/* BIH Baugesellschaft - Corporate Stylesheet */

:root {
  --color-blue-dark: #0d2b4e;
  --color-blue: #17497e;
  --color-orange: #e8720c;
  --color-orange-dark: #c25e08;
  --color-gray-100: #f5f6f7;
  --color-gray-300: #d8dce0;
  --color-gray-600: #5a6672;
  --color-gray-900: #1c2530;
  --font-main: 'Segoe UI', Arial, Helvetica, sans-serif;
  --max-width: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-main);
  color: var(--color-gray-900);
  line-height: 1.6;
  background: #fff;
}

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

a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Topbar */
.topbar {
  background: var(--color-blue-dark);
  color: #cfd9e6;
  font-size: 0.85rem;
}
.topbar .container {
  display: flex;
  justify-content: flex-end;
  gap: 24px;
  padding-top: 6px;
  padding-bottom: 6px;
}
.topbar a:hover { color: #fff; }
.topbar a { display: inline-flex; align-items: center; gap: 6px; }
.topbar .container { justify-content: space-between; }
.topbar-contact { display: flex; gap: 24px; }
.lang-switch { display: inline-flex; align-items: center; }
.lang-switch a { font-weight: 700; letter-spacing: 0.5px; }
.lang-switch a.active { color: #fff; text-decoration: underline; }
.lang-switch .sep { margin: 0 8px; opacity: 0.5; }
.contact-info .item .icon,
.card .icon {
  font-size: 1.1rem;
}

/* Header / Nav */
header.site-header {
  background: #fff;
  border-bottom: 4px solid var(--color-orange);
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
}
.logo {
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--color-blue-dark);
  line-height: 1.2;
}
.logo span {
  display: block;
  font-weight: 400;
  font-size: 0.7rem;
  color: var(--color-gray-600);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
nav.main-nav ul {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
}
nav.main-nav a {
  display: inline-block;
  padding: 10px 16px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-blue-dark);
  border-radius: 4px;
  transition: background 0.15s, color 0.15s;
}
nav.main-nav a:hover,
nav.main-nav a.active {
  background: var(--color-orange);
  color: #fff;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--color-blue-dark) 0%, var(--color-blue) 100%);
  color: #fff;
  padding: 90px 24px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 340px;
  height: 340px;
  background: var(--color-orange);
  opacity: 0.15;
  border-radius: 50%;
}
.hero .container { position: relative; z-index: 1; }
.hero h1 {
  font-size: 2.4rem;
  max-width: 720px;
  margin: 0 0 20px;
}
.hero p {
  max-width: 600px;
  font-size: 1.1rem;
  color: #d9e3f0;
  margin-bottom: 32px;
}
.btn {
  display: inline-block;
  background: var(--color-orange);
  color: #fff;
  padding: 14px 30px;
  font-weight: 700;
  border-radius: 4px;
  transition: background 0.15s;
}
.btn:hover { background: var(--color-orange-dark); }
.btn-outline {
  background: transparent;
  border: 2px solid #fff;
  margin-left: 14px;
}
.btn-outline:hover { background: #fff; color: var(--color-blue-dark); }

/* Page header (inner pages) */
.page-hero {
  background: linear-gradient(135deg, var(--color-blue-dark) 0%, var(--color-blue) 100%);
  color: #fff;
  padding: 60px 24px;
}
.page-hero h1 { margin: 0 0 8px; font-size: 2rem; }
.breadcrumb { color: #b9c8db; font-size: 0.9rem; }
.breadcrumb a:hover { color: #fff; }

/* Sections */
section { padding: 70px 0; }
section.alt { background: var(--color-gray-100); }
h2.section-title {
  font-size: 1.9rem;
  color: var(--color-blue-dark);
  margin-bottom: 10px;
  position: relative;
  padding-left: 18px;
  border-left: 5px solid var(--color-orange);
}
p.section-sub {
  color: var(--color-gray-600);
  max-width: 680px;
  margin-bottom: 40px;
}

