html{-webkit-text-size-adjust:100%}
body{margin:0}
[hidden]{display:none!important}
img{max-width:100%}
:root{
  --ground:#EEF1F7; --surface:#FFFFFF; --ink:#0F1730; --muted:#3E4763;
  --line:#C9D0E0; --accent:#1B3FCC; --accent-ink:#FFFFFF; --accent-soft:#DCE3FF;
  --hot:#FFC61A; --hot-ink:#231A00; --good:#0A6B37; --bad:#A3231A;
  --link-fill:#0F1730; --link-ink:#FFFFFF; --locked:#E2E7F1;
  --display:"Unbounded", "Arial Black", system-ui, sans-serif;
  --body:"Atkinson Hyperlegible", "Verdana", system-ui, sans-serif;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ground:#0C1122; --surface:#161D35; --ink:#F1F4FB; --muted:#B9C1D9;
    --line:#2E3860; --accent:#9DB2FF; --accent-ink:#0C1122; --accent-soft:#232E5A;
    --hot:#FFD24D; --hot-ink:#231A00; --good:#6FE0A0; --bad:#FF9A90;
    --link-fill:#F1F4FB; --link-ink:#0C1122; --locked:#1C2442;
  }
}
:root[data-theme="dark"]{
  --ground:#0C1122; --surface:#161D35; --ink:#F1F4FB; --muted:#B9C1D9;
  --line:#2E3860; --accent:#9DB2FF; --accent-ink:#0C1122; --accent-soft:#232E5A;
  --hot:#FFD24D; --hot-ink:#231A00; --good:#6FE0A0; --bad:#FF9A90;
  --link-fill:#F1F4FB; --link-ink:#0C1122; --locked:#1C2442;
}
*{box-sizing:border-box}
body{background:var(--ground);color:var(--ink);font-family:var(--body);font-size:18px;line-height:1.5;padding-inline:16px;padding-block:20px 48px}
.wrap{max-width:580px;margin:0 auto;display:flex;flex-direction:column;gap:22px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
button,input{font:inherit;color:inherit}
:focus-visible{outline:4px solid var(--hot);outline-offset:3px;border-radius:10px}

header{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap}
.mark{font-family:var(--display);font-weight:800;font-size:clamp(34px,9vw,52px);line-height:.9;letter-spacing:-.02em;margin:0}
.mark span{color:var(--accent)}
.meta{font-size:15px;color:var(--muted);text-align:right}
.meta b{display:block;color:var(--ink);font-family:var(--display);font-weight:700;font-size:15px;letter-spacing:.04em}
.tag{margin:0;color:var(--muted);max-width:60ch}

.modes{display:grid;grid-template-columns:1fr 1fr;gap:6px;background:var(--surface);border:2px solid var(--line);border-radius:16px;padding:6px}
.modes button{border:0;background:transparent;border-radius:11px;min-height:52px;font-weight:700;cursor:pointer}
.modes button[aria-pressed="true"]{background:var(--ink);color:var(--ground)}

.panel{background:var(--surface);border:2px solid var(--line);border-radius:20px;padding:20px}

/* the chain */
.chain{list-style:none;margin:0;padding:0;display:flex;flex-direction:column}
.link{position:relative;display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:60px;padding:8px 20px;border-radius:999px;border:3px solid transparent;font-family:var(--display);font-weight:700;font-size:clamp(18px,5vw,24px);letter-spacing:.14em}
.chain > li{position:relative;list-style:none}
.chain > li + li{margin-top:30px}
.chain > li + li::before{content:"";position:absolute;left:50%;top:-30px;width:3px;height:30px;margin-left:-1.5px;background:var(--line)}
.chain .link{position:relative;z-index:1}
.link.end{background:var(--link-fill);color:var(--link-ink)}
.link.solved{background:var(--accent);color:var(--accent-ink)}
.link.given{background:var(--surface);color:var(--bad);border-color:var(--bad)}
.link.open{background:var(--surface);border-color:var(--accent);box-shadow:0 0 0 5px var(--hot)}
.link.locked{background:var(--locked);color:var(--muted);border:3px dashed var(--line)}
.word{position:relative;z-index:1;white-space:nowrap}
.word .blank{opacity:.45}
.len{font-family:var(--body);font-weight:700;font-size:14px;letter-spacing:0;opacity:.85;white-space:nowrap}

.play{display:flex;flex-direction:column;gap:12px;margin-top:22px}
.play label{font-weight:700}
.row{display:flex;gap:10px;flex-wrap:wrap}
.row input{flex:1 1 200px;min-height:56px;border:3px solid var(--ink);border-radius:14px;background:var(--ground);padding:0 16px;font-family:var(--display);font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.btn{min-height:56px;padding:0 22px;border-radius:14px;border:3px solid var(--ink);background:var(--ink);color:var(--ground);font-weight:700;cursor:pointer}
.btn.alt{background:transparent;color:var(--ink)}
.btn.hot{background:var(--hot);color:var(--hot-ink);border-color:var(--hot)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.status{min-height:1.5em;margin:0;font-weight:700}
.status.good{color:var(--good)} .status.bad{color:var(--bad)}
.clock{font-variant-numeric:tabular-nums;color:var(--muted);font-size:15px}

