/* Instandsetzung-VS — Industrial Workshop */

:root {
  --dark: #212529;
  --steel: #3a4147;
  --steel-light: #6c757d;
  --orange: #f57c00;
  --orange-dark: #d96e00;
  --paper: #f8f9fa;
  --paper-alt: #ecedef;
  --rule: #d1d5db;
  --text: #1a1d20;
  --text-muted: #495057;
  --max-w: 68rem;
  --gap: 1.5rem;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: 'Inter', 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--paper);
  background-image:
    linear-gradient(0deg, transparent 24%, rgba(58,65,71,.03) 25%, rgba(58,65,71,.03) 26%, transparent 27%, transparent 74%, rgba(58,65,71,.03) 75%, rgba(58,65,71,.03) 76%, transparent 77%),
    linear-gradient(90deg, transparent 24%, rgba(58,65,71,.03) 25%, rgba(58,65,71,.03) 26%, transparent 27%, transparent 74%, rgba(58,65,71,.03) 75%, rgba(58,65,71,.03) 76%, transparent 77%);
  background-size: 50px 50px;
}

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--orange);
  color: var(--dark);
  padding: .5rem 1rem;
  z-index: 100;
  font-weight: 700;
}
.skip-link:focus { left: 0; }

/* Header */
.site-header {
  background: var(--dark);
  color: #fff;
  border-bottom: 4px solid var(--orange);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 1rem 1.25rem;
  flex-wrap: wrap;
}
.brand {
  display: flex;
  align-items: center;
  gap: .75rem;
  text-decoration: none;
  color: #fff;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  border: 2px solid var(--orange);
  padding: 2px;
}
.brand-text {
  font-family: 'Roboto Slab', Georgia, serif;
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: .5px;
  text-transform: uppercase;
  line-height: 1;
  display: flex;
  flex-direction: column;
  gap: .15rem;
}
.brand-sub {
  color: var(--orange);
  font-size: .7rem;
  letter-spacing: 2px;
  font-weight: 600;
}
.primary-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.primary-nav a {
  color: #fff;
  text-decoration: none;
  font-size: .95rem;
  font-weight: 500;
  padding: .3rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color .15s;
}
.primary-nav a:hover,
.primary-nav a[aria-current="page"] {
  border-bottom-color: var(--orange);
  color: var(--orange);
}

/* Breadcrumbs */
.breadcrumbs {
  padding: .8rem 1.25rem;
  font-size: .85rem;
  color: var(--text-muted);
}
.breadcrumbs ol {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: .4rem;
  flex-wrap: wrap;
}
.breadcrumbs li + li::before { content: "▸ "; color: var(--orange); }
.breadcrumbs a { color: var(--steel); text-decoration: underline; }

/* Article header */
.article-header {
  padding: 2.5rem 1.25rem 1.5rem;
  max-width: var(--max-w);
  margin: 0 auto;
}
.header-tag {
  display: inline-block;
  background: var(--dark);
  color: var(--orange);
  padding: .3rem .8rem;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  margin-bottom: 1rem;
}
h1 {
  font-family: 'Roboto Slab', Georgia, serif;
  font-size: clamp(1.8rem, 4vw, 2.7rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--dark);
  margin: 0 0 1rem;
  letter-spacing: -.5px;
}
.lede {
  font-size: 1.15rem;
  line-height: 1.55;
  color: var(--text-muted);
  border-left: 4px solid var(--orange);
  padding-left: 1rem;
  margin: 1rem 0;
}
.byline {
  font-size: .85rem;
  color: var(--steel-light);
  letter-spacing: .5px;
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  text-transform: uppercase;
  margin-top: 1rem;
}
.byline .tool-icon { color: var(--orange); }
.byline .author { color: var(--dark); font-weight: 700; }

/* Hero */
.hero {
  padding: 0 1.25rem;
  margin: 1.5rem auto 2rem;
}
.hero img {
  display: block;
  width: 100%;
  height: auto;
  border: 4px solid var(--dark);
  outline: 1px solid var(--orange);
  outline-offset: 2px;
}
.hero figcaption {
  font-size: .85rem;
  color: var(--text-muted);
  padding-top: .6rem;
  border-bottom: 1px solid var(--rule);
  padding-bottom: .8rem;
  font-style: italic;
}

