:root {
  --inkt: #0F141F;
  --nacht: #1A2130;
  --nacht-rand: #2A3242;
  --papier: #F7F6F1;
  --wit: #FFFFFF;
  --signaal: #C6F04D;
  --mos: #55700A;
  --steen: #5B6472;
  --mist: #E3E1D8;
  --tekst-op-donker: #A8B0BD;
  --display: 'Space Grotesk', sans-serif;
  --body: 'Instrument Sans', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--body);
  color: var(--inkt);
  background: var(--papier);
  line-height: 1.6;
}

h1, h2, h3 {
  font-family: var(--display);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0;
}

h2 { font-size: clamp(30px, 4vw, 42px); font-weight: 700; margin-top: 14px; }
h3 { font-size: 21px; font-weight: 600; }

a { color: var(--mos); }
a:hover { color: #3E5A00; }

.eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--mos);
  margin: 0;
}
.eyebrow-lime { color: var(--signaal); }

.btn {
  display: inline-block;
  font-size: 16px;
  font-weight: 600;
  padding: 15px 28px;
  border-radius: 12px;
  text-decoration: none;
  text-align: center;
}
.btn-lime { background: var(--signaal); color: var(--inkt); }
.btn-lime:hover { background: #B4DE3B; color: var(--inkt); }
.btn-ghost { border: 1px solid var(--steen); color: var(--papier); font-weight: 500; }
.btn-ghost:hover { border-color: var(--papier); color: var(--wit); }
.btn-inkt { background: var(--inkt); color: var(--papier); }
.btn-inkt:hover { background: var(--nacht); color: var(--wit); }

/* ---- navigatie ---- */

.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--inkt);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px clamp(20px, 5.5vw, 80px);
}

.wordmark {
  font-family: var(--display);
  font-weight: 700;
  font-size: 26px;
  letter-spacing: -0.04em;
  color: var(--papier);
  text-decoration: none;
  margin: 0;
}
.wordmark .ai {
  background: var(--signaal);
  color: var(--inkt);
  border-radius: 6px;
  padding: 0 4px;
  display: inline-block;
}

.nav-links { display: flex; align-items: center; gap: 36px; }
.nav-links a { color: var(--papier); text-decoration: none; font-size: 15px; }
.nav-links a:hover { color: var(--signaal); }
.btn-nav { padding: 11px 22px; font-size: 15px; }
.nav-links a.btn-nav { color: var(--inkt); }

.hamburger { display: none; background: none; border: none; padding: 10px; cursor: pointer; }
.hamburger span { display: block; width: 22px; height: 2px; background: var(--papier); margin: 5px 0; }
.hamburger span.short { width: 14px; background: var(--signaal); }

/* ---- hero ---- */

.hero {
  background: var(--inkt);
  color: var(--papier);
  display: flex;
  align-items: center;
  gap: 64px;
  padding: clamp(56px, 9vw, 120px) clamp(20px, 5.5vw, 80px);
}

.hero-tekst { max-width: 660px; }
.hero h1 {
  font-size: clamp(40px, 5.5vw, 68px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin: 24px 0;
}
.lead { font-size: 18px; line-height: 1.65; color: var(--tekst-op-donker); max-width: 540px; margin: 0 0 30px 0; }
.hero-acties { display: flex; gap: 16px; flex-wrap: wrap; }

.code-card {
  flex-shrink: 0;
  width: min(520px, 100%);
  background: var(--nacht);
  border: 1px solid var(--nacht-rand);
  border-radius: 18px;
  overflow: hidden;
}
.code-dots { display: flex; gap: 8px; padding: 16px 20px; border-bottom: 1px solid var(--nacht-rand); }
.code-dots i { width: 12px; height: 12px; border-radius: 50%; background: var(--steen); }
.code-dots i.lime { background: var(--signaal); }
.code-card pre { margin: 0; padding: 24px 28px; overflow-x: auto; }
.code-card code { font-family: var(--mono); font-size: 15px; line-height: 2; color: var(--papier); }
.code-card .kw, .code-card .str { color: var(--signaal); }

/* ---- secties ---- */

.sectie { padding: clamp(56px, 8vw, 88px) clamp(20px, 5.5vw, 80px); }
.sectie-wit { background: var(--wit); }
.sectie-donker { background: var(--inkt); color: var(--papier); }

.kaarten { display: grid; gap: 28px; margin-top: 48px; }
.kaarten-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.kaarten-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.kaart {
  background: var(--papier);
  border: 1px solid var(--mist);
  border-radius: 18px;
  padding: 34px;
}
.kaart h3 { margin: 16px 0 12px 0; }
.kaart p { margin: 0; font-size: 15px; line-height: 1.65; color: var(--steen); }

