/* ---
   NATIONAAL ANALYSEPORTAAL VOOR PUBLIEKE SYSTEMEN
   STIJLBLAD
   --- */

/* 1. CSS Variabelen & Basisinstellingen
   ------------------------------------------------- */
:root {
  /* Kleurenpalet */
  --color-primary: #0a2342; /* Diep institutioneel blauw */
  --color-secondary: #5a7590; /* Gedempt leiblauw */
  --color-accent: #8da4be; /* Zacht neutraal blauw */
  --color-background: #f4f6f8; /* Licht neutraal grijs */
  --color-text: #212931; /* Donker neutraal grijs */
  --color-text-muted: #5a7590;
  --color-border: #dfe3e8;
  --color-white: #ffffff;
  --color-overlay: rgba(10, 35, 66, 0.75); /* Overlay voor Hero */

  /* Typografie */
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  --font-size-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem); /* Fluid 16px -> 18px */
  --line-height-base: 1.7;

  /* Spatiëring */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --spacing-xxl: 6rem;
  
  /* Layout */
  --container-max-width: 800px;
  --header-height: 80px;
  --border-radius: 4px;
}

/* 2. Reset & Globale Stijlen
   ------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: var(--font-size-base);
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

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

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: var(--spacing-sm);
  color: var(--color-primary);
}

h1 { font-size: clamp(2.5rem, 1.5rem + 5vw, 4rem); }
h2 { font-size: clamp(2rem, 1.5rem + 2.5vw, 2.75rem); }
h3 { font-size: clamp(1.5rem, 1.25rem + 1.25vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--color-secondary);
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-underline-offset: 4px;
  transition: color 0.3s ease, text-decoration-color 0.3s ease;
}

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

ul, ol {
  padding-left: 1.5rem;
  margin-bottom: var(--spacing-md);
}

li {
  margin-bottom: var(--spacing-xs);
}

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

/* Algemene beeldstijl */
.content-image, .card img {
  filter: saturate(0) sepia(0.2) brightness(0.95) contrast(1.1);
  border-radius: var(--border-radius);
}

/* 3. Hoofd Layout Componenten
   ------------------------------------------------- */
.main-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 var(--spacing-lg);
}

.header-container {
  width: 100%;
  max-width: 1400px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  flex-shrink: 0;
}

.main-nav {
  display: none; /* Verborgen op mobiel */
}

.nav-links {
  list-style: none;
  display: flex;
  gap: var(--spacing-md);
  padding: 0;
  margin: 0;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--color-text-muted);
  padding: var(--spacing-xs) 0;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-primary);
}

.nav-links a.active::after,
.nav-links a:hover::after {
  transform: scaleX(1);
}

.mobile-menu-toggle {
  display: block;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  z-index: 1001;
}

.mobile-menu-toggle svg {
  width: 28px;
  height: 28px;
  color: var(--color-primary);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--color-background);
  z-index: 999;
  transform: translateY(-100%);
  transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.mobile-nav.open {
  transform: translateY(0);
}

.mobile-nav .nav-links {
  flex-direction: column;
  text-align: center;
  gap: var(--spacing-lg);
}

.mobile-nav .nav-links a {
  font-size: 1.5rem;
}

.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-white);
  padding: var(--spacing-xxl) var(--spacing-lg);
  min-height: 50vh;
  background-color: var(--color-primary);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container-max-width);
}

.hero h1 {
  color: var(--color-white);
  font-size: clamp(2rem, 1.5rem + 2.5vw, 3rem);
  line-height: 1.2;
}

.main-content {
  padding: var(--spacing-xxl) var(--spacing-lg);
}

.content-wrapper {
  max-width: var(--container-max-width);
  margin: 0 auto;
}

.content-wrapper > *:last-child {
  margin-bottom: 0;
}

.main-footer {
  background-color: var(--color-primary);
  color: var(--color-background);
  padding: var(--spacing-xl) var(--spacing-lg);
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-column h3 {
  color: var(--color-white);
  font-size: 1.1rem;
  margin-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: var(--spacing-sm);
}

