:root{
  /* Erasmus MC huisstijlkleuren (teal + midnight blue) */
  --ink:#00216d;
  --muted:#5a6475;
  --line:#dde3ea;
  --accent:#008080;
  --accent-dark:#00216d;
  --accent-soft:#e6f2f1;
  --bg:#fbfbfa;
  --card:#ffffff;
  --max:1040px;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent-dark); text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;}

.wrap{max-width:var(--max); margin:0 auto; padding:0 1.5rem;}

/* ---------- top bar ---------- */
.topbar{
  border-bottom:1px solid var(--line);
  background:var(--card);
}
.topbar .wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:1.1rem 1.5rem;
  flex-wrap:wrap;
  gap:.75rem;
}
.brand{
  display:flex;
  align-items:baseline;
  gap:.6rem;
}
.brand .mark{
  font-weight:700;
  font-size:1.2rem;
  color:var(--accent-dark);
}
.brand .sub{
  font-size:.8rem;
  color:var(--muted);
}
nav.main a{
  margin-left:1.4rem;
  font-size:.92rem;
  color:var(--ink);
}
nav.main a:hover{color:var(--accent-dark);}

/* ---------- hero / search ---------- */
.hero{
  padding:3.2rem 0 2.4rem;
  text-align:center;
}
.hero h1{
  font-size:2.1rem;
  margin:0 0 .6rem;
  letter-spacing:-0.01em;
}
.hero .tagline{
  display:inline-block;
  font-size:.82rem;
  font-weight:600;
  letter-spacing:.04em;
  color:var(--accent);
  background:var(--accent-soft);
  padding:.35rem .9rem;
  border-radius:999px;
  margin-bottom:1rem;
}
.hero h2.subtitle{
  font-size:1.15rem;
  font-weight:500;
  color:var(--muted);
  margin:.2rem 0 1.6rem;
}
.hero p.lead{
  color:var(--muted);
  max-width:620px;
  margin:0 auto 1.8rem;
  font-size:1.05rem;
}
.search-box{
  max-width:560px;
  margin:0 auto;
  display:flex;
  gap:.5rem;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:999px;
  padding:.4rem .5rem .4rem 1.1rem;
  box-shadow:0 1px 3px rgba(0,0,0,.04);
}
.search-box input{
  flex:1;
  border:none;
  outline:none;
  background:transparent;
  font-size:1rem;
  font-family:inherit;
  color:var(--ink);
}
.search-box button{
  background:var(--accent);
  color:#fff;
  border:none;
  border-radius:999px;
  padding:.6rem 1.3rem;
  font-size:.9rem;
  font-weight:600;
  cursor:pointer;
}
.search-box button:hover{background:var(--accent-dark);}

.theme-chips{
  display:flex;
  gap:.5rem;
  justify-content:center;
  flex-wrap:wrap;
  margin-top:1.1rem;
}
.chip{
  font-size:.82rem;
  background:var(--accent-soft);
  color:var(--accent-dark);
  border:1px solid transparent;
  padding:.4rem .85rem;
  border-radius:999px;
  cursor:pointer;
}
.chip.active{
  background:var(--accent-dark);
  color:#fff;
}

/* ---------- editorial content (intro / welkom / wetenschap) ---------- */
.editorial{
  max-width:680px;
  margin:2.5rem auto 0;
  padding:1.6rem 0 0;
  text-align:center;
}
.editorial h2{
  font-size:1.4rem;
  color:var(--accent-dark);
  margin:0 0 1rem;
}
.editorial p{margin:0 auto 1.1rem; color:var(--ink);}

.closing-statement{
  max-width:600px;
  margin:1rem auto 3rem;
  padding:1.2rem 1.6rem;
  background:var(--accent-soft);
  border-radius:12px;
  text-align:center;
  font-size:1.08rem;
  color:var(--accent-dark);
  font-weight:500;
}

/* ---------- tiles ---------- */
.section-title{
  font-size:.8rem;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--accent-dark);
  margin:0 0 1.2rem;
}
.result-count{
  font-size:.85rem;
  color:var(--muted);
  margin-bottom:1rem;
}
.tile-grid{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:1.2rem;
  padding:0 0 3rem;
}
@media (max-width:900px){ .tile-grid{grid-template-columns:repeat(2,1fr);} }
@media (max-width:600px){ .tile-grid{grid-template-columns:1fr;} }

