/* Upward shared styles */
:root{
  /* papyrus ground, grass-green tiles */
  --bg:#efe6cf; --surface:#f8f2e2; --ink:#14170f; --muted:#6f6b55;
  --tile:#2f5a23; --tile-ink:#fbf7ea; --done:#2f5a23; --done-ink:#fbf7ea;
  --good:#2f5a23; --bad:#14170f; --line:#d9ceae;
  --f-display:"Archivo Black","Arial Black",system-ui,sans-serif;
  --f-body:"Archivo",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-num:"IBM Plex Mono",ui-monospace,Menlo,monospace;
  --ad-h:66px;
  color-scheme:light;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:15px;line-height:1.45;
  padding-bottom:env(safe-area-inset-bottom,0px)}
body.has-ads{padding-bottom:calc(var(--ad-h) + env(safe-area-inset-bottom,0px))}
a{color:var(--tile)}
.wrap{max-width:560px;margin:0 auto;padding-block:12px 28px;
  padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));
  display:flex;flex-direction:column;gap:12px}
.top{display:flex;align-items:flex-end;justify-content:space-between;gap:12px;flex-wrap:wrap}
.logo{font-family:var(--f-display);font-size:2.4rem;line-height:.95;margin:0;letter-spacing:-.02em;color:var(--ink);text-decoration:none}
.logo span{color:var(--tile)}
.meta{font-family:var(--f-num);font-size:.8rem;color:var(--muted);text-align:right}
.theme{display:inline-block;margin-top:4px;font-family:var(--f-body);font-weight:600;font-size:.72rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--tile)}
nav.links{display:flex;gap:6px;flex-wrap:wrap}
nav.links a,nav.links button{font:inherit;font-size:.82rem;font-weight:600;color:var(--ink);background:var(--surface);
  border:1px solid var(--line);border-radius:999px;padding:6px 12px;text-decoration:none;cursor:pointer}
.game-top{align-items:center;flex-wrap:nowrap}
.game-top .logo{font-size:1.7rem;line-height:1}
.game-top .links button,.game-top .links a{padding:5px 11px}
.sub{display:flex;flex-direction:column;align-items:center;gap:2px;text-align:center}
.sub .meta{text-align:center}
.rules{margin:0;color:var(--muted);max-width:60ch}
.rules b{color:var(--ink)}
.strip{display:flex;justify-content:space-between;align-items:center;gap:12px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding-block:6px}
.label{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);font-weight:600}
.lives{display:flex;gap:6px;align-items:center;min-height:20px}
.life{width:14px;height:14px;border-radius:50%;background:var(--tile)}
.life.lost{background:transparent;border:2px solid var(--line)}
.big{font-family:var(--f-num);font-weight:700;font-size:1.1rem;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.board{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}
.tile{all:unset;box-sizing:border-box;cursor:pointer;aspect-ratio:1/1;max-width:100%;min-width:0;
  background:var(--bg);color:var(--ink);border:2px solid var(--tile);border-radius:6px;padding:6px;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:clamp(.62rem,2.5vw,.84rem);font-weight:600;line-height:1.15;
  transition:transform .12s ease,background .2s ease;overflow:hidden;overflow-wrap:anywhere;hyphens:manual}
.tile:hover{transform:translateY(-2px);background:var(--surface)}
.tile:focus-visible{outline:3px solid var(--ink);outline-offset:2px}
.tile.done{background:var(--done);color:var(--done-ink);border-color:var(--done);cursor:default;transform:none;flex-direction:column;gap:3px}
.tile .n{font-family:var(--f-num);font-weight:700;font-size:clamp(.8rem,4.6vw,1.5rem);line-height:1;overflow-wrap:anywhere}
.tile .n.long{font-size:clamp(.55rem,2.2vw,.8rem)}
.tile .c{font-size:.58rem;font-weight:400;color:var(--done-ink);opacity:.82;line-height:1.1}
.tile.revealed{background:transparent;border:2px dashed var(--line);color:var(--muted)}
.tile.revealed .c{color:var(--muted)}
.tile.wrong{animation:shake .35s;background:var(--bad);border-color:var(--bad);color:var(--tile-ink)}
@keyframes shake{25%{transform:translateX(-5px)}50%{transform:translateX(5px)}75%{transform:translateX(-3px)}}
@media (prefers-reduced-motion:reduce){.tile{transition:none}.tile.wrong{animation:none}}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:8px;padding:16px;display:flex;flex-direction:column;gap:12px}
.panel h2{font-family:var(--f-display);font-size:1.4rem;margin:0;font-weight:400}
.panel pre{font-family:var(--f-num);margin:0;white-space:pre-wrap;font-size:.85rem;line-height:1.5}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;text-align:center}
.stats .big{font-size:1.5rem}
.btns{display:flex;gap:8px;flex-wrap:wrap}
button.b{font:inherit;font-weight:600;padding:10px 14px;border-radius:6px;border:1px solid var(--tile);background:var(--tile);color:var(--tile-ink);cursor:pointer}
button.b.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
button.b:focus-visible,nav.links a:focus-visible,nav.links button:focus-visible{outline:3px solid var(--ink);outline-offset:2px}
.note{font-size:.85rem;color:var(--muted);margin:0}
.foot{font-size:.78rem;color:var(--muted);display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.foot a{color:var(--muted)}
/* prose pages */
.prose h1{font-family:var(--f-display);font-weight:400;font-size:2rem;margin:0;text-wrap:balance}
.prose h2{font-size:1.1rem;margin:8px 0 0}
.prose p,.prose li{max-width:65ch}
.archive{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:8px}
.archive a{display:flex;flex-direction:column;gap:2px;background:var(--surface);border:1px solid var(--line);border-radius:6px;padding:10px;text-decoration:none;color:var(--ink)}
.archive .d{font-family:var(--f-num);font-size:.78rem;color:var(--muted)}
.archive .s{font-size:.75rem;font-weight:600}
.archive .s.won{color:var(--good)} .archive .s.lost{color:var(--muted)}
/* bottom ad bar: keep the reserved height so the layout never jumps */
.ad-bar{position:fixed;left:0;right:0;bottom:0;z-index:20;height:calc(var(--ad-h) + env(safe-area-inset-bottom,0px));
  padding:4px max(8px,env(safe-area-inset-right,0px)) env(safe-area-inset-bottom,0px) max(8px,env(safe-area-inset-left,0px));
  background:var(--surface);border-top:1px solid var(--line);display:flex;align-items:center;justify-content:center;overflow:hidden}
.ad-bar .ph{font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.ad-bar ins{display:block;width:100%;max-width:728px;height:58px}

/* how-to-play overlay */
.modal{position:fixed;inset:0;z-index:30;background:rgba(20,23,15,.45);display:flex;align-items:center;justify-content:center;
  padding:max(16px,env(safe-area-inset-top,0px)) max(16px,env(safe-area-inset-right,0px)) max(16px,env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px))}
.modal .panel{max-width:440px;width:100%}

/* difficulty rating */
.diff{display:flex;align-items:center;gap:6px;font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;font-weight:600;color:var(--muted)}
.pips{display:flex;gap:3px}
.pips i{width:8px;height:8px;border-radius:2px;border:1.5px solid var(--tile);display:block}
.pips i.on{background:var(--tile)}
.life{width:12px;height:12px}