:root{color-scheme:dark;--bg:#151e22;--panel:#1b272b;--ink:#f1eee4;--muted:#abb6b6;--accent:#d5b779;--line:#384447;--paper:#eee9dd;--sans:"Yu Gothic","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;--serif:"Yu Mincho","Hiragino Mincho ProN",Georgia,serif}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:14px;line-height:1.8}
a{color:inherit}
a:focus-visible{outline:2px solid var(--accent);outline-offset:6px}
::selection{background:var(--accent);color:var(--bg)}
main{max-width:1200px;margin:auto;padding:0 48px}
.site-header{display:flex;justify-content:space-between;align-items:center;padding:27px 0;border-bottom:1px solid var(--line);gap:24px}
.brand{font-family:var(--serif);font-size:20px;letter-spacing:.13em;text-decoration:none;display:flex;align-items:center;gap:13px}
.brand-mark{display:grid;place-items:center;width:32px;height:36px;border:1px solid var(--accent);color:var(--accent);font-size:21px}
.header-nav{display:flex;gap:28px;font-size:12px;color:var(--muted)}
.header-nav a{text-decoration:none}
.header-nav a:hover,.header-nav a[aria-current="page"]{color:var(--accent)}
footer{display:flex;justify-content:space-between;gap:16px;border-top:1px solid var(--line);margin-top:54px;padding:24px 0 30px;font-size:10px;color:var(--muted);letter-spacing:.12em}
.document-page .back-link{display:inline-block;margin:32px 0 30px;color:var(--muted);text-decoration:none;font-size:12px}
.document-page .back-link:hover{color:var(--accent)}
.document-page .eyebrow{font:11px/1.6 var(--sans);letter-spacing:.24em;color:var(--accent);margin:0 0 18px;text-transform:uppercase}
.document-page .eyebrow::before{content:"";display:inline-block;width:30px;height:1px;background:var(--accent);vertical-align:middle;margin-right:13px}
.document-page h1{font-family:var(--serif);font-weight:500;font-size:clamp(30px,4.7vw,52px);line-height:1.55;letter-spacing:.065em;margin:0 0 22px}
.document-page .rule{width:64px;height:1px;background:var(--accent);margin:26px 0}
.document-page .tagline{color:var(--muted);line-height:2;margin:0 0 48px;max-width:760px}
.document-page .timeline{border-top:1px solid var(--line)}
.document-page .entry{padding:28px 0;border-bottom:1px solid var(--line)}
.document-page .entry-head{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 16px;margin-bottom:12px}
.document-page .entry-version{color:var(--accent);font-size:12px;letter-spacing:.04em}
.document-page .entry-date{color:var(--muted);font-size:12px}
.document-page .entry-title{flex-basis:100%;font-size:18px;font-weight:500;line-height:1.8}
.document-page .entry-icon{display:none}
.document-page .entry-desc{color:var(--muted);margin:0;line-height:2;max-width:900px;overflow-wrap:anywhere}
.document-page .path{color:var(--accent)}
.document-page .note{margin-top:32px;padding:22px 26px;background:var(--panel);border:1px solid var(--line);font-size:12px;color:var(--muted)}
.document-page .grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,280px),1fr));gap:20px}
.document-page .card{min-width:0;border:1px solid var(--line);background:var(--panel);padding:22px;display:flex;flex-direction:column;gap:14px}
.document-page .thumb{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg)}
.document-page .thumb-placeholder{display:grid;place-items:center;color:var(--muted)}
.document-page .card h2{font:500 22px/1.6 var(--serif);margin:0;overflow-wrap:anywhere}
.document-page .desc{color:var(--muted);line-height:1.9;margin:0;flex-grow:1;overflow-wrap:anywhere}
.document-page .desc-empty{color:var(--muted);font-size:12px}
.document-page .downloads{list-style:none;padding:0;margin:4px 0 0;display:flex;flex-direction:column;gap:10px}
.document-page .downloads a{display:block;border:1px solid var(--accent);padding:10px 14px;text-decoration:none;color:var(--accent);overflow-wrap:anywhere}
.document-page .downloads a:hover{background:#d5b7791f}
.document-page .empty-state{margin:0;padding:54px 26px;background:var(--panel);border:1px solid var(--line);color:var(--muted);text-align:center}
@media(max-width:800px){main{padding:0 26px}.header-nav{gap:18px}}
@media(max-width:580px){main{padding:0 22px}.site-header{padding:20px 0}.brand{font-size:17px}.header-nav{font-size:11px;gap:15px}.header-nav a:first-child{display:none}footer{font-size:9px;flex-wrap:wrap}.document-page .back-link{margin:26px 0}.document-page .tagline{font-size:13px;margin-bottom:32px}.document-page .entry{padding:22px 0}.document-page .entry-title{font-size:16px}.document-page .entry-desc{font-size:13px}.document-page .note{padding:20px}.document-page .grid{gap:16px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}