.tile{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  padding:1.3rem 1.3rem 1.4rem;
  display:flex;
  flex-direction:column;
  transition:box-shadow .15s ease, transform .15s ease;
}
.tile:hover{
  box-shadow:0 6px 18px rgba(20,90,85,.08);
  transform:translateY(-2px);
}
.tile .tag{
  font-size:.74rem;
  font-weight:600;
  color:var(--accent-dark);
  background:var(--accent-soft);
  display:inline-block;
  padding:.2rem .6rem;
  border-radius:999px;
  margin-bottom:.7rem;
  width:fit-content;
}
.tile h3{
  margin:0 0 .5rem;
  font-size:1.08rem;
  line-height:1.35;
}
.tile h3 a{color:var(--ink);}
.tile p{
  margin:0 0 1rem;
  color:var(--muted);
  font-size:.92rem;
  flex:1;
}
.tile .readmore{
  font-size:.85rem;
  font-weight:600;
}

.empty-state{
  text-align:center;
  color:var(--muted);
  padding:3rem 1rem;
  font-size:.95rem;
}

/* ---------- CTA submit block ---------- */
.cta{
  background:var(--accent-soft);
  border-radius:16px;
  padding:2.2rem 1.8rem;
  text-align:center;
  margin:1rem 0 3.5rem;
}
.cta h2{
  margin:0 0 .5rem;
  font-size:1.3rem;
  color:var(--accent-dark);
}
.cta p{color:var(--muted); max-width:520px; margin:0 auto 1.2rem;}
.btn{
  display:inline-block;
  background:var(--accent);
  color:#fff;
  padding:.7rem 1.4rem;
  border-radius:999px;
  font-weight:600;
  font-size:.92rem;
}
.btn:hover{background:var(--accent-dark); text-decoration:none;}

/* ---------- post page ---------- */
.post-head{padding:2.6rem 0 1rem;}
.post-head .tag{
  font-size:.78rem;
  font-weight:600;
  color:var(--accent-dark);
  background:var(--accent-soft);
  padding:.25rem .7rem;
  border-radius:999px;
  display:inline-block;
  margin-bottom:.9rem;
}
.post-head h1{font-size:1.9rem; margin:0 0 .6rem; line-height:1.3;}
.post-head .meta{color:var(--muted); font-size:.88rem;}
.post-body{
  max-width:680px;
  padding-bottom:3rem;
  font-size:1.03rem;
}
.post-body p{margin:0 0 1.1rem;}
.post-body h2{
  font-size:1.35rem;
  color:var(--accent-dark);
  margin:1.8rem 0 .9rem;
}
.post-body figure.post-image{
  margin:1.6rem 0;
}
.post-body figure.post-image img{
  width:100%;
  border-radius:12px;
  display:block;
}
.post-body figure.post-image figcaption{
  font-size:.85rem;
  color:var(--muted);
  text-align:center;
  margin-top:.5rem;
}
.back-link{display:inline-block; margin:0 0 1.2rem; font-size:.88rem;}

/* ---------- form page ---------- */
.form-wrap{max-width:560px; padding:2.6rem 0 4rem;}
.form-wrap h1{font-size:1.7rem; margin:0 0 .6rem;}
.form-wrap p.lead{color:var(--muted); margin:0 0 2rem;}
form.topic-form label{
  display:block;
  font-size:.88rem;
  font-weight:600;
  margin:0 0 .35rem;
}
form.topic-form .field{margin-bottom:1.3rem;}
form.topic-form input,
form.topic-form textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:10px;
  padding:.7rem .9rem;
  font-size:.95rem;
  font-family:inherit;
  background:var(--card);
}
form.topic-form textarea{min-height:110px; resize:vertical;}
form.topic-form .hint{font-size:.8rem; color:var(--muted); margin-top:.3rem;}
.form-success{
  display:none;
  background:var(--accent-soft);
  border-radius:12px;
  padding:1.3rem;
  color:var(--accent-dark);
  font-size:.95rem;
}

/* ---------- footer ---------- */
footer.site-footer{
  border-top:1px solid var(--line);
  padding:2rem 0;
  font-size:.82rem;
  color:var(--muted);
}
footer.site-footer .wrap{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:.5rem;
}