/* Prose */
.prose {
  max-width: 42rem;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}
.prose h2 {
  font-family: 'Roboto Slab', Georgia, serif;
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--dark);
  margin: 2.5rem 0 1rem;
  padding-left: 1rem;
  border-left: 6px solid var(--orange);
  line-height: 1.2;
}
.prose h3 {
  font-family: 'Roboto Slab', Georgia, serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--steel);
  margin: 1.6rem 0 .6rem;
  line-height: 1.3;
}
.prose p { margin: 0 0 1rem; }
.prose a { color: var(--orange-dark); text-decoration: underline; text-underline-offset: 3px; }
.prose a:hover { color: var(--dark); background: var(--orange); text-decoration-color: var(--dark); }
.prose strong { color: var(--dark); font-weight: 700; }
.prose em { font-style: italic; color: var(--steel); }
.prose ul, .prose ol { margin: 0 0 1.2rem; padding-left: 1.4rem; }
.prose li { margin-bottom: .3rem; }
.prose li::marker { color: var(--orange); }

/* Callouts */
.callout {
  padding: 1.2rem 1.4rem;
  margin: 1.8rem 0;
}
.callout-orange {
  background: #fff8ee;
  border: 2px solid var(--orange);
  border-left-width: 6px;
}
.callout-dark {
  background: var(--dark);
  color: #fff;
  border-left: 6px solid var(--orange);
}
.callout-dark h3 {
  color: var(--orange);
  margin: 0 0 .5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: .9rem;
  font-family: 'JetBrains Mono', 'Consolas', monospace;
}
.callout-dark p {
  font-style: italic;
  font-size: 1.05rem;
  margin: 0 0 .5rem;
}
.callout-dark cite {
  font-style: normal;
  font-size: .8rem;
  color: var(--orange);
  letter-spacing: .5px;
}

/* Pullquote */
.pullquote {
  padding: 1.5rem;
  margin: 2rem 0;
  border-top: 3px solid var(--dark);
  border-bottom: 3px solid var(--dark);
}
.pullquote blockquote {
  font-size: 1.15rem;
  font-style: italic;
  margin: 0 0 .5rem;
  color: var(--dark);
  font-family: 'Roboto Slab', Georgia, serif;
  line-height: 1.4;
}
.pullquote cite {
  display: block;
  font-size: .8rem;
  color: var(--steel-light);
  letter-spacing: 1px;
  text-transform: uppercase;
  font-style: normal;
  font-family: 'JetBrains Mono', 'Consolas', monospace;
}

/* TOC */
.toc {
  background: var(--paper-alt);
  border: 1px solid var(--rule);
  padding: 1.2rem 1.4rem;
  margin: 1.5rem 0 2rem;
}
.toc h2 {
  margin: 0 0 .6rem;
  padding: 0;
  border: none;
  font-size: .8rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--steel);
  font-family: 'JetBrains Mono', 'Consolas', monospace;
}
.toc ol {
  columns: 2;
  column-gap: 2rem;
  margin: 0;
  padding-left: 1.5rem;
  font-size: .9rem;
}
.toc li { margin-bottom: .3rem; break-inside: avoid; }
.toc a { color: var(--dark); text-decoration: none; }
.toc a:hover { color: var(--orange-dark); text-decoration: underline; }

/* Inline figure */
.inline-figure {
  margin: 2rem 0;
  padding: 0;
}
.inline-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 2px solid var(--steel);
}
.inline-figure figcaption {
  font-size: .82rem;
  color: var(--text-muted);
  padding-top: .5rem;
  font-style: italic;
}

/* FAQ details */
.prose details {
  border: 1px solid var(--rule);
  background: #fff;
  padding: 0;
  margin-bottom: .6rem;
}
.prose summary {
  padding: 1rem 1.2rem;
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  color: var(--dark);
  font-family: 'Roboto Slab', Georgia, serif;
  position: relative;
  padding-right: 3rem;
}
.prose summary::-webkit-details-marker { display: none; }
.prose summary::after {
  content: "+";
  position: absolute;
  right: 1.2rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--orange);
  font-size: 1.5rem;
  font-weight: 400;
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  line-height: 1;
}
.prose details[open] summary::after { content: "−"; }
.prose details[open] summary {
  background: var(--paper-alt);
  border-bottom: 1px solid var(--rule);
}
.prose details > p {
  padding: 1rem 1.2rem;
  margin: 0;
}

/* Author card */
.author-card {
  background: var(--dark);
  color: #fff;
  padding: 1.5rem;
  margin: 2.5rem 0;
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 1.5rem;
  align-items: start;
  border-left: 6px solid var(--orange);
}
.author-card img {
  width: 100px;
  height: 100px;
  object-fit: cover;
  border: 3px solid var(--orange);
}
.author-card h2,
.author-card h3 {
  font-family: 'Roboto Slab', Georgia, serif;
  color: var(--orange);
  margin: 0 0 .5rem;
  padding: 0;
  border: none;
  font-size: 1.1rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.author-card p {
  font-size: .92rem;
  line-height: 1.5;
  margin: 0;
  color: #d1d5db;
}
.author-card strong { color: #fff; }

