:root{
  --bg:#fbfaf7;--fg:#1d2330;--muted:#5d6678;--link:#1f4aa8;--visited:#6b3fa0;--accent:#c8372d;
  --card:#ffffff;--border:#e2dfd6;--mark:#fff1a8;--mark-fg:#1d2330;--soft:#f1efe8;--ok:#1d7a46;--shadow:0 1px 3px rgba(20,30,50,.08);
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#14171d;--fg:#e6e8ee;--muted:#9aa3b5;--link:#8fb4ff;--visited:#c3a1ef;--accent:#ff7a6e;
    --card:#1c2029;--border:#2c3240;--mark:#5a4a00;--mark-fg:#fff4c2;--soft:#212633;--ok:#6fd49a;--shadow:none;
  }
}
:root[data-theme="dark"]{
  --bg:#14171d;--fg:#e6e8ee;--muted:#9aa3b5;--link:#8fb4ff;--visited:#c3a1ef;--accent:#ff7a6e;
  --card:#1c2029;--border:#2c3240;--mark:#5a4a00;--mark-fg:#fff4c2;--soft:#212633;--ok:#6fd49a;--shadow:none;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);line-height:1.7;
  font-family:system-ui,-apple-system,"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic UI","Yu Gothic","Meiryo","Noto Sans CJK JP","Noto Sans JP",sans-serif;
  font-size:16px}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
a:visited{color:var(--visited)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
mark{background:var(--mark);color:var(--mark-fg);padding:0 .1em;border-radius:2px;font-weight:600}
.wrap{max-width:760px;margin:0 auto;padding:0 16px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ロゴ */
.logo{display:inline-flex;align-items:center;gap:.4em;color:var(--fg);font-weight:700;letter-spacing:.06em}
.logo:hover{text-decoration:none}.logo:visited{color:var(--fg)}
.logo svg{width:1.3em;height:1.3em;flex:none}

/* ホーム */
.home{min-height:100vh;display:flex;flex-direction:column}
.home main{flex:1;display:flex;flex-direction:column;justify-content:center;padding:8vh 0 4vh}
.home .logo{font-size:clamp(2.4rem,9vw,3.6rem);justify-content:center;width:100%;margin-bottom:.4em}
.tagline{text-align:center;color:var(--muted);margin:0 0 1.6rem;font-size:.95rem}
.chips{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center;margin-top:1.2rem}
.chip{display:inline-block;padding:.25rem .8rem;border:1px solid var(--border);border-radius:999px;background:var(--card);color:var(--fg);font-size:.88rem}
.chip:visited{color:var(--fg)}
.stat{margin-top:1.8rem;text-align:center;color:var(--muted);font-size:.85rem}
.empty-note{margin:1.5rem auto 0;max-width:34em;padding:.9rem 1.1rem;border:1px dashed var(--border);border-radius:10px;background:var(--card);font-size:.9rem}
.empty-note code{background:var(--soft);padding:.1em .4em;border-radius:4px}

/* 検索ボックス */
.searchbox{position:relative;display:flex;gap:.5rem}
.searchbox input[type=search]{flex:1;min-width:0;font:inherit;font-size:1.05rem;padding:.75rem 1.1rem;border:1px solid var(--border);
  border-radius:999px;background:var(--card);color:var(--fg);box-shadow:var(--shadow);-webkit-appearance:none;appearance:none}
.searchbox input[type=search]::-webkit-search-cancel-button{-webkit-appearance:none}
.searchbox button[type=submit]{font:inherit;padding:0 1.4rem;border:0;border-radius:999px;background:var(--accent);color:#fff;font-weight:700;cursor:pointer}
.searchbox button[type=submit]:hover{filter:brightness(1.07)}
.sug{position:absolute;left:0;right:5.5rem;top:calc(100% + 6px);margin:0;padding:.3rem 0;list-style:none;background:var(--card);
  border:1px solid var(--border);border-radius:14px;box-shadow:0 8px 24px rgba(0,0,0,.18);z-index:20;overflow:hidden}
.sug li{padding:.45rem 1.1rem;cursor:pointer;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.sug li.on,.sug li:hover{background:var(--soft)}
.sug li.hist::before{content:"↺ ";color:var(--muted)}
.sug li.clear{color:var(--muted);font-size:.82rem;border-top:1px solid var(--border);margin-top:.2rem}

