@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--bg-primary: #f5f5f7;--bg-secondary: #ffffff;--bg-card: #ffffff;--bg-card-hover: #f0f0f5;--bg-elevated: #ffffff;--bg-overlay: rgba(0, 0, 0, .4);--text-primary: #1d1d1f;--text-secondary: #6e6e73;--text-tertiary: #aeaeb2;--accent: #6c5ce7;--accent-hover: #5a4bd1;--accent-light: rgba(108, 92, 231, .12);--accent-glow: rgba(108, 92, 231, .25);--success: #34c759;--error: #ff3b30;--warning: #ff9500;--border: rgba(0, 0, 0, .08);--border-strong: rgba(0, 0, 0, .15);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .06);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 30px rgba(0, 0, 0, .12);--shadow-glow: 0 0 20px var(--accent-glow);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 20px;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease;color-scheme:light}[data-theme=dark]{--bg-primary: #0a0a0f;--bg-secondary: #13131a;--bg-card: #1a1a24;--bg-card-hover: #22222e;--bg-elevated: #1e1e2a;--bg-overlay: rgba(0, 0, 0, .6);--text-primary: #f0f0f5;--text-secondary: #8e8e93;--text-tertiary: #636366;--accent: #a29bfe;--accent-hover: #b5afff;--accent-light: rgba(162, 155, 254, .15);--accent-glow: rgba(162, 155, 254, .3);--border: rgba(255, 255, 255, .08);--border-strong: rgba(255, 255, 255, .15);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .2);--shadow-md: 0 4px 12px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 30px rgba(0, 0, 0, .4);color-scheme:dark}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}html{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{background:var(--bg-primary);color:var(--text-primary);min-height:100dvh;transition:background var(--transition-normal),color var(--transition-normal)}#app,.app{min-height:100dvh;display:flex;flex-direction:column}.main{flex:1;max-width:720px;width:100%;margin:0 auto;padding:24px 16px 40px}.header{position:sticky;top:0;z-index:100;display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:var(--bg-secondary);border-bottom:1px solid var(--border);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}.header-left{display:flex;align-items:center;gap:12px}.header-logo{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-sm);background:var(--accent-light);color:var(--accent)}.header-logo-img{width:36px;height:36px;border-radius:var(--radius-sm)}.header-title h1{font-size:18px;font-weight:700;letter-spacing:-.3px}.header-device-name{font-size:12px;color:var(--text-secondary);font-weight:500}.header-right{display:flex;align-items:center;gap:12px}.connection-status{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:500;padding:4px 10px;border-radius:var(--radius-full)}.connection-status.connected{color:var(--success);background:#34c7591a}.connection-status.disconnected{color:var(--warning);background:#ff95001a}.theme-toggle{background:none;border:none;cursor:pointer;padding:0;display:flex;align-items:center}.theme-toggle-track{width:48px;height:26px;border-radius:var(--radius-full);position:relative;transition:background var(--transition-normal)}.theme-toggle-track.light{background:#e0e0e5}.theme-toggle-track.dark{background:#3a3a4a}.theme-toggle-thumb{position:absolute;top:3px;width:20px;height:20px;border-radius:50%;background:var(--bg-secondary);display:flex;align-items:center;justify-content:center;color:var(--text-primary);transition:transform var(--transition-normal);box-shadow:0 1px 3px #0003}.theme-toggle-track.light .theme-toggle-thumb{transform:translate(3px)}.theme-toggle-track.dark .theme-toggle-thumb{transform:translate(25px)}.device-list-container{animation:fadeInUp .3s ease}.device-list-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.device-list-header h2{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:600;color:var(--text-primary)}.device-count{font-size:13px;color:var(--text-secondary);font-weight:500;padding:2px 10px;background:var(--accent-light);color:var(--accent);border-radius:var(--radius-full)}.device-list{display:flex;flex-direction:column;gap:8px}.device-card{display:flex;align-items:center;gap:14px;width:100%;padding:14px 16px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);cursor:pointer;text-align:left;font-family:inherit;color:var(--text-primary);transition:all var(--transition-fast);box-shadow:var(--shadow-sm)}.device-card:hover{background:var(--bg-card-hover);border-color:var(--accent);box-shadow:var(--shadow-md),var(--shadow-glow);transform:translateY(-1px)}.device-card:active{transform:translateY(0)}.device-card-avatar{width:44px;height:44px;border-radius:var(--radius-sm);background:var(--accent-light);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex-shrink:0}.device-card-info{flex:1;min-width:0}.device-card-name{font-size:15px;font-weight:600;margin-bottom:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.device-card-details{display:flex;align-items:center;gap:6px;font-size:12px;color:var(--text-secondary)}.device-card-icon{display:flex;align-items:center;color:var(--text-tertiary)}.device-card-separator{color:var(--text-tertiary)}.device-card-arrow{color:var(--text-tertiary);transition:color var(--transition-fast),transform var(--transition-fast);flex-shrink:0}.device-card:hover .device-card-arrow{color:var(--accent);transform:translate(3px)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:50vh;gap:12px;animation:fadeInUp .4s ease}.empty-state-icon{color:var(--text-tertiary);margin-bottom:8px}.empty-state h2{font-size:18px;font-weight:600}.empty-state p{font-size:14px;color:var(--text-secondary);max-width:300px}.empty-state-url{margin-top:8px}.empty-state-url code{font-size:14px;font-weight:600;color:var(--accent);padding:8px 16px;background:var(--accent-light);border-radius:var(--radius-sm);font-family:SF