:root{color-scheme:light;--bg:#f7f7f4;--ink:#151714;--muted:#6d716b;--line:#dcded8;--card:#fff;--accent:#315b43;--soft:#e9f0eb;--shadow:0 18px 50px rgba(20,25,20,.08);--surface:#fff;--drop:#fbfcfa;--card-soft:#f6f7f4;--table-head:#f7f8f6;--button-bg:#151714;--button-fg:#fff;--step-bg:#151714;--step-fg:#fff;--drop-line:#b9bdb6;--arrow:#a1a59e;--badge:#eef0ec;--added:#e3f4e7;--removed:#f7e6e3;--modified:#fff1cd}html[data-theme="dark"]{color-scheme:dark;--bg:#101411;--ink:#eef2ed;--muted:#a7b0a8;--line:#2d3730;--card:#171d19;--accent:#8bc49d;--soft:#203127;--shadow:0 18px 50px rgba(0,0,0,.28);--surface:#171d19;--drop:#141915;--card-soft:#1c231e;--table-head:#1a211c;--button-bg:#e9eee9;--button-fg:#111512;--step-bg:#e9eee9;--step-fg:#111512;--drop-line:#465149;--arrow:#758078;--badge:#293129;--added:#193824;--removed:#402421;--modified:#44391e}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.5}.site-header{max-width:1120px;margin:auto;padding:20px 24px;display:flex;justify-content:space-between;align-items:center}.brand{font-weight:850;font-size:20px;color:var(--ink);text-decoration:none;letter-spacing:-.03em}.privacy-pill{font-size:13px;color:var(--muted);background:var(--surface);border:1px solid var(--line);border-radius:999px;padding:8px 12px}main{max-width:1120px;margin:auto;padding:24px 24px 90px}.hero{max-width:850px;margin:12px auto 34px;text-align:center}.eyebrow{font-size:12px;font-weight:850;letter-spacing:.14em;color:var(--accent);margin:0 0 14px}.hero h1{font-size:clamp(46px,7vw,82px);line-height:.98;letter-spacing:-.065em;margin:0}.hero h1 span{color:var(--accent)}.lede{font-size:19px;color:var(--muted);max-width:680px;margin:22px auto 0}.tool,.results{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:28px;box-shadow:var(--shadow)}.uploads{display:grid;grid-template-columns:1fr 48px 1fr;align-items:center}.arrow{text-align:center;font-size:24px;color:var(--arrow)}.drop{min-height:205px;border:1.5px dashed var(--drop-line);border-radius:18px;display:flex;flex-direction:column;align-items:center;justify-content:center;cursor:pointer;padding:25px;text-align:center;transition:.18s;background:var(--drop)}.drop:hover,.drop.drag{border-color:var(--accent);background:var(--soft);transform:translateY(-1px)}.drop input{display:none}.step{width:30px;height:30px;border-radius:50%;background:var(--step-bg);color:var(--step-fg);display:grid;place-items:center;font-weight:800;margin-bottom:12px}.drop strong{font-size:18px}.hint{color:var(--muted);font-size:14px;margin-top:5px}.filename{font-size:13px;font-weight:750;color:var(--accent);margin-top:12px;word-break:break-all}.settings{display:flex;align-items:end;justify-content:center;gap:14px;margin-top:24px;padding-top:24px;border-top:1px solid var(--line)}.settings label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:750}.settings select{min-width:210px;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);font:inherit}button{border:0;border-radius:11px;background:var(--button-bg);color:var(--button-fg);font:inherit;font-weight:800;padding:12px 18px;cursor:pointer}button:hover{opacity:.88}.secondary{background:var(--surface);color:var(--ink);border:1px solid var(--line)}.status{text-align:center;color:var(--muted);font-size:13px;margin:18px 0 0}.hidden{display:none!important}.results{margin-top:28px}.result-head{display:flex;justify-content:space-between;align-items:center;gap:20px}.result-head h2{font-size:32px;letter-spacing:-.04em;margin:0}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:26px 0}.cards article{background:var(--card-soft);border-radius:15px;padding:20px}.cards b{display:block;font-size:32px;letter-spacing:-.04em}.cards span{font-size:13px;color:var(--muted)}.insights{display:grid;gap:10px;margin:20px 0}.insight{background:var(--soft);border-radius:13px;padding:14px 16px;font-size:14px}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px;margin-top:22px}table{width:100%;border-collapse:collapse;font-size:14px}th,td{text-align:left;padding:13px 15px;border-bottom:1px solid var(--line);vertical-align:top}th{font-size:12px;text-transform:uppercase;letter-spacing:.06em;background:var(--table-head)}tbody tr:last-child td{border-bottom:0}.badge{display:inline-block;border-radius:999px;padding:4px 8px;font-size:11px;font-weight:850;background:var(--badge)}.badge.added{background:var(--added)}.badge.removed{background:var(--removed)}.badge.modified{background:var(--modified)}.why{margin:65px 0 0;padding:35px 4px;display:grid;grid-template-columns:1fr 1fr;gap:40px;border-top:1px solid var(--line)}.why h2{font-size:34px;letter-spacing:-.04em;margin:0}.why>p{color:var(--muted);font-size:17px;margin:25px 0 0}footer{text-align:center;color:var(--muted);font-size:12px;padding:30px 20px 45px}@media(max-width:720px){main{padding-top:25px}.site-header{padding:20px}.privacy-pill{font-size:11px}.hero{margin-top:20px}.hero h1{font-size:48px}.uploads{grid-template-columns:1fr}.arrow{transform:rotate(90deg);padding:10px}.tool,.results{padding:18px;border-radius:18px}.settings,.result-head{align-items:stretch;flex-direction:column}.settings select{width:100%}.cards{grid-template-columns:1fr 1fr}.why{grid-template-columns:1fr;gap:5px}}
.drop strong small{font-size:.72em;font-weight:700;color:var(--muted)}
.trust-row{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 18px;margin:14px auto 0;color:var(--muted);font-size:13px}
.trust-row span{white-space:nowrap}
.key-block{display:flex;flex-direction:column;gap:6px;max-width:430px}
.key-help{color:var(--muted);font-size:12px;line-height:1.4;font-weight:500}
@media(max-width:720px){.trust-row{gap:7px 12px}.trust-row span{white-space:normal}.key-block{max-width:none;width:100%}}

