:root{color-scheme:light;--ink:#1c1c1c;--muted:#595959;--line:#d6d6d6;--paper:#fff;--wash:#f5f5f4;--focus:#174a9c;--space:24px;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans KR",sans-serif;color:var(--ink);background:var(--paper);font-size:16px;line-height:1.65}
*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,.button,select,input[type=text]{border:1px solid #8a8a8a;background:#fff;color:var(--ink);border-radius:0}button,.button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:9px 16px;text-decoration:none;cursor:pointer;font-size:14px;font-weight:500;text-align:center}button:disabled,fieldset:disabled select,fieldset:disabled input{cursor:default;opacity:.5}.primary{color:#fff;background:var(--ink);border-color:var(--ink)}:focus-visible{outline:3px solid var(--focus);outline-offset:3px}a{color:inherit;text-underline-offset:4px}::selection{background:#dbe4f3;color:#111}input{accent-color:var(--ink);caret-color:var(--ink)}input::placeholder{color:#626262}h1,h2,h3,p{margin:0}h1{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.025em;text-wrap:balance}h2{font-size:21px;line-height:1.4;font-weight:700}h3{font-size:16px;font-weight:700}p{overflow-wrap:anywhere}ul,ol{margin:0;padding:0;list-style:none}[hidden]{display:none!important}.sr-only,.skip-link:not(:focus-visible){position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link:focus-visible{display:block;padding:12px;background:#fff;position:fixed;z-index:2;top:12px;left:12px}
.site-header,main,footer{width:min(1120px,calc(100% - 64px));margin-inline:auto}.site-header{display:flex;justify-content:space-between;align-items:center;gap:24px;padding-block:24px}.brand{font-size:22px;font-weight:700;text-decoration:none}.site-header nav{display:flex;gap:24px;font-size:14px}.site-header nav a{padding-block:8px}.intro{padding-block:40px 32px;max-width:70ch}.intro>p{margin-top:14px;color:var(--muted)}.intro .privacy{font-size:14px;color:var(--ink)}.workspace{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(300px,.9fr);gap:40px;align-items:start}.section-head{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:20px}.text-button{font-size:13px;padding:6px 10px;min-height:40px}.drop-zone{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:32px 20px;border:1px dashed #929292;background:var(--wash);text-align:center;min-height:240px}.drop-zone.dragging{outline:3px solid var(--focus);outline-offset:2px}.drop-title{font-size:19px;font-weight:500}.drop-zone>p:not(.drop-title){font-size:14px;color:var(--muted)}.file-label{margin-block:8px}.file-input{position:absolute;width:1px;height:1px;opacity:0;bottom:40px;left:50%}.drop-zone:focus-within{outline:3px solid var(--focus);outline-offset:3px}.small{font-size:13px;color:var(--muted);line-height:1.7}.files-panel>#selection-summary{margin-top:12px}.file-list{display:grid;gap:8px;margin-top:20px}.file-row{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid var(--line);min-width:0}.file-info{min-width:0;flex:1}.file-name{font-weight:500;overflow-wrap:anywhere;line-height:1.5;font-size:14px}.file-meta{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}.file-order{display:flex;flex-wrap:wrap;gap:4px;justify-content:flex-end;flex-shrink:0;max-width:140px}.file-order button{padding:6px 9px;min-height:40px;font-size:12px}.selection-errors{margin-top:16px;padding:12px;border:1px solid #a24636;color:#742c20;font-size:14px}.selection-errors p+p{margin-top:8px}.settings-panel{padding:24px;background:var(--wash);border:1px solid var(--line);min-width:0}.settings-panel h2{margin-bottom:8px}.settings-panel fieldset{border:0;margin:22px 0 0;padding:0;min-width:0}.field+.field{margin-top:20px}.field label{display:block;font-size:14px;font-weight:500;margin-bottom:8px}.field select,.field input[type=text]{width:100%;min-height:46px;padding:9px 12px;font-size:14px}.field input[type=range]{width:100%;margin:0;min-height:32px}.field .small{margin-top:7px}.field