:root {
  --ink: #0c1218;
  --ink-2: #15202b;
  --panel: rgba(18, 28, 38, 0.72);
  --line: rgba(180, 210, 230, 0.14);
  --text: #e8eef4;
  --muted: #9aafc0;
  --accent: #3db8a8;
  --accent-2: #f0a35a;
  --glow: rgba(61, 184, 168, 0.22);
  --font-display: "Syne", "Manrope", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--ink);
  line-height: 1.55;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 90% 60% at 10% -10%, rgba(61, 184, 168, 0.18), transparent 55%),
    radial-gradient(ellipse 70% 50% at 95% 15%, rgba(240, 163, 90, 0.12), transparent 50%),
    linear-gradient(165deg, #0a1016 0%, #121c28 42%, #0d151c 100%);
}

.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.55), transparent 70%);
  pointer-events: none;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 1120px;
  margin: 0 auto;
  padding: 1.25rem 1.25rem 0;
}

.logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.02em;
  color: var(--text);
  text-decoration: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem 1.15rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}

.site-nav a:hover {
  color: var(--text);
}

.nav-cta {
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text) !important;
  background: rgba(255, 255, 255, 0.04);
}

.hero {
  max-width: 1120px;
  margin: 0 auto;
  padding: 4.5rem 1.25rem 3.5rem;
}

.brand-mark {
  margin: 0 0 0.75rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.6rem, 7vw, 4.4rem);
  letter-spacing: -0.03em;
  line-height: 1;
  background: linear-gradient(105deg, #eaf6f4 10%, var(--accent) 55%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero h1 {
  margin: 0;
  max-width: 18ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.35rem, 2.6vw, 1.85rem);
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.hero-lead {
  margin: 1.25rem 0 0;
  max-width: 42rem;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.25rem;
  border-radius: 10px;
  font-weight: 650;
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.btn.primary {
  background: var(--accent);
  color: #06221e;
  box-shadow: 0 10px 30px var(--glow);
}

.btn.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}

.section {
  max-width: 1120px;
  margin: 0 auto;
  padding: 2.75rem 1.25rem;
}

.section.alt {
  background: var(--panel);
  border-block: 1px solid var(--line);
  max-width: none;
  padding-inline: max(1.25rem, calc((100% - 1120px) / 2 + 1.25rem));
}

.section h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.02em;
}

.section-lead {
  margin: 0.65rem 0 0;
  color: var(--muted);
  max-width: 40rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.75rem;
}

.feature-grid article,
.version-grid article {
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(8, 14, 20, 0.45);
}

.feature-grid h3,
.version-grid h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-display);
  font-size: 1.1rem;
}

.feature-grid p,
.version-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.benefit-list {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.85rem;
  max-width: 48rem;
}

.benefit-list li {
  padding: 0.9rem 1rem;
  border-left: 3px solid var(--accent);
  background: rgba(8, 14, 20, 0.35);
  border-radius: 0 10px 10px 0;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.25rem;
}

.chips span {
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 0.92rem;
}

.version-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.steps {
  margin: 1.5rem 0 0;
  padding-left: 1.25rem;
  max-width: 40rem;
  color: var(--muted);
}

.steps li {
  margin: 0.55rem 0;
}

.site-footer {
  max-width: 1120px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 3rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--accent);
}

@media (max-width: 720px) {
  .hero {
    padding-top: 2.75rem;
  }

  .site-nav a:not(.nav-cta) {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .btn:hover {
    transform: none;
  }
}