/* Reset & base */
@import url('https://unpkg.com/modern-css-reset/dist/reset.min.css');

:root {
  --clr-primary: #1E3A8A; /* blauw */
  --clr-accent: #10B981;  /* frisgroen */
  --clr-bg: #ffffff;
  --clr-text: #0b1220;
  --clr-muted: #5b6576;
  --radius: 12px;
  --shadow-sm: 0 4px 12px rgba(16,24,40,0.06);
  --shadow-md: 0 8px 24px rgba(16,24,40,0.08);
  --container: 1100px;
  --font-sans: 'Inter', system-ui, Segoe UI, Roboto, Arial, sans-serif;
  --font-display: 'Poppins', system-ui, Segoe UI, Roboto, Arial, sans-serif;
}

html { font-size: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--clr-text);
  background: var(--clr-bg);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

/* Typography */
h1, h2, h3, h4 { font-family: var(--font-display); color: var(--clr-primary); margin-bottom: 0.5em; }
h1 { font-size: clamp(2.25rem, 5vw, 3rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 4vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
p { margin-bottom: 1em; }
.lead { font-size: 1.2rem; color: var(--clr-muted); }

/* Layout helpers */
.container { max-width: var(--container); margin: 0 auto; padding: 0 1.25rem; }
.skip-link { position: absolute; left: -9999px; }
.skip-link:focus { left: 1rem; top: 1rem; background: var(--clr-bg); padding: 0.5rem; border-radius: var(--radius); box-shadow: var(--shadow-md); }
img, svg { max-width: 100%; height: auto; }

/* Buttons & links */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 1.25rem; border-radius: var(--radius);
  border: 1px solid transparent; text-decoration: none;
  font-weight: 600; transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}
.btn:focus-visible { outline: 3px solid var(--clr-accent); outline-offset: 3px; }
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn-primary { background: var(--clr-primary); color: #fff; }
.btn-primary:hover { background: #17356c; }
.btn-accent { background: var(--clr-accent); color: #fff; }
.btn-ghost { background: transparent; color: var(--clr-text); border-color: #d7dbe3; }
.btn-ghost:hover { color: var(--clr-primary); border-color: var(--clr-primary); }
.link { color: var(--clr-primary); text-decoration: none; font-weight: 600; }
.link:hover { text-decoration: underline; }

/* Header & navigation */
.site-header { position: sticky; top: 0; background: var(--clr-bg); border-bottom: 1px solid #eef0f4; z-index: 1000; }
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 0.5rem; font-weight: 700; color: var(--clr-text); text-decoration: none; }
.nav-toggle { display: none; background: none; border: 1px solid #d7dbe3; border-radius: 8px; padding: 8px 10px; cursor: pointer; }
.site-nav ul { display: flex; gap: 1.25rem; list-style: none; margin: 0; padding: 0; align-items: center; }
.site-nav a { color: var(--clr-text); text-decoration: none; padding: 6px 2px; }
.site-nav a:hover, .site-nav a:focus { color: var(--clr-primary); }
.site-nav a.active { color: var(--clr-primary); border-bottom: 2px solid var(--clr-primary); }

/* Hero & page hero */
.hero {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 2rem; align-items: center;
  padding: 4rem 0;
}
.hero-visual {
  aspect-ratio: 16/9; border-radius: var(--radius);
  background:
    radial-gradient(160px 160px at 30% 30%, rgba(30,58,138,0.20), transparent 60%),
    linear-gradient(135deg, rgba(16,185,129,0.18), transparent 60%),
    linear-gradient(180deg, #f8fafc, #ffffff);
  box-shadow: var(--shadow-md);
}
.page-hero { padding: 3rem 0 1rem; }

/* Sections & grids */
.features, .testimonials .cards, .portfolio-tease .grid { display: grid; gap: 1.25rem; }
.features { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); padding: 2.5rem 0; }
.feature, .card, .tile, .panel, .about-card {
  background: #fff; padding: 1.5rem; border-radius: var(--radius);
  box-shadow: var(--shadow-sm); transition: transform 0.2s, box-shadow 0.2s;
}
.feature:hover, .card:hover, .tile:hover, .panel:hover, .about-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.testimonials { padding: 2.5rem 0; }
.portfolio-tease { padding: 2.5rem 0; }
.portfolio-tease .tease-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
.portfolio-tease .grid { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.tile .ph { height: 160px; background: linear-gradient(135deg,#eef2ff,#e6fffa); border-radius: 10px; border: 1px dashed #c7d2fe; }

/* About page */
.about-hero { text-align: center; max-width: 800px; margin: 3rem auto 1rem; }
.about-grid {
  display: grid; gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  margin: 2rem 0 3rem;
}
.about-icon { height: 48px; margin-bottom: 1rem; }
.about-cta { padding: 2rem 0 3rem; }
.about-cta .cta-inner {
  background: linear-gradient(90deg, #f8fafc, #eef2ff);
  border: 1px solid #eef0f4; border-radius: var(--radius);
  padding: 1.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  flex-wrap: wrap;
}

/* Two column blocks (services pages, contact) */
.two-col { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 1.5rem; padding: 2rem 0 3rem; }
.list { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.5rem; }
.list-check li { position: relative; padding-left: 1.5rem; }
.list-check li::before {
  content: '✓'; position: absolute; left: 0; top: 0.1rem; color: var(--clr-accent); font-weight: 700;
}

/* CTA strip */
.cta-strip { background: linear-gradient(90deg, #f8fafc, #eef2ff); padding: 2.5rem 0; border-top: 1px solid #eef0f4; border-bottom: 1px solid #eef0f4; }
.cta-strip h2 { margin: 0 0 0.75rem; text-align: center; }

/* Footer */
.site-footer { background: #0f172a; color: #e2e8f0; margin-top: 2rem; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 1.5rem; padding: 2rem 0; }
.site-footer .brand { color: #e2e8f0; }
.site-footer a { color: #cbd5e1; text-decoration: none; }
.site-footer a:hover, .site-footer a:focus { color: var(--clr-accent); }
.subfooter { border-top: 1px solid #23314d; padding: 1rem 0; text-align: center; }

/* Responsive */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .site-nav { position: absolute; inset: 64px 0 0 0; background: var(--clr-bg); display: none; flex-direction: column; padding: 1rem; border-bottom: 1px solid #eef0f4; }
  .site-nav.open { display: flex; }
  .site-nav ul { flex-direction: column; align-items: flex-start; }
  .nav-toggle { display: inline-flex; }
}

/* Contact page layout */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  padding: 2rem 0 3rem;
}
.contact-form {
  background: #fff;
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: 1.25rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.form-group {
  display: flex;
  flex-direction: column;
}
.form-group.full {
  grid-column: 1 / -1;
}
label {
  font-weight: 600;
  margin-bottom: 0.25rem;
}
input, textarea {
  padding: 0.75rem;
  border: 1px solid #d7dbe3;
  border-radius: var(--radius);
  font: inherit;
}
input:focus, textarea:focus {
  outline: 2px solid var(--clr-accent);
  border-color: var(--clr-accent);
}
.contact-info {
  background: #fff;
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
}