:root {
  --bg: #0a1512;
  --bg-2: #0e1c17;
  --panel: #10241d;
  --ink: #eaf5ef;
  --muted: #9fb7ad;
  --accent: #35e08a;
  --accent-2: #7bf0c2;
  --line: rgba(123, 240, 194, 0.14);
  --radius: 14px;
  --maxw: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 70% -10%, #123027 0%, var(--bg) 55%) fixed;
  color: var(--ink);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* Nav */
.nav {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--maxw); margin: 0 auto; padding: 22px 24px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-mark {
  width: 22px; height: 22px; border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 22px rgba(53, 224, 138, 0.55);
}
.brand-name { font-weight: 700; letter-spacing: -0.02em; font-size: 20px; }
.nav-cta {
  color: var(--bg); background: var(--accent); text-decoration: none;
  padding: 9px 16px; border-radius: 999px; font-weight: 600; font-size: 14px;
  transition: transform .12s ease, background .12s ease;
}
.nav-cta:hover { transform: translateY(-1px); background: var(--accent-2); }

/* Hero */
.hero { position: relative; overflow: hidden; }
.hero-inner { max-width: var(--maxw); margin: 0 auto; padding: 56px 24px 40px; position: relative; z-index: 2; }
.eyebrow {
  text-transform: uppercase; letter-spacing: .18em; font-size: 12px;
  color: var(--accent-2); margin: 0 0 14px;
}
h1 {
  font-size: clamp(34px, 6vw, 60px); line-height: 1.04; letter-spacing: -0.03em;
  margin: 0 0 20px; font-weight: 800;
}
.lede { max-width: 620px; font-size: clamp(16px, 2.1vw, 19px); color: var(--muted); margin: 0 0 28px; }
.lede strong { color: var(--ink); }
.hero-glow {
  position: absolute; inset: -20% 0 auto auto; width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(53,224,138,.22), transparent 62%);
  filter: blur(20px); z-index: 1; pointer-events: none;
}

/* Forms */
.join { display: flex; gap: 10px; flex-wrap: wrap; max-width: 520px; }
.join input {
  flex: 1 1 240px; min-width: 0; padding: 14px 16px; border-radius: 12px;
  border: 1px solid var(--line); background: var(--panel); color: var(--ink);
  font-size: 16px; outline: none; transition: border .15s ease, box-shadow .15s ease;
}
.join input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(53,224,138,.18); }
.join button {
  padding: 14px 22px; border-radius: 12px; border: 0; cursor: pointer;
  background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #052015;
  font-weight: 700; font-size: 16px; transition: transform .12s ease, filter .12s ease;
}
.join button:hover { transform: translateY(-1px); filter: brightness(1.05); }
.join button:disabled { opacity: .6; cursor: default; transform: none; }
.note { color: var(--muted); font-size: 13px; margin: 12px 0 0; }
.note.ok { color: var(--accent-2); }
.note.err { color: #ff9a8a; }

/* How */
.how { max-width: var(--maxw); margin: 0 auto; padding: 40px 24px 20px; }
.how h2, .cta h2 { font-size: clamp(24px, 3.5vw, 34px); letter-spacing: -0.02em; margin: 0 0 26px; }
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); }
.steps li {
  background: linear-gradient(180deg, var(--panel), var(--bg-2));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 22px;
}
.step-n {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 10px; font-weight: 700;
  color: var(--accent); background: rgba(53,224,138,.12); margin-bottom: 12px;
}
.steps h3 { margin: 0 0 6px; font-size: 18px; }
.steps p { margin: 0; color: var(--muted); font-size: 15px; }

/* CTA */
.cta { max-width: var(--maxw); margin: 0 auto; padding: 40px 24px 20px; }
.cta p { color: var(--muted); max-width: 560px; margin: 0 0 22px; }
.join--wide { max-width: 560px; }

/* Footer */
.foot { max-width: var(--maxw); margin: 40px auto 0; padding: 28px 24px 48px; border-top: 1px solid var(--line); }
.foot p { margin: 0 0 8px; color: var(--muted); font-size: 13px; }
.fine { font-size: 12px; color: #7d968c; max-width: 720px; }

@media (max-width: 720px) {
  .steps { grid-template-columns: 1fr; }
  .nav-cta { display: none; }
}