:root{--color-primary:#2563eb;--color-primary-dark:#1d4ed8;--color-primary-light:#3b82f6;--color-success:#10b981;--color-warning:#f59e0b;--color-error:#ef4444;--color-gray-50:#f9fafb;--color-gray-100:#f3f4f6;--color-gray-200:#e5e7eb;--color-gray-300:#d1d5db;--color-gray-400:#9ca3af;--color-gray-500:#6b7280;--color-gray-600:#4b5563;--color-gray-700:#374151;--color-gray-800:#1f2937;--color-gray-900:#111827;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--shadow-sm:0 1px 2px rgba(0,0,0,0.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,0.1);--shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,sans-serif;background:var(--color-gray-50);color:var(--color-gray-900);line-height:1.5;font-size:14px}.app-layout{min-height:100vh;display:flex;flex-direction:column}.app-header{background:white;border-bottom:1px solid var(--color-gray-200);padding:0 24px;height:64px;justify-content:space-between;position:-webkit-sticky;position:sticky;top:0;z-index:100}.app-header,.app-logo{display:flex;align-items:center}.app-logo{gap:12px;text-decoration:none;color:inherit}.app-logo-icon{width:32px;height:32px;background:var(--color-primary);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:white;font-weight:700;font-size:16px}.app-logo-img{height:32px;width:auto;object-fit:contain}.app-logo-text{font-size:18px;font-weight:600;color:var(--color-gray-900)}.app-logo-text span{color:var(--color-gray-400);font-weight:400}.app-main{flex:1 1;padding:32px;max-width:1400px;margin:0 auto;width:100%}.card{background:white;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--color-gray-200)}.card-header{padding:20px 24px;border-bottom:1px solid var(--color-gray-100)}.card-title{font-size:16px;font-weight:600;color:var(--color-gray-900)}.card-subtitle{font-size:13px;color:var(--color-gray-500);margin-top:4px}.card-body{padding:24px}.platform-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));grid-gap:20px;gap:20px}.platform-card{display:flex;flex-direction:column;padding:24px;background:white;border:2px solid var(--color-gray-200);border-radius:var(--radius-lg);text-decoration:none;color:inherit;transition:all .2s ease;cursor:pointer}.platform-card:hover{border-color:var(--color-primary);box-shadow:var(--shadow-md);transform:translateY(-2px)}.platform-card-icon{width:48px;height:48px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:700;margin-bottom:16px}.platform-card-icon.bicom{background:#e0f2fe}.platform-card-icon.yeastar{background:#fef3c7}.platform-card-icon.threecx{background:#d1fae5}.platform-card-icon.netsapiens{background:#ede9fe}.platform-card-logo{width:36px;height:36px;object-fit:contain;border-radius:4px}.platform-card h3{font-size:18px;font-weight:600;margin-bottom:8px}.platform-card p{font-size:13px;color:var(--color-gray-500);margin-bottom:16px;flex:1 1}.platform-card-features{display:flex;flex-wrap:wrap;gap:8px}.platform-card-feature{font-size:11px;padding:4px 8px;background:var(--color-gray-100);border-radius:var(--radius-sm);color:var(--color-gray-600)}.page-header{margin-bottom:32px}.page-header-back{display:inline-flex;align-items:center;gap:8px;color:var(--color-gray-500);text-decoration:none;font-size:13px;margin-bottom:16px;transition:color .2s}.page-header-back:hover{color:var(--color-primary)}.page-title{font-size:28px;font-weight:700;color:var(--color-gray-900);margin-bottom:8px}.page-subtitle{font-size:15px;color:var(--color-gray-500)}.steps{display:flex;gap:8px;margin-bottom:32px}.step{display:flex;align-items:center;gap:12px;padding:12px 20px;background:white;border:1px solid var(--color-gray-200);border-radius:var(--radius-md);flex:1 1}.step.active{border-color:var(--color-primary);background:#eff6ff}.step.completed{border-color:var(--color-success);background:#ecfdf5}.step-number{width:28px;height:28px;border-radius:50%;background:var(--color-gray-200);color:var(--color-gray-600);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600}.step.active .step-number{background:var(--color-primary);color:white}.step.completed .step-number{background:var(--color-success);color:white}.step-content{flex:1 