:root {
  color-scheme: light dark;
  --bg: #0c1017;
  --panel: #141b25;
  --line: #2a3543;
  --ink: #ecf1f8;
  --muted: #9aaec2;
  --green: #7be0bf;
  --link: #7be0bf;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif;
  line-height: 1.6;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.shell {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(20, 27, 37, 0.95);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .shell {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
}

.brand {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.brand span { color: var(--green); }

.main-nav {
  display: flex;
  gap: 20px;
}

.main-nav a {
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}

.main-nav a:hover { color: var(--ink); }

.hero {
  padding: 80px 0;
  text-align: center;
}

.hero h1 {
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.2;
  letter-spacing: -1px;
  margin: 0 0 16px;
}

.hero p {
  color: var(--muted);
  font-size: clamp(15px, 2.5vw, 18px);
  max-width: 700px;
  margin: 0 auto 28px;
}

.cta-button {
  display: inline-block;
  background: var(--green);
  color: #092b22;
  padding: 14px 26px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(123, 224, 191, 0.2);
}

.diensten, .projecten, .contact {
  padding: 70px 0;
}

.diensten h2, .projecten h2, .contact h2 {
  font-size: 28px;
  margin: 0 0 36px;
  text-align: center;
}

.grid {
  display: grid;
  gap: 20px;
}

@media (min-width: 700px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
}

.diensten article {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
}

.diensten h3 {
  font-size: 18px;
  margin: 0 0 10px;
}

.diensten p {
  color: var(--muted);
  margin: 0;
}

.cards {
  display: grid;
  gap: 20px;
}

@media (min-width: 700px) {
  .cards { grid-template-columns: repeat(3, 1fr); }
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 24px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.card:hover {
  border-color: var(--green);
  transform: translateY(-2px);
}

.card h3 {
  font-size: 18px;
  margin: 0 0 10px;
}

.card p {
  color: var(--muted);
  margin: 0 0 12px;
}

.card-url {
  margin: 0;
  font-size: 14px;
}

.contact p {
  color: var(--muted);
  margin: 0 0 24px;
}

.contact-details {
  display: grid;
  gap: 24px;
}

@media (min-width: 600px) {
  .contact-details { grid-template-columns: 1fr 1fr; }
}

.contact-details div {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
}

.contact-details strong {
  display: block;
  color: var(--ink);
  margin-bottom: 6px;
  font-size: 14px;
}

.contact-details p {
  margin: 4px 0;
  font-size: 15px;
}

.contact-details a {
  color: var(--ink);
}

.contact-legal {
  margin-top: 28px;
  font-size: 13px;
  color: var(--muted);
  text-align: center;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 30px 0;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}