/* ============ BASIS ============ */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --primary: #FFD200;
  --primary-dark: #d4ae00;
  --dark: #1a1d23;
  --dark-2: #23272f;
  --dark-3: #2c313a;
  --light: #f4f5f7;
  --text: #333;
  --text-light: #cfd3da;
  --border: #e2e5ea;
  --font: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--text); line-height: 1.6; background: #fff; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }

.btn {
  display: inline-block; padding: 12px 28px; border-radius: 4px;
  font-weight: 600; cursor: pointer; border: none; transition: all .25s;
}
.btn-primary { background: var(--primary); color: #1a1d23; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-light { background: #fff; color: var(--dark); }
.btn-light:hover { background: var(--primary); }

.link-more { color: var(--primary-dark); font-weight: 600; }
.link-more:hover { text-decoration: underline; }

.section-kicker { color: var(--primary-dark); font-weight: 700; text-transform: uppercase; letter-spacing: 1px; font-size: .85rem; }
.section-title { font-size: 1.9rem; margin: 8px 0 24px; color: var(--dark); }
.section-subtitle { font-size: 1.3rem; color: var(--dark); margin-bottom: 16px; }

/* ============ TOPBAR ============ */
.topbar { background: var(--dark); color: var(--text-light); font-size: .9rem; }
.topbar-inner { display: flex; align-items: center; gap: 24px; padding-top: 8px; padding-bottom: 8px; }
.topbar-item:hover { color: var(--primary); }
.topbar-item .icon { margin-right: 6px; color: var(--primary); }
.topbar-search { margin-left: auto; display: flex; }
.topbar-search input {
  padding: 6px 12px; border: 1px solid var(--dark-3); border-right: none;
  background: var(--dark-2); color: #fff; border-radius: 4px 0 0 4px; width: 180px;
}
.topbar-search button {
  padding: 6px 12px; background: var(--primary); border: none;
  border-radius: 0 4px 4px 0; cursor: pointer;
}

/* ============ HEADER / NAV ============ */
.site-header { background: #fff; box-shadow: 0 2px 8px rgba(0,0,0,.08); position: sticky; top: 0; z-index: 100; }
.header-inner { display: flex; align-items: center; justify-content: space-between; }

.logo { display: flex; align-items: center; padding: 10px 0; }
.logo-img { height: 56px; width: auto; display: block; }

.main-nav > ul { display: flex; }
.main-nav > ul > li { position: relative; }
.main-nav a {
  display: block; padding: 24px 14px; font-weight: 600; font-size: .92rem;
  color: var(--dark); transition: color .2s;
}
.main-nav a:hover, .main-nav a.active { color: var(--primary-dark); }

/* Dropdown Ebene 1 */
.has-dropdown > a::after { content: " ▾"; font-size: .7rem; color: var(--primary-dark); }
.dropdown {
  position: absolute; top: 100%; left: 0; min-width: 240px;
  background: var(--dark); border-radius: 0 0 4px 4px;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all .25s; box-shadow: 0 8px 20px rgba(0,0,0,.25);
}
.has-dropdown:hover > .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a { padding: 12px 18px; color: var(--text-light); font-weight: 500; }
.dropdown a:hover { background: var(--dark-3); color: var(--primary); }

/* Dropdown Ebene 2 */
.has-sub { position: relative; }
.has-sub > a::after { content: " ▸"; float: right; }
.sub-dropdown {
  position: absolute; top: 0; left: 100%; min-width: 220px;
  background: var(--dark-2); opacity: 0; visibility: hidden;
  transform: translateX(8px); transition: all .25s;
  box-shadow: 4px 8px 20px rgba(0,0,0,.25);
}
.has-sub:hover > .sub-dropdown { opacity: 1; visibility: visible; transform: translateX(0); }

/* Hamburger */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px; background: none;
  border: none; cursor: pointer; padding: 10px;
}
.nav-toggle span { width: 26px; height: 3px; background: var(--dark); border-radius: 2px; transition: all .3s; }
.nav-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 6px); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -6px); }

