/* Ironstrike brand tokens (copied from ironstrike-ai/index.html). Zero dependencies. */
:root{--bg:#0a0a0b;--panel:#141416;--steel-line:#38393e;--text:#eae8e4;--dim:#9a9a9f;--ember:#f5821f;--ember-bright:#ff9e42;--bad:#ff8a7a}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;min-height:100vh;display:flex;flex-direction:column}
.wrap{width:100%;max-width:760px;margin:0 auto;padding:24px 16px}
main.wrap{flex:1}
h1{font-size:2rem;line-height:1.15;margin:0 0 8px}
h2{font-size:1.15rem;margin:16px 0 8px}
h3{font-size:1rem;margin:20px 0 4px}
p{margin:0 0 12px}
a{color:var(--ember-bright)}
.lede{color:var(--dim)}
button,.btn{min-height:44px;min-width:44px;padding:10px 20px;font:inherit;font-weight:600;color:#0a0a0b;background:var(--ember);border:0;border-radius:8px;cursor:pointer;touch-action:manipulation}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid var(--ember-bright);outline-offset:2px}
.is-footer{border-top:1px solid var(--steel-line);color:var(--dim);font-size:.875rem;padding:16px;max-width:760px;margin:0 auto;width:100%}
.is-footer p{margin:0 0 8px}
.is-footer a{padding:14px 6px;margin:-14px -6px}

/* finalgrade */
.card{background:var(--panel);border:1px solid var(--steel-line);border-radius:10px;padding:14px}
label{display:block;color:var(--dim);font-size:.875rem;margin:0 0 10px}
input{display:block;width:100%;min-height:44px;margin-top:4px;padding:8px 10px;font:inherit;font-size:16px;color:var(--text);background:var(--bg);border:1px solid var(--steel-line);border-radius:8px}
input[aria-invalid=true]{border-color:var(--bad)}
.msg{color:var(--bad);font-size:.875rem;margin:-6px 0 10px}
.msg:empty{display:none}
.links{margin:8px 0}
a.tab{display:inline-flex;align-items:center;min-height:44px;padding:0 12px 0 0;color:var(--ember-bright);font-weight:600;text-decoration:underline}
.right{margin-top:8px}
.ans{border-color:var(--ember)}
.ans[hidden],#detail[hidden]{display:none}
.ans.safe,.ans.over{border-color:var(--steel-line)}
.k{color:var(--dim);font-size:.875rem;margin:0 0 4px}
.big{font-size:2.4rem;line-height:1.1;font-weight:700;color:var(--ember-bright);margin:0 0 6px;overflow-wrap:anywhere}
.note2{margin:0;color:var(--text)}
.note2:empty{display:none}
.hint{color:var(--dim);margin:0}
.hint.bad{color:var(--bad);font-weight:600}
.hint:empty{display:none}
.work{padding-left:22px;margin:0 0 12px;color:var(--dim);font-size:.9rem;overflow-wrap:anywhere}
.work li{margin:0 0 8px}
.table{list-style:none;margin:0 0 12px;padding:0;display:grid;gap:6px}
.table li{background:var(--panel);border:1px solid var(--steel-line);border-radius:8px;padding:8px 12px}
.note{color:var(--dim);font-size:.875rem}
#howview p,#howview li{max-width:70ch}
@media (min-width:820px){
  .wrap{padding:40px 24px;max-width:720px}h1{font-size:2.6rem}
}
@media (min-width:1440px){
  .wrap{max-width:1280px}
  .layout{display:grid;grid-template-columns:minmax(0,520px) minmax(0,1fr);gap:40px;align-items:start}
  .right{position:sticky;top:24px;margin-top:0}
  .big{font-size:3.2rem}
  #howview{max-width:760px}
}