:root {
  --bg: #10100f;
  --fg: #f4f2ed;
  --muted: rgba(244, 242, 237, .68);
  --accent: #d9ff49;
  --line: rgba(244, 242, 237, .22);
  --max: 1280px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: Manrope, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.6;
}

.shell {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: 42px;
  padding-right: 42px;
}

.header {
  height: 86px;
  position: absolute;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.wordmark {
  color: var(--fg);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .14em;
  text-decoration: none;
  display: inline-block;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--accent);
}

.wordmark span {
  color: inherit;
  font: inherit;
  letter-spacing: inherit;
  margin-left: 0;
}

.header nav {
  display: flex;
  gap: 28px;
}

.header nav a, .footer a {
  color: var(--fg);
  font: 11px 'DM Mono', monospace; /* Ietsje groter volgens originele fix */
  letter-spacing: .08em;
  text-decoration: none;
  text-transform: uppercase;
}

.header nav a:hover, .footer a:hover {
  color: var(--accent);
}

.scene {
  height: 100vh;
  min-height: 650px;
  position: relative;
  overflow: hidden;
}

.scene-image {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  transform: scale(1.02);
}

.scene-one .scene-image { background-image: url('assets/web/hero-f1-new.jpg'); }
.scene-two .scene-image { background-image: url('assets/web/formula-pulse-new.jpg'); }
.scene-three .scene-image { background-image: url('assets/web/dtm-document.jpg'); }
.scene-four .scene-image { background-image: url('assets/web/spa-atmosphere.jpg'); }
.scene-five .scene-image { background-image: url('assets/web/spa-moment.jpg'); }

.scene-four {
  height: 100vh;
  min-height: 650px;
}
.scene-four .scene-image {
  background-position: center bottom;
}

.shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(6,6,6,.78) 0%, rgba(6,6,6,.37) 43%, rgba(6,6,6,.08) 100%);
}

.scene-two .shade, .scene-four .shade {
  background: linear-gradient(90deg, rgba(6,6,6,.65), rgba(6,6,6,.18) 65%, rgba(6,6,6,.4));
}

.scene-content {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 65px;
}

.scene-one .scene-content { transform: translateY(-30px); }
.scene-two .scene-content, .scene-three .scene-content, .scene-four .scene-content { transform: translateY(-90px); }

.overline, .frame-number, .rail-label, .service-line {
  font: 10px 'DM Mono', monospace;
  letter-spacing: .13em;
  text-transform: uppercase;
}

.overline {
  color: var(--accent);
  margin: 0 0 28px;
}

.scene h1, h2 {
  font-size: clamp(58px, 8.5vw, 124px);
  font-weight: 500;
  letter-spacing: -.085em;
  line-height: .88;
  margin: 0;
}

.scene h1 em, h2 em {
  font-family: Georgia, serif;
  color: var(--accent);
  font-weight: 400;
  letter-spacing: -.09em;
}

.byline {
  color: var(--muted);
  margin: 30px 0 65px;
}

.next {
  color: var(--fg);
  font: 10px 'DM Mono', monospace;
  letter-spacing: .1em;
  text-decoration: none;
  text-transform: uppercase;
}

.next span {
  color: var(--accent);
  font-size: 18px;
  margin-left: 12px;
}

.frame-number {
  position: absolute;
  right: 42px;
  bottom: 145px;
  color: var(--fg);
  z-index: 2;
}

.split-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 90px;
  align-items: end;
}

.scene-two .split-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 35px;
}

.scene-copy {
  max-width: 420px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
  margin: 0 0 4px;
}

.scene-three .scene-copy {
  margin-top: 35px;
}

.service-line {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  max-width: 540px;
  color: var(--fg);
  margin-top: 46px;
}

.service-line span {
  border-bottom: 1px solid var(--line);
  padding-bottom: 6px;
}

/* --- Contact Blok --- */
.contact {
  height: 100vh;
  min-height: 650px;
  position: relative;
  background: var(--accent);
  color: #111;
}

.contact-content {
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact .overline, .contact .frame-number {
  color: #111;
}

.contact h2 {
  color: #111;
}

.contact h2 em {
  color: #111;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 8px;
}

