:root{box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px);
--bg:#f2f6f3;--card:#fff;--ink:#14302a;--mute:#5b706a;--line:#d5e0da;--acc:#1c7a5a;--accInk:#fff;--coin:#f2b632;--coinInk:#4a3300}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0e1b17;--card:#16261f;--ink:#e8f2ed;--mute:#9bb3aa;--line:#2a3f36;--acc:#3ecb99;--accInk:#062018;--coin:#f2b632;--coinInk:#3b2900}}
:root[data-theme="dark"]{--bg:#0e1b17;--card:#16261f;--ink:#e8f2ed;--mute:#9bb3aa;--line:#2a3f36;--acc:#3ecb99;--accInk:#062018;--coin:#f2b632;--coinInk:#3b2900}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
*,*:before,*:after{box-sizing:inherit}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.55 ui-rounded,"Nunito","Segoe UI",system-ui,sans-serif}
h1,h2,h3{font-family:Georgia,"Times New Roman",serif;line-height:1.15;margin:0 0 .5em}
h1{font-size:clamp(2rem,7vw,3.1rem);letter-spacing:-.02em}
h2{font-size:1.5rem}
main,header,footer{max-width:760px;margin:0 auto;padding:0 18px}
header{padding-top:22px;display:flex;justify-content:space-between;align-items:center}
.brand{font-family:Georgia,serif;font-weight:700;font-size:1.2rem}
nav a{color:var(--mute);text-decoration:none;font-size:.9rem;margin-left:14px}
.hero{padding:26px 0 8px}
.hero p{color:var(--mute);font-size:1.08rem;max-width:34em}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:20px;margin:18px 0}
label{display:block;font-weight:600;font-size:.92rem;margin:14px 0 6px}
input,select{width:100%;font:inherit;padding:12px 14px;border-radius:12px;border:1.5px solid var(--line);background:var(--bg);color:var(--ink)}
input:focus,select:focus,button:focus-visible{outline:3px solid var(--acc);outline-offset:1px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.styles{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.styles button{text-align:left;padding:12px;border-radius:14px;border:1.5px solid var(--line);background:var(--bg);color:var(--ink);font:inherit;cursor:pointer}
.styles button b{display:block}.styles button span{font-size:.82rem;color:var(--mute)}
.styles button[aria-pressed="true"]{border-color:var(--acc);box-shadow:inset 0 0 0 1.5px var(--acc)}
.go{margin-top:20px;width:100%;padding:15px;border:0;border-radius:14px;background:var(--acc);color:var(--accInk);cursor:pointer}
.ghost{padding:10px 14px;border-radius:12px;border:1.5px solid var(--line);background:transparent;color:var(--ink);font:600 .9rem inherit;font-family:inherit;cursor:pointer}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;text-align:center;margin:14px 0}
.stats div{background:var(--bg);border-radius:12px;padding:10px 4px}
.stats b{display:block;font-family:Georgia,serif;font-size:1.3rem}.stats span{font-size:.78rem;color:var(--mute)}
.bar{height:14px;background:var(--bg);border-radius:9px;overflow:hidden;border:1px solid var(--line)}
.bar i{display:block;height:100%;width:0;background:var(--acc);transition:width .3s}
#msg{min-height:1.6em;margin:10px 0 0;font-weight:600;color:var(--acc)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(68px,1fr));gap:8px;margin-top:14px}
.t{aspect-ratio:1;border-radius:50%;border:2px dashed var(--line);background:transparent;color:var(--ink);cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:center;font:inherit;padding:0;line-height:1.1}
.t small{font-size:.66rem;color:var(--mute)}.t b{font-size:.95rem}
.t[aria-pressed="true"]{background:var(--coin);border:2px solid var(--coin);color:var(--coinInk)}
.t[aria-pressed="true"] small{color:var(--coinInk)}
.tools{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
#pin img{width:100%;max-width:340px;border-radius:12px;border:1px solid var(--line);display:block;margin:10px 0}
.hint{color:var(--mute);font-size:.85rem}
.info li{margin:.4em 0}
footer{padding:10px 18px 40px;color:var(--mute);font-size:.82rem}
[hidden]{display:none!important}
@media print{header,#formCard,.tools,.info,footer,#pin,#msg,.hero{display:none!important}body{background:#fff;color:#000}.card{border:0}.t{border-color:#999;color:#000}.t small{color:#333}.t[aria-pressed="true"]{background:#ddd;border-color:#666}}
.go{font-weight:700;font-size:1.05rem}.ghost{font-weight:600;font-size:.9rem}
.bigprint{width:100%;margin-top:18px;padding:17px;border:0;border-radius:14px;background:var(--acc);color:var(--accInk);font-family:inherit;font-weight:800;font-size:1.2rem;cursor:pointer;box-shadow:0 4px 0 rgba(0,0,0,.2)}
.pg h1{font-size:2rem}.pg ol,.pg ul{padding-left:1.25em}.pg li{margin:.4em 0}.pg a,.info a{color:var(--acc);font-weight:600}
footer a{color:var(--mute);margin-right:12px;display:inline-block}
.d3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-top:8px}.d3 input{padding:10px 8px}.d3 label{font-size:.78rem;margin:0 0 4px}
.res{border-top:1px solid var(--line);padding:12px 0}.res h3{margin:0 0 4px}
@media print{.bigprint,#emailCard,#page,#chal{display:none!important}}
@media (max-width:520px){header{flex-direction:column;align-items:flex-start;gap:8px}nav{display:flex;flex-wrap:wrap;gap:4px 18px}nav a{margin:0;padding:6px 0}}

.go,.bigprint,.ghost{display:inline-block;text-align:center;text-decoration:none;box-sizing:border-box}

.pg a.go,.pg a.bigprint,.pg a.ghost{color:var(--accInk);text-decoration:none}
.brand{display:flex;align-items:center;gap:9px;color:var(--ink);text-decoration:none}
.brand-mark{flex:none;display:block}
.brand-word{font-family:Georgia,"Times New Roman",serif;font-weight:700;font-size:1.2rem}