:root{--ink:#15171a;--sub:#555b63;--line:#c9cdd2;--pale:#eef0f2;--y:#f2c200;--red:#c8321f;--bg:#ffffff}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'Zen Kaku Gothic New','Hiragino Sans','Yu Gothic',sans-serif;font-size:15px;line-height:1.6}
a{color:var(--sub)}a:hover{color:var(--ink)}
.mono{font-family:'DM Mono',monospace}.mincho{font-family:'Zen Old Mincho',serif;font-weight:900}
.small{font-size:13px;color:var(--sub)}
.hd{height:56px;padding:0 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:2px solid var(--ink);max-width:720px;margin:0 auto}
.logo{font-family:'Zen Old Mincho',serif;font-weight:900;font-size:19px;letter-spacing:.12em;color:var(--ink);text-decoration:none}
.link{min-height:44px;border:0;background:none;color:var(--sub);font:inherit;font-size:14px;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.wrap{max-width:720px;margin:0 auto;padding:18px 20px 28px}
#topView,#resultView{display:flex;flex-direction:column;gap:18px;max-width:430px;margin:0 auto}
#topView[hidden],#resultView[hidden]{display:none}
.h1{margin:0;font-family:'Zen Old Mincho',serif;font-weight:900;font-size:24px;line-height:1.4}
.lead{margin:-12px 0 0;font-size:14px;color:var(--sub)}
.how{border:1px solid var(--ink);padding:12px 16px;margin:0 auto 18px;max-width:430px}
.how h2{margin:0 0 6px;font-family:'Zen Old Mincho',serif;font-size:18px}
.how ol{margin:0;padding-left:1.3em;font-size:14px}
.odai{display:flex;flex-direction:column}
.odai-top{display:flex;justify-content:space-between;font-size:13px;color:var(--sub);padding-bottom:6px}
.stripe{height:12px;background:repeating-linear-gradient(-45deg,var(--ink) 0 10px,var(--y) 10px 20px)}
.odai-word{background:var(--ink);color:#fff;padding:16px 8px 18px;text-align:center;font-family:'Zen Old Mincho',serif;font-weight:900;font-size:clamp(30px,11vw,56px);line-height:1.2;letter-spacing:.06em;word-break:keep-all;overflow-wrap:anywhere}
.bracket{display:flex;align-items:flex-end;gap:8px;margin-top:10px;font-size:13px}
.bracket i{flex:1;height:8px;border-bottom:1px solid var(--ink)}
.bracket i:first-child{border-left:1px solid var(--ink)}.bracket i:last-child{border-right:1px solid var(--ink)}
.bracket span{line-height:1;transform:translateY(5px)}
.mora{display:grid;margin-top:12px;border:1px solid var(--ink);text-align:center}
.mora div{padding:6px 0;border-right:1px solid var(--line);display:flex;flex-direction:column;min-width:0}
.mora div:last-child{border-right:0}
.mora b{font-size:20px;line-height:1.3}.mora span{font-family:'DM Mono',monospace;font-size:14px;color:var(--sub)}
.btn-sub{margin-top:10px;align-self:center;min-height:44px;padding:0 18px;border:1px solid var(--ink);background:#fff;color:var(--ink);font:inherit;font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:8px;cursor:pointer}
.form{display:flex;flex-direction:column;gap:8px}
.form label{font-size:14px;font-weight:700}
.form input{width:100%;height:56px;padding:0 14px;border:2px solid var(--ink);border-radius:0;background:#fff;color:var(--ink);font:inherit;font-size:22px;font-weight:700}
.form input:focus{outline:3px solid var(--y);outline-offset:0}
.hint{margin:0;font-size:12px;color:var(--sub)}
.err{margin:0;padding:10px 12px;border:1px solid var(--red);color:var(--red);font-size:14px;background:#fff7f5}
.btn{display:flex;align-items:center;justify-content:center;height:56px;border:0;border-radius:0;background:var(--ink);color:#fff;font:inherit;font-size:17px;font-weight:700;letter-spacing:.12em;cursor:pointer;text-decoration:none}
.btn:hover{color:#fff;background:#2c2f34}
.btn[disabled]{opacity:.6;cursor:wait}
.btn-o{min-height:48px;border:1px solid var(--ink);border-radius:0;background:#fff;color:var(--ink);font:inherit;font-size:15px;font-weight:700;cursor:pointer}
.ladder{border:1px solid var(--ink);display:flex;flex-direction:column}
.ladder-hd{padding:12px 14px 10px;display:flex;align-items:baseline;justify-content:space-between;border-bottom:1px solid var(--ink);gap:8px}
.ladder-hd .mincho{font-size:22px}
.ladder-note{margin:0;padding:10px 14px;font-size:13px;border-top:1px solid var(--ink)}
.rows{display:grid;grid-template-columns:76px 1fr;font-size:14px}
.rows3{grid-template-columns:74px 1fr auto;border:1px solid var(--ink);border-bottom:0}
.rows>div{min-height:38px;display:flex;align-items:center;border-bottom:1px solid var(--line)}
.rows .no{padding-left:12px;font-family:'DM Mono',monospace;font-size:12px;color:var(--sub)}
.rows .nm{font-weight:700;font-size:15px}
.rows .st{justify-content:flex-end;padding-right:12px;font-size:12px;color:var(--sub);text-align:right}
.rows .lock{background:var(--pale);color:var(--sub)}
.rows .lock.nm{letter-spacing:.2em}
.rows .cur{background:var(--ink);color:#fff}
.pair{margin:0;font-size:14px;font-weight:700}
.conv{margin:-12px 0 0;font-size:13px;color:var(--sub)}
