*{margin:0;padding:0;box-sizing:border-box}:root{--primary-color: #2563EB;--primary-dark: #1E40AF;--primary-light: #60A5FA;--success-color: #059669;--success-dark: #047857;--warning-color: #D97706;--danger-color: #DC2626;--danger-dark: #B91C1C;--text-primary: #0F172A;--text-secondary: #334155;--text-light: #64748B;--bg-primary: #FFFFFF;--bg-secondary: rgba(255, 255, 255, .7);--bg-tertiary: #F8FAFC;--bg-glass: rgba(255, 255, 255, .6);--border-color: #E2E8F0;--border-light: rgba(226, 232, 240, .5);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .05);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 10px 20px rgba(0, 0, 0, .12);--shadow-xl: 0 20px 40px rgba(0, 0, 0, .15);--shadow-glow: 0 0 20px rgba(37, 99, 235, .3);--radius-sm: 10px;--radius-md: 16px;--radius-lg: 20px;--radius-xl: 24px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .35s cubic-bezier(.4, 0, .2, 1);will-change:transform,opacity}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:linear-gradient(135deg,#f8fafb,#e9eef3);min-height:100vh;color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;position:relative;overflow-x:hidden;overflow-y:auto;display:flex;flex-direction:column;align-items:center;text-align:center}.is-hidden{display:none!important}body::-webkit-scrollbar{display:none}body{-ms-overflow-style:none}.background-decoration{position:fixed;top:0;left:0;right:0;bottom:0;z-index:0;pointer-events:none;overflow:hidden;opacity:.4}.circle{position:absolute;border-radius:50%;background:radial-gradient(circle,var(--primary-light) 0%,transparent 70%);opacity:.15;filter:blur(60px);animation:float 20s infinite ease-in-out}.circle-1{width:600px;height:600px;top:-200px;right:-200px;animation-delay:0s}.circle-2{width:500px;height:500px;bottom:-150px;left:-150px;animation-delay:7s}.circle-3{width:400px;height:400px;top:50%;left:50%;transform:translate(-50%,-50%);animation-delay:14s}@keyframes float{0%,to{transform:translate(0) scale(1)}33%{transform:translate(30px,-30px) scale(1.1)}66%{transform:translate(-20px,20px) scale(.9)}}.container{position:relative;z-index:1;max-width:1280px;width:100%;margin:0 auto;padding:24px 24px 8px;display:flex;flex-direction:column;flex:1}.connection-status-container{display:flex;justify-content:center;align-items:center;padding:20px 20px 10px;background:transparent;animation:slideDown .5s ease-out}header{background:var(--bg-glass);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);color:var(--text-primary);padding:28px 32px;border-top:1px solid var(--border-light);border-bottom:1px solid var(--border-light);border-left:none;border-right:none;border-radius:0;margin:0 0 32px;width:100%;max-width:100%;position:relative;box-shadow:var(--shadow-md);display:grid;grid-template-columns:auto 1fr auto;align-items:flex-start;gap:32px;transition:all var(--transition-base)}header:hover{box-shadow:var(--shadow-lg)}.logo-section{display:flex;flex-direction:column;gap:0}.logo-brand{display:flex;align-items:center;gap:16px;flex-wrap:nowrap}.logo-icon{width:52px;height:52px;background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 4px 16px #3b82f64d;transition:transform var(--transition-base);flex-shrink:0}.logo-icon:hover{transform:scale(1.05) rotate(5deg)}.logo-icon svg{width:30px;height:30px}.logo-text{display:flex;flex-direction:column;gap:2px}header h1{font-size:1.5rem;font-weight:600;margin:0;color:var(--text-primary);letter-spacing:-.5px;line-height:1.2}.logo-tagline{display:flex;flex-wrap:wrap;align-items:center;gap:4px 12px;margin:4px 0 0}.logo-tagline span{display:flex;align-items:center;font-size:.85rem;color:var(--text-secondary);font-weight:500;letter-spacing:.01em;white-space:nowrap}.logo-tagline span:not(:first-child):before{content:"•";color:var(--text-secondary);margin-right:6px}.subtitle{font-size:.875rem;color:var(--text-light);font-weight:400;margin:2px 0 0}.header-actions{display:flex;align-items:center;gap:12px;justify-self:end}.audit-dashboard-link{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;background:linear-gradient(135deg,#8b5cf61a,#3b82f61a);border:2px solid rgba(139,92,246,.3);border-radius:12px;color:var(--primary-color);font-size:.875rem;font-weight:600;text-decoration:none;transition:all var(--transition-base);box-shadow:0 2px 8px #8b5cf61a;white-space:nowrap}.audit-dashboard-link:hover{background:linear-gradient(135deg,#8b5cf633,#3b82f633);border-color:#8b5cf680;transform:translateY(-2px);box-shadow:0 4px 12px #8b5cf633}.audit-dashboard-link:active{transform:translateY(0)}.audit-dashboard-link svg{width:20px;height:20px;stroke:currentColor}.connection-status{display:flex;align-items:center;gap:12px;padding:14px 28px;background:var(--bg-primary);border-radius:30px;font-size:1rem;font-weight:600;border:2px solid