/* ============ HERO SLIDER ============ */
.hero { position: relative; overflow: hidden; }
.hero-slider { position: relative; height: 520px; }
.hero-slide {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  text-align: center; color: #fff; opacity: 0; transition: opacity .8s;
  background-size: cover; background-position: center;
}
.hero-slide.active { opacity: 1; }
.hero-slide::before { content: ""; position: absolute; inset: 0; background: rgba(10,12,16,.55); }
.hero-slide[data-bg="1"] { background: #1a1d23 url('../images/slide1.jpg') center/contain no-repeat; }
.hero-slide[data-bg="2"] { background: #1a1d23 url('../images/slide2.jpg') center/contain no-repeat; }
.hero-slide[data-bg="3"] { background: #1a1d23 url('../images/slide3.jpg') center/contain no-repeat; }
.hero-slide[data-bg="4"] { background: #1a1d23 url('../images/slide4.jpg') center/contain no-repeat; }

.hero-content { position: relative; z-index: 1; padding: 0 20px; }
.hero-kicker { letter-spacing: 3px; text-transform: uppercase; color: var(--primary); font-weight: 600; }
.hero-content h1 { font-size: 3.6rem; font-weight: 800; letter-spacing: 4px; margin: 10px 0; }
.hero-sub { font-size: 1.2rem; margin-bottom: 26px; color: #e8eaee; }

.hero-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 2;
  background: rgba(255,255,255,.15); color: #fff; border: none; font-size: 1.6rem;
  width: 52px; height: 52px; border-radius: 50%; cursor: pointer; transition: background .2s;
}
.hero-arrow:hover { background: var(--primary); color: var(--dark); }
.hero-prev { left: 24px; }
.hero-next { right: 24px; }

.hero-dots { position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 2; }
.hero-dots button {
  width: 12px; height: 12px; border-radius: 50%; border: 2px solid #fff;
  background: transparent; cursor: pointer; transition: background .2s;
}
.hero-dots button.active { background: var(--primary); border-color: var(--primary); }

/* ============ FEATURES ============ */
.features { padding: 56px 0; background: var(--light); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card {
  background: #fff; padding: 28px; border-radius: 6px;
  box-shadow: 0 2px 10px rgba(0,0,0,.06); border-top: 4px solid var(--primary);
}
.feature-card h3 { margin-bottom: 10px; color: var(--dark); }
.feature-card p { margin-bottom: 14px; color: #555; }

/* ============ INTRO ============ */
.intro { padding: 64px 0; text-align: center; }
.intro-keywords { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; margin-bottom: 16px; }
.intro-keywords h2 { font-size: 2rem; color: var(--dark); letter-spacing: 2px; }
.intro-text { max-width: 820px; margin: 0 auto 28px; color: #555; font-size: 1.05rem; }

.spezial-title { margin: 40px 0 16px; color: var(--dark); }
.spezial-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; }
.spezial-list a {
  display: block; padding: 10px 20px; background: var(--light);
  border: 1px solid var(--border); border-radius: 30px; font-weight: 600; transition: all .2s;
}
.spezial-list a:hover { background: var(--primary); border-color: var(--primary); }

/* ============ BANNER ============ */
.banner { background: var(--dark); color: #fff; padding: 48px 0; }
.banner-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.banner-kicker { color: var(--primary); text-transform: uppercase; letter-spacing: 1px; font-size: .85rem; margin-bottom: 6px; }
.banner h2 { font-size: 1.8rem; }

