:root{
  --bg0:#070b14; --bg1:#0a1220; --surface:#101827; --border:#1f2b3e;
  --accent:#44ff96; --text:#e8edf5; --muted:#93a1b8; --soft:#c7d2e2;
  --sans:system-ui,"Segoe UI",Roboto,Arial,sans-serif;
  --serif:Georgia,"Times New Roman",serif;
}
*{box-sizing:border-box;margin:0;padding:0}
img{max-width:100%;height:auto}
@media (prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{background:linear-gradient(180deg,var(--bg0),var(--bg1) 60vh,var(--bg0));
     color:var(--text);font-family:var(--serif);font-size:1.05rem;line-height:1.65;
     -webkit-font-smoothing:antialiased}
.wrap{max-width:1080px;margin:0 auto;padding:0 1.25rem}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:#04180d;
      padding:.5em 1em;z-index:99;font-family:var(--sans)}
.skip:focus{left:0}
h1,h2,h3{font-family:var(--sans);line-height:1.2}
h2{font-size:1.8rem;margin:0 0 1.2rem;letter-spacing:-.01em}
h3{font-size:1.15rem;margin:2rem 0 .8rem;color:var(--soft)}
p{margin:0 0 1em}
.brand,.wordmark{font-family:var(--sans);font-weight:800;letter-spacing:-.03em;color:var(--text)}
.two{color:var(--accent)}
/* top bar */
.top{position:sticky;top:0;z-index:10;background:rgba(7,11,20,.88);
     backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.top nav{display:flex;align-items:center;gap:1.5rem;padding:.7rem 1.25rem;max-width:1080px;margin:0 auto}
.brand{font-size:1.25rem}
.brand:hover{text-decoration:none}
.anchors{display:none;gap:1.15rem;flex:1}
.anchors a{color:var(--soft);font-family:var(--sans);font-size:.92rem}
.anchors a:hover{color:var(--text);text-decoration:none}
@media(min-width:860px){.anchors{display:flex}}
.langs{margin-left:auto;display:flex;gap:.35rem}
.langs a{font-family:var(--sans);font-size:.8rem;font-weight:600;color:var(--muted);
         padding:.25em .6em;border:1px solid var(--border);border-radius:999px}
.langs a:hover{color:var(--text);text-decoration:none}
.langs a.cur{color:#04180d;background:var(--accent);border-color:var(--accent)}
/* hero */
.hero{display:grid;gap:2.5rem;padding-top:3.5rem;padding-bottom:3rem;align-items:center}
@media(min-width:860px){.hero{grid-template-columns:1fr 1fr;padding-top:5rem;padding-bottom:4.5rem}}
.wordmark{font-size:clamp(3rem,7.5vw,4.8rem)}
.sub{font-size:1.3rem;color:var(--soft);font-style:italic;margin:.4em 0 1em;max-width:34ch}
.hero-lead{font-size:1.15rem;color:var(--soft);max-width:46ch}
.btn{display:inline-block;font-family:var(--sans);font-weight:700;color:#04180d;
     background:var(--accent);padding:.75em 1.5em;border-radius:10px;border:0;cursor:pointer}
.btn:hover{filter:brightness(1.1);text-decoration:none}
.btn[aria-disabled="true"]{opacity:.4;pointer-events:none}
.hero-note{font-family:var(--sans);font-size:.85rem;color:var(--muted);margin-top:1rem}
.hero-cover{justify-self:center}
.hero-cover img{width:min(480px,90vw);height:auto;border-radius:14px;
                border:1px solid var(--border);box-shadow:0 24px 70px rgba(0,0,0,.55)}
/* sections */
section{padding:3.2rem 0;border-top:1px solid rgba(31,43,62,.55)}
.lead{font-size:1.12rem;color:var(--soft)}
.stats{display:flex;flex-wrap:wrap;gap:.8rem;margin:1.8rem 0 .5rem}
.stat{background:var(--surface);border:1px solid var(--border);border-radius:12px;
      padding:.85rem 1.3rem;min-width:8.5rem}
.stat .n{display:block;font-family:var(--sans);font-weight:800;font-size:1.7rem;color:var(--accent)}
