/* Website foundation. Components and editorial layouts live in landing.css. */
@font-face {
  font-family: "Newsreader";
  font-style: normal;
  font-weight: 200 800;
  font-display: swap;
  src: url("../fonts/newsreader-var.woff2") format("woff2");
}
@font-face {
  font-family: "Newsreader";
  font-style: italic;
  font-weight: 200 800;
  font-display: swap;
  src: url("../fonts/newsreader-var-italic.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 100 700;
  font-display: swap;
  src: url("../fonts/ibm-plex-sans-var.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono-400.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/ibm-plex-mono-500.woff2") format("woff2");
}

* { box-sizing: border-box; }

html { scroll-padding-top: 5rem; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--font-body);
  font-optical-sizing: auto;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 4;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
}

a { color: var(--navy); }
a:hover { color: var(--seal); }

code, kbd, pre { font-family: var(--font-mono); }

img, svg, video { max-width: 100%; }

.skip-link {
  position: absolute;
  top: -100%;
  left: 0.6rem;
  z-index: 200;
  padding: 0.55rem 0.95rem;
  border-radius: var(--radius);
  background: var(--navy);
  color: var(--paper);
  font-weight: 600;
  text-decoration: none;
}
.skip-link:focus { top: 0.6rem; outline: 2px solid var(--seal); outline-offset: 2px; }
main:focus { outline: none; }

.site-header {
  display: flex;
  position: sticky;
  top: 0;
  z-index: 20;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.5rem;
  border-bottom: 1px solid var(--rule);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(10px) saturate(1.1);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
}
.brand-mark { display: inline-flex; color: var(--navy); }

.header-meta { display: flex; align-items: center; gap: 1rem; }
.header-meta a {
  padding: 0.25rem 0.1rem 0.1rem;
  border-bottom: 1px solid transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}
.header-meta a:hover { border-bottom-color: var(--seal); color: var(--navy); }
.header-meta .header-login-link {
  margin-left: 0.15rem;
  padding: 0.42rem 0.78rem;
  border: 1px solid rgb(28 70 99 / 30%);
  border-radius: var(--radius);
  background: var(--brand-tint);
}
.header-meta .header-login-link:hover { border-color: var(--navy); background: var(--navy); color: var(--paper); }

.back-link { margin-bottom: 2rem; font-family: var(--font-mono); font-size: 0.78rem; }
.back-link a { text-decoration: none; }

@media (max-width: 42rem) {
  .site-header { padding-inline: 1rem; }
  .header-meta { gap: 0.6rem; }
  .header-meta a[href="/#preis"], .header-meta a[href="/#fragen"] { display: none; }
  .brand > span:last-child { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
}

@media print {
  body::after, .site-header, .ld-footer, .ld-outro { display: none; }
}