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

:root {
  --bg: #F7F7F5;
  --text: #1A1A1A;
  --accent: #A3A6AA;
  --border: rgba(26, 26, 26, 0.08);
  --border-medium: rgba(26, 26, 26, 0.12);
  --font-heading: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 6rem;
  --space-2xl: 9rem;
}

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

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-weight: 300;
  overflow-x: hidden;
}

html, body {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

::selection {
  background: rgba(26, 26, 26, 0.08);
}

.grain-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-lg);
  }
}

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  width: 100%;
  z-index: 999;

  height: 120px;
  padding: 0 var(--space-lg);
  
  display: flex;
  align-items: center;

  background: transparent;
  transition: all 0.4s ease;
}

.nav.scrolled {
  backdrop-filter: blur(18px);
  background: rgba(247,247,245,0.85);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

@media (min-width: 768px) {
  .nav {
    padding: var(--space-md) var(--space-lg);
  }
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  position: relative;
  display: flex;
  align-items: center;
  height: 40px;
}

.nav-links {
  display: none;
  gap: 2.2rem;
}

@media (min-width: 960px) {
  .nav-links {
    display: flex;
  }
}

.nav-link {
  position: relative;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-decoration: none;
  color: var(--text);
  transition: opacity 0.3s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 1px;
  background: var(--text);
  transition: width 0.35s ease;
}

.nav-link:hover {
  opacity: 0.7;
}

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

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  z-index: 11000;
}

.nav-cta {
  padding: 0.6rem 1.4rem;
  border: 1px solid var(--text);
  transition: all 0.3s ease;
}

.nav-cta:hover {
  background: var(--text);
  color: #fff;
}

@media (min-width: 960px) {
  .nav-toggle {
    display: none;
  }
}

.nav-toggle span {
  width: 22px;
  height: 1px;
  background: var(--text);
  transition: 0.3s;
}

.nav-toggle.active span:first-child {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:last-child {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (min-width: 960px) {
  .nav-toggle {
    display: none;
  }
}

.nav.hero-mode:not(.menu-open) .nav-link,
.nav.hero-mode:not(.menu-open) .logo-main,
.nav.hero-mode:not(.menu-open) .logo-sub {
  color: #ffffff;
}

.nav.hero-mode .nav-link::after {
  background: #ffffff;
}

.nav.hero-mode:not(.menu-open) .nav-toggle span {
  background: #ffffff;
}
.nav,
.nav-link,
.logo-main,
.logo-sub,
.nav-toggle span {
  transition: color 0.3s ease, background 0.3s ease;
}

.mobile-menu {
  position: fixed;
  inset: 0;
  background: #111;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
  z-index: 10000;
}

.mobile-menu.active {
  opacity: 1;
  pointer-events: all;
}

.mobile-link {
  font-family: var(--font-heading);
  font-size: 2rem;
  letter-spacing: 0.05em;
  text-decoration: none;
  color: #fff;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

.mobile-inner {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  text-align: center;
}

.mobile-link:hover {
  opacity: 1;
}

.mobile-cta {
  margin-top: 2rem;
  border: 1px solid #fff;
  padding: 1rem 2.5rem;
}

.hero {
  position: relative;
  height: 100vh;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.hero-video-wrapper {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  top: 50%;
  left: 50%;
  object-fit: cover;
  transform: translate(-50%, -50%);
  pointer-events: none;
  object-position: center;
  filter: brightness(0.80);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.45),
    rgba(0,0,0,0.55)
  );
  z-index: 1;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
    rgba(255,255,255,0.05) 1px,
    transparent 1px
  );
  background-size: 100% 140px;
  pointer-events: none;
  opacity: 0.3;
  z-index: 1;
}

@media (min-width: 768px) {
  .hero {
    padding: var(--space-xl) var(--space-lg) var(--space-xl);
  }
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0,0,0,0.6),
    rgba(0,0,0,0.75)
  );
  z-index: 1;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 100% 140px, 140px 100%;
  opacity: 0.25;
  z-index: 2;
  pointer-events: none;
}

.logo-main {
  font-family: var(--font-heading);
  font-size: 1rem;
  letter-spacing: 0.25em;
  font-weight: 500;
  color: var(--text);
}