/* ============ LEISTUNGEN / KARTEN ============ */
.leistungen { padding: 72px 0; background: var(--light); }
.card-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.card {
  background: #fff; border-radius: 6px; overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,.06); transition: transform .25s, box-shadow .25s;
}
.card:hover { transform: translateY(-5px); box-shadow: 0 10px 24px rgba(0,0,0,.12); }
.card-img { height: 160px; background-size: cover; background-position: center; position: relative; }
.card-img::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(160deg, rgba(255,210,0,.25), rgba(26,29,35,.55));
}
.card-body { padding: 20px; }
.card-body h3 { font-size: 1.05rem; margin-bottom: 8px; color: var(--dark); }
.card-body p { font-size: .9rem; color: #555; margin-bottom: 12px; min-height: 60px; }

/* Bildplatzhalter - JPGs (für echte eigene Fotos ersetzen) */
[data-img="bohren"] { background: url('../images/bohren.jpg') center/cover no-repeat; }
[data-img="saegen"] { background: url('../images/saegen.jpg') center/cover no-repeat; }
[data-img="seil"] { background: url('../images/seil.jpg') center/cover no-repeat; }
[data-img="fugen"] { background: url('../images/fugen.jpg') center/cover no-repeat; }
[data-img="rueckbau"] { background: url('../images/rueckbau.jpg') center/cover no-repeat; }
[data-img="industrie"] { background: url('../images/industrie.jpg') center/cover no-repeat; }
[data-img="teilabbruch"] { background: url('../images/teilabbruch.jpg') center/cover no-repeat; }
[data-img="bewehrung"] { background: url('../images/bewehrung.jpg') center/cover no-repeat; }

/* Galerie-Platzhalter */
[data-img="g1"] { background: linear-gradient(135deg,#374151,#6b7280); }
[data-img="g2"] { background: linear-gradient(135deg,#1f2937,#4b5563); }
[data-img="g3"] { background: linear-gradient(135deg,#111827,#374151); }
[data-img="g4"] { background: linear-gradient(135deg,#374151,#1f2937); }
[data-img="g5"] { background: linear-gradient(135deg,#4b5563,#111827); }
[data-img="g6"] { background: linear-gradient(135deg,#2c313a,#6b7280); }
[data-img="wasser"], [data-img="wasser2"] { background: linear-gradient(135deg,#0f3a52,#1f6a8f); }
[data-img="klaeranlage"] { background: linear-gradient(135deg,#2c4a5a,#111827); }
[data-img="bunker"] { background: linear-gradient(135deg,#3a3f47,#1a1d23); }
[data-img="bruecke"], [data-img="bruecke2"] { background: linear-gradient(135deg,#33404d,#5a6a7a); }
[data-img="a40"] { background: linear-gradient(135deg,#26303b,#4b5563); }
[data-img="hilti"] { background: linear-gradient(135deg,#6b2020,#a04040); }
[data-img="a1"] { background: linear-gradient(135deg,#2f4a3a,#5a7a6a); }
[data-img="muenchen"] { background: linear-gradient(135deg,#3a4a5f,#6a7a8f); }
[data-img="schleuse"] { background: linear-gradient(135deg,#264a5a,#4a7a8f); }
[data-img="rohre"] { background: linear-gradient(135deg,#3f3a2f,#6a5a4a); }
[data-img="kkh"] { background: linear-gradient(135deg,#2a3a4a,#5a6a7a); }
[data-img="seil2"] { background: linear-gradient(135deg,#1f2a3a,#4a5a6a); }
[data-img="s1"], [data-img="s2"], [data-img="s3"], [data-img="s4"] { background: linear-gradient(135deg,#2c313a,#4a5568); }

/* ============ PROJEKTE ============ */
.projekte { padding: 72px 0; }
.projekt {
  display: grid; grid-template-columns: 1fr 1fr; gap: 40px;
  align-items: center; margin-bottom: 64px;
}
.projekt.reverse .projekt-img { order: 2; }
.projekt-img { height: 320px; border-radius: 6px; background-size: cover; background-position: center; position: relative; }
.projekt-img::after { content: ""; position: absolute; inset: 0; border-radius: 6px; background: rgba(0,0,0,.15); }
.projekt-body h3 { font-size: 1.5rem; color: var(--dark); margin: 4px 0 10px; }
.projekt-body h4 { font-size: 1.1rem; color: var(--primary-dark); margin-bottom: 10px; }
.projekt-body p { color: #555; margin-bottom: 14px; }

