/* --- Google Font Import --- */
@import url('https://fonts.googleapis.com/css2?family=Spectral:wght@400;700&family=Inter:wght@400;500;700&display=swap');

/* --- CSS variabelen (Root) --- */
:root {
  --primary-color: #0A2342; /* Diep institutioneel blauw */
  --secondary-color: #5F7388; /* Gedempt leiblauw */
  --accent-color: #A3B1C0; /* Zacht neutraal blauw */
  --background-color: #F8F9FA; /* Licht neutraal grijs */
  --text-color: #212529; /* Donker neutraal grijs */
  --text-muted: #6c757d;
  --white-color: #FFFFFF;
  --border-color: #dee2e6;

  --font-primary: 'Inter', sans-serif;
  --font-secondary: 'Spectral', serif;

  --container-width: 1280px;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;
  --spacing-xxl: 6rem;

  --header-height: 80px;
  --border-radius: 8px;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* --- Algemene Stijlen & Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  color: var(--text-color);
  background-color: var(--background-color);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Typografie & Koppen --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1.2;
}

h1 {
  font-size: clamp(3rem, 8vw, 6rem);
}

h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: var(--spacing-lg);
}

h3 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin-bottom: var(--spacing-md);
}

p {
  margin-bottom: var(--spacing-md);
  max-width: 75ch;
}

a {
  color: var(--secondary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover, a:focus {
  color: var(--primary-color);
  text-decoration: underline;
}

/* --- Layout & Container --- */
.container {
  width: 90%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
}

.main-content {
    padding-top: var(--header-height);
}

section {
  padding: var(--spacing-xxl) 0;
}

.section-bg {
    background-color: var(--white-color);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

/* --- Header & Navigatie --- */
.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-family: var(--font-secondary);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}

.nav-links {
  display: none;
  list-style: none;
}

.nav-links li {
  margin-left: var(--spacing-lg);
}

.nav-links a {
  font-weight: 500;
  font-size: 1rem;
  color: var(--text-color);
  text-decoration: none;
  position: relative;
  padding: var(--spacing-xs) 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
    font-weight: 700;
    color: var(--primary-color);
}

.mobile-menu-toggle {
  display: block;
  cursor: pointer;
  background: none;
  border: none;
  z-index: 1001;
}

.mobile-menu-toggle .bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  background-color: var(--primary-color);
  transition: all 0.3s ease-in-out;
}

/* --- Hero Sectie (Editorial Style) --- */
.hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  position: relative;
  background-color: var(--white-color);
  overflow: hidden;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero h1 {
  max-width: 12ch;
  margin-bottom: var(--spacing-lg);
}

.hero p.subtitle {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  max-width: 50ch;
  color: var(--text-muted);
}

.hero-image-accent {
  position: absolute;
  bottom: 10%;
  right: 5%;
  width: 25%;
  max-width: 300px;
  height: auto;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: var(--border-radius);
  opacity: 0.8;
  filter: grayscale(80%) sepia(10%) contrast(0.9) brightness(0.95);
  box-shadow: var(--shadow);
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background-color: var(--primary-color);
    opacity: 0.8;
    z-index: 1;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    filter: grayscale(1);
    opacity: 0.2;
}

.hero.hero-internal {
    min-height: 40vh;
    background-color: var(--primary-color);
}
.hero.hero-internal h1, .hero.hero-internal .breadcrumb a {
    color: var(--white-color);
}
.hero.hero-internal .breadcrumb span {
    color: var(--accent-color);
}

/* --- Breadcrumbs --- */
.breadcrumb {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
}
.breadcrumb a {
    color: var(--text-muted);
    font-weight: 500;
}
.breadcrumb a:hover {
    color: var(--primary-color);
}
.breadcrumb span {
    margin: 0 0.5rem;
    color: var(--accent-color);
}

/* --- Knoppen --- */
.btn {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  font-family: var(--font-primary);
  font-weight: 700;
  font-size: 1rem;
  text-align: center;
  text-decoration: none;
  border-radius: var(--border-radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary {
  background-color: var(--primary-color);
  color: var(--white-color);
}

.btn-primary:hover {
  background-color: var(--secondary-color);
  color: var(--white-color);
  text-decoration: none;
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-secondary:hover {
  background-color: var(--primary-color);
  color: var(--white-color);
  text-decoration: none;
}

/* --- Artikelen & Redactionele Stijl --- */
.article-content {
    max-width: 800px;
    margin: 0 auto;
}

.article-content h2, .article-content h3 {
    margin-top: var(--spacing-xl);
}

.article-content ul, .article-content ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.pull-quote {
    font-family: var(--font-secondary);
    font-size: 1.8rem;
    line-height: 1.4;
    color: var(--secondary-color);
    border-left: 4px solid var(--accent-color);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    font-style: italic;
}

/* --- Home Pagina: Masonry Grid --- */
.masonry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.masonry-item {
    background-color: var(--white-color);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.masonry-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.masonry-item h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.masonry-item p {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
}

.masonry-item a {
    font-weight: 700;
}

/* --- Structureel Diagram --- */
.structural-diagram {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    background: var(--white-color);
}

.diagram-level {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px dashed var(--accent-color);
}
.diagram-level:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.diagram-level h4 {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    text-align: center;
}

