:root{--bg:#eef2f6;--card:#fff;--ink:#14213d;--mute:#56627c;--line:#cfd8e3;--hi:#fca311;--blue:#2a6f97;--out:#fff3d6}
@media (prefers-color-scheme:dark){:root{--bg:#0e1626;--card:#16223a;--ink:#eef2f6;--mute:#a3b0c8;--line:#2a3a5a;--out:#3a2f12;--blue:#7cc0e8}}
*{box-sizing:border-box}html{scroll-padding-top:env(safe-area-inset-top,0)}
body{margin:0;background:var(--bg);color:var(--ink);font:400 17px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;padding:env(safe-area-inset-top,0) 0 env(safe-area-inset-bottom,0)}
.wrap{max-width:760px;margin:0 auto;padding:12px 16px 40px}
a{color:var(--blue)}
header{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 18px;padding:8px 0 18px}
.logo{font-weight:800;font-size:22px;letter-spacing:-.02em;text-decoration:none;color:var(--ink)}
.logo b{background:var(--hi);color:#14213d;padding:0 6px;border-radius:4px}
header nav{display:flex;flex-wrap:wrap;gap:4px 16px;font-size:15px}
header nav a{color:var(--ink);font-weight:600;text-decoration:none}
header nav a:hover{text-decoration:underline}
.bc{font-size:14px;color:var(--mute);margin:0 0 10px}
h1{font-size:clamp(28px,6vw,42px);line-height:1.1;letter-spacing:-.03em;margin:0 0 10px;font-weight:800}
h2{font-size:22px;margin:30px 0 8px;line-height:1.25}
h3{font-size:18px;margin:20px 0 4px}
.lead{color:var(--mute);margin:0 0 20px}
.panel{background:var(--card);border:2px solid var(--ink);border-radius:14px;padding:20px;box-shadow:5px 5px 0 var(--ink);margin:0 0 8px}
.q{margin:0 0 14px;font-size:19px;line-height:2.2}.q:last-child{margin:0}
input,select{font:inherit;font-weight:600;color:var(--ink);background:var(--bg);border:2px solid var(--line);border-radius:8px;padding:5px 9px;width:7.5em;text-align:center}
select{width:auto}
input:focus-visible,select:focus-visible,summary:focus-visible,a:focus-visible{outline:3px solid var(--blue);outline-offset:2px}
.r{display:inline-block;background:var(--out);border:2px solid var(--hi);border-radius:8px;padding:2px 12px;font-weight:800;min-width:3.5em;text-align:center}
.row{display:flex;flex-wrap:wrap;gap:12px 16px;align-items:center;margin-bottom:14px}
.res{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px}
.res div{background:var(--out);border:2px solid var(--hi);border-radius:10px;padding:8px 12px}
.res small{display:block;color:var(--mute);font-size:13px}.res strong{font-size:22px}
.pub{margin:24px 0;min-height:100px;display:grid;place-items:center;color:var(--mute);font-size:12px;border:1px dashed var(--line);border-radius:8px}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px}
.cards a{display:block;background:var(--card);border:2px solid var(--line);border-radius:12px;padding:12px 14px;text-decoration:none;color:var(--ink)}
.cards a:hover{border-color:var(--ink)}.cards strong{display:block}.cards span{color:var(--mute);font-size:15px}
details{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 14px;margin:8px 0}
summary{cursor:pointer;font-weight:700}
table{border-collapse:collapse;width:100%;font-size:15px}th,td{border:1px solid var(--line);padding:6px 10px;text-align:left}
code{background:var(--out);padding:1px 6px;border-radius:4px}
footer{margin-top:36px;padding-top:16px;border-top:1px solid var(--line);color:var(--mute);font-size:14px}
footer nav{display:flex;flex-wrap:wrap;gap:4px 16px;margin-bottom:8px}
@media (max-width:480px){.panel{padding:14px}.q{font-size:17px}body{font-size:16px}}