.pic{position:relative;border:1px solid var(--ink);line-height:0;background:#fff}
.pic img{width:100%;height:auto;display:block}
.pic.dark{background:#000}
.stamp{position:absolute;right:-12px;bottom:-12px;width:54px;height:54px;border:2px solid var(--red);border-radius:50%;color:var(--red);background:#fff;display:flex;align-items:center;justify-content:center;font-family:'Zen Old Mincho',serif;font-weight:900;font-size:22px;line-height:1;transform:rotate(-8deg)}
.cap{margin:-8px 0 0;font-size:12px;color:var(--sub)}
.score{display:flex;align-items:flex-end;gap:14px}
.score-n{display:flex;flex-direction:column;flex:none}
.score-n .small{line-height:1.2}
.big{font-weight:500;font-size:88px;line-height:1;letter-spacing:-.04em}
.score-g{display:flex;flex-direction:column;padding-bottom:6px;min-width:0}
.gname{font-size:clamp(22px,7vw,32px);line-height:1.25;overflow-wrap:anywhere}
.pos{display:flex;flex-direction:column;gap:6px}
.pos-hd{display:flex;justify-content:space-between;align-items:baseline;font-size:14px}
.memo{display:flex;flex-direction:column;border-top:1px solid var(--ink)}
.memo>span{padding:5px 0;border-bottom:1px solid var(--line)}
.memo>span:first-child{padding:8px 0 2px;border:0}
.memo>span:last-child{border-bottom:1px solid var(--ink)}
.judge{display:flex;border:1px solid var(--ink);overflow-x:auto}
.judge .lbl{width:58px;flex:none;display:flex;flex-direction:column;font-size:12px;color:var(--sub);border-right:1px solid var(--ink)}
.judge .col{flex:1 0 34px;display:flex;flex-direction:column;text-align:center;border-left:1px solid var(--line);min-width:34px}
.judge .lbl div,.judge .col div{height:32px;display:flex;align-items:center;border-bottom:1px solid var(--line)}
.judge .lbl div{padding-left:8px}
.judge .col div{justify-content:center;font-size:18px;font-weight:700}
.judge .col .v{font-family:'DM Mono',monospace;font-size:13px;font-weight:400;height:28px}
.judge .lbl .v{height:28px}
.judge .col .j{background:var(--pale);font-size:15px;height:28px;border-bottom:0}
.judge .lbl .j{height:28px;border-bottom:0}
.legend{margin-top:-8px}
.acts{display:flex;flex-direction:column;gap:10px}
.acts2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.best{display:flex;justify-content:space-between;gap:10px;font-size:14px}
.answers{display:flex;flex-direction:column;gap:10px;padding-top:12px;border-top:2px solid var(--ink)}
.ans-hd{display:flex;justify-content:space-between;align-items:baseline}
.ans-hd .mincho{font-size:20px}
.tabs{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--ink)}
.tabs button{min-height:44px;border:0;border-right:1px solid var(--ink);background:#fff;color:var(--ink);font:inherit;font-size:14px;font-weight:700;cursor:pointer}
.tabs button:last-child{border-right:0}
.tabs button[aria-selected=true]{background:var(--ink);color:#fff}
.ans{display:grid;grid-template-columns:1fr auto;gap:2px 10px;padding:10px 0;border-bottom:1px solid var(--line)}
.ans .w{font-family:'Zen Old Mincho',serif;font-weight:900;font-size:19px;line-height:1.35;overflow-wrap:anywhere}
.ans .me{font-family:'Zen Kaku Gothic New',sans-serif;font-size:11px;font-weight:700;color:var(--sub);margin-left:6px}
.ans .h{font-family:'DM Mono',monospace;font-weight:500;font-size:20px;line-height:1.35;text-align:right}
.ans .ops{display:flex;gap:4px;justify-content:flex-end;align-items:center}
.like{min-height:32px;min-width:44px;padding:0 8px;border:1px solid var(--line);background:#fff;color:var(--ink);font-family:'DM Mono',monospace;font-size:13px;display:inline-flex;align-items:center;gap:4px;cursor:pointer}
.like[aria-pressed=true]{border-color:var(--ink);background:var(--y)}
.rep{min-height:32px;padding:0 6px;border:0;background:none;color:var(--sub);font:inherit;font-size:11px;text-decoration:underline;text-underline-offset:2px;cursor:pointer}
.rep[disabled]{text-decoration:none;cursor:default}
.empty{padding:14px 0;color:var(--sub);font-size:14px}
.ft{max-width:720px;margin:0 auto;padding:18px 20px 28px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:6px 16px;font-size:12px;color:var(--sub)}
.gauge{position:relative;height:10px;margin:-6px 0 14px;background:var(--pale);border:1px solid var(--ink)}
.gauge i{position:absolute;left:0;top:0;bottom:0;width:var(--p,0%);background:repeating-linear-gradient(-45deg,var(--ink) 0 6px,var(--y) 6px 12px)}
.gauge span{position:absolute;top:12px;font-size:11px;color:var(--sub)}.gauge span:first-of-type{left:0}.gauge span:last-of-type{right:0}
@media (min-width:760px){
 .wrap{padding-top:28px}
 #topView,#resultView,.how{max-width:600px}
 .hd{max-width:640px}.ft{max-width:640px}
 body{font-size:16px}.small,.hint,.rows .st,.ans .me{font-size:14px}.rows{font-size:15px}.rows .no{font-size:13px}
 .ladder .rows{grid-template-columns:76px 1fr}
 .like{min-height:40px;min-width:56px;font-size:15px}.rep{min-height:40px;font-size:13px}
}