/* ==========================================================================
   Banner Studio - designsysteem
   Wit, zwart, veel lucht. Montserrat als enige letter.
   ========================================================================== */

:root {
  /* Kleur */
  --white: #ffffff;
  --black: #000000;
  --ink: #1e293b;          /* koppen */
  --body: #565656;         /* lopende tekst */
  --muted: #8b8b8b;        /* bijschriften, meta */
  --line: #e6e6e6;         /* randen en scheidingen */
  --soft: #f6f6f6;         /* vlak met lichte vulling */
  --focus: #2563eb;        /* zichtbare toetsenbordfocus */
  --error: #b42318;

  /* Typografie */
  --font: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --fs-base: 1rem;
  --lh-base: 1.7;

  /* Ritme */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4.5rem;
  --space-7: 6.5rem;

  /* Vorm */
  --container: 1200px;
  --container-narrow: 760px;
  --radius: 4px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 8px 30px rgba(0, 0, 0, 0.06);
  --header-h: 76px;
}

/* --- Reset ---------------------------------------------------------------- */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--white);
  color: var(--body);
  font-family: var(--font);
  font-size: var(--fs-base);
  font-weight: 400;
  line-height: var(--lh-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a { color: inherit; }

h1, h2, h3, h4 {
  color: var(--ink);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 var(--space-2);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 var(--space-3); }
p:last-child { margin-bottom: 0; }

ul, ol { margin: 0 0 var(--space-3); padding-left: 1.25rem; }
li { margin-bottom: 0.35rem; }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* --- Bouwstenen ----------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.container--narrow { max-width: var(--container-narrow); }

.section { padding-block: var(--space-6); }
.section--tight { padding-block: var(--space-5); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--black);
  color: var(--white);
  padding: 0.75rem 1.25rem;
  text-decoration: none;
}
.skip-link:focus { left: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--black);
  color: var(--white);
  border: 1px solid var(--black);
  border-radius: var(--radius);
  padding: 15px 30px;
  font: inherit;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}
.btn:hover { background: #2b2b2b; border-color: #2b2b2b; }
.btn[disabled] { opacity: 0.55; cursor: progress; }

.btn--ghost {
  background: transparent;
  color: var(--black);
}
.btn--ghost:hover { background: var(--black); color: var(--white); }

.link-underline {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.link-underline:hover { color: var(--black); }

/* --- Header --------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--white);
  border-bottom: 1px solid transparent;
}
.site-header.is-stuck { border-bottom-color: var(--line); }

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  min-height: var(--header-h);
}

.brand {
  color: var(--ink);
  font-size: clamp(1.25rem, 3.2vw, 2rem);
  font-weight: 300;
  letter-spacing: 0.04em;
  text-decoration: none;
  white-space: nowrap;
}
.brand:hover { color: var(--black); }

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 0.5rem;
  cursor: pointer;
  color: var(--ink);
}
.nav-toggle svg { display: block; }

.nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav a {
  color: var(--body);
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  padding-block: 0.5rem;
  transition: color 0.2s ease;
}
.nav a:hover,
.nav a[aria-current='page'] { color: var(--black); }

@media (max-width: 768px) {
  .nav-toggle { display: block; }

  .nav {
    position: absolute;
    inset: 100% 0 auto;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    display: none;
  }
  .nav.is-open { display: block; }

  .nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-2) var(--space-3) var(--space-3);
  }
  .nav a {
    display: block;
    padding: 0.85rem 0;
    border-bottom: 1px solid var(--line);
    font-size: 0.875rem;
  }
  .nav li:last-child a { border-bottom: 0; }
}

/* --- Hero ----------------------------------------------------------------- */

.hero {
  position: relative;
  display: grid;
  place-items: center;
  min-height: clamp(180px, 30vw, 340px);
  overflow: hidden;
  background: #2a2a2a;
}

.hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__title {
  position: relative;
  margin: 0;
  color: var(--white);
  font-size: clamp(2.75rem, 9vw, 5rem);
  font-weight: 300;
  letter-spacing: 0.02em;
  line-height: 1;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.35);
}

/* Paginakop zonder foto */
.page-head { padding-block: var(--space-6) var(--space-4); }

.page-head__title {
  margin: 0;
  color: var(--ink);
  font-size: clamp(2.5rem, 8vw, 4.5rem);
  font-weight: 300;
  letter-spacing: 0.01em;
  line-height: 1;
}

.page-head__intro {
  max-width: 46rem;
  margin-top: var(--space-3);
}

/* --- About ---------------------------------------------------------------- */

.about {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(var(--space-4), 5vw, var(--space-6));
  align-items: center;
}

.about__photo {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  background: var(--soft);
}

.about__body p + p { margin-top: var(--space-3); }
.about__actions { margin-top: var(--space-4); }

@media (max-width: 820px) {
  .about { grid-template-columns: 1fr; }
  .about__photo { max-width: 420px; }
}

/* --- Galerij -------------------------------------------------------------- */

.gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.gallery li { margin: 0; }

.gallery__item {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: var(--soft);
  cursor: zoom-in;
  overflow: hidden;
}

.gallery__item img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  transition: transform 0.45s ease, opacity 0.25s ease;
}
.gallery__item:hover img { transform: scale(1.04); opacity: 0.92; }

@media (max-width: 900px) { .gallery { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; } }
@media (max-width: 600px) { .gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; } }

