:root{--bg-dark: #0f172a;--bg-gradient-1: #4f46e5;--bg-gradient-2: #ec4899;--glass-surface: rgba(255, 255, 255, .08);--glass-border: rgba(255, 255, 255, .12);--glass-highlight: rgba(255, 255, 255, .2);--text-main: #f8fafc;--text-muted: #94a3b8;--primary: #6366f1;--primary-hover: #4f46e5;--radius-lg: 24px;--radius-md: 16px;--radius-sm: 12px;--shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, .5);--shadow-glow: 0 0 40px rgba(99, 102, 241, .15);font-family:Inter,system-ui,-apple-system,sans-serif}*,*:before,*:after{box-sizing:border-box}body{margin:0;background-color:var(--bg-dark);background-image:radial-gradient(at 0% 0%,rgba(79,70,229,.33) 0px,transparent 50%),radial-gradient(at 100% 0%,rgba(236,72,153,.33) 0px,transparent 50%),radial-gradient(at 100% 100%,rgba(59,130,246,.33) 0px,transparent 50%);background-attachment:scroll;color:var(--text-main);min-height:100vh;display:flex;flex-direction:column;overflow:hidden}@media(hover:hover)and (pointer:fine){body{background-attachment:fixed}}.app-container{flex:1;display:flex;align-items:center;justify-content:center;padding:20px;position:relative}.view-enter{animation:fadeScaleIn .4s cubic-bezier(.16,1,.3,1) forwards}.view-exit{animation:fadeScaleOut .3s cubic-bezier(.16,1,.3,1) forwards;position:absolute}.view-enter,.view-exit{will-change:transform,opacity;backface-visibility:hidden}@keyframes fadeScaleIn{0%{opacity:0;transform:scale(.95) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}@keyframes fadeScaleOut{0%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(1.05);pointer-events:none}}.glass-card{background:var(--glass-surface);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--glass-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg),var(--shadow-glow);padding:40px;width:100%;max-width:480px;text-align:center;position:relative;overflow:hidden}@media(hover:none)and (pointer:coarse){.glass-card{backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}}.glass-card.view-enter,.glass-card.view-exit{backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:0 18px 40px -12px #00000073}.glass-card:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--glass-highlight),transparent);opacity:.5}h2{font-size:24px;margin:0 0 24px;font-weight:600}p{color:var(--text-muted);line-height:1.6;margin:0 0 32px;font-size:15px}.btn{background:var(--glass-surface);border:1px solid var(--glass-border);color:var(--text-main);padding:14px 24px;border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:all .2s;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;width:100%}.btn:hover:not(:disabled){background:#ffffff1f;transform:translateY(-1px);border-color:var(--glass-highlight)}.btn:active:not(:disabled){transform:translateY(0)}.btn-primary{background:var(--primary);border-color:transparent;box-shadow:0 4px 12px #6366f14d}.btn-primary:hover:not(:disabled){background:var(--primary-hover);box-shadow:0 6px 16px #6366f166}.btn-icon{width:44px;height:44px;padding:0;border-radius:50%}.btn:disabled{opacity:.5;cursor:not-allowed}.role-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:24px}.role-card{background:#ffffff08;border:1px solid var(--glass-border);border-radius:var(--radius-md);padding:24px 16px;cursor:pointer;transition:all .2s;display:flex;flex-direction:column;align-items:center;gap:12px}.role-card:hover{background:#ffffff14;border-color:var(--primary);transform:translateY(-2px)}.role-icon{font-size:32px}.role-label{font-weight:600;color:var(--text-main)}.qr-container{background:#fff;padding:12px;border-radius:var(--radius-md);display:inline-block;margin:0 0 12px;cursor:pointer;-webkit-user-select:none;user-select:none}.qr-canvas{display:block}.qr-hint{margin:0 0 