:root{color-scheme:light;--bg:#f7f8fa;--paper:#fff;--ink:#202d33;--muted:#68767c;--line:#e0e6e7;--accent:#225f53;--tint:#edf5f1;--red:#a02d3c;--radius:18px;font:14px/1.6 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}
*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.55}a{color:var(--accent)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid #75b6a5;outline-offset:4px}[hidden]{display:none!important}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip{position:fixed;left:16px;top:-100px;background:var(--accent);color:#fff;padding:12px;z-index:10}.skip:focus{top:10px}
.topbar{height:76px;padding:0 40px;display:flex;align-items:center;gap:30px;border-bottom:1px solid var(--line);background:#ffffffc9}.brand{font-weight:800;font-size:23px;text-decoration:none;color:var(--ink);letter-spacing:-1px}.brand span{font-weight:500;color:var(--accent)}.breadcrumb{font-size:12px;color:var(--muted);display:flex;gap:12px}.breadcrumb b{color:var(--ink);font-weight:500}.local-badge{margin-left:auto;font-size:11px;display:flex;align-items:center;gap:8px;color:var(--accent);font-weight:600}.local-badge i{height:6px;width:6px;background:#4c9574;border-radius:50%}main{max-width:1240px;padding:0 44px;margin:auto}.intro{padding:51px 0 38px;display:flex;justify-content:space-between;align-items:center;gap:32px}.eyebrow{font-size:10px;letter-spacing:1.8px;font-weight:700;color:var(--accent);margin:0 0 10px}h1{font-size:clamp(34px,4vw,49px);font-weight:650;letter-spacing:-2px;line-height:1.15;margin:0 0 18px}h1 span{color:#4a9476}.intro p:not(.eyebrow){color:var(--muted);font-size:14px;margin:0;line-height:1.9}.intro-art{width:284px;flex-shrink:0;display:grid;justify-items:center;gap:15px}.art-frame{position:relative;width:min(256px,100%);height:137px;border:1px solid #bfd4cb;background:#e4eee8;border-radius:12px;overflow:hidden;transform:rotate(-4deg);box-shadow:8px 8px 0 #e9eceb}.art-mountain{position:absolute;left:0;right:0;bottom:28px;height:60px;background:#95b8a2;clip-path:polygon(0 100%,25% 20%,43% 64%,63% 0,100% 100%)}.art-sun{position:absolute;right:45px;top:20px;width:18px;height:18px;background:#d7dbb2;border-radius:50%}.art-secret{position:absolute;top:51px;left:30px;right:30px;background:#fffffff0;border:1px solid #cddbd4;border-radius:8px;padding:8px;font:10px/1.7 ui-monospace,monospace;display:flex;align-items:center;gap:12px;box-shadow:0 5px 20px #2e655d0f}.art-secret span{background:#225f53;color:#d3ebca;border-radius:5px;padding:2px 7px;white-space:nowrap;font-size:7px}.art-caption{position:absolute;bottom:10px;left:19px;font-size:9px;color:#3a6656}.art-label{font:8px/1.5 ui-monospace,monospace;letter-spacing:2px;color:#7a9587}
.work-head{display:flex;justify-content:space-between;align-items:center;padding:0 0 21px}.mode-switch{display:flex;padding:4px;border:1px solid var(--line);background:#ecefef;border-radius:12px;gap:3px}.mode-switch button{display:flex;gap:10px;align-items:center;padding:10px 18px;border:0;background:transparent;color:var(--muted);border-radius:8px;font-size:12px;font-weight:600}.mode-switch button[aria-pressed=true]{background:var(--paper);color:var(--accent);box-shadow:0 2px 6px #182d2810}.mode-switch button span{font-size:19px;line-height:1}.help-link{font-size:11px;text-decoration:none}.help-link span{margin-left:6px}.workspace{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:24px;align-items:start}.workflow{padding:29px 31px 18px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);min-width:0}fieldset{border:0;border-bottom:1px solid var(--line);margin:0 0 25px;padding:0 0 24px;min-width:0}legend{display:flex;align-items:center;gap:12px;font-size:13px;font-weight:650;margin:0 0 17px;padding:0}.step{color:#819087;font:10px ui-monospace,monospace;border:1px solid