:root {
  --navy: #06172d;
  --navy-2: #0c2747;
  --blue: #10466f;
  --steel: #edf3f8;
  --white: #ffffff;
  --muted: #d7e0ea;
  --ink: #102033;
  --line: #dfe6ee;
  --accent: #f5a524;
  --accent-2: #ffc94d;
  --accent-soft: #fff3d6;
  --shadow: 0 24px 70px rgba(6, 23, 45, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--white);
}

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

button,
input,
textarea {
  font: inherit;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  min-height: 76px;
  padding: 18px clamp(20px, 5vw, 64px);
  color: var(--white);
  transition: background 180ms ease, box-shadow 180ms ease, min-height 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  min-height: 66px;
  background: rgba(6, 23, 45, 0.94);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(14px);
}

.brand {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 8px;
  color: var(--navy);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 3vw, 34px);
  font-weight: 700;
  font-size: 0.95rem;
}

.language-switch {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 4px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.lang-btn {
  min-width: 38px;
  height: 32px;
  border: 0;
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.78);
  background: transparent;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 800;
}

.lang-btn:hover,
.lang-btn.is-active {
  color: var(--navy);
  background: var(--accent-2);
}

.main-nav a {
  opacity: 0.86;
}

.main-nav a:hover {
  color: var(--accent-2);
  opacity: 1;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  color: var(--white);
  background: transparent;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
}

.hero {
  position: relative;
  display: grid;
  min-height: 92vh;
  align-items: center;
  overflow: hidden;
  padding: 140px clamp(22px, 7vw, 90px) 96px;
  color: var(--white);
  background:
    radial-gradient(circle at 82% 18%, rgba(245, 165, 36, 0.28), transparent 24%),
    var(--navy);
}

.hero-media,
.hero-media img,
.hero-shade {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.54;
}

.hero-shade {
  background:
    linear-gradient(90deg, rgba(6, 23, 45, 0.98) 0%, rgba(6, 23, 45, 0.74) 48%, rgba(6, 23, 45, 0.18) 100%),
    linear-gradient(0deg, rgba(6, 23, 45, 0.86), rgba(6, 23, 45, 0.06));
}

.hero-content {
  position: relative;
  width: min(760px, 100%);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent-2);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 860px;
  margin-bottom: 22px;
  font-size: 5.7rem;
  line-height: 0.94;
  letter-spacing: 0;
  overflow-wrap: normal;
}

html[lang="de"] h1 {
  max-width: 980px;
  font-size: 4.25rem;
  line-height: 1.02;
}

h2 {
  margin-bottom: 18px;
  color: var(--navy);
  font-size: 4rem;
  line-height: 1;
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

h3 {
  margin-bottom: 12px;
  color: var(--navy);
  font-size: 1.28rem;
}

.hero p:not(.eyebrow) {
  max-width: 650px;
  color: var(--muted);
  font-size: 1.18rem;
  line-height: 1.72;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 800;
  text-align: center;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: var(--navy);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 14px 34px rgba(245, 165, 36, 0.34);
}

.button.secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.34);
  background: rgba(255, 255, 255, 0.08);
}

.scroll-cue {
  position: absolute;
  right: clamp(22px, 5vw, 70px);
  bottom: 34px;
  width: 26px;
  height: 42px;
  border: 2px solid rgba(255, 255, 255, 0.46);
  border-radius: 20px;
}

.scroll-cue::after {
  position: absolute;
  top: 8px;
  left: 50%;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent-2);
  content: "";
  transform: translateX(-50%);
  animation: scrollDot 1.6s infinite;
}

@keyframes scrollDot {
  0%, 100% { transform: translate(-50%, 0); opacity: 0.45; }
  50% { transform: translate(-50%, 13px); opacity: 1; }
}

section:not(.hero) {
  padding: clamp(82px, 11vw, 140px) clamp(22px, 6vw, 84px);
}

.section-heading {
  width: min(880px, 100%);
  margin-bottom: 42px;
}

.section-heading.compact {
  width: min(760px, 100%);
}

.section-heading p:not(.eyebrow) {
  color: #526276;
  font-size: 1.06rem;
  line-height: 1.7;
}

.values {
  position: relative;
  background:
    linear-gradient(180deg, #ffffff 0%, #f5f8fb 48%, #eef4f8 100%);
}

