/* Layout: linksbündig, ruhiges Datenblatt-Raster — Beschriftungsspalte links, Inhalt rechts, max. 1080 px */
@font-face { font-family: "Source Serif 4"; src: url("fonts/source-serif-4-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "Source Serif 4"; src: url("fonts/source-serif-4-latin-400-italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "Source Serif 4"; src: url("fonts/source-serif-4-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2"); font-weight: 500; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2"); font-weight: 400; font-display: swap; }

:root {
  --paper: #f5f6f7;
  --surface: #ffffff;
  --ink: #18222c;
  --muted: #56616c;
  --rule: #d6dbe0;
  --accent: #2b5566;
  --accent-soft: #e2eaee;

  --f-display: "Source Serif 4", Georgia, "Times New Roman", serif;
  --f-body: "IBM Plex Sans", "Segoe UI", Helvetica, Arial, sans-serif;
  --f-mono: "IBM Plex Mono", Consolas, "Courier New", monospace;

  --s-xs: 0.8125rem;
  --s-sm: 0.9375rem;
  --s-md: 1.0625rem;
  --s-lg: 1.375rem;
  --s-xl: 2rem;
  --s-xxl: clamp(2.25rem, 1.4rem + 3.4vw, 3.5rem);

  --wrap: 68rem;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #10161c; --surface: #161f28; --ink: #e6eaee; --muted: #9ba7b2;
    --rule: #28333e; --accent: #8db5c5; --accent-soft: #1b2b34; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #10161c; --surface: #161f28; --ink: #e6eaee; --muted: #9ba7b2;
  --rule: #28333e; --accent: #8db5c5; --accent-soft: #1b2b34; color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--f-body);
  font-size: var(--s-md);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}

/* Kopfzeile */
.site-head { border-bottom: 1px solid var(--rule); background: var(--paper); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-block: 1.1rem; }
.wordmark { font-family: var(--f-display); font-size: var(--s-lg); font-weight: 600; color: var(--ink); text-decoration: none; letter-spacing: 0.01em; }
.site-nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.site-nav a { color: var(--muted); text-decoration: none; font-size: var(--s-sm); font-weight: 500; }
.site-nav a:hover { color: var(--ink); }

/* Einstieg */
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: center; padding-block: clamp(3rem, 7vw, 5.5rem); }
.eyebrow { font-family: var(--f-mono); font-size: var(--s-xs); letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); margin: 0 0 1.25rem; }
.hero h1 { font-family: var(--f-display); font-weight: 400; font-size: var(--s-xxl); line-height: 1.12; margin: 0 0 1.5rem; text-wrap: balance; letter-spacing: -0.01em; }
.hero h1 em { font-style: italic; color: var(--accent); }
.lead { font-size: var(--s-lg); line-height: 1.5; color: var(--muted); max-width: 36rem; margin: 0 0 2rem; }
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }
.btn { display: inline-block; padding: 0.7rem 1.3rem; border: 1px solid var(--ink); color: var(--ink); text-decoration: none; font-weight: 500; font-size: var(--s-sm); border-radius: 2px; }
.btn:hover { background: var(--ink); color: var(--paper); }
.btn.primary { background: var(--ink); color: var(--paper); }
.btn.primary:hover { background: var(--accent); border-color: var(--accent); }

.portrait { margin: 0; }
.portrait-frame { aspect-ratio: 4 / 5; max-width: 100%; background: var(--accent-soft); border: 1px solid var(--rule); display: grid; place-items: center; overflow: hidden; }
.portrait-frame img { width: 100%; height: 100%; object-fit: cover; }
.portrait-frame .mono-ini { font-family: var(--f-display); font-size: 4.5rem; color: var(--accent); letter-spacing: 0.04em; }
.portrait figcaption { font-family: var(--f-mono); font-size: var(--s-xs); color: var(--muted); margin-top: 0.6rem; }

/* Abschnitte */
.section { border-top: 1px solid var(--rule); }
.section > .wrap { padding-block: clamp(3rem, 6vw, 4.75rem); }
.sec-grid { display: grid; grid-template-columns: 14rem minmax(0, 1fr); gap: 2rem 3rem; }
.sec-label { font-family: var(--f-mono); font-size: var(--s-xs); letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); padding-top: 0.45rem; }
.section h2 { font-family: var(--f-display); font-weight: 400; font-size: var(--s-xl); line-height: 1.2; margin: 0 0 1.25rem; text-wrap: balance; }
.prose p { max-width: 40rem; margin: 0 0 1rem; }

.facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; margin: 2rem 0 0; padding: 0; list-style: none; border-top: 1px solid var(--rule); padding-top: 1.5rem; }
.facts dt { font-family: var(--f-mono); font-size: var(--s-xs); color: var(--muted); letter-spacing: 0.04em; margin-bottom: 0.3rem; }
.facts dd { margin: 0; font-size: var(--s-sm); font-weight: 500; }

/* Tätigkeitsfelder als Datenblatt-Zeilen */
.fields { display: grid; gap: 0; margin-top: 0.5rem; }
.field { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: 1.25rem 2.5rem; padding-block: 2rem; border-bottom: 1px solid var(--rule); }
.field:first-child { padding-top: 0.5rem; }
.field:last-child { border-bottom: 0; padding-bottom: 0; }
.field h3 { font-family: var(--f-display); font-weight: 600; font-size: var(--s-lg); line-height: 1.25; margin: 0 0 0.4rem; }
.field .role { font-size: var(--s-sm); color: var(--muted); margin: 0 0 0.9rem; }
.field .org { font-size: var(--s-sm); font-weight: 500; }
.field p { margin: 0 0 0.9rem; }
.tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.45rem; }
.tags li { font-family: var(--f-mono); font-size: var(--s-xs); color: var(--ink); background: var(--accent-soft); padding: 0.25rem 0.55rem; border-radius: 2px; }

/* Wertschöpfungskette */
.chain { list-style: none; margin: 0.5rem 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; counter-reset: step; }
.chain li { position: relative; padding: 1.4rem 1.5rem 0 0; border-top: 2px solid var(--ink); counter-increment: step; }
.chain li::before { content: counter(step, decimal-leading-zero); font-family: var(--f-mono); font-size: var(--s-xs); color: var(--accent); display: block; margin-bottom: 0.5rem; }
.chain li::after { content: ""; position: absolute; top: -6px; left: 0; width: 10px; height: 10px; background: var(--paper); border: 2px solid var(--ink); border-radius: 50%; }
.chain strong { display: block; font-family: var(--f-display); font-weight: 600; font-size: var(--s-md); margin-bottom: 0.35rem; }
.chain span { font-size: var(--s-sm); color: var(--muted); display: block; }

/* Kontakt */
.contact-box { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 2rem; align-items: start; }
.contact-line { font-family: var(--f-display); font-size: var(--s-lg); margin: 0 0 0.25rem; word-break: break-word; }
.contact-line a { color: var(--ink); }
.small { font-size: var(--s-sm); color: var(--muted); }
.social { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; border-top: 1px solid var(--rule); }
.social li { border-bottom: 1px solid var(--rule); }
.social a { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 0.85rem 0; color: var(--ink); text-decoration: none; font-weight: 500; }
.social a span { font-family: var(--f-mono); font-size: var(--s-xs); color: var(--muted); }
.social a:hover { color: var(--accent); }

/* Fußzeile */
.site-foot { border-top: 1px solid var(--rule); }
.site-foot .wrap { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-block: 1.5rem; font-size: var(--s-xs); color: var(--muted); font-family: var(--f-mono); }
.site-foot nav { display: flex; gap: 1.25rem; }
.site-foot a { color: var(--muted); }

/* Rechtstexte */
.legal > .wrap { padding-block: clamp(2.5rem, 6vw, 4rem); }
.legal article { max-width: 44rem; }
.legal h1 { font-family: var(--f-display); font-weight: 400; font-size: var(--s-xl); margin: 0 0 2rem; }
.legal h2 { font-family: var(--f-display); font-weight: 600; font-size: var(--s-lg); margin: 2.25rem 0 0.6rem; }
.legal h3 { font-size: var(--s-md); font-weight: 600; margin: 1.5rem 0 0.4rem; }
.legal p, .legal li { font-size: var(--s-sm); }
.legal p { margin: 0 0 0.8rem; }
.legal address { font-style: normal; margin-bottom: 0.8rem; font-size: var(--s-sm); }

/* Platzhalter (vor Livegang ersetzen) */
.ph { background: color-mix(in srgb, var(--accent) 16%, transparent); outline: 1px dashed var(--accent); outline-offset: 1px; }

@media (max-width: 860px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .portrait { max-width: 18rem; }
  .sec-grid { grid-template-columns: 1fr; gap: 1rem; }
  .sec-label { padding-top: 0; }
  .field { grid-template-columns: 1fr; gap: 0.5rem; }
  .chain { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 2rem; }
  .contact-box { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .facts { grid-template-columns: 1fr; }
  .chain { grid-template-columns: 1fr; }
  .site-nav { gap: 1rem; }
}