:root {
  --bg: #0d1117;
  --surface: #161b22;
  --border: #262d36;
  --text: #e6edf3;
  --muted: #9aa4b2;
  --accent: #3ddc97;
  --accent-ink: #0d1117;
  --radius: 14px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f8fa;
    --surface: #ffffff;
    --border: #e3e6ea;
    --text: #12161c;
    --muted: #5b6573;
    --accent: #12a66a;
    --accent-ink: #ffffff;
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }

h1, h2, h3, .logo { font-family: "Space Grotesk", sans-serif; }

/* Navigatie */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.logo { display: flex; align-items: center; gap: .5rem; font-weight: 700; font-size: 1.15rem; color: var(--text); }
.logo-mark {
  display: grid; place-items: center;
  width: 1.9rem; height: 1.9rem;
  border-radius: 8px;
  background: var(--accent); color: var(--accent-ink);
}
.nav nav { display: flex; gap: 1.25rem; }
.nav nav a { color: var(--muted); font-size: .95rem; }
.nav nav a:hover { color: var(--text); }

main { max-width: 1040px; margin: 0 auto; padding: 0 1.25rem; }

/* Hero */
.hero { padding: 6rem 0 4rem; }
.eyebrow { color: var(--accent); font-weight: 500; margin-bottom: .75rem; }
.hero h1 { font-size: clamp(2.1rem, 6vw, 3.6rem); line-height: 1.1; max-width: 16ch; }
.hero h1 span { color: var(--accent); }
.lead { color: var(--muted); font-size: 1.15rem; max-width: 55ch; margin: 1.25rem 0 2rem; }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; }

.btn {
  display: inline-block;
  padding: .75rem 1.3rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 500;
  transition: transform .15s, border-color .15s;
}
.btn:hover { transform: translateY(-2px); border-color: var(--accent); }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }

/* Secties */
.section { padding: 4rem 0; border-top: 1px solid var(--border); }
.section h2 { font-size: 1.9rem; margin-bottom: 1.5rem; }
.section > p { color: var(--muted); max-width: 60ch; margin-bottom: 1.5rem; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--accent); transform: translateY(-3px); }
.card .icon { font-size: 1.8rem; margin-bottom: .75rem; }
.card h3 { margin-bottom: .4rem; }
.card p { color: var(--muted); margin-bottom: .75rem; }
.card a { font-weight: 500; font-size: .95rem; }

.footer { text-align: center; color: var(--muted); padding: 2.5rem 1rem; border-top: 1px solid var(--border); font-size: .9rem; }

@media (max-width: 520px) {
  .nav nav { gap: .9rem; }
  .nav nav a { font-size: .88rem; }
  .hero { padding: 4rem 0 3rem; }
}