:root {
  --color-primary: #2E2F31;
  --color-secondary: #F5F6F4;
  --color-accent: #2F5D62;
  --color-accent-alt: #C16A4A;
  --color-steel: #4F6D7A;
  --color-concrete: #E8E9EB;
  --color-slate: #5A5F63;
  --color-beige: #D8D2C8;
  --font-primary: 'Poppins', sans-serif;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 4rem;
  --radius-md: 8px;
  --transition-fast: 0.3s ease;
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: var(--font-primary);
  background-color: var(--color-secondary);
  color: var(--color-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-width: 0;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

button {
  cursor: pointer;
  border: none;
  outline: none;
  font-family: inherit;
}

ul {
  list-style: none;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
  min-width: 0;
}

.global-header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: var(--space-md) 0;
  background: #ffffff;
  transition: var(--transition-fast);
}

.global-header.scrolled {
  position: fixed;
  background: #ffffff;
  padding: var(--space-sm) 0;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand-name {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: inherit;
  text-decoration: none;
}

a.brand-name:hover {
  color: inherit;
  text-decoration: none;
}

#back-to-top {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast);
  z-index: 999;
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

#back-to-top:hover {
  background: var(--color-accent);
}

.main-nav ul {
  display: flex;
  gap: var(--space-lg);
}

.nav-link {
  font-weight: 500;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: var(--transition-fast);
}

.nav-link:hover::after {
  width: 100%;
}

.burger-menu {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 0;
  z-index: 1100;
}

.burger-bar {
  width: 25px;
  height: 2px;
  background: var(--color-primary);
  transition: var(--transition-fast);
}

.burger-menu.toggle .burger-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.burger-menu.toggle .burger-bar:nth-child(2) {
  opacity: 0;
}

.burger-menu.toggle .burger-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 1023px) {
  .burger-menu {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: min(80vw, 250px);
    height: 100vh;
    background: #ffffff;
    padding: var(--space-xl) var(--space-md);
    box-shadow: var(--shadow-md);
    transition: transform 0.5s ease;
    transform: translateX(100%);
  }

  .main-nav.active {
    transform: translateX(0);
  }

  .main-nav ul {
    flex-direction: column;
    gap: var(--space-md);
  }
}

.hero {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-size: cover;
  background-position: center;
  color: white;
  position: relative;
}

.hero-home {
  background-image: url('../images/image_1772091943_0.webp');
}

.hero-materials {
  background-image: url('../images/image_1772091965_9.webp');
}

.hero-short {
  height: 60vh;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
}

.hero-content {
  position: relative;
  z-index: 1;
}

.hero-block {
  min-height: 45vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-size: cover;
  background-position: center;
  color: white;
  position: relative;
}

.hero-block::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
}

.hero-block > .container {
  position: relative;
  z-index: 1;
}

.hero-products {
  background-image: url('../images/image_1772091958_8.webp');
}

.hero-planner {
  background-image: url('../images/image_1772091957_7.webp');
}

.hero-inspiration {
  background-image: url('../images/image_1772091955_6.webp');
}

.hero-contact {
  background-image: url('../images/image_1772091978_13.webp');
}

.hero-title {
  font-size: clamp(2rem, 5vw, 4rem);
  margin-bottom: var(--space-md);
}

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: white;
  font-weight: 600;
  transition: var(--transition-fast);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  background: var(--color-accent);
}

section {
  padding: var(--space-xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-lg);
  font-size: 2.5rem;
}

.home-teaser {
  background: var(--color-secondary);
}

.home-teaser-materials {
  background: white;
}

.home-teaser-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.home-teaser-reverse .home-teaser-inner {
  direction: rtl;
}

.home-teaser-reverse .home-teaser-inner > * {
  direction: ltr;
}

.home-teaser-fig {
  margin: 0;
}

.home-teaser-fig img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.home-teaser-content .section-title {
  text-align: left;
}

.home-teaser-reverse .home-teaser-content .section-title {
  text-align: right;
}

.stats-strip {
  background: var(--color-primary);
  color: white;
  padding: var(--space-xl) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  text-align: center;
}

.stats-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.stats-label {
  font-size: 0.95rem;
  opacity: 0.9;
}

