:root{--bg:#f6f1e7;--card:#fffdf8;--ink:#1c1f1d;--muted:#555b56;--line:#d8d0bf;--accent:#0a5a3c;--link:#0a5a3c;--ok:#1b6e38;--ok-bg:#e1f2e5;--bad:#a8231b;--bad-bg:#fbe6e3;--sign:#0a5a3c;--sign-ink:#fff;--shadow:0 1px 2px rgba(0,0,0,.06),0 8px 24px rgba(0,0,0,.06);--bar:48px;--btn-ink:#fff}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#111512;--card:#1a201c;--ink:#ecece4;--muted:#a6aca2;--line:#2c352e;--accent:#6fcf97;--link:#7fd6a2;--ok:#7fe0a0;--ok-bg:#16301f;--bad:#ff9a90;--bad-bg:#3a1b18;--shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35);--btn-ink:#0b1a11}}
:root[data-theme="dark"]{--bg:#111512;--card:#1a201c;--ink:#ecece4;--muted:#a6aca2;--line:#2c352e;--accent:#6fcf97;--link:#7fd6a2;--ok:#7fe0a0;--ok-bg:#16301f;--bad:#ff9a90;--bad-bg:#3a1b18;--shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35);--btn-ink:#0b1a11}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--bar) + 12px);-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.55 Georgia,"Iowan Old Style","Palatino Linotype",serif}
a{color:var(--link)}
h1,h2,h3,.ui{font-family:"Helvetica Neue",Arial,system-ui,sans-serif}
.topbar{position:sticky;top:0;z-index:20;height:var(--bar);display:flex;align-items:center;gap:14px;padding:0 max(16px,env(safe-area-inset-left));background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);font:600 14px/1 "Helvetica Neue",Arial,sans-serif;white-space:nowrap}
.topbar a{color:var(--ink);text-decoration:none}
.topbar .home{font-weight:700}
.topnav{display:flex;gap:14px;overflow-x:auto;scrollbar-width:none;min-width:0}
.topnav::-webkit-scrollbar{display:none}
.topnav a{color:var(--muted);padding:6px 0;border-bottom:2px solid transparent}
.topnav a[aria-current="true"]{color:var(--ink);border-color:var(--accent)}
.spacer{flex:1}
.icon-btn{width:36px;height:36px;border-radius:50%;border:1px solid var(--line);background:transparent;color:var(--ink);display:grid;place-items:center;cursor:pointer;flex:none}
.icon-btn svg{display:block}.icon-btn svg[hidden]{display:none}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
main{max-width:760px;margin:0 auto;padding:0 16px 40px}
section{scroll-margin-top:calc(var(--bar) + 12px)}
.hero{padding:28px 0 8px}
h1{font-size:clamp(2rem,7vw,3.2rem);line-height:1.05;margin:0 0 .4em;letter-spacing:-.02em}
.deck{font-size:1.15rem;color:var(--muted);margin:0 0 1.2em;max-width:34em}
.sign{background:var(--sign);color:var(--sign-ink);border:3px solid #fff;outline:3px solid var(--sign);border-radius:10px;padding:18px 20px;text-align:center;font-family:"Helvetica Neue",Arial,sans-serif;box-shadow:var(--shadow)}
.sign .pn{font-size:clamp(1.9rem,8vw,3rem);font-weight:700;line-height:1.1;overflow-wrap:anywhere}
.sign .wh{font-size:.95rem;opacity:.9;margin-top:4px}
.btn{font:700 1rem/1 "Helvetica Neue",Arial,sans-serif;min-height:48px;padding:0 24px;border-radius:999px;border:2px solid var(--accent);background:var(--accent);color:var(--btn-ink);cursor:pointer}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn[disabled]{opacity:.5;cursor:default}
.banner{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:8px;padding:10px 14px;margin:0 0 16px;font:600 .95rem/1.4 "Helvetica Neue",Arial,sans-serif}
.game{margin:20px 0 8px;min-height:120px}
.meta{display:flex;justify-content:space-between;align-items:center;font:600 .85rem/1 "Helvetica Neue",Arial,sans-serif;color:var(--muted);margin-bottom:10px;gap:10px}
.dots{display:flex;gap:5px}
.dots i{width:12px;height:12px;border-radius:50%;border:2px solid var(--line);display:block}
.dots i.now{border-color:var(--accent)}