var(--border-color);box-shadow:var(--shadow-md);transition:all var(--transition-base);white-space:nowrap}.status-dot{width:10px;height:10px;border-radius:50%;background:var(--text-light);transition:all var(--transition-base);animation:pulse-dot 2s infinite}.connection-status.connected{background:linear-gradient(135deg,var(--success-color),#059669);border-color:var(--success-color);color:#fff;box-shadow:0 4px 20px #10b9814d}.connection-status.connected .status-dot{background:#fff;box-shadow:0 0 8px #fffc}.connection-status.connected .status-text{color:#fff;font-weight:600}.connection-status.disconnected .status-dot{background:var(--danger-color);animation:none}.connection-status.status-connected{color:var(--success-color);font-weight:600}.connection-status.status-disconnected{color:var(--danger-color);font-weight:600}.connection-status.status-waiting{color:var(--warning-color);font-weight:600}.connection-status.status-joined{color:var(--primary-color);font-weight:600}.connection-status.status-default{color:var(--text-secondary);font-weight:500}.status-text{color:var(--text-secondary)}@keyframes pulse-dot{0%,to{opacity:1;transform:scale(1)}50%{opacity:.7;transform:scale(1.1)}}.status-banner{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;text-align:left;background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff;font-weight:500;font-size:.95rem;border-radius:var(--radius-md);width:fit-content;max-width:calc(100% - 32px);margin:0 auto 16px;box-shadow:var(--shadow-md);animation:slideDownBanner .4s cubic-bezier(.34,1.56,.64,1);white-space:pre-line;flex-direction:column;align-items:flex-start}.status-banner:not(:has(div)){flex-direction:row;align-items:center;text-align:center}.status-icon{animation:statusIconPulse 1.5s ease-in-out infinite}@keyframes statusIconPulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes slideDownBanner{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}.error-banner{padding:16px 24px;background:var(--danger-light);color:#991b1b;border:2px solid #FCA5A5;border-radius:var(--radius-md);margin-bottom:20px;font-weight:500;font-size:.95rem;display:flex;align-items:center;justify-content:space-between;gap:16px;box-shadow:var(--shadow-md);animation:slideDownBanner .4s cubic-bezier(.34,1.56,.64,1)}.error-banner .error-content{display:flex;align-items:center;gap:12px;flex:1}.error-banner .error-icon{width:22px;height:22px;color:var(--danger-color);flex-shrink:0}.error-banner .dismiss-btn{background:transparent;border:none;color:#dc2626;cursor:pointer;padding:4px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all var(--transition-fast)}.error-banner .dismiss-btn:hover{background:#dc26261a;transform:scale(1.1)}.error-banner .dismiss-btn svg{width:20px;height:20px}.mobile-warning{padding:16px 24px;background:linear-gradient(135deg,#fff7ed,#ffedd5);color:#92400e;border:2px solid #FED7AA;border-radius:var(--radius-md);margin-bottom:20px;font-weight:500;font-size:.95rem;display:none;align-items:flex-start;gap:16px;box-shadow:var(--shadow-md);animation:slideDownBanner .4s cubic-bezier(.34,1.56,.64,1)}.mobile-warning:not(.is-hidden){display:flex}.mobile-warning .warning-icon{color:#f59e0b;flex-shrink:0;margin-top:2px;stroke-width:2}.mobile-warning .warning-content{flex:1}.mobile-warning .warning-content strong{display:block;font-size:1rem;font-weight:600;color:#78350f;margin-bottom:4px}.mobile-warning .warning-content p{margin:0;font-size:.875rem;color:#92400e;line-height:1.5}.mobile-warning .dismiss-warning-btn{background:transparent;border:none;color:#d97706;cursor:pointer;padding:4px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:all var(--transition-fast);flex-shrink:0}.mobile-warning .dismiss-warning-btn:hover{background:#d9770626;transform:scale(1.1)}.mobile-warning .dismiss-warning-btn svg{width:16px;height:16px}main{flex:1;padding:0;display:flex;flex-direction:column;align-items:center;gap:32px;max-width:720px;margin:0 auto;width:100%}.card{background:transparent;border-radius:24px;padding:0;border:none;box-shadow:none;transition:all var(--transition-base);width:100%;max-width:700px;margin:0 auto 24px;overflow:visible;opacity:1;transform:translateY(0)}.card:hover{box-shadow:none;transform:none}.card-header{display:none}.step-number{width:44px;height:44px;background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.25rem;font-weight:600;flex-shrink:0;box-shadow:0 4px 12px #3b82f64d;transition:transform var(--transition-base)}.card:hover .step-number{transform:scale(1.1) rotate(5deg)}.card-title{flex:1}.card-title h2,.card-title h3{font-size:1.25rem;font-weight:600;color:var(--text-primary);margin-bottom:4px;letter-spacing:-.01em}.card-description{font-size:.875rem;color:var(--text-secondary);font-weight:400;margin:0}.card-content{padding:0;text-align:center}.input-group{margin-bottom:24px}.input-label{display:block;font-size:.875rem;font-weight:500;color:var(--text-primary);margin-bottom:10px}.input{width:100%;padding:14px 