1}.step-title{font-size:14px;font-weight:600;color:var(--color-gray-900)}.step-desc{font-size:12px;color:var(--color-gray-500)}.form-group{margin-bottom:20px}.form-label{display:block;font-size:13px;font-weight:500;color:var(--color-gray-700);margin-bottom:6px}.form-hint{font-size:12px;color:var(--color-gray-500);margin-top:4px}.form-input{width:100%;padding:10px 14px;font-size:14px;border:1px solid var(--color-gray-300);border-radius:var(--radius-md);background:white;transition:border-color .2s,box-shadow .2s}.form-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(37,99,235,.1)}.form-input::placeholder{color:var(--color-gray-400)}.form-row{display:grid;grid-template-columns:repeat(2,1fr);grid-gap:16px;gap:16px}.form-select{width:100%;padding:10px 14px;border:1px solid var(--color-gray-300);background:white}.btn,.form-select{font-size:14px;border-radius:var(--radius-md);cursor:pointer}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;font-weight:500;border:none;transition:all .2s}.btn-primary{background:var(--color-primary);color:white}.btn-primary:hover{background:var(--color-primary-dark)}.btn-primary:disabled{background:var(--color-gray-300);cursor:not-allowed}.btn-secondary{background:white;color:var(--color-gray-700);border:1px solid var(--color-gray-300)}.btn-secondary:hover{background:var(--color-gray-50)}.btn-success{background:var(--color-success);color:white}.btn-lg{padding:14px 28px;font-size:15px}.btn-group{display:flex;gap:12px;margin-top:24px}.progress-container{padding:32px;text-align:center}.progress-spinner{width:48px;height:48px;border:3px solid var(--color-gray-200);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 24px}@keyframes spin{to{transform:rotate(1turn)}}.progress-title{font-size:18px;font-weight:600;margin-bottom:8px}.progress-subtitle{color:var(--color-gray-500);margin-bottom:24px}.progress-bar-container{background:var(--color-gray-200);border-radius:999px;height:8px;overflow:hidden;max-width:400px;margin:0 auto 16px}.progress-bar{height:100%;background:var(--color-primary);border-radius:999px;transition:width .3s ease}.progress-stats{display:flex;justify-content:center;gap:32px;margin-top:24px}.progress-stat{text-align:center}.progress-stat-value{font-size:24px;font-weight:700;color:var(--color-gray-900)}.progress-stat-label{font-size:12px;color:var(--color-gray-500);margin-top:4px}.data-table-container{overflow-x:auto}.data-table{width:100%;border-collapse:collapse;font-size:13px}.data-table th{text-align:left;padding:12px 16px;background:var(--color-gray-50);border-bottom:1px solid var(--color-gray-200);font-weight:600;color:var(--color-gray-700);white-space:nowrap}.data-table td{padding:12px 16px;border-bottom:1px solid var(--color-gray-100);color:var(--color-gray-600)}.data-table tr:hover td{background:var(--color-gray-50)}.data-table-empty{text-align:center;padding:48px;color:var(--color-gray-500)}.th-with-tooltip{display:inline-flex;align-items:center;gap:4px}.th-tooltip-wrap{position:relative}.th-tooltip-icon,.th-tooltip-wrap{display:inline-flex;align-items:center;flex-shrink:0}.th-tooltip-icon{justify-content:center;width:15px;height:15px;font-size:10px;font-weight:700;line-height:1;color:var(--color-gray-400);background:var(--color-gray-100);border:1px solid var(--color-gray-200);border-radius:50%;cursor:help}.th-tooltip-text{padding:8px 12px;font-size:12px;font-weight:400;line-height:1.4;white-space:normal;width:max-content;max-width:280px;color:#fff;background:var(--color-gray-800);border-radius:6px;box-shadow:0 4px 12px rgba(0,0,0,.15);z-index:10000;pointer-events:none}.th-tooltip-wrap:hover .th-tooltip-icon{color:var(--color-primary);background:var(--color-primary-100,#eff6ff);border-color:var(--color-primary-light)}.tabs{display:flex;gap:4px;border-bottom:1px solid var(--color-gray-200);margin-bottom:24px}.tab{padding:12px 20px;font-size:14px;font-weight:500;color:var(--color-gray-500);background:none;cursor:pointer;border:none;border-bottom:2px solid transparent;margin-bottom:-1px;transition:all .2s}.tab:hover{color:var(--color-gray-700)}.tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.tab-badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;font-size:11px;font-weight:600;background:var(--color-gray-200);color:var(--color-gray-600);border-radius:999px;margin-left:8px}.tab.active .tab-badge{background:var(--color-primary);color:white}.alert{padding:16px 