var(--line);width:25px;height:25px;border-radius:7px;display:grid;place-items:center}.method-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.method{position:relative;border:1px solid var(--line);border-radius:11px;padding:12px;display:grid;align-content:start;gap:4px;cursor:pointer;transition:border-color .15s,background .15s;min-height:100px}.method:hover{border-color:#8faf9f}.method.selected{border-color:#5e9880;background:#f0f6f2}.method input{position:absolute;top:14px;right:12px;accent-color:var(--accent);margin:0;width:12px;height:12px}.method b{font-size:11px;font-weight:650}.method small{font-size:9px;line-height:1.6;color:var(--muted)}.method-icon{font:21px/1.4 system-ui;color:var(--accent);height:30px}.method-tag{font-size:6px;letter-spacing:.8px;font-weight:700;color:var(--accent);position:absolute;right:8px;bottom:9px}.field-note{font-size:10px;color:var(--muted);line-height:1.7;margin:12px 0 0}.drop-zone{padding:26px 15px;border:1px dashed #bacdc5;border-radius:12px;background:#fafcfb;display:flex;flex-direction:column;align-items:center;gap:5px;cursor:pointer;text-align:center}.drop-zone.dragging{background:#e3f0e7;border-color:var(--accent)}.drop-zone b{font-size:12px;font-weight:600}.drop-zone>span:not(.upload-icon){color:var(--muted);font-size:11px}.drop-zone u{color:var(--accent);text-underline-offset:3px}.drop-zone small{font-size:9px;color:#84918c;margin-top:5px}.upload-icon{height:32px;width:32px;border:1px solid #d6e1db;border-radius:9px;background:#fff;color:var(--accent);font-size:22px;display:grid;place-items:center;margin-bottom:4px}.drop-zone:has(+input:focus-visible){outline:2px solid var(--accent)}.carrier-card{padding:14px;background:#f4f7f5;border-radius:11px;display:flex;align-items:center;gap:12px}.carrier-card img{width:50px;height:50px;object-fit:contain;border-radius:6px;background:#dfe6e1}.carrier-card>div{min-width:0;flex:1}.carrier-card b,.carrier-card small{display:block;overflow-wrap:anywhere}.carrier-card b{font-size:12px}.carrier-card small{font-size:10px;color:var(--muted)}.file-icon{font-size:28px;color:var(--accent);width:38px;text-align:center}.icon-button{border:0;background:transparent;color:var(--muted);font-size:24px;min-width:34px;min-height:34px}.warning{font-size:10px;color:#806029;background:#faf5e9;border-radius:8px;padding:10px 12px;margin:12px 0 0}.content-switch{display:flex;gap:17px;margin-bottom:13px}.content-switch button{border:0;border-bottom:2px solid transparent;background:transparent;padding:0 0 5px;color:var(--muted);font-size:11px}.content-switch button[aria-pressed=true]{color:var(--accent);border-color:var(--accent);font-weight:650}.message-wrap{display:block;position:relative}textarea,input[type=password],input[type=text],select{border:1px solid #d8e1dc;border-radius:9px;background:#fafbfa;color:var(--ink);padding:11px 12px;min-width:0}textarea{width:100%;resize:vertical;font-size:12px;line-height:1.8}#message{padding-bottom:31px;min-height:140px}textarea::placeholder,input::placeholder{color:#8a9490}.message-count{position:absolute;right:12px;bottom:13px;font-size:9px;color:var(--muted);pointer-events:none}.secret-drop{display:block;border:1px dashed #bdcec5;padding:22px;border-radius:10px;font-size:12px;color:var(--accent);cursor:pointer}.secret-drop small{display:block;color:var(--muted);font-size:10px;margin-top:5px}.options{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:15px;flex-wrap:wrap;font-size:10px;color:var(--muted)}.options select{font-size:10px;padding:5px;margin-left:5px}.check{display:flex;gap:8px;align-items:center;font-size:11px}.check input{accent-color:var(--accent);width:14px;height:14px;flex-shrink:0;margin:0}.optional{font-size:8px;color:#89968c;border:1px solid var(--line);border-radius:4px;padding:1px 5px;margin-left:auto}.password-row{display:flex;align-items:end;gap:10px;margin-top:15px}.password-row label{flex:1}#password-fields