18px;font-size:1rem;font-family:inherit;border:2px solid var(--border-color);border-radius:12px;transition:all var(--transition-base);background:var(--bg-primary);color:var(--text-primary)}.input:hover{border-color:var(--primary-light)}.input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 4px #3b82f61a;transform:translateY(-1px)}.input::placeholder{color:var(--text-light)}#createRoomBtn,#joinRoomBtn,#roomIdInput,label[for=roomIdInput],.input-group{display:none}.button-group{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:20px}#status,.status-banner{display:none!important}.btn{padding:16px 32px;min-height:48px;font-size:1rem;font-weight:500;font-family:inherit;border:none;border-radius:14px;cursor:pointer;transition:transform var(--transition-fast),box-shadow var(--transition-fast);flex:1;min-width:160px;display:inline-flex;align-items:center;justify-content:center;gap:10px;position:relative;overflow:hidden;will-change:transform}.btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#fff3;transform:translate(-50%,-50%);transition:transform .4s ease,opacity .4s ease;opacity:0}.btn:hover:before{transform:translate(-50%,-50%) scale(3);opacity:1}.btn:hover:not(:disabled){transform:translateY(-3px);box-shadow:var(--shadow-lg)}.btn:active:not(:disabled){transform:translateY(-1px)}.btn:disabled{opacity:.5;cursor:not-allowed;filter:grayscale(.5)}.btn-icon{width:20px;height:20px;position:relative;z-index:1}.btn span{position:relative;z-index:1}.btn-primary{background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff;box-shadow:0 4px 14px #3b82f640}.btn-primary:hover:not(:disabled){box-shadow:var(--shadow-glow),var(--shadow-lg)}.btn-secondary{background:var(--bg-primary);color:var(--primary-color);border:2px solid var(--primary-color)}.btn-secondary:hover:not(:disabled){background:var(--primary-color);color:#fff}.btn-success{background:linear-gradient(135deg,var(--success-color) 0%,var(--success-dark) 100%);color:#fff;box-shadow:0 4px 14px #10b98140}.btn-success:hover:not(:disabled){box-shadow:0 0 20px #10b98166,var(--shadow-lg)}.btn-warning{background:linear-gradient(135deg,var(--warning-color) 0%,#D97706 100%);color:#fff;box-shadow:0 4px 14px #f59e0b40}.btn-warning:hover:not(:disabled){box-shadow:0 0 20px #f59e0b66,var(--shadow-lg)}.btn-danger{background:linear-gradient(135deg,var(--danger-color) 0%,var(--danger-dark) 100%);color:#fff;box-shadow:0 4px 14px #ef444440}.btn-danger:hover:not(:disabled){box-shadow:0 0 20px #ef444466,var(--shadow-lg)}.transfer-state{margin-top:16px;padding:12px 16px;background:linear-gradient(135deg,var(--bg-light) 0%,#f3f4f6 100%);border-radius:10px;font-size:.9rem;color:var(--text-secondary);text-align:center;font-weight:500;display:flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--border-color)}.transfer-state:empty{display:none;margin:0;padding:0;border:none}.transfer-icon{animation:statusIconPulse 1.5s ease-in-out infinite}.progress-section-inline{margin-top:16px;margin-bottom:0}.room-id-display{margin-top:24px;padding:32px;background:linear-gradient(135deg,var(--primary-color) 0%,var(--primary-dark) 100%);color:#fff;border-radius:20px;text-align:center;box-shadow:0 8px 24px #3b82f640;animation:slideDown .4s ease-out;display:none;flex-direction:column;align-items:center;gap:24px}.room-id-display[style*="display: block"]{display:flex!important}.share-link-helper{color:#fff!important;font-size:1.05rem;font-weight:500;margin:0 0 16px;text-align:center;animation:slideDown .4s ease;text-shadow:0 2px 8px rgba(0,0,0,.5);opacity:1!important}.room-link-section{width:100%;display:flex;flex-direction:column;align-items:center;gap:12px;padding-top:8px}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.share-link-container{animation:slideDown .5s ease;margin-top:24px}.generate-link-section{margin-top:20px;text-align:center;animation:slideDown .5s ease}.btn-large{padding:14px 28px;font-size:1.05rem;font-weight:600}.room-creation-section{animation:slideDown .5s ease;margin-top:24px;padding-top:24px;border-top:1px solid rgba(255,255,255,.1)}.room-id-value{font-size:.95rem;font-weight:600;word-break:keep-all;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:14px 20px;background:#ffffff26;border-radius:12px;border:1px solid rgba(255,255,255,.2);font-family:Inter,monospace;letter-spacing:.5px;text-align:center;margin-bottom:0;max-width:100%;cursor:pointer;transition:all .2s