.values::before {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(16, 70, 111, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 70, 111, 0.06) 1px, transparent 1px);
  background-size: 42px 42px;
  content: "";
  pointer-events: none;
}

.values > * {
  position: relative;
}

.value-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.value-card {
  position: relative;
  overflow: hidden;
  min-height: 250px;
  padding: 34px 30px 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(247, 251, 255, 0.98));
  box-shadow: 0 18px 50px rgba(16, 32, 51, 0.1);
}

.value-card::before {
  position: absolute;
  inset: 0 0 auto;
  height: 5px;
  background: linear-gradient(90deg, var(--accent), var(--blue));
  content: "";
}

.icon {
  display: inline-grid;
  width: 74px;
  height: 74px;
  margin-bottom: 28px;
  place-items: center;
  border-radius: 8px;
  color: var(--navy);
  background: linear-gradient(135deg, var(--accent-soft), #ffffff);
  box-shadow: inset 0 0 0 1px rgba(245, 165, 36, 0.34), 0 14px 30px rgba(16, 32, 51, 0.1);
}

.icon svg {
  width: 54px;
  height: 54px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 5;
}

.icon text {
  fill: currentColor;
  stroke: none;
  font-family: Inter, Arial, sans-serif;
  font-size: 8px;
  font-weight: 900;
  letter-spacing: 0;
}

.safety-icon,
.reliability-icon {
  color: var(--blue);
}

.qualification-icon {
  color: var(--navy);
}

.value-card p {
  color: #5b6878;
  line-height: 1.72;
}

.about {
  display: grid;
  grid-template-columns: minmax(300px, 0.58fr) minmax(0, 0.9fr);
  gap: clamp(34px, 6vw, 80px);
  align-items: center;
  background: var(--white);
}

.about-visual {
  min-height: 430px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(245, 165, 36, 0.16), transparent 42%),
    linear-gradient(160deg, var(--navy) 0%, var(--blue) 100%);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.about-visual::before {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(6, 23, 45, 0.04), rgba(6, 23, 45, 0.58)),
    linear-gradient(135deg, rgba(245, 165, 36, 0.22), transparent 36%);
  content: "";
  pointer-events: none;
}

.about-visual::after {
  position: absolute;
  z-index: 2;
  right: 38px;
  top: 46px;
  width: 170px;
  height: 170px;
  border: 18px solid rgba(255, 201, 77, 0.24);
  border-radius: 50%;
  content: "";
}

.about-visual img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.about-photo-badge {
  position: absolute;
  left: 24px;
  bottom: 24px;
  z-index: 3;
  padding: 10px 13px;
  border-radius: 8px;
  color: var(--navy);
  background: var(--accent-2);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.22);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
}

.about-content p:not(.eyebrow) {
  color: #526276;
  font-size: 1.05rem;
  line-height: 1.78;
}

.about-badges {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 30px;
}

.about-badges span {
  position: relative;
  min-height: 84px;
  display: grid;
  place-items: center;
  padding: 22px 16px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--navy);
  background:
    linear-gradient(135deg, rgba(255, 201, 77, 0.16), transparent 42%),
    #f7fafc;
  font-weight: 800;
  text-align: center;
  box-shadow: 0 12px 26px rgba(16, 32, 51, 0.07);
  overflow: hidden;
}

.about-badges span::before {
  position: absolute;
  top: 10px;
  left: 12px;
  width: 17px;
  height: 24px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  clip-path: polygon(46% 0, 100% 0, 63% 39%, 100% 39%, 30% 100%, 45% 55%, 0 55%);
  content: "";
  filter: drop-shadow(0 4px 8px rgba(245, 165, 36, 0.28));
}

.projects {
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(245, 165, 36, 0.1), transparent 34%),
    linear-gradient(180deg, var(--navy), #071f38 100%);
}

.projects h2,
.projects h3 {
  color: var(--white);
}

.projects .section-heading p:not(.eyebrow) {
  color: var(--muted);
}

.gallery-shell {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(310px, 0.55fr);
  gap: 24px;
  align-items: stretch;
}

.compare {
  position: relative;
  min-height: 520px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: var(--navy-2);
  box-shadow: var(--shadow);
  touch-action: none;
}

.compare img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.after-img {
  clip-path: inset(0 0 0 50%);
}

.compare-slider {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: ew-resize;
}

.compare::after {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--split, 50%);
  width: 3px;
  background: var(--accent-2);
  content: "";
  transform: translateX(-50%);
  pointer-events: none;
}

