*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#f7f7f5;--surface:#fff;--text:#1a1a1a;--muted:#6b6b6b;--border:#e1e1dc;
--green:#6aaa64;--yellow:#c9b458;--gray:#787c7e;--empty:#d3d6da;--link:#3f7f3a}
@media (prefers-color-scheme:dark){:root{--bg:#121213;--surface:#1b1b1c;--text:#f0f0ee;--muted:#8d8d88;
--border:#2f2f30;--green:#538d4e;--yellow:#b59f3b;--gray:#3a3a3c;--empty:#3a3a3c;--link:#7cc275}}
html{-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;background:var(--bg);
color:var(--text);line-height:1.65;font-size:16px}
.wrap{max-width:720px;margin:0 auto;padding:0 20px}
a{color:var(--link)}
.top{border-bottom:1px solid var(--border);background:var(--surface);margin-bottom:36px}
.bar{display:flex;align-items:center;justify-content:space-between;padding-top:16px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--text);text-decoration:none}
.logo{width:30px;height:30px;border-radius:6px;background:var(--green);color:#fff;display:grid;place-items:center;font-weight:800}
.play{font-weight:600;text-decoration:none;font-size:15px}
nav{display:flex;gap:4px 16px;flex-wrap:wrap;padding-top:10px;padding-bottom:12px;font-size:14px}
nav a{color:var(--muted);text-decoration:none}
nav a:hover,nav a[aria-current]{color:var(--text)}
nav a[aria-current]{font-weight:600}
h1{font-size:32px;line-height:1.2;letter-spacing:-.5px;margin-bottom:14px}
h2{font-size:21px;line-height:1.3;margin:36px 0 10px}
p,ol,ul.list{margin-bottom:14px}
ol,ul.list{padding-left:22px}
li{margin-bottom:8px}
.lede{font-size:18px;color:var(--muted)}
.cards{list-style:none;display:grid;gap:12px;margin:24px 0}
.cards a{display:block;padding:16px 18px;border:1px solid var(--border);border-radius:12px;background:var(--surface);
text-decoration:none;color:var(--text)}
.cards a:hover{border-color:var(--green)}
.cards strong{display:block;margin-bottom:2px}
.cards span{color:var(--muted);font-size:15px}
figure.board{margin:22px 0;display:flex;flex-direction:column;align-items:center;gap:6px}
figcaption{font-size:14px;color:var(--muted);margin-top:6px;text-align:center;max-width:440px}
.row{display:flex;gap:6px}
.t{width:52px;height:52px;display:grid;place-items:center;font-weight:800;font-size:26px;color:#fff;
text-transform:uppercase}
.t.green{background:var(--green)}.t.yellow{background:var(--yellow)}.t.gray{background:var(--gray)}
.t.empty{border:2px solid var(--empty)}
.t.sm{width:30px;height:30px;font-size:16px;flex:none}
.key{display:flex;gap:12px;align-items:center}
.arrow{color:var(--muted);font-size:18px;line-height:1}
.puzzle{border-top:1px solid var(--border);margin-top:28px}
.tag{font-size:13px;font-weight:500;color:var(--muted);margin-left:8px}
details{text-align:center;margin-bottom:12px}
summary{cursor:pointer;color:var(--link);font-weight:600}
.answer{font-size:24px;font-weight:800;letter-spacing:.15em;margin-top:8px}
.pager{display:flex;justify-content:space-between;margin:48px 0 24px;padding-top:20px;border-top:1px solid var(--border);font-weight:600}
.pager a{text-decoration:none}
footer{padding-bottom:48px;font-size:14px}
.muted{color:var(--muted)}
@media (max-width:420px){.t{width:44px;height:44px;font-size:22px}}
@media print{.top nav,.play,.pager,footer,summary{display:none}body{background:#fff;color:#000}
.t{print-color-adjust:exact;-webkit-print-color-adjust:exact}}