/* ==========================================================================
   Zeljko Radic Trockenbau — Stylesheet
   Design basierend auf Logo: Minimalistisch, geometrisch, Schwarz/Weiß
   ========================================================================== */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Farben – abgeleitet vom Logo */
  --color-black: #1a1a1a;
  --color-dark: #2c2c2c;
  --color-gray-800: #3a3a3a;
  --color-gray-600: #6b6b6b;
  --color-gray-400: #9a9a9a;
  --color-gray-200: #e0e0e0;
  --color-gray-100: #f2f2f2;
  --color-white: #ffffff;
  --color-accent: #c8a96e; /* Dezenter Gold-Akzent für CTAs */
  --color-accent-dark: #b0903a;
  --color-overlay: rgba(26, 26, 26, 0.85);

  /* Typografie */
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Poppins', sans-serif;

  /* Abstände */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
  --spacing-2xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --header-height: 80px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Schatten */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
  --radius-sm: 0;
  --radius-md: 0;
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-dark);
  background-color: var(--color-gray-100);
}

main {
  background-color: var(--color-white);
}

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

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

ul, ol {
  list-style: none;
}

/* ---------- Typografie ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-black);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.2rem, 2.5vw, 1.5rem);
}

h4 {
  font-size: 1.125rem;
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray-600);
}

/* ---------- Utility ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.section--gray {
  background-color: var(--color-gray-100);
}

.section__label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: var(--spacing-xs);
}

.section__title {
  margin-bottom: var(--spacing-sm);
  position: relative;
  padding-bottom: 0.75rem;
}

.section__title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 74px;
  height: 3px;
  background-color: var(--color-accent);
}

.text-center .section__title::after {
  left: 50%;
  transform: translateX(-50%);
}

.section__subtitle {
  max-width: 640px;
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-lg);
}

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

.text-center .section__subtitle {
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.875rem 2rem;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn--primary {
  background-color: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

.btn--primary:hover {
  background-color: var(--color-white);
  color: var(--color-black);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-black);
  border-color: var(--color-black);
}

.btn--outline:hover {
  background-color: var(--color-black);
  color: var(--color-white);
}

.btn--accent {
  background-color: var(--color-accent);
  color: var(--color-black);
  border-color: var(--color-accent);
}

.btn--accent:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-white);
}

.btn--arrow::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.btn--arrow:hover::after {
  transform: translateX(4px);
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--spacing-lg);
}

.hero__trust li {
  font-size: 0.8125rem;
  font-family: var(--font-heading);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-dark);
  border: 1px solid var(--color-gray-200);
  border-radius: 999px;
  padding: 0.375rem 0.75rem;
  background-color: var(--color-white);
}

/* ---------- Construction Layout (Startseite) ---------- */
.wrapper {
  background: var(--color-white);
}

.top-bar {
  background: var(--color-accent);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.top-bar__inner {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.top-bar__logo img {
  width: clamp(180px, 24vw, 300px);
  height: auto;
}

.top-bar__items {
  display: flex;
  gap: var(--spacing-md);
}

.top-bar__item {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.top-bar__title {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-black);
}

.top-bar__text {
  font-size: 0.875rem;
  color: var(--color-black);
}

.nav-bar {
  position: relative;
  background: var(--color-black);
  z-index: 1001;
}

.nav-bar.nav-sticky {
  position: sticky;
  top: 0;
  box-shadow: var(--shadow-sm);
}

.nav-bar__inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  position: relative;
}

.nav-bar__logo-mobile {
  display: none;
}

.nav-bar__brand {
  display: none;
  align-items: center;
}

.nav-bar__brand img {
  display: block;
  height: 40px;
  width: auto;
}

.nav-bar__menu {
  display: flex;
  align-items: center;
  gap: 1.35rem;
  list-style: none;
  margin-left: auto;
}

.nav-bar__menu a {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.4rem 0.2rem;
  border-bottom: 2px solid transparent;
}

.nav-bar__menu a:hover,
.nav-bar__menu a.active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.nav-bar__toggle {
  display: none;
  border: 1px solid rgba(255, 255, 255, 0.4);
  background: transparent;
  color: var(--color-white);
  width: 40px;
  height: 40px;
  cursor: pointer;
}