.dots i.ok{background:var(--ok);border-color:var(--ok)}
.dots i.no{background:var(--bad);border-color:var(--bad)}
.prompt{margin:16px 0 10px;font:600 1rem/1.3 "Helvetica Neue",Arial,sans-serif;color:var(--muted)}
.opts{display:grid;gap:10px;margin:0;padding:0;list-style:none}
.opt{width:100%;display:flex;gap:12px;align-items:center;text-align:left;min-height:56px;padding:10px 14px;border-radius:12px;border:2px solid var(--line);background:var(--card);color:var(--ink);font:700 1.15rem/1.2 "Helvetica Neue",Arial,sans-serif;cursor:pointer;transition:border-color .12s,background .12s}
.opt:hover:not([disabled]){border-color:var(--accent)}
.opt .k{flex:none;width:28px;height:28px;border-radius:50%;border:1.5px solid var(--line);display:grid;place-items:center;font-size:.8rem;color:var(--muted)}
.opt[disabled]{cursor:default}
.opt.right{border-color:var(--ok);background:var(--ok-bg)}
.opt.miss{border-color:var(--bad);background:var(--bad-bg)}
.opt.dim{opacity:.55}
.reveal{margin-top:14px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px;box-shadow:var(--shadow)}
.reveal .v{font:800 1.05rem/1.3 "Helvetica Neue",Arial,sans-serif;margin:0 0 6px}
.reveal .v.ok{color:var(--ok)}.reveal .v.no{color:var(--bad)}
.reveal p{margin:.35em 0}
.reveal .ipa{font-family:"Helvetica Neue",Arial,sans-serif;color:var(--muted);font-size:.95rem}
.reveal .src{font:.85rem/1.4 "Helvetica Neue",Arial,sans-serif;color:var(--muted)}
.reveal .btn{margin-top:10px}
.score{font:800 clamp(3rem,16vw,5rem)/1 "Helvetica Neue",Arial,sans-serif;margin:6px 0 0}
.rank{font:700 1.4rem/1.2 "Helvetica Neue",Arial,sans-serif;margin:4px 0 8px}
.review{list-style:none;margin:16px 0;padding:0;display:grid;gap:6px;font:.95rem/1.35 "Helvetica Neue",Arial,sans-serif}
.review li{display:flex;gap:10px;align-items:baseline;padding:8px 10px;border-radius:8px;background:var(--card);border:1px solid var(--line)}
.review b{min-width:1.2em}.review .ok{color:var(--ok)}.review .no{color:var(--bad)}
.review small{color:var(--muted)}
.row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:14px 0}
.share{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:14px 0;font:600 .85rem/1 "Helvetica Neue",Arial,sans-serif;color:var(--muted)}
.share a,.share button{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:transparent;color:var(--ink);display:grid;place-items:center;cursor:pointer;text-decoration:none;padding:0}
.share a:hover,.share button:hover{border-color:var(--accent);color:var(--accent)}
.share svg{display:block}
@media (pointer:coarse){.share a,.share button{width:44px;height:44px}}
.status{font:.85rem/1.3 "Helvetica Neue",Arial,sans-serif;color:var(--muted);min-height:1.2em}
h2{font-size:1.5rem;line-height:1.2;margin:2.2em 0 .5em}
h2 a.permalink{color:inherit;text-decoration:none}
h2 a.permalink:hover::after{content:" #";color:var(--muted)}
.tw{overflow-x:auto;border:1px solid var(--line);border-radius:10px;background:var(--card)}
table{border-collapse:collapse;width:100%;font:.92rem/1.35 "Helvetica Neue",Arial,sans-serif}
th,td{text-align:left;padding:9px 12px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}
tr:last-child td{border-bottom:0}
td.n{font-weight:700;white-space:nowrap}
.method li{margin:.4em 0}
footer{border-top:1px solid var(--line);padding:22px 16px 40px;text-align:center;font:.9rem/1.5 "Helvetica Neue",Arial,sans-serif;color:var(--muted)}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:var(--card);padding:8px;z-index:30}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media (max-width:420px){body{font-size:16px}.topbar{gap:10px}.sign{padding:14px}}