@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color 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components;@layer utilities{.relative{position:relative}.static{position:static}.start{inset-inline-start:var(--spacing)}.end{inset-inline-end:var(--spacing)}.table{display:table}.table-row{display:table-row}}:root{--paper:#f3f1e8;--paper-strong:#fffef8;--ink:#171914;--muted:#6f7169;--line:#d8d7cd;--acid:#dfff3f;--blue:#2457ff;--orange:#ff6b36;--shadow:0 24px 60px #23251c14}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--paper);color:var(--ink);min-width:320px;margin:0;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif}button,input,textarea{font:inherit}button,label{-webkit-tap-highlight-color:transparent}button{color:inherit}a{color:inherit;text-decoration:none}main{min-height:100vh;position:relative;overflow:hidden}.ambient-grid{pointer-events:none;opacity:.42;background-image:linear-gradient(#1719140e 1px,#0000 1px),linear-gradient(90deg,#1719140e 1px,#0000 1px);background-size:36px 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1fr;gap:3px;width:36px;height:36px;padding:6px;display:grid;transform:rotate(2deg)}.brand-mark b{background:var(--paper)}.brand-mark b:nth-child(2),.brand-mark b:nth-child(3){background:var(--acid);border-radius:50%}.offline-pill{border:1px solid var(--line);color:var(--muted);background:#ffffff5c;border-radius:99px;align-items:center;gap:9px;padding:9px 13px;font-size:12px;display:flex}.offline-pill span{background:#a7a89f;border-radius:50%;width:7px;height:7px}.offline-pill.ready span{background:#3ab36c;box-shadow:0 0 0 4px #3ab36c1f}.hero{grid-template-columns:1.45fr .55fr;align-items:end;gap:60px;min-height:340px;padding:64px 0 50px;display:grid}.eyebrow,.kicker{color:var(--muted);letter-spacing:.18em;text-transform:uppercase;margin:0;font:650 10px/1.4 ui-monospace,SFMono-Regular,Menlo,monospace}.eyebrow span{color:var(--ink);background:var(--acid);letter-spacing:.08em;margin-right:6px;padding:5px 8px;display:inline-block}.hero h1{letter-spacing:-.075em;margin:25px 0 0;font-size:clamp(58px,7.6vw,116px);font-weight:850;line-height:.82}.hero h1 em{color:var(--blue);letter-spacing:-.08em;font-family:Georgia,Songti SC,serif;font-style:normal;font-weight:400}.hero-copy{border-left:2px solid var(--orange);color:#55584f;max-width:400px;margin:0;padding-left:24px;font-size:14px;line-height:1.85}.role-switch{background:var(--ink);box-shadow:var(--shadow);border-radius:6px;grid-template-columns:1fr 1fr;padding:7px;display:grid}.role-switch button{color:#a9aba3;cursor:pointer;background:0 0;border:0;border-radius:3px;justify-content:center;align-items:center;gap:13px;padding:15px 24px;transition:all .2s;display:flex}.role-switch button svg{width:22px;height:22px}.role-switch button span{text-align:left;gap:2px;display:grid}.role-switch button b{font-size:14px}.role-switch button small{letter-spacing:.04em;font-size:10px}.role-switch button.active{background:var(--acid);color:var(--ink)}.workspace{grid-template-columns:220px minmax(0,1fr);gap:32px;padding:42px 0 100px;display:grid}.step-rail{align-self:start;gap:4px;display:grid;position:sticky;top:20px}.step{color:#96988f;border-left:2px solid #0000;align-items:center;gap:14px;padding:16px;display:flex}.step>span{border:1px solid #c9c9c0;border-radius:50%;place-items:center;width:34px;height:34px;font:600 10px ui-monospace,monospace;display:grid}.step>div{gap:3px;display:grid}.step b{font-size:13px}.step small{font-size:10px}.step.active{color:var(--ink);border-left-color:var(--blue)}.step.active>span{background:var(--ink);border-color:var(--ink);color:var(--paper)}.work-content{gap:24px;min-width:0;display:grid}.lab-card{border:1px solid var(--line);background:#fffef8c4;border-radius:6px;overflow:hidden;box-shadow:0 12px 32px #282a230b}.section-heading{justify-content:space-between;align-items:start;gap:24px;padding:30px 34px 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span{color:var(--muted);font-size:9px}.timeline{background:#dcdbd2;height:4px;margin:28px 0;overflow:hidden}.timeline i{background:var(--blue);height:100%;transition:width .1s linear;display:block}.timeline.big{height:6px;margin:22px 