/* 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}
*{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:16px}
main.wrap{flex:1}
h1{font-size:1.6rem;line-height:1.15;margin:0 0 4px}
h2{font-size:1.05rem;margin:0 0 6px}
p{margin:0 0 12px}
a{color:var(--ember-bright)}
.lede{color:var(--dim);margin-bottom:12px}
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}
button:focus-visible,a:focus-visible{outline:3px solid var(--ember-bright);outline-offset:2px}
.pad{display:block;width:100%;min-height:220px;font-size:2.2rem;letter-spacing:.12em;touch-action:manipulation;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none;border-radius:14px}
.pad:active{background:var(--ember-bright)}
.hint{display:none;color:var(--dim);text-align:center;margin:8px 0 0}
.readrow{margin:10px 0 4px}
.bpm{font-size:4rem;line-height:1.1;font-weight:700;margin:0;font-variant-numeric:tabular-nums}
.meta{display:flex;align-items:center;gap:12px;color:var(--dim);margin:0 0 8px}
button.link{background:none;color:var(--ember-bright);text-decoration:underline;padding:10px 8px;font-weight:500}
.tabs{display:flex;gap:8px;border-bottom:1px solid var(--steel-line);margin-bottom:12px}
button.tab{background:none;color:var(--dim);text-decoration:underline;padding:10px 8px;font-weight:500}
button.tab[aria-selected="true"]{color:var(--text);text-decoration-color:var(--ember);text-decoration-thickness:3px}
.panel[hidden]{display:none}
.panel{color:var(--text)}
.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}
@media (min-width:820px){
  .wrap{padding:40px 24px;max-width:1000px}h1{font-size:2.4rem}
  .grid{display:grid;grid-template-columns:360px 1fr;gap:32px;align-items:start}
  .pad{min-height:360px}
  .hint{display:block}
}
@media (min-width:1440px){
  .wrap{max-width:1180px}
  .tabs{display:none}
  .panel[hidden]{display:block}
}