label,#decode-method-wrap{font-size:11px;color:var(--muted)}#password-fields input{display:block;width:100%;margin-top:6px;font-size:12px}#confirm-wrap{display:block;margin-top:12px}#decode-method{display:block;width:100%;margin-top:7px}.action-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.primary{background:var(--accent);border:1px solid var(--accent);color:#fff;border-radius:10px;padding:13px 18px;display:inline-flex;align-items:center;justify-content:center;gap:22px;font-size:11px;font-weight:600;text-decoration:none;min-height:44px;cursor:pointer}.primary:hover{background:#194a40}.subtle{background:transparent;border:1px solid var(--line);border-radius:9px;color:var(--muted);padding:10px 13px;font-size:10px;min-height:40px}.subtle:hover{background:#f1f5f3}.status{font-size:11px;min-height:18px;color:var(--accent);margin:12px 0 0}.error{padding:12px;border-radius:8px;border:1px solid #eac8cd;background:#fcf1f3;color:var(--red);font-size:12px;overflow-wrap:anywhere}
.summary{border:1px solid var(--line);border-radius:var(--radius);padding:25px;background:#f0f4f1;position:sticky;top:24px}.summary-top{display:flex;justify-content:space-between;align-items:center}.summary-dot{height:7px;width:7px;border:2px solid #6e9a80;border-radius:50%;margin-bottom:10px}.summary h2{font-size:20px;letter-spacing:-.6px;line-height:1.3;margin:5px 0 12px;font-weight:600}.summary>p{font-size:11px;line-height:1.85;color:var(--muted);margin:0}.summary dl{margin:26px 0 22px}.summary dl div{display:flex;justify-content:space-between;align-items:start;gap:12px;padding:9px 0;border-bottom:1px solid #dce4df;font-size:10px}.summary dt{color:var(--muted);flex-shrink:0}.summary dd{margin:0;text-align:right;font-weight:550;overflow-wrap:anywhere;max-width:170px}.capacity-wrap>div{display:flex;justify-content:space-between;font-size:10px;gap:8px}.capacity-wrap b{font-weight:550;color:var(--accent)}progress{height:5px;width:100%;appearance:none;display:block;margin:10px 0;border:0;border-radius:3px;background:#dce5df}progress::-webkit-progress-bar{background:#dce5df;border-radius:3px}progress::-webkit-progress-value{background:#639d7a;border-radius:3px}progress::-moz-progress-bar{background:#639d7a;border-radius:3px}.capacity-wrap.over b{color:var(--red)}.capacity-wrap.over progress::-webkit-progress-value{background:var(--red)}.capacity-wrap p{font-size:9px;line-height:1.7;color:#7a8880;margin:0}.privacy-note{display:flex;align-items:start;gap:10px;border-top:1px solid #dce4df;margin-top:24px;padding-top:20px}.privacy-note>span{font-size:24px;color:var(--accent);line-height:1}.privacy-note b{font-size:10px;font-weight:600}.privacy-note p{font-size:9px;color:var(--muted);margin:5px 0 0;line-height:1.8}.summary .delivery-note{margin-top:17px;font-size:9px;color:#78867d}.delivery-note b{font-weight:600}.result{margin-top:24px;border:1px solid #bcd5c7;border-radius:var(--radius);background:#fff;padding:26px 31px}.result-heading{display:flex;align-items:center;gap:14px}.result-check{display:grid;place-items:center;width:38px;height:38px;background:#e9f4ed;border-radius:50%;font-size:20px;color:var(--accent)}.result h2{font-size:20px;margin:0;font-weight:600;letter-spacing:-.5px}.result .eyebrow{font-size:8px;margin-bottom:3px}.result-heading .icon-button{margin-left:auto}.result-content{display:grid;grid-template-columns:minmax(0,1fr) 220px;gap:28px;margin-top:20px}.result-content p{font-size:12px;overflow-wrap:anywhere}.result-actions{display:flex;flex-direction:column;align-items:stretch;gap:10px}.digest{font:9px/1.8 ui-monospace,monospace;color:var(--muted);word-break:break-all}.result-content label{display:block;font-size:11px;color:var(--muted)}#decoded-message{margin-top:8px}.guide{margin:65px 0 38px}.guide-heading{margin-bottom:28px}.guide h2{font-size:27px;letter-spacing:-.9px;font-weight:600;margin:4px 0 