:root{--app-canvas: #f3f2ef;--app-canvas-highlight: #ffffff;--surface: #ffffff;--surface-subtle: #f6f7f8;--surface-raised: #ffffff;--text: #17191c;--text-secondary: #70757d;--line: #e2e5e8;--overlay: rgba(19, 22, 27, .38);--shadow: rgba(32, 35, 41, .1);--blue: #0b63ce;--action: #0b63ce;--blue-soft: #eaf3ff;--green: #198754;--danger: #a13232;--success-soft: #edf8f1;--warning: #795810;--warning-soft: #fff5dd;--danger-soft: #fff0f0;--on-primary: #ffffff;--muted: var(--text-secondary);--radius-sm: 12px;--radius-md: 16px;--radius-lg: 24px;--ease: cubic-bezier(.22, 1, .36, 1);--bottom-rail-max-width: 42rem;--shell-inline-gap: 1rem;--bottom-rail-gap: clamp(1.1rem, 4.2vh, 2.1rem);--bottom-footer-height: 2.15rem;--bottom-footer-offset: max(.55rem, env(safe-area-inset-bottom));--bottom-rail-reserved: calc(7.35rem + env(safe-area-inset-bottom)) ;color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--app-canvas);color:var(--text);font-synthesis:none;text-rendering:optimizeLegibility}:root[data-theme=dark]{--app-canvas: #0b0d10;--app-canvas-highlight: #161a20;--surface: #111419;--surface-subtle: #181c22;--surface-raised: #1d2229;--text: #f3f5f7;--text-secondary: #aeb5bf;--line: #2c323b;--overlay: rgba(0, 0, 0, .7);--shadow: rgba(0, 0, 0, .42);--blue: #5ba1ff;--action: #1468c9;--blue-soft: #142b49;--green: #53c78e;--danger: #ff8b8b;--success-soft: #102a20;--warning: #f0c768;--warning-soft: #332a14;--danger-soft: #36191e;--on-primary: #ffffff;color-scheme:dark}*{box-sizing:border-box}html{min-width:320px;height:100%;min-height:100%;background:var(--app-canvas);overflow:hidden}body{min-width:320px;height:100%;min-height:100%;margin:0;overflow:hidden;background:var(--app-canvas);color:var(--text)}button,input,textarea{font:inherit}button{min-height:44px;border:0;border-radius:var(--radius-sm);padding:.78rem 1rem;cursor:pointer;color:var(--text);background:var(--surface-subtle);transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease)}button:hover:not(:disabled){transform:translateY(-1px)}button:active:not(:disabled){transform:translateY(1px) scale(.985)}button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid color-mix(in srgb,var(--blue) 35%,transparent);outline-offset:3px}button:disabled{cursor:not-allowed;opacity:.48}svg{display:block;width:1.15em;height:1.15em;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}input,textarea{width:100%;border:1px solid var(--line);border-radius:var(--radius-sm);padding:.82rem .9rem;color:var(--text);background:var(--surface);transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),transform .18s var(--ease)}textarea{min-height:8rem;resize:vertical}::placeholder{color:var(--text-secondary)}.app-shell{position:relative;width:min(100%,1030px);height:100dvh;margin:0 auto;padding:max(.8rem,env(safe-area-inset-top)) var(--shell-inline-gap) calc(4.25rem + env(safe-area-inset-bottom));display:grid;grid-template-rows:auto minmax(0,1fr);overflow:hidden}.route-app-shell{padding-bottom:max(.8rem,env(safe-area-inset-bottom))}.route-app-shell .route-main{padding-bottom:0;scroll-padding-bottom:0}.route-app-shell .bottom-rail{display:none}.route-app-shell .download-screen,.route-app-shell .success-screen{min-height:0}.topbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;width:100%;max-width:940px;margin:0 auto;padding:.5rem 0 .65rem;animation:screen-in .42s var(--ease) both}.brand{display:inline-flex;align-items:center;gap:.65rem;height:3.25rem;min-height:0;padding:0;color:var(--text);background:transparent;font-size:1.35rem;font-weight:850;line-height:1;letter-spacing:0;white-space:nowrap}.brand img{display:block;flex:0 0 auto;width:2.05rem;height:2.05rem;border-radius:.55rem;box-shadow:none}.brand span{display:block}.brand:hover:not(:disabled){transform:none}.topbar-actions{display:flex;align-items:center;gap:.65rem;height:3.25rem}.icon-action{display:grid;width:3.25rem;height:3.25rem;min-height:0;place-items:center;border:0;border-radius:50%;padding:0;color:var(--text);background:transparent;transition:color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease)}.icon-action:hover:not(:disabled),.icon-action:focus-visible{background:var(--surface-subtle)}.icon-action:active:not(:disabled){transform:scale(.96)}.icon-action