/* IT.CHANGE — statisches Redesign
   Palette: Ink #2b2b2b, Paper #ffffff, Brand-Rot #c81e1e, Rotton #f6e9e8, Rahmen #e3e0da */

:root {
  --ink: #2b2b2b;
  --ink-soft: #5b5b5b;
  --paper: #ffffff;
  --paper-tint: #faf9f7;
  --red: #c81e1e;
  --red-deep: #9c1717;
  --red-tint: #f6e9e8;
  --border: #e3e0da;
  --serif: Georgia, "Times New Roman", serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  font-size: 17px;
}

img { max-width: 100%; display: block; }

a { color: var(--red-deep); text-decoration: none; }
a:hover { text-decoration: underline; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--red);
  color: #fff;
  padding: 10px 16px;
  z-index: 100;
}
.skip-link:focus { left: 0; }

:focus-visible {
  outline: 3px solid var(--red);
  outline-offset: 2px;
}

.wrap {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 28px;
}

/* Header */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 22px 0;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand img { height: 78px; width: auto; }
nav.main-nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
nav.main-nav a {
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  padding-bottom: 3px;
}
nav.main-nav a:hover { color: var(--red); text-decoration: none; border-color: var(--red); }

/* Hero */
.hero {
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--border);
}
.hero h1 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.3rem, 2.4vw, 1.7rem);
  letter-spacing: 0.01em;
  line-height: 1.5;
  max-width: 900px;
  margin: 0 auto 34px;
  text-align: center;
  color: var(--ink-soft);
}
.hero h1 .accent { color: var(--ink-soft); }

.offer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
  margin-top: 10px;
}
.offer-card {
  border: 1px solid var(--border);
  border-top: 3px solid var(--red);
  padding: 22px 20px;
  background: var(--paper-tint);
}
.offer-card h3 {
  font-family: var(--serif);
  font-size: 1.15rem;
  margin: 0 0 10px;
}
.offer-card p { margin: 0; color: var(--ink-soft); font-size: 0.96rem; }

.hero-cta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: center;
  gap: 22px;
  margin-top: 30px;
}
.hero-cta .btn { justify-self: start; }
.btn {
  display: inline-block;
  background: var(--red);
  color: #fff;
  padding: 12px 26px;
  font-weight: 700;
  border: 1px solid var(--red);
  flex-shrink: 0;
}
.btn:hover { background: var(--red-deep); border-color: var(--red-deep); text-decoration: none; }
.hero-cta-text {
  grid-column: 2 / 4;
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.08rem;
  max-width: none;
  text-align: justify;
  text-justify: inter-word;
}

/* Section headings */
.section { padding: 56px 0; border-bottom: 1px solid var(--border); }
.section:last-of-type { border-bottom: none; }
.section h2 {
  font-family: var(--serif);
  font-size: 1.7rem;
  margin: 0 0 8px;
}
.section .kicker {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--red);
  margin: 0 0 6px;
}
.section-intro { color: var(--ink-soft); max-width: 640px; margin: 0 0 34px; }

/* Article/teaser grid */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
}
.post-card { border: 1px solid var(--border); background: var(--paper-tint); display: flex; flex-direction: column; }
.post-card img { aspect-ratio: 16/10; object-fit: cover; width: 100%; }
.post-card img.contain {
  object-fit: contain;
  background: var(--paper);
  padding: 0;
}
.article-figure.contain {
  object-fit: contain;
  background: var(--paper-tint);
  padding: 18px;
}
.post-card-body { padding: 18px 20px 22px; display: flex; flex-direction: column; flex: 1; }
.post-card h3 { font-family: var(--serif); font-size: 1.08rem; margin: 0 0 10px; line-height: 1.35; }
.post-card p { color: var(--ink-soft); font-size: 0.93rem; margin: 0 0 16px; flex: 1; }
.post-card .read-more { font-weight: 700; font-size: 0.88rem; }

/* About */
.about-layout { display: grid; grid-template-columns: 220px 1fr; gap: 40px; align-items: start; }
.about-layout img { border: 1px solid var(--border); }
.about-layout p { margin-top: 0; text-align: justify; text-justify: inter-word; }
@media (max-width: 640px) { .about-layout { grid-template-columns: 1fr; } .about-layout img { width: 160px; } }

