:root{color-scheme:dark;--bg:#0d1320;--panel:#171f31;--line:#34415c;--text:#f3f5fb;--muted:#bec7d9;--accent:#d7b466;--focus:#8bc7ff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:1rem/1.6 system-ui,-apple-system,Segoe UI,sans-serif}.endgame-practice-page .caissa-standalone-content{min-width:0;background:var(--bg)}
a{color:inherit}.skip-link{position:fixed;left:.75rem;top:-5rem;background:#fff;color:#111;padding:.65rem;z-index:10}.skip-link:focus{top:.75rem}
.practice-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem max(1rem,env(safe-area-inset-left));border-bottom:1px solid var(--line);background:#111827}
.brand{font-weight:800;text-decoration:none}.practice-header nav{display:flex;flex-wrap:wrap;gap:.35rem 1rem}.practice-header nav a{text-underline-offset:.25rem}
main{width:min(70rem,calc(100% - 2rem));margin:auto;padding:clamp(2rem,5vw,4.5rem) 0}.hero{max-width:54rem}.eyebrow{color:var(--accent);font-size:.82rem;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
h1{font-size:clamp(2.1rem,6vw,4.4rem);line-height:1.05;margin:.25rem 0 1rem}h2{font-size:clamp(1.5rem,3vw,2rem);margin:0 0 .75rem}h3{margin:0 0 .35rem}.intro{font-size:clamp(1.05rem,2.3vw,1.35rem);color:var(--muted)}
.facts{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:.75rem;padding:0;margin:2rem 0 0;list-style:none}.facts li,.exercise-grid article,.status-card{border:1px solid var(--line);background:var(--panel);border-radius:.75rem;padding:1rem}
main>section{margin-bottom:clamp(2.5rem,6vw,5rem);scroll-margin-top:1rem}.exercise-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem}.exercise-grid article:last-child{grid-column:1/-1}.exercise-grid p{color:var(--muted);margin:0}
#privacy{max-width:50rem}#privacy p{color:var(--muted)}.status-card{border-left:.35rem solid var(--accent);max-width:50rem}.status-card p{margin:.35rem 0 1rem}.primary,button,.return-links a{display:inline-block;border-radius:.45rem;padding:.7rem 1rem;font:inherit;font-weight:750}.primary{background:var(--accent);color:#15100a;text-decoration:none}button{border:1px solid var(--line);background:#202b43;color:var(--text)}
.return-links{display:flex;flex-wrap:wrap;gap:.75rem}.return-links a{border:1px solid var(--line)}.feedback-note{color:var(--muted);margin:.8rem 0 0}footer{min-height:8rem;display:grid;place-items:center;border-top:1px solid var(--line);color:var(--muted)}
:focus-visible{outline:3px solid var(--focus);outline-offset:3px}[hidden]{display:none!important}
@media(max-width:640px){.practice-header{align-items:flex-start;flex-direction:column}.facts,.exercise-grid{grid-template-columns:1fr}.exercise-grid article:last-child{grid-column:auto}main{width:min(100% - 1.5rem,70rem)}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}