@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap";:root{--bg-base:#f5f5f7;--bg-surface:#fff;--bg-dark:#1d1d1f;--border-subtle:#e5e5ea;--accent-primary:#06c;--accent-secondary:#e8f0fe;--text-primary:#1d1d1f;--text-secondary:#86868b;--text-muted:#86868b;--text-inverse:#fff;--success:#34c759;--danger:#ff3b30;--warning:#c69055;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, sans-serif;--font-mono:"JetBrains Mono", monospace;--sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:20px;--sp-6:24px;--sp-8:32px;--sp-10:40px;--sp-12:48px;--sp-16:64px;--sp-20:80px;--sp-24:96px;--radius-sm:8px;--radius-md:12px;--radius-lg:20px;--radius-xl:28px;--radius-full:9999px;--shadow-sm:0 1px 2px #0000000a;--shadow-md:0 4px 12px #0000000f;--shadow-lg:0 12px 40px #00000014;--ease-out:cubic-bezier(.16, 1, .3, 1);--transition-fast:.15s var(--ease-out);--transition-base:.25s var(--ease-out)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;font-size:16px}body{font-family:var(--font-sans);background-color:var(--bg-base);color:var(--text-primary);min-height:100vh;overflow-x:hidden}#root{flex-direction:column;min-height:100vh;display:flex}.font-sans-medium{font-family:var(--font-sans);letter-spacing:-.01em;font-weight:500}.font-mono{font-family:var(--font-mono);letter-spacing:-.02em}.btn{font-family:var(--font-sans);border-radius:var(--radius-full);cursor:pointer;transition:all var(--transition-fast);white-space:nowrap;-webkit-user-select:none;user-select:none;justify-content:center;align-items:center;gap:var(--sp-2);border:none;font-size:.9rem;font-weight:500;display:inline-flex}.btn:active{transform:scale(.97)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--bg-dark);color:var(--text-inverse);padding:var(--sp-2) var(--sp-5)}.btn-primary:hover:not(:disabled){box-shadow:var(--shadow-sm);background:#000}.btn-outline{color:var(--text-primary);padding:calc(var(--sp-2) - 1px) var(--sp-5);border:1px solid var(--border-subtle);background:0 0}.btn-outline:hover:not(:disabled){background:#00000008}.btn-ghost{color:var(--text-secondary);padding:var(--sp-1) var(--sp-2);border-radius:var(--radius-sm);background:0 0}.btn-ghost:hover:not(:disabled){color:var(--text-primary);background:#0000000d}.btn-icon{border-radius:50%;width:32px;height:32px;padding:0}.btn-sync{background:var(--bg-surface);width:90px;height:90px;color:var(--accent-primary);border:1px solid var(--border-subtle);cursor:pointer;border-radius:50%;justify-content:center;align-items:center;margin:0 auto;transition:all .2s;display:flex;box-shadow:0 4px 24px #00000014}.btn-sync:hover{box-shadow:var(--shadow-md);transform:scale(1.05)}.btn-sync svg{stroke-width:2px;width:35px;height:35px}.input-pill-wrapper{background:var(--bg-surface);border-radius:var(--radius-full);border:1px solid var(--border-subtle);width:100%;max-width:380px;transition:box-shadow var(--transition-fast), border-color var(--transition-fast);align-items:center;margin:0 auto;padding:6px 6px 6px 20px;display:flex;box-shadow:0 4px 20px #0000000d}.input-pill-wrapper:focus-within{border-color:var(--accent-primary);box-shadow:0 0 0 3px #0066cc26}.input-pill{font-family:var(--font-sans);color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;font-size:1rem;font-weight:500}.input-pill::placeholder{color:#a1a1a6;letter-spacing:.02em;font-size:.85rem;font-style:italic;font-weight:400}.input-pill-btn{background:var(--bg-dark);color:#fff;cursor:pointer;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;transition:background .15s,transform .15s;display:flex}.input-pill-btn:hover{background:#000;transform:scale(1.05)}.input-pill-btn svg{width:16px;height:16px}.validation-pill{font-family:var(--font-sans);color:var(--warning);border-radius:var(--radius-full);margin-top:var(--sp-3);background:#c690551f;align-items:center;gap:6px;padding:6px 14px;font-size:.8rem;font-weight:500;animation:.3s cubic-bezier(.16,1,.3,1) both slide-up-fade;display:inline-flex}@keyframes slide-up-fade{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.app-header-fixed{padding:var(--sp-6) var(--sp-8);z-index:10;justify-content:space-between;align-items:center;display:flex;position:absolute;top:0;left:0;right:0}.app-logo-icon{-webkit-user-select:none;user-select:none;font-size:28px;line-height:1}.app-main{padding:var(--sp-6) var(--sp-4);flex-direction:column;flex:1;justify-content:center;align-items:center;width:100%;max-width:560px;margin:0 auto;display:flex}.app-footer{text-align:center;color:var(--text-muted);padding:var(--sp-6);margin-top:auto;font-size:.75rem}.handle-display{align-items:center;gap:var(--sp-2);margin-bottom:var(--sp-8);text-align:center;flex-direction:column;display:flex;position:relative}.handle-label{font-family:var(--font-sans);color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;font-size:.9rem;font-weight:500}.handle-text-btn{font-family:var(--font-mono);color:var(--text-primary);cursor:pointer;padding:var(--sp-1) var(--sp-4);border-radius:var(--radius-md);background:0 0;border:none;font-size:2rem;font-weight:700;transition:all .2s}.handle-text-btn:hover{background:#0000000d}.handle-text-btn:active{transform:scale(.98)}.toast-pill{top:var(--sp-8);-webkit-backdrop-filter:blur(12px);color:#fff;border-radius:var(--radius-full);font-family:var(--font-sans);box-shadow:var(--shadow-lg);z-index:100;align-items:center;gap:var(--sp-2);pointer-events:none;animation:toast-fade-in .3s var(--ease-out) both;background:#1d1d1fd9;padding:10px 20px;font-size:.85rem;font-weight:500;display:flex;position:fixed;left:50%;transform:translate(-50%)}@keyframes toast-fade-in{0%{opacity:0;transform:translate(-50%,-16px)}to{opacity:1;transform:translate(-50%)}}.handle-loading-text{font-family:var(--font-mono);color:var(--text-muted);justify-content:center;align-items:center;height:3.2rem;font-size:1rem;font-weight:500;animation:1.5s infinite pulse;display:inline-flex}.paired-pill{background:var(--bg-dark);color:var(--text-inverse);border-radius:var(--radius-full);align-items:center;gap:var(--sp-3);margin:0 auto var(--sp-8);box-shadow:var(--shadow-sm);padding:6px 6px 6px 16px;display:inline-flex}.paired-pill-text{font-family:var(--font-sans);letter-spacing:.05em;text-transform:uppercase;color:var(--text-muted);font-size:.75rem;font-weight:600}.paired-pill-handle{font-family:var(--font-mono);color:var(--text-inverse);margin-left:var(--sp-1);font-size:.9rem;font-weight:500}.paired-pill-dot{background:var(--success);width:8px;height:8px;margin-right:var(--sp-1);border-radius:50%;display:inline-block;box-shadow:0 0 8px #34c75966}.paired-pill-close{width:28px;height:28px;color:var(--text-inverse);cursor:pointer;margin-left:var(--sp-2);background:#ffffff26;border:none;border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;transition:background .15s;display:flex}.paired-pill-close:hover{background:#ffffff40}.paired-pill-close svg{width:14px;height:14px}.dropzone-text{font-family:var(--font-sans);color:var(--text-secondary);text-align:center;margin-bottom:var(--sp-6);cursor:pointer;font-size:1rem;font-weight:500;transition:color .2s}.dropzone-text:hover{color:var(--text-primary)}.file-list{gap:var(--sp-3);flex-direction:column;width:100%;display:flex}.file-list-header{margin-bottom:var(--sp-2);justify-content:space-between;align-items:center;display:flex}.file-card{background:var(--bg-surface);border-radius:var(--radius-md);padding:var(--sp-3) var(--sp-4);align-items:center;gap:var(--sp-4);box-shadow:var(--shadow-sm);border:1px solid var(--border-subtle);transition:transform .2s cubic-bezier(.34,1.56,.64,1),box-shadow .2s;display:flex}.file-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}.file-card-icon{border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;display:flex}.file-card-icon svg{width:16px;height:16px}.file-card-icon.send{color:var(--accent-primary);background:#0066cc1a}.file-card-icon.receive{color:var(--success);background:#34c7591a}.file-card-info{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.file-card-name{font-family:var(--font-sans);color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:.9rem;font-weight:600;overflow:hidden}.file-card-meta{font-family:var(--font-sans);color:var(--text-muted);font-size:.8rem}.file-card-action{font-family:var(--font-sans);color:var(--accent-primary);cursor:pointer;padding:var(--sp-1) var(--sp-2);border-radius:var(--radius-sm);background:0 0;border:none;flex-shrink:0;font-size:.8rem;font-weight:600;transition:background .15s}.file-card-action:hover{background:#0066cc14}.file-card-check{color:var(--success);font-size:1.2rem}.progress-flat{width:100%;margin-bottom:var(--sp-6);background:var(--bg-surface);padding:var(--sp-4);border-radius:var(--radius-md);border:1px solid var(--border-subtle);box-shadow:var(--shadow-sm)}.progress-flat-header{font-family:var(--font-sans);color:var(--text-secondary);margin-bottom:var(--sp-3);justify-content:space-between;font-size:.85rem;font-weight:500;display:flex}.progress-flat-track{background:var(--bg-base);border-radius:var(--radius-full);height:6px;overflow:hidden}.progress-flat-fill{border-radius:var(--radius-full);height:100%;transition:width .3s}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;background:#0000004d;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-card{background:var(--bg-surface);border-radius:var(--radius-xl);padding:var(--sp-8);text-align:center;width:100%;max-width:400px;box-shadow:var(--shadow-lg)}.modal-title{font-family:var(--font-sans);letter-spacing:.05em;color:var(--text-muted);text-transform:uppercase;margin-bottom:var(--sp-4);font-size:.8rem;font-weight:600}.modal-handle{font-family:var(--font-mono);color:var(--text-primary);margin-bottom:var(--sp-1);font-size:1.8rem;font-weight:700}.modal-subtitle{font-family:var(--font-sans);color:var(--text-secondary);margin-bottom:var(--sp-8);font-size:1rem}.modal-actions{gap:var(--sp-3);justify-content:center;display:flex}.modal-actions .btn{min-width:120px}.anim-fade-up{animation:fade-in-up .4s var(--ease-out) both}@keyframes fade-in-up{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.spinner{border:2px solid #0000001a;border-top-color:currentColor;border-radius:50%;width:16px;height:16px;animation:.7s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}