/* Timeline */
.timeline { list-style: none; padding: 0; margin: 0; border-left: 2px solid var(--red-tint); }
.timeline li { padding: 0 0 22px 22px; position: relative; }
.timeline li::before {
  content: "";
  position: absolute;
  left: -6px; top: 4px;
  width: 10px; height: 10px;
  background: var(--red);
  border-radius: 50%;
}
.timeline .years { font-weight: 700; font-family: var(--serif); display: block; margin-bottom: 2px; }
.timeline .desc { color: var(--ink-soft); font-size: 0.95rem; }

/* Lists */
.plain-list { padding-left: 20px; color: var(--ink-soft); }
.plain-list li { margin-bottom: 8px; }

/* Expandable project entries */
.project-list { display: flex; flex-direction: column; gap: 14px; }
.project-item {
  border: 1px solid var(--border);
  border-left: 3px solid var(--red);
  background: var(--paper-tint);
  padding: 4px 20px;
}
.project-item summary {
  cursor: pointer;
  padding: 14px 0;
  font-weight: 700;
  color: var(--ink);
  list-style: none;
  position: relative;
  padding-right: 30px;
}
.project-item summary::-webkit-details-marker { display: none; }
.project-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 12px;
  color: var(--red);
  font-size: 1.3rem;
  font-weight: 700;
  line-height: 1;
}
.project-item[open] summary::after { content: "\2212"; }
.project-item[open] summary { border-bottom: 1px solid var(--border); }
.project-body { padding: 16px 0 18px; color: var(--ink-soft); font-size: 0.95rem; }
.project-body p { margin: 0 0 12px; }
.project-body ul { margin: 0 0 12px; }
.project-item-static {
  padding: 14px 20px;
  font-weight: 700;
  color: var(--ink);
}
.timeline-toggle summary h2 { margin: 0; font-family: var(--serif); color: var(--ink); }
.timeline-toggle .timeline { border-left: 2px solid var(--red-tint); margin: 6px 0 0; }

/* Contact */
.contact-block { display: grid; grid-template-columns: 1fr; gap: 40px; }
.contact-card { border: 1px solid var(--border); padding: 26px; background: var(--paper-tint); }
.contact-card h3 { font-family: var(--serif); margin-top: 0; }
.contact-card dl { margin: 0; }
.contact-card dt { font-weight: 700; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--red-deep); margin-top: 14px; }
.contact-card dd { margin: 2px 0 0; }

/* Partners */
.partners { display: flex; gap: 30px; align-items: center; flex-wrap: wrap; margin-top: 10px; }
.partners img { max-height: 60px; width: auto; }

/* Article page */
.article-hero { padding: 46px 0 20px; }
.article-hero .kicker { color: var(--red); font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.78rem; }
.article-hero h1 { font-family: var(--serif); font-size: clamp(1.7rem, 3.4vw, 2.3rem); margin: 10px 0 8px; line-height: 1.3; }
.article-meta { color: var(--ink-soft); font-size: 0.9rem; }
.article-figure { margin: 30px 0; border: 1px solid var(--border); }
.article-body { max-width: 720px; }
.article-body p { margin: 0 0 20px; }
.article-body strong { color: var(--ink); }
.back-link { display: inline-block; margin-top: 10px; font-weight: 700; }
.ai-note { font-size: 0.85rem; color: var(--ink-soft); font-style: italic; border-top: 1px solid var(--border); padding-top: 16px; margin-top: 36px; }

/* Footer */
.site-footer {
  background: transparent;
  color: var(--ink-soft);
  padding: 44px 0 30px;
  margin-top: 40px;
  font-size: 0.92rem;
  border-top: 1px solid var(--border);
}
.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.site-footer a { color: var(--red-deep); }
.footer-cols { display: flex; gap: 60px; flex-wrap: wrap; }
.footer-col h4 {
  color: var(--ink);
  font-family: var(--serif);
  font-size: 0.95rem;
  margin: 0 0 12px;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 8px; }
.footer-bottom {
  border-top: 1px solid var(--border);
  margin-top: 30px;
  padding-top: 18px;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

@media (max-width: 640px) {
  .site-header .wrap { flex-direction: column; align-items: flex-start; }
  nav.main-nav ul { gap: 16px 20px; }
  .hero { padding: 48px 0 40px; }
  .section { padding: 40px 0; }
}