:root {
  --bg: #071523;
  --bg-alt: #0c1f33;
  --text: #f8fbff;
  --muted: #9fb2c4;
  --border: rgba(255, 255, 255, 0.1);
  --primary: #46d6a0;
  --primary-ink: #041018;
  --max: 1100px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Ubuntu, Cantarell, "Noto Sans", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.skip {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--primary);
  color: var(--primary-ink);
  padding: 0.5rem 1rem;
  z-index: 100;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 21, 35, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}
.logo {
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
}
nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  align-items: center;
}
nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
nav a:hover { color: var(--text); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
}
.btn-sm { padding: 0.45rem 0.9rem; font-size: 0.9rem; }
.btn.primary {
  background: var(--primary);
  color: var(--primary-ink);
}
.btn.primary:hover { filter: brightness(1.05); text-decoration: none; }
.btn.secondary {
  border-color: var(--border);
  color: var(--text);
}
.btn.secondary:hover { border-color: var(--muted); text-decoration: none; }

.hero {
  padding: 4.5rem 0 3.5rem;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(70, 214, 160, 0.15), transparent);
}
.hero h1 {
  font-size: clamp(1.9rem, 4.5vw, 2.85rem);
  line-height: 1.15;
  margin: 0.4rem 0 1rem;
  max-width: 18ch;
}
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0;
}
.lede {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 42rem;
  margin: 0 0 1.75rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.section { padding: 3.5rem 0; }
.section.alt { background: var(--bg-alt); }
.section h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin: 0 0 0.5rem;
}
.section-intro {
  color: var(--muted);
  max-width: 40rem;
  margin: 0 0 2rem;
}

.grid.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}
.card {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.35rem 1.4rem;
  background: rgba(255, 255, 255, 0.02);
}
.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.steps {
  margin: 1.5rem 0;
  padding-left: 1.25rem;
  color: var(--muted);
}
.steps li { margin-bottom: 0.85rem; }
.steps strong { color: var(--text); }
.note {
  color: var(--muted);
  font-size: 0.95rem;
  border-top: 1px solid var(--border);
  padding-top: 1.25rem;
}

.cta { text-align: center; }
.cta-inner { max-width: 36rem; }
.cta h2 { margin-bottom: 0.75rem; }
.cta p { color: var(--muted); }
.fine { font-size: 0.9rem; margin-top: 1.5rem; }

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
}

@media (max-width: 640px) {
  .hero { padding-top: 3rem; }
  nav .btn-sm { display: none; }
}