:root {
  --ink: #05183b;
  --link: #1687cf;
  --footer: #287fc1;
  --max: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: #fff;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: min(var(--max), calc(100% - 40px));
  margin: 0 auto;
}

.narrow { max-width: 1060px; }

.hero {
  width: 100%;
  aspect-ratio: 16 / 9;
  max-height: 100vh;
  background: #000;
}

.hero iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.local-video-message {
  width: 100%;
  height: 100%;
  padding: 30px;
  color: #fff;
  background: linear-gradient(135deg, #05101b, #143243);
  text-align: center;
}

.local-video-message:not([hidden]) {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.local-video-message strong { font-size: clamp(1.25rem, 3vw, 2rem); }

.local-video-message a {
  margin-top: 10px;
  padding: 12px 20px;
  color: #fff;
  background: #e62117;
  border-radius: 5px;
  font-weight: 700;
  text-decoration: none;
}

.section {
  padding: 56px 0;
  text-align: center;
}

h1, h2 {
  margin: 0 0 42px;
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.12;
}

h1 { font-size: clamp(2.15rem, 4vw, 3.15rem); }
h2 { font-size: clamp(2rem, 3.4vw, 2.8rem); }

p { margin: 0; }
a { color: var(--link); }

.intro { padding-top: 58px; }

.intro-content {
  display: grid;
  grid-template-columns: 165px 1fr 165px;
  align-items: center;
  gap: 38px;
}

.intro-content::after { content: ""; }

.intro-content p {
  font-size: 1.05rem;
  line-height: 1.72;
}

.book {
  display: block;
  width: 105px;
  height: auto;
  margin: 0 auto;
}

.reviews { padding-top: 36px; padding-bottom: 42px; }

.review-slider {
  position: relative;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 70px;
}

.review-slides {
  display: grid;
  place-items: center;
  min-height: 510px;
}

.review-slide {
  margin: 0;
  animation: slide-in .3s ease-out;
}

.review-slide img {
  display: block;
  width: auto;
  max-width: 100%;
  max-height: 470px;
  margin: 0 auto;
  object-fit: contain;
  box-shadow: 0 12px 35px rgb(5 24 59 / 15%);
}

.review-slide figcaption {
  margin-top: 14px;
  font-size: .95rem;
  font-weight: 700;
}

.review-slide.image-missing {
  width: min(100%, 700px);
  padding: 70px 25px;
  border: 2px dashed #c7ced8;
  background: #f7f8fa;
}

.review-slide.image-missing::before {
  content: "Afbeelding ontbreekt op de server. Upload de volledige map assets opnieuw.";
  display: block;
  margin-bottom: 12px;
  font-weight: 700;
}

.review-slide.image-missing img { display: none; }

.slider-button {
  position: absolute;
  top: 235px;
  width: 46px;
  height: 46px;
  border: 0;
  border-radius: 50%;
  color: #fff;
  background: var(--ink);
  font-size: 1.25rem;
  cursor: pointer;
  transform: translateY(-50%);
  transition: background .18s ease, transform .18s ease;
}

.slider-button:hover,
.slider-button:focus-visible {
  background: var(--footer);
  outline: 3px solid rgb(40 127 193 / 25%);
  outline-offset: 3px;
  transform: translateY(-50%) scale(1.06);
}

.slider-button.previous { left: 4px; }
.slider-button.next { right: 4px; }

.slider-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 18px;
}

.slider-dots button {
  width: 11px;
  height: 11px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: #bdc5d2;
  cursor: pointer;
}

.slider-dots button.is-active { background: var(--footer); }

@keyframes slide-in {
  from { opacity: 0; transform: translateX(10px); }
  to { opacity: 1; transform: translateX(0); }
}

.reviews blockquote {
  margin: 90px 0 0;
  font-size: clamp(1.8rem, 3.3vw, 2.55rem);
  font-weight: 800;
  letter-spacing: -1px;
}

.theme-slider { margin-top: 55px; }

.theme-slider .review-slides { min-height: 390px; }

.theme-slider .review-slide img {
  max-height: 350px;
  box-shadow: 0 8px 28px rgb(5 24 59 / 11%);
}

.theme-slider .slider-button { top: 175px; }

.talks { padding-top: 16px; }
.talks h2 { margin-bottom: 30px; }
.talks p { font-size: 1.02rem; }

.buy { padding-top: 54px; padding-bottom: 90px; }
.buy h2 { margin-bottom: 28px; }
.buy > .container > p { font-size: 1.02rem; }

.shops {
  display: grid;
  grid-template-columns: repeat(3, 150px);
  justify-content: center;
  align-items: center;
  gap: 22px 30px;
  margin-top: 40px;
}

.shops a {
  display: grid;
  place-items: center;
  width: 150px;
  height: 150px;
  border-radius: 4px;
  transition: transform .18s ease, box-shadow .18s ease;
}

.shops a:hover,
.shops a:focus-visible {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgb(5 24 59 / 13%);
  outline: none;
}

.shops img {
  display: block;
  max-width: 150px;
  max-height: 150px;
  object-fit: contain;
}

.shops a:nth-child(4) { grid-column: 1 / 2; justify-self: end; }
.shops a:nth-child(5) { grid-column: 2 / 4; justify-self: start; }

footer {
  padding: 25px 0;
  color: #fff;
  background: var(--footer);
  font-size: .95rem;
  font-weight: 700;
}

@media (max-width: 700px) {
  .container { width: min(100% - 28px, var(--max)); }
  .section { padding: 44px 0; }
  h1, h2 { margin-bottom: 28px; }
  .intro-content { grid-template-columns: 1fr; gap: 25px; }
  .intro-content::after { display: none; }
  .book { width: 115px; }
  .reviews blockquote { margin-top: 66px; }
  .review-slider { padding: 0 42px; }
  .review-slides { min-height: 410px; }
  .review-slide img { max-height: 370px; }
  .slider-button { top: 185px; width: 38px; height: 38px; }
  .slider-button.previous { left: -3px; }
  .slider-button.next { right: -3px; }
  .theme-slider { margin-top: 40px; }
  .theme-slider .review-slides { min-height: 310px; }
  .theme-slider .review-slide img { max-height: 270px; }
  .theme-slider .slider-button { top: 135px; }
  .shops { grid-template-columns: repeat(2, 132px); gap: 16px; }
  .shops a { width: 132px; height: 132px; }
  .shops img { max-width: 132px; max-height: 132px; }
  .shops a:nth-child(4), .shops a:nth-child(5) { grid-column: auto; justify-self: auto; }
  .shops a:last-child { grid-column: 1 / -1; justify-self: center; }
  footer { text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .shops a { transition: none; }
  .review-slide { animation: none; }
}