.email {
  color: #111;
  font-size: clamp(18px, 2.4vw, 30px);
  text-decoration: none;
  border-bottom: 1px solid #111;
  padding-bottom: 7px;
  margin-top: 58px;
  width: max-content;
}

.email span {
  margin-left: 12px;
}

/* --- Footer --- */
.footer {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font: 10px 'DM Mono', monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.footer div {
  display: flex;
  gap: 22px;
}

.footer a {
  color: var(--muted);
}

/* --- Lightbox --- */
body.lightbox-open { overflow: hidden; }
.lightbox[hidden] { display: none; }

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(24px, 5vw, 72px);
  background: rgba(9, 9, 8, .94);
  backdrop-filter: blur(10px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .22s ease, visibility .22s ease;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox-image {
  display: block;
  max-width: 94vw;
  max-height: 88vh;
  width: auto;
  height: auto;
  object-fit: contain;
  box-shadow: 0 24px 80px rgba(0, 0, 0, .45);
}

.lightbox-close {
  position: absolute;
  top: 22px;
  right: 32px;
  border: 0;
  background: none;
  color: var(--fg);
  font: 32px/1 Arial, sans-serif;
  cursor: pointer;
  padding: 4px 8px;
  transition: color .2s ease, transform .2s ease;
}

.lightbox-close:hover {
  color: var(--accent);
  transform: scale(1.08);
}

.lightbox-prev, .lightbox-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  color: var(--muted);
  border: none;
  font-size: 32px;
  cursor: pointer;
  padding: 20px;
  transition: color .2s ease, transform .2s ease;
  z-index: 101;
}

.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }

.lightbox-prev:hover, .lightbox-next:hover { 
  color: var(--accent); 
  transform: translateY(-50%) scale(1.08); 
}

/* --- Desktop Rail (Vertical) --- */
@media (min-width: 721px) {
  /* Zorgt dat content nooit botst met de galerij (breedte rail: 280px incl padding) */
  .shell {
    padding-right: 320px;
  }
  .frame-number {
    right: 320px;
  }
  
  .portfolio-rail {
    position: fixed;
    top: 0;
    bottom: 0;
    left: auto;
    right: 0;
    width: 252px; /* Op basis van 168px img + (42px padding rechts + 42px padding links) */
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center; /* Centreert content in de 252px */
    background: rgba(10, 10, 9, 0.8); /* Vaste 80% donkere achtergrond */
    padding: 40px 42px;
    gap: 15px;
    z-index: 20;
    pointer-events: none;
  }

  /* Het Pseudo element voor de fade die strak 5px naast de foto's begint */
  .portfolio-rail::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: -150px; /* Bepaalt hoe ver de fade naar links de pagina in vloeit */
    width: 150px;
    /* De fade start massief zwart (0.8) strak aan de rand en vloeit uit naar transparant */
    background: linear-gradient(270deg, rgba(10, 10, 9, 0.8) 0%, rgba(10, 10, 9, 0) 100%);
    pointer-events: none;
    z-index: -1;
  }

  .rail-track, .rail-next, .rail-prev {
    pointer-events: auto;
  }

  .rail-label { 
    margin-bottom: 0; 
    text-align: center;
    width: 168px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    color: var(--fg);
    flex: none;
    padding-bottom: 2px;
  }
  
  .rail-label small {
    color: var(--muted);
    font-size: 9px;
  }

  .rail-track {
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    scroll-snap-type: y mandatory;
    width: 168px; /* 1.5x groter (origineel was 112px) */
    align-items: center;
    max-height: 60vh;
  }
  
  .rail-track::-webkit-scrollbar {
    display: none;
  }
  
  .rail-track a {
    width: 168px; /* 1.5x groter */
    height: 132px; /* 1.5x groter (origineel was 88px) */
    position: relative;
    display: block;
    flex: none;
    scroll-snap-align: start;
    overflow: hidden;
    border: 1px solid transparent;
  }
  
  .rail-track a:hover {
    border-color: var(--accent);
  }
  
  .rail-track img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(.35);
    transition: filter .25s, transform .25s;
  }
  
  .rail-track a:hover img {
    filter: grayscale(0);
    transform: scale(1.06);
  }