.kaart-donker { background: var(--inkt); border-color: var(--inkt); color: var(--papier); }
.kaart-donker p { color: var(--tekst-op-donker); }

.kaart-nacht { background: var(--nacht); border-color: var(--nacht-rand); color: var(--papier); }
.kaart-nacht p { color: var(--tekst-op-donker); }
.kaart-nacht .thumb {
  height: 140px;
  border: 1px dashed #3A4356;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--tekst-op-donker);
  margin-bottom: 4px;
}
.kaart-nacht .tags {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--signaal);
  margin-top: 16px;
}

.stappen { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 28px; margin-top: 48px; }
.stap { border-top: 3px solid var(--signaal); padding-top: 20px; }
.stap-nr { font-family: var(--mono); font-size: 14px; color: var(--mos); margin: 0 0 10px 0; }
.stap h3 { font-size: 20px; margin-bottom: 10px; }
.stap p { margin: 0; font-size: 14px; color: var(--steen); }

/* ---- over ---- */

.over-grid { display: flex; gap: 64px; align-items: center; }
.foto-placeholder {
  width: 340px;
  height: 340px;
  flex-shrink: 0;
  background: var(--papier);
  border: 1px dashed #C9C6BA;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--steen);
}
.lead-donker { font-size: 17px; line-height: 1.7; color: var(--steen); max-width: 720px; margin: 20px 0 24px 0; }
.feiten { display: flex; gap: 28px; flex-wrap: wrap; font-family: var(--mono); font-size: 13px; }
.feiten p { margin: 0; }
.feiten span { color: var(--mos); }

/* ---- cta & footer ---- */

.cta {
  background: var(--signaal);
  color: var(--inkt);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 56px;
  padding: clamp(48px, 7vw, 72px) clamp(20px, 5.5vw, 80px);
}
.cta h2 { font-size: clamp(30px, 4vw, 46px); margin: 0 0 12px 0; }
.cta p { margin: 0; font-size: 17px; max-width: 600px; }
.cta-alt { margin-top: 18px; font-size: 15px; }
.cta-alt a { color: var(--inkt); font-weight: 600; }

.contact-form {
  flex-shrink: 0;
  width: min(460px, 100%);
  background: var(--wit);
  border-radius: 18px;
  padding: 28px;
  display: flex;
  flex-direction: column;
}
.contact-form label {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--steen);
  margin: 0 0 6px 0;
}
.contact-form input,
.contact-form textarea {
  font-family: var(--body);
  font-size: 16px;
  color: var(--inkt);
  background: var(--papier);
  border: 1px solid var(--mist);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 18px;
  width: 100%;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: 2px solid var(--inkt);
  outline-offset: 1px;
  border-color: var(--inkt);
}
.contact-form textarea { resize: vertical; }
.contact-form .hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.contact-form button { border: none; cursor: pointer; font-family: var(--body); }
.contact-form button:disabled { opacity: 0.6; cursor: wait; }
.form-status { margin: 12px 0 0 0; font-size: 14px; min-height: 20px; }

.footer {
  background: var(--inkt);
  color: var(--tekst-op-donker);
  display: flex;
  justify-content: space-between;
  gap: 48px;
  padding: 48px clamp(20px, 5.5vw, 80px) 56px;
  flex-wrap: wrap;
}
.footer .wordmark { font-size: 24px; }
.footer-tagline { font-size: 13px; margin: 12px 0 4px 0; }
.footer-copy { font-size: 13px; color: var(--steen); margin: 0; }
.footer-kolommen { display: flex; gap: 80px; flex-wrap: wrap; }
.footer-kop {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--steen);
  margin: 0 0 10px 0;
}
.footer-kolommen p { margin: 0 0 8px 0; font-size: 14px; }
.footer-kolommen a { display: block; color: var(--tekst-op-donker); text-decoration: none; font-size: 14px; margin-bottom: 8px; }
.footer-kolommen a:hover { color: var(--signaal); }

/* ---- responsief ---- */

@media (max-width: 1100px) {
  .hero { flex-direction: column; align-items: flex-start; }
  .code-card { width: 100%; max-width: 520px; }
  .stappen { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kaarten-3 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .kaarten-2 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
  .over-grid { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 800px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--inkt);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 8px 20px 24px;
    border-bottom: 1px solid var(--nacht-rand);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 0; font-size: 17px; }
  .nav-links a.btn-nav { margin-top: 8px; width: 100%; }
  .hamburger { display: block; }
  .stappen { grid-template-columns: 1fr; }
  .cta { flex-direction: column; align-items: flex-start; }
  .foto-placeholder { width: 100%; max-width: 340px; }
  .footer { flex-direction: column; }
  .footer-kolommen { gap: 40px; }
}