/* ==========================================================================
   Fundament Onderzoek — stylesheet
   Eén bestand, geen externe afhankelijkheden (geen Google Fonts, geen
   trackers) — snel en AVG-vriendelijk.
   ========================================================================== */


:root {
  --ink:        #2c3327;
  --ink-soft:   #55604c;
  --blue:       #5c6d55;   /* merkgroen, direct uit het logobestand */
  --blue-dark:  #4a5844;
  --accent:     #566650;
  --accent-soft:#e9ecdb;
  --sand:       #c2b184;   /* alleen op donkergroene vlakken */
  --paper:      #ffffff;
  --tint:       #eff1e1;
  --tint-deep:  #e2e5d2;
  --line:       #d5d9c4;

  --serif: Georgia, "Times New Roman", "Liberation Serif", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, sans-serif;

  --wrap: 1080px;
  --narrow: 720px;
}

/* --- Basis ---------------------------------------------------------------- */

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--ink);
  background: #fdfdf7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
  margin: 0 0 .6em;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 1.4rem + 2.4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--blue); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--accent); }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.skip-link {
  position: absolute; left: -9999px;
  background: var(--blue); color: #fff;
  padding: .7rem 1.1rem; z-index: 100; text-decoration: none;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* --- Layout --------------------------------------------------------------- */

.wrap {
  width: min(100% - 2.5rem, var(--wrap));
  margin-inline: auto;
}

.narrow { max-width: var(--narrow); }

section { padding: clamp(3rem, 6vw, 5rem) 0; }
section.tint { background: var(--tint); }

.lead {
  font-size: 1.2rem;
  line-height: 1.65;
  color: var(--ink-soft);
}

.eyebrow {
  font-family: var(--sans);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 .8rem;
}

.rule {
  width: 56px; height: 3px;
  background: var(--accent);
  border: 0; margin: 0 0 1.6rem;
}

/* --- Header --------------------------------------------------------------- */

.site-header {
  border-bottom: 1px solid var(--line);
  background: #fdfdf7;
  position: sticky; top: 0; z-index: 50;
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: .5rem 2rem;
  padding-block: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: .75rem;
  text-decoration: none;
  color: var(--ink);
}
.brand:hover { color: var(--ink); }

.brand .mark { width: 96px; height: 96px; flex: none; display: block; }
@media (max-width: 560px) { .brand .mark { width: 72px; height: 72px; } }

.brand .name {
  font-family: var(--serif);
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
}
.brand .name span {
  display: block;
  font-family: var(--sans);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: .18rem;
}

.site-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .25rem 1.5rem;
  margin: 0; padding: 0;
}

.site-nav a {
  text-decoration: none;
  font-size: .95rem;
  font-weight: 600;
  color: var(--ink-soft);
  padding: .35rem 0;
  border-bottom: 2px solid transparent;
  display: inline-block;
}
.site-nav a:hover { color: var(--blue); }
.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

/* --- Knoppen -------------------------------------------------------------- */

.btn {
  display: inline-block;
  background: var(--blue);
  color: #fff;
  font-weight: 600;
  font-size: 1rem;
  padding: .8rem 1.5rem;
  border-radius: 2px;
  text-decoration: none;
  border: 2px solid var(--blue);
  transition: background .15s ease, border-color .15s ease;
}
.btn:hover { background: var(--blue-dark); border-color: var(--blue-dark); color: #fff; }

.btn-ghost {
  background: transparent;
  color: var(--blue);
  border-color: var(--line);
}
.btn-ghost:hover { background: transparent; border-color: var(--blue); color: var(--blue); }

.btn-row {
  display: flex; flex-wrap: wrap; gap: .8rem;
  margin-top: 2rem;
}

/* --- Hero ----------------------------------------------------------------- */

.hero {
  position: relative;
  overflow: hidden;
  background: var(--blue);
  background-image:
    linear-gradient(135deg, #66765d 0%, #4e5c47 55%, #3a4534 100%);
  color: #fff;
  padding: clamp(3.5rem, 8vw, 6.5rem) 0;
}
/* het beeldmerk als groot watermerk rechts in de hero */
.hero::after {
  content: "";
  position: absolute;
  right: -70px; top: 50%;
  transform: translateY(-50%);
  width: 440px; height: 440px;
  background: url("logo-creme-transparant.png") no-repeat center / contain;
  opacity: .11;
  pointer-events: none;
}
.hero .wrap { position: relative; z-index: 1; }
@media (max-width: 960px) { .hero::after { display: none; } }
.hero h1 { color: #fff; max-width: 20ch; }
.hero .lead { color: #dfe4d2; max-width: 56ch; }
.hero .eyebrow { color: var(--sand); }
.hero .rule { background: var(--sand); }
.hero .btn { background: #fff; color: var(--blue); border-color: #fff; }
.hero .btn:hover { background: var(--accent-soft); border-color: var(--accent-soft); color: var(--blue-dark); }
.hero .btn-ghost {
  background: transparent; color: #fff; border-color: rgba(255,255,255,.45);
}
.hero .btn-ghost:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,.08); }

.page-head {
  background: var(--tint);
  border-bottom: 1px solid var(--line);
  padding: clamp(2.5rem, 5vw, 4rem) 0;
}
.page-head p.lead { max-width: 60ch; margin-bottom: 0; }

/* --- Grids ---------------------------------------------------------------- */

.grid {
  display: grid;
  gap: 1.75rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 3px solid var(--blue);
  padding: 1.75rem;
}
.card h3 { margin-bottom: .5rem; }
.card p { color: var(--ink-soft); font-size: 1rem; margin-bottom: 0; }

