:root {
  --ink: #f8fafc;
  --bg: #0e1520;
  --card: #111c2a;
  --dark: #0e1520;
  --dark2: #334155;
  --muted: #b6c2d2;
  --line: rgba(248,250,252,.14);
  --teal: #14b8a6;
  --cyan: #14b8a6;
  --violet: #6366f1;
  --near-white: #f8fafc;
  --mist: #b6c2d2;
  --max: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--near-white);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 50% -10%, rgba(20,184,166,.13), transparent 32rem),
    linear-gradient(180deg, #0e1520 0%, #0b1018 100%);
}
a { color: inherit; text-decoration: none; }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; }
.skip-link { position: absolute; left: -999px; top: 12px; z-index: 99; padding: 10px 12px; border-radius: 10px; color: var(--dark); background: var(--teal); }
.skip-link:focus { left: 12px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.topbar {
  position: absolute;
  z-index: 3;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(var(--max), calc(100% - 40px));
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--near-white);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-size: 20px; font-weight: 900; letter-spacing: -.05em; }
.brand span span { color: var(--teal); margin-left: -.08em; }
.top-link { padding: 10px 15px; border: 1px solid rgba(255,255,255,.28); border-radius: 999px; background: rgba(255,255,255,.10); backdrop-filter: blur(12px); font-size: 14px; font-weight: 800; }

.hero {
  position: relative;
  min-height: 690px;
  padding: 112px 20px 72px;
  display: grid;
  place-items: center;
  overflow: hidden;
  color: var(--near-white);
  background:
    radial-gradient(circle at 20% 18%, rgba(99,102,241,.28), transparent 22rem),
    radial-gradient(circle at 78% 24%, rgba(20,184,166,.28), transparent 26rem),
    linear-gradient(135deg, #0e1520 0%, #111c2a 48%, #334155 100%);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 86px 86px;
  opacity: .14;
  transform: rotate(-6deg) scale(1.15);
}
.hero-card {
  position: relative;
  z-index: 1;
  width: min(720px, 100%);
  text-align: center;
}
.eyebrow {
  margin: 0 0 14px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  margin: 0 auto 18px;
  max-width: 720px;
  font-size: clamp(48px, 7vw, 82px);
  line-height: .95;
  letter-spacing: -.075em;
}
.subhead {
  max-width: 640px;
  margin: 0 auto 22px;
  color: var(--mist);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.42;
}

.signup-card {
  width: min(520px, 100%);
  margin: 0 auto;
  padding: 24px;
  border-radius: 28px;
  background: rgba(14,21,32,.94);
  border: 1px solid rgba(248,250,252,.14);
  box-shadow: 0 28px 90px rgba(0,0,0,.38);
  text-align: left;
}
.signup-card h2 { margin: 0 0 6px; color: var(--near-white); font-size: 27px; line-height: 1.08; letter-spacing: -.045em; }
.signup-card p { margin: 0 0 16px; color: var(--mist); font-size: 14px; line-height: 1.48; }
.email-form {
  height: 64px;
  display: grid;
  grid-template-columns: 1fr 54px;
  gap: 8px;
  padding: 6px;
  border-radius: 999px;
  background: var(--near-white);
  border: 1px solid rgba(255,255,255,.20);
}
.email-form input {
  min-width: 0;
  border: 0;
  background: transparent;
  padding: 0 18px;
  color: #0e1520;
  font: inherit;
  font-size: 18px;
}
.email-form input::placeholder { color: #6f776f; }
.email-form button {
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 50%;
  color: var(--near-white);
  background: var(--dark);
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
}
.signup-card .fine-print { margin: 12px 4px 0; font-size: 12px; color: rgba(182,194,210,.72); text-align: center; }

.logo-strip {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
  padding: 36px 0 18px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(18px, 4vw, 46px);
  color: var(--ink);
  font-size: clamp(18px, 2.2vw, 28px);
  font-weight: 900;
  letter-spacing: -.04em;
}

.tiles {
  width: min(920px, calc(100% - 40px));
  margin: 48px auto 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}
.tiles article { min-height: 330px; display: flex; flex-direction: column; justify-content: flex-end; padding: 26px; border-radius: 28px; background: #111c2a; border: 1px solid var(--line); color: var(--near-white); }
.tiles article:nth-child(2) { background: #152236; }
.tiles article:nth-child(3) { background: #181b3e; }
.tiles article:nth-child(4) { background: #102a2c; }
.tag { display: inline-flex; align-self: flex-start; margin: 0 0 auto; padding: 9px 12px; border-radius: 999px; background: rgba(20,184,166,.14); color: var(--teal); font-size: 11px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.tiles h3 { margin: 90px 0 0; max-width: 390px; font-size: clamp(25px, 3vw, 36px); line-height: 1.05; letter-spacing: -.06em; }

.bottom-cta {
  width: min(920px, calc(100% - 40px));
  margin: 72px auto 0;
  padding: clamp(42px, 6vw, 72px) 24px;
  border-radius: 30px;
  color: var(--near-white);
  text-align: center;
  background: linear-gradient(135deg, #111c2a, #0e1520 56%, #334155);
}
.bottom-cta h2 { margin: 0 auto 12px; max-width: 640px; font-size: clamp(36px, 5vw, 58px); line-height: 1; letter-spacing: -.065em; }
.bottom-cta p { max-width: 620px; margin: 0 auto 24px; color: rgba(255,255,255,.72); font-size: 18px; line-height: 1.5; }
.button { display: inline-flex; min-height: 54px; align-items: center; justify-content: center; padding: 15px 22px; border-radius: 999px; color: #0e1520; background: linear-gradient(135deg, var(--teal), #2dd4bf); font-weight: 900; }

.footer {
  width: min(920px, calc(100% - 40px));
  margin: 78px auto 0;
  padding: 28px 0 46px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
}
.footer p { margin: 0; }
.footer a { color: var(--teal); font-weight: 800; }

@media (max-width: 760px) {
  .topbar { width: calc(100% - 32px); }
  .hero { min-height: 660px; padding: 96px 16px 54px; }
  .signup-card { padding: 18px; border-radius: 24px; }
  .email-form { height: auto; grid-template-columns: 1fr; border-radius: 24px; padding: 10px; }
  .email-form input { min-height: 48px; text-align: center; }
  .email-form button { width: 100%; border-radius: 18px; }
  .tiles { grid-template-columns: 1fr; }
  .tiles article { min-height: 260px; }
  .footer { flex-direction: column; }
}