/* =============================================
   studentenloon.be – Hoofdstijlblad
   Mobile-first, responsive
   ============================================= */

:root {
  --rood: #E74C3C;
  --rood-dark: #C0392B;
  --blauw: #3498DB;
  --blauw-dark: #2176AE;
  --bg: #FFF5F5;
  --wit: #ffffff;
  --tekst: #1A1A2E;
  --tekst-licht: #555566;
  --grijs-licht: #f0f0f5;
  --grijs-rand: #ddd;
  --radius: 10px;
  --schaduw: 0 4px 18px rgba(0,0,0,0.09);
  --schaduw-hover: 0 8px 28px rgba(0,0,0,0.15);
  --overgang: 0.25s ease;
  --max-breedte: 1100px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--tekst);
  line-height: 1.7;
  font-size: 16px;
}

a {
  color: var(--blauw);
  text-decoration: none;
  transition: color var(--overgang);
}
a:hover { color: var(--blauw-dark); text-decoration: underline; }

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

/* ─── CONTAINER ─────────────────────────────── */
.container {
  max-width: var(--max-breedte);
  margin: 0 auto;
  padding: 0 1.2rem;
}

/* ─── NAVBAR ─────────────────────────────────── */
.navbar {
  background: var(--rood);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.18);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.2rem;
  max-width: var(--max-breedte);
  margin: 0 auto;
}

.navbar-logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
}
.navbar-logo span { color: #FFD166; }
.navbar-logo:hover { text-decoration: none; color: #fff; }

.navbar-nav {
  display: none;
  list-style: none;
  gap: 0.25rem;
}

.navbar-nav a {
  color: rgba(255,255,255,0.9);
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  font-size: 0.92rem;
  font-weight: 500;
  transition: background var(--overgang);
}
.navbar-nav a:hover, .navbar-nav a.actief {
  background: rgba(255,255,255,0.2);
  color: #fff;
  text-decoration: none;
}

.hamburger {
  background: none;
  border: 2px solid rgba(255,255,255,0.7);
  border-radius: 6px;
  cursor: pointer;
  padding: 0.35rem 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all var(--overgang);
}

/* Mobiel menu open */
.navbar-nav.open {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0; right: 0;
  background: var(--rood-dark);
  padding: 1rem 1.2rem;
  gap: 0.2rem;
}

@media (min-width: 768px) {
  .navbar-nav { display: flex; }
  .hamburger { display: none; }
}

/* ─── BREADCRUMB ─────────────────────────────── */
.breadcrumb {
  background: rgba(231,76,60,0.07);
  padding: 0.55rem 0;
  font-size: 0.83rem;
}
.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  align-items: center;
}
.breadcrumb li + li::before {
  content: "›";
  margin-right: 0.3rem;
  color: var(--tekst-licht);
}
.breadcrumb a { color: var(--rood); }
.breadcrumb li:last-child { color: var(--tekst-licht); }

/* ─── HERO ───────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--rood) 0%, #c0392b 55%, #2c3e50 100%);
  color: #fff;
  padding: 3.5rem 1.2rem 3rem;
  text-align: center;
}

.hero h1 {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 1rem;
  text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.hero p {
  font-size: 1.1rem;
  opacity: 0.92;
  max-width: 650px;
  margin: 0 auto 2rem;
}

/* ─── CALCULATOR ─────────────────────────────── */
.calculator-sectie {
  background: linear-gradient(135deg, var(--rood) 0%, #c0392b 55%, #2c3e50 100%);
  padding: 0 1.2rem 3.5rem;
}

.calculator {
  background: var(--wit);
  border-radius: 16px;
  padding: 2rem 1.5rem;
  max-width: 650px;
  margin: 0 auto;
  box-shadow: var(--schaduw);
}

.calculator h2 {
  font-size: 1.35rem;
  color: var(--tekst);
  margin-bottom: 1.5rem;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}
.calculator h2::before { content: "🧮"; }

.calc-groep {
  margin-bottom: 1.4rem;
}

.calc-groep label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  color: var(--tekst);
}

.calc-groep .slider-rij {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.calc-groep input[type="range"] {
  flex: 1;
  accent-color: var(--rood);
  height: 6px;
  cursor: pointer;
}