/* Cards grid */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.card {
  background: #fff;
  border: 1px solid var(--color-gray-300);
  border-radius: 6px;
  padding: 30px 26px;
  transition: transform 0.15s, box-shadow 0.15s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(13,43,78,0.12);
}
.card .tag {
  display: inline-block;
  background: var(--color-gray-100);
  color: var(--color-blue-dark);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 3px;
  margin-left: 10px;
}
.card .icon {
  width: 52px;
  height: 52px;
  background: var(--color-orange);
  color: #fff;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 18px;
}
.card h3 {
  color: var(--color-blue-dark);
  margin: 0 0 10px;
  font-size: 1.15rem;
}
.card p { color: var(--color-gray-600); font-size: 0.95rem; margin: 0; }

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: center;
}
.stats .stat-num {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-orange);
}
.stats .stat-label {
  color: var(--color-gray-600);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Two column */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.two-col img {
  border-radius: 6px;
  box-shadow: 0 12px 30px rgba(13,43,78,0.15);
}
.stock-img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  border-radius: 6px;
  box-shadow: 0 12px 30px rgba(13,43,78,0.15);
}
.two-col ul {
  padding-left: 20px;
  color: var(--color-gray-600);
}
.two-col ul li { margin-bottom: 10px; }

/* Placeholder image block */
.img-placeholder {
  background: var(--color-gray-300);
  color: var(--color-gray-600);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font-size: 0.9rem;
  min-height: 260px;
  text-align: center;
  padding: 20px;
}

/* Team / reference cards */
.ref-card {
  border: 1px solid var(--color-gray-300);
  border-radius: 6px;
  overflow: hidden;
  background: #fff;
}
.ref-card .img-placeholder { min-height: 180px; border-radius: 0; }
.ref-card .ref-body { padding: 20px 22px; }
.ref-card h3 { color: var(--color-blue-dark); margin: 0 0 6px; font-size: 1.1rem; }
.ref-card .tag {
  display: inline-block;
  background: var(--color-gray-100);
  color: var(--color-blue-dark);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 3px;
  margin-bottom: 10px;
}
.ref-card p { color: var(--color-gray-600); font-size: 0.92rem; }

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}
.contact-info .item {
  display: flex;
  gap: 16px;
  margin-bottom: 26px;
}
.contact-info .item .icon {
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  background: var(--color-orange);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}
.contact-info h4 { margin: 0 0 4px; color: var(--color-blue-dark); }
.contact-info p { margin: 0; color: var(--color-gray-600); }

form.contact-form {
  background: var(--color-gray-100);
  padding: 32px;
  border-radius: 6px;
  border: 1px solid var(--color-gray-300);
}
form.contact-form label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
  color: var(--color-gray-900);
}
form.contact-form input,
form.contact-form textarea,
form.contact-form select {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--color-gray-300);
  border-radius: 4px;
  margin-bottom: 18px;
  font-family: inherit;
  font-size: 0.95rem;
}
form.contact-form button {
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
}
form.contact-form button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 20px;
}
.form-hint {
  margin: -12px 0 18px;
  font-size: 0.82rem;
  color: var(--color-gray-600);
}
.form-status {
  margin-top: 16px;
  font-weight: 600;
  font-size: 0.95rem;
}
.form-status.success { color: #1e7e34; }
.form-status.error { color: #b3261e; }
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}
@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; }
}

.map-placeholder {
  min-height: 320px;
  margin-top: 10px;
}

/* City grid */
.city-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.city-card {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(13,43,78,0.12);
}
.city-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}
.city-card span {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(0deg, rgba(13,43,78,0.85), transparent);
  color: #fff;
  font-weight: 700;
  padding: 30px 14px 12px;
  font-size: 1rem;
}
@media (max-width: 900px) {
  .city-grid { grid-template-columns: repeat(2, 1fr); }
}