.hero-carousel {
  position: relative;
  height: clamp(460px, 72vh, 740px);
  overflow: hidden;
}

.hero-carousel__slides {
  position: relative;
  width: 100%;
  height: 100%;
}

.hero-carousel__slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s ease;
  background-size: cover;
  background-position: center;
}

.hero-carousel__slide.is-active {
  opacity: 1;
  visibility: visible;
}

.hero-carousel__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(26, 26, 26, 0.74) 20%, rgba(26, 26, 26, 0.35) 70%, rgba(26, 26, 26, 0.2));
  z-index: 1;
}

.hero-carousel__content {
  position: relative;
  z-index: 2;
  min-height: clamp(460px, 72vh, 740px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: var(--spacing-sm);
}

.hero-carousel__kicker {
  color: var(--color-accent);
  font-family: var(--font-heading);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-bottom: 0;
}

.hero-carousel__content h1,
.hero-carousel__content h2 {
  color: var(--color-white);
  max-width: 760px;
  margin-bottom: 0.5rem;
}

.hero-carousel__control {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  background: rgba(0, 0, 0, 0.28);
  color: var(--color-white);
  font-size: 1.7rem;
  line-height: 1;
  cursor: pointer;
  z-index: 3;
}

.hero-carousel__control--prev { left: 15px; }
.hero-carousel__control--next { right: 15px; }

.hero-carousel__dots {
  position: absolute;
  left: 50%;
  bottom: 16px;
  transform: translateX(-50%);
  display: flex;
  gap: 0.55rem;
  z-index: 3;
}

.hero-carousel__dots button {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 0;
  background: rgba(255, 255, 255, 0.55);
  cursor: pointer;
}

.hero-carousel__dots button.is-active {
  background: var(--color-accent);
}

.feature-strip {
  background: var(--color-gray-100);
  padding: 0;
}

.feature-strip__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-strip__item {
  padding: var(--spacing-lg);
  border-right: 1px solid var(--color-gray-200);
}

.feature-strip__item:last-child {
  border-right: none;
}

.feature-strip__item h3 {
  margin-bottom: 0.65rem;
}

.feature-strip__item p {
  margin-bottom: 0;
}

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.98);
  z-index: 1000;
  border-bottom: 1px solid var(--color-gray-200);
  transition: box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.header--scrolled {
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  border-bottom-color: transparent;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  gap: var(--spacing-sm);
}

.header nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

/* Navigation */
.nav__list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  height: 100%;
}

.nav__link {
  display: inline-flex;
  align-items: center;
  height: 100%;
  line-height: 1;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-dark);
  position: relative;
  padding: 0;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-black);
  transition: width var(--transition-normal);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

.nav__link--cta {
  height: auto;
  background-color: var(--color-black);
  color: var(--color-white);
  padding: 0.625rem 1.25rem;
}

.nav__link--cta::after {
  display: none;
}

.nav__link--cta:hover {
  background-color: var(--color-gray-800);
  color: var(--color-white);
}

/* Mobile Menu Toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.nav__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-black);
  transition: all var(--transition-normal);
  transform-origin: center;
}

.nav__toggle--active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle--active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle--active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (min-width: 769px) {
  .header__inner {
    justify-content: center;
  }

  .header nav {
    width: 100%;
    justify-content: center;
  }
}

/* ---------- Hero ---------- */
.hero {
  --spot-x: 50%;
  --spot-y: 45%;
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background-color: var(--color-white);
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.hero__logo-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: var(--spacing-md);
  transform-style: preserve-3d;
}

.hero-logo {
  position: relative;
  z-index: 1;
  display: block;
  width: 1000px;
  height: 250px;
  max-width: 100%;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(16px) scale(0.98);
  transition: transform var(--transition-normal), opacity var(--transition-normal), filter var(--transition-normal);
  filter: drop-shadow(0 8px 24px rgba(26, 26, 26, 0.12));
}

.hero--visible .hero-logo {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.hero--scrolled .hero-logo {
  transform: scale(0.93) translateY(-4px);
}