0}.button-row{flex-wrap:wrap;gap:10px;display:flex}.primary-button,.ghost-button,.dark-button,.copy-button,.download-button{cursor:pointer;border:0;border-radius:3px;justify-content:center;align-items:center;gap:9px;min-height:45px;padding:0 18px;font-size:12px;font-weight:750;transition:transform .15s,opacity .15s;display:inline-flex}.primary-button:hover,.dark-button:hover,.copy-button:hover{transform:translateY(-1px)}.primary-button{background:var(--blue);color:#fff;box-shadow:0 10px 22px #2457ff2b}.primary-button svg,.ghost-button svg,.dark-button svg,.copy-button svg,.download-button svg{width:18px;height:18px}.ghost-button{border:1px solid var(--line);background:0 0}.dark-button{background:var(--ink);color:#fff}.dark-button.full{width:calc(100% - 68px);margin:4px 34px 28px}.dark-button:disabled,.copy-button:disabled{opacity:.32;cursor:not-allowed;transform:none}.mode-card{padding-bottom:30px}.mode-entry{grid-template-columns:.7fr 1.3fr;gap:20px;padding:0 34px;display:grid}.mode-entry label{gap:8px;display:grid}.mode-entry label>span{color:var(--muted);font-size:10px}.mode-entry input,.retry-panel textarea{border:1px solid var(--line);width:100%;color:var(--ink);background:#fff;border-radius:3px;outline:none}.mode-entry input{letter-spacing:.08em;height:58px;padding:0 16px;font:700 16px ui-monospace,SFMono-Regular,Menlo,monospace}.mode-entry input:focus,.retry-panel textarea:focus{border-color:var(--blue);box-shadow:0 0 0 3px #2457ff14}.mode-result{background:#e9e8df;border-radius:3px;grid-template-columns:34px minmax(130px,1fr) auto;align-items:center;gap:12px;padding:13px 16px;display:grid}.mode-result>span{width:31px;height:31px;color:var(--muted);border:1px solid #b9bab2;border-radius:50%;place-items:center;display:grid}.mode-result>span svg{width:16px}.mode-result.valid>span{color:var(--ink);background:var(--acid);border-color:var(--acid)}.mode-result>div{gap:2px;display:grid}.mode-result small{color:var(--muted);font-size:9px}.mode-result b{font-size:13px}.mode-spec{flex-flow:wrap;justify-content:flex-end;display:flex!important}.mode-spec b{background:var(--paper-strong);padding:5px 7px;font:650 9px ui-monospace,monospace}.transfer-card{padding-bottom:0}.file-drop{cursor:pointer;text-align:center;background:#e8e6dc6b;border:1px dashed #aaa99e;flex-direction:column;justify-content:center;align-items:center;gap:7px;min-height:230px;margin:0 34px 34px;padding:30px;display:flex;position:relative}.file-drop:hover{border-color:var(--blue);background:#2457ff09}.file-drop input{opacity:0;cursor:pointer;position:absolute;inset:0}.file-icon{background:var(--acid);border-radius:50%;place-items:center;width:45px;height:45px;margin-bottom:5px;display:grid}.file-icon svg{width:22px}.file-drop b{font-size:17px}.file-drop small{color:var(--muted);font-size:11px}.file-drop em{color:var(--blue);margin-top:5px;font-size:11px;font-style:normal;text-decoration:underline}.file-drop strong{color:#a3331f;margin-top:10px;font-size:11px}.transfer-layout{border-bottom:1px solid var(--line)}.transfer-qr{padding-block:34px}.file-summary{border-bottom:1px solid var(--line);grid-template-columns:38px minmax(0,1fr) auto;align-items:center;gap:12px;padding-bottom:19px;display:grid}.file-summary>span{background:var(--acid);border-radius:3px;place-items:center;width:38px;height:38px;display:grid}.file-summary svg{width:20px}.file-summary>div{gap:3px;min-width:0;display:grid}.file-summary b{white-space:nowrap;text-overflow:ellipsis;font-size:13px;overflow:hidden}.file-summary small{color:var(--muted);font-size:9px}.file-summary button,.small-actions button{color:var(--blue);cursor:pointer;background:0 0;border:0;font-size:10px}.now-frame{margin-top:24px;display:grid}.now-frame small{color:var(--muted);font-size:9px}.now-frame b{letter-spacing:-.03em;margin:5px 0;font-size:25px}.now-frame span{color:var(--muted);font:600 10px ui-monospace,monospace}.retry-panel{background:#e9e7dd;grid-template-columns:1fr minmax(260px,.8fr) auto;align-items:center;gap:18px;padding:28px 34px 34px;display:grid}.retry-panel>div{align-items:center;gap:12px;display:flex}.retry-panel>div>div{gap:3px;display:grid}.retry-panel