@font-face {
  font-family: 'Noto Sans Miao';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('noto-sans-miao.woff2') format('woff2');
}

:root {
  --bg: #f5f5f4;
  --ink: #2b2b2b;
  --ink-muted: #6c6f71;
  --line: #d7d8d7;
  --line-soft: #e7e7e6;
  --focus: #2b2b2b;
  --logo-filter: none;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #121313;
    --ink: #ececea;
    --ink-muted: #a3a5a3;
    --line: #2c2d2c;
    --line-soft: #1e1f1e;
    --focus: #ececea;
    --logo-filter: invert(1);
  }
}

:root[data-theme="dark"] {
  --bg: #121313;
  --ink: #ececea;
  --ink-muted: #a3a5a3;
  --line: #2c2d2c;
  --line-soft: #1e1f1e;
  --focus: #ececea;
  --logo-filter: invert(1);
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Noto Sans Miao', -apple-system, 'Segoe UI', sans-serif;
  overflow-x: hidden;
  transition: background 0.4s ease;
}

a { color: inherit; }

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

.contours-bg {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
  transform-origin: 50% 50%;
}

.contours-bg svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}

@keyframes terrainBreathe {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.9; transform: scale(1.035); }
}

@keyframes driftIndex {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-34px, 22px); }
}

@keyframes driftMinor {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -28px); }
}

@media (prefers-reduced-motion: no-preference) {
  .contours-bg {
    animation: terrainBreathe 16s ease-in-out infinite;
  }

  .contours-bg .contour-index,
  .contours-bg .contour-label {
    animation: driftIndex 20s ease-in-out infinite;
  }

  .contours-bg .contour-minor {
    animation: driftMinor 26s ease-in-out infinite;
    animation-delay: -8s;
  }
}

/* Sprachumschalter */

.lang-switch {
  position: fixed;
  top: 1.6rem;
  right: 1.6rem;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.lang-switch .sep {
  color: var(--line);
}

.lang-switch a,
.lang-switch span {
  text-decoration: none;
  color: var(--ink-muted);
  padding-bottom: 0.15em;
}

.lang-switch a:hover,
.lang-switch a:focus-visible {
  color: var(--ink);
}

.lang-switch .current {
  color: var(--ink);
  border-bottom: 1px solid var(--ink);
}

/* Startseite */

#progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--ink);
  z-index: 10;
  transition: background 0.4s ease;
}

.hero-wrap {
  position: relative;
  height: 180vh;
}

.hero {
  position: sticky;
  top: 0;
  z-index: 1;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6vh 6vw;
}

.logo {
  width: min(46vw, 46vh, 320px);
  height: auto;
  filter: var(--logo-filter);
}

.claim-section {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.2rem;
  padding: 6vh 6vw;
}

.claim {
  margin: 0;
  max-width: 28rem;
  text-align: center;
  font-size: 1.15rem;
  line-height: 1.5;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.claim-description {
  margin: 0;
  max-width: 32rem;
  text-align: center;
  font-size: 0.95rem;
  line-height: 1.6;
  letter-spacing: 0.01em;
  color: var(--ink-muted);
}

.contact {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  text-align: center;
  padding: 6vh 6vw;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
}

.contact .copyright {
  opacity: 0.75;
  font-size: 0.72rem;
}

.contact a {
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.1em;
  transition: border-color 0.2s ease;
  font-size: 1rem;
}

.contact a:hover,
.contact a:focus-visible {
  border-color: var(--ink-muted);
}

@media (orientation: landscape) and (max-height: 500px) {
  .hero {
    padding: 3vh 6vw;
  }

  .logo {
    width: min(28vw, 34vh, 220px);
  }
}

.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 4vh;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--ink-muted);
  cursor: pointer;
  transition: color 0.2s ease, transform 0.2s ease;
}

.scroll-hint svg {
  width: 1.4rem;
  height: 1.4rem;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.scroll-hint:hover,
.scroll-hint:focus-visible {
  color: var(--ink);
  transform: translateX(-50%) translateY(3px);
}

@media (prefers-reduced-motion: no-preference) {
  .scroll-hint svg {
    animation: bob 2.2s ease-in-out infinite;
  }
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(5px); }
}

@media (orientation: landscape) and (max-height: 500px) {
  .scroll-hint {
    bottom: 2vh;
  }
}

/* Impressum */

.page-impressum {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 6vh 6vw;
}

main {
  position: relative;
  z-index: 1;
  max-width: 32rem;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
}

main h1 {
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0;
  color: var(--ink-muted);
}

main address {
  font-style: normal;
  line-height: 1.7;
  font-size: 1rem;
}

main a {
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.1em;
  transition: border-color 0.2s ease;
}

main a:hover,
main a:focus-visible {
  border-color: var(--ink-muted);
}

.back {
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  align-self: flex-start;
}