@font-face {
  font-family: "Hanken";
  src: url("fonts/hanken-grotesk-latin-wght-normal.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Hanken";
  src: url("fonts/hanken-grotesk-latin-wght-italic.woff2") format("woff2");
  font-weight: 100 900;
  font-style: italic;
  font-display: swap;
}

:root {
  --kalk: #F2F1ED;
  --beton: #CFCDC6;
  --beton-hell: #E4E2DC;
  --schiefer: #1C2733;
  --schiefer-weich: #4A5563;
  --stahl: #355F94;
  --hellblau: #D6E1EE;
  --font: "Hanken", "Helvetica Neue", Arial, sans-serif;
  --wrap: 68rem;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --track-x: clamp(4.5rem, 12vw, 9rem);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--kalk);
  color: var(--schiefer);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.55;
  font-feature-settings: "tnum" 1, "ss01" 1;
}
img { display: block; max-width: 100%; }
h1, h2, h3, p, dl, ol { margin: 0; }
a { color: var(--stahl); }
a:focus-visible, .hero-scroll:focus-visible { outline: 2px solid var(--stahl); outline-offset: 4px; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }

.skip {
  position: absolute; left: 1rem; top: -4rem; z-index: 10;
  background: var(--schiefer); color: #fff; padding: .5rem .75rem; text-decoration: none;
}
.skip:focus { top: 1rem; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  align-items: end;
  color: #fff;
  isolation: isolate;
  overflow: hidden;
}
.hero-media, .hero-media img {
  position: absolute; inset: 0; width: 100%; height: 100%;
}
.hero-media img { object-fit: cover; object-position: 74% 35%; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(180deg, rgba(28,39,51,0) 40%, rgba(28,39,51,.78) 100%),
    linear-gradient(90deg, rgba(28,39,51,.55) 0%, rgba(28,39,51,0) 55%);
}
.hero-text {
  position: relative; z-index: 2;
  width: min(100%, var(--wrap));
  margin-inline: auto;
  padding: 0 var(--gutter) clamp(3rem, 8vh, 6rem);
}
.hero-kicker {
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  font-weight: 500;
  color: var(--hellblau);
  margin-bottom: .75rem;
}
.hero h1 {
  font-size: clamp(3.25rem, 10vw, 7rem);
  line-height: .92;
  font-weight: 650;
  letter-spacing: -.035em;
}
.hero-lead {
  max-width: 34ch;
  margin-top: 1.5rem;
  font-size: clamp(1.0625rem, 1.5vw, 1.3rem);
  line-height: 1.45;
  color: rgba(255,255,255,.88);
}
.hero-scroll {
  position: absolute; right: var(--gutter); bottom: clamp(1.5rem, 5vh, 3rem); z-index: 2;
  color: #fff; opacity: .8;
}

/* page-load: one orchestrated reveal */
.hero-kicker, .hero h1, .hero-lead { opacity: 0; transform: translateY(14px); animation: rise .9s cubic-bezier(.2,.7,.2,1) forwards; }
.hero h1 { animation-delay: .12s; }
.hero-lead { animation-delay: .28s; }
@keyframes rise { to { opacity: 1; transform: none; } }

/* ---------- Intro ---------- */
.intro { padding: clamp(4rem, 10vh, 7rem) 0 clamp(3rem, 8vh, 5rem); }
.intro-text {
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  line-height: 1.35;
  font-weight: 450;
  letter-spacing: -.012em;
  max-width: 32ch;
}
.facts {
  margin-top: clamp(2.5rem, 6vh, 4rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 1.5rem 2.5rem;
  border-top: 1px solid var(--beton);
  padding-top: 1.5rem;
}
.facts dt { font-size: .9rem; color: var(--schiefer-weich); font-weight: 500; }
.facts dd { margin: .2rem 0 0; font-weight: 550; }

/* ---------- Stationen ---------- */
.stationen { padding: clamp(3rem, 8vh, 6rem) 0; }
.stationen-head { max-width: 46ch; margin-bottom: clamp(3rem, 7vh, 5rem); }
h2 {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  line-height: 1.05;
  font-weight: 600;
  letter-spacing: -.025em;
  margin-bottom: 1rem;
}
.stationen-head p { color: var(--schiefer-weich); font-size: 1.125rem; }

.track {
  list-style: none;
  padding: 0;
  position: relative;
  --progress: 0;
}
/* the survey line: a dotted base and a solid blue fill that grows with scroll */
.track::before, .track::after {
  content: ""; position: absolute; top: 0; bottom: 0;
  left: calc(var(--track-x) - 1px); width: 2px;
}
.track::before { background: repeating-linear-gradient(var(--beton) 0 6px, transparent 6px 12px); }
.track::after {
  background: var(--stahl);
  transform: scaleY(var(--progress));
  transform-origin: top;
}

