@font-face { font-family: 'IBM Plex Mono'; src: url('fonts/IBMPlexMono-Light.ttf') format('truetype'); font-weight: 300; font-style: normal; font-display: swap; }
@font-face { font-family: 'IBM Plex Mono'; src: url('fonts/IBMPlexMono-Regular.ttf') format('truetype'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'IBM Plex Mono'; src: url('fonts/IBMPlexMono-SemiBold.ttf') format('truetype'); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: 'Crimson Pro'; src: url('fonts/CrimsonPro-Light.ttf') format('truetype'); font-weight: 300; font-style: normal; font-display: swap; }
@font-face { font-family: 'Crimson Pro'; src: url('fonts/CrimsonPro-Regular.ttf') format('truetype'); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: 'Crimson Pro'; src: url('fonts/CrimsonPro-SemiBold.ttf') format('truetype'); font-weight: 600; font-style: normal; font-display: swap; }

:root {
  --bg: #ffffff;
  --text: #000000;
  --line: #000000;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1A1A1A;
    --text: #E8E8E8;
    --line: #404040;
  }
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Crimson Pro', serif;
  font-size: 18px;
  line-height: 1.6;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
}

h1, h2, .back, footer, .language-switcher { font-family: 'IBM Plex Mono', monospace; }

.container { max-width: 800px; margin: 0 auto; padding: 80px 40px; }

.back {
  display: inline-block;
  margin-bottom: 40px;
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text);
  text-decoration: none;
  opacity: 0.6;
}
.back:hover { opacity: 1; }

h1 { font-size: 28px; font-weight: 600; margin-bottom: 32px; }
h2 { font-size: 14px; font-weight: 600; letter-spacing: 0.05em; text-transform: uppercase; margin: 36px 0 12px; }
p { margin-bottom: 14px; }
a { color: var(--text); }

.language-switcher {
  position: fixed;
  top: 40px;
  right: 40px;
  display: flex;
  gap: 12px;
  font-size: 12px;
  letter-spacing: 0.05em;
  z-index: 100;
}
.language-switcher button {
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 0;
  font-family: inherit;
  font-size: inherit;
  letter-spacing: inherit;
  opacity: 0.4;
  text-transform: uppercase;
}
.language-switcher button:hover { opacity: 0.7; }
.language-switcher button.active { opacity: 1; font-weight: 600; text-decoration: underline; text-underline-offset: 4px; }
.language-switcher .separator { opacity: 0.3; }

[lang="en"].lang-block { display: none; }
body.en [lang="en"].lang-block { display: block; }
body.en [lang="de"].lang-block { display: none; }

footer {
  margin-top: 60px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  text-align: center;
  font-size: 12px;
}
footer a { text-decoration: none; opacity: 0.6; }
footer a:hover { opacity: 1; }
footer .sep { opacity: 0.3; margin: 0 8px; }

@media (max-width: 768px) {
  .container { padding: 60px 24px; }
  .language-switcher { top: 20px; right: 24px; }
}