.logo-sub {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  opacity: 0.5;
  margin-top: 4px;
}

.hero-image.loaded {
  transform: scale(1);
}

.hero-content {
  position: relative;
  z-index: 3;
  color: #fff;
  left: 2%;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 1.5rem;
}

.meta-line {
  width: 60px;
  height: 1px;
  background: #fff;
  opacity: 0.6;
}

@media (max-width: 768px) {
  .meta-line {
    width: 10px;
  }
}

.hero-kicker {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  /* text-transform: uppercase; */
  opacity: 0.7;
}

@media (max-width: 768px) {
  .hero-kicker {
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    opacity: 0.5;
  }
}

.hero-headline {
  font-family: var(--font-heading);
  line-height: 0.95;
  margin-bottom: 1.5rem;
}

.headline-main {
  display: block;
  font-size: clamp(2.5rem, 3vw, 5rem);
  font-weight: 200;
  letter-spacing: -0.03em;
  opacity: 0.8;
  text-transform: uppercase;
}

.headline-sub {
  display: block;
  font-size: clamp(1.8rem, 2.5vw, 2.5rem);
  font-weight: 200;
  letter-spacing: 0.25em;
  margin-top: 10px;
  opacity: 0.75;
}

.hero-line {
  display: block;
}

.hero-line-light {
  font-weight: 200;
  opacity: 0.8;
}

.hero-subline {
  font-size: 1.2rem;
  margin-bottom: 3rem;
  opacity: 0.9;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
}

.hero-scroll span {
  display: block;
  width: 1px;
  height: 20px;
  background: #fff;
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0% { transform: translateY(-20px); opacity: 0; }
  50% { opacity: 1; }
  100% { transform: translateY(50px); opacity: 0; }
}

.hero-micro {
  max-width: 560px;
  font-size: 0.95rem;
  opacity: 0.85;
  margin-bottom: 2.5rem;
}

.hero-actions {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  color: #fff;
}

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-decoration: none;
  color: var(--text);
  border: 1.5px solid var(--text);
  padding: 1rem 2.5rem;
  background: transparent;
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease;
}

.btn:hover {
  background: var(--text);
  color: var(--bg);
}

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

@media (min-width: 768px) {
  .section {
    padding: var(--space-2xl) 0;
  }
}

.section-label {
  margin-bottom: 60px;
}

.label-text {
  font-family: var(--font-body);
  font-size: 0.6875rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  left: 50px;
}


.section-title {
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: clamp(2rem, 4.5vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}
.section-closing {
  margin-top: 6rem;
  max-width: 900px;
  font-weight: 300;
  line-height: 1.6;
  font-size: 0.9375rem;
  opacity: 0.95;
  color: rgba(26, 26, 26, 0.6);
}

.section-body p {
  font-size: clamp(1rem, 1.4vw, 1.125rem);
  line-height: 1.75;
  color: rgba(26, 26, 26, 0.7);
  margin-bottom: var(--space-sm);
  max-width: 540px;
  font-weight: 300;
}

.section-divider {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  position: relative;
}

.section-divider::after {
  content: '';
  display: block;
  width: 100%;
  height: 1px;
  background: var(--border);
}

@media (min-width: 768px) {
  .section-divider {
    padding: 0 var(--space-lg);
  }
}

.philo-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 120px;
  align-items: stretch;
}

@media (min-width: 768px) {
  .philo-grid {
    grid-template-columns: 1.5fr 1fr;
    gap: var(--space-xl);
    align-items: start;
  }
}

.philosophie-wrapper {
  padding-left: 0;
}

.philo-image {
  position: relative;
}

.philo-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.philo-text {
  display: flex;
  align-items: stretch;
}

.philo-text-inner {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: var(--space-xl);
  border-top: 1px solid var(--border);
}

@media (min-width: 600px) {
  .services-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .service-card {
    border-right: 1px solid var(--border);
  }

  .service-card:nth-child(3n) {
    border-right: none;
  }
}

.service-card {
  padding: var(--space-xl) var(--space-md);
  border-bottom: 1px solid var(--border);
  position: relative;
  transition: background 0.35s ease, transform 0.35s ease;
  opacity: 0;
  transform: translateY(20px);
}