9px}.guide-heading>p:not(.eyebrow){font-size:12px;color:var(--muted);max-width:580px}.guide-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;margin-bottom:30px}.guide article{border-top:1px solid var(--line);padding-top:17px}.guide article>span{font-size:8px;color:var(--accent);letter-spacing:1px;font-weight:600}.guide h3{font-size:13px;font-weight:600;line-height:1.5;margin:10px 0}.guide article p{font-size:10px;color:var(--muted);line-height:1.9}.guide article b{font-weight:600;color:#4f6559}.guide details{border-top:1px solid var(--line);font-size:11px;padding:14px 0}.guide details summary{cursor:pointer;color:var(--ink);font-weight:550}.guide details div{max-width:900px;color:var(--muted);font-size:11px;line-height:1.9}.sources{display:flex;flex-wrap:wrap;gap:6px 16px;font-size:9px;color:var(--muted);margin-top:24px}.sources a{color:var(--muted);text-underline-offset:3px}footer{border-top:1px solid var(--line);padding:19px 0 29px;font-size:8px;letter-spacing:1.3px;color:#7f8a86;display:flex;gap:10px}.footer-right{margin-left:auto;letter-spacing:0}body.busy .workflow{cursor:progress}
@media(min-width:1500px){main{max-width:1340px}.workspace{grid-template-columns:minmax(0,1fr) 330px}.method-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.method-tag{position:static;width:fit-content}.method{min-height:130px}.method small{font-size:10px}.workflow{padding:32px 36px}}
@media(max-width:1000px){main{padding:0 24px}.topbar{padding:0 24px}.workspace{grid-template-columns:minmax(0,1fr) 270px;gap:16px}.workflow{padding:24px 22px}.summary{padding:22px 19px}.method-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.intro-art{width:230px}.guide-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.topbar{height:58px;padding:0 18px;gap:15px}.brand{font-size:20px}.breadcrumb{font-size:10px;gap:6px}.breadcrumb>b{font-weight:600}.breadcrumb{display:none}.local-badge{font-size:9px}main{padding:0 16px}.intro{padding:34px 0 28px}.intro-art{display:none}h1{font-size:35px;letter-spacing:-1.5px}.intro p:not(.eyebrow){font-size:12px}.intro br{display:none}.workspace{display:flex;flex-direction:column;gap:16px}.workflow{width:100%;padding:23px 19px 17px}.summary{width:100%;position:static}.summary dl{display:grid;grid-template-columns:1fr 1fr;gap:0 20px;margin:18px 0}.summary h2{font-size:18px}.method-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.method{min-height:97px}.method:last-child{grid-column:1/-1;grid-template-columns:30px 1fr;align-items:center;min-height:auto}.method:last-child .method-icon{grid-row:1/3}.method:last-child small{grid-column:2}.mode-switch button{font-size:11px;padding:8px 12px;gap:7px}.help-link{font-size:10px}.work-head{padding-bottom:16px;gap:8px}.action-row .primary{flex:1;gap:12px;white-space:normal;min-width:200px}.action-row .subtle{padding:10px}.check{font-size:10px}.result{padding:23px 19px}.result-content{grid-template-columns:1fr;gap:16px}.result-actions{flex-direction:row;flex-wrap:wrap}.result-actions .primary{flex:1}.result .eyebrow{font-size:7px;letter-spacing:1px}.result h2{font-size:18px}.guide{margin-top:40px}.guide h2{font-size:24px}.guide-grid{gap:12px 22px}.guide h3{font-size:12px}.guide article p{font-size:10px}.footer-right{display:none}.summary>p{font-size:11px}.privacy-note p,.summary .delivery-note{font-size:10px}.options{gap:12px}.options #depth-wrap{width:100%}.drop-zone{padding:25px 10px}.optional{font-size:7px}.sources{font-size:9px}input[type=password],input[type=text],textarea,select{font-size:16px!important}#decode-method{font-size:13px!important}.options select{font-size:12px!important}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

#carrier-input:focus-visible+label,#secret-input:focus-visible{outline:3px solid #75b6a5;outline-offset:4px}

#secret-file-wrap:has(#secret-input:focus-visible) .secret-drop{outline:3px solid #75b6a5;outline-offset:4px}