:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#33291b;background:#fffaf2;line-height:1.6;font-synthesis:none;--ink:#33291b;--muted:#73664e;--line:#dfd7c8;--amber:#efb43e;--paper:#fffefb;--soft:#f6efdf;--accent:#8a5517}*{box-sizing:border-box}body{margin:0}a{color:var(--accent);text-underline-offset:4px}a:hover{color:#4c300d}button,input,select,textarea{font:inherit}button,a,input,textarea,select{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #a26a21;outline-offset:3px}.wrap{width:min(1152px,calc(100% - 64px));margin-inline:auto}.site-header{display:flex;align-items:center;justify-content:space-between;min-height:98px;border-bottom:1px solid var(--line)}.brand{display:inline-flex;gap:9px;align-items:center;font-size:23px;line-height:1;font-weight:800;letter-spacing:-.8px;text-decoration:none;color:var(--ink)}.brand span{font-weight:450;margin-left:-9px}.brand img{margin-right:3px}.site-header nav{display:flex;gap:30px}.site-header nav a{font-size:14px;text-decoration:none;font-weight:600;color:var(--muted)}.site-header nav a:hover{text-decoration:underline}.hero{display:grid;grid-template-columns:1fr 320px;gap:60px;align-items:center;padding:64px 0 48px}.eyebrow,.step-label{font-size:11px;font-weight:800;letter-spacing:1.8px;color:var(--accent)}.eyebrow{margin:0 0 18px}h1{font-size:clamp(40px,5.5vw,66px);line-height:1.03;letter-spacing:-3px;margin:0 0 24px;font-weight:750}.hero-copy{font-size:18px;max-width:570px;line-height:1.65;color:var(--muted);margin:0}.hero-note{border-left:3px solid var(--amber);padding:9px 0 9px 24px}.note-mark{font-size:18px;font-weight:800;display:inline-flex;align-items:center;justify-content:center;width:43px;height:30px;border:2px solid var(--ink);border-radius:5px}.hero-note p{font-size:14px;color:var(--muted);margin:15px 0 12px}.hero-note strong{color:var(--ink)}.hero-note a{font-size:12px;font-weight:650}.workbench{background:var(--paper);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 12px 40px #4d37120a}.workbench-top{display:flex;justify-content:space-between;align-items:center;padding:28px 32px 20px;gap:20px}h2{letter-spacing:-.65px;font-size:24px;line-height:1.25;margin:7px 0 0}h3{font-size:17px;line-height:1.4;letter-spacing:-.3px}.button-group{display:flex;gap:9px;flex-wrap:wrap}.button{border:1px solid transparent;border-radius:7px;cursor:pointer;padding:10px 16px;font-size:13px;line-height:1.3;font-weight:650;display:inline-flex;gap:18px;align-items:center;justify-content:center;min-height:40px;transition:background .15s}.button.subtle{background:transparent;color:var(--muted);border-color:var(--line)}.button.subtle:hover{background:var(--soft)}.button.primary{background:var(--amber);color:#33240d;border-color:#df9b25;margin-top:18px;min-width:197px;font-size:15px;min-height:48px}.button.primary:hover{background:#e9a62f}.button.secondary{background:#33291b;color:white;border-color:#33291b}.button.secondary:hover{background:#554128}.button:disabled{cursor:default;background:#eeebe5;color:#929087;border-color:#e2dfd8}.source-panel{padding:0 32px 28px}label{display:block;font-size:13px;font-weight:650;margin-bottom:9px}.file-label{font-size:14px}.file-label span{font-size:12px;font-weight:400;color:var(--muted);display:inline-block;margin-left:7px}input[type=file]{width:100%;background:var(--soft);border:1px dashed #d5c6a5;border-radius:8px;padding:13px;font-size:12px;margin-bottom:22px;color:var(--muted)}input::file-selector-button{font:inherit;font-weight:650;border:1px solid #d6c49f;border-radius:5px;background:var(--paper);color:var(--ink);padding:8px 13px;margin-right:12px;cursor:pointer}textarea{width:100%;display:block;resize:vertical;min-height:160px;border:1px solid var(--line);border-radius:8px;padding:16px;font-family:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",monospace;font-size:13px;line-height:1.6;background:#fffefa;color:#3f3523}textarea::placeholder{color:#958c7f}textarea:focus,input:focus,select:focus{border-color:#b37b29}.field-note{font-size:12px;color:var(--muted);margin:9px 0 0;line-height:1.5}.options-panel{padding:26px 32px 29px;background:#f8f3e9;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.options-heading{margin-bottom:22px}.settings-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:32px;max-width:780px}select,input[type=number]{width:100%;min-height:44px;background:var(--paper);border:1px solid #d7cdbb;border-radius:6px;color:var(--ink);padding:9px 12px;font-size:13px}.offset-controls{display:flex;gap:8px}.offset-controls input{min-width:0;flex:1}.offset-controls select{width:150px;flex-shrink:0}.check-options{display:flex;gap:36px;margin:22px 0 17px;flex-wrap:wrap}.check-options label{display:grid;grid-template-columns:19px 1fr;column-gap:7px;font-weight:600;margin:0;font-size:13px}.check-options input{accent-color:#ad7623;width:16px;height:16px;margin:3px 0 0}.check-options