.calc-groep .slider-waarde {
  background: var(--rood);
  color: #fff;
  font-weight: 700;
  padding: 0.3rem 0.7rem;
  border-radius: 6px;
  min-width: 60px;
  text-align: center;
  font-size: 0.95rem;
}

.calc-groep input[type="number"] {
  width: 100%;
  padding: 0.7rem 1rem;
  border: 2px solid var(--grijs-rand);
  border-radius: 8px;
  font-size: 1rem;
  color: var(--tekst);
  transition: border-color var(--overgang);
}
.calc-groep input[type="number"]:focus {
  outline: none;
  border-color: var(--blauw);
}

.calc-resultaat {
  background: var(--grijs-licht);
  border-radius: 10px;
  padding: 1.2rem 1.4rem;
  margin-top: 1rem;
}

.calc-resultaat-rijen {
  display: grid;
  gap: 0.6rem;
}

.calc-rij {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.97rem;
}
.calc-rij.bruto { font-weight: 600; }
.calc-rij.netto {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--rood);
  border-top: 2px solid var(--grijs-rand);
  padding-top: 0.6rem;
  margin-top: 0.4rem;
}
.calc-rij .label { color: var(--tekst-licht); }
.calc-rij .waarde { font-weight: 700; }

.calc-uren-info {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--blauw-dark);
  font-weight: 600;
  text-align: center;
}

.calc-waarschuwing {
  margin-top: 0.8rem;
  background: #FFF3CD;
  border-left: 4px solid #F0A500;
  padding: 0.7rem 1rem;
  border-radius: 6px;
  font-size: 0.9rem;
  color: #7a5c00;
  display: none;
}
.calc-waarschuwing.zichtbaar { display: block; }

/* ─── HOOFD-INHOUD ───────────────────────────── */
main {
  padding: 3rem 0;
}

.sectie {
  padding: 2.5rem 0;
}
.sectie + .sectie {
  border-top: 1px solid var(--grijs-rand);
}

h2 {
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  color: var(--tekst);
  margin-bottom: 1rem;
  font-weight: 800;
}
h2.rood-streep {
  border-left: 5px solid var(--rood);
  padding-left: 0.8rem;
}

h3 {
  font-size: 1.15rem;
  color: var(--tekst);
  margin-bottom: 0.6rem;
  font-weight: 700;
}

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

ul, ol {
  padding-left: 1.6rem;
  margin-bottom: 1rem;
}
li { margin-bottom: 0.4rem; }

/* ─── INFO-BLOKKEN (3 kolommen) ─────────────── */
.info-blokken {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

@media (min-width: 640px) {
  .info-blokken { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .info-blokken { grid-template-columns: repeat(3, 1fr); }
}

.info-blok {
  background: var(--wit);
  border-radius: var(--radius);
  padding: 1.6rem 1.4rem;
  box-shadow: var(--schaduw);
  border-top: 4px solid var(--rood);
  transition: box-shadow var(--overgang), transform var(--overgang);
}
.info-blok:nth-child(2) { border-top-color: var(--blauw); }
.info-blok:nth-child(3) { border-top-color: #2ECC71; }
.info-blok:hover {
  box-shadow: var(--schaduw-hover);
  transform: translateY(-3px);
}

.info-blok .icon {
  font-size: 2.2rem;
  margin-bottom: 0.8rem;
}

.info-blok h3 {
  color: var(--rood);
  font-size: 1.1rem;
}
.info-blok:nth-child(2) h3 { color: var(--blauw); }
.info-blok:nth-child(3) h3 { color: #27AE60; }

/* ─── TABELLEN ───────────────────────────────── */
.tabel-wrapper {
  overflow-x: auto;
  border-radius: var(--radius);
  box-shadow: var(--schaduw);
  margin: 1.5rem 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--wit);
  font-size: 0.95rem;
}

th {
  background: var(--rood);
  color: #fff;
  font-weight: 700;
  padding: 0.85rem 1rem;
  text-align: left;
  white-space: nowrap;
}

td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--grijs-rand);
  vertical-align: middle;
}

tr:last-child td { border-bottom: none; }
tr:nth-child(even) td { background: var(--grijs-licht); }
tr:hover td { background: rgba(52, 152, 219, 0.07); }