#hero-heading {
  margin-bottom: var(--spacing-md);
}

.text-accent {
  color: var(--color-accent-dark);
}

.hero-subtitle {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-lg);
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.875rem 2rem;
  border: 2px solid var(--color-black);
  background-color: var(--color-black);
  color: var(--color-white);
  transition: all var(--transition-normal);
}

.hero-cta:hover {
  background-color: var(--color-white);
  color: var(--color-black);
}

.hero__label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: var(--spacing-sm);
  padding: 0.375rem 1rem;
  border: 1px solid var(--color-accent);
}

.hero__title {
  margin-bottom: var(--spacing-md);
}

.hero__title span {
  display: block;
  color: var(--color-gray-400);
  font-size: 0.55em;
  font-weight: 400;
  letter-spacing: 0;
  margin-top: 0.5rem;
}

.hero__text {
  font-size: 1.125rem;
  line-height: 1.8;
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-lg);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

.hero__actions {
  display: flex;
  flex-wrap: nowrap;
  justify-content: center;
  gap: var(--spacing-sm);
}

.hero__actions .btn {
  width: auto;
}

/* ---------- Über Uns ---------- */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.about__image {
  position: relative;
}

.about__image-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background-color: var(--color-gray-200);
}

.about__image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Geometrischer Akzent (Logo-inspiriert) */
.about__image::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  border: 2px solid var(--color-black);
  top: -15px;
  left: -15px;
  z-index: -1;
}

.about__content {
  max-width: 520px;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-gray-200);
}

.about__stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-black);
  line-height: 1;
}

.about__stat-text {
  font-size: 0.8125rem;
  color: var(--color-gray-600);
  margin-top: 0.25rem;
  margin-bottom: 0;
}

/* ---------- Leistungen (Services) ---------- */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.service-card {
  padding: var(--spacing-lg);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background-color: var(--color-black);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.service-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
}

.service-card__title {
  margin-bottom: var(--spacing-sm);
}

.service-card__text {
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* ---------- Projekte (Projects) ---------- */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.project-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4 / 3;
  background-color: var(--color-gray-200);
  border-radius: var(--radius-md);
}

.project-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.project-card__overlay {
  position: absolute;
  inset: 0;
  background: var(--color-overlay);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--spacing-md);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.project-card:hover .project-card__image {
  transform: scale(1.05);
}

.project-card:hover .project-card__overlay {
  opacity: 1;
}

.project-card__title {
  color: var(--color-white);
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.project-card__category {
  color: var(--color-gray-400);
  font-size: 0.8125rem;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0;
}

/* Projekte-Seite Detailkarten */
.project-detail {
  position: relative;
  overflow: hidden;
  background-color: var(--color-gray-200);
  border-radius: var(--radius-md);
}

.project-detail__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform var(--transition-slow);
  cursor: pointer;
}

.project-detail:hover .project-detail__image {
  transform: scale(1.03);
}

.project-detail__content {
  padding: var(--spacing-md);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-top: none;
}

/* ---------- Prozess ---------- */
.process {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--spacing-sm);
  list-style: none;
  margin-top: var(--spacing-lg);
}

.process__item {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  text-align: left;
}

.process__item h3 {
  margin: 0.5rem 0;
  font-size: 1.0625rem;
}

.process__item p {
  margin-bottom: 0;
  font-size: 0.9375rem;
}

.process__step {
  width: 2rem;
  height: 2rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--color-black);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 0.875rem;
}

/* ---------- Trust ---------- */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.trust-card {
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  text-align: left;
  box-shadow: var(--shadow-sm);
}

.trust-card h3 {
  font-size: 1.0625rem;
  margin-bottom: 0.5rem;
}

.trust-card p {
  margin-bottom: 0;
}

/* ---------- FAQ ---------- */
.faq {
  max-width: 860px;
  margin: 0 auto;
  display: grid;
  gap: 0.75rem;
}

.faq__item {
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  padding: 0.75rem 1rem;
}

.faq__item summary {
  cursor: pointer;
  font-family: var(--font-heading);
  font-weight: 600;
  list-style: none;
}

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

.faq__item p {
  margin: 0.75rem 0 0;
  font-size: 0.9375rem;
}

.project-detail__title {
  margin-bottom: var(--spacing-xs);
}

.project-detail__category {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: var(--spacing-sm);
}