.station {
  position: relative;
  display: grid;
  grid-template-columns: var(--track-x) 1fr;
  padding-bottom: clamp(3rem, 8vh, 5.5rem);
}
.station:last-child { padding-bottom: 1rem; }

.marker { position: relative; }
.chainage {
  position: absolute; left: 0; top: 0;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 650;
  letter-spacing: -.02em;
  line-height: 1;
  color: var(--beton);
  transition: color .5s ease;
}
.tick {
  position: absolute; left: calc(var(--track-x) - 7px); top: .1em;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--kalk);
  border: 2px solid var(--beton);
  transition: border-color .5s ease, background-color .5s ease;
}

.card {
  padding-left: clamp(1.5rem, 4vw, 3rem);
  max-width: 54ch;
  opacity: .35;
  transform: translateX(10px);
  transition: opacity .6s ease, transform .6s cubic-bezier(.2,.7,.2,1);
}
.when { font-size: .95rem; color: var(--schiefer-weich); font-weight: 500; margin-bottom: .5rem; }
.card h3 {
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  line-height: 1.15;
  font-weight: 600;
  letter-spacing: -.018em;
}
.where { font-weight: 550; color: var(--stahl); margin: .35rem 0 .9rem; }

.station.is-active .card { opacity: 1; transform: none; }
.station.is-active .chainage { color: var(--schiefer); }
.station.is-active .tick { border-color: var(--stahl); background: var(--stahl); }
.station-now.is-active .tick { box-shadow: 0 0 0 6px var(--hellblau); }

/* ---------- Haltung ---------- */
.haltung { background: var(--schiefer); color: var(--kalk); padding: clamp(4rem, 10vh, 7rem) 0; }
.haltung h2 { max-width: 20ch; }
.traits {
  margin-top: clamp(2rem, 5vh, 3.5rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
  gap: 0 3rem;
}
.traits article { padding: 1.5rem 0; border-top: 1px solid rgba(242,241,237,.18); }
.traits h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: .5rem; letter-spacing: -.01em; }
.traits p { color: rgba(242,241,237,.78); }

/* ---------- Kontakt ---------- */
.kontakt { padding: clamp(4rem, 10vh, 7rem) 0; background: var(--hellblau); }
.kontakt p { font-size: 1.125rem; max-width: 44ch; }
.mail {
  display: inline-block;
  margin-top: 1.25rem;
  font-size: clamp(1.4rem, 3.4vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -.02em;
  text-decoration: none;
  border-bottom: 2px solid currentColor;
  padding-bottom: .1em;
  word-break: break-all;
}
.mail:hover { color: var(--schiefer); }

/* ---------- Footer ---------- */
.foot { padding: 2rem 0 2.5rem; font-size: .9rem; color: var(--schiefer-weich); }
.foot .wrap { display: flex; flex-wrap: wrap; gap: .75rem 2rem; justify-content: space-between; }
.foot a { color: inherit; margin-left: 1.25rem; }
.foot a:first-child { margin-left: 0; }

/* ---------- Impressum page ---------- */
.legal { padding: clamp(4rem, 10vh, 6rem) 0; }
.legal .wrap { max-width: 44rem; }
.legal h2 { font-size: 1.5rem; margin-top: 3rem; }
.legal h3 { font-size: 1.1rem; margin-top: 1.5rem; }
.legal p { margin-top: .75rem; }
.legal .back { display: inline-block; margin-bottom: 2rem; }

/* ---------- Mobile ---------- */
@media (max-width: 40rem) {
  :root { --track-x: 1.25rem; }
  .station { grid-template-columns: var(--track-x) 1fr; }
  .chainage { display: none; }
  .card { padding-left: 1.25rem; transform: none; }
  .hero-media img { object-position: 68% 30%; }
  .hero-lead { max-width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-kicker, .hero h1, .hero-lead { animation: none; opacity: 1; transform: none; }
  .card { opacity: 1; transform: none; transition: none; }
  .track::after { transition: none; }
}

/* Ersatz für das Inline-Style in impressum.html (die CSP erlaubt keine Inline-Styles) */
.legal #impressum { margin-top: 0; }
.reveal {
  margin-left: .5rem; padding: .2rem .7rem; font: inherit; font-size: .9em; cursor: pointer;
  color: var(--stahl); background: transparent; border: 1px solid var(--stahl); border-radius: 999px;
}
.reveal:hover, .reveal:focus-visible { color: var(--kalk); background: var(--stahl); }