/* ---------------------------------------------------------
   adriankoenig.ch, Publikations-Landingpages
   Gemeinsames Stylesheet, gleiche Sprache wie style.css
   --------------------------------------------------------- */
@font-face {
  font-family: InterVariable;
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../assets/fonts/InterVariable.woff2") format("woff2");
}
@font-face {
  font-family: "Cormorant Garamond";
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
  src: url("../assets/fonts/CormorantGaramond.woff2") format("woff2");
}

:root {
  --ink: #f3f1ec;
  --ink-soft: #bcb8af;
  --muted: #94918a;
  --line: #34322e;
  --line-link: #6a6864;
  --bg: #181818;
  --bg-tone: #1f1e1c;
  --gutter: 44px;

  --serif: "Cormorant Garamond", "Iowan Old Style", "Apple Garamond", Georgia, serif;
  --sans: "InterVariable", "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { color-scheme: dark; }
body {
  font-family: var(--sans);
  font-size: 16px;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; transition: color .2s, border-color .2s; }
img { display: block; max-width: 100%; }
::selection { background: var(--ink); color: var(--bg); }
:focus { outline: none; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 1px; }

.skip-link {
  position: absolute;
  top: -40px;
  left: 12px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--ink);
  color: var(--bg);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  transition: top .2s ease;
}
.skip-link:focus { top: 12px; color: var(--bg); }

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 22px var(--gutter);
  border-bottom: 1px solid var(--line);
}
.nav .brand {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.nav .back {
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.nav .back:hover { color: var(--ink); }

.paper {
  flex: 1 0 auto;
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  padding: 96px var(--gutter) 120px;
}
.paper .kicker {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 26px;
}
.paper h1 {
  font-family: var(--serif);
  font-size: clamp(30px, 4.6vw, 52px);
  font-weight: 400;
  line-height: 1.14;
  letter-spacing: 0.005em;
  color: var(--ink);
}
.paper h1 .sub {
  display: block;
  font-size: 0.62em;
  color: var(--ink-soft);
  margin-top: 0.32em;
  line-height: 1.25;
}
.paper .authors {
  margin-top: 30px;
  font-size: 15px;
  color: var(--ink-soft);
}
.paper .source {
  margin-top: 6px;
  font-size: 13.5px;
  letter-spacing: 0.02em;
  color: var(--muted);
}
.paper .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 44px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}
.paper .btn {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border: 1px solid var(--ink);
  padding: 10px 18px;
  color: var(--ink);
  white-space: nowrap;
  transition: background .2s ease, color .2s ease;
}
.paper .btn:hover { background: var(--ink); color: var(--bg); }
.paper .btn.quiet { border-color: var(--line-link); color: var(--ink-soft); }
.paper .btn.quiet:hover { background: transparent; border-color: var(--ink); color: var(--ink); }
.paper .note {
  margin-top: 22px;
  font-size: 12.5px;
  color: var(--muted);
}

footer.foot {
  flex: 0 0 auto;
  border-top: 1px solid var(--line);
  padding: 32px var(--gutter);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}
footer.foot .foot-mark img { height: 13px; width: auto; }
footer.foot .foot-meta { text-align: center; }
footer.foot .foot-nav { text-align: right; }
footer.foot a { color: var(--muted); }
footer.foot a:hover { color: var(--ink); }

@media (max-width: 880px) {
  :root { --gutter: 22px; }
  .paper { padding-top: 64px; padding-bottom: 88px; }
}
@media (max-width: 520px) {
  footer.foot { grid-template-columns: 1fr; gap: 12px; text-align: center; }
  footer.foot .foot-nav { text-align: center; }
}