@charset "utf-8";
/* ==========================================================================
   Bertels Elektrotechnik – konsolidiertes, mobile-first Stylesheet
   Gleiches Designsystem wie freelancer-automation.de (gleicher Anbieter)
   ========================================================================== */

/* ---- Design Tokens -------------------------------------------------- */
:root {
  --color-bg:          #FAFAF8;
  --color-surface:     #FFFFFF;
  --color-ink:         #20262A;
  --color-text:        #3B4247;
  --color-text-muted:  #6B7379;
  --color-accent:      #E8622C;
  --color-accent-dark: #C34F20;
  --color-line:        #DFE1DD;
  --color-line-strong: #C7CAC5;

  --font-display: 'IBM Plex Mono', 'Courier New', monospace;
  --font-body:    'IBM Plex Sans', Arial, Geneva, sans-serif;

  --maxw: 1120px;
  --radius: 3px;
}

/* ---- Reset / Basics --------------------------------------------------- */
* { box-sizing: border-box; }

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
}

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

a { color: var(--color-accent-dark); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

hr { border: none; border-top: 1px solid var(--color-line); margin: 2rem 0; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ---- Utility Bar -------------------------------------------------------- */
.utility-bar {
  background-color: var(--color-ink);
  color: #C9CDCE;
  font-size: 0.78rem;
  padding: 6px 20px;
}
.utility-bar .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 1.25rem;
  justify-content: flex-end;
}
.utility-bar a { color: #F2C9B4; }
.utility-bar a:hover { color: var(--color-accent); }

/* ---- Hauptkopf: Logo + Navigation --------------------------------------- */
.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
}
.site-header .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0.30rem 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
}
.logo img { height: 60px; width: auto; }

.main-nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.6rem;
  margin: 0;
  padding: 0;
}
.main-nav a {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text);
  padding: 0.4rem 0;
  border-bottom: 2px solid transparent;
}
.main-nav a[aria-current=page] {
  color: var(--color-accent-dark);
  border-bottom-color: var(--color-accent);
  font-weight: 600;
}
.main-nav a:hover, .main-nav a:focus-visible {
  color: var(--color-accent-dark);
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

/* ---- Leistungen-Subnavigation (Unterseiten) ----------------------------- */
.subnav {
  background-color: var(--color-ink);
}
.subnav ul {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.2rem 1.6rem;
}
.subnav a {
  display: inline-block;
  padding: 0.7rem 0;
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #C9CDCE;
  border-bottom: 2px solid transparent;
}
.subnav a[aria-current=page] {
  color: #fff;
  border-bottom-color: var(--color-accent);
  cursor: default;
  pointer-events: none;
}
.subnav a:hover, .subnav a:focus-visible {
  color: #fff;
  border-bottom-color: var(--color-accent);
  text-decoration: none;
}

/* ---- Seiten-Hero / Page-Header ------------------------------------------ */
.page-header {
  position: relative;
  background-color: var(--color-ink);
  background-image: linear-gradient(180deg, rgba(20,24,26,0.35) 0%, rgba(20,24,26,0.85) 85%), url('bilder/banner.jpg');
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: 2.75rem 20px;
}
.page-header .inner { max-width: var(--maxw); margin: 0 auto; }
.page-header.page-header--hero { padding: 3.5rem 20px 2.75rem; }

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 1.00rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 0.75rem;
  border-left: 3px solid var(--color-accent);
  padding-left: 0.6rem;
}
.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}
.page-header .lead {
  max-width: 46em;
  font-size: 1.02rem;
  color: #D7DAD8;
  margin: 0.9rem 0 0;
}
.crumb {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #C9CDCE;
  margin: 0 0 0.75rem;
}
.crumb a { color: #F2C9B4; }

/* ---- Layout Grundgerüst ------------------------------------------------- */
main { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

.section { padding: 1.0rem 0; }
.section + .section { border-top: 1px solid var(--color-line); }

.section h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--color-ink);
  margin: 0 0 1.25rem;
  font-weight: 600;
}
.section > p.lead {
  max-width: 62em;
  font-size: 1.02rem;
}

/* ---- Home: Leistungs-Karten ---------------------------------------------- */
.home-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 1rem;
}
@media (min-width: 620px) {
  .home-cards { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 960px) {
  .home-cards { grid-template-columns: repeat(3, 1fr); }
}
.home-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.home-card img { width: 100%; height: 160px; object-fit: cover; }
.home-card .body { padding: 1.1rem 1.2rem 1.35rem; display: flex; flex-direction: column; gap: 0.5rem; flex: 1; }
.home-card h2 { font-family: var(--font-display); font-size: 1rem; color: var(--color-ink); margin: 0; }
.home-card .accent-rule { height: 2px; width: 2.2rem; background-color: var(--color-accent); border: none; margin: 0.1rem 0 0.25rem; }
.home-card p { margin: 0; font-size: 0.92rem; color: var(--color-text); flex: 1; }
.home-card a.more {
  font-family: var(--font-display);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-accent-dark);
}