.split {
  display: grid;
  gap: clamp(2rem, 5vw, 4rem);
  grid-template-columns: 1fr;
  align-items: start;
}
@media (min-width: 820px) {
  .split { grid-template-columns: 1.15fr .85fr; }
  .split.reverse { grid-template-columns: .85fr 1.15fr; }
}

/* --- Lijsten -------------------------------------------------------------- */

.checks {
  list-style: none;
  margin: 0; padding: 0;
}
.checks li {
  position: relative;
  padding-left: 1.9rem;
  margin-bottom: .85rem;
  color: var(--ink-soft);
}
.checks li::before {
  content: "";
  position: absolute;
  left: 0; top: .55rem;
  width: .55rem; height: .55rem;
  background: var(--accent);
  transform: rotate(45deg);
}
.checks strong { color: var(--ink); font-weight: 600; }

.steps {
  list-style: none;
  counter-reset: step;
  margin: 0; padding: 0;
  display: grid; gap: 1.5rem;
}
.steps li {
  counter-increment: step;
  display: grid;
  grid-template-columns: 2.75rem 1fr;
  gap: 1.25rem;
  align-items: start;
}
.steps li::before {
  content: counter(step);
  font-family: var(--serif);
  font-size: 1.15rem;
  width: 2.75rem; height: 2.75rem;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--blue);
  background: var(--paper);
}
.steps h3 { margin-bottom: .25rem; }
.steps p { color: var(--ink-soft); margin-bottom: 0; }

/* --- Dienst-blokken ------------------------------------------------------- */

.service {
  border-top: 1px solid var(--line);
  padding: 2rem 0;
  display: grid;
  gap: .5rem 2.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 820px) {
  .service { grid-template-columns: 1fr 1.6fr; }
}
.service:last-of-type { border-bottom: 1px solid var(--line); }
.service h3 { margin-bottom: 0; }
.service .meta { color: var(--accent); font-size: .85rem; font-weight: 700;
  letter-spacing: .08em; text-transform: uppercase; margin-top: .4rem; }
.service p { color: var(--ink-soft); margin-bottom: .8rem; }

/* --- Personen ------------------------------------------------------------- */

.person {
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 3px solid var(--blue);
  padding: 2rem;
}
.person .avatar {
  width: 118px; height: 118px;
  border-radius: 50%;
  background: var(--tint-deep);
  color: var(--blue);
  display: grid; place-items: center;
  font-family: var(--serif);
  font-size: 1.65rem;
  letter-spacing: .02em;
  margin-bottom: 1.25rem;
  overflow: hidden;
}
.person .avatar img { width: 100%; height: 100%; object-fit: cover; }
.person h3 { margin-bottom: .15rem; font-size: 1.35rem; }
.person .role {
  font-size: .8rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--accent);
  margin: 0 0 1.1rem;
}
.person p { color: var(--ink-soft); }
.person .profile-link {
  display: inline-block; margin-top: .4rem;
  font-weight: 600; font-size: .95rem;
}

/* --- Quote ---------------------------------------------------------------- */

.quote {
  border-left: 3px solid var(--accent);
  padding-left: 1.5rem;
  font-family: var(--serif);
  font-size: 1.35rem;
  line-height: 1.5;
  color: var(--ink);
  margin: 0;
}
.quote footer { font-family: var(--sans); font-size: .9rem;
  color: var(--ink-soft); margin-top: .9rem; }

/* --- Contactblok ---------------------------------------------------------- */

.contact-list {
  list-style: none; margin: 0; padding: 0;
}
.contact-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}
.contact-list li:first-child { border-top: 1px solid var(--line); }
.contact-list .label {
  display: block;
  font-size: .78rem; font-weight: 700; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-soft);
  margin-bottom: .15rem;
}
.contact-list .value { font-size: 1.1rem; }

.callout {
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  padding: 1.5rem 1.75rem;
}
.callout p:last-child { margin-bottom: 0; }

/* --- CTA-band ------------------------------------------------------------- */

.cta {
  background: var(--blue);
  background-image: linear-gradient(135deg, #607158 0%, #3a4534 100%);
  color: #fff;
  text-align: center;
}
.cta h2 { color: #fff; }
.cta p { color: #dfe4d2; max-width: 52ch; margin-inline: auto; }
.cta .btn { background: #fff; color: var(--blue); border-color: #fff; }
.cta .btn:hover { background: var(--accent-soft); border-color: var(--accent-soft); }
.cta .btn-row { justify-content: center; }

/* --- Footer --------------------------------------------------------------- */

.site-footer {
  background: #303a2b;
  color: #c6cdb6;
  padding: 3rem 0 2rem;
  font-size: .95rem;
}
.site-footer a { color: #eef0e2; }
.site-footer a:hover { color: var(--sand); }
.site-footer h4 {
  color: #fff; font-family: var(--sans); font-size: .78rem;
  letter-spacing: .12em; text-transform: uppercase; margin-bottom: .9rem;
}
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: .45rem; }
.footer-grid {
  display: grid; gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.15);
  margin-top: 2.5rem; padding-top: 1.25rem;
  display: flex; flex-wrap: wrap; gap: .5rem 1.5rem;
  justify-content: space-between;
  font-size: .85rem; color: #93a081;
}

/* --- Utilities ------------------------------------------------------------ */

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.center { text-align: center; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

@media print {
  .site-header, .cta, .btn-row { display: none; }
  body { color: #000; }
}

/* --- Logo in de footer ------------------------------------------------- */

.footer-logo { width: 92px; height: 92px; display: block; margin-bottom: 1.1rem; }