:root {
  --bg: #080b0c;
  --panel: #0f1517;
  --line: #1f2d31;
  --text: #d8e3e5;
  --muted: #92a7ad;
  --accent: #1fb7bb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: radial-gradient(circle at 80% -20%, rgba(31, 183, 187, 0.12), transparent 40%), var(--bg);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

.shell {
  width: min(1040px, calc(100% - 2.5rem));
  margin: 0 auto;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  position: sticky;
  top: 0;
  backdrop-filter: blur(8px);
  background: rgba(8, 11, 12, 0.75);
  z-index: 5;
}

nav {
  display: flex;
  gap: 1rem;
}

nav a,
.link,
.logo {
  color: var(--muted);
}

nav a:hover,
nav a.active,
.link:hover,
.logo {
  color: var(--text);
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #072325;
  border: 0;
  border-radius: 0.6rem;
  font-weight: 600;
  padding: 0.65rem 1rem;
}

.hero,
.panel {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0));
  border: 1px solid var(--line);
  border-radius: 1rem;
}

.hero {
  padding: 2.4rem;
  margin-top: 1.5rem;
}

.hero h1 {
  font-size: clamp(2rem, 6vw, 3rem);
  max-width: 18ch;
  margin: 0.5rem 0;
}

.hero p {
  max-width: 58ch;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-size: 0.8rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.section {
  margin: 3rem 0;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  padding: 1rem;
}

.timeline {
  display: grid;
  gap: 0.75rem;
  list-style: none;
  padding: 0;
}

.timeline li {
  border-left: 2px solid var(--accent);
  padding: 0.5rem 0 0.5rem 0.75rem;
  background: rgba(31, 183, 187, 0.05);
}

.timeline span {
  display: inline-block;
  min-width: 5.5rem;
  color: var(--accent);
  font-weight: 600;
}

.waitlist-form {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: end;
}

.waitlist-form label {
  display: grid;
  gap: 0.35rem;
}

input {
  background: #0a1113;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 0.5rem;
  padding: 0.6rem;
  min-width: 260px;
}

.muted,
p,
li {
  color: var(--muted);
}

.footer {
  padding: 2rem 0 3rem;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(circle at center, black 40%, transparent 85%);
  pointer-events: none;
  z-index: -1;
}

.bg-system {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.24;
  background-image: radial-gradient(circle at 18% 24%, rgba(31, 183, 187, 0.45) 0 2px, transparent 3px),
    radial-gradient(circle at 72% 30%, rgba(31, 183, 187, 0.45) 0 2px, transparent 3px),
    linear-gradient(120deg, transparent 48%, rgba(31, 183, 187, 0.16) 49%, rgba(31, 183, 187, 0.16) 51%, transparent 52%),
    linear-gradient(300deg, transparent 43%, rgba(31, 183, 187, 0.12) 44%, rgba(31, 183, 187, 0.12) 46%, transparent 47%);
}

.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;
}

@media (max-width: 720px) {
  .site-header {
    flex-wrap: wrap;
  }

  nav {
    order: 3;
    width: 100%;
  }
}