.project-detail__text {
  font-size: 0.9375rem;
}

/* ---------- Kontakt (Contact) ---------- */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
}

.contact__info-item {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.contact__info-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  margin-top: 0.25rem;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  font-size: 1.125rem;
}

.contact__info-label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--color-black);
  margin-bottom: 0.125rem;
}

.contact__info-text {
  font-size: 0.9375rem;
  color: var(--color-gray-600);
  margin-bottom: 0;
  font-style: normal;
}

.contact__info-text a:hover {
  color: var(--color-black);
}

/* Formular */
.form__group {
  margin-bottom: var(--spacing-md);
}

.form__label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-dark);
  margin-bottom: var(--spacing-xs);
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-dark);
  background-color: var(--color-gray-100);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color var(--transition-fast);
}

.form__input:focus,
.form__textarea:focus {
  border-color: var(--color-black);
}

.form__textarea {
  min-height: 150px;
  resize: vertical;
}

.form__consent {
  margin-top: calc(var(--spacing-xs) * -1);
}

.form__consent-label {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0;
  text-transform: none;
  color: var(--color-gray-600);
}

.form__consent-label a {
  color: var(--color-black);
}

.form__consent-checkbox {
  margin-top: 0.2rem;
}

.form__input.is-invalid,
.form__textarea.is-invalid {
  border-color: #c0392b;
}

.form__consent-checkbox.is-invalid {
  outline: 2px solid #c0392b;
  outline-offset: 2px;
}

.form__error {
  display: none;
  padding: 0.75rem 1rem;
  margin-bottom: var(--spacing-md);
  background-color: #fdf2f2;
  border: 1px solid #e8c4c4;
  border-radius: var(--radius-sm);
  color: #c0392b;
  font-size: 0.9rem;
  line-height: 1.5;
}

.form__error--visible {
  display: block;
}

.form__error.form__error--success {
  background-color: #f2fdf4;
  border-color: #a8d5b1;
  color: #1d6e30;
}

/* ---------- Leistungen-Seite ---------- */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
  padding: var(--spacing-xl) 0;
  border-bottom: 1px solid var(--color-gray-200);
}

.service-detail:last-child {
  border-bottom: none;
}

.service-detail--reverse {
  direction: rtl;
}

.service-detail--reverse > * {
  direction: ltr;
}

.service-detail__image {
  aspect-ratio: 4 / 3;
  background-color: var(--color-gray-200);
  overflow: hidden;
}

.service-detail__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.service-detail__number {
  font-family: var(--font-heading);
  font-size: 4rem;
  font-weight: 700;
  color: var(--color-gray-200);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.service-detail__title {
  margin-bottom: var(--spacing-sm);
}

.service-detail__text {
  margin-bottom: var(--spacing-md);
}

.service-detail__list {
  list-style: none;
  padding: 0;
}

.service-detail__list li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  font-size: 0.9375rem;
  color: var(--color-gray-600);
}

.service-detail__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 8px;
  height: 2px;
  background-color: var(--color-black);
}

/* ---------- Page Header (Unterseiten) ---------- */
.page-header {
  padding: clamp(3rem, 7vw, 5rem) 0 clamp(2rem, 5vw, 3.25rem);
  background-color: var(--color-gray-100);
  text-align: center;
  border-bottom: 1px solid var(--color-gray-200);
}

.page-header__title {
  margin-bottom: var(--spacing-sm);
}

.page-header__breadcrumb {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  color: var(--color-gray-400);
}

.page-header__breadcrumb a {
  color: var(--color-gray-600);
}

.page-header__breadcrumb a:hover {
  color: var(--color-black);
}

.page-header__breadcrumb span {
  margin: 0 0.5rem;
}

/* ---------- Legal Pages (Datenschutz, Impressum) ---------- */
.legal {
  padding: var(--spacing-xl) 0;
}

.legal__content {
  max-width: 800px;
  margin: 0 auto;
}

.legal__content > h2 {
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-gray-200);
}

.legal__content > h2:first-child {
  border-top: 0;
  padding-top: 0;
}

.legal__content h2 {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

.legal__content h3 {
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-xs);
  font-size: 1.125rem;
}