12px;font-size:12px;color:var(--text-muted)}.qr-zoom-overlay{position:fixed;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;padding:20px;background:#000000b8;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);z-index:9999}.qr-zoom-card{background:#fff;color:#0f172a;border-radius:16px;padding:14px;box-shadow:0 18px 50px #00000059;display:flex;flex-direction:column;align-items:center;max-width:92vw}.qr-zoom-header{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.qr-zoom-title{font-weight:700;font-size:14px}.qr-zoom-canvas{display:block}.qr-zoom-tip{margin-top:12px;font-size:12px;color:#0f172ab3}.qr-zoom-close{width:auto;padding:8px 12px;font-size:13px;background:#0f172a0f;border:1px solid rgba(15,23,42,.14);color:#0f172a;border-radius:12px;box-shadow:none}.qr-zoom-close:hover:not(:disabled){background:#0f172a1a;border-color:#0f172a38}.scanner-container{border-radius:var(--radius-md);overflow:hidden;position:relative;background:#000;margin-bottom:20px;aspect-ratio:1}.scanner-video{width:100%;height:100%;object-fit:cover}.scanner-overlay{position:absolute;top:0;right:0;bottom:0;left:0;border:2px solid rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center}.scanner-guide{width:70%;height:70%;border:2px dashed rgba(255,255,255,.6);border-radius:var(--radius-sm)}.transfer-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.transfer-list{display:flex;flex-direction:column;gap:12px;max-height:300px;overflow-y:auto;margin-bottom:20px;text-align:left}.file-item{background:#ffffff0d;border-radius:var(--radius-sm);padding:12px 16px;display:flex;align-items:center;gap:12px;width:fit-content;max-width:85%;margin:4px 0}.file-item.sent{align-self:flex-end;border-bottom-right-radius:4px;background:var(--primary);color:#fff;flex-direction:row-reverse}.file-item.received{align-self:flex-start;border-bottom-left-radius:4px;background:#ffffff1a}.file-item.sent .msg-bubble{background:transparent;padding:0}.file-item.sent .file-meta,.file-item.sent .file-status-text{color:#fffc}.file-info{flex:1;min-width:0}.file-name{font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:4px}.file-meta{font-size:12px;color:var(--text-muted);display:flex;justify-content:space-between}.progress-bar{height:4px;background:#ffffff1a;border-radius:2px;margin-top:8px;overflow:hidden}.progress-fill{height:100%;background:var(--primary);width:100%;transform-origin:left center;transform:scaleX(0);will-change:transform;transition:transform .12s linear}.tabs{display:flex;background:#0006;padding:6px;border-radius:var(--radius-md);margin-bottom:24px;border:1px solid var(--glass-border);gap:0;position:relative}.tab-btn{flex:1;padding:10px 0;text-align:center;border-radius:var(--radius-sm);color:var(--text-muted);cursor:pointer;font-size:14px;font-weight:600;transition:all .25s ease;position:relative;z-index:1}.tab-btn:hover{color:var(--text-main);background:#ffffff0d}.tab-btn.active{color:#fff;background:var(--glass-highlight);box-shadow:0 2px 8px #0003}.tab-btn.active:hover{background:var(--glass-highlight)}.code-area{width:100%;background:#0000004d;border:1px solid var(--glass-border);border-radius:var(--radius-sm);color:var(--text-main);padding:16px;font-family:SF Mono,Menlo,monospace;font-size:13px;line-height:1.5;resize:none;height:120px;margin-bottom:16px;transition:border-color .2s}.code-area:focus{outline:none;border-color:var(--primary);background:#0006}.code-area::placeholder{color:var(--text-muted);opacity:.5}.msg-bubble{background:#ffffff14;border-radius:12px;padding:12px;margin-top:4px;word-break:break-word;font-size:14px;line-height:1.5}:root.reduce-effects body{background-attachment:scroll}:root.reduce-effects .glass-card{backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:0 18px 40px -12px #00000073}:root.reduce-effects .view-enter,:root.reduce-effects .view-exit{animation:none}