:root{--bg:#fff;--fg:#1b1f24;--muted:#5b6470;--line:#c3cad3;--soft:#f2f4f7;--accent:#0b7a53;--accent-fg:#fff}
@media (prefers-color-scheme:dark){:root{--bg:#121418;--fg:#e8eaed;--muted:#9aa3ad;--line:#3a414a;--soft:#1c2026;--accent:#4cc38a;--accent-fg:#06281a}}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.55 system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans","Noto Sans JP",sans-serif}
header,main,footer{max-width:1100px;margin:0 auto;padding:12px 16px}
header{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:baseline;justify-content:space-between;border-bottom:1px solid var(--line)}
.brand{font-weight:700;font-size:20px;color:var(--accent);text-decoration:none}
.langs{font-size:14px;color:var(--muted)}a{color:var(--accent)}
h1{font-size:clamp(24px,4vw,34px);line-height:1.2;margin:18px 0 8px}h2{font-size:20px;margin:28px 0 8px}h3{font-size:15px;margin:0 0 6px}
.lead{font-size:18px;color:var(--fg);max-width:760px}.small{font-size:14px;color:var(--muted)}
.facts{display:flex;flex-wrap:wrap;gap:12px;margin:16px 0;padding:0}.facts div{background:var(--soft);border-radius:10px;padding:8px 14px;min-width:120px}
.facts dt{font-size:13px;color:var(--muted)}.facts dd{margin:0;font-size:24px;font-weight:700}
.btn{display:inline-block;background:var(--accent);color:var(--accent-fg);border:0;border-radius:10px;padding:12px 18px;font:inherit;font-weight:600;text-decoration:none;cursor:pointer;min-height:48px}
.btn.ghost{background:transparent;color:var(--accent);border:2px solid var(--accent)}
.scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
svg.bracket{display:block;max-width:none;font:12px system-ui,sans-serif}
svg .box{fill:var(--bg);stroke:var(--fg);stroke-width:1}svg .byebox{fill:var(--soft);stroke-dasharray:4 3}
svg .champ{stroke-width:2}svg .sep{stroke:var(--line)}svg .link{fill:none;stroke:var(--fg);stroke-width:1}
svg .rh{fill:var(--muted);font-weight:600}svg .seed{fill:var(--fg);font-weight:700}svg .byet{fill:var(--muted);font-style:italic}
.names ol{columns:2 220px;padding-left:28px}.names li{margin:6px 0}.names li span{display:inline-block;width:80%;border-bottom:1px solid var(--line);height:1.2em}
.hint{color:var(--muted);font-size:14px;margin:16px 0 4px}
.rounds{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:12px;margin:12px 0}
.rr{border:1px solid var(--line);border-radius:10px;padding:10px;break-inside:avoid}.rr table{border-collapse:collapse;width:100%}
.rr td{padding:3px 2px}.rr .num{font-weight:700;width:2em;text-align:center}.rr .dash{width:1em;color:var(--muted)}
.rr .score{text-align:right;white-space:nowrap}.rr .score span{display:inline-block;width:26px;height:20px;border:1px solid var(--line);border-radius:4px;vertical-align:middle;margin:0 2px}
.rest{font-size:13px;color:var(--muted);margin:6px 0 0}
.grid table{border-collapse:collapse}.grid th,.grid td{border:1px solid var(--line);min-width:30px;height:30px;text-align:center;font-size:13px}
.grid td.x{background:var(--soft)}
table.cmp{border-collapse:collapse;min-width:560px}.cmp th,.cmp td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
.cmp tr:first-child th{font-size:15px}
.better{background:var(--soft);border-left:4px solid var(--accent);border-radius:8px;padding:4px 16px;margin:16px 0}
.cta{margin:36px 0 0;padding:18px 20px;border-radius:14px;background:var(--soft)}.cta h2{margin-top:0}
.cant ul,.tips{padding-left:22px}.cant li,.tips li{margin:6px 0}
.tiles{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0}.tiles a{display:inline-block;padding:10px 14px;min-height:44px;border:1px solid var(--line);border-radius:10px;text-decoration:none}
.sizes ul{display:flex;flex-wrap:wrap;gap:6px;list-style:none;padding:0}.sizes li a,.sizes li b{display:inline-block;min-width:44px;min-height:44px;line-height:44px;text-align:center;border:1px solid var(--line);border-radius:8px;text-decoration:none}
.more li{margin:8px 0}
.calc form{display:flex;flex-wrap:wrap;gap:12px;margin:8px 0 12px}.calc label{display:flex;flex-direction:column;font-size:14px;color:var(--muted)}
.calc input{font:inherit;font-size:18px;width:130px;min-height:48px;padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--bg);color:var(--fg)}
footer{border-top:1px solid var(--line);margin-top:40px;font-size:14px;color:var(--muted)}
.printonly{display:none}
@media print{:root{--bg:#fff;--fg:#000;--muted:#444;--line:#999;--soft:#eee}.noprint{display:none!important}.printonly{display:inline}
 header{display:none}main,footer{max-width:none;padding:0}.lead,.facts{display:none}h1{font-size:18px;margin:0 0 6px}
 .scroll{overflow:visible}svg.bracket{width:100%;height:auto}.sheet{break-inside:auto}footer{margin-top:6px;border:0}}