:root{color-scheme:dark;--bg:#11151b;--panel:#1b222b;--text:#eef0e9;--muted:#bbc4ce;--accent:#c3e18d;--line:#37434e}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:1rem/1.75 system-ui,"Yu Gothic",Meiryo,sans-serif}
body>header,footer{padding:1rem max(5vw,calc((100vw - 960px)/2));border-block-end:1px solid var(--line)}
header,header nav,.sample-links{display:flex;align-items:center;gap:.6rem 1.25rem;flex-wrap:wrap}header{justify-content:space-between}.brand{color:var(--text);font-size:1.45rem;font-weight:800;text-decoration:none;letter-spacing:.05em}
a{color:var(--accent);text-decoration-color:#70824f;text-underline-offset:.2em}a:hover{color:#f2fada}a:focus-visible,select:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
main{max-width:900px;padding:1rem clamp(16px,4vw,40px) 3rem;margin:auto}.crumb,.english,.small,footer{color:var(--muted);font-size:.86rem}.crumb{margin-bottom:2rem}.kicker{color:var(--accent);font-size:.72rem;font-weight:700;letter-spacing:.15em}
h1,h2,h3{line-height:1.35;overflow-wrap:anywhere}h1{font:700 clamp(2.35rem,7vw,4.3rem)/1.12 Georgia,"Yu Mincho",serif;margin:.5rem 0 1rem}h2{margin:.4rem 0;font-size:1.6rem}.lead{max-width:38em;color:#d4dbe1}
.picker{display:flex;align-items:baseline;flex-wrap:wrap;gap:.6rem 1rem;font-weight:700;margin:1.3rem 0 .5rem}.picker select{font:inherit;min-height:44px;max-width:100%;padding:.4rem .6rem;color:var(--text);background:var(--panel);border:1px solid #687886;border-radius:5px}
.sample-links{font-size:.86rem}.sample-links span{color:var(--muted)}.sample-links a{padding:.4rem 0}.profile{scroll-margin-top:.8rem;margin:1.25rem 0 2rem;padding:clamp(16px,4%,32px);border:1px solid var(--line);border-radius:.7rem;background:var(--panel)}
.profile .english{margin:0}.any{color:var(--text);margin:.8rem 0}.any strong{font-size:1.4rem;color:var(--accent)}.any small{font-size:.9rem;color:var(--muted)}.overlap{display:flex;flex-wrap:wrap;gap:.65rem 2rem;margin:1rem 0}.overlap dt,.hist dt{color:var(--muted);font-size:.83rem}.overlap dd,.hist dd{margin:0}.overlap dd{font-weight:700}
.boards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.4rem}.board-dist{min-width:0;border-top:1px solid var(--line)}.board-dist h3{margin:.8rem 0 .35rem}.board-dist p{margin:.15rem 0}.hist{margin:.75rem 0 1.2rem}.hist>div{display:grid;grid-template-columns:4.2em 1fr;align-items:center;gap:.35em}.hist dd{display:grid;grid-template-columns:minmax(24px,1fr) minmax(3.3em,auto);align-items:center;gap:.5em;font-size:.85rem;font-variant-numeric:tabular-nums}.hist dd span{text-align:right}meter{width:100%;height:.85rem;accent-color:var(--accent)}
aside{max-width:46em}aside p{color:var(--muted)}footer{border-top:1px solid var(--line)}.skip{position:absolute;left:8px;top:-5em;background:var(--bg);padding:.5rem}.skip:focus{top:4px}.sr{position:absolute;clip-path:inset(50%);width:1px;height:1px;overflow:hidden}[hidden]{display:none!important}
@media(max-width:580px){.boards{grid-template-columns:1fr;gap:.3rem}.overlap{gap:.65rem 1rem}.crumb{margin-bottom:1.4rem}header nav{font-size:.84rem}.picker select{width:100%}}
@media print{body{background:white;color:#171717}header,footer,.crumb,.picker,.sample-links,.skip{display:none}.profile{color:#171717;background:white;border-color:#777;break-inside:avoid}.boards{grid-template-columns:repeat(2,minmax(0,1fr))}.any strong,.any small,.profile .english,.small,.overlap dt,.hist dt,.kicker,aside p,.lead{color:#222}}