/* Facts */
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 64px; }
.fact {
  background: var(--dark); color: #fff; text-align: center; padding: 40px 20px; border-radius: 6px;
}
.fact h3 { font-size: 1.6rem; line-height: 1.4; }

/* ============ GALERIE SLIDER ============ */
.galerie-block { margin-bottom: 64px; }
.galerie-block > p { color: #555; margin-bottom: 20px; }
.galerie-slider { position: relative; overflow: hidden; }
.galerie-track { display: flex; transition: transform .5s; }
.galerie-item { flex: 0 0 33.333%; padding: 0 8px; }
.galerie-img { height: 200px; border-radius: 6px; }
.galerie-item p { text-align: center; font-weight: 600; font-size: .9rem; padding: 10px 0; color: var(--dark); }
.galerie-arrow {
  position: absolute; top: 40%; transform: translateY(-50%);
  background: var(--dark); color: #fff; border: none; width: 44px; height: 44px;
  border-radius: 50%; cursor: pointer; font-size: 1.2rem; z-index: 2; transition: background .2s;
}
.galerie-arrow:hover { background: var(--primary); color: var(--dark); }
.galerie-prev { left: 8px; }
.galerie-next { right: 8px; }

/* Video */
.video-block { margin-top: 40px; }
.video-block h4 { margin-bottom: 14px; color: var(--dark); }
.video-placeholder {
  background: var(--dark); color: #fff; height: 340px; border-radius: 6px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 14px; cursor: pointer; transition: background .3s;
}
.video-placeholder:hover { background: var(--dark-3); }
.play-btn {
  width: 72px; height: 72px; border-radius: 50%; background: var(--primary);
  color: var(--dark); display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem; padding-left: 6px;
}

/* ============ SOCIAL ============ */
.social-feed { margin: 64px 0 0; }
.social-feed h3 { margin-bottom: 18px; color: var(--dark); }
.social-feed h3 a { color: var(--primary-dark); }
.social-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.social-item { height: 180px; border-radius: 6px; transition: transform .25s; }
.social-item:hover { transform: scale(1.03); }

/* ============ KARTE ============ */
.einzugsgebiet { padding: 72px 0; background: var(--light); }
.einzugsgebiet p { color: #555; margin-bottom: 20px; max-width: 860px; }
.map-box { border-radius: 6px; overflow: hidden; box-shadow: 0 4px 16px rgba(0,0,0,.1); }
.map-consent {
  background: #fff; padding: 40px; text-align: center;
}
.map-consent h3 { margin-bottom: 10px; color: var(--dark); }
.map-consent p { margin: 0 auto 20px; max-width: 520px; }
.map-credit { font-size: .8rem; color: #999; margin-top: 14px !important; }
#mapContainer iframe { width: 100%; height: 420px; border: 0; display: block; }

/* ============ KARRIERE ============ */
.karriere { padding: 56px 0; background: var(--light); }

/* ============ KONTAKT ============ */
.kontakt { padding: 72px 0; }
.kontakt-grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 48px; }
.kontakt-tel { font-size: 2rem; font-weight: 800; color: var(--dark); }
.kontakt-tel:hover { color: var(--primary-dark); }
.kontakt-info h3 { margin: 24px 0 8px; color: var(--dark); }
.kontakt-info p { color: #555; margin-bottom: 16px; }

.callback-form { display: flex; flex-direction: column; gap: 12px; max-width: 360px; }
.callback-form input[type="tel"] {
  padding: 12px 16px; border: 1px solid var(--border); border-radius: 4px; font-size: 1rem;
}
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; }