.header-actions{display:flex;align-items:center;gap:10px}
.theme-toggle{display:inline-flex;align-items:center;gap:7px;min-width:92px;justify-content:center;padding:8px 11px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;font-size:13px;font-weight:750;box-shadow:none}
.theme-toggle:hover{opacity:1;border-color:var(--accent);background:var(--soft)}
.theme-icon{font-size:14px;line-height:1}
body,.tool,.results,.drop,.privacy-pill,.theme-toggle,.settings select,.cards article,.insight,th,.secondary{transition:background-color .18s ease,color .18s ease,border-color .18s ease}
@media(max-width:720px){.header-actions{gap:7px}.privacy-pill{display:none}.theme-toggle{min-width:auto}.theme-label{display:none}}

.language-control{display:inline-flex;align-items:center;gap:5px;padding:6px 9px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:999px;font-size:13px;font-weight:750}.language-select{appearance:none;border:0;background:transparent;color:var(--ink);font:inherit;font-weight:800;cursor:pointer;outline:none;padding:0 2px}.language-select option{background:var(--surface);color:var(--ink)}.hero h1 .title-main{color:var(--ink)}@media(max-width:720px){.language-control{padding:7px 9px}}

.export-actions{display:flex;align-items:center;justify-content:flex-end;gap:10px;flex-wrap:wrap}@media(max-width:720px){.export-actions{width:100%}.export-actions button{flex:1 1 190px}}