/* Tijmen op Stoom — basisstijlen voor alle pagina's.
   Pagina-specifieke CSS staat in een <style>-blok in de pagina zelf. */

/* ============================================================
   DESIGN TOKENS — Warm Journey palette
   ============================================================ */
:root {
  /* Backgrounds */
  --bg:           #F7F4EF;
  --surface:      #FFFFFF;
  --surface-warm: #F2EDE6;

  /* Text */
  --text:         #1C1A17;
  --text-muted:   #736C64;   /* 4,72:1 op --bg — was #7A726A met 4,31:1 */
  /* Alleen voor decoratie (placeholder-iconen). Op deze lichte ondergrond haalt een
     derde, lichtere teksttint de 4,5:1 niet; gebruik --text-muted voor echte tekst. */
  --text-subtle:  #A89E95;

  /* Accent: roest/koper — stoomtrein */
  --rust:         #C04E1A;
  --rust-dark:    #9A3C12;
  --rust-light:   #F5EAE3;
  --rust-mid:     #D4692E;

  /* Secondary: bosgroen — landschap */
  --forest:       #3A6B4E;
  --forest-light: #EAF2EE;

  /* Neutral borders & dividers */
  --border:       #E2D9CE;
  --border-light: #EDE8E0;

  /* Layout */
  --max-width:    1080px;
  --radius:       10px;
  --radius-lg:    18px;

  /* Transitions */
  --t:            0.2s ease;
}

/* ============================================================
   RESET
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  /* De header plakt op 68px; zonder deze marge belandt een ankerdoel eronder. */
  scroll-padding-top: 84px;
}

body {
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  line-height: 1.75;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

h1, h2, h3, h4, h5,
.heading {
  font-family: 'Fira Sans', sans-serif;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ============================================================
   TRACK DIVIDER — minimaal, sierlijk
   ============================================================ */
.track-line {
  height: 1px;
  background: var(--border);
  position: relative;
}
.track-line::after {
  content: '';
  position: absolute;
  top: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 5px;
  background: var(--rust);
  border-radius: 3px;
}

/* ============================================================
   STEAM ANIMATION — subtiel
   ============================================================ */
@keyframes steam {
  0%   { opacity: 0.5; transform: translateY(0) scale(0.9); }
  70%  { opacity: 0.2; transform: translateY(-28px) scale(1.5); }
  100% { opacity: 0;   transform: translateY(-48px) scale(2.2); }
}

.steam-wrap {
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  pointer-events: none;
}
.steam-puff {
  width: 12px;
  height: 12px;
  background: rgba(255,255,255,0.55);
  border-radius: 50%;
  filter: blur(3px);
  animation: steam 2.4s ease-out infinite;
}
.steam-puff:nth-child(2) { animation-delay: 0.7s; width: 9px; height: 9px; }
.steam-puff:nth-child(3) { animation-delay: 1.4s; width: 7px; height: 7px; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}
.site-logo {
  height: 44px;
  width: auto;
  transition: transform var(--t);
}
.site-logo:hover { transform: scale(1.04); }

/* Nav */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0.125rem;
}

.site-nav a {
  font-family: 'Fira Sans', sans-serif;
  font-weight: 800;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius);
  transition: color var(--t), background var(--t);
}
.site-nav a:hover {
  color: var(--text);
  background: var(--surface-warm);
}
.site-nav a.active {
  color: var(--rust);
  background: var(--rust-light);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  width: 36px;
  height: 36px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.25s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   MAIN
   ============================================================ */
main { min-height: 60vh; }

/* ============================================================
   TYPOGRAPHY HELPERS
   ============================================================ */
.label {
  display: inline-block;
  font-family: 'Fira Sans', sans-serif;
  font-weight: 800;
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--rust);
  margin-bottom: 0.75rem;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Fira Sans', sans-serif;
  font-weight: 800;
  font-size: 0.875rem;
  letter-spacing: 0.03em;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all var(--t);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--rust);
  color: #fff;
}
.btn-primary:hover {
  background: var(--rust-dark);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--rust);
  border: 1.5px solid var(--rust);
}
.btn-outline:hover {
  background: var(--rust-light);
  transform: translateY(-1px);
}

.btn-ghost {
  background: var(--surface-warm);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: var(--border-light);
  transform: translateY(-1px);
}

.btn-forest {
  background: var(--forest);
  color: #fff;
}
.btn-forest:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(28, 26, 23, 0.08);
  border-color: var(--rust-mid);
}

/* ============================================================
   RESPONSIVE VIDEO EMBED
   ============================================================ */
.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--surface-warm);
}
.video-wrapper iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: none;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--text);
  color: rgba(255,255,255,0.6);
  margin-top: 6rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 3rem;
  padding: 3.5rem 0 2.5rem;
}

.footer-logo {
  height: 72px;
  width: auto;
  margin: 0 auto;
  opacity: 0.9;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-nav a {
  font-family: 'Fira Sans', sans-serif;
  font-weight: 800;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  transition: color var(--t);
}
.footer-nav a:hover { color: #fff; }

.social-links {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  align-items: flex-end;
}

