*{box-sizing:border-box}
:root{
  --paper:#0c0e14; --ink:#ece7d8; --muted:#9a94a8; --line:#2b2f42;
  --panel:#141824; --wall:#3d4460; --floor:#1a1f30; --lit:#ffd97a; --lantern:#ffb13d;
}
@media(prefers-color-scheme:light){
  :root{--paper:#e9e6da;--ink:#1b1e2a;--muted:#5f6172;--line:#cfc9b8;--panel:#faf8f0;--wall:#8b90a8;--floor:#e2ddcc}
}
html,body{margin:0;min-height:100vh}
body{background:var(--paper);color:var(--ink);font-family:ui-sans-system,system-ui,-apple-system,"Segoe UI",Roboto,Inter,sans-serif;display:flex;flex-direction:column}
.back{margin:18px 24px 0;color:var(--muted);text-decoration:none;font-size:14px}
.back:hover{color:var(--ink)}
.head{max-width:1100px;width:100%;margin:0 auto;padding:8px 24px 0}
.eyebrow{letter-spacing:.14em;text-transform:uppercase;font-size:12px;color:var(--muted);margin:0 0 6px}
h1{margin:0;font-size:42px;letter-spacing:-.02em;line-height:1}
.lede{color:var(--muted);max-width:64ch;line-height:1.5;margin:10px 0 0}
.lede strong{color:var(--ink)}
.layout{max-width:1100px;width:100%;margin:0 auto;display:grid;grid-template-columns:1.25fr .75fr;gap:20px;padding:20px 24px 28px;flex:1}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:16px;box-shadow:0 10px 30px rgba(0,0,0,.3)}
#ruin{width:100%;height:auto;display:block;border-radius:12px;border:1px solid var(--line);cursor:crosshair}
#ruin:focus-visible{outline:2px solid var(--lit);outline-offset:2px}
.meter{margin-top:12px}
.meter-head{display:flex;justify-content:space-between;align-items:baseline;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.meter-head strong{font-size:22px;color:var(--ink);letter-spacing:0}
.bar{height:10px;background:var(--floor);border-radius:99px;overflow:hidden;border:1px solid var(--line);margin-top:6px}
.bar i{display:block;height:100%;width:0%;background:linear-gradient(90deg,var(--lantern),var(--lit));transition:width .35s ease}
.status{min-height:22px;color:var(--muted);font-size:14px;margin:8px 0 0}
.row{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
button{border:1px solid var(--line);background:var(--paper);color:var(--ink);padding:10px 16px;border-radius:10px;font:600 14px/1 system-ui;cursor:pointer}
button:hover{border-color:var(--lit)}
button:focus-visible{outline:2px solid var(--lit);outline-offset:2px}
button.primary{background:var(--lit);color:#241b05;border-color:transparent}
button.ghost{background:transparent}
button kbd{border:1px solid var(--line);border-bottom-width:2px;padding:0 5px;border-radius:5px;font-size:11px}
.side h2{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 8px}
.side h2 span{color:var(--ink)}
.dots{display:flex;gap:6px;margin-bottom:14px}
.dots button{width:22px;height:22px;border-radius:50%;background:var(--line);display:block;border:1px solid transparent;cursor:pointer;padding:0}
.dots button.done{background:var(--lit)}
.dots button.active{box-shadow:0 0 0 3px rgba(255,217,122,.25);background:var(--lantern)}
.dots button:hover{border-color:var(--lit)}
.dots button:focus-visible{outline:2px solid var(--lit);outline-offset:2px}
.side ol{margin:0;padding-left:20px;line-height:1.7;font-size:14px}
.side ol strong{color:var(--lit)}
.hint{font-size:12px;color:var(--muted);line-height:1.8;margin:12px 0 0}
.hint kbd{border:1px solid var(--line);border-bottom-width:2px;background:var(--paper);padding:1px 6px;border-radius:6px;font-size:11px;color:var(--ink)}
.foot{display:flex;justify-content:space-between;gap:12px;padding:14px 24px 20px;color:var(--muted);font-size:13px;border-top:1px solid var(--line);max-width:1100px;width:100%;margin:0 auto;flex-wrap:wrap}
.foot a{color:var(--muted);text-decoration:none}
.foot a:hover{color:var(--ink)}
@media(max-width:900px){.layout{grid-template-columns:1fr}h1{font-size:34px}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}