/* Nationaal Archief style - matching https://www.nationaalarchief.nl/ */

/* Import RO Serif (or fallback to Georgia for serif headings) */
@import url('https://fonts.googleapis.com/css2?family=Source+Sans+Pro:wght@400;600;700&display=swap');

:root {
  /* NA Color Palette */
  --na-primary: #007bc7;
  --na-red: #d52b1e;
  --na-orange: #e17000;
  --na-green: #39870c;
  --na-cream: #f7f5f3;
  --na-dark-blue: #154273;
  --na-text: #333333;
  --na-text-secondary: #666666;
  
  /* Typography */
  font-family: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.5;
  font-weight: 400;
  color-scheme: light;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

body {
  min-width: 320px;
  min-height: 100vh;
  background-color: var(--na-cream);
  color: var(--na-text);
}

#root {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Serif headings like NA uses */
h1, h2, h3 {
  font-family: Georgia, 'Times New Roman', serif;
  font-weight: 400;
  font-style: italic;
}

/* NA-style links */
a {
  color: var(--na-primary);
  text-decoration: underline;
}

a:hover {
  text-decoration: none;
}

/* NA-style buttons */
.na-button {
  background-color: var(--na-primary);
  color: white;
  border: none;
  padding: 12px 24px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s;
}

.na-button:hover {
  background-color: #005a8e;
}

/* Section card accent borders */
.section-onderzoeken {
  border-top: 4px solid var(--na-primary);
}

.section-beleven {
  border-top: 4px solid var(--na-orange);
}

.section-archiveren {
  border-top: 4px solid var(--na-green);
}

/* ========================================
   Toggle Footer Styles
   ======================================== */

/* Footer toggle button - always visible at bottom center */
.footer-toggle-btn {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 28px;
  background: var(--na-dark-blue);
  border: none;
  border-radius: 8px 8px 0 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  transition: background-color 0.2s, transform 0.3s;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.15);
}

.footer-toggle-btn:hover {
  background: var(--na-primary);
}

.footer-toggle-btn svg {
  width: 20px;
  height: 20px;
  color: white;
  transition: transform 0.3s ease;
}

.footer-toggle-btn.footer-open svg {
  transform: rotate(180deg);
}

/* Hidden footer container */
.toggle-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--na-dark-blue);
  color: #fff;
  transform: translateY(100%);
  transition: transform 0.3s ease-in-out;
  z-index: 999;
  max-height: 60vh;
  overflow-y: auto;
}

.toggle-footer.footer-visible {
  transform: translateY(0);
}

/* Adjust toggle button position when footer is open */
.footer-toggle-btn.footer-open {
  bottom: auto;
  /* Position will be set dynamically based on footer height */
}

/* ========================================
   Collapsible Header Styles
   ======================================== */

/* Small floating logo - appears when header is collapsed */
.header-logo-small {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1001;
  display: block;
  background: transparent;
  border: none;
  padding: 0;
  margin: 0;
  cursor: pointer;
  /* Hidden by default (when header is expanded) */
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease-out, transform 0.2s ease;
}

.header-logo-small.visible {
  opacity: 1;
  pointer-events: auto;
}

.header-logo-small-img {
  width: 40px;
  height: 40px;
  display: block;
  /* White contour/glow effect for visibility on any background */
  filter: drop-shadow(0 0 2px rgba(255, 255, 255, 0.95))
          drop-shadow(0 0 4px rgba(255, 255, 255, 0.8))
          drop-shadow(0 0 6px rgba(255, 255, 255, 0.6));
  transition: filter 0.2s ease, transform 0.2s ease;
}

.header-logo-small:hover {
  transform: scale(1.08);
}

.header-logo-small:hover .header-logo-small-img {
  filter: drop-shadow(0 0 3px rgba(255, 255, 255, 1))
          drop-shadow(0 0 6px rgba(255, 255, 255, 0.9))
          drop-shadow(0 0 8px rgba(255, 255, 255, 0.7));
}

/* Collapsible header container */
.header-collapsible {
  transition: max-height 0.25s cubic-bezier(0.4, 0, 0.2, 1), 
              opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1),
              margin-bottom 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  max-height: 200px; /* Enough height for utility bar + header + nav */
  overflow: hidden;
  opacity: 1;
  /* Flex-shrink so it gives up space when collapsed */
  flex-shrink: 0;
  /* Enable GPU acceleration for smoother animation */
  will-change: max-height, opacity;
}

/* Collapsed state - hide header */
.header-collapsible.header-collapsed {
  max-height: 0;
  opacity: 0;
  pointer-events: none;
  /* Ensure no margin/padding takes up space */
  margin-bottom: 0;
  padding: 0;
}