b{font-size:12px}.retry-panel small{color:var(--muted);font-size:9px}.retry-icon{border:1px solid #b8b8ae;border-radius:50%;flex:none;place-items:center;width:37px;height:37px;display:grid}.retry-icon svg{width:18px}.retry-panel textarea{resize:vertical;letter-spacing:.08em;min-height:55px;padding:10px;font:650 11px/1.6 ui-monospace,monospace}.form-message{color:var(--muted);grid-column:2/-1;margin:-9px 0 0;font-size:10px}.receiver-workspace{grid-template-columns:minmax(300px,.72fr) minmax(460px,1.28fr);align-items:start}.phone-column{gap:20px;display:grid;position:sticky;top:20px}.camera-card{background:var(--ink);color:#fff;border-radius:7px;padding:24px;box-shadow:0 28px 70px #1416112e}.camera-top{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.camera-top h2{margin:3px 0 0;font-size:25px}.camera-top .kicker{color:#888b81}.camera-state{color:#999c91;align-items:center;gap:7px;font-size:9px;display:flex}.camera-state i{background:#64665f;border-radius:50%;width:7px;height:7px}.camera-state.on{color:var(--acid)}.camera-state.on i{background:var(--acid);box-shadow:0 0 0 5px #dfff3f1f}.video-stage{aspect-ratio:4/5;background:#292b25;place-items:center;display:grid;position:relative;overflow:hidden}.video-stage video{object-fit:cover;width:100%;height:100%}.camera-placeholder{text-align:center;background:radial-gradient(circle at 50% 45%,#383b33,#22241f 70%);flex-direction:column;justify-content:center;align-items:center;gap:7px;display:flex;position:absolute;inset:0}.camera-placeholder>span{border:1px solid #575a51;border-radius:50%;place-items:center;width:62px;height:62px;margin-bottom:8px;display:grid}.camera-placeholder svg{width:27px;color:var(--acid)}.camera-placeholder b{font-size:13px}.camera-placeholder small{color:#8d9086;font-size:9px}.focus{border-color:var(--acid);pointer-events:none;border-style:solid;width:36px;height:36px;position:absolute}.f1{border-width:2px 0 0 2px;top:9%;left:9%}.f2{border-width:2px 2px 0 0;top:9%;right:9%}.f3{border-width:0 0 2px 2px;bottom:9%;left:9%}.f4{border-width:0 2px 2px 0;bottom:9%;right:9%}.camera-button{background:var(--acid);width:100%;color:var(--ink);box-shadow:none;margin-top:16px}.camera-error{color:#ffb19a;margin:12px 0 0;font-size:10px;line-height:1.5}.receiver-progress-card{background:var(--blue);color:#fff;border-radius:6px;align-items:center;gap:20px;padding:22px;display:flex}.progress-ring{--progress:0deg;background:conic-gradient(var(--acid) var(--progress), #fff3 0);border-radius:50%;flex:none;place-items:center;width:94px;height:94px;display:grid}.progress-ring:before{content:"";background:var(--blue);border-radius:50%;width:76px;height:76px;position:absolute}.progress-ring>div{z-index:1;text-align:center;display:grid}.progress-ring b{font-size:22px}.progress-ring small{opacity:.7;font-size:8px}.receive-summary{gap:4px;min-width:0;display:grid}.receive-summary>small{opacity:.65;font-size:9px}.receive-summary h3{white-space:nowrap;text-overflow:ellipsis;margin:0;font-size:17px;overflow:hidden}.receive-summary p{opacity:.75;margin:2px 0 0;font-size:9px;line-height:1.5}.status-tag{background:#ffffff24;width:fit-content;margin-top:6px;padding:5px 7px;font-size:9px}.status-tag.danger{background:var(--orange)}.download-button{background:var(--acid);color:var(--ink);width:fit-content;min-height:35px;margin-top:8px;font-size:10px}.receiver-results{gap:20px;min-width:0;display:grid}.small-actions{gap:8px;display:flex}.small-actions button{background:#e8e7df;padding:7px 9px;text-decoration:none}.result-table{border-top:1px solid var(--line)}.table-head,.table-row{border-bottom:1px solid var(--line);grid-template-columns:minmax(180px,1fr) 76px 130px;align-items:center;gap:10px;padding:11px 34px;display:grid}.table-head{color:var(--muted);text-transform:uppercase;letter-spacing:.1em;font-size:9px}.table-row>span:first-child{grid-template-columns:10px auto;align-items:center;column-gap:9px;display:grid}.table-row>span:first-child small{color:var(--muted);grid-column:2;font:500 8px ui-monospace,monospace}.table-row b{font-size:11px}.table-row>span:nth-child(2){font:650 11px 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