.badge {
  display: inline-block;
  background: var(--rood);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: 20px;
  margin-left: 0.4rem;
}
.badge.blauw { background: var(--blauw); }
.badge.groen { background: #27AE60; }

/* ─── FAQ ACCORDION ──────────────────────────── */
.faq-lijst {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

details.faq-item {
  background: var(--wit);
  border-radius: var(--radius);
  box-shadow: var(--schaduw);
  overflow: hidden;
  border: 1px solid var(--grijs-rand);
}

details.faq-item summary {
  padding: 1.1rem 1.4rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1rem;
  color: var(--tekst);
  user-select: none;
  transition: background var(--overgang);
}
details.faq-item summary::-webkit-details-marker { display: none; }
details.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--rood);
  font-weight: 300;
  line-height: 1;
  transition: transform var(--overgang);
  flex-shrink: 0;
  margin-left: 1rem;
}
details.faq-item[open] summary::after {
  transform: rotate(45deg);
}
details.faq-item summary:hover {
  background: var(--grijs-licht);
}
details.faq-item[open] summary {
  border-bottom: 1px solid var(--grijs-rand);
  background: rgba(231,76,60,0.04);
}

.faq-antwoord {
  padding: 1.1rem 1.4rem;
  color: var(--tekst-licht);
  font-size: 0.97rem;
  line-height: 1.75;
}
.faq-antwoord p:last-child { margin-bottom: 0; }

/* ─── LINKTEGELS ANDERE SITES ────────────────── */
.linktegels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

@media (min-width: 500px) {
  .linktegels { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .linktegels { grid-template-columns: repeat(3, 1fr); }
}

.linktegel {
  background: var(--wit);
  border-radius: var(--radius);
  padding: 1.3rem 1.2rem;
  box-shadow: var(--schaduw);
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  text-decoration: none;
  color: var(--tekst);
  border: 1px solid transparent;
  transition: box-shadow var(--overgang), transform var(--overgang), border-color var(--overgang);
}
.linktegel:hover {
  box-shadow: var(--schaduw-hover);
  transform: translateY(-3px);
  border-color: var(--blauw);
  text-decoration: none;
  color: var(--tekst);
}
.linktegel .tegel-icon {
  font-size: 2rem;
  flex-shrink: 0;
}
.linktegel .tegel-info strong {
  display: block;
  font-size: 0.97rem;
  font-weight: 700;
  color: var(--blauw);
  margin-bottom: 0.2rem;
}
.linktegel .tegel-info span {
  font-size: 0.87rem;
  color: var(--tekst-licht);
}

/* ─── CTA KNOPPEN ────────────────────────────── */
.cta-rij {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.97rem;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--overgang);
  border: 2px solid transparent;
}

.btn-rood {
  background: var(--rood);
  color: #fff;
  border-color: var(--rood);
}
.btn-rood:hover {
  background: var(--rood-dark);
  border-color: var(--rood-dark);
  color: #fff;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(231,76,60,0.35);
}

.btn-blauw {
  background: var(--blauw);
  color: #fff;
  border-color: var(--blauw);
}
.btn-blauw:hover {
  background: var(--blauw-dark);
  border-color: var(--blauw-dark);
  color: #fff;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(52,152,219,0.35);
}

.btn-omlijnd {
  background: transparent;
  color: var(--rood);
  border-color: var(--rood);
}
.btn-omlijnd:hover {
  background: var(--rood);
  color: #fff;
  text-decoration: none;
  transform: translateY(-2px);
}

/* ─── TIP-BLOK ───────────────────────────────── */
.tip-blok, .waarschuwing-blok, .info-blok-uitleg {
  border-radius: 10px;
  padding: 1.2rem 1.4rem;
  margin: 1.5rem 0;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.tip-blok .icoon, .waarschuwing-blok .icoon, .info-blok-uitleg .icoon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 0.1rem;
}
.tip-blok {
  background: rgba(52,152,219,0.1);
  border-left: 4px solid var(--blauw);
}
.waarschuwing-blok {
  background: #fff8e6;
  border-left: 4px solid #F0A500;
}
.info-blok-uitleg {
  background: rgba(231,76,60,0.07);
  border-left: 4px solid var(--rood);
}

