:root{--bg:#07111f;--deep:#040a13;--panel:#101d30;--text:#edf6ff;--muted:#9cb0c7;--line:rgba(148,184,219,.16);--cyan:#45c8ff;--green:#5de2a6;--amber:#ffc65c;--radius:22px;--shadow:0 30px 90px rgba(0,0,0,.32)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;color:var(--text);background:radial-gradient(circle at 20% 0%,rgba(44,116,255,.16),transparent 34%),radial-gradient(circle at 90% 18%,rgba(49,221,169,.1),transparent 29%),linear-gradient(180deg,var(--bg),var(--deep));font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}button{font:inherit}.section-shell{width:min(1180px,calc(100% - 40px));margin-inline:auto}.site-header{position:sticky;top:0;z-index:50;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:16px max(20px,calc((100vw - 1180px)/2));border-bottom:1px solid 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0;color:var(--muted);font-size:1.1rem}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 19px;border:1px solid transparent;border-radius:13px;font-weight:750;transition:.22s ease}.button.primary{color:#04111b;background:linear-gradient(135deg,var(--cyan),var(--green));box-shadow:0 16px 45px rgba(69,200,255,.18)}.button.primary:hover{transform:translateY(-2px)}.button.secondary{border-color:var(--line);background:rgba(255,255,255,.035)}.button.secondary:hover{border-color:rgba(69,200,255,.4);background:rgba(69,200,255,.07)}.button.disabled{opacity:.55;cursor:not-allowed}.microcopy{margin-top:15px;color:#6f87a0;font-size:.82rem}.hero-visual{position:relative;min-height:540px;display:grid;place-items:center;isolation:isolate}.hero-visual:before{content:"";position:absolute;inset:12%;border-radius:50%;background:radial-gradient(circle,rgba(66,159,255,.16),transparent 67%);filter:blur(8px);z-index:-3}.orbit{position:absolute;border:1px solid rgba(106,173,230,.16);border-radius:50%;animation:spin 28s linear infinite}.orbit:after{content:"";position:absolute;width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 22px var(--cyan)}.orbit-one{width:390px;height:390px}.orbit-one:after{top:38px;right:60px}.orbit-two{width:510px;height:510px;animation-direction:reverse;animation-duration:40s}.orbit-two:after{bottom:55px;left:78px;background:var(--green);box-shadow:0 0 22px var(--green)}@keyframes spin{to{transform:rotate(360deg)}}.device-card{border:1px solid rgba(126,181,225,.18);background:linear-gradient(145deg,rgba(21,40,65,.93),rgba(8,18,32,.88));box-shadow:var(--shadow);backdrop-filter:blur(15px)}.core-card{position:relative;z-index:3;width:245px;min-height:245px;display:grid;place-items:center;align-content:center;border-radius:30px;text-align:center}.core-card strong{margin-top:14px;font-size:1.45rem}.core-card 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article>span{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);color:var(--muted)}.roadmap .done>span{color:#06151d;background:var(--green);border-color:transparent}.roadmap small{display:block;margin-top:22px;color:var(--green);font-weight:800;text-transform:uppercase;letter-spacing:.11em}.roadmap h3{margin:8px 0}.roadmap p{margin:0;color:var(--muted);font-size:.9rem}.download-panel{display:grid;grid-template-columns:1fr auto;gap:50px;align-items:center;padding:42px;border:1px solid rgba(69,200,255,.22);border-radius:28px;background:radial-gradient(circle at 100% 0%,rgba(69,200,255,.12),transparent 42%),linear-gradient(145deg,rgba(18,34,56,.88),rgba(8,17,29,.9));box-shadow:var(--shadow)}.download-panel h2{font-size:clamp(2rem,4vw,3.25rem)}.download-actions{display:grid;gap:11px;min-width:235px}.responsible{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:end;margin-block:40px 100px;padding:38px;border-top:1px solid 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/* v0.2 — official OpenRF Platform logo supplied by the project owner */
.brand > img { width: 42px; height: 42px; object-fit: cover; object-position: center; border-radius: 10px; }
.hero-visual { min-height: 590px; }
.official-logo-wrap { position: relative; z-index: 3; width: min(100%, 570px); display: grid; place-items: center; }
.official-logo { display: block; width: 100%; height: auto; border-radius: 30px; filter: drop-shadow(0 28px 70px rgba(0,157,255,.22)); }
.official-logo-wrap::after { content: ""; position: absolute; inset: 18% 12%; z-index: -1; border-radius: 50%; background: radial-gradient(circle at 32% 35%, rgba(73,240,105,.18), transparent 42%), radial-gradient(circle at 70% 42%, rgba(0,130,255,.25), transparent 48%); filter: blur(40px); }
@media (max-width: 680px) { .official-logo-wrap { width: min(100%, 500px); } }

.download-meta {
  margin-top: 1rem;
  line-height: 1.7;
}
.download-meta code {
  font-size: 0.72rem;
  overflow-wrap: anywhere;
  opacity: 0.8;
}