:root {
  --bg: #e9ebe4;
  --surface: #fdfcf8;
  --text: #222222d9;
  --muted: #5f675c;
  --line: #eceee8;
  --accent: #6f7f67;

  --outer-gap: 36px;
  --inner-gap: 24px;
  --radius: 0;
  --max-width: 1400px;
}

@font-face {
  font-family: "Source Serif 4";
  src: url("fonts/source-serif/source-serif-4-v14-latin-regular.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Source Serif 4", serif;
}

body {
  opacity: 0;
  transition: opacity 0.5s ease-out;
  min-height: 100vh;
  padding: var(--outer-gap);
}

body.is-visible {
  opacity: 1;
}

.overlay {
  max-width: var(--max-width);
  min-height: calc(100vh - (2 * var(--outer-gap)));
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  grid-template-rows: auto 1fr auto;
  overflow: hidden;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 22px 28px; /* etwas mehr Luft */
  border-bottom: 1px solid var(--line);
}

.title {
  font-size: clamp(22px, 2.2vw, 32px);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--accent);
}

.toplink {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

.stage {
  display: grid;
  grid-template-columns: 56px 1fr 56px;
  align-items: center;
  gap: 12px;
  padding: 24px;
}

.nav {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 42px;
  cursor: pointer;
}

.nav:hover {
  color: var(--accent);
}

.slide-area {
  position: relative;
  width: 100%;
  min-height: 70vh;
}

.slide {
  display: none;
  width: 100%;
  height: 100%;
}

.slide.is-active {
  display: grid;
}

.slide--intro {
  grid-template-columns: minmax(0, 1fr) minmax(380px, 430px);
  column-gap: 28px;
  align-items: stretch;
}

.slide--intro .textblock {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.slide--intro .textblock p {
  font-size: 1.12em;
  line-height: 1.6;
  margin: 0 0 18px 0;
}

.slide--intro .textblock p:first-child {
  font-size: 1.14em;
  line-height: 1.6;
}

.slide--intro .textblock p:nth-child(2) {
  margin-top: 24px;
}

.slide--intro .textblock p:nth-child(3) {
  margin-top: 24px;
}

.slide--image {
  grid-template-rows: 1fr auto;
  gap: 14px;
}

.slide--intro .media img {
  opacity: 0.92;
}

.slide--dates {
  grid-template-columns: minmax(320px, 1fr) 260px;
  gap: 24px;
  align-items: center;
}

.media {
  width: 100%;
}

.media img {
  display: block;
  width: 100%;
  max-height: 72vh;
  object-fit: contain;
}

.textblock h1,
.textblock h2 {
  margin-top: 0;
  margin-bottom: 16px;
}

.textblock p,
.caption {
  margin: 0 0 10px 0;
  line-height: 1.45;
}

.caption {
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.footer {
  display: flex;
  justify-content: center;
  gap: 18px;
  padding: 14px 24px 18px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}

.footer a {
  color: inherit;
  text-decoration: none;
}


@media (max-width: 1400px) {
  :root {
    --outer-gap: 28px;
  }

  .topbar {
    padding: 20px 24px;
  }

  .stage {
    padding: 20px;
  }

  .slide--intro {
    grid-template-columns: minmax(0, 1fr) 390px;
    column-gap: 24px;
  }
}

@media (max-width: 1100px) {
  .slide--intro {
    grid-template-columns: minmax(0, 1fr) 320px;
    column-gap: 20px;
  }

  .slide--intro .textblock p {
    font-size: 1.02em;
    line-height: 1.55;
  }

  .slide--intro .textblock p:first-child {
    font-size: 1.05em;
  }

  .media img,
  .sideimage img {
    max-height: 64vh;
  }
}

@media (max-width: 900px) {
  body {
    padding: 14px;
  }

  .overlay {
    min-height: calc(100vh - 28px);
  }

  .topbar {
    padding: 18px 20px;
  }

  .title {
    font-size: 24px;
  }

  .stage {
    grid-template-columns: 44px 1fr 44px;
    gap: 8px;
    padding: 16px;
    align-items: start;
  }

  .nav {
    font-size: 32px;
    align-self: start;
    margin-top: 6px;
  }

  .slide--intro,
  .slide--dates {
    grid-template-columns: 1fr;
    row-gap: 18px;
  }

  .slide--intro .textblock {
    justify-content: flex-start;
  }

  .slide--intro .textblock p {
    font-size: 1em;
    line-height: 1.55;
    margin: 0 0 14px 0;
  }

  .slide--intro .textblock p:first-child {
    font-size: 1.03em;
  }

  .media img,
  .sideimage img {
    max-height: 58vh;
  }
}

@media (max-width: 600px) {
  body {
    padding: 12px;
  }

  .topbar {
    padding: 14px 16px;
  }

  .title {
    font-size: 20px;
  }

  .toplink {
    font-size: 13px;
  }

  .stage {
    grid-template-columns: 36px 1fr 36px;
    gap: 6px;
    padding: 12px;
  }

  .nav {
    font-size: 26px;
    margin-top: 2px;
  }

  .slide-area {
    min-height: auto;
  }

  .slide--image {
    gap: 10px;
  }

  .caption {
    font-size: 13px;
  }

  .footer {
    gap: 12px;
    padding: 12px 16px 14px;
    font-size: 11px;
    flex-wrap: wrap;
  }

  .media img,
  .sideimage img {
    max-height: 48vh;
  }
}