.service-card.in-view {
  opacity: 1;
  transform: translateY(0);
}

.service-card:hover {
  padding-left: var(--space-sm);
}

.service-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 0;
  background: var(--text);
  transition: height 0.4s ease;
}

.service-card:hover::before {
  height: 100%;
}

.service-card:hover {
  background: rgba(0,0,0,0.025);
  transform: translateY(-4px);
}

.service-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-sm);
}

.service-title::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--text);
  transition: width 0.3s ease;
}

.service-card:hover .service-title::after {
  width: 100%;
}

.service-desc {
  font-size: 0.9rem;
  line-height: 1.75;
  color: rgba(26, 26, 26, 0.6);
  max-width: 340px;
}

.service-card:hover .service-desc {
  color: rgba(26, 26, 26, 0.8);
}

.project-block {
  padding: var(--space-2xl) 0;
  position: relative;
  border-top: 1px solid var(--border);
}

.project-header {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  margin-bottom: var(--space-sm);
}

.project-index {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--accent);
}

.project-name {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 300;
  letter-spacing: -0.01em;
}

.project-city {
  font-size: 0.8125rem;
  color: var(--accent);
  letter-spacing: 0.06em;
}

.project-desc {
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(26, 26, 26, 0.6);
  margin-bottom: var(--space-lg);
  max-width: 600px;
  letter-spacing: 0.02em;
}

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

.project-photo-main {
  width: 100%;
  overflow: hidden;
  margin-bottom: var(--space-sm);
}

.project-photo-main img {
  width: 100%;
  height: auto;
  display: block;
  max-height: 560px;
  object-fit: cover;
  transition: transform 1.2s cubic-bezier(0.25, 0.1, 0.25, 1);
  will-change: transform;
}

.project-block.in-view .project-photo-main img {
  transform: scale(1.03);
}

.project-photo-main:hover img {
  transform: scale(1.03);
}

.project-photo-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
}

.project-photo-details img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.project-photo-details img:hover {
  transform: scale(1.03);
}

@media (max-width: 600px) {
  .project-photo-details img {
    height: 160px;
  }
}

.section.projekte {
  position: relative;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(0,0,0,0.02) 50%,
    transparent 100%
  );
}

.section.projekte::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
    rgba(0,0,0,0.03) 1px,
    transparent 1px
  );
  background-size: 100% 180px;
  opacity: 0.25;
  pointer-events: none;
}

.timeline {
  position: relative;
  margin-top: var(--space-lg);
}

.timeline-line {
  display: block;
  position: absolute;
  top: 28px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--border-medium);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 1.2s cubic-bezier(.16,1,.3,1);
}

.timeline.in-view .timeline-line {
  transform: scaleX(1);
}


@media (min-width: 768px) {
  .timeline-line {
    display: block;
    position: absolute;
    top: 28px;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--border-medium);
  }
}

.timeline-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.timeline-step {
  opacity: 0;
  transform: translateY(20px);
  transition: 
    opacity 0.6s ease, 
    transform 0.6s cubic-bezier(.16,1,.3,1);
}

.timeline-step.active {
  opacity: 1;
  transform: translateY(0);
}

@media (min-width: 768px) {
  .timeline-steps {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-md);
  }
}

.timeline-step {
  position: relative;
  padding-top: var(--space-lg);
}

@media (min-width: 768px) {
  .timeline-step {
    padding-top: calc(var(--space-lg) + var(--space-sm));
  }
}

.timeline-number {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--accent);
  display: block;
  margin-bottom: var(--space-sm);
}

@media (min-width: 768px) {
  .timeline-number {
    position: absolute;
    top: 0;
    left: 0;
    background: var(--bg);
    padding-right: var(--space-sm);
    z-index: 1;
  }
}

.timeline-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  margin-bottom: var(--space-xs);
}

.timeline-desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: rgba(26, 26, 26, 0.6);
}

.nachhaltig-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .nachhaltig-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .nachhaltig-grid {
    align-items: start;
  }

  .nachhaltig-text {
    position: sticky;
    top: 140px;
  }
}

.nachhaltig-text {
  max-width: 540px;
}

.nachhaltig-values {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.value-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0;
  background: var(--text);
  transition: height 0.4s ease;
}