svg{width:1.55rem;height:1.55rem}.theme-toggle-button{background:transparent}.language-toggle-button{font-size:.92rem;font-weight:800;letter-spacing:.06em}.language-toggle-code{line-height:1}.home-info-glyph{font-family:Georgia,Times New Roman,serif;font-size:1.55rem;font-style:italic;font-weight:700;line-height:1}.theme-picker{position:relative}.theme-layer{position:fixed;z-index:2147483647;left:0;right:0;display:flex;justify-content:center;padding-inline:1rem;pointer-events:none}@media(min-width:761px){.theme-layer{right:auto;width:min(24rem,calc(100vw - 2rem));justify-content:flex-start;padding-inline:0}}.theme-picker-menu{position:static;display:grid;width:min(24rem,calc(100vw - 2rem));gap:0;border:1px solid var(--line);border-radius:1.55rem;padding:1rem;background:var(--surface);box-shadow:none;pointer-events:auto}.theme-picker-menu>button{display:grid;grid-template-columns:2rem minmax(0,1fr) 1.6rem;align-items:center;gap:1rem;min-height:4.45rem;border:0;border-radius:1rem;padding:0 .85rem;color:var(--text);background:transparent;font-size:1rem;font-weight:520;text-align:left}.theme-picker-menu>button:hover,.theme-picker-menu>button:focus-visible{background:var(--surface-subtle);outline:0}.theme-picker-menu>button.selected{color:var(--blue);font-weight:800}.theme-picker-menu svg{width:1.45rem;height:1.45rem}.language-flag{display:inline-flex;align-items:center;justify-content:center;width:1.45rem;font-size:1.15rem;line-height:1}.theme-picker-menu>button>svg:last-child{grid-column:3}.notice{max-width:940px;margin:0 auto 1rem;padding:.8rem 1rem;border-radius:var(--radius-md);color:var(--warning);background:var(--warning-soft);font-weight:680}.home-main,.route-main{min-height:0;overflow:hidden}.route-main{display:grid;align-items:start;overflow-y:auto;padding-bottom:var(--bottom-rail-reserved);scroll-padding-bottom:var(--bottom-rail-reserved);scrollbar-width:none}.route-main.content-fits{align-items:center}.route-main.content-fits>.work-surface,.route-main.content-fits>.empty-state,.route-main.content-fits>.download-screen,.route-main.content-fits>.success-screen{margin-top:0}.route-main::-webkit-scrollbar{display:none}.home-screen{position:relative;display:grid;justify-items:center;align-content:center;height:100%;min-height:0;padding:0 0 clamp(5.3rem,13vh,6.9rem);overflow:hidden;text-align:center;animation:screen-in .52s var(--ease) both}.home-stage{display:contents}.home-primary{display:grid;justify-items:center;gap:clamp(.55rem,2.1vh,1.05rem);width:min(100%,var(--bottom-rail-max-width))}.mode-cta{position:relative;isolation:isolate;display:grid;place-items:center;gap:.55rem;width:clamp(10rem,min(36vh,58vw),13.75rem);aspect-ratio:1;min-height:auto;border-radius:34%;color:var(--on-primary);background:linear-gradient(145deg,rgba(255,255,255,.2),transparent 34%),linear-gradient(180deg,color-mix(in srgb,var(--blue) 88%,#38bdf8) 0%,var(--action) 100%);box-shadow:inset 0 -.5rem color-mix(in srgb,#001b3f 22%,transparent),0 1.05rem 2.5rem color-mix(in srgb,var(--action) 24%,transparent),0 0 0 .7rem color-mix(in srgb,var(--blue) 7%,transparent);font-size:clamp(1.25rem,6vw,1.9rem);font-weight:900;line-height:1;text-align:center;animation:cta-arrive .62s var(--ease) 90ms both;transition:background .26s var(--ease),box-shadow .26s var(--ease),transform .18s var(--ease)}.mode-cta:hover:not(:disabled){box-shadow:inset 0 -.5rem color-mix(in srgb,#001b3f 22%,transparent),0 1.2rem 2.9rem color-mix(in srgb,var(--action) 30%,transparent),0 0 0 .9rem color-mix(in srgb,var(--blue) 9%,transparent)}.mode-cta:active:not(:disabled){transform:translateY(2px) scale(.985)}.mode-cta.send{background:linear-gradient(145deg,rgba(255,255,255,.2),transparent 34%),linear-gradient(180deg,color-mix(in srgb,var(--green) 82%,#6ee7b7),#1f8f68);box-shadow:inset 