.kontakt-form-box { background: var(--light); padding: 32px; border-radius: 6px; }
.kontakt-form-box h3 { margin-bottom: 18px; color: var(--dark); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 14px; }
.kontakt-form-box input, .kontakt-form-box textarea {
  width: 100%; padding: 12px 16px; border: 1px solid var(--border);
  border-radius: 4px; font-size: 1rem; font-family: var(--font); background: #fff;
}
.kontakt-form-box textarea { margin-bottom: 14px; resize: vertical; }
.checkbox { display: flex; align-items: flex-start; gap: 8px; font-size: .88rem; margin-bottom: 18px; color: #555; }
.checkbox input { width: 18px; height: 18px; margin-top: 2px; flex-shrink: 0; }
.checkbox-text { flex: 1; line-height: 1.4; }
.checkbox a { color: var(--primary-dark); text-decoration: underline; }
.form-msg { font-size: .9rem; margin-top: 10px; font-weight: 600; }
.form-msg.success { color: #2a7a3a; }
.form-msg.error { color: #a03030; }

/* ============ FAQ ============ */
.faq { padding: 72px 0; background: var(--light); }
.accordion { max-width: 800px; }
.accordion-item { background: #fff; border-radius: 6px; margin-bottom: 12px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,.05); }
.accordion-header {
  width: 100%; text-align: left; padding: 18px 22px; background: none; border: none;
  font-size: 1rem; font-weight: 600; color: var(--dark); cursor: pointer; position: relative;
}
.accordion-header::after {
  content: "+"; position: absolute; right: 22px; top: 50%;
  transform: translateY(-50%); font-size: 1.4rem; color: var(--primary-dark); transition: transform .3s;
}
.accordion-item.open .accordion-header::after { transform: translateY(-50%) rotate(45deg); }
.accordion-body { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.accordion-body p { padding: 0 22px 18px; color: #555; }

/* ============ FOOTER ============ */
.site-footer { background: var(--dark); color: var(--text-light); }
.footer-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px;
  padding-top: 56px; padding-bottom: 40px;
}
.site-footer h4 { color: #fff; margin-bottom: 14px; }
.site-footer p, .site-footer a { font-size: .92rem; }
.site-footer a:hover { color: var(--primary); }
.site-footer ul li { margin-bottom: 8px; }
.footer-bottom { border-top: 1px solid var(--dark-3); padding: 18px 0; font-size: .85rem; color: #9aa0a8; }
.footer-bottom a:hover { color: var(--primary); }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(3, 1fr); }
  .galerie-item { flex: 0 0 50%; }
}

@media (max-width: 820px) {
  .topbar-inner { flex-wrap: wrap; gap: 10px; }
  .topbar-search { margin-left: 0; width: 100%; }
  .topbar-search input { width: 100%; }

  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed; inset: 0 0 0 auto; width: min(320px, 85vw); background: #fff;
    transform: translateX(100%); transition: transform .3s; overflow-y: auto;
    box-shadow: -4px 0 20px rgba(0,0,0,.2); padding-top: 20px; z-index: 99;
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav > ul { flex-direction: column; }
  .main-nav a { padding: 14px 20px; }
  .dropdown, .sub-dropdown {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; background: var(--light); display: none;
  }
  .has-dropdown.open > .dropdown, .has-sub.open > .sub-dropdown { display: block; }
  .dropdown a { color: var(--dark); padding-left: 34px; }
  .sub-dropdown a { padding-left: 48px; }

  .hero-slider { height: 420px; }
  .hero-content h1 { font-size: 2.4rem; }
  .feature-grid, .facts, .projekt, .kontakt-grid, .form-row { grid-template-columns: 1fr; }
  .projekt.reverse .projekt-img { order: 0; }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .galerie-item { flex: 0 0 100%; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .social-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 520px) {
  .card-grid { grid-template-columns: 1fr; }
  .hero-arrow { width: 40px; height: 40px; font-size: 1.2rem; }
}