span{grid-column:2;font-size:11px;color:var(--muted);font-weight:400;margin-top:1px}.output-panel{padding:27px 32px}.output-heading{display:flex;align-items:center;justify-content:space-between;gap:12px}.output-badge{font-size:9px;font-weight:750;letter-spacing:1.2px;background:#edf1e6;color:#4d6536;border:1px solid #d7dfca;padding:5px 9px;border-radius:4px}.status{font-size:13px;padding:12px 14px;color:#615238;background:#f6f0e4;border-radius:6px;margin:21px 0 18px;overflow-wrap:anywhere}.status.error{background:#fff0e9;color:#a03921}.warnings{padding:0;list-style-position:inside;margin:0 0 15px;color:#835114;font-size:12px}.warnings:empty{display:none}.warnings li{margin:5px 0;background:#fff5db;padding:9px 12px;border-radius:4px;overflow-wrap:anywhere}textarea[readonly]{background:#faf9f5}.export-row{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:15px}.export-row p{font-size:12px;color:var(--muted);margin:0}.quick-guide{padding:64px 0 54px;border-bottom:1px solid var(--line);display:grid;grid-template-columns:260px 1fr;gap:48px}.quick-guide h2{font-size:28px;line-height:1.25;margin-bottom:18px;letter-spacing:-.9px}.text-link{font-size:12px;font-weight:650}.tip-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px}.tip-number{font-size:12px;color:var(--accent);font-weight:750}.tip-grid h3{margin:13px 0 10px}.tip-grid p{font-size:13px;line-height:1.75;color:var(--muted);margin:0}.faq{max-width:800px;padding:43px 0 62px}.faq h2{margin:0 0 21px}.faq details{border-top:1px solid var(--line);padding:15px 0}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{font-size:14px;font-weight:600;cursor:pointer}.faq details p{font-size:14px;line-height:1.8;color:var(--muted);margin:13px 0 3px}.site-footer{display:grid;grid-template-columns:1fr auto;gap:20px;align-items:start;border-top:1px solid var(--line);padding:35px 0 28px}.site-footer .brand{font-size:18px}.site-footer .brand span{margin-left:-9px}.site-footer p{font-size:12px;color:var(--muted);margin:11px 0}.site-footer nav{display:flex;gap:22px;flex-wrap:wrap}.site-footer nav a{font-size:12px;text-decoration:none;color:var(--muted)}.site-footer nav a:hover{text-decoration:underline}.site-footer .copyright{grid-column:1/-1;font-size:11px;margin:0}.article-main{max-width:790px;margin-inline:auto;padding:60px 0 70px}.article-main h1{font-size:44px;line-height:1.12;letter-spacing:-1.8px;margin-bottom:23px}.article-main .lede{font-size:19px;line-height:1.8;color:var(--muted);margin:0 0 35px}.article-main h2{font-size:25px;margin:34px 0 14px}.article-main h3{margin:24px 0 10px}.article-main p,.article-main li{font-size:15px;line-height:1.85;color:#635741}.article-main ul,.article-main ol{padding-left:23px}.article-main li{margin:7px 0}.article-main code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:12px;background:#f4ecd9;padding:2px 5px;border-radius:3px}.article-main pre{padding:20px;background:#f4ecd9;border:1px solid #e2d4b6;border-radius:8px;overflow-x:auto;font-size:13px;line-height:1.7}.article-main pre code{padding:0;background:transparent}.article-main .callout{background:#f7edce;border-left:3px solid var(--amber);border-radius:0 7px 7px 0;padding:16px 20px;margin:28px 0;font-size:14px}.article-main .article-action{display:inline-flex;text-decoration:none;margin-top:15px}.article-main .updated{font-size:12px;color:var(--muted)}@media(max-width:960px){.hero{grid-template-columns:1fr 265px;gap:30px}.quick-guide{grid-template-columns:1fr;gap:25px}.quick-guide>div:first-child{max-width:500px}.tip-grid{gap:24px}.settings-grid{gap:23px}}@media(max-width:700px){.wrap{width:calc(100% - 36px)}.site-header{min-height:82px}.brand{font-size:20px}.brand img{width:31px;height:31px}.site-header nav{gap:17px}.site-header nav a{font-size:12px}.hero{grid-template-columns:1fr;padding:40px 0 33px;gap:28px}h1{font-size:46px;letter-spacing:-2px}.hero-copy{font-size:16px}.hero-note{padding:8px 0 8px 18px}.hero-note .note-mark{display:none}.hero-note p{margin:0 0 7px}.workbench-top{padding:22px 20px 18px;align-items:flex-start;flex-wrap:wrap}.source-panel{padding:0 20px 22px}.options-panel,.output-panel{padding:23px 20px}.settings-grid{grid-template-columns:1fr;gap:18px}.check-options{gap:17px;flex-direction:column}.output-badge{display:none}.export-row{align-items:flex-start;flex-direction:column}.quick-guide{padding:42px 0;gap:30px}.tip-grid{grid-template-columns:1fr;gap:22px}.tip-grid article{border-left:2px solid var(--line);padding-left:18px}.tip-grid h3{margin:6px 0}.tip-grid p{max-width:500px}.faq{padding:32px 0 42px}.site-footer{grid-template-columns:1fr;padding-top:29px;gap:15px}.site-footer nav{gap:18px}.site-footer .copyright{grid-column:1}.article-main{padding:40px 0 48px}.article-main h1{font-size:36px;letter-spacing:-1.2px}.article-main .lede{font-size:17px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto;transition:none!important}}