;font-weight:500;cursor:pointer;transition:all 0.2s ease}.format-btn.active{background:linear-gradient(135deg, var(--ws-primary), var(--ws-primary-dark));color:white;box-shadow:0 2px 8px rgba(8,145,178,0.3)}.format-btn:hover:not(.active){background:var(--gray-200);transform:translateY(-1px)}.message-input{width:100%;padding:14px;border:2px solid var(--gray-200);border-radius:18px;font-family:'Fira Code',monospace;font-size:0.85rem;resize:vertical;transition:all 0.2s ease}.message-input:focus{outline:none;border-color:var(--ws-primary);box-shadow:0 0 0 3px rgba(8,145,178,0.1)}.send-buttons{display:flex;gap:12px;margin-top:16px}.btn-send{flex:2;background:linear-gradient(135deg, var(--ws-primary), var(--ws-primary-dark));border:none;padding:12px;border-radius:50px;color:white;font-weight:600;cursor:pointer;transition:all 0.3s ease}.btn-send:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px rgba(8,145,178,0.4)}.btn-ping{flex:1;background:linear-gradient(135deg, var(--ws-info), #6d28d9);border:none;padding:12px;border-radius:50px;color:white;font-weight:600;cursor:pointer;transition:all 0.3s ease}.btn-ping:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px rgba(139,92,246,0.4)}.btn-clear{flex:1;background:var(--gray-100);border:2px solid var(--gray-200);padding:12px;border-radius:50px;cursor:pointer;font-weight:500;transition:all 0.2s ease}.btn-clear:hover{background:var(--gray-200);transform:translateY(-1px)}.advanced-options{display:flex;flex-direction:column;gap:14px}.checkbox-label{display:flex;align-items:center;gap:10px;cursor:pointer;font-size:0.85rem;padding:6px 0;transition:all 0.2s ease}.checkbox-label:hover{color:var(--ws-primary)}.checkbox-label input{display:none}.checkmark{width:20px;height:20px;border:2px solid var(--gray-400);border-radius:6px;display:inline-block;position:relative;transition:all 0.2s ease}.checkbox-label input:checked+.checkmark{background:var(--ws-primary);border-color:var(--ws-primary);box-shadow:0 0 0 3px rgba(8,145,178,0.2)}.checkbox-label input:checked+.checkmark::after{content:'\f00c';font-family:'Font Awesome 6 Free';font-weight:900;font-size:10px;color:white;position:absolute;top:50%;left:50%;transform:translate(-50%, -50%)}.heartbeat-setting{display:flex;align-items:center;gap:12px;margin-top:4px;padding-top:8px;border-top:1px solid var(--gray-200)}.heartbeat-setting label{font-size:0.8rem;font-weight:500;color:var(--gray-600)}.heartbeat-setting input{width:80px;padding:8px;border:2px solid var(--gray-200);border-radius:12px;text-align:center;transition:all 0.2s ease}.heartbeat-setting input:focus{outline:none;border-color:var(--ws-primary)}.log-section{background:#0a0c15;border-radius:24px;overflow:hidden;display:flex;flex-direction:column;box-shadow:0 8px 30px rgba(0,0,0,0.2);border:1px solid rgba(8,145,178,0.2)}.log-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;background:linear-gradient(135deg, #0f172a, #0a0c15);border-bottom:1px solid rgba(8,145,178,0.3)}.log-title{display:flex;align-items:center;gap:12px;color:#22d3ee;font-weight:600}.log-title i{font-size:1.2rem}.log-count{background:rgba(34,211,238,0.15);padding:2px 12px;border-radius:30px;font-size:0.7rem;font-weight:500;color:#22d3ee}.log-actions{display:flex;gap:8px}.log-btn{background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.1);color:#94a3b8;padding:8px 12px;border-radius:12px;cursor:pointer;transition:all 0.2s ease;font-size:0.75rem}.log-btn:hover{background:rgba(8,145,178,0.2);border-color:rgba(8,145,178,0.5);color:#22d3ee}.message-log{flex:1;min-height:900px;max-height:900px;overflow-y:auto;padding:16px;font-family:'Fira Code',monospace}.message-log::-webkit-scrollbar{width:6px}.message-log::-webkit-scrollbar-track{background:#1e293b;border-radius:3px}.message-log::-webkit-scrollbar-thumb{background:#0891b2;border-radius:3px}.message-log::-webkit-scrollbar-thumb:hover{background:#22d3ee}.log-placeholder{text-align:center;color:#475569;padding:80px 