ease;position:relative}.room-id-value:hover{background:#ffffff40;border-color:#fff6;transform:translateY(-1px)}.room-id-value::-webkit-scrollbar{height:6px}.room-id-value::-webkit-scrollbar-track{background:transparent}.room-id-value::-webkit-scrollbar-thumb{background:#ffffff4d;border-radius:3px}.room-id-value::-webkit-scrollbar-thumb:hover{background:#ffffff80}.copy-room-btn{background:#fff3!important;border:1px solid rgba(255,255,255,.3);color:#fff;padding:12px 24px;font-size:.9rem;transition:all .3s ease;width:100%;max-width:200px}.copy-room-btn:hover:not(:disabled){background:#ffffff4d!important;transform:translateY(-2px);box-shadow:0 4px 12px #00000026}@keyframes spin{to{transform:rotate(360deg)}}.file-input-wrapper{margin-bottom:24px}.file-input{display:none}.file-input-label{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:56px 32px;background:var(--bg-tertiary);border:3px dashed var(--border-color);border-radius:var(--radius-lg);cursor:pointer;transition:all var(--transition-base);text-align:center;width:100%;position:relative;overflow:hidden}.file-input-label:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:radial-gradient(circle at center,rgba(59,130,246,.1) 0%,transparent 70%);opacity:0;transition:opacity var(--transition-base)}.file-input-label:hover{background:#3b82f60d;border-color:var(--primary-color);transform:scale(1.01);box-shadow:0 0 30px #3b82f633,var(--shadow-md)}.file-input-label:hover:before{opacity:1}.file-input-label:active{transform:scale(.99)}.upload-icon{width:64px;height:64px;color:var(--primary-color);margin-bottom:20px;stroke-width:1.5;transition:all var(--transition-base);filter:drop-shadow(0 4px 12px rgba(59,130,246,.2))}.file-input-label:hover .upload-icon{transform:translateY(-6px) scale(1.1);filter:drop-shadow(0 8px 20px rgba(59,130,246,.4))}.upload-text{font-size:1.125rem;font-weight:600;color:var(--text-primary);display:block;margin-bottom:8px;position:relative;z-index:1}.upload-hint{font-size:.95rem;color:var(--text-secondary);display:block;position:relative;z-index:1}.file-info{margin-bottom:24px;padding:18px 24px;background:linear-gradient(135deg,#3b82f614,#3b82f60a);border-radius:16px;font-size:.95rem;color:var(--text-primary);display:none;align-items:center;gap:8px;border:1px solid var(--border-color);font-weight:500;position:relative}.file-info-text{flex:1}.file-remove-btn{background:#ef44441a;border:1px solid rgba(239,68,68,.3);border-radius:50%;width:28px;height:28px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease;flex-shrink:0;padding:0;color:#ef4444}.file-remove-btn:hover{background:#ef444433;border-color:#ef444480;transform:scale(1.1)}.file-remove-btn svg{stroke-width:2.5}.file-icon{color:var(--primary-color);flex-shrink:0;stroke-width:2}.progress-card{background:var(--bg-secondary);border-color:var(--success-color);animation:slideDown .3s ease-out}.progress-card .card-header{background:transparent;border-bottom-color:var(--border-color)}.progress-bar-container{width:100%;height:32px;background:var(--bg-tertiary);border-radius:var(--radius-sm);overflow:hidden;margin-bottom:16px;position:relative;border:1px solid var(--border-color)}.progress-bar{height:100%;background:var(--success-color);transition:width .3s ease;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:500;font-size:.875rem;position:relative}.progress-shine{position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);animation:shine 2s infinite}@keyframes shine{to{left:100%}}.progress-text{text-align:center;font-weight:600;color:var(--success-color);font-size:1.25rem}footer{padding:16px 20px;background:transparent;border-top:1px solid var(--border-light);margin-top:auto;flex-shrink:0}.home-page footer{padding:12px 18px}.footer-content{display:flex;justify-content:center;gap:40px;margin-bottom:12px;flex-wrap:wrap}.home-page .footer-content{gap:24px;margin-bottom:8px}.footer-feature{display:flex;align-items:center;gap:10px;font-size:.875rem;color:var(--text-secondary);font-weight:400;transition:all var(--transition-fast)}.footer-feature:hover{color:var(--text-primary);transform:translateY(-2px)}.footer-feature svg{width:20px;height:20px;color:var(--primary-color);flex-shrink:0;stroke-width:2;transition:all var(--transition-fast)}.footer-feature:hover svg{transform:scale(1.1);filter:drop-shadow(0 2px 8px rgba(59,130,246,.4))}.footer-links{display:flex;justify-content:center;gap:24px;flex-wrap:wrap;margin:24px 0}.home-page .footer-links{gap:16px;margin:16px 0 12px}.footer-links a{color:var(--text-light);text-decoration:none;font-size:.9rem;font-weight:500;transition:all .2s ease;padding:8px 16px;border-radius:var(--radius-sm)}.home-page .footer-links a{font-size:.85rem;padding:6px 12px}.footer-links a:hover{color:var(--accent-color);background:#667eea1a;transform:translateY(-2px)}.footer-text{text-align:center;color:var(--text-light);font-size:.85rem;margin:0}.home-page .footer-text{font-size:.8rem}.file-receive-dialog{position:fixed;top:0;left:0;right:0;bottom:0;z-index:10000;display:flex;align-items:center;justify-content:center;animation:fadeIn .3s ease-out}.dialog-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:#000000b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.dialog-content{position:relative;background:#fff;border-radius:var(--radius-xl);padding:40px;max-width:500px;width:90%;box-shadow:0 20px 60px #0000004d;text-align:center;animation:slideUp .3s ease-out}.dialog-icon{width:80px;height:80px;margin:0 auto 24px;background:linear-gradient(135deg,var(--primary-color),var(--primary-dark));border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff}.dialog-content h3{font-size:1.75rem;font-weight:700;color:var(--text-primary);margin:0 0 16px}.dialog-message{font-size:1rem;color:var(--text-secondary);margin:0 0 20px}.dialog-file-info{background:var(--bg-secondary);border-radius:var(--radius-md);padding:20px;margin:0 0 20px;border:2px solid var(--border-light)}.dialog-file-info strong{display:block;font-size:1.1rem;color:var(--text-primary);margin-bottom:8px;word-break:break-all}.dialog-file-info span{display:block;font-size:.95rem;color:var(--text-secondary)}.dialog-question{font-size:1.05rem;font-weight:500;color:var(--text-primary);margin:0 0 24px}.dialog-actions{display:flex;gap:12px;justify-content:center}.dialog-actions .btn{flex:1;max-width:200px}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}.cancellation-modal{position:fixed;top:0;left:0;right:0;bottom:0;z-index:10001;display:flex;align-items:center;justify-content:center;animation:fadeIn .25s ease-out}.cancellation-modal .modal-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:#000000d9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.cancellation-content{position:relative;background:#fff;border-radius:var(--radius-xl);padding:40px;max-width:480px;width:90%;box-shadow:0 25px 70px #00000080,0 0 0 4px #fee2e2;text-align:center;animation:slideUpBounce .5s cubic-bezier(.34,1.56,.64,1)}@keyframes slideUpBounce{0%{opacity:0;transform:translateY(100px) scale(.8)}60%{transform:translateY(-10px) scale(1.02)}to{opacity:1;transform:translateY(0) scale(1)}}.cancellation-icon{width:100px;height:100px;margin:0 auto 20px;background:linear-gradient(135deg,#fee2e2,#fca5a5);border-radius:50%;display:flex;align-items:center;justify-content:center;animation:shake .6s ease-in-out;box-shadow:0 8px 25px #ef44444d}@keyframes shake{0%,to{transform:translate(0) rotate(0)}10%,30%,50%,70%,90%{transform:translate(-8px) rotate(-2deg)}20%,40%,60%,80%{transform:translate(8px) rotate(2deg)}}.cancellation-modal h2{color:#dc2626!important;margin:16px 0 12px!important;font-size:1.75rem!important;font-weight:700!important;text-shadow:0 2px 4px rgba(220,38,38,.1)}.cancellation-modal p{color:#374151!important;margin:0 0 28px!important;font-size:1.1rem!important;line-height:1.6;font-weight:500!important}.cancellation-modal .close-modal-btn{background:linear-gradient(135deg,#dc2626,#991b1b);border:none;color:#fff;font-size:1.1rem;font-weight:600;padding:16px 40px;border-radius:12px;cursor:pointer;transition:all .2s ease;box-shadow:0 4px 14px #dc262666}.cancellation-modal .close-modal-btn:hover{background:linear-gradient(135deg,#b91c1c,#7f1d1d);transform:translateY(-2px);box-shadow:0 8px 20px #dc262680}.cancellation-modal .close-modal-btn:active{transform:translateY(0);box-shadow:0 4px 14px #dc262666}.disconnect-modal{position:fixed;top:0;left:0;right:0;bottom:0;z-index:10001;display:flex;align-items:center;justify-content:center;animation:fadeIn .25s ease-out}.disconnect-modal .modal-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:#000000d9;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}.disconnect-content{position:relative;background:#fff;border-radius:var(--radius-xl);padding:40px;max-width:480px;width:90%;box-shadow:0 25px 70px #00000080,0 0 0 4px #fef3c7;text-align:center;animation:slideUpBounce .5s cubic-bezier(.34,1.56,.64,1)}.disconnect-icon{width:100px;height:100px;margin:0 auto 20px;background:linear-gradient(135deg,#fef3c7,#fde68a);border-radius:50%;display:flex;align-items:center;justify-content:center;animation:pulse 1.5s ease-in-out infinite;box-shadow:0 8px 25px #f59e0b4d}@keyframes pulse{0%,to{transform:scale(1);box-shadow:0 8px 25px #f59e0b4d}50%{transform:scale(1.05);box-shadow:0 8px 35px #f59e0b80}}.disconnect-modal h2{color:#f59e0b!important;margin:16px 0 12px!important;font-size:1.75rem!important;font-weight:700!important;text-shadow:0 2px 4px rgba(245,158,11,.1)}.disconnect-modal p{color:#374151!important;margin:0 0 