.diagram-boxes {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-sm);
}

.diagram-box {
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    font-size: 0.9rem;
    text-align: center;
}

/* --- Contact Pagina & Formulier --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xxl);
}
@media (min-width: 992px) {
    .contact-grid {
        grid-template-columns: 2fr 1fr;
    }
}
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  font-family: var(--font-primary);
  font-size: 1rem;
  background-color: var(--white-color);
  transition: border-color 0.3s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
}

.contact-info-block {
    background: var(--white-color);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}
.contact-info-block h3 {
    margin-top: 0;
}
.contact-info-block p {
    margin-bottom: var(--spacing-sm);
}
.contact-info-block svg {
    width: 20px;
    height: 20px;
    margin-right: var(--spacing-sm);
    color: var(--secondary-color);
    vertical-align: middle;
}
.form-disclaimer {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: var(--spacing-md);
    font-style: italic;
}

/* --- Google Map Container --- */
.map-container {
  width: 100%;
  height: 450px;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin: var(--spacing-xl) 0;
}
.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}
@media (max-width: 768px) {
  .map-container {
    height: 350px;
  }
}

/* --- Footer --- */
.main-footer {
  background-color: var(--primary-color);
  color: var(--background-color);
  padding-top: var(--spacing-xl);
}

.footer-content {
    text-align: center;
}

.footer-contact-info p {
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
}
.footer-contact-info a {
    color: var(--background-color);
}
.footer-contact-info a:hover {
    color: var(--accent-color);
}

.disclaimer-section {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--background-color);
  padding: var(--spacing-md) var(--spacing-lg);
  margin: var(--spacing-xl) auto 0 auto;
  border-radius: var(--border-radius);
  width: 90%;
  max-width: var(--container-width);
  text-align: left;
  font-size: 0.85rem;
  line-height: 1.6;
  border: 1px solid var(--secondary-color);
}
.disclaimer-section p {
    margin-bottom: 0;
}
.disclaimer-section strong {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--accent-color);
}

.footer-bottom {
  border-top: 1px solid var(--secondary-color);
  margin-top: var(--spacing-xl);
  padding: var(--spacing-md) 0;
  text-align: center;
}

.footer-nav {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}
.footer-nav a {
    color: var(--accent-color);
    font-size: 0.9rem;
}
.footer-nav a:hover {
    color: var(--white-color);
}

.copyright {
  font-size: 0.85rem;
  color: var(--accent-color);
}

/* --- Cookie Banner --- */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(10, 35, 66, 0.95);
  color: var(--white-color);
  padding: var(--spacing-md);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  backdrop-filter: blur(5px);
  border-top: 1px solid var(--secondary-color);
}

.cookie-text {
  flex-grow: 1;
  font-size: 0.9rem;
}

.cookie-buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex-shrink: 0;
}

.cookie-buttons button {
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-weight: 700;
  transition: background-color 0.3s ease;
}

#accept-cookies {
  background-color: var(--accent-color);
  color: var(--primary-color);
}
#accept-cookies:hover {
  background-color: var(--white-color);
}

#decline-cookies {
  background-color: transparent;
  color: var(--accent-color);
  border: 2px solid var(--accent-color);
}
#decline-cookies:hover {
    background-color: var(--accent-color);
    color: var(--primary-color);
}

/* --- Thank You Pagina --- */
.thank-you-section {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-lg);
}
.thank-you-icon {
  width: 80px;
  height: 80px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 30px;
}
.thank-you-icon svg {
  width: 40px;
  height: 40px;
  color: white;
}
.thank-you-section h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 20px;
}
.thank-you-section p {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 30px;
}

/* --- Responsiviteit --- */
@media (min-width: 992px) {
  .nav-links {
    display: flex;
  }
  .mobile-menu-toggle {
    display: none;
  }
}
@media (max-width: 991px) {
  .mobile-nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 60%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--primary-color);
    padding-top: var(--header-height);
    transition: right 0.4s ease-in-out;
    box-shadow: -5px 0 15px rgba(0,0,0,0.1);
  }
  .mobile-nav-menu.active {
    right: 0;
  }
  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--spacing-xl);
  }
  .nav-links li {
    margin: 0;
    width: 100%;
  }
  .nav-links a {
    color: var(--white-color);
    display: block;
    padding: var(--spacing-md) 0;
    font-size: 1.2rem;
  }
  .nav-links a::after {
    background-color: var(--accent-color);
  }
  
  .mobile-menu-toggle.active .bar:nth-child(2) {
    opacity: 0;
  }
  .mobile-menu-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  .mobile-menu-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
}
@media (max-width: 768px) {
  h1 { font-size: clamp(2.5rem, 8vw, 6rem); }
  section { padding: var(--spacing-xl) 0; }
  .hero { min-height: 60vh; }
  .hero-image-accent { display: none; }
}

@media (max-width: 480px) {
  #cookie-banner {
    flex-direction: column;
    text-align: center;
  }
}

/* Institutional Image Filter*/
.institutional-image {
  filter: grayscale(80%) sepia(10%) contrast(0.9) brightness(0.95);
  border-radius: var(--border-radius);
  display: block;
  max-width: 100%;
  height: auto;
}