20px;border-radius:var(--radius-md);margin-bottom:20px;display:flex;gap:12px}.alert-success{background:#ecfdf5;border:1px solid #a7f3d0;color:#047857}.alert-warning{background:#fffbeb;border:1px solid #fcd34d;color:#b45309}.alert-error{background:#fef2f2;border:1px solid #fecaca;color:#dc2626}.alert-info{background:#eff6ff;border:1px solid #bfdbfe;color:#1d4ed8}.entity-summary{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));grid-gap:12px;gap:12px;margin-bottom:24px}.entity-card{background:var(--color-gray-50);border-radius:var(--radius-md);padding:16px;text-align:center}.entity-card-count{font-size:28px;font-weight:700;color:var(--color-gray-900)}.entity-card-label{font-size:12px;color:var(--color-gray-500);margin-top:4px}.status-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;font-size:12px;font-weight:500;border-radius:999px}.status-badge.success{background:#ecfdf5;color:#047857}.status-badge.warning{background:#fffbeb;color:#b45309}.status-badge.error{background:#fef2f2;color:#dc2626}.status-badge.info{background:#eff6ff;color:#1d4ed8}.status-dot{width:6px;height:6px;border-radius:50%;background:currentColor}.toggle-group{display:flex;align-items:center;gap:12px;margin-bottom:20px}.toggle{position:relative;width:44px;height:24px;background:var(--color-gray-300);border-radius:12px;cursor:pointer;transition:background .2s;border:none;padding:0}.toggle.active{background:var(--color-primary)}.toggle:after{content:"";position:absolute;top:2px;left:2px;width:20px;height:20px;background:white;border-radius:50%;transition:transform .2s;box-shadow:var(--shadow-sm)}.toggle.active:after{transform:translateX(20px)}.toggle-label{font-size:14px;color:var(--color-gray-700)}.connection-modes{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));grid-gap:12px;gap:12px;margin-bottom:24px}.connection-mode{border:2px solid var(--color-gray-200);border-radius:var(--radius-md);padding:16px;cursor:pointer;transition:all .15s;background:white;text-align:left}.connection-mode:hover{border-color:var(--color-gray-300)}.connection-mode.selected{border-color:var(--color-primary);background:#eff6ff}.connection-mode h4{font-size:14px;font-weight:600;margin-bottom:4px}.connection-mode p{font-size:12px;color:var(--color-gray-500);line-height:1.4}.pbx-list{display:flex;flex-direction:column;gap:8px;margin-bottom:20px}.pbx-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border:1px solid var(--color-gray-200);border-radius:var(--radius-md);background:white;cursor:pointer;transition:all .15s}.pbx-item:hover{border-color:var(--color-gray-300)}.pbx-item.selected{border-color:var(--color-primary);background:#eff6ff}.pbx-item-checkbox{width:18px;height:18px;border:2px solid var(--color-gray-300);border-radius:4px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.pbx-item.selected .pbx-item-checkbox{background:var(--color-primary);border-color:var(--color-primary);color:white;font-size:12px}.pbx-item-details{flex:1 1}.pbx-item-name{font-size:14px;font-weight:600}.pbx-item-info{font-size:12px;color:var(--color-gray-500)}.select-all-bar{display:flex;align-items:center;justify-content:space-between;padding:8px 0;margin-bottom:8px}.select-all-btn{font-size:13px;color:var(--color-primary);cursor:pointer;background:none;border:none;font-weight:500}.select-all-btn:hover{text-decoration:underline}.how-it-works{margin-top:48px;padding-top:32px;border-top:1px solid var(--color-gray-200)}.how-it-works h2{font-size:20px;font-weight:600;margin-bottom:20px;color:var(--color-gray-800)}.how-it-works-steps{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));grid-gap:20px;gap:20px}.how-it-works-step{text-align:center;padding:20px}.how-it-works-step-number{width:36px;height:36px;background:#eff6ff;color:var(--color-primary);border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:14px;margin:0 auto 12px}.how-it-works-step h3{font-size:15px;font-weight:600;margin-bottom:6px;color:var(--color-gray-800)}.how-it-works-step p{font-size:13px;color:var(--color-gray-500);line-height:1.4}@media (max-width:768px){.app-main{padding:20px 16px}.platform-grid{grid-template-columns:1fr}.steps{flex-direction:column}.form-row{grid-template-columns:1fr}.entity-summary{grid-template-columns:repeat(3,1fr)}.connection-modes{grid-template-columns:1fr}}