:root {
  color-scheme: dark;
  --ink: #f5f2e9;
  --muted: #a8aaa0;
  --line: rgba(245, 242, 233, 0.16);
  --accent: #d9ff67;
  --bg: #101313;
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body::before {
  background: radial-gradient(circle at 78% 22%, rgba(217, 255, 103, 0.13), transparent 28rem);
  content: "";
  inset: 0;
  pointer-events: none;
  position: fixed;
}

.shell {
  display: flex;
  flex-direction: column;
  min-height: 100svh;
  margin: 0 auto;
  max-width: 1180px;
  padding: 28px clamp(22px, 5vw, 72px) 30px;
  position: relative;
}

.topline, footer {
  align-items: center;
  color: var(--muted);
  display: flex;
  font-size: 0.72rem;
  font-weight: 700;
  justify-content: space-between;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.dot {
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 18px rgba(217, 255, 103, 0.65);
  display: inline-block;
  height: 8px;
  margin-right: auto;
  width: 8px;
}

.hero {
  margin: auto 0;
  max-width: 760px;
  padding: 11vh 0 13vh;
}

.eyebrow {
  color: var(--accent);
  font-size: clamp(0.8rem, 1.5vw, 1rem);
  font-weight: 700;
  letter-spacing: 0.11em;
  margin: 0 0 24px;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(4rem, 12vw, 9.5rem);
  letter-spacing: -0.085em;
  line-height: 0.87;
  margin: 0;
  max-width: 900px;
}

h1 span { color: var(--accent); }

.intro {
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.55;
  margin: 36px 0 30px;
  max-width: 420px;
}

.button {
  align-items: center;
  background: var(--accent);
  border-radius: 999px;
  color: #101313;
  display: inline-flex;
  font-size: 0.9rem;
  font-weight: 800;
  gap: 18px;
  padding: 15px 20px 15px 23px;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.button:hover, .button:focus-visible {
  box-shadow: 0 0 0 5px rgba(217, 255, 103, 0.15);
  transform: translateY(-2px);
}

.button span { font-size: 1.15rem; }

footer {
  border-top: 1px solid var(--line);
  letter-spacing: 0.08em;
  padding-top: 18px;
}

.lock { color: var(--accent); font-size: 1rem; margin-left: auto; margin-right: 10px; }

@media (max-width: 540px) {
  .shell { padding-top: 22px; }
  .topline { font-size: 0.62rem; }
  .hero { padding: 8vh 0 12vh; }
  footer { font-size: 0.59rem; }
}