.legal__content p {
  margin-bottom: var(--spacing-sm);
}

.legal__content ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.legal__content ul li {
  margin-bottom: 0.25rem;
  color: var(--color-gray-600);
}

.legal__content a {
  color: var(--color-black);
  text-decoration: underline;
}

.legal__content a:hover {
  color: var(--color-accent-dark);
}

/* ---------- Footer ---------- */
.footer {
  background-color: var(--color-black);
  color: var(--color-gray-400);
  padding: var(--spacing-xl) 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-lg);
  padding-bottom: var(--spacing-xl);
}

.footer__brand p {
  color: var(--color-gray-400);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-top: var(--spacing-sm);
}

.footer__logo {
  height: 40px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer__title {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.footer__list li {
  margin-bottom: 0.75rem;
}

.footer__list a {
  font-size: 0.9375rem;
  color: var(--color-gray-400);
  transition: color var(--transition-fast);
}

.footer__list a:hover {
  color: var(--color-white);
}

.footer__contact-item {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.9375rem;
  align-items: flex-start;
}

.footer__address {
  font-style: normal;
}

.footer__seo {
  font-size: 0.875rem;
  color: var(--color-white);
  margin-top: var(--spacing-sm);
}

.footer__contact-icon {
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.footer__social {
  display: flex;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-gray-800);
  color: var(--color-gray-400);
  transition: all var(--transition-fast);
  font-size: 1rem;
}

.footer__social a:hover {
  border-color: var(--color-white);
  color: var(--color-white);
}

.footer__bottom {
  border-top: 1px solid var(--color-gray-800);
  padding: var(--spacing-md) 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8125rem;
}

.footer__bottom a {
  color: var(--color-gray-400);
}

.footer__bottom a:hover {
  color: var(--color-white);
}

.footer__bottom-links {
  display: flex;
  gap: var(--spacing-md);
}

/* ---------- Lightbox ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.92);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
  outline: none;
}

.lightbox--active {
  opacity: 1;
  visibility: visible;
}

.lightbox__image {
  max-width: min(90vw, 1200px);
  max-height: 85vh;
  object-fit: contain;
  display: block;
  transition: opacity 0.18s ease;
  pointer-events: none;
  user-select: none;
}

.lightbox__image--fading {
  opacity: 0;
}

.lightbox__close {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  width: 48px;
  height: 48px;
  background: none;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--color-white);
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color var(--transition-fast);
  z-index: 10;
}

.lightbox__close:hover {
  border-color: var(--color-white);
}

.lightbox__prev,
.lightbox__next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--color-white);
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), border-color var(--transition-fast);
  z-index: 10;
  -webkit-tap-highlight-color: transparent;
}

.lightbox__prev { left: 1rem; }
.lightbox__next { right: 1rem; }

.lightbox__prev:hover,
.lightbox__next:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: var(--color-white);
}

.lightbox__counter {
  position: absolute;
  bottom: 1.25rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.7);
  font-family: var(--font-body);
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  pointer-events: none;
  white-space: nowrap;
}

@media (max-width: 600px) {
  .lightbox__prev { left: 0.375rem; }
  .lightbox__next { right: 0.375rem; }
  .lightbox__image {
    max-width: 100vw;
    max-height: 80vh;
  }
}

.mobile-call {
  position: fixed;
  left: 50%;
  bottom: 1rem;
  transform: translateX(-50%);
  z-index: 1200;
  background: var(--color-black);
  color: var(--color-white);
  border: 2px solid var(--color-black);
  border-radius: 999px;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.75rem 1.1rem;
  box-shadow: var(--shadow-md);
  display: none;
}

.mobile-call:hover {
  background: var(--color-white);
  color: var(--color-black);
}

/* ---------- Scroll Animationen ---------- */
.wow {
  --wow-delay: 0s;
}

.js-enabled .wow {
  opacity: 0;
  visibility: hidden;
  animation-duration: 0.8s;
  animation-delay: var(--wow-delay);
  animation-fill-mode: both;
}