.value-item:hover::before {
  height: 100%;
}

.value-item {
  padding: var(--space-xl) var(--space-md);
  text-align: center;
  position: relative;
}
.value-item:nth-child(1),
.value-item:nth-child(2) {
  border-bottom: 1px solid var(--border);
}

.value-item:hover {
  background: rgba(26, 26, 26, 0.03);
  transform: translateY(-3px);
}


@media (min-width: 768px) {
  .value-item {
    padding: var(--space-lg) var(--space-md);
  }
}

.value-label {
font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  position: relative;
}

.accordion {
  margin-top: var(--space-md);
  max-width: 800px;
}

.accordion-item {
  border-top: 1px solid var(--border);
}

.accordion-item:last-child {
  border-bottom: 1px solid var(--border);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--text);
  text-align: left;
  gap: var(--space-md);
  transition: opacity 0.25s ease;
}
.accordion-trigger:hover {
  opacity: 0.75;
}

.accordion-icon {
  flex-shrink: 0;
  color: var(--accent);
  transition: transform 0.3s ease;
}

.accordion-icon-v {
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.accordion-item.open .accordion-icon-v {
  opacity: 0;
  transform: rotate(45deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.25, 0.1, 0.25, 1), padding 0.4s ease;
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(-8px);
  transition:
    max-height 0.5s cubic-bezier(0.25, 0.1, 0.25, 1),
    opacity 0.35s ease,
    transform 0.35s ease;
}

.accordion-item.open .accordion-content {
  max-height: 300px;
  opacity: 1;
  transform: translateY(0);
}


.accordion-content p {
  padding: 0.5rem 0 var(--space-md);
  font-size: 0.95rem;
  line-height: 1.75;
  color: rgba(26,26,26,0.65);
  max-width: 600px;
}

.kontakt-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .kontakt-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: start;
  }
}

.kontakt-direct {
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.kontakt-label {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-xs);
}

.kontakt-link {
  font-size: 0.9375rem;
  color: var(--text);
  text-decoration: none;
  transition: color 0.3s ease;
}

.kontakt-link:hover {
  color: var(--accent);
}

.kontakt-detail {
  font-size: 0.8125rem;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.kontakt-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
}

@media (min-width: 600px) {
  .form-row {
    grid-template-columns: 1fr 1fr;
  }
}

.form-group {
  position: relative;
}

.form-group input,
.form-group textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 300;
  color: var(--text);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-medium);
  padding: var(--space-md) 0 var(--space-xs);
  outline: none;
  transition: border-color 0.3s ease;
  resize: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--text);
}

.form-group label {
  position: absolute;
  top: var(--space-md);
  left: 0;
  font-size: 0.8125rem;
  color: var(--accent);
  letter-spacing: 0.04em;
  pointer-events: none;
  transition: transform 0.3s ease, font-size 0.3s ease, color 0.3s ease;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
  transform: translateY(-1.25rem);
  font-size: 0.6875rem;
  color: var(--text);
}

.form-group textarea {
  min-height: 100px;
}

.form-group-full {
  grid-column: 1 / -1;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.form-checkbox input[type="checkbox"] {
  margin-top: 3px;
  width: 16px;
  height: 16px;
  accent-color: var(--text);
  flex-shrink: 0;
}

.form-checkbox label {
  font-size: 0.8125rem;
  color: rgba(26, 26, 26, 0.6);
  line-height: 1.5;
}

.form-checkbox label a {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.btn-primary {
  background: transparent;
  color: #ffffff;
  border: .5px solid rgb(255, 255, 255,0.5);
}

.btn-primary:hover {
  background: #ffffff;
  color: #111111;
  border-color: #ffffff;
}

.btn-secondary {
  border: 1px solid #ffffff;
  color: #ffffff;
  padding: 1rem 2.8rem;
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.1);
}
  
.btn-submit {
  margin-top: var(--space-sm);
  align-self: flex-start;
}

.form-status {
  font-size: 0.8125rem;
  margin-top: var(--space-xs);
  min-height: 1.5em;
}