/* --- Lightbox ------------------------------------------------------------- */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: none;
  place-items: center;
  background: rgba(0, 0, 0, 0.92);
  padding: clamp(1rem, 4vw, 3rem);
}
.lightbox[open] { display: grid; }

.lightbox img {
  max-width: min(100%, 1000px);
  max-height: 82vh;
  width: auto;
  object-fit: contain;
}

.lightbox__count {
  position: absolute;
  bottom: clamp(1rem, 3vw, 2rem);
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.8125rem;
  letter-spacing: 0.08em;
}

.lightbox__btn {
  position: absolute;
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  background: none;
  border: 0;
  border-radius: 50%;
  color: var(--white);
  cursor: pointer;
  transition: background-color 0.2s ease;
}
.lightbox__btn:hover { background: rgba(255, 255, 255, 0.14); }
.lightbox__btn--close { top: clamp(0.5rem, 2vw, 1.25rem); right: clamp(0.5rem, 2vw, 1.25rem); }
.lightbox__btn--prev { left: clamp(0.25rem, 2vw, 1.5rem); top: 50%; transform: translateY(-50%); }
.lightbox__btn--next { right: clamp(0.25rem, 2vw, 1.5rem); top: 50%; transform: translateY(-50%); }

/* --- Contact -------------------------------------------------------------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
  gap: clamp(var(--space-4), 5vw, var(--space-6));
  align-items: start;
}

@media (max-width: 820px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.info-block + .info-block { margin-top: var(--space-4); }

.info-block h2 {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: var(--space-2);
}

.info-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.info-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.75rem;
  padding-block: 0.4rem;
  border-bottom: 1px solid var(--line);
  margin: 0;
}
.info-list li:last-child { border-bottom: 0; }
.info-list dt,
.info-list .label {
  min-width: 6.5rem;
  color: var(--muted);
  font-size: 0.8125rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* --- Formulier ------------------------------------------------------------ */

.form { margin-top: var(--space-3); }

.form__row { margin-bottom: var(--space-3); }

.form label {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--ink);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.form input,
.form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
  font: inherit;
  transition: border-color 0.2s ease;
}
.form input:hover,
.form textarea:hover { border-color: #cfcfcf; }
.form input:focus,
.form textarea:focus { border-color: var(--black); outline: none; }

.form textarea { min-height: 170px; resize: vertical; }

.form input[aria-invalid='true'],
.form textarea[aria-invalid='true'] { border-color: var(--error); }

.form__error {
  display: none;
  margin-top: 0.35rem;
  color: var(--error);
  font-size: 0.8125rem;
}
.form__error.is-visible { display: block; }

.form__consent {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.875rem;
}
.form__consent input {
  width: auto;
  margin-top: 0.25rem;
  accent-color: var(--black);
}
.form__consent label {
  margin: 0;
  color: var(--body);
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0;
  text-transform: none;
}

.form__hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form__status {
  display: none;
  margin-bottom: var(--space-3);
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--error);
  background: #fdf3f2;
  color: var(--error);
  font-size: 0.9375rem;
}
.form__status.is-visible { display: block; }

/* --- Bedankpagina --------------------------------------------------------- */

.notice {
  max-width: 40rem;
  padding-block: var(--space-6);
}
.notice__mark {
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  margin-bottom: var(--space-3);
  border: 1px solid var(--black);
  border-radius: 50%;
}

/* --- Lange tekstpagina ---------------------------------------------------- */

.prose h2 { margin-top: var(--space-5); }
.prose h3 { margin-top: var(--space-4); }
.prose h2:first-child,
.prose h3:first-child { margin-top: 0; }
.prose ul { margin-bottom: var(--space-3); }
.prose .meta { color: var(--muted); font-size: 0.875rem; }

/* --- Footer --------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--line);
  margin-top: var(--space-6);
  padding-block: var(--space-4);
  font-size: 0.875rem;
}

/* Drie kolommen met gelijke zijkanten, zodat de links echt in het midden
   staan en niet meeschuiven met de breedte van de buren. */
.site-footer__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-2) var(--space-3);
}

/* Zonder dit erft de alinea de ondermarge van p en gaat de tekst omhoog
   staan ten opzichte van de links: die marge telt mee bij het uitlijnen. */
.site-footer__inner > p { margin: 0; }

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-footer__inner > .credit { justify-self: end; }

@media (max-width: 860px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    gap: var(--space-3);
  }
  .site-footer__inner > .credit { justify-self: center; }

  /* Naast elkaar wikkelden de links rommelig: vier op een rij en de vijfde
     alleen eronder. Onder elkaar leest netter en tikt prettiger. */
  .site-footer__links {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }
  .site-footer__links a {
    display: block;
    padding-block: 0.45rem;
  }
}
.site-footer__links li { margin: 0; }
.site-footer__links a { color: var(--body); text-decoration: none; }
.site-footer__links a:hover { color: var(--black); text-decoration: underline; }

.credit {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  text-decoration: none;
}
.credit:hover { color: var(--body); }
.credit img { height: 18px; width: auto; }

/* --- Terug naar boven ----------------------------------------------------- */

.to-top {
  position: fixed;
  right: clamp(0.75rem, 2vw, 1.5rem);
  bottom: clamp(0.75rem, 2vw, 1.5rem);
  z-index: 40;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  background: var(--black);
  border: 0;
  border-radius: 50%;
  color: var(--white);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}
.to-top.is-visible { opacity: 0.85; visibility: visible; }
.to-top:hover { opacity: 1; }

/* --- Hulpklassen ---------------------------------------------------------- */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}