.about-strip {
  background: white;
}

.about-contact {
  margin-bottom: var(--space-xl);
}

.about-contact .section-title {
  text-align: left;
}

.cta-strip {
  background: var(--color-concrete);
}

.footer-impressum {
  font-size: 0.8rem;
  opacity: 0.92;
  margin-top: var(--space-sm);
}

.configurator-preview-img {
  margin: var(--space-lg) auto;
  border-radius: var(--radius-md);
  display: block;
  max-width: 100%;
}

.solutions {
  background-color: var(--color-concrete);
}

.solutions-grid {
  align-items: center;
}

.solutions-img {
  border-radius: var(--radius-md);
  width: 100%;
  height: auto;
}

.solutions-content {
  grid-column: span 2;
}

.solutions .section-title {
  text-align: left;
}

.solutions-list {
  margin-top: var(--space-md);
  list-style: none;
  padding: 0;
  margin-bottom: 0;
}

.solutions-list li {
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.solutions-list li:last-child {
  margin-bottom: 0;
}

.solutions-list .fa-check-circle {
  color: var(--color-accent);
  font-size: 1.5rem;
  flex-shrink: 0;
}

.solutions-list p {
  margin: 0;
}

.step-num {
  display: inline-block;
  width: 2.5rem;
  height: 2.5rem;
  line-height: 2.5rem;
  text-align: center;
  background: var(--color-primary);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.contact-map-section .map-section {
  margin-top: 0;
}

.contact-faq {
  background: var(--color-concrete);
}

.faq-list {
  max-width: 600px;
  margin: 0 auto;
}

.faq-item {
  background: white;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  padding: var(--space-md) var(--space-lg);
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  float: right;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  padding: 0 var(--space-lg) var(--space-md);
  margin: 0;
  border-top: 1px solid var(--color-concrete);
}

.inspiration-intro {
  background: white;
}

.planner-how {
  background-color: var(--color-secondary);
}

.planner-step-icon {
  font-size: 2rem;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  display: block;
}

.material-section-alt {
  background-color: white;
}

.material-section-alt .material-content {
  order: 2;
}

.material-section-alt .material-image-container {
  order: 1;
}

@media (max-width: 768px) {
  .home-teaser-inner {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .home-teaser-reverse .home-teaser-inner {
    direction: ltr;
  }

  .home-teaser-content .section-title,
  .home-teaser-reverse .home-teaser-content .section-title {
    text-align: center;
  }

  .stats-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: var(--space-lg);
  min-width: 0;
}

.card {
  background: white;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.card-img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

.global-footer {
  background: var(--color-primary);
  color: white;
  padding: var(--space-xl) 0 var(--space-md);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-brand .brand-name {
  margin-bottom: var(--space-sm);
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-bottom {
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-md);
  font-size: 0.875rem;
}

.text-center {
  text-align: center;
}

.mt-md {
  margin-top: var(--space-md);
}

.legal-content {
  padding: var(--space-xl) 0;
}

.legal-card {
  background: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  padding: var(--space-lg);
  max-width: 800px;
  margin: 0 auto;
}

.legal-updated {
  margin-bottom: var(--space-lg);
  font-size: 0.9rem;
  color: var(--color-slate);
}

.legal-h2 {
  font-size: 1.15rem;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: var(--color-primary);
}

.legal-h2:first-of-type {
  margin-top: 0;
}

.legal-card p {
  margin-bottom: var(--space-md);
}

.legal-card p:last-child {
  margin-bottom: 0;
}

.legal-list {
  margin: var(--space-sm) 0 var(--space-md);
  padding-left: var(--space-lg);
}

.legal-list li {
  margin-bottom: var(--space-sm);
  list-style: disc;
}

.privacy-popup {
  position: fixed;
  bottom: var(--space-md);
  left: var(--space-md);
  right: var(--space-md);
  background: white;
  padding: var(--space-md);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 2000;
  transform: translateY(200%);
  transition: 0.5s ease;
}

.privacy-popup.active {
  transform: translateY(0);
}

@media (max-width: 480px) {
  .privacy-popup {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}

.material-section {
  padding: var(--space-xl) 0;
  overflow: hidden;
  border-bottom: 1px solid var(--color-concrete);
}