0 -.5rem color-mix(in srgb,#052d1f 20%,transparent),0 1.05rem 2.5rem color-mix(in srgb,#1f8f68 28%,transparent),0 0 0 .7rem color-mix(in srgb,var(--green) 10%,transparent)}.mode-cta.send:hover:not(:disabled){box-shadow:inset 0 -.5rem color-mix(in srgb,#052d1f 20%,transparent),0 1.2rem 2.9rem color-mix(in srgb,#1f8f68 34%,transparent),0 0 0 .9rem color-mix(in srgb,var(--green) 12%,transparent)}.mode-cta-icon svg{width:clamp(2.4rem,10vw,3.35rem);height:clamp(2.4rem,10vw,3.35rem);stroke-width:4.2;animation:cta-swap .24s var(--ease)}.mode-cta-label{animation:cta-swap .24s var(--ease)}.mode-toggle{position:relative;display:grid;grid-template-columns:1fr 1fr;width:100%;max-width:var(--bottom-rail-max-width);margin-top:var(--bottom-rail-gap);padding:.28rem;border:1px solid var(--line);border-radius:999px;background:color-mix(in srgb,var(--surface) 88%,transparent);box-shadow:none;touch-action:pan-y}.mode-toggle-thumb{position:absolute;inset:.28rem auto .28rem .28rem;z-index:2;width:calc(50% - .28rem);border-radius:999px;background:var(--action);box-shadow:0 .55rem 1.2rem color-mix(in srgb,var(--action) 24%,transparent);transition:transform .26s var(--ease),background .26s var(--ease),box-shadow .26s var(--ease);cursor:grab}.mode-toggle-thumb:active{cursor:grabbing}.mode-toggle[data-mode=send] .mode-toggle-thumb{background:#1f8f68;box-shadow:0 .55rem 1.2rem color-mix(in srgb,#1f8f68 30%,transparent)}.mode-toggle button{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.42rem;min-width:0;min-height:2.75rem;border-radius:999px;padding:0 .58rem;color:var(--text-secondary);background:transparent;font-size:.96rem;font-weight:820;white-space:nowrap}.mode-toggle-option-content{position:relative;z-index:3;display:inline-flex;align-items:center;justify-content:center;gap:.42rem;pointer-events:none}.mode-toggle button:hover:not(:disabled),.mode-toggle button:active:not(:disabled){transform:none}.mode-toggle button.is-active{color:var(--on-primary)}.mode-toggle .receive-option svg{color:var(--blue)}.mode-toggle .send-option svg{color:var(--green)}.mode-toggle button.is-active svg{color:currentColor}.mode-toggle svg{width:1.25rem;height:1.25rem;stroke-width:2.25}.home-info-backdrop{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:1rem;background:color-mix(in srgb,var(--app-canvas) 78%,transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);animation:screen-in .18s var(--ease) both}.home-info-dialog{display:grid;gap:.85rem;width:min(100%,30rem);max-height:min(34rem,calc(100dvh - 2rem));overflow:auto;padding:1rem;border:1px solid var(--line);border-radius:24px;background:var(--surface);box-shadow:none;text-align:left;animation:sheet-in .24s var(--ease) both}.home-info-dialog header{display:flex;align-items:start;justify-content:space-between;gap:1rem}.home-info-dialog h2,.home-info-dialog p{margin:0}.home-info-dialog h2{color:var(--text);font-size:1.08rem;line-height:1.2;letter-spacing:0}.home-info-dialog header p{margin-top:.35rem;color:var(--text-secondary);font-size:.88rem;line-height:1.45}.home-info-faq{display:grid;gap:.42rem}.home-info-faq details{border:1px solid var(--line);border-radius:var(--radius-sm);background:color-mix(in srgb,var(--surface-subtle) 78%,transparent)}.home-info-faq summary{min-height:2.35rem;padding:.55rem .7rem;color:var(--text);font-size:.82rem;font-weight:820;cursor:pointer}.home-info-faq p{padding:0 .7rem .65rem;color:var(--text-secondary);font-size:.82rem;line-height:1.45}.home-primary:has(.trusted-quick) .mode-cta{width:clamp(8.75rem,min(29vh,48vw),11.25rem)}.home-primary:has(.trusted-quick) .mode-toggle{margin-top:clamp(.25rem,1.5vh,.75rem)}.trusted-quick{display:grid;gap:.65rem;width:100%;padding:.75rem;border:1px solid var(--line);border-radius:var(--radius-lg);background:color-mix(in srgb,var(--surface) 92%,transparent);text-align:left}.trusted-quick-header{display:flex;align-items:center;justify-content:space-between;gap:1rem}.trusted-quick h2,.trusted-quick p{margin:0}.trusted-quick h2{font-size:.94rem;line-height:1.2}.trusted-quick