:root{
  --red:#b4232f;
  --red-dark:#8f1721;
  --red-soft:#fff1f2;
  --red-border:#f4c9ce;
  --text:#23262b;
  --muted:#6b7280;
  --bg:#f7f7f8;
  --surface:#ffffff;
  --border:#e7e7ea;
  --success:#247a4b;
  --success-soft:#edf8f1;
  --warning:#9a6700;
  --warning-soft:#fff8df;
  --danger:#b4232f;
  --danger-soft:#fff1f2;
  --shadow:0 8px 28px rgba(24,24,27,.07);
  --shadow-hover:0 12px 32px rgba(24,24,27,.10);
  --radius:16px;
}

*{box-sizing:border-box}

html{scroll-behavior:smooth}

body{
  margin:0;
  font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}

.container{
  width:min(1080px,calc(100% - 40px));
  margin:0 auto;
}

/* Navigatie */
.topbar{
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--border);
  box-shadow:0 1px 10px rgba(24,24,27,.03);
  position:sticky;
  top:0;
  z-index:20;
  backdrop-filter:blur(12px);
}

.nav{
  min-height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}

.brand{
  color:var(--text);
  text-decoration:none;
  font-size:21px;
  font-weight:800;
  letter-spacing:-.4px;
  display:flex;
  align-items:center;
  gap:10px;
}

.brand::before{
  content:"";
  width:11px;
  height:30px;
  border-radius:999px;
  background:var(--red);
  display:block;
}

.links{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}

.links a{
  color:#52525b;
  text-decoration:none;
  font-weight:650;
  font-size:14px;
  padding:9px 12px;
  border-radius:10px;
  transition:.18s ease;
}

.links a:hover{
  color:var(--red);
  background:var(--red-soft);
}

main.container{padding:34px 0 54px}

/* Kaarten */
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px;
  margin:0 0 20px;
  box-shadow:var(--shadow);
}

.card:first-of-type{
  border-top:4px solid var(--red);
}

h1,h2,h3{
  color:#202124;
  line-height:1.2;
  letter-spacing:-.35px;
}

h1{
  margin:0 0 8px;
  font-size:clamp(28px,4vw,38px);
  font-weight:800;
}

h2{
  margin:0 0 16px;
  font-size:21px;
  font-weight:750;
}

p{margin:0 0 14px}

.muted{color:var(--muted)}

/* Beschikbare examenuren */
.slot{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  padding:18px 20px;
  margin:10px 0;
  background:#fff;
  border:1px solid var(--border);
  border-radius:14px;
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}

.slot:hover{
  border-color:var(--red-border);
  box-shadow:0 8px 22px rgba(24,24,27,.06);
  transform:translateY(-1px);
}

.time{
  font-size:21px;
  font-weight:800;
  color:#27272a;
  letter-spacing:-.25px;
}

/* Knoppen */
.btn,
button{
  appearance:none;
  border:0;
  background:var(--red);
  color:#fff;
  min-height:42px;
  padding:10px 16px;
  border-radius:10px;
  text-decoration:none;
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font:inherit;
  font-size:14px;
  font-weight:750;
  line-height:1.2;
  box-shadow:0 3px 8px rgba(180,35,47,.16);
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}

.btn:hover,
button:hover{
  background:var(--red-dark);
  transform:translateY(-1px);
  box-shadow:0 6px 14px rgba(180,35,47,.20);
}

.btn:active,
button:active{transform:translateY(0)}

.secondary{
  background:#f3f4f6!important;
  color:#45474d!important;
  border:1px solid #dedfe3!important;
  box-shadow:none!important;
}

.secondary:hover{background:#e9eaed!important}

.success{
  background:var(--success)!important;
  color:#fff!important;
}

.success:hover{background:#1e683f!important}

.danger{
  background:#fff!important;
  color:var(--danger)!important;
  border:1px solid var(--red-border)!important;
  box-shadow:none!important;
}

.danger:hover{
  background:var(--danger-soft)!important;
  border-color:#e8aab2!important;
}

/* Formulieren */
.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(210px,1fr));
  gap:16px;
  align-items:end;
}

label{
  display:block;
  font-size:14px;
  font-weight:750;
  color:#3f3f46;
  margin:0 0 7px;
}

input:not([type="hidden"]),
select,
textarea{
  width:100%;
  min-height:44px;
  padding:10px 12px;
  margin:0 0 14px;
  border:1px solid #d9dadd;
  border-radius:10px;
  background:#fff;
  color:var(--text);
  font:inherit;
  outline:none;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}

input:not([type="hidden"]):hover,
select:hover,
textarea:hover{border-color:#c9cbd0}

input:not([type="hidden"]):focus,
select:focus,
textarea:focus{
  border-color:var(--red);
  box-shadow:0 0 0 4px rgba(180,35,47,.10);
}

/* Meldingen */
.alert{
  padding:14px 16px;
  border-radius:12px;
  margin:0 0 20px;
  border:1px solid transparent;
  font-weight:600;
}

.alert.success{
  background:var(--success-soft)!important;
  color:#1f633f!important;
  border-color:#cfe9d9;
}

.alert.error{
  background:var(--danger-soft)!important;
  color:#8d1b26!important;
  border-color:var(--red-border);
}

.alert.info{
  background:#f5f5f5!important;
  color:#52525b!important;
  border-color:#e2e2e5;
}

/* Tabellen */
table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  overflow:hidden;
  border:1px solid var(--border);
  border-radius:12px;
  background:#fff;
}

th,
td{
  padding:13px 14px;
  text-align:left;
  border-bottom:1px solid var(--border);
  vertical-align:middle;
}

th{
  background:#fafafa;
  color:#52525b;
  font-size:12px;
  font-weight:800;
  text-transform:uppercase;
  letter-spacing:.55px;
}

tr:last-child td{border-bottom:0}

tbody tr:hover td{background:#fdfdfd}

.inline{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}

.inline form{margin:0}

/* Status badges */
.badge{
  display:inline-flex;
  align-items:center;
  padding:5px 9px;
  border-radius:999px;
  font-size:12px;
  font-weight:800;
  line-height:1.2;
}

.open{
  background:var(--success-soft);
  color:#216a43;
  border:1px solid #cde7d7;
}

.full{
  background:var(--danger-soft);
  color:#9c2330;
  border:1px solid var(--red-border);
}

.hidden{
  background:var(--warning-soft);
  color:var(--warning);
  border:1px solid #f0df9a;
}

/* Kleine verfijningen */
a{color:var(--red)}
::selection{background:#f7cbd0;color:#6e1019}

@media(max-width:760px){
  .container{width:min(100% - 24px,1080px)}
  .nav{
    min-height:auto;
    padding:14px 0;
    align-items:flex-start;
    flex-direction:column;
    gap:10px;
  }
  .links{width:100%}
  .links a{padding:7px 9px}
  main.container{padding-top:22px}
  .card{padding:20px;border-radius:14px}
  .slot{
    flex-direction:column;
    align-items:stretch;
    padding:16px;
  }
  .slot .btn{width:100%}
  .grid{grid-template-columns:1fr}
  table{font-size:13px}
  th,td{padding:11px 10px}
}

@media(max-width:480px){
  h1{font-size:28px}
  .brand{font-size:19px}
  .inline{align-items:stretch}
  .inline .btn,
  .inline button{width:100%}
  .inline form{width:100%}
}