:root {
  color-scheme: dark;
  --bg: #050a12;
  --panel: #0a1422;
  --panel-2: #0d1b2c;
  --line: rgba(121, 176, 255, .16);
  --text: #f5f9ff;
  --muted: #90a2b8;
  --blue: #2d8cff;
  --blue-2: #6eb5ff;
  --cyan: #62e6ff;
  --green: #48d597;
  --shadow: 0 26px 80px rgba(0,0,0,.36);
  --radius: 22px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(circle at 80% 10%, rgba(24,96,184,.18), transparent 32rem), var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  min-height: 100vh;
}
button, a { font: inherit; }
a { color: inherit; text-decoration: none; }
.bg-grid {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .25;
  background-image: linear-gradient(rgba(100,160,220,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(100,160,220,.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
}
.shell { width: min(1160px, calc(100% - 40px)); margin-inline: auto; }
.topbar {
  width: min(1160px, calc(100% - 40px)); margin: 0 auto; height: 78px;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 800; letter-spacing: -.02em; }
.brand-mark {
  display: inline-grid; place-items: center; width: 35px; height: 35px; border: 1px solid rgba(110,181,255,.45);
  background: linear-gradient(145deg, rgba(45,140,255,.25), rgba(45,140,255,.06)); border-radius: 10px;
  color: #a9d4ff; font-size: 12px; letter-spacing: .08em; box-shadow: inset 0 0 24px rgba(45,140,255,.09);
}
nav { display: flex; gap: 28px; align-items: center; font-size: 14px; color: #b9c8d8; }
nav a:hover { color: white; }
.nav-cta { padding: 9px 14px; border: 1px solid rgba(45,140,255,.38); border-radius: 10px; color: #d9ecff; background: rgba(45,140,255,.08); }
.hero { min-height: 670px; padding: 90px 0 70px; display: grid; grid-template-columns: 1.1fr .9fr; gap: 68px; align-items: center; }
.eyebrow, .kicker, .mini-label { font-size: 11px; letter-spacing: .18em; font-weight: 800; color: var(--blue-2); }
.eyebrow { display: flex; align-items: center; gap: 9px; }
.pulse { width: 7px; height: 7px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 14px var(--cyan); }
h1 { margin: 20px 0; font-size: clamp(56px, 7vw, 92px); line-height: .96; letter-spacing: -.065em; max-width: 760px; }
h1 span { color: #83bdff; }
.hero-text { color: #aab9ca; font-size: 18px; max-width: 650px; }
.hero-actions { display: flex; gap: 13px; margin: 32px 0 30px; flex-wrap: wrap; }
.button { display: inline-flex; min-height: 50px; align-items: center; justify-content: center; gap: 10px; padding: 0 21px; border-radius: 12px; border: 1px solid transparent; font-weight: 800; cursor: pointer; transition: transform .15s ease, border-color .15s ease, background .15s ease; }
.button:hover:not(:disabled) { transform: translateY(-1px); }
.primary { background: linear-gradient(135deg, #1979ea, #389dff); color: white; box-shadow: 0 10px 30px rgba(30,132,244,.22); }
.secondary { border-color: rgba(130,174,220,.2); background: rgba(255,255,255,.025); color: #d6e4f2; }
.trust-row { display: flex; gap: 12px; flex-wrap: wrap; }
.trust-row span { font-size: 12px; color: #8fa4b9; border: 1px solid rgba(137,181,229,.12); border-radius: 999px; padding: 7px 10px; background: rgba(255,255,255,.018); }
.signal-card { position: relative; padding: 24px; border: 1px solid rgba(95,163,236,.2); background: linear-gradient(145deg, rgba(13,29,49,.93), rgba(6,14,24,.94)); border-radius: 24px; box-shadow: var(--shadow); overflow: hidden; }
.signal-card:before { content:""; position:absolute; width:250px; height:250px; right:-100px; top:-120px; border-radius:50%; background:rgba(45,140,255,.16); filter: blur(12px); }
.signal-card-top { position: relative; display:flex; justify-content:space-between; align-items:flex-start; }
.signal-card-top strong { display:block; margin-top: 4px; font-size:22px; }
.status-dot { font-size: 10px; letter-spacing:.12em; color: #7df0b7; border: 1px solid rgba(72,213,151,.28); background: rgba(72,213,151,.08); padding:6px 8px; border-radius:999px; }
.wave { height: 142px; display:flex; align-items:center; gap:5px; margin:26px 0 18px; padding: 0 4px; border-top: 1px solid rgba(100,170,240,.08); border-bottom: 1px solid rgba(100,170,240,.08); }
.wave i { display:block; flex:1; min-width:2px; height:var(--h); border-radius:3px; background:linear-gradient(to top, rgba(45,140,255,.18), rgba(98,230,255,.9)); box-shadow: 0 0 8px rgba(61,164,255,.15); }
.meters > div:nth-child(odd) { display:flex; justify-content:space-between; font-size:12px; color:#9eb0c3; margin-top:12px; }
.meters b { color:#dbeeff; }
.meter { height:5px; border-radius:99px; overflow:hidden; background:#101b28; margin-top:6px; }
.meter i { display:block; height:100%; border-radius:inherit; background:linear-gradient(90deg, #2786f2, #69d6ff); }
.signal-note { font-size:12px; color:#758ba0; border-top:1px solid var(--line); padding-top:16px; margin:20px 0 0; }
.section { padding: 82px 0; }
.section-heading { max-width: 720px; margin-bottom: 30px; }
h2 { font-size: clamp(36px, 5vw, 54px); line-height:1.05; letter-spacing:-.045em; margin: 10px 0 16px; }
.section-copy { color: var(--muted); max-width:620px; }
.feature-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:16px; }
