:root{
  --ink:#242a20; --muted:#656f58; --line:#dde2d2; --bg:#fbfaf5; --soft:#f1efe3;
  --brand:#2f5233; --brand-d:#20381f; --gold:#b9872e; --warn:#a6402f;
  --radius:10px; --wrap:1100px;
  --serif:Georgia,Cambria,"Times New Roman",Times,serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg)}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
h1,h2,h3{font-family:var(--serif);line-height:1.22;color:var(--ink);font-weight:700}
h1{font-size:38px;margin-bottom:14px}
h2{font-size:26px;margin:0 0 14px}
h3{font-size:19px;margin:0 0 8px}
p{margin:0 0 14px}
ul,ol{margin:0 0 16px 20px}
li{margin:6px 0}

/* utility bar */
.utilbar{background:var(--brand-d);color:#cfe0c9;font-size:13px}
.utilbar .wrap{display:flex;justify-content:space-between;gap:14px;padding:7px 24px;flex-wrap:wrap}
.utilbar b{color:#fff}

/* header */
header.site{background:var(--brand);color:#fff}
.nav{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:700;font-size:20px;color:#fff}
.logo:hover{text-decoration:none}
.logo .mark{width:34px;height:34px;border-radius:8px;background:var(--gold);color:var(--brand-d);
  display:grid;place-items:center;font-weight:800;font-size:17px;font-family:var(--serif)}
.logo .sub{font-family:-apple-system,sans-serif;font-weight:500;font-size:14px;color:#cfe0c9}
.nav .links{display:flex;gap:22px;margin-left:auto;align-items:center}
.nav .links a{color:#dfe9db;font-weight:500;font-size:15px}
.nav .links a:hover,.nav .links a.on{color:#fff;text-decoration:none}
.nav .links a.btn{background:var(--gold);color:var(--brand-d);padding:9px 16px;border-radius:8px;font-weight:700}
.nav .links a.btn:hover{background:#cf9a3d;color:var(--brand-d)}

.btn{display:inline-block;background:var(--brand);color:#fff;padding:11px 20px;border-radius:8px;
  font-weight:600;font-size:15px;border:0;cursor:pointer}
.btn:hover{background:var(--brand-d);text-decoration:none;color:#fff}
.btn.ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55)}
.btn.ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn.gold{background:var(--gold);color:var(--brand-d)}
.btn.gold:hover{background:#cf9a3d}

/* hero */
.hero{padding:58px 0 50px;background:
  linear-gradient(135deg,var(--brand) 0%,var(--brand) 46%,var(--brand-d) 100%);color:#fff}
.hero .eyebrow{color:var(--gold);font-weight:700;font-size:13px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
.hero h1{color:#fff;max-width:18ch}
.hero p.lead{font-size:18px;color:#e2ead9;max-width:58ch;margin:16px 0 26px}
.hero .cta{display:flex;gap:12px;flex-wrap:wrap}

section{padding:52px 0}
.section-h{max-width:66ch;margin:0 0 32px}
.section-h p{color:var(--muted)}
.soft{background:var(--soft)}

.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g5{grid-template-columns:repeat(5,1fr)}

.card{border:1px solid var(--line);border-radius:var(--radius);padding:22px;background:#fff}
a.card{display:block;color:inherit}
a.card:hover{border-color:var(--brand);text-decoration:none;box-shadow:0 2px 14px rgba(47,82,51,.08)}
.card .fam{color:var(--gold);font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em}
.card h3{margin:8px 0 6px}
.card p{color:var(--muted);font-size:15px;margin:0 0 10px}
.card .ic{width:40px;height:40px;border-radius:9px;background:var(--soft);display:grid;place-items:center;margin-bottom:12px}

.stats{display:flex;gap:40px;flex-wrap:wrap}
.stat b{display:block;font-family:var(--serif);font-size:32px;color:var(--brand)}
.stat span{color:var(--muted);font-size:14px}

.crumbs{color:var(--muted);font-size:14px;margin-bottom:10px}
.meta{color:var(--muted);font-size:15px;margin-bottom:20px}
.badge{display:inline-block;border-radius:999px;padding:3px 11px;font-size:12.5px;font-weight:700}
.badge-current{background:#e6f0e3;color:var(--brand-d)}
.badge-eol{background:var(--soft);color:var(--muted)}
.badge-beta{background:#f7ecd6;color:#8a5d17}

.note{background:var(--soft);border-left:3px solid var(--gold);padding:14px 18px;border-radius:7px;margin:18px 0;color:#3a4432}
.note.warn{border-left-color:var(--warn);background:#f8e9e5}

/* firmware / driver tables */
.tablewrap{overflow-x:auto;margin:16px 0 26px}
table.files{border-collapse:collapse;width:100%;font-size:14.5px;background:#fff}
table.files th,table.files td{border:1px solid var(--line);padding:10px 12px;text-align:left;vertical-align:top}
table.files thead th{background:var(--soft);font-size:12.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
table.files tbody tr:hover{background:#fbfbf6}
td.ver{font-weight:700;color:var(--brand-d)}
td.hash,.hash{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;color:var(--muted)}
td.dl a{font-weight:700}

.model-head{display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;margin:40px 0 6px}
.model-head:first-of-type{margin-top:0}
.model-head h2{margin:0}

/* changelog timeline */
.timeline{border-left:2px solid var(--line);margin:0 0 0 8px;padding:0}
.tl-item{position:relative;padding:4px 0 28px 26px}
.tl-item::before{content:"";position:absolute;left:-7px;top:6px;width:12px;height:12px;border-radius:50%;
  background:var(--gold);border:2px solid #fff;box-shadow:0 0 0 2px var(--line)}
.tl-item .tl-ver{font-family:var(--serif);font-weight:700;font-size:18px;color:var(--brand-d)}
.tl-item .tl-date{color:var(--muted);font-size:13.5px;margin-left:10px}
.tl-item ul{margin-top:8px}

/* FAQ accordion (native, no JS) */
details.faq{border:1px solid var(--line);border-radius:var(--radius);background:#fff;margin:0 0 10px;padding:0}
details.faq summary{cursor:pointer;list-style:none;padding:15px 20px;font-weight:700;font-size:15.5px;
  display:flex;justify-content:space-between;align-items:center;color:var(--ink)}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";font-size:20px;color:var(--gold);font-weight:700}
details.faq[open] summary::after{content:"\2212"}
details.faq .body{padding:0 20px 18px;color:var(--muted)}

ol.steps li{margin:10px 0}
ul.quirks li{margin:10px 0}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;font-size:14px;margin-bottom:6px}
.field input,.field textarea,.field select{width:100%;padding:11px 13px;border:1px solid var(--line);
  border-radius:8px;font:inherit;background:#fff}

footer.site{background:var(--brand-d);color:#cfe0c9;padding:44px 0 26px;margin-top:10px}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:28px}
footer.site h4{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:#9fb699;margin-bottom:12px}
footer.site a{display:block;color:#dfe9db;font-size:14.5px;margin:6px 0}
footer.site a:hover{color:#fff}
.foot .fin{color:#aec5a7;font-size:14px;max-width:34ch}
.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:26px;padding-top:16px;color:#9fb699;font-size:13px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

@media(max-width:860px){
  .g2,.g3,.g5,.foot,.contact-grid{grid-template-columns:1fr}
  .nav .links{display:none}
  .hero h1{font-size:30px}
  .utilbar .wrap{flex-direction:column;gap:2px}
}