:root{--bg:#0b0a0d;--bg2:#141217;--card:#1a171d;--ink:#f2ecdf;--mut:#b4ab98;--gold:#d4af37;--gold2:#f3d27a;--warm:#e0824b;--ok:#6fcf97;--bad:#ef6f6c;--line:rgba(212,175,55,.28);--sh:0 10px 30px rgba(0,0,0,.45)}
:root[data-theme=light]{--bg:#faf6ec;--bg2:#f1ead8;--card:#fffdf7;--ink:#1c1812;--mut:#5d5444;--gold:#9a7412;--gold2:#7a5a0a;--warm:#b4521c;--ok:#1e8a4c;--bad:#b3261e;--line:rgba(154,116,18,.35);--sh:0 8px 24px rgba(60,40,0,.12)}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(1200px 600px at 50% -10%,rgba(212,175,55,.12),transparent),var(--bg);color:var(--ink);font:16px/1.65 "Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",sans-serif;padding-bottom:78px}
h1,h2,h3{font-family:Fraunces,Georgia,"Times New Roman",serif;line-height:1.2;margin:.2em 0 .4em}
h1{font-size:clamp(1.7rem,6vw,2.7rem)}h2{font-size:1.55rem;color:var(--gold2)}h3{font-size:1.15rem}
a{color:var(--gold2)}code,.mono{font-family:"Space Mono",ui-monospace,monospace}
.wrap{max-width:900px;margin:0 auto;padding:0 16px}
header.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;gap:10px;padding:10px 16px}
.logo{width:40px;height:40px;border-radius:10px;background:linear-gradient(135deg,var(--gold),var(--warm));color:#150f00;font:700 14px Fraunces,serif;display:grid;place-items:center;cursor:pointer;user-select:none;flex:none}
.brand{flex:1;min-width:0;font:600 .86rem Fraunces,serif;line-height:1.2}.brand small{display:block;color:var(--mut);font:400 .68rem "Space Mono",monospace}
.btn{appearance:none;border:1px solid var(--line);background:var(--card);color:var(--ink);padding:9px 14px;border-radius:12px;font:600 .9rem inherit;font-family:inherit;cursor:pointer;min-height:42px}
.btn:hover{border-color:var(--gold)}.btn.gold{background:linear-gradient(135deg,var(--gold),var(--gold2));color:#1a1300;border:0}
.btn.sm{padding:6px 10px;min-height:34px;font-size:.8rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:18px;margin:14px 0;box-shadow:var(--sh)}
.hero{text-align:center;padding:34px 0 10px}.hero .num{font:700 .8rem "Space Mono",monospace;letter-spacing:.2em;color:var(--gold)}
.hero p.sub{color:var(--mut);max-width:620px;margin:8px auto}
.pill{display:inline-block;padding:3px 10px;border-radius:99px;border:1px solid var(--line);font:.72rem "Space Mono",monospace;color:var(--gold2);margin:2px}
.pill.warn{border-color:var(--warm);color:var(--warm)}.pill.ok{border-color:var(--ok);color:var(--ok)}
nav.bottom{position:fixed;bottom:0;left:0;right:0;z-index:30;background:var(--bg2);border-top:1px solid var(--line);display:flex;overflow-x:auto;padding:6px 6px calc(6px + env(safe-area-inset-bottom))}
nav.bottom button{flex:1 0 auto;min-width:68px;background:none;border:0;color:var(--mut);font:600 .66rem "Be Vietnam Pro",sans-serif;padding:6px 8px;border-radius:10px;cursor:pointer}
nav.bottom button b{display:block;font-size:1.15rem;font-weight:400}nav.bottom button.on{color:var(--gold2);background:rgba(212,175,55,.1)}
table{width:100%;border-collapse:collapse;font-size:.82rem}th,td{border-bottom:1px solid var(--line);padding:8px 6px;text-align:left;vertical-align:top}th{color:var(--gold2);font-family:Fraunces,serif}
tr.us td{background:rgba(212,175,55,.12);font-weight:600}.scroll{overflow-x:auto}
.idea{border-left:3px solid var(--gold);padding:4px 0 4px 14px;margin:16px 0}
.idea .felt{color:var(--warm)}.idea .sumo{color:var(--gold2)}.line{font:600 1.05rem Fraunces,serif;color:var(--gold2)}
.tag{font:.68rem "Space Mono",monospace;color:var(--mut)}
.q{font:italic 1.05rem Fraunces,serif;border-left:3px solid var(--warm);padding-left:12px;margin:10px 0}
.lock{border:1px dashed var(--warm);text-align:center}
input,textarea,select{width:100%;background:var(--bg2);color:var(--ink);border:1px solid var(--line);border-radius:10px;padding:10px;font:inherit}
label{display:block;margin:10px 0 4px;color:var(--mut);font-size:.88rem}
details{margin:8px 0}summary{cursor:pointer;color:var(--gold2);font-weight:600}
.opt{display:block;width:100%;text-align:left;margin:6px 0}.opt.right{border-color:var(--ok)}.opt.wrong{border-color:var(--bad)}
.rate{display:flex;gap:6px;flex-wrap:wrap}.rate button{flex:1;min-width:40px}.rate button.on{background:var(--gold);color:#1a1300}
.row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.grow{flex:1}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media(max-width:620px){.grid2{grid-template-columns:1fr}}
.cols li{margin:4px 0}.kbd{font:.75rem "Space Mono",monospace;background:var(--bg2);padding:2px 6px;border-radius:6px}
.note{font-size:.8rem;color:var(--mut)}.safety{border-color:var(--warm);background:rgba(224,130,75,.08)}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.7);display:none;place-items:center;z-index:50;padding:16px}.modal.on{display:grid}
.modal .card{max-width:420px;width:100%}
.dip{border:6px double var(--gold);padding:30px 22px;text-align:center;background:var(--card);border-radius:8px}
.dip h2{font-size:1.9rem;margin:8px 0}.dip .nm{font:700 2rem Fraunces,serif;color:var(--gold2);border-bottom:1px solid var(--gold);display:inline-block;padding:0 18px}
.pmap svg{width:100%;height:auto;background:var(--bg2);border-radius:14px;border:1px solid var(--line)}
.toast{position:fixed;left:50%;bottom:92px;transform:translateX(-50%);background:var(--gold);color:#1a1300;padding:8px 16px;border-radius:99px;font-weight:600;z-index:60;display:none}
@media print{body.po{background:#fff;padding:0}body.po *{visibility:hidden}body.po .printme,body.po .printme *{visibility:visible;color:#000!important;background:#fff!important;border-color:#8a6a10!important}body.po .printme{position:absolute;left:0;top:0;width:100%}body.po .noprint{display:none!important}}
body.po .printme rect{fill:#fff!important;stroke:#8a6a10!important}body.po .printme text{fill:#000!important}body.po .printme polyline{stroke:#8a6a10!important}