.result h2,.lb h2,.pp h2{font-family:var(--display);font-weight:700;font-size:22px;margin:0 0 6px;text-wrap:balance}
.grid{font-size:28px;letter-spacing:4px;margin:8px 0}
.big{font-family:var(--display);font-weight:800;font-size:44px;line-height:1;margin:6px 0}
.small{font-size:15px;color:var(--muted);margin:0}
textarea{width:100%;min-height:110px;border-radius:12px;border:2px solid var(--line);background:var(--ground);padding:10px;font:15px/1.4 var(--body);color:var(--ink)}

.board{list-style:none;margin:12px 0 0;padding:0;display:flex;flex-direction:column;gap:6px}
.board li{display:grid;grid-template-columns:2.2em 32px 1fr auto;align-items:center;gap:10px;padding:8px 10px;border-radius:12px;background:var(--ground)}
.board li.me{outline:3px solid var(--accent)}
.board .rk{font-family:var(--display);font-weight:800;text-align:center}
.board img{width:32px;height:32px;border-radius:50%}
.board .nm{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-weight:700}
.board .sc{font-variant-numeric:tabular-nums;text-align:right;font-size:15px}
.board .sc b{font-family:var(--display);font-size:18px}

.curtain{text-align:center;padding:28px 12px}
.curtain .who{font-family:var(--display);font-weight:800;font-size:clamp(30px,9vw,46px);line-height:1.05;margin:8px 0 18px;word-break:break-word}
.players{list-style:none;padding:0;margin:10px 0;display:flex;flex-wrap:wrap;gap:8px}
.players li{display:flex;align-items:center;gap:6px;background:var(--accent-soft);border-radius:999px;padding:4px 6px 4px 14px;font-weight:700}
.players button{min-width:44px;min-height:44px;border:0;border-radius:50%;background:transparent;cursor:pointer;font-weight:700}
details{background:var(--surface);border:2px solid var(--line);border-radius:16px;padding:14px 18px}
summary{font-weight:700;cursor:pointer;min-height:32px}
details p,details ul{margin:.6em 0 0;max-width:62ch}
footer{font-size:15px;color:var(--muted);text-align:center}
@media (prefers-reduced-motion:no-preference){
  .link.pop{animation:pop .35s ease-out}
  @keyframes pop{0%{transform:scale(.96)}60%{transform:scale(1.03)}100%{transform:scale(1)}}
  .shake{animation:shake .3s}
  @keyframes shake{25%{transform:translateX(-6px)}75%{transform:translateX(6px)}}
}

.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:14px 0 0;padding:0;list-style:none}
.stats li{background:var(--ground);border-radius:12px;padding:10px 6px;text-align:center}
.stats b{display:block;font-family:var(--display);font-size:24px;font-variant-numeric:tabular-nums}
.stats span{font-size:13px;color:var(--muted)}
.post{display:flex;flex-direction:column;gap:8px;margin-top:16px;padding-top:16px;border-top:2px solid var(--line)}
.post input{flex:1 1 180px;min-height:56px;border:3px solid var(--ink);border-radius:14px;background:var(--ground);padding:0 16px;font-weight:700}
.board .gd{font-size:14px;letter-spacing:1px}
.skip{position:absolute;left:16px;top:-60px;background:var(--hot);color:var(--hot-ink);padding:10px 16px;border-radius:10px;font-weight:700;z-index:10}
.skip:focus{top:12px}
footer a,.tag a{color:var(--accent)}
footer nav{display:flex;gap:18px;justify-content:center;flex-wrap:wrap;margin-top:6px}
.prose{max-width:62ch}
.prose h2{font-family:var(--display);font-size:22px;margin:1.4em 0 .3em}
.board li{grid-template-columns:2.4em 1fr auto}
.board .nm small{display:block;font-weight:400;font-size:14px;letter-spacing:1px}

button.link{width:100%;font:inherit;font-family:var(--display);font-weight:700;font-size:clamp(18px,5vw,24px);letter-spacing:.14em;text-align:left;cursor:pointer;color:inherit}
button.link.locked:hover{border-style:solid;border-color:var(--accent)}
.hint{margin:0;color:var(--muted);font-size:16px}
.howto{margin:0 0 14px;font-size:16px;color:var(--muted)}

.joint{position:absolute;left:50%;top:-25px;transform:translateX(-50%);z-index:2;background:var(--surface);color:var(--good);font-family:var(--body);font-weight:700;font-size:14px;letter-spacing:.06em;line-height:20px;padding:0 8px;border-radius:999px;white-space:nowrap}
.joint.empty{display:none}
.link.typing{padding:4px 20px 4px 8px}
.link.typing input{flex:1 1 auto;min-width:0;min-height:48px;border:0;background:transparent;font-family:var(--display);font-weight:700;font-size:clamp(18px,5vw,24px);letter-spacing:.14em;text-transform:uppercase;color:var(--ink);padding:0 12px;border-radius:999px}
.link.typing input::placeholder{color:var(--muted);opacity:.8}
.link.typing input:focus{outline:none}
.link.typing:focus-within{box-shadow:0 0 0 5px var(--hot),0 0 0 9px var(--accent)}
.link.typing label.len{cursor:text}
.warm h2{font-family:var(--display);font-size:22px;margin:4px 0 14px}

.mark a{color:inherit;text-decoration:none}
.mark a:hover{text-decoration:underline}
button.link .len{color:inherit;opacity:.9}

.modes3{grid-template-columns:1fr 1fr 1fr}
.modes3 button{font-size:16px;padding-inline:4px}
.runbar{margin:0 0 12px;padding:10px 14px;background:var(--accent-soft);border-radius:12px;font-size:16px}