.material-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.material-image-container {
  overflow: hidden;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.material-image {
  width: 100%;
  height: 500px;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.material-image-container:hover .material-image {
  transform: scale(1.05);
}

.material-content h2 {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  color: var(--color-primary);
}

.material-tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-beige);
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

@media (max-width: 768px) {
  .material-grid {
    grid-template-columns: 1fr;
  }

  .material-image {
    height: 300px;
  }
}

.filter-container {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.filter-btn {
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-concrete);
  border-radius: 50px;
  font-weight: 600;
  transition: var(--transition-fast);
}

.filter-btn.active,
.filter-btn:hover {
  background: var(--color-accent);
  color: white;
}

.masonry-grid {
  columns: 3 300px;
  column-gap: var(--space-md);
}

.masonry-item {
  display: block;
  margin-bottom: var(--space-md);
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  break-inside: avoid;
  transition: var(--transition-fast);
}

.masonry-item img {
  width: 100%;
  height: auto;
  display: block;
}

.masonry-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(46, 47, 49, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--transition-fast);
}

.masonry-item:hover .masonry-overlay {
  opacity: 1;
}

.view-btn {
  color: white;
  border: 2px solid white;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  font-weight: 600;
  transform: translateY(20px);
  transition: var(--transition-fast);
}

.masonry-item:hover .view-btn {
  transform: translateY(0);
}

@media (max-width: 480px) {
  .masonry-grid {
    columns: 1;
  }
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.info-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.info-item i {
  font-size: 1.5rem;
  color: var(--color-accent);
  margin-top: 4px;
}

.contact-form-container {
  background: white;
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--space-sm);
  border: 1px solid var(--color-concrete);
  border-radius: var(--radius-md);
  font-family: inherit;
}

.form-group textarea {
  height: 150px;
  resize: vertical;
}

.checkbox-group {
  display: flex;
  gap: var(--space-sm);
  align-items: flex-start;
  font-size: 0.9rem;
}

.checkbox-group input {
  width: auto;
  margin-top: 4px;
}

.checkbox-group .field-error {
  margin-left: 0;
}

.form-group input[aria-invalid="true"],
.form-group textarea[aria-invalid="true"] {
  border-color: #c00;
}

.field-error {
  display: none;
  margin-top: var(--space-xs);
  margin-left: 0;
  font-size: 0.875rem;
  color: #c00;
}

.field-error:not(:empty) {
  display: block;
}

.required {
  color: #c00;
}

.link-underline {
  text-decoration: underline;
}

.btn-full {
  width: 100%;
}

.map-section {
  margin-top: var(--space-xl);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.map-section iframe {
  width: 100%;
  max-width: 100%;
  height: 450px;
  display: block;
  border: 0;
}

.product-disclaimer {
  margin-bottom: var(--space-md);
  font-size: 0.95rem;
  color: var(--color-slate);
}

.product-grid {
  margin-top: var(--space-xl);
}

.product-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
  background: white;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
  align-items: center;
}

.product-card:hover {
  box-shadow: var(--shadow-md);
}

.product-image-side {
  height: 400px;
}

.product-image-side img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-info-side {
  padding: var(--space-xl);
}

.price-tag {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  margin: var(--space-md) 0;
}

.product-features {
  margin: var(--space-md) 0;
  padding-left: var(--space-md);
  border-left: 2px solid var(--color-concrete);
}

.product-features li {
  margin-bottom: var(--space-xs);
  font-size: 0.9rem;
}

@media (max-width: 360px) {
  .container {
    width: 100%;
    padding-left: var(--space-sm);
    padding-right: var(--space-sm);
  }

  .grid-3 {
    grid-template-columns: 1fr !important;
    gap: var(--space-md);
  }

  .product-card {
    grid-template-columns: 1fr;
  }

  .product-image-side {
    height: 220px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .section-title {
    font-size: 1.5rem;
  }

  .global-header .container {
    padding-left: var(--space-sm);
    padding-right: var(--space-sm);
  }
}

@media (max-width: 320px) {
  html {
    font-size: 14px;
  }

  .container {
    padding-left: var(--space-xs);
    padding-right: var(--space-xs);
  }
}