.stat .l{font-family:var(--sans);font-size:.82rem;color:var(--muted)}
ol.parts{margin:1rem 0 0 1.4rem}
@media(min-width:760px){ol.parts{columns:2;column-gap:3rem}}
ol.parts li{margin:.5em 0;padding-left:.35em;break-inside:avoid}
ol.parts li::marker{font-family:var(--sans);font-weight:700;color:var(--accent)}
/* downloads */
.soon{display:inline-block;font-family:var(--sans);font-weight:700;font-size:.9rem;
      color:var(--accent);background:rgba(60,209,138,.12);border:1px solid rgba(60,209,138,.35);
      border-radius:999px;padding:.35em 1.1em;margin-bottom:1rem}
.cards{display:grid;gap:1.2rem;margin-top:1.4rem}
@media(min-width:700px){.cards{grid-template-columns:1fr 1fr}}
@media(min-width:1000px){.cards.three{grid-template-columns:1fr 1fr 1fr}}
.card{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:1.5rem}
.card h3{margin:0 0 .5rem;font-size:1.3rem;color:var(--text)}
.card .desc{color:var(--muted);font-size:.98rem;min-height:2.6em}
.card .size{font-family:var(--sans);font-size:.85rem;color:var(--muted);margin:.6rem 0 1rem}
.dl-free{font-family:var(--sans);font-size:.88rem;color:var(--muted);margin-top:1.4rem}
.dl-other{margin-top:.4rem}
/* verification */
.cert{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--accent);
      border-radius:12px;padding:1.4rem 1.5rem;margin:1.6rem 0}
.cert .lbl{display:block;font-family:var(--sans);font-weight:700;font-size:.78rem;
           letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:.25rem}
.cert code{display:block;font-family:Consolas,"Courier New",monospace;font-size:.85rem;
           color:#bfe8d4;overflow-wrap:anywhere;line-height:1.5}
.cert .row{margin-bottom:1.1rem}
.cert .foot{display:flex;flex-wrap:wrap;gap:1rem;align-items:center;margin-top:1.3rem}
.cert .date{font-family:var(--sans);color:var(--soft);font-size:.95rem}
.cert .btn{font-size:.9rem;padding:.55em 1.1em}
/* footer */
footer{border-top:1px solid var(--border);background:#05070d;padding:3rem 0 2.5rem;margin-top:3rem}
footer h2{font-size:1.4rem}
.mail{font-size:1.15rem}
.colophon{color:var(--muted);font-size:.9rem;font-family:var(--sans);margin-top:1.6rem}
.fine{color:var(--muted);font-size:.85rem;font-family:var(--sans)}
/* language selector (root) */
.sel{min-height:100svh;display:flex;flex-direction:column;align-items:center;
     justify-content:center;text-align:center;padding:2rem 1rem;gap:.4rem}
.sel .wordmark{font-size:clamp(3rem,9vw,4.5rem)}
.sel .cover-mini{width:min(280px,66vw);height:auto;border-radius:10px;border:1px solid var(--border);
                 box-shadow:0 16px 50px rgba(0,0,0,.5);margin:1.4rem 0 1.8rem}
.sel .choose{color:var(--muted);font-family:var(--sans);font-size:.95rem;margin-bottom:1.2rem}
.langbtn{display:flex;align-items:center;justify-content:space-between;gap:1rem;
         width:min(420px,92vw);background:var(--surface);border:1px solid var(--border);
         border-radius:12px;padding:1rem 1.3rem;margin:.4rem 0;color:var(--text);
         font-family:var(--sans);font-weight:700;font-size:1.1rem;text-align:left}
.langbtn:hover{border-color:var(--accent);text-decoration:none}
.langbtn .langsub{display:block;font-weight:400;font-size:.8rem;color:var(--muted);margin-top:.15rem;text-align:left}
.sel .fine{margin-top:2rem}
/* 404 */
.err{min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:center;
     text-align:center;gap:.6rem;padding:2rem}