:root{--bg: #fbfaf7;--fg: #2a2723;--muted: #6f6a61;--card: #ffffff;--border: #e4e0d8;--ok: #1a7f37;--fail: #c62828;--unknown: #8a8378;--accent: #4c5b8f}@media(prefers-color-scheme:dark){:root{--bg: #191817;--fg: #ece9e2;--muted: #a09a8e;--card: #211f1d;--border: #3a3733;--ok: #4caf6d;--fail: #ef6e63;--unknown: #948d80;--accent: #93a4d8}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font-family:Hiragino Sans,Noto Sans JP,Yu Gothic UI,sans-serif;line-height:1.7}main{max-width:720px;margin:0 auto;padding:2rem 1rem 4rem}.site-head h1{margin:0 0 .25rem;font-size:1.6rem}.beta{font-size:.7em;color:var(--muted);vertical-align:super}.tagline{color:var(--muted);margin:.25rem 0 .5rem;font-size:.92rem}nav a,footer a{color:var(--accent)}textarea,input,select{width:100%;font-family:ui-monospace,Cascadia Mono,monospace;font-size:.85rem;background:var(--card);color:var(--fg);border:1px solid var(--border);border-radius:8px;padding:.6rem}label{display:block;margin:.8rem 0 .3rem;font-size:.9rem}label.checkbox{display:flex;align-items:center;gap:.5rem}label.checkbox input{width:auto}button{margin-top:.8rem;padding:.6rem 1.4rem;font-size:1rem;border:none;border-radius:8px;background:var(--accent);color:#fff;cursor:pointer}button:hover{filter:brightness(1.08)}button.secondary{background:var(--card);color:var(--fg);border:1px solid var(--border);font-size:.9rem}.actions{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.input-msg{color:var(--fail);font-size:.88rem;margin:.8rem 0 0}.playground{margin:0 0 1.2rem;padding:.6rem 1rem;background:var(--card);border:1px dashed var(--border);border-radius:10px;font-size:.9rem}.playground summary{cursor:pointer;color:var(--muted)}.playground[open] summary{margin-bottom:.3rem}.playground-body{max-width:480px;padding:.25rem 0}.playground-note{color:var(--muted);font-size:.85rem;margin:.2rem 0}.filled-flash{animation:filled-flash 1.2s ease-out}@keyframes filled-flash{0%{outline:2px solid var(--accent);outline-offset:1px}to{outline:2px solid transparent;outline-offset:1px}}@media(prefers-reduced-motion:reduce){.filled-flash{animation:none;outline:2px solid var(--accent);outline-offset:1px}}#result{margin-top:2rem}.verdict{font-size:1.25rem;font-weight:700;padding:.8rem 1rem;border-radius:10px;background:var(--card);border:1px solid var(--border)}.verdict-ok{border-color:var(--ok)}.verdict-fail{border-color:var(--fail)}.verdict-unknown{border-color:var(--unknown)}.who{font-size:1.05rem;margin:.8rem 0}.chain-note{color:var(--muted);font-size:.85em}#checklist{list-style:none;padding:0;margin:1rem 0}.check{display:flex;align-items:baseline;gap:.5rem;padding:.5rem .75rem;border-bottom:1px solid var(--border);flex-wrap:wrap}.check .label{font-weight:600}.check-fail .label{color:var(--fail)}details.inline{font-size:.85rem;color:var(--muted)}details.inline summary{cursor:pointer}#scope-card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:1rem 1.25rem;margin:1rem 0}#scope-card h2{margin:0 0 .5rem;font-size:1.05rem}#scope-card dl{margin:0}#scope-card dl>div{display:flex;gap:.75rem;padding:.25rem 0}#scope-card dt{min-width:8.5em;color:var(--muted)}#scope-card dd{margin:0;font-weight:600}pre{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:.8rem;overflow-x:auto;font-size:.78rem}footer{margin-top:3rem;color:var(--muted);font-size:.82rem;border-top:1px solid var(--border);padding-top:1rem}.warn{color:var(--fail);font-size:.85rem}.form{max-width:480px}