.compare::before {
  position: absolute;
  top: 50%;
  left: var(--split, 50%);
  z-index: 2;
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border-radius: 50%;
  color: var(--navy);
  background: var(--accent-2);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.24);
  content: "↔";
  font-weight: 900;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.label {
  position: absolute;
  top: 18px;
  z-index: 3;
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--white);
  background: rgba(6, 23, 45, 0.76);
  font-size: 0.82rem;
  font-weight: 800;
  transition: opacity 140ms ease, transform 140ms ease;
}

.label.is-hidden {
  opacity: 0;
  transform: translateY(-6px);
  pointer-events: none;
}

.label.before {
  left: 18px;
}

.label.after {
  right: 18px;
}

.project-panel {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 520px;
  padding: 30px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(18, 63, 98, 0.9), rgba(12, 39, 71, 0.98)),
    linear-gradient(135deg, rgba(245, 165, 36, 0.18), transparent 45%);
}

.project-count {
  color: var(--accent-2);
  font-weight: 800;
}

.project-panel p:not(.project-count) {
  color: var(--muted);
  line-height: 1.72;
}

.gallery-controls {
  display: flex;
  gap: 12px;
  margin-top: 28px;
}

.circle-btn {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  color: var(--white);
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
  font-size: 1.8rem;
  line-height: 1;
}

.circle-btn:hover {
  color: var(--navy);
  background: var(--accent);
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.72fr);
  gap: clamp(34px, 6vw, 80px);
  align-items: start;
  background:
    linear-gradient(120deg, #f8fbfe 0%, #eef4f8 100%);
}

.contact-info p:not(.eyebrow) {
  color: #526276;
  font-size: 1.06rem;
  line-height: 1.72;
}

.contact-list {
  display: grid;
  gap: 12px;
  margin-top: 30px;
  font-weight: 800;
}

.contact-list a,
.contact-list span {
  padding-left: 18px;
  border-left: 4px solid var(--accent);
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, #ffffff, #fbfdff);
  box-shadow: var(--shadow);
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: var(--navy);
  font-weight: 800;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid #ccd7e2;
  border-radius: 8px;
  padding: 14px 15px;
  color: var(--ink);
  background: #fbfdff;
  outline: 0;
}

.contact-form textarea {
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(245, 165, 36, 0.16);
}

.form-note {
  min-height: 22px;
  margin: 0;
  color: var(--blue);
  font-weight: 700;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 28px clamp(22px, 6vw, 84px);
  color: var(--muted);
  background: var(--navy);
}

.site-footer a {
  color: var(--accent-2);
  font-weight: 800;
}

.section-observe {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 640ms ease, transform 640ms ease;
}

.section-observe.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  h1 {
    font-size: 4.05rem;
  }

  html[lang="de"] h1 {
    font-size: 2.85rem;
  }

  h2 {
    font-size: 3rem;
  }

  .menu-toggle {
    display: block;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    right: 18px;
    left: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px;
    border-radius: 8px;
    background: rgba(6, 23, 45, 0.98);
  }

  .language-switch {
    order: 1;
  }

  .menu-toggle {
    order: 2;
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav a {
    padding: 14px 12px;
  }

  .value-grid,
  .gallery-shell,
  .about,
  .contact {
    grid-template-columns: 1fr;
  }

  .compare,
  .project-panel {
    min-height: 430px;
  }
}

@media (max-width: 560px) {
  .site-header {
    padding-inline: 16px;
  }

  .hero {
    min-height: 88vh;
    padding: 120px 18px 78px;
  }

  h1 {
    font-size: 2.72rem;
  }

  html[lang="de"] h1 {
    font-size: 1.88rem;
    line-height: 1.12;
  }

  h2 {
    font-size: 2.25rem;
  }

  .hero p:not(.eyebrow) {
    font-size: 1.04rem;
  }

  .header-actions {
    gap: 10px;
  }

  .language-switch {
    padding: 3px;
  }

  .lang-btn {
    min-width: 34px;
    height: 30px;
  }

  section:not(.hero) {
    padding-inline: 18px;
  }

  .value-card,
  .project-panel,
  .contact-form {
    padding: 22px;
  }

  .compare,
  .project-panel {
    min-height: 360px;
  }

  .about-visual {
    min-height: 330px;
  }

  .about-badges {
    grid-template-columns: 1fr;
  }

  .site-footer {
    flex-direction: column;
  }
}