@font-face {
  font-family: "Inter";
  src: url("fonts/inter.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --bg: #f6f5f2;
  --text: #16181b;
  --muted: #575c63;
  --accent: #2a4a73;
  --line: #d6d4cf;
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1113;
    --text: #ecebe8;
    --muted: #9a9fa6;
    --accent: #93b4e0;
    --line: #2a2e33;
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.7;
  font-feature-settings: "cv11", "ss03";
  overflow-wrap: break-word;
}

.col {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding-left: clamp(1.5rem, 6vw, 4rem);
  padding-right: clamp(1.5rem, 6vw, 4rem);
}

main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 5rem;
  padding-bottom: 5rem;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.25em;
}

a:hover { text-decoration-thickness: 2px; }

a:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
  border-radius: 2px;
}

.logo {
  display: block;
  width: clamp(3.5rem, 7vw, 5rem);
  height: auto;
  margin: 0 0 2.25rem -0.1rem;
  color: var(--accent);
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.025em;
}

.role {
  margin: 0.75rem 0 0;
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--muted);
}

header::after {
  content: "";
  display: block;
  width: 4rem;
  margin: 2.75rem 0;
  border-top: 2px solid var(--accent);
}

.lead {
  margin: 0;
  max-width: 30ch;
  font-size: clamp(1.25rem, 3.5vw, 1.5rem);
  line-height: 1.5;
  letter-spacing: -0.01em;
}

h2 {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

section { margin-top: 4rem; }
section p { margin: 0; }

@media (min-width: 800px) {
  main:not(.legal) {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 4rem;
    align-content: center;
  }
  main:not(.legal) > header { grid-column: 1 / -1; }
  main:not(.legal) > section { margin-top: 0; align-self: end; }
}

/* Rechtstexte */
.legal > * { max-width: 640px; }
.legal { justify-content: flex-start; padding-top: 4rem; }
.legal h1 { font-size: clamp(2rem, 7vw, 2.75rem); margin-bottom: 2.5rem; }
.legal h2 {
  margin: 2.25rem 0 0.4rem;
  font-size: 1.0625rem;
  letter-spacing: 0;
  text-transform: none;
  color: var(--text);
}
.legal p { margin: 0 0 0.75rem; }
.back { align-self: flex-start; margin-bottom: 2.5rem; font-size: 0.9375rem; }

footer {
  padding-top: 1.5rem;
  padding-bottom: 2.5rem;
  font-size: 0.875rem;
  color: var(--muted);
}

footer .col {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

footer p { margin: 0; }
footer ul { display: flex; gap: 1.75rem; margin: 0; padding: 0; list-style: none; }
footer a { color: var(--muted); }
footer a:hover { color: var(--accent); }

@keyframes fade-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

main > * { animation: fade-in 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) both; }
main > :nth-child(2) { animation-delay: 0.12s; }
main > :nth-child(3) { animation-delay: 0.24s; }
.legal > * { animation: none; }

@media (prefers-reduced-motion: reduce) {
  main > * { animation: none; }
}

/* ===== Alternative 2: helle Konstruktionszeichnung als Hintergrund ===== */
:root {
  --bg: #f4f3ef;
  --veil: 244, 243, 239;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1113; --veil: 15, 17, 19; }
}
body { position: relative; isolation: isolate; }
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background: url("bg.svg") center / cover no-repeat;
}
@media (prefers-color-scheme: dark) {
  body::before { filter: invert(1) hue-rotate(180deg) brightness(0.75); }
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(var(--veil), 0.95) 0%, rgba(var(--veil), 0.65) 40%, rgba(var(--veil), 0) 100%);
  backdrop-filter: blur(1.5px);
}
h1 { font-weight: 500; }
.lead { max-width: 24ch; }
section { padding-left: 1.5rem; border-left: 2px solid var(--accent); }
section p a { font-size: 1.25rem; font-weight: 500; }
footer .col { border-top-color: var(--line); }

/* ===== Startseite: animierte Zeichnung (Inline-SVG) ===== */
:root { --draw: #2a4a73; --art: 1; }
@media (prefers-color-scheme: dark) {
  :root { --draw: #93b4e0; --art: 0.5; }
}
.home::before { display: none; }
.bgart {
  position: fixed;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: var(--art);
}
.bgart .draw { fill: none; stroke: var(--draw); stroke-linecap: round; stroke-linejoin: round; }
.bgart .grid { stroke-width: 0.5; stroke-opacity: 0.19; }
.bgart .major { stroke-width: 0.6; stroke-opacity: 0.42; }
.bgart .arcs { stroke-width: 0.7; stroke-opacity: 0.66; }
.bgart .axis, .bgart .ticks { stroke-width: 0.7; stroke-opacity: 0.95; }
.bgart .traces { stroke-width: 0.8; stroke-opacity: 0.55; }
.bgart .flow { stroke-width: 1.6; stroke-opacity: 0.95; stroke-dasharray: 4 96; }
.bgart .nodes { stroke-width: 0.8; stroke-opacity: 0.85; }
.bgart .nodes .end { fill: var(--bg); }
.bgart .wave { stroke-width: 1; stroke-opacity: 0.95; }
.bgart .dims { stroke-width: 0.6; stroke-opacity: 0.95; }

@keyframes art-spin { to { transform: rotate(360deg); } }
@keyframes art-flow { to { stroke-dashoffset: -100; } }
@keyframes art-pulse { 0%, 100% { stroke-opacity: 0.35; } 50% { stroke-opacity: 0.95; } }
@keyframes art-wave { to { transform: translateX(-400px); } }

.bgart .arcs, .bgart .ticks { transform-origin: 1150px 430px; }
.bgart .a1 { animation: art-spin 240s linear infinite; }
.bgart .a2 { animation: art-spin 150s linear infinite reverse; }
.bgart .ticks { animation: art-spin 320s linear infinite; }
.bgart .flow path { animation: art-flow 10s linear infinite; }
.bgart .flow path:nth-child(3n) { animation-duration: 14s; animation-delay: -3s; }
.bgart .flow path:nth-child(3n+1) { animation-duration: 8s; animation-delay: -5s; }
.bgart .flow path:nth-child(4n) { animation-direction: reverse; }
.bgart .nodes { animation: art-pulse 5s ease-in-out infinite; }
.bgart .wave { animation: art-wave 22s linear infinite; }

@media (prefers-reduced-motion: reduce) {
  .bgart *, .bgart { animation: none !important; }
}