/* ---- Kompetenzen / Leistungsspektrum ------------------------------------- */
.skill-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 620px) {
  .skill-grid { grid-template-columns: 1fr 1fr; }
}
.skill-item {
  padding: 0.9rem 0 0.9rem 1rem;
  border-left: 2px solid var(--color-line-strong);
}
.skill-item strong {
  display: block;
  color: var(--color-ink);
  font-size: 0.98rem;
  margin-bottom: 0.25rem;
}
.skill-item span { font-size: 0.92rem; color: var(--color-text-muted); }

/* ---- Checklisten (Fachsysteme etc.) -------------------------------------- */
ul.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}
ul.checklist li {
  position: relative;
  padding-left: 1.15em;
  font-size: 0.95rem;
}
ul.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background-color: var(--color-accent);
}

.subsection { margin-top: 1.75rem; }
.subsection:first-of-type { margin-top: 0.25rem; }
.subsection h3 {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  font-weight: 600;
  margin: 0 0 0.6rem;
}

/* ---- Nummerierte Schritte (z.B. Retrofit-Ablauf) ------------------------- */
ol.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
  counter-reset: step;
}
ol.steps li {
  position: relative;
  padding-left: 2.6rem;
  font-size: 0.95rem;
}
ol.steps li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: -0.1rem;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---- Karten (Vorteile, Kriterien) ----------------------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.1rem;
  margin-top: 1.25rem;
}
@media (min-width: 720px) {
  .card-grid { grid-template-columns: 1fr 1fr; }
}
.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 1.25rem 1.4rem;
}
.card h3 { font-family: var(--font-display); font-size: 0.95rem; color: var(--color-ink); margin: 0 0 0.5rem; }
.card p { margin: 0; font-size: 0.95rem; color: var(--color-text); }

/* ---- Zweispaltige Sektion: Text links, Bilder rechts ---------------------- */
.section-flex {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.section-flex .text-col {
  flex: 1 1 auto;
  min-width: 0;
}
.section-flex .image-col {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 1rem;
}
.section-flex .image-col .decor-image {
  margin-top: 0;
}
@media (min-width: 780px) {
  .section-flex {
    flex-direction: row;
    align-items: flex-start;
  }
  .section-flex .image-col {
    flex: 0 0 260px;
    flex-direction: column;
  }
}

/* ---- Dekorative Bilder (aus background-image Divs) ----------------------- */
.decor-image {
  border-radius: var(--radius);
  border: 1px solid var(--color-line);
  background-size: cover;
  background-position: center;
  margin-top: 1.5rem;
}
.decor-image--s { height: 150px; width: 150px; }
.decor-image--m { height: 200px; width: 260px; }
.decor-image--l { height: 260px; width: 260px; }
.decor-image--xl { height: 260px; }
.decor-image-eplan { height: 200px; width: 141px; }

/* ---- CTA-Box (Abschluss-Aufrufe auf Unterseiten) -------------------------- */
.cta-box {
  background-color: var(--color-ink);
  color: #E4E6E5;
  border-radius: var(--radius);
  padding: 1.75rem 1.9rem;
  margin-top: 2rem;
}
.cta-box p { margin: 0 0 0.5rem; color: #D7DAD8; }
.cta-box p:last-child { margin-bottom: 0; }
.cta-box strong { color: #fff; }

/* ---- Kontaktseite --------------------------------------------------------- */
.contact-grid {
  display: grid;
  gap: 1.75rem;
  margin-top: 1.5rem;
}
@media (min-width: 720px) {
  .contact-grid { grid-template-columns: 1fr 1fr; align-items: start; }
}
.contact-details { font-size: 0.98rem; line-height: 2; }
.contact-details .label {
  display: inline-block;
  width: 4.5em;
  color: var(--color-text-muted);
  font-family: var(--font-display);
  font-size: 0.72rem;
  text-transform: uppercase;
}
.contact-actions { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-top: 1.25rem; }

.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  padding: 0.7rem 1.3rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
}
.btn-primary { background-color: var(--color-accent); color: #fff; }
.btn-primary:hover, .btn-primary:focus-visible { background-color: var(--color-accent-dark); text-decoration: none; }
.btn-secondary { border-color: var(--color-line-strong); color: var(--color-ink); }
.btn-secondary:hover, .btn-secondary:focus-visible { border-color: var(--color-ink); text-decoration: none; }

/* ---- Fließtext-Seiten (Impressum, Datenschutz) ---------------------------- */
.prose { max-width: 68ch; }
.prose h2 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--color-ink);
  margin: 2rem 0 0.6rem;
}
.prose h2:first-child { margin-top: 0; }
.prose h3 {
  font-size: 0.95rem;
  color: var(--color-ink);
  margin: 1.4rem 0 0.4rem;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.prose p { font-size: 0.95rem; color: var(--color-text); margin: 0 0 1rem; }

/* ---- Footer ---------------------------------------------------------------- */
footer.site-footer {
  border-top: 1px solid var(--color-line);
  color: var(--color-text-muted);
  font-size: 0.8rem;
  padding: 1.5rem 20px 1.75rem;
  margin-top: 2rem;
}
footer.site-footer .inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  justify-content: space-between;
  align-items: center;
}
footer.site-footer address { font-style: normal; }
footer.site-footer nav { display: flex; gap: 1.2rem; }
footer.site-footer a { color: var(--color-text-muted); }
footer.site-footer a:hover { color: var(--color-accent-dark); }

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}