/* Disclaimer */
.disclaimer {
  background: #fff8ee;
  border: 2px dashed var(--orange);
  padding: 1.2rem 1.4rem;
  margin: 2rem 0 1rem;
}
.disclaimer h3 {
  font-family: 'Roboto Slab', Georgia, serif;
  margin: 0 0 .6rem;
  padding: 0;
  border: none;
  font-size: 1rem;
  color: var(--dark);
  letter-spacing: 1px;
  text-transform: uppercase;
}
.disclaimer p {
  font-size: .88rem;
  margin: 0;
  color: var(--text-muted);
}

/* Related block */
.related-block {
  background: var(--paper-alt);
  border: 1px solid var(--rule);
  padding: 1.2rem 1.4rem;
  margin: 2rem 0;
}
.related-block h3 {
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  margin: 0 0 .8rem;
  padding: 0;
  border: none;
  font-size: .8rem;
  color: var(--steel);
  letter-spacing: 2px;
  text-transform: uppercase;
}
.related-block ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.related-block li {
  padding: .4rem 0;
  border-bottom: 1px solid var(--rule);
}
.related-block li:last-child { border-bottom: none; }
.related-block a {
  color: var(--dark);
  text-decoration: none;
  font-weight: 500;
}
.related-block a::before {
  content: "▸ ";
  color: var(--orange);
  font-weight: 700;
}
.related-block a:hover { color: var(--orange-dark); }

/* Form */
.contact-form {
  background: #fff;
  border: 2px solid var(--dark);
  padding: 1.5rem;
  margin: 1.5rem 0;
}
.form-row {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  margin-bottom: 1rem;
}
.form-row label {
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  font-size: .75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--steel);
  font-weight: 600;
}
.form-row input,
.form-row textarea,
.form-row select {
  border: 1px solid var(--rule);
  padding: .7rem .9rem;
  font-size: 1rem;
  font-family: inherit;
  background: var(--paper);
  color: var(--text);
}
.form-row input:focus,
.form-row textarea:focus,
.form-row select:focus {
  outline: 2px solid var(--orange);
  outline-offset: 0;
  border-color: var(--orange);
}
.submit-btn {
  background: var(--dark);
  color: #fff;
  border: none;
  padding: .9rem 2rem;
  font-family: 'Roboto Slab', Georgia, serif;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  cursor: pointer;
  border-bottom: 4px solid var(--orange);
}
.submit-btn:hover { background: var(--orange); border-bottom-color: var(--dark); }

/* Footer */
.site-footer {
  background: var(--dark);
  color: #d1d5db;
  padding: 2.5rem 0 1.5rem;
  margin-top: 4rem;
  border-top: 4px solid var(--orange);
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  padding: 0 1.25rem;
  align-items: start;
}
.footer-brand {
  font-family: 'Roboto Slab', Georgia, serif;
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin: 0 0 .3rem;
}
.footer-inner p { font-size: .9rem; margin: 0; }
.footer-inner nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 1.5rem;
}
.footer-inner nav a { color: var(--orange); text-decoration: none; font-size: .9rem; }
.footer-inner nav a:hover { text-decoration: underline; }
.copyright {
  grid-column: 1 / -1;
  padding-top: 1.5rem;
  margin-top: 1.5rem;
  border-top: 1px solid #495057;
  font-size: .8rem;
  color: var(--steel-light);
  font-family: 'JetBrains Mono', 'Consolas', monospace;
  letter-spacing: 1px;
}

/* Responsive */
@media (max-width: 768px) {
  body { font-size: 16px; }
  .header-inner { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .primary-nav ul { gap: 1rem; }
  .primary-nav a { font-size: .85rem; }
  .prose { padding: 0 1rem 2rem; }
  .prose h2 { font-size: 1.35rem; }
  .toc ol { columns: 1; }
  .author-card {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .author-card img { margin: 0 auto; }
  .footer-inner { grid-template-columns: 1fr; }
}

/* Print */
@media print {
  .site-header, .primary-nav, .breadcrumbs, .site-footer, .toc, .related-block, .disclaimer, .contact-form { display: none; }
  body { background: #fff; font-size: 11pt; color: #000; }
  .container { max-width: 100%; }
  a { color: #000; text-decoration: underline; }
  h1, h2, h3 { color: #000; page-break-after: avoid; }
  .callout, .pullquote, .author-card { break-inside: avoid; }
  img { max-width: 100%; }
}