.social-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: 'Fira Sans', sans-serif;
  font-weight: 800;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  transition: all var(--t);
  color: #fff;
}
.social-btn svg { width: 16px; height: 16px; flex-shrink: 0; }
.social-btn.yt  { background: #FF0000; }
.social-btn.yt:hover  { background: #CC0000; transform: scale(1.03); }
.social-btn.ig  { background: linear-gradient(135deg, #833AB4, #FD1D1D, #FCAF45); }
.social-btn.ig:hover  { opacity: 0.88; transform: scale(1.03); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 0.8rem;
  margin: 0;
  color: rgba(255,255,255,0.55);   /* was 0.3 — dat haalde 2,72:1 */
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: #fff; }

/* ============================================================
   UTILITIES
   ============================================================ */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border-width: 0;
}

.text-rust    { color: var(--rust); }
.text-forest  { color: var(--forest); }
.text-muted   { color: var(--text-muted); }
.text-center  { text-align: center; }

.section { padding: 5rem 0; }
.section-sm { padding: 3rem 0; }
.section-lg { padding: 7rem 0; }

/* ============================================================
   MOBILE
   ============================================================ */
@media (max-width: 720px) {
  .nav-toggle { display: flex; }

  .site-nav {
    display: none;
    position: absolute;
    top: 69px;
    left: 0; right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem 1rem 1.25rem;
  }
  .site-nav.open { display: flex; }
  .site-nav a {
    font-size: 1rem;
    padding: 0.75rem 1rem;
  }

  .footer-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
    padding: 2.5rem 0 2rem;
  }
  .social-links { align-items: center; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* ============================================================
   SKIP-LINK — eerste tabstop, springt over de navigatie heen
   ============================================================ */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background: var(--rust);
  color: #fff;
  font-family: 'Fira Sans', sans-serif;
  font-weight: 800;
  font-size: 0.875rem;
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 var(--radius) 0;
}
.skip-link:focus {
  left: 0;
}

/* ============================================================
   FOCUS — altijd zichtbaar voor toetsenbordgebruikers
   ============================================================ */
:focus-visible {
  outline: 3px solid var(--rust);
  outline-offset: 2px;
}

/* ============================================================
   BEWEGING — respecteer de systeeminstelling
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   FOTOKAART — klikbare kaart met echte knopsemantiek
   De knop staat in de titel; het ::after-vlak maakt de hele
   kaart klikbaar zonder de koptekst in een <button> te stoppen.
   ============================================================ */
.foto-card { position: relative; }

.foto-open {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  margin: 0;
  text-align: left;
  cursor: pointer;
}
.foto-open::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 1;
}
.foto-open:focus-visible { outline: none; }
.foto-open:focus-visible::after {
  /* Naar binnen tekenen: .foto-card heeft overflow:hidden, dus een positieve
     offset valt buiten de kaart en wordt volledig weggeknipt. */
  outline: 3px solid var(--rust);
  outline-offset: -3px;
  border-radius: var(--radius-lg);
}

/* ============================================================
   LIGHTBOX — gedeeld door /fotos/ en de expedities
   ============================================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;   /* boven de cookiebanner, die op 9999 zit */
  background: rgba(28,26,23,0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
/* Moeten ná de display:flex-regels staan, anders wint die van [hidden]. */
.lightbox[hidden] { display: none; }

.lightbox-inner {
  position: relative;
  max-width: 1000px;
  width: 100%;
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  max-height: 90vh;
}

.lightbox-img-wrap {
  position: relative;
  background: #111;
  flex-shrink: 0;
}
.lightbox-img-wrap img {
  width: 100%;
  max-height: 60vh;
  object-fit: contain;
  display: block;
}

.lightbox-close,
.lightbox-nav {
  position: absolute;
  width: 40px;
  height: 40px;
  background: rgba(0,0,0,0.5);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: background var(--t);
  z-index: 2;
}
.lightbox-close:hover,
.lightbox-nav:hover { background: var(--rust); }
.lightbox-close svg { width: 16px; height: 16px; }
.lightbox-nav svg   { width: 20px; height: 20px; }

/* Zonder deze regel blijven de pijlen staan bij één foto: de class-regel
   display:flex hierboven wint van de UA-regel [hidden]{display:none}. */
.lightbox-nav[hidden],
.lightbox-close[hidden] { display: none; }

.lightbox-close { top: 0.75rem; right: 0.75rem; }
.lightbox-nav   { top: 50%; transform: translateY(-50%); }
.lightbox-nav.prev { left: 0.75rem; }
.lightbox-nav.next { right: 0.75rem; }

.lightbox-body {
  padding: 1.5rem;
  overflow-y: auto;
}
.lightbox-title {
  font-family: 'Fira Sans', sans-serif;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.lightbox-desc {
  color: var(--text-muted);
  font-size: 0.925rem;
  margin-bottom: 1rem;
  line-height: 1.7;
}
.lightbox-details {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
}
.lightbox-detail {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.825rem;
  color: var(--text-muted);
}
.lightbox-detail svg { width: 13px; height: 13px; color: var(--rust); flex-shrink: 0; }
.lightbox-detail strong { color: var(--text); font-weight: 600; }

@media (max-width: 600px) {
  .lightbox { padding: 0.75rem; }
  .lightbox-inner { border-radius: var(--radius); }
  .lightbox-nav { width: 34px; height: 34px; }
}