/* 結果ページ */
.top{position:sticky;top:0;z-index:10;background:var(--bg);border-bottom:1px solid var(--border);padding:.7rem 0}
.top .wrap{display:flex;align-items:center;gap:.9rem}
.top .logo{font-size:1.25rem}
.top .searchbox{flex:1;min-width:0}
.top .searchbox input[type=search]{padding:.5rem 1rem;font-size:1rem}
.top .searchbox button[type=submit]{padding:0 1rem}
.top .sug{right:4.2rem}
.icon{font:inherit;border:1px solid var(--border);background:var(--card);color:var(--fg);border-radius:8px;padding:.25rem .55rem;cursor:pointer}
.filters{display:flex;flex-wrap:wrap;gap:.4rem 1.2rem;padding:.7rem 0 .2rem;font-size:.85rem;color:var(--muted)}
.filters .grp{display:flex;align-items:center;gap:.35rem}
.filters a,.filters strong{padding:.1rem .6rem;border-radius:999px}
.filters a{border:1px solid transparent;color:var(--muted)}
.filters a:hover{border-color:var(--border);text-decoration:none}
.filters strong{background:var(--soft);color:var(--fg);font-weight:600;border:1px solid var(--border)}
.info{color:var(--muted);font-size:.85rem;margin:.5rem 0 1rem}
.notes{font-size:.85rem;color:var(--muted);margin:.4rem 0}
.answer{border:1px solid var(--border);background:var(--card);border-radius:14px;padding:.9rem 1.2rem;margin:.8rem 0 1.2rem;box-shadow:var(--shadow)}
.answer .a-title{font-size:.78rem;color:var(--muted);letter-spacing:.05em}
.answer .a-expr{color:var(--muted);margin-top:.15rem;word-break:break-all}
.answer .a-value{font-size:1.9rem;font-weight:700;line-height:1.3;word-break:break-all}
.answer .a-note{color:var(--muted);font-size:.85rem}
.result{margin:0 0 1.5rem;padding:.2rem .5rem;margin-left:-.5rem;border-radius:10px;border-left:3px solid transparent}
.result:focus-within{border-left-color:var(--accent);background:var(--soft)}
.result .url{font-size:.8rem;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.result .url b{font-weight:600;color:var(--fg)}
.result h3{margin:.05rem 0 .15rem;font-size:1.15rem;line-height:1.45;font-weight:600}
.result .snip{margin:0;color:var(--fg);opacity:.9;font-size:.95rem;word-break:break-word}
.result .meta{margin-top:.25rem;font-size:.8rem;color:var(--muted);display:flex;flex-wrap:wrap;gap:.2rem .9rem;align-items:center}
.result .meta a,.result .meta button{color:var(--muted)}
.result .meta button{font:inherit;background:none;border:0;padding:0;cursor:pointer;text-decoration:underline;text-decoration-style:dotted}
.copied{color:var(--ok)!important}
.pager{display:flex;flex-wrap:wrap;gap:.4rem;justify-content:center;margin:2rem 0}
.pager a,.pager strong,.pager span{min-width:2.4rem;text-align:center;padding:.3rem .7rem;border:1px solid var(--border);border-radius:8px;background:var(--card)}
.pager strong{background:var(--accent);border-color:var(--accent);color:#fff}
.pager span{border:0;background:none;color:var(--muted)}
.none{margin:2rem 0}
.none h2{font-size:1.1rem;margin:0 0 .6rem}
.none ul{color:var(--muted);padding-left:1.2rem}

/* 文書ページ */
.doc h1{font-size:1.4rem;line-height:1.4;margin:1.4rem 0 .4rem}
.doc .kv{display:grid;grid-template-columns:max-content 1fr;gap:.2rem 1rem;font-size:.88rem;color:var(--muted);margin:.8rem 0 1rem}
.doc .kv dt{font-weight:600}.doc .kv dd{margin:0;word-break:break-all}
.doc .body{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:1rem 1.2rem;white-space:pre-wrap;word-break:break-word;line-height:1.9}
.notice{background:var(--soft);border-radius:10px;padding:.6rem .9rem;font-size:.85rem;color:var(--muted);margin:.8rem 0}
.page h1{font-size:1.5rem;margin:1.6rem 0 .6rem}
.page h2{font-size:1.15rem;margin:1.8rem 0 .5rem;border-bottom:1px solid var(--border);padding-bottom:.2rem}
.page table{border-collapse:collapse;width:100%;font-size:.92rem;margin:.6rem 0}
.page th,.page td{border:1px solid var(--border);padding:.35rem .7rem;text-align:left;vertical-align:top}
.page th{background:var(--soft);white-space:nowrap}
.page code,.page pre{background:var(--soft);border-radius:6px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Noto Sans Mono CJK JP",monospace;font-size:.88em}
.page code{padding:.1em .4em}.page pre{padding:.7rem 1rem;overflow:auto}
.bar{height:.7rem;background:var(--accent);border-radius:4px;min-width:2px}
.form{display:flex;gap:.5rem;margin:1rem 0}
.form input[type=url]{flex:1;font:inherit;padding:.55rem .9rem;border:1px solid var(--border);border-radius:8px;background:var(--card);color:var(--fg)}
.form button{font:inherit;padding:.55rem 1.2rem;border:0;border-radius:8px;background:var(--accent);color:#fff;font-weight:700;cursor:pointer}
footer{margin-top:3rem;padding:1.2rem 0 2rem;border-top:1px solid var(--border);font-size:.82rem;color:var(--muted)}
footer .wrap{display:flex;flex-wrap:wrap;gap:.4rem 1.2rem;justify-content:center}
footer a{color:var(--muted)}
.home footer{border:0;margin-top:0}
@media (max-width:560px){
  .top .wrap{flex-wrap:wrap}.top .logo span{display:none}
  .result h3{font-size:1.08rem}
  .kbd-hint{display:none}
}
@media print{.top,footer,.filters,.pager,.searchbox{display:none}}

.logo{cursor:default}
a.logo{cursor:pointer}
.none{margin:2rem 0}
.none h2{font-size:1.1rem}
.loading{color:var(--muted);text-align:center;padding:2rem 0}
footer{margin-top:3rem;padding:1.2rem 0;border-top:1px solid var(--border);color:var(--muted);font-size:.8rem}
footer .wrap{display:flex;flex-wrap:wrap;gap:.4rem 1.2rem;align-items:center;justify-content:center}
footer button{font:inherit;background:none;border:1px solid var(--border);color:var(--muted);border-radius:999px;padding:.1rem .7rem;cursor:pointer}
.noscript{margin:3rem auto;max-width:32em;padding:1rem;border:1px dashed var(--border);border-radius:10px}