  /* Knoppen vormgegeven identiek aan Lightbox */
  .rail-next, .rail-prev {
    background: none;
    border: none;
    color: var(--muted);
    font-size: 32px; /* Zelfde fontgrootte als Lightbox pijlen */
    cursor: pointer;
    padding: 10px 0;
    margin: 0;
    width: 168px;
    text-align: center;
    transition: color .2s ease, transform .2s ease;
  }
  
  .rail-next:hover, .rail-prev:hover { 
    color: var(--accent); 
  }
  
  /* Lichte bounce animatie bij de pijltjes */
  .rail-prev:hover { transform: translateY(-4px) scale(1.08); }
  .rail-next:hover { transform: translateY(4px) scale(1.08); }
}

/* --- Mobile Layout Fixes --- */
@media (max-width: 720px) {
  .shell {
    padding-left: 20px;
    padding-right: 20px;
  }
  .header {
    height: 70px;
  }
  .header nav {
    gap: 15px;
  }
  .header nav a:nth-child(2) {
    display: none;
  }
  .scene, .contact {
    min-height: 680px;
    height: auto;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg);
  }
  .scene-content {
    padding-top: 30px;
    padding-bottom: 150px;
  }
  .scene h1, h2, .contact h2 {
    font-size: 59px;
  }
  .split-content {
    display: flex;
    flex-direction: column;
    gap: 36px;
    justify-content: center;
  }
  .scene-two .split-content {
    gap: 22px;
  }
  .scene-copy {
    font-size: 14px;
    line-height: 1.7;
  }
  .scene-three .scene-copy {
    margin-top: 22px;
  }
  .frame-number {
    right: 20px;
    bottom: 142px;
  }
  .service-line {
    margin-top: 35px;
    gap: 10px 16px;
    line-height: 1.5;
  }
  .scene .scene-image {
    position: relative;
    inset: auto;
    order: 1;
    width: 100%;
    height: clamp(360px, 58vh, 560px);
    min-height: 360px;
    flex: none;
    transform: none;
    background-size: cover;
  }
  .scene > .shade {
    display: none;
  }
  .scene .scene-content {
    order: 2;
    position: relative;
    width: 100%;
    height: auto;
    min-height: 0;
    margin-top: -92px;
    padding: 106px 20px 106px;
    justify-content: flex-start;
    transform: none;
    background: linear-gradient(180deg, rgba(16,16,15,0) 0, rgba(16,16,15,.84) 72px, var(--bg) 118px);
  }
  .scene-two .scene-content, .scene-three .scene-content, .scene-four .scene-content {
    transform: none;
  }
  .header {
    background: linear-gradient(180deg, rgba(10, 10, 9, 0.98) 0%, rgba(10, 10, 9, 0.88) 50%, rgba(10, 10, 9, 0) 100%);
    border-bottom: none;
  }

  /* Horizontale mobiele galerij onderaan */
  .portfolio-rail {
    position: fixed;
    z-index: 20;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    padding: 13px 20px 14px;
    display: flex;
    align-items: end;
    gap: 12px;
    background: linear-gradient(0deg, rgba(10,10,9,.98) 0%, rgba(10,10,9,.88) 72%, rgba(10,10,9,0) 100%);
    pointer-events: none;
  }
  .rail-label {
    width: 83px;
    font-size: 9px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    color: var(--fg);
    flex: none;
    padding-bottom: 2px;
  }
  .rail-label small {
    color: var(--muted);
    font-size: 9px;
  }
  
  /* Verberg pijltjes op mobiel */
  .rail-next, .rail-prev { display: none; }

  .rail-track {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    pointer-events: auto;
    padding-bottom: 1px;
    width: auto;
  }
  .rail-track::-webkit-scrollbar {
    display: none;
  }
  .rail-track a {
    width: 67px;
    height: 54px;
    position: relative;
    display: block;
    flex: none;
    scroll-snap-align: start;
    overflow: hidden;
    border: 1px solid transparent;
  }
  .rail-track img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  
  .footer {
    height: auto;
    padding-top: 24px;
    padding-bottom: 24px;
    gap: 14px;
    flex-wrap: wrap;
  }
  .footer div {
    order: 3;
    width: 100%;
  }
}