p{margin-top:.16rem;color:var(--text-secondary);font-size:.75rem;line-height:1.25}.trusted-quick-header>button{min-height:2.5rem;padding:.35rem .7rem;border:0;color:var(--blue);background:transparent;box-shadow:none;font-size:.78rem;font-weight:800}.trusted-quick-list{display:flex;gap:.55rem;min-width:0;overflow-x:auto;scrollbar-width:none}.trusted-quick-list::-webkit-scrollbar{display:none}.trusted-quick-device{display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;flex:1 0 calc((100% - .55rem)/2);column-gap:.4rem;min-width:min(10rem,calc((100% - .55rem)/2));min-height:3.5rem;padding:.48rem .45rem;border:1px solid color-mix(in srgb,var(--green) 42%,var(--line));border-radius:var(--radius-md);color:var(--text);background:var(--success-soft);box-shadow:none;text-align:left}.trusted-quick-device .trusted-device-avatar{grid-row:1 / 3}.trusted-quick-device>span:not(.trusted-device-avatar){overflow:hidden;font-size:.76rem;font-weight:800;text-overflow:ellipsis;white-space:nowrap}.trusted-quick-device small{color:var(--green);font-size:.7rem}.trusted-empty{width:100%;padding:.4rem;text-align:center}.trusted-device-avatar{display:inline-grid;place-items:center;width:2.3rem;height:2.3rem;flex:0 0 auto;border-radius:50%;color:var(--blue);background:var(--blue-soft)}.trusted-device-avatar svg{width:1.2rem;height:1.2rem}.trusted-devices-dialog{width:min(100%,34rem)}.trusted-device-list{display:grid;gap:.55rem;margin:0;padding:0;list-style:none}.trusted-device-list li{display:grid;grid-template-columns:1fr auto;align-items:center;gap:.55rem;padding:.55rem;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--surface-subtle)}.trusted-device-main{display:flex;align-items:center;justify-content:flex-start;gap:.65rem;min-width:0;padding:0;color:var(--text);background:transparent;box-shadow:none;text-align:left}.trusted-device-main>span:last-child{display:grid;min-width:0}.trusted-device-main strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.trusted-device-main small{color:var(--text-secondary)}.trusted-device-main:not(:disabled) small{color:var(--green)}.trusted-forget{min-height:2.5rem;padding:.35rem .65rem;border:0;color:var(--danger);background:transparent;box-shadow:none;font-size:.76rem;font-weight:800}.bottom-rail{position:absolute;z-index:20;bottom:var(--bottom-footer-offset);left:50%;width:min(calc(100% - (var(--shell-inline-gap) * 2)),var(--bottom-rail-max-width));transform:translate(-50%);display:grid;gap:0;overflow:hidden;padding:.24rem;border:1px solid color-mix(in srgb,var(--line) 80%,transparent);border-radius:1.65rem;background:linear-gradient(180deg,color-mix(in srgb,var(--surface) 94%,transparent),color-mix(in srgb,var(--surface-subtle) 90%,transparent));box-shadow:none;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);animation:sheet-in-centered .42s var(--ease) .14s both}.home-scan-action{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.7rem;width:100%;min-height:3.6rem;padding:.75rem 1rem;border:1px solid var(--line);border-radius:var(--radius-md);color:var(--text);background:color-mix(in srgb,var(--surface) 88%,transparent);box-shadow:none;font-size:1rem;font-weight:820;animation:item-in .36s var(--ease) .21s both}.home-scan-action:hover:not(:disabled){border-color:color-mix(in srgb,var(--line) 72%,var(--blue));background:var(--surface);box-shadow:none}.home-scan-action svg{width:1.55rem;height:1.55rem;stroke-width:2.1}.stats-panel{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;overflow:hidden;border-radius:1.4rem 1.4rem 0 0;background:transparent;transition:box-shadow .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease)}.app-footer{display:grid;align-content:center;justify-items:center;gap:.04rem;min-height:var(--bottom-footer-height);padding:.24rem .7rem;border-top:1px solid color-mix(in srgb,var(--line) 70%,transparent);border-radius:0 0 1.4rem 1.4rem;background:transparent;color:var(--text-secondary);font-size:.68rem;font-weight:520;line-height:1.15;text-align:center;transition:box-shadow .