.footer-column ul {
  list-style: none;
  padding: 0;
}

.footer-column ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-column a {
  color: var(--color-accent);
  text-decoration: none;
}

.footer-column a:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.contact-info p {
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: start;
}

.contact-info svg {
  width: 18px;
  height: 18px;
  margin-right: var(--spacing-sm);
  margin-top: 5px;
  flex-shrink: 0;
  color: var(--color-accent);
}

.footer-bottom {
  border-top: 1px solid var(--color-secondary);
  padding-top: var(--spacing-lg);
  text-align: center;
  font-size: 0.9rem;
  color: var(--color-accent);
}

/* 4. Specifieke Pagina Componenten
   ------------------------------------------------- */
.breadcrumbs {
  background-color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumbs-container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  font-size: 0.85rem;
}

.breadcrumbs a, .breadcrumbs span {
  color: var(--color-text-muted);
  text-decoration: none;
}

.breadcrumbs a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.breadcrumbs span[aria-current="page"] {
  font-weight: 500;
  color: var(--color-text);
}

.article-section {
  margin-bottom: var(--spacing-xl);
}

.article-section h2 {
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.article-links ul {
  list-style: none;
  padding: 0;
}

.article-links ul li {
  margin-bottom: var(--spacing-md);
}

.article-links ul li a {
  font-size: 1.2rem;
  font-weight: 500;
}

.diagram-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: #e9ecef;
  border: 2px dashed var(--color-border);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--color-text-muted);
  padding: var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

/* Contact Pagina */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xxl);
}

.form-field {
  margin-bottom: var(--spacing-md);
}

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

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(141, 164, 190, 0.3);
}

.contact-form textarea {
  min-height: 150px;
  resize: vertical;
}

.form-disclaimer {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-sm);
  background-color: var(--color-background);
  padding: var(--spacing-sm);
  border-radius: var(--border-radius);
}

.btn {
  display: inline-block;
  padding: 0.9rem 1.8rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

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

.btn-primary:hover {
  background-color: #081e36;
  color: var(--color-white);
  transform: translateY(-2px);
}

.map-container {
  width: 100%;
  height: 450px;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  margin-top: var(--spacing-xl);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* 5. Cookie & Disclaimer
   ------------------------------------------------- */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-md) var(--spacing-lg);
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.05);
}

.cookie-text {
  font-size: 0.9rem;
  color: var(--color-text);
  flex-grow: 1;
}

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

.cookie-btn {
  font-size: 0.85rem;
  padding: 0.6rem 1.2rem;
}

.btn-decline {
  background: none;
  border: 1px solid var(--color-secondary);
  color: var(--color-secondary);
}

.btn-decline:hover {
  background-color: var(--color-background);
}

.disclaimer-section {
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  padding: var(--spacing-md) var(--spacing-lg);
  margin: var(--spacing-xl) 0 0 0;
  border-radius: var(--border-radius);
  text-align: left;
  font-size: 0.85rem;
  line-height: 1.6;
}

.disclaimer-section strong {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

/* Thank You Pagina */
.thank-you-section {
  text-align: center;
  padding: var(--spacing-xxl) var(--spacing-lg);
}

.thank-you-icon {
  width: 80px;
  height: 80px;
  background: var(--color-primary);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

.thank-you-icon svg {
  width: 40px;
  height: 40px;
  color: var(--color-white);
}

.thank-you-section h1 {
  font-size: clamp(2rem, 5vw, 3rem);
}

.thank-you-section p {
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto var(--spacing-lg) auto;
}

.btn-home {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 0.9rem 1.8rem;
  border-radius: var(--border-radius);
  text-decoration: none;
  font-weight: 600;
  transition: background-color 0.3s ease;
}

.btn-home:hover {
  background-color: #081e36;
  color: var(--color-white);
}


/* 6. Media Queries
   ------------------------------------------------- */
@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .main-nav {
    display: block;
  }
  .mobile-menu-toggle {
    display: none;
  }
}