:root{color-scheme:dark;--bg:#1b2226;--panel:#242d31;--field:#1d262a;--line:#3c494d;--text:#e5e9e5;--muted:#a3b1b0;--accent:#a9c5b1;--accent-dark:#17221b;--highlight:#e6b878;font-family:system-ui,-apple-system,'Segoe UI',sans-serif;font-size:15px}*{box-sizing:border-box}body{margin:0;background:var(--bg) url("topography.svg") center top / 1050px auto repeat;color:var(--text);line-height:1.5}.shell{max-width:800px;margin:0 auto;padding:0 26px}.header{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:27px 0 25px;border-bottom:1px solid var(--line)}.identity{display:flex;align-items:center;gap:14px}.identity-icon{display:grid;place-items:center;width:42px;height:42px;background:#303d3c;border:1px solid #53645f;color:var(--accent);font:700 16px ui-monospace,monospace;border-radius:5px}.identity h1{font-size:17px;line-height:1.2;letter-spacing:-.02em;margin:0;font-weight:650}.identity p{font:12px ui-monospace,monospace;color:var(--muted);margin:5px 0 0}.version{font:12px ui-monospace,monospace;color:var(--muted);white-space:nowrap}.intro{padding:38px 0 28px}.intro h2{font-size:28px;font-weight:600;letter-spacing:-.035em;margin:0 0 8px}.intro p{color:var(--muted);margin:0;max-width:570px;font-size:14px}.tool{background:rgba(36,45,49,.97);border:1px solid var(--line);border-radius:7px;overflow:hidden}.section{padding:28px 30px}.section+.section{border-top:1px solid var(--line)}.section-heading{display:flex;align-items:center;gap:13px;margin-bottom:22px}.number{font:12px ui-monospace,monospace;color:var(--accent)}h3{font-size:15px;font-weight:650;margin:0}.mode-fieldset{border:0;padding:0;margin:0}.mode-switch{display:flex;background:var(--field);border:1px solid var(--line);border-radius:5px;padding:4px;gap:4px;width:fit-content;max-width:100%}.mode-switch label{cursor:pointer;position:relative}.mode-switch input{position:absolute;opacity:0;width:100%;height:100%;margin:0}.mode-switch span{display:block;padding:9px 19px;color:var(--muted);font-size:13px;border-radius:3px}.mode-switch input:checked+span{background:#43554f;color:#f1f6f0;font-weight:600}.mode-switch label:focus-within span{outline:2px solid var(--accent);outline-offset:1px}.field{margin-top:23px}.field>label{display:block;font-size:13px;font-weight:600;margin-bottom:9px}select,textarea{width:100%;display:block;border:1px solid #59666a;border-radius:4px;background:var(--field);color:var(--text);font:14px system-ui,sans-serif;padding:12px 14px}select{min-height:47px}textarea{resize:vertical;min-height:98px;line-height:1.6}textarea::placeholder{color:#889b9a}.help{font-size:12px;color:var(--muted);margin:9px 0 0}.option{display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;padding:13px 0}.option+.option{border-top:1px solid var(--line)}.option strong{display:block;font-size:13px;font-weight:600}.option small{display:block;font-size:12px;color:var(--muted);margin-top:4px}.option input{width:18px;height:18px;accent-color:var(--accent);flex-shrink:0;cursor:pointer}.actions{border-top:1px solid var(--line);background:#20292d;padding:21px 30px;display:flex;align-items:center;justify-content:space-between;gap:16px}.download-info{display:flex;flex-direction:column;gap:3px}.download-info strong{font:12px ui-monospace,monospace}.download-info span{font-size:11px;color:var(--muted)}button{border:1px solid #f0c58d;background:var(--highlight);color:#27241e;font:650 13px system-ui,sans-serif;padding:12px 17px;border-radius:4px;cursor:pointer;display:flex;align-items:center;gap:23px;justify-content:space-between}button:hover{background:#f1c992}button span{font-size:17px}button:focus-visible,select:focus-visible,textarea:focus-visible,.option input:focus-visible{outline:2px solid var(--highlight);outline-offset:3px}footer{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:20px 0 48px;color:var(--muted);font:11px ui-monospace,monospace}.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}[hidden]{display:none!important}@media(max-width:620px){.shell{padding:0 16px}.header{align-items:flex-start}.version{font-size:10px;white-space:normal;text-align:right}.intro{padding:29px 0 23px}.intro h2{font-size:25px}.section{padding:22px 18px}.actions{padding:20px 18px;align-items:stretch;flex-direction:column}button{width:100%}.mode-switch{width:100%}.mode-switch label{flex:1;text-align:center}.mode-switch span{padding:10px 8px}}

/* Project note: intentionally secondary to the exporter. */
.about{margin-top:26px;padding:25px 28px;background:rgba(29,38,42,.94);border:1px solid var(--line);border-left:3px solid var(--highlight);border-radius:5px}.about-head{display:flex;align-items:center;gap:11px;margin-bottom:11px}.about-marker{font:19px ui-monospace,monospace;color:var(--highlight)}.about h2{font-size:16px;letter-spacing:-.01em;font-weight:600;margin:0}.about p{font-size:13px;line-height:1.75;color:var(--muted);margin:0 0 12px;max-width:680px}.about strong{font-weight:600;color:var(--text)}.about a{color:#f0c58d;text-underline-offset:3px}.about a:hover{color:#ffe0b4}.source-link{display:inline-flex;align-items:center;gap:13px;margin-top:4px;font-size:13px;font-weight:600;text-decoration:none;border-bottom:1px solid #9a805e;padding-bottom:5px}.source-pending{display:block;color:var(--muted);font:12px ui-monospace,monospace;margin-top:9px}.number{color:var(--highlight)}@media(max-width:620px){.about{padding:22px 18px}}@media(prefers-reduced-motion:no-preference){button{transition:background-color .15s ease}}