.js-enabled .wow.is-visible {
  visibility: visible;
}

.js-enabled .fadeInUp.is-visible {
  animation-name: fadeInUp;
}

.js-enabled .slideInLeft.is-visible {
  animation-name: slideInLeft;
}

.js-enabled .slideInRight.is-visible {
  animation-name: slideInRight;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translate3d(0, 34px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translate3d(-46px, 0, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translate3d(46px, 0, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  right: 15px;
  bottom: 15px;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-black);
  border-radius: 50%;
  background: var(--color-black);
  color: var(--color-white);
  font-size: 1.25rem;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1300;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition-normal), transform var(--transition-normal), background-color var(--transition-fast), color var(--transition-fast);
}

.back-to-top--visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-white);
  color: var(--color-black);
}

/* ---------- Responsive: Tablet ---------- */
@media (max-width: 992px) {
  .top-bar__inner {
    min-height: auto;
    align-items: flex-start;
    flex-direction: column;
    padding-top: 1rem;
    padding-bottom: 1rem;
  }

  .top-bar__items {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.8rem;
  }

  .feature-strip__grid {
    grid-template-columns: 1fr;
  }

  .feature-strip__item {
    border-right: none;
    border-bottom: 1px solid var(--color-gray-200);
  }

  .feature-strip__item:last-child {
    border-bottom: none;
  }

  .about__grid,
  .contact__grid,
  .service-detail {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .service-detail--reverse {
    direction: ltr;
  }

  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .projects__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .trust-grid {
    grid-template-columns: 1fr;
  }

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

  .about__image::before {
    display: none;
  }

}

/* ---------- Responsive: Mobile ---------- */
@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }

  .top-bar {
    display: none;
  }

  .nav-bar__logo-mobile {
    display: block;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }

  .nav-bar__logo-mobile img {
    display: block;
    height: 52px;
    width: auto;
  }

  .top-bar__items {
    grid-template-columns: 1fr;
  }

  .nav-bar__brand {
    display: inline-flex;
    align-items: center;
  }

  .nav-bar__toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .nav-bar__menu {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0.6rem var(--spacing-md);
    background: var(--color-black);
    border-top: 1px solid rgba(255, 255, 255, 0.15);
  }

  .nav-bar__menu.nav-bar__menu--open {
    display: flex;
  }

  .nav-bar__menu li,
  .nav-bar__menu a {
    width: 100%;
  }

  .nav-bar__menu a {
    display: block;
    padding: 0.85rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  }

  .hero-carousel__content {
    align-items: center;
    text-align: center;
  }

  .hero-carousel__control {
    display: none;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__list {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--color-white);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
    z-index: 1000;
  }

  .header__inner {
    gap: 0.5rem;
  }

  .nav__list--open {
    transform: translateX(0);
  }

  .nav__link {
    font-size: 1.125rem;
  }

  .hero {
    min-height: auto;
    padding: calc(var(--header-height) + var(--spacing-xl)) 0 var(--spacing-xl);
  }

  .hero-logo {
    width: 1000px;
    height: 250px;
    margin-bottom: var(--spacing-md);
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero__actions {
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: center;
    overflow-x: auto;
    padding-bottom: 0.25rem;
  }

  .hero__trust {
    justify-content: center;
  }

  .btn {
    text-align: center;
    justify-content: center;
    width: 100%;
  }

  .hero__actions .btn {
    width: auto;
    flex: 0 0 auto;
  }

  .services__grid {
    grid-template-columns: 1fr;
  }

  .projects__grid {
    grid-template-columns: 1fr;
  }

  .process {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr;
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }

  .about__stats {
    grid-template-columns: repeat(3, 1fr);
    text-align: center;
  }

  .mobile-call {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--spacing-sm);
  }

  .section {
    padding: var(--spacing-lg) 0;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .hero::before,
  .hero::after,
  .hero__logo-wrap::after {
    display: none;
  }

  .hero__logo-wrap::before {
    animation: none;
  }

  .hero-logo {
    transition: none;
    opacity: 1;
    transform: none;
    filter: none;
  }

  .js-enabled .wow {
    opacity: 1;
    visibility: visible;
    animation: none !important;
  }

  .hero--scrolled .hero-logo {
    transform: none;
  }
}