.form-status.success {
  color: #4a7c59;
}

.form-status.error {
  color: #8b3a3a;
}

.footer {
  padding: var(--space-2xl) 0 var(--space-lg);
  position: relative;
  border-top: 1px solid var(--border);
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(0,0,0,0.02) 50%,
    transparent 100%
  );
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}
@media (min-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 2fr;
    align-items: start;
  }
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: 12px 40px;
}
@media (min-width: 1024px) {
  .footer-nav {
    grid-template-columns: repeat(3, minmax(120px, 1fr));
  }
}

.footer-brand {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.12em;
}

.footer-detail {
  text-decoration:none;
  opacity: 0.85;
  transition: opacity 0.2s ease;
}

.footer-dev a {
  color: var(--text);
  text-decoration: none;
  position: relative;
}

.footer-dev a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--text);
  transition: width 0.3s ease;
}

.footer-dev a:hover::after {
  width: 100%;
}

.footer-sub {
  display: block;
  margin-top: 8px;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}


.footer-link {
  font-size: 0.9rem;
  color: var(--text);
  text-decoration: none;
  position: relative;
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.footer-link::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--text);
  transition: width 0.3s ease;
}

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

.footer-link:hover {
  opacity: 0.6;
  transform: translateX(4px);
}

.footer-bottom {
  padding-top: var(--space-md);
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 16px;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--accent);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
    rgba(0,0,0,0.03) 1px,
    transparent 1px
  );
  background-size: 100% 160px;
  opacity: 0.2;
  pointer-events: none;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.1, 0.25, 1),
              transform 0.8s cubic-bezier(0.25, 0.1, 0.25, 1);
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

.legal-page {
  padding-top: 120px;
  padding-bottom: var(--space-xl);
  min-height: 80vh;
}

.legal-title {
  font-family: var(--font-heading);
  font-weight: 300;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.015em;
  margin-bottom: var(--space-xl);
}

.legal-content h2 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 400;
  letter-spacing: 0.01em;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--border);
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content p {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: rgba(26, 26, 26, 0.7);
  margin-bottom: var(--space-sm);
  max-width: 680px;
}

@media (max-width: 767px) {
  .hero {
    min-height: 92vh;
    padding-top: 120px;
  }

  .hero-headline {
    margin-bottom: var(--space-sm);
  }

  .project-header {
    flex-direction: column;
    gap: 0.25rem;
  }
}
.form-message {
  display: none;
  font-size: 0.9rem;
  margin-bottom: 16px;
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(5px);
}

.form-message.show {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.form-message.error {
  color: #c62828;
}

.form-message.success {
  color: #2e7d32;
}

.form-group input.error,
.form-group textarea.error {
  border-color: #c62828 !important;
}
.section.nachhaltigkeit {
  background: rgba(26, 26, 26, 0.02);
  position: relative;
}
.section.nachhaltigkeit {
  position: relative;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(0,0,0,0.02) 50%,
    transparent 100%
  );
}

.section.nachhaltigkeit::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
    rgba(0,0,0,0.035) 1px,
    transparent 1px
  );
  background-size: 100% 120px;
  pointer-events: none;
  opacity: 0.3;
}

.metric-number {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 300;
  letter-spacing: -0.02em;
  line-height: 1;
  display: block;
  margin-bottom: 8px;
}

.metric-label {
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 10px;
  display: block;
  max-width: 200px;
  margin: 0 auto;
  line-height: 1.4;
}
.section.arbeitsweise {
  position: relative;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    rgba(0,0,0,0.015) 50%,
    transparent 100%
  );
}

.section.arbeitsweise::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
    rgba(0,0,0,0.04) 1px,
    transparent 1px
  );
  background-size: 100% 160px;
  opacity: 0.25;
  pointer-events: none;
}

.section.philosophie {
  position: relative;
  overflow: hidden;
}

.section.philosophie::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
    rgba(0,0,0,0.035) 1px,
    transparent 1px
  );
  background-size: 100% 140px;
  opacity: 0.25;
  pointer-events: none;
}


.philo-image-inner {
  height: auto;          /* remove fixed height */
  overflow: visible;     /* allow full image */
}

.philo-image-inner img {
  width: 80%;
  height: auto;          /* keep natural ratio */
  display: block;
  object-fit: contain;   /* optional but safe */
}

.philo-image-inner:hover img {
  transform: none;
}

.philo-body {
  position: relative;
  padding-left: 2rem;
}

.philo-body::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 60px;
  background: var(--text);
  opacity: 0.25;
}

