:root {
  --bg: #242424;
  --text: #ffffff;
  --accent: #3eaa1e;
  --accent-soft: #4cae4c;
  --muted: rgba(255, 255, 255, 0.76);
  --line: rgba(255, 255, 255, 0.12);
  --max-w: 1080px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 50% -8%, rgba(62, 170, 30, 0.13), transparent 48%),
    linear-gradient(180deg, #2b2b2b 0%, var(--bg) 40%);
  font-family: Inter, "Segoe UI", Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

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

/* ── Header ──────────────────────────────────────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(36, 36, 36, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  display: flex;
  align-items: center;
}

.wordmark-logo {
  display: block;
  height: 32px;
  width: auto;
}

.header-cta {
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.01em;
  transition: color 160ms ease;
}

.header-cta:hover {
  color: var(--text);
}

/* ── Hero ────────────────────────────────────────────────── */

.hero {
  display: grid;
  place-items: center;
  min-height: calc(100svh - 64px);
  padding: 80px 32px 64px;
  text-align: center;
}

.hero-content {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--accent-soft);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 28px;
  font-size: clamp(4.5rem, 14vw, 9rem);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.06em;
}

.hero-sub {
  margin: 0 auto;
  max-width: 44ch;
  color: var(--muted);
  font-size: clamp(1rem, 2.5vw, 1.15rem);
  line-height: 1.65;
}

/* ── Features ────────────────────────────────────────────── */

.features {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px 100px;
}

.feature-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  padding: 28px 24px 26px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  text-align: left;
}

.feature-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: 0 0 18px;
  border: 1px solid rgba(62, 170, 30, 0.25);
  border-radius: 12px;
  background: rgba(62, 170, 30, 0.08);
  color: var(--accent-soft);
}

.feature-icon svg {
  width: 22px;
  height: 22px;
}

.feature-card h2 {
  margin: 0 0 10px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ── Footer ──────────────────────────────────────────────── */

.site-footer {
  padding: 52px 32px 48px;
  border-top: 1px solid var(--line);
  text-align: center;
}

.footer-label {
  margin: 0 0 22px;
  color: var(--muted);
  font-size: 0.88rem;
  letter-spacing: 0.01em;
}

.social-links {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin: 0 0 36px;
}

.social-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 54px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--accent-soft);
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background-color 160ms ease,
    color 160ms ease;
}

.social-button:hover {
  border-color: rgba(76, 174, 76, 0.65);
  background: rgba(62, 170, 30, 0.12);
  color: var(--text);
  transform: translateY(-1px);
}

.social-button svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

.copyright {
  margin: 0;
  color: rgba(255, 255, 255, 0.28);
  font-size: 0.78rem;
}

/* ── Responsive ──────────────────────────────────────────── */

@media (max-width: 768px) {
  .header-inner {
    height: 56px;
    padding: 0 20px;
  }

  .hero {
    min-height: calc(100svh - 56px);
    padding: 60px 20px 52px;
  }

  .features {
    padding: 0 20px 72px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
    max-width: 440px;
    margin: 0 auto;
    gap: 14px;
  }

  .site-footer {
    padding: 44px 20px 40px;
  }
}

@media (max-width: 480px) {
  .social-button {
    width: 50px;
    height: 50px;
  }

  .social-links {
    gap: 10px;
  }
}