28px!important;font-size:1.1rem!important;line-height:1.6;font-weight:500!important}.disconnect-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.disconnect-home-btn{background:linear-gradient(135deg,#3b82f6,#2563eb)!important;border:none!important;color:#fff!important;font-size:1.1rem!important;font-weight:700!important;padding:16px 32px!important;border-radius:12px!important;cursor:pointer!important;transition:all .2s ease!important;box-shadow:0 4px 14px #3b82f666!important;display:inline-flex!important;align-items:center!important;justify-content:center!important;gap:8px!important;text-shadow:none!important;opacity:1!important;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif!important}.disconnect-home-btn *{color:#fff!important;opacity:1!important}.disconnect-home-btn span{color:#fff!important;font-weight:700!important;opacity:1!important}.disconnect-home-btn svg{flex-shrink:0;opacity:1!important}.disconnect-home-btn:hover{background:linear-gradient(135deg,#2563eb,#1d4ed8);transform:translateY(-2px);box-shadow:0 8px 20px #3b82f680}.disconnect-home-btn:active{transform:translateY(0);box-shadow:0 4px 14px #3b82f666}.disconnect-stay-btn{background:#f3f4f6;border:2px solid #E5E7EB;color:#374151;font-size:1.1rem;font-weight:600;padding:16px 32px;border-radius:12px;cursor:pointer;transition:all .2s ease}.disconnect-stay-btn:hover{background:#e5e7eb;border-color:#d1d5db;transform:translateY(-2px)}.disconnect-stay-btn:active{transform:translateY(0);background:#d1d5db}@media (max-width: 768px){body{padding:8px}.container{padding:0 8px}header{padding:12px;grid-template-columns:1fr;gap:8px;margin-bottom:16px}.logo-section{gap:8px;max-width:100%;min-width:auto;align-items:center}.logo-brand{justify-content:center;flex-direction:row;align-items:center;text-align:center;gap:12px;flex-wrap:nowrap}.logo-icon{width:48px;height:48px}.logo-icon svg{width:28px;height:28px}.logo-text{align-items:center}header h1{font-size:1.25rem;text-align:center}.logo-tagline{justify-content:center;gap:2px 8px}.logo-tagline span{font-size:.8rem;line-height:1.3}.logo-tagline span:not(:first-child):before{margin-right:4px}.header-actions{justify-self:center;flex-direction:column;width:100%;gap:8px}.audit-dashboard-link{width:100%;justify-content:center;padding:8px 12px;font-size:.8rem}.connection-status{width:100%;justify-content:center;padding:8px 16px;font-size:.85rem}.connection-status-container{padding:12px 8px 8px}.subtitle{font-size:.8rem}.card{border-radius:var(--radius-md);margin-bottom:16px}.card-header{padding:16px 16px 12px;gap:10px}.step-number{width:36px;height:36px;font-size:1rem}.card-title h2,.card-title h3{font-size:1rem}.card-description{font-size:.8rem}.card-content{padding:16px 12px 20px}.button-group{flex-direction:column;margin-top:12px;gap:8px}.btn{width:100%;min-width:auto;padding:12px 20px;font-size:.95rem}.file-input-label{padding:32px 20px}.upload-icon{width:48px;height:48px;margin-bottom:12px}.upload-text{font-size:1rem;margin-bottom:4px}.upload-hint{font-size:.8rem}.file-info{margin-bottom:16px;padding:12px 16px;font-size:.85rem}.mobile-warning{padding:12px 16px;margin-bottom:12px;font-size:.85rem}.mobile-warning .warning-content strong{font-size:.9rem;margin-bottom:2px}.mobile-warning .warning-content p{font-size:.8rem}.room-id-display{padding:20px 16px;margin-top:16px;gap:16px}.room-id-value{font-size:.75rem;padding:10px 12px;max-width:100%;overflow-x:auto;word-break:break-all}.copy-room-btn{padding:10px 20px;font-size:.85rem;width:100%;max-width:200px}.transfer-state{margin-top:12px;padding:10px 12px;font-size:.85rem}.transfer-state:empty{display:none;margin:0;padding:0}main{gap:16px}.footer-content{flex-direction:column;gap:16px;align-items:center}footer{padding:20px 12px 16px}.cancellation-content,.disconnect-content{padding:32px 24px;max-width:95%}.cancellation-icon,.disconnect-icon{width:80px;height:80px;margin-bottom:16px}.cancellation-icon svg,.disconnect-icon svg{width:56px;height:56px}.cancellation-modal h2,.disconnect-modal h2{font-size:1.4rem!important}.cancellation-modal p,.disconnect-modal p{font-size:.95rem!important;margin-bottom:24px!important}.cancellation-modal .close-modal-btn,.disconnect-home-btn,.disconnect-stay-btn{font-size:1rem;padding:14px 28px}.disconnect-actions{flex-direction:column;width:100%;gap:10px}.disconnect-home-btn,.disconnect-stay-btn{width:100%}}@media (max-width: 480px){header{padding:20px 18px}header h1{font-size:1.125rem}.logo-tagline{font-size:.75rem}.logo-icon{width:44px;height:44px}.logo-icon svg{width:26px;height:26px}.connection-status{padding:8px 14px;font-size:.8rem}.card-header{padding:20px 18px 16px}.card-content{padding:20px 18px 24px}.file-input-label{padding:36px 20px}.upload-icon{width:48px;height:48px}.btn{font-size:.95rem;padding:13px 20px}.input{font-size:.95rem;padding:13px 