/* CTA band */
.cta-band {
  background: var(--color-orange);
  color: #fff;
  text-align: center;
  padding: 50px 24px;
}
.cta-band h2 { margin: 0 0 12px; font-size: 1.8rem; }
.cta-band .btn { background: var(--color-blue-dark); }
.cta-band .btn:hover { background: var(--color-gray-900); }

/* Footer */
footer.site-footer {
  background: var(--color-gray-900);
  color: #b7c0ca;
  padding: 50px 0 20px;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 32px;
  margin-bottom: 30px;
}
.footer-grid h4 {
  color: #fff;
  margin: 0 0 16px;
  font-size: 1rem;
}
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid ul li { margin-bottom: 8px; }
.footer-grid a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid #33404d;
  padding-top: 18px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.82rem;
  color: #8894a1;
}

/* Responsive */
@media (max-width: 900px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
  .two-col, .contact-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .nav-wrap { flex-direction: column; gap: 14px; }
  nav.main-nav ul { flex-wrap: wrap; justify-content: center; }
  .grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 1.8rem; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* Standorte / locations page */
.standorte-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}

.germany-map svg {
  width: 100%;
  max-width: 480px;
  height: auto;
  display: block;
  margin: 0 auto;
}

.germany-map .land path {
  fill: var(--color-gray-100);
  stroke: var(--color-blue-dark);
  stroke-width: 1.2;
}

.germany-map .marker circle {
  fill: var(--color-orange);
  stroke: #fff;
  stroke-width: 2.5;
}

.germany-map .marker.hq circle { fill: var(--color-blue-dark); }

.germany-map .marker text {
  font-family: var(--font-main);
  font-size: 17px;
  font-weight: 600;
  fill: var(--color-gray-900);
}

.germany-map .marker text.tag {
  font-size: 12px;
  font-weight: 400;
  fill: var(--color-gray-600);
  text-transform: uppercase;
  letter-spacing: .5px;
}

@media (max-width: 860px) {
  .standorte-grid { grid-template-columns: 1fr; }
}

/* OpenStreetMap embed on the contact page */
.map-embed {
  width: 100%;
  height: 420px;
  border: 0;
  border-radius: 8px;
  display: block;
}

.map-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--color-gray-600);
}

/* Service detail blocks (Leistungen page) */
.service-detail {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 40px;
  padding: 40px 0;
  border-top: 1px solid var(--color-gray-300);
  scroll-margin-top: 20px;
}
.service-detail:first-of-type { border-top: 0; }
.service-detail h3 {
  color: var(--color-blue-dark);
  font-size: 1.3rem;
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.service-detail h3 i { color: var(--color-orange); }
.service-detail p { color: var(--color-gray-600); margin: 0 0 12px; }
.service-box {
  background: #fff;
  border: 1px solid var(--color-gray-300);
  border-radius: 6px;
  padding: 24px 26px;
  align-self: start;
}
.service-box h4 {
  margin: 0 0 14px;
  color: var(--color-blue-dark);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.5px;
}
.service-box ul { list-style: none; margin: 0; padding: 0; }
.service-box li {
  display: flex;
  gap: 10px;
  margin-bottom: 9px;
  color: var(--color-gray-600);
  font-size: 0.95rem;
}
.service-box li i { color: var(--color-orange); margin-top: 5px; font-size: 0.85rem; }
.card-more {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-orange);
}
.card-more:hover { color: var(--color-orange-dark); }

/* FAQ (Leistungen page) */
.faq details {
  background: #fff;
  border: 1px solid var(--color-gray-300);
  border-radius: 6px;
  margin-bottom: 12px;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--color-blue-dark);
  padding: 16px 20px;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--color-orange);
  transition: transform 0.15s;
}
.faq details[open] summary::after { transform: rotate(180deg); }
.faq details p { padding: 0 20px 16px; margin: 0; color: var(--color-gray-600); }

@media (max-width: 860px) {
  .service-detail { grid-template-columns: 1fr; }
}