.feature-card { min-height:220px; padding:24px; border:1px solid var(--line); border-radius:18px; background:linear-gradient(145deg, rgba(12,27,46,.72), rgba(7,16,27,.72)); }
.feature-number { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; color:#5f9ee5; font-size:11px; letter-spacing:.12em; }
.feature-card h3 { font-size:20px; margin:36px 0 8px; }
.feature-card p { color:#8fa3b8; font-size:14px; margin:0; }
.community-card { display:grid; grid-template-columns:1fr auto; gap:38px; align-items:center; padding:34px 38px; border:1px solid rgba(88,101,242,.36); border-radius:var(--radius); background:linear-gradient(145deg, rgba(88,101,242,.13), rgba(7,16,27,.84)); box-shadow:var(--shadow); }
.community-card h2 { margin-bottom:10px; }
.community-card p { color:#98aabe; max-width:720px; margin:0 0 14px; }
.community-url { display:inline-block; color:#9fafff; font-family:ui-monospace, SFMono-Regular, Menlo, monospace; font-size:12px; border:1px solid rgba(88,101,242,.28); background:rgba(88,101,242,.08); padding:7px 10px; border-radius:9px; }
.community-button { min-width:230px; white-space:nowrap; }
.split-section { display:grid; grid-template-columns:.85fr 1.15fr; gap:80px; align-items:start; }
.steps { list-style:none; padding:0; margin:0; display:grid; gap:12px; }
.steps li { display:grid; grid-template-columns:42px 1fr; gap:14px; align-items:center; padding:16px; border:1px solid var(--line); border-radius:15px; background:rgba(255,255,255,.018); }
.steps li > span { width:38px; height:38px; display:grid; place-items:center; border-radius:11px; background:rgba(45,140,255,.1); color:#8dc5ff; font-weight:800; }
.steps b, .steps small { display:block; }
.steps small { color:#8297ab; margin-top:2px; }
.download-card { display:grid; grid-template-columns:1.2fr .8fr; gap:38px; padding:38px; border:1px solid rgba(76,160,255,.28); border-radius:var(--radius); background:linear-gradient(145deg, #0d1d31, #07101b); box-shadow:var(--shadow); }
.download-card h2 { margin-bottom:12px; }
.download-card h2 span { color:#6fb5ff; }
.download-copy > p { color:#98aabe; max-width:680px; }
.download-meta { display:flex; gap:26px; flex-wrap:wrap; margin-top:25px; }
.download-meta span { display:grid; gap:3px; }
.download-meta small, .requirements span { font-size:9px; color:#607a95; font-weight:800; letter-spacing:.16em; }
.download-meta b { font-size:13px; color:#d7e8f7; }
.download-action { display:flex; flex-direction:column; justify-content:center; }
.download-button { width:100%; border:0; font-size:16px; }
.download-button:disabled { cursor:not-allowed; opacity:.55; }
.download-icon { font-size:20px; }
.progress-wrap { display:grid; grid-template-columns:1fr auto; gap:10px; align-items:center; margin-top:14px; font-size:11px; color:#a9bfd5; }
.progress-track { height:6px; overflow:hidden; border-radius:99px; background:#0d1722; }
.progress-bar { height:100%; width:0; background:linear-gradient(90deg,#2786f2,#62e6ff); transition:width .15s ease; }
.download-status { margin:10px 0 0; min-height:22px; font-size:12px; color:#8196aa; text-align:center; }
.checksum { grid-column:1/-1; display:grid; grid-template-columns:auto 1fr auto; gap:12px; align-items:center; padding-top:20px; border-top:1px solid var(--line); }
.checksum span { font-size:10px; letter-spacing:.14em; color:#6d869d; font-weight:800; }
.checksum code { overflow:hidden; text-overflow:ellipsis; white-space:nowrap; color:#a8bbcd; font-size:11px; }
.checksum button { border:1px solid var(--line); background:rgba(255,255,255,.025); color:#bcd0e3; border-radius:8px; padding:7px 10px; cursor:pointer; }
.requirements { margin-top:2px; margin-bottom:76px; padding:23px 0; display:grid; grid-template-columns:repeat(4,1fr); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.requirements div { display:grid; gap:5px; padding:0 20px; border-right:1px solid var(--line); }
.requirements div:last-child { border-right:0; }
.requirements b { font-size:12px; color:#b6c9da; }
.footer { display:grid; grid-template-columns:auto 1fr auto; gap:30px; align-items:center; padding:30px 0 42px; color:#667d92; font-size:11px; border-top:1px solid var(--line); }
.footer p { margin:0; text-align:center; }
.footer-brand { color:#9ab0c4; }
@media (max-width: 900px) {
  .hero, .split-section, .download-card, .community-card { grid-template-columns:1fr; }
  .hero { padding-top:64px; gap:45px; }
  .feature-grid { grid-template-columns:1fr; }
  .requirements { grid-template-columns:1fr 1fr; gap:20px 0; }
  .requirements div:nth-child(2) { border-right:0; }
  .download-card { padding:26px; }
}
@media (max-width: 650px) {
  .shell, .topbar { width:min(100% - 26px, 1160px); }
  .topbar { height:68px; }
  nav a:not(.nav-cta) { display:none; }
  h1 { font-size:53px; }
  .hero { min-height:0; padding:62px 0 45px; }
  .section { padding:58px 0; }
  .requirements { grid-template-columns:1fr; }
  .requirements div { border-right:0; padding:0; }
  .checksum { grid-template-columns:1fr auto; }
  .checksum span { grid-column:1/-1; }
  .footer { grid-template-columns:1fr; text-align:center; }
  .footer p { text-align:center; }
  .footer-brand { justify-content:center; }
}