@media (min-width: 1024px) {
  .philo-grid {
    gap: 6rem;
  }
}

.nav.menu-open .nav-link,
.nav.menu-open .logo-main,
.nav.menu-open .logo-sub,
.nav.menu-open .nav-toggle span {
  color: #ffffff !important;
  background: #ffffff !important;
}

body.menu-open {
  overflow: hidden;
}
.mobile-close {
  position: absolute;
  top: 15px;
  right: 60px;
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  cursor: pointer;
}

.mobile-close span {
  position: absolute;
  top: 15px;
  left: 0;
  width: 100%;
  height: 1.6px;
  background: #fff;
}

.mobile-close span:first-child {
  transform: rotate(45deg);
}

.mobile-close span:last-child {
  transform: rotate(-45deg);
}

.philo-outer {
  max-width: 1500px;
  margin: 0 auto;
  padding: 0 60px;
}
@media (max-width: 768px) {

  .hero-content {
    left: 0;
    padding: 0 1.5rem;
  }

  .hero-meta {
    margin-bottom: 1rem;
  }

  .hero-kicker {
    font-size: 0.65rem;
    letter-spacing: 0.12em;
  }

  .headline-main {
    font-size: clamp(2.4rem, 10vw, 3.2rem);
    line-height: 1.05;
  }

  .hero-actions {
    margin-top: 1.5rem;
  }

  .btn {
    padding: 0.9rem 1.8rem;
  }

}

@media (max-width: 992px) {

  .philo-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .philo-image-inner img {
    width: 100%;
  }

  .philo-body {
    padding-left: 0;
  }

  .philo-body::before {
    display: none;
  }

}

@media (max-width: 600px) {

  .service-card {
    padding: 2rem 0;
  }

  .services-grid {
    border-top: none;
  }

}

/* @media (max-width: 768px) {

  .project-photo-details {
    grid-template-columns: 1fr;
  }

  .project-photo-details img {
    height: 220px;
  }

  .project-header {
    gap: 0.4rem;
  }

} */
 
 @media (max-width: 768px) {

  .timeline-step {
    padding-top: 0;
  }

  .timeline-line {
    display: none;
  }

}

@media (max-width: 500px) {

  .nachhaltig-values {
    grid-template-columns: 1fr;
  }

  .value-item:nth-child(1),
  .value-item:nth-child(2) {
    border-bottom: 1px solid var(--border);
  }

}

@media (max-width: 768px) {

  .kontakt-grid {
    gap: 4rem;
  }

  .kontakt-form-wrapper {
    margin-top: 2rem;
  }

}

@media (min-width: 1400px) {

  .project-gallery {
    max-width: 1600px;
    margin-left: auto;
    margin-right: auto;
  }

  .project-photo-main img {
    max-height: 720px;
  }

}

.logo {
  position: absolute;
  height: 45px;
  width: auto;
  transition: opacity 0.25s ease;
  left: 45px;
}

.logo.mobile {
  display: none;
}


.logo-white { opacity: 1; }
.logo-black { opacity: 0; }


.nav.scrolled .logo-white { opacity: 0; }
.nav.scrolled .logo-black { opacity: 1; }

@media (max-width: 768px) {
  .nav {
    height: 70px;
  }

  .logo {
    max-height: 38px;
    left: -50px;
  }

  .logo-desktop {
    display: none;
  }
  .logo.mobile {
    display: block;
  }
}

.page-static .nav {
  background: #fff;
}

.page-static .logo-white {
  opacity: 0;
}

.page-static .logo-black {
  opacity: 1;
}

.nav-legal {
  height: 100px;
  background: transparent;
}

.nav-legal .nav-links,
.nav-legal .nav-toggle {
  display: none !important;
}

.nav-back {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-decoration: none;
  color: var(--text);
  position: relative;
  transition: opacity 0.3s ease;
}

.nav-back::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 1px;
  background: var(--text);
  transition: width 0.35s ease;
}

.nav-back:hover {
  opacity: 0.7;
}

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

.page-static .nav {
  backdrop-filter: blur(18px);
  background: rgba(247,247,245,0.85);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}

.page-static .logo-white {
  opacity: 0;
}

.page-static .logo-black {
  opacity: 1;
}