16px}}.error-modal{position:fixed;top:0;left:0;width:100%;height:100%;background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:none;align-items:center;justify-content:center;z-index:10000;animation:fadeIn .2s ease}.error-modal:not(.is-hidden){display:flex!important}.error-modal-content{background:#fff;border-radius:16px;max-width:500px;width:90%;box-shadow:0 20px 60px #0000004d;animation:slideUp .3s cubic-bezier(.34,1.56,.64,1);overflow:hidden}.error-modal-header{padding:32px 32px 20px;text-align:center;background:linear-gradient(135deg,#fee2e2,#fecaca)}.error-icon{width:64px;height:64px;margin:0 auto 16px;background:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;color:#ef4444;box-shadow:0 4px 12px #ef444433}.error-modal-header h3{margin:0;font-size:1.5rem;font-weight:700;color:#991b1b}.error-modal-body{padding:24px 32px}.error-modal-body p{margin:0;font-size:1rem;line-height:1.6;color:var(--text-primary);white-space:pre-line}.error-modal-footer{padding:20px 32px 32px;text-align:center}.error-modal-btn{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff;border:none;padding:14px 32px;border-radius:10px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;box-shadow:0 4px 12px #ef44444d}.error-modal-btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px #ef444466}.error-modal-btn:active{transform:translateY(0)}.error-icon--info{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;box-shadow:0 6px 18px #3b82f64d}.error-modal-btn--muted{background:linear-gradient(135deg,#64748b,#475569);box-shadow:0 4px 12px #47556940}.error-modal-btn--muted:hover{box-shadow:0 6px 16px #47556959}.error-modal-btn--muted:active{transform:translateY(0)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(40px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}@media (max-width: 640px){.error-modal-content{max-width:90%}.error-modal-header,.error-modal-body,.error-modal-footer{padding-left:24px;padding-right:24px}.error-modal-header h3{font-size:1.25rem}.error-icon{width:56px;height:56px}}.security-options{margin-top:16px;padding:18px 20px;position:relative;border-radius:16px;background:#f8fafc;border:1px solid #E2E8F0;box-shadow:0 2px 6px #0f172a0a;overflow:hidden;animation:fadeInUp var(--transition-base)}.security-options:after{content:"";display:none}.security-section-header{position:relative;display:flex;gap:8px;align-items:center;margin-bottom:8px}.security-icon{width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,#fcd34d,#f59e0b);display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 2px 8px #f59e0b4d}.security-icon svg{width:18px;height:18px}.security-heading{display:flex;flex-direction:column;gap:4px}.security-title{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--text-secondary);display:flex;align-items:center;gap:6px;margin:0}.badge-soft{display:inline-flex;align-items:center;gap:4px;padding:1px 5px;border-radius:999px;background:#2563eb14;color:var(--primary-color);font-size:.6rem;font-weight:600;letter-spacing:.03em}.security-subtitle{margin:0;font-size:.95rem;color:var(--text-secondary);opacity:.9}.security-options-grid{position:relative;z-index:1;margin-top:20px;display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:16px}.security-status{margin-top:12px;margin-bottom:8px;padding:12px 16px;background:linear-gradient(135deg,#f0fdf4,#dcfce7);border:1px solid #86EFAC;border-radius:14px;display:flex;align-items:center;gap:8px;animation:fadeInUp var(--transition-base)}.security-status.is-hidden{margin:0;padding:0}.security-status .status-icon{color:#22c55e;flex-shrink:0}.security-status span{font-size:.9rem;color:#166534;font-weight:500;line-height:1.4}.security-checkbox{position:relative;display:block;cursor:pointer}.security-checkbox input{position:absolute;opacity:0;top:0;right:0;bottom:0;left:0;cursor:pointer}.security-checkbox-card{display:flex;align-items:flex-start;gap:12px;padding:18px 18px 18px 20px;border-radius:var(--radius-md);border:1px solid rgba(37,99,235,.12);background:#ffffffe0;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);box-shadow:0 8px 18px #2563eb14;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}.security-checkbox-card strong{font-size:.98rem;color:var(--text-primary)}.security-checkbox-card small{display:block;margin-top:4px;font-size:.85rem;color:var(--text-secondary);line-height:1.5}.security-checkbox-icon{width:40px;height:40px;border-radius:12px;background:#2563eb1a;display:flex;align-items:center;justify-content:center;font-size:1.3rem;box-shadow:inset 0 0 0 1px #2563eb2e}.security-checkbox input:checked+.security-checkbox-card{border-color:#2563eb66;box-shadow:0 14px 26px #2563eb2e;transform:translateY(-2px)}.security-checkbox input:focus-visible+.security-checkbox-card{outline:3px solid rgba(37,99,235,.35);outline-offset:2px}.security-checkbox:hover .security-checkbox-card{transform:translateY(-2px);box-shadow:0 12px 24px #0f172a1f}.password-input-section{position:relative;z-index:1;margin-top:20px;animation:fadeInUp var(--transition-base)}.password-label{display:block;font-size:.9rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;color:var(--text-secondary);margin-bottom:10px}.password-input-wrapper{display:flex;align-items:stretch;background:#ffffffeb;border:1px solid rgba(37,99,235,.18);border-radius:var(--radius-md);overflow:hidden;box-shadow:inset 0 0 0 1px #2563eb0d}.password-prefix{display:inline-flex;align-items:center;padding:0 14px;font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--primary-color);background:#2563eb1f;font-weight:600}.password-input-section .password-input{flex:1;border:none;background:transparent;padding:12px 16px;font-size:.95rem;color:var(--text-primary)}.password-input-section .password-input:focus{outline:none}.security-hints{position:relative;z-index:1;margin:22px 0 0;padding:14px 18px;list-style:none;display:flex;flex-wrap:wrap;gap:12px 20px;background:#ffffffb8;border-radius:var(--radius-md);border:1px dashed rgba(37,99,235,.25)}.security-hints li{display:flex;align-items:center;gap:10px;font-size:.9rem;color:var(--text-secondary)}.security-hints span:first-child{font-size:1.1rem}#passwordModal{position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:none;align-items:center;justify-content:center;z-index:10000;animation:fadeIn var(--transition-base)}.password-modal-content{background:var(--bg-primary);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);max-width:400px;width:90%;animation:slideUp var(--transition-slow);overflow:hidden}.password-modal-header{padding:24px;background:linear-gradient(135deg,var(--primary-color),var(--primary-dark));color:#fff;text-align:center}.password-modal-header h3{font-size:1.25rem;font-weight:600;margin:0;display:flex;align-items:center;justify-content:center;gap:10px}.password-modal-body{padding:24px}.password-modal-body p{color:var(--text-secondary);font-size:.95rem;margin-bottom:16px;text-align:center}.password-modal-input{width:100%;margin-top:16px;padding:12px 16px;border:2px solid var(--border-color);border-radius:var(--radius-sm);font-size:1rem;background:var(--bg-tertiary);color:var(--text-primary);transition:all var(--transition-base);text-align:center;letter-spacing:2px;font-weight:500}.password-modal-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #3b82f61a;background:var(--bg-primary)}.password-modal-footer{padding:16px 24px 24px;display:flex;gap:12px;justify-content:stretch}.password-modal-btn{flex:1;padding:12px 20px;border:none;border-radius:var(--radius-sm);font-size:.95rem;font-weight:600;cursor:pointer;transition:all var(--transition-base);display:flex;align-items:center;justify-content:center;gap:8px}.password-modal-btn.primary{background:var(--primary-color);color:#fff}.password-modal-btn.primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-md)}.password-modal-btn.secondary{background:var(--bg-tertiary);color:var(--text-secondary);border:1px solid var(--border-color)}.password-modal-btn.secondary:hover{background:var(--border-color);color:var(--text-primary)}.password-modal-btn:active{transform:translateY(0)}.verification-code-section{margin-top:0;padding:24px;background:linear-gradient(135deg,#3b82f61a,#2563eb0d);border:2px dashed var(--primary-color);border-radius:16px;text-align:center;animation:fadeInUp var(--transition-base)}.verification-code-section h3{font-size:1rem;font-weight:600;color:var(--text-primary);margin-bottom:12px;display:flex;align-items:center;justify-content:center;gap:8px}.verification-code{font-size:2rem;font-weight:700;color:var(--primary-color);letter-spacing:8px;margin:16px 0;font-family:Courier New,monospace;text-shadow:0 2px 4px rgba(59,130,246,.2)}.verification-hint{color:var(--text-secondary);font-size:.85rem;margin-top:12px;line-height:1.5}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 640px){.security-options,.verification-code-section{padding:16px;margin-top:16px}.security-section-header{align-items:flex-start}.security-options-grid{grid-template-columns:1fr;gap:12px}.security-checkbox-card{padding:14px 16px}.security-checkbox-card strong{font-size:.9rem}.security-checkbox-icon{width:32px;height:32px;font-size:1.1rem}.password-input-section{margin-top:16px}.password-input-wrapper{flex-direction:column;align-items:stretch}.password-prefix{justify-content:center;padding:10px 0;border-bottom:1px solid rgba(37,99,235,.15)}.password-input-section .password-input{width:100%}.password-modal-content{width:95%}.password-modal-header,.password-modal-body{padding:20px}.password-modal-footer{flex-direction:column}.verification-code{font-size:1.5rem;letter-spacing:4px}}