20px}.log-placeholder i{font-size:56px;margin-bottom:20px;color:#22d3ee;opacity:0.5}.log-placeholder p{margin-bottom:8px;font-size:0.9rem}.log-placeholder span{font-size:0.75rem}.log-entry{padding:12px 16px;margin-bottom:12px;border-radius:16px;animation:slideIn 0.25s ease;transition:all 0.2s ease}.log-entry:hover{transform:translateX(4px)}@keyframes slideIn{from{opacity:0;transform:translateX(-10px)}to{opacity:1;transform:translateX(0)}}.log-entry.sent{background:linear-gradient(135deg, rgba(8,145,178,0.12), rgba(8,145,178,0.06));border-left:3px solid #0891b2}.log-entry.received{background:linear-gradient(135deg, rgba(16,185,129,0.12), rgba(16,185,129,0.06));border-left:3px solid #10b981}.log-entry.system{background:linear-gradient(135deg, rgba(245,158,11,0.12), rgba(245,158,11,0.06));border-left:3px solid #f59e0b}.log-entry.error{background:linear-gradient(135deg, rgba(239,68,68,0.12), rgba(239,68,68,0.06));border-left:3px solid #ef4444}.log-time{color:#64748b;font-size:0.7rem;margin-bottom:6px;font-family:monospace}.log-direction{display:inline-block;padding:2px 10px;border-radius:20px;font-size:0.6rem;font-weight:600;margin-right:10px}.log-direction.sent{background:rgba(8,145,178,0.25);color:#22d3ee}.log-direction.received{background:rgba(16,185,129,0.25);color:#34d399}.log-content{word-break:break-all;white-space:pre-wrap;color:#e2e8f0;font-size:0.8rem;line-height:1.5}.log-footer{padding:12px 20px;background:#0f172a;border-top:1px solid rgba(8,145,178,0.2);display:flex;gap:24px;font-size:0.7rem;color:#64748b}.log-footer i{margin-right:6px;color:#0891b2}.public-servers{margin:20px 0}.divider{display:flex;align-items:center;gap:12px;margin-bottom:16px}.divider span{font-size:0.85rem;font-weight:600;color:var(--gray-600)}.divider::after{content:'';flex:1;height:1px;background:linear-gradient(90deg, var(--gray-200), transparent)}.server-buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:12px}.server-btn{background:linear-gradient(135deg, #f8fafc, #f1f5f9);border:1px solid var(--gray-200);padding:8px 20px;border-radius:50px;font-size:0.8rem;font-family:monospace;cursor:pointer;transition:all 0.2s ease}.server-btn:hover{background:linear-gradient(135deg, var(--ws-primary), var(--ws-primary-dark));border-color:var(--ws-primary);color:white;transform:translateY(-2px);box-shadow:0 4px 12px rgba(8,145,178,0.3)}.info-section{margin-top:20px}.info-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px;padding:20px;background:linear-gradient(135deg, #f8fafc, #f1f5f9);border-radius:24px}.info-item{display:flex;align-items:center;gap:10px;font-size:0.8rem;color:var(--gray-600);padding:8px 12px;border-radius:12px;transition:all 0.2s ease}.info-item:hover{background:white;transform:translateX(4px)}.info-item i{width:28px;height:28px;background:white;border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--ws-success)}@media (max-width:1024px){.info-grid{grid-template-columns:repeat(2, 1fr)}}@media (max-width:900px){.ws-container{grid-template-columns:1fr}.stats-cards{gap:16px}}@media (max-width:640px){.stat-card{padding:12px 20px}.info-grid{grid-template-columns:1fr}.conn-buttons,.send-buttons{flex-wrap:wrap}.format-buttons{flex-wrap:wrap}.server-buttons{justify-content:center}.stat-value{font-size:1.1rem}.stat-icon{width:40px;height:40px;font-size:1rem}}.btn-loading{position:relative;pointer-events:none;opacity:0.7}.btn-loading::before{content:'';position:absolute;width:16px;height:16px;border:2px solid white;border-top-color:transparent;border-radius:50%;animation:spin 0.8s linear infinite;left:50%;top:50%;transform:translate(-50%, -50%)}@keyframes spin{to{transform:rotate(360deg)}}