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease)}.app-footer-line{display:block}.app-footer-link{color:var(--text);font-weight:700;text-decoration:none}.app-footer-link:hover,.app-footer-link:focus-visible{color:var(--blue);text-decoration:underline}.counter{display:grid;min-width:0;justify-items:center;gap:.22rem;padding:.52rem .35rem;transition:transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease);animation:item-in .36s var(--ease) both}.counter:nth-child(1){animation-delay:.18s}.counter:nth-child(2){animation-delay:.23s}.counter:nth-child(3){animation-delay:.28s}.counter+.counter{border-left:1px solid var(--line)}.counter-icon{display:grid;place-items:center;width:1.25rem;height:1.25rem;color:var(--blue)}.counter:nth-child(2) .counter-icon,.counter:nth-child(3) .counter-icon{color:var(--green)}.counter-icon svg{width:1.08rem;height:1.08rem;fill:currentColor;stroke:none}.counter strong{color:var(--text);font-size:clamp(.95rem,3.7vw,1.2rem);line-height:1;font-weight:850}.stats-note{display:none}.work-surface,.empty-state{display:grid;gap:1.25rem;width:min(100%,940px);margin:1rem auto 0;padding:clamp(1rem,3vw,1.9rem);border:1px solid var(--line);border-radius:var(--radius-lg);background:color-mix(in srgb,var(--surface) 94%,transparent);box-shadow:none;animation:sheet-in .42s var(--ease) both;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease)}.work-surface>*,.empty-state>*,.home-primary>*{animation:item-in .36s var(--ease) both}.work-surface>*:nth-child(1),.empty-state>*:nth-child(1),.home-primary>*:nth-child(1){animation-delay:60ms}.work-surface>*:nth-child(2),.empty-state>*:nth-child(2),.home-primary>*:nth-child(2){animation-delay:.11s}.work-surface>*:nth-child(3),.empty-state>*:nth-child(3),.home-primary>*:nth-child(3){animation-delay:.16s}.work-surface>*:nth-child(4),.empty-state>*:nth-child(4),.home-primary>*:nth-child(4){animation-delay:.21s}.surface-header,.empty-state{text-align:center}.surface-header h1,.empty-state h1{margin:0;color:var(--text);font-size:clamp(1.45rem,5vw,2rem);line-height:1.12;letter-spacing:0}.surface-header p,.empty-state p,.muted{margin:.45rem auto 0;max-width:34rem;color:var(--text-secondary);font-size:.94rem;line-height:1.5}.receive-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:1rem;align-items:stretch}.receive-invite-card,.qr-box,.invite-panel,.manual-panel,.file-panel,.sender-offer-card,.progress-panel,.decision-panel,.status-block{display:grid;gap:.9rem;align-content:start;min-width:0;padding:clamp(1rem,3vw,1.4rem);border:1px solid var(--line);border-radius:var(--radius-lg);background:var(--surface);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease)}.qr-box,.receive-invite-card{justify-items:center;text-align:center;background:var(--surface-subtle)}.receive-invite-card input{text-align:left}.sender-offer-card{justify-items:center;gap:.75rem;padding:.85rem;background:var(--surface-subtle)}.sender-offer-card .qr-frame{justify-self:center}.sender-offer-card 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p{margin:0;color:var(--text-secondary);font-size:.88rem}.skeleton{position:relative;overflow:hidden;color:var(--text-secondary)}.skeleton:after{position:absolute;inset:0;background:linear-gradient(90deg,transparent,color-mix(in srgb,var(--surface-raised) 62%,transparent),transparent);animation:shimmer 1.25s infinite;content:""}.invite-panel label,.manual-panel label{color:var(--text);font-size:.86rem;font-weight:780}.actions{display:flex;gap:.65rem;flex-wrap:wrap}.actions.compact{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.primary{color:var(--on-primary);background:var(--action);font-weight:840;box-shadow:0 .65rem 1.4rem color-mix(in srgb,var(--action) 18%,transparent)}.primary.outline{border:1px solid color-mix(in srgb,var(--action) 72%,var(--line));color:var(--blue);background:var(--surface);box-shadow:none}.primary svg,.manual-panel button svg,.completion-actions button svg,.drop-zone 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