:root{color-scheme:dark;--bg:#07172d;--panel:#102946;--text:#e9f4ff;--muted:#bed0e3;--cyan:#59ddff}*{box-sizing:border-box}body{margin:0;font:17px/1.7 system-ui,-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text)}main{max-width:900px;margin:auto;padding:40px 24px 80px}nav{display:flex;gap:24px;flex-wrap:wrap;border-bottom:1px solid #315374;padding-bottom:20px}a{color:var(--cyan);text-underline-offset:4px}h1{font-size:clamp(32px,6vw,48px);line-height:1.15;margin-top:48px}h2{font-size:24px;margin-top:38px}h3{font-size:19px}p,li{color:var(--muted)}.card{background:var(--panel);padding:24px;border:1px solid #315374;border-radius:18px;margin:28px 0}.button{display:inline-block;padding:12px 20px;border:1px solid var(--cyan);border-radius:12px;text-decoration:none}small{color:var(--muted)}section{scroll-margin-top:24px}hr{border:0;border-top:1px solid #315374;margin:52px 0}strong{color:var(--text)}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}

nav .brand{color:#c6ef52;font-weight:800;text-decoration:none;letter-spacing:.07em}a:focus-visible{outline:3px solid #c6ef52;outline-offset:5px}a,code{overflow-wrap:anywhere}nav a{padding:8px 0}main{max-width:940px}h1{letter-spacing:-.025em}body{background:radial-gradient(ellipse at top,#113753 0,#07172d 600px)}
main > #tr { display: none; } main > #tr:target { display: block; } main > #tr:target ~ #en { display: none; }