output{float:right;font-variant-numeric:tabular-nums}.operation-note{margin-top:20px;font-size:13px;color:var(--muted)}.convert-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}.convert-actions #convert{flex:1}progress{appearance:auto;accent-color:var(--ink);width:100%;height:10px;margin-top:18px}.status{font-size:13px;margin-top:12px;color:var(--muted);min-height:22px}.notice{font-size:14px;padding:12px;border:1px solid #a24636;color:#742c20;margin-top:16px;background:#fff}.results-panel{margin-top:40px;padding:24px;border:1px solid var(--line)}.results-panel h2{margin-bottom:5px}.results{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-bottom:16px}.result-row{display:flex;gap:14px;align-items:center;padding:14px;background:var(--wash);min-width:0}.result-image{width:64px;height:64px;object-fit:contain;background:repeating-conic-gradient(#ececec 0 25%,#fff 0 50%) 0/12px 12px;border:1px solid var(--line)}.result-info{min-width:0;flex:1}.result-info p{font-size:14px;overflow-wrap:anywhere}.result-info .small{font-size:12px}.result-download{min-height:44px;display:inline-flex;align-items:center;white-space:nowrap;font-size:13px}.usage{margin-top:64px;margin-bottom:56px;max-width:100%}.usage-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:24px}.usage-grid p{font-size:14px;color:var(--muted);margin-top:8px;max-width:65ch}details{margin-top:24px;font-size:14px;padding:18px;border:1px solid var(--line)}summary{cursor:pointer;font-weight:500;min-height:28px}details p{margin-top:14px;max-width:85ch;color:var(--muted)}footer{display:flex;justify-content:space-between;gap:16px;font-size:13px;padding-block:24px;color:var(--muted)}#boot-message{margin-block:20px}.workspace.loading{opacity:.65;pointer-events:none}
@media(max-width:780px){.site-header,main,footer{width:calc(100% - 40px)}.site-header{padding-block:18px;gap:12px}.site-header nav{gap:14px;font-size:13px}.intro{padding-block:28px}.workspace{grid-template-columns:1fr;gap:28px}.settings-panel{padding:22px}.results{grid-template-columns:1fr}.usage-grid{grid-template-columns:1fr;gap:24px}.usage{margin-top:44px}.results-panel{padding:20px}.results-panel>.section-head{align-items:flex-start;flex-direction:column}.result-row{padding:12px}footer{flex-direction:column}.file-order{max-width:124px}.drop-zone{min-height:225px}}
@media(max-width:380px){.site-header{align-items:flex-start;flex-direction:column}.site-header nav{gap:20px}h1{font-size:28px}.file-row{align-items:flex-start;flex-wrap:wrap}.file-order{max-width:none;width:100%}.settings-panel{padding:18px}.result-image{width:48px;height:48px}.result-row{gap:10px}.result-download{font-size:12px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
.results{align-items:start}
.conversion-row{align-items:flex-start}.conversion-row .file-info>select{width:100%;min-height:44px;margin-top:12px;padding:8px;font-size:14px}.route-info{margin-top:6px}.file-status{font-size:13px;margin-top:8px;font-weight:500}.file-status:empty{display:none}.sheet-options{padding:12px;margin-top:12px}.sheet-options .field{margin-top:12px}.check-label{display:flex;align-items:center;gap:8px;min-height:44px;font-size:14px}.check-label input{width:18px;height:18px}.result-actions{display:flex;flex-direction:column;gap:6px;align-items:flex-end}.result-actions button{font-size:12px;padding:6px 8px}.result-row{flex-wrap:wrap}.pdf-preview{width:100%;height:auto;max-height:600px;object-fit:contain;background:#fff}.support-table{overflow-x:auto;margin-top:16px}.support-table table{width:100%;border-collapse:collapse;text-align:left;font-size:13px}.support-table th,.support-table td{border:1px solid var(--line);padding:10px;vertical-align:top}.support-table th{font-weight:500}.support-table thead{background:var(--wash)}#upload-notice{border-color:var(--line);color:var(--ink)}#recovery-panel>button{margin-top:16px}
@media(max-width:600px){.conversion-row{flex-direction:column}.conversion-row .file-info{width:100%}.conversion-row .file-order{max-width:none;width:100%}#recovery-list .file-row{flex-direction:column;align-items:flex-start}.result-actions{align-items:flex-start}}