/* ─── HOOFD SECTIE PAGINA ─────────────────────── */
.pagina-header {
  background: linear-gradient(135deg, var(--rood) 0%, #c0392b 60%, #2c3e50 100%);
  color: #fff;
  padding: 3rem 1.2rem 2.5rem;
}
.pagina-header h1 {
  font-size: clamp(1.5rem, 4vw, 2.3rem);
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 0.8rem;
  text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.pagina-header p {
  font-size: 1.05rem;
  opacity: 0.9;
  max-width: 620px;
}

/* ─── OVERZICHT KADER ─────────────────────────── */
.kader {
  background: var(--wit);
  border-radius: var(--radius);
  box-shadow: var(--schaduw);
  padding: 1.8rem;
  margin: 1.5rem 0;
}
.kader h3 {
  color: var(--rood);
  margin-bottom: 0.8rem;
  border-bottom: 2px solid var(--grijs-rand);
  padding-bottom: 0.5rem;
}

/* ─── HIGHLIGHT GETAL ─────────────────────────── */
.getal-blok {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  margin: 1.5rem 0;
}
.getal-kaart {
  background: var(--wit);
  border-radius: var(--radius);
  box-shadow: var(--schaduw);
  padding: 1.4rem 1.6rem;
  text-align: center;
  flex: 1 1 160px;
  border-bottom: 4px solid var(--rood);
}
.getal-kaart:nth-child(2) { border-bottom-color: var(--blauw); }
.getal-kaart:nth-child(3) { border-bottom-color: #27AE60; }
.getal-kaart .getal {
  font-size: 1.9rem;
  font-weight: 900;
  color: var(--rood);
  display: block;
}
.getal-kaart:nth-child(2) .getal { color: var(--blauw); }
.getal-kaart:nth-child(3) .getal { color: #27AE60; }
.getal-kaart .omschrijving {
  font-size: 0.88rem;
  color: var(--tekst-licht);
  margin-top: 0.3rem;
}

/* ─── VOORTGANGSBALK ──────────────────────────── */
.voortgang-wrapper {
  background: var(--grijs-licht);
  border-radius: 20px;
  height: 14px;
  overflow: hidden;
  margin: 0.5rem 0 0.3rem;
}
.voortgang-balk {
  height: 100%;
  background: linear-gradient(90deg, var(--blauw), var(--rood));
  border-radius: 20px;
  transition: width 0.4s ease;
}

/* ─── FOOTER ──────────────────────────────────── */
footer {
  background: var(--tekst);
  color: rgba(255,255,255,0.8);
  padding: 3rem 1.2rem 1.5rem;
  margin-top: 3rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  max-width: var(--max-breedte);
  margin: 0 auto 2rem;
}

@media (min-width: 640px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}

.footer-logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.7rem;
}
.footer-logo span { color: #FFD166; }

footer p { font-size: 0.92rem; margin-bottom: 0.5rem; }

footer h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

footer ul { list-style: none; padding: 0; }
footer ul li { margin-bottom: 0.4rem; }
footer ul a {
  color: rgba(255,255,255,0.75);
  font-size: 0.92rem;
  transition: color var(--overgang);
}
footer ul a:hover {
  color: #fff;
  text-decoration: none;
}

.footer-bottom {
  max-width: var(--max-breedte);
  margin: 0 auto;
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

.footer-bottom a { color: rgba(255,255,255,0.65); }
.footer-bottom a:hover { color: #fff; }

/* ─── UTILITY ─────────────────────────────────── */
.tekst-centrum { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.vet { font-weight: 700; }

.niet-gevonden {
  text-align: center;
  padding: 5rem 1.2rem;
}
.niet-gevonden .groot-getal {
  font-size: 7rem;
  font-weight: 900;
  color: var(--rood);
  opacity: 0.2;
  line-height: 1;
}
.niet-gevonden h1 {
  font-size: 2rem;
  margin: 1rem 0 0.5rem;
}

/* ─── PRINT ───────────────────────────────────── */
@media print {
  .navbar, .hamburger, .calculator-sectie, footer { display: none; }
  body { background: #fff; color: #000; }
}