Mono,Cascadia Code,Consolas,monospace;-webkit-user-select:all;user-select:all}.file-picker{animation:fadeInUp .3s ease}.file-picker-header{display:flex;align-items:center;gap:12px;margin-bottom:24px}.file-picker-header h2{font-size:18px;font-weight:600}.drop-zone{border:2px dashed var(--border-strong);border-radius:var(--radius-lg);padding:48px 24px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-normal);background:var(--bg-card)}.drop-zone:hover,.drop-zone.dragging{border-color:var(--accent);background:var(--accent-light)}.drop-zone.has-file{padding:16px 20px;cursor:default;border-style:solid;border-color:var(--border)}.drop-zone-content{display:flex;flex-direction:column;align-items:center;gap:12px;color:var(--text-secondary)}.drop-zone-content p{font-size:15px;font-weight:500;color:var(--text-primary)}.drop-zone-hint{font-size:13px;color:var(--text-tertiary)}.selected-file{display:flex;align-items:center;gap:14px;width:100%}.selected-file-icon{width:48px;height:48px;border-radius:var(--radius-sm);background:var(--accent-light);color:var(--accent);display:flex;align-items:center;justify-content:center;flex-shrink:0}.selected-file-info{flex:1;min-width:0}.selected-file-name{display:block;font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.selected-file-size{display:block;font-size:12px;color:var(--text-secondary);margin-top:2px}.file-input-hidden{display:none}.btn-primary{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;background:var(--accent);color:#fff;border:none;border-radius:var(--radius-sm);font-family:inherit;font-size:14px;font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.btn-primary:hover{background:var(--accent-hover);box-shadow:var(--shadow-glow)}.btn-secondary{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;background:transparent;color:var(--text-primary);border:1px solid var(--border-strong);border-radius:var(--radius-sm);font-family:inherit;font-size:14px;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.btn-secondary:hover{background:var(--bg-card-hover);border-color:var(--text-tertiary)}.btn-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--radius-sm);border:none;background:transparent;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);font-family:inherit}.btn-icon:hover{background:var(--bg-card-hover);color:var(--text-primary)}.btn-send{width:100%;justify-content:center;margin-top:16px;padding:14px;border-radius:var(--radius-md);font-size:15px}.btn-clear{flex-shrink:0}.transfer-progress{display:flex;flex-direction:column;gap:20px;padding:24px;background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border);box-shadow:var(--shadow-md);animation:fadeInUp .3s ease;margin-top:20vh}.transfer-progress-header{display:flex;align-items:center;justify-content:space-between}.transfer-status{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600}.transfer-progress.state-complete .transfer-status{color:var(--success)}.transfer-progress.state-error .transfer-status,.transfer-progress.state-cancelled .transfer-status{color:var(--error)}.transfer-file-info{display:flex;flex-direction:column;gap:4px}.transfer-file-name{font-size:15px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.transfer-target{font-size:13px;color:var(--text-secondary)}.progress-bar-container{display:flex;align-items:center;gap:12px}.progress-bar{flex:1;height:8px;background:var(--border);border-radius:var(--radius-full);overflow:hidden}.progress-bar-fill{height:100%;background:var(--accent);border-radius:var(--radius-full);transition:width .3s ease;position:relative}.progress-bar-fill:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.2),transparent);animation:shimmer 1.5s infinite}.progress-percent{font-size:13px;font-weight:600;color:var(--accent);min-width:40px;text-align:right}.transfer-stats{display:flex;justify-content:space-between;font-size:12px;color:var(--text-secondary);font-weight:500}.transfer-actions{display:flex;justify-content:flex-end;gap:8px}.receive-prompt-overlay{position:fixed;inset:0;background:var(--bg-overlay);display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px;animation:fadeIn .2s ease;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.receive-prompt{background:var(--bg-elevated);border-radius:var(--radius-lg);padding:28px;max-width:380px;width:100%;text-align:center;box-shadow:var(--shadow-lg);animation:scaleIn .25s ease}.receive-prompt-icon{width:56px;height:56px;border-radius:50%;background:var(--accent-light);color:var(--accent);display:flex;align-items:center;justify-content:center;margin:0 auto 16px}.receive-prompt h3{font-size:18px;font-weight:700;margin-bottom:16px}.receive-prompt-details{display:flex;flex-direction:column;gap:8px;margin-bottom:24px;text-align:left}.receive-prompt-row{display:flex;justify-content:space-between;align-items:center;padding:6px 0}.receive-prompt-label{font-size:13px;color:var(--text-secondary);font-weight:500}.receive-prompt-value{font-size:13px;font-weight:600;max-width:200px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.receive-prompt-actions{display:flex;gap:10px;justify-content:center}.receive-prompt-actions .btn-primary,.receive-prompt-actions .btn-secondary{flex:1;justify-content:center}@keyframes fadeInUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes shimmer{0%{transform:translate(-100%)}to{transform:translate(100%)}}.spinning{animation:spin 1.2s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}@media(max-width:480px){.header{padding:10px 14px}.header-title h1{font-size:16px}.connection-status span{display:none}.main{padding:16px 12px 32px}.transfer-stats{flex-direction:column;gap:4px}}