/* --------------------------------------------------------------------------
   Design tokens
   -------------------------------------------------------------------------- */

:root {
  --color-bg: #fafafa;
  --color-bg-alt: #f2f2f0;
  --color-surface: #ffffff;
  --color-text: #1c1c1a;
  --color-text-muted: #4a4a47;
  --color-text-subtle: #6b6b67;
  --color-border: #deded9;
  --color-accent: #3d4f5f;
  --color-accent-soft: #e8ecef;

  --font-sans: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  --max-width: 68rem;
  --line-height: 1.65;
  --line-height-tight: 1.25;

  --radius: 4px;
  --radius-lg: 8px;
  --transition: 150ms ease;
  --shadow-soft: 0 12px 40px rgba(28, 28, 26, 0.08);
}

/* --------------------------------------------------------------------------
   Reset & base
   -------------------------------------------------------------------------- */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: var(--line-height);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

/* --------------------------------------------------------------------------
   Accessibility
   -------------------------------------------------------------------------- */

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  z-index: 100;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-text);
  color: var(--color-surface);
  text-decoration: none;
  border-radius: var(--radius);
}

.skip-link:focus {
  top: var(--space-sm);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   Links — global default
   -------------------------------------------------------------------------- */

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.1em;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-text);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

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

.section--alt {
  background-color: var(--color-bg-alt);
}

.section--contact {
  padding-block: var(--space-lg) var(--space-xl);
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background-color: rgba(250, 250, 250, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding-block: var(--space-sm) calc(var(--space-sm) - 2px);
}

.site-name {
  margin: 0 auto 0 0;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--color-text);
}

.site-name__link {
  color: inherit;
  text-decoration: none;
}

.site-name__link:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.site-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-md);
  margin: 0;
  padding: 0;
  list-style: none;
}

.site-nav a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.site-nav a:hover {
  color: var(--color-text);
  text-decoration: none;
}

.site-lang {
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  text-decoration: none;
  padding-left: var(--space-sm);
  border-left: 1px solid var(--color-border);
  transition: color var(--transition);
}

.site-lang:hover {
  color: var(--color-text);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  padding-block: var(--space-xl) var(--space-2xl);
  border-bottom: 1px solid var(--color-border);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.hero__content {
  max-width: 36rem;
}

.hero__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.hero__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.hero__label {
  margin: 0 0 var(--space-md);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-subtle);
}

.hero h1 {
  margin: 0 0 var(--space-md);
  font-size: clamp(1.75rem, 4vw, 2.375rem);
  font-weight: 600;
  line-height: var(--line-height-tight);
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.hero__subheadline {
  margin: 0 0 var(--space-lg);
  font-size: clamp(1.0625rem, 2vw, 1.1875rem);
  line-height: var(--line-height);
  color: var(--color-text-muted);
}

.hero__intro {
  margin: 0;
  color: var(--color-text);
}

.hero__cta {
  margin: var(--space-lg) 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.7rem 1.25rem;
  font: inherit;
  font-size: 0.9375rem;
  font-weight: 500;
  line-height: 1.2;
  border: 1px solid transparent;
  border-radius: var(--radius);
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition),
    border-color var(--transition), transform var(--transition);
}

.button:hover {
  text-decoration: none;
}

.button--primary {
  background-color: var(--color-accent);
  color: var(--color-surface);
}

.button--primary:hover {
  background-color: var(--color-text);
  color: var(--color-surface);
}

.button--ghost {
  background-color: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.button--ghost:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

.button__arrow {
  transition: transform var(--transition);
}

.button:hover .button__arrow {
  transform: translateX(2px);
}

/* --------------------------------------------------------------------------
   Typography — sections
   -------------------------------------------------------------------------- */

h2 {
  margin: 0 0 var(--space-md);
  font-size: clamp(1.375rem, 2.5vw, 1.625rem);
  font-weight: 600;
  line-height: var(--line-height-tight);
  letter-spacing: -0.015em;
  color: var(--color-text);
}

h3 {
  margin: 0 0 var(--space-xs);
  font-size: 1.0625rem;
  font-weight: 600;
  line-height: var(--line-height-tight);
  color: var(--color-text);
}

.section__lead {
  margin: 0 0 var(--space-lg);
  max-width: 40rem;
  color: var(--color-text-muted);
}

strong {
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Split sections (image + text)
   -------------------------------------------------------------------------- */

.split-section {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.split-section--reverse {
  grid-template-columns: 1.1fr 1fr;
}

.split-section--reverse .split-section__content {
  order: -1;
}

.split-section__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.split-section__media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   Profil
   -------------------------------------------------------------------------- */

.profile {
  display: grid;
  grid-template-columns: minmax(0, 18rem) 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}

.profile__media {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.profile__media img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.profile__content p {
  margin: 0 0 var(--space-md);
  max-width: 36rem;
  color: var(--color-text-muted);
}

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

@media (max-width: 760px) {
  .profile {
    grid-template-columns: 1fr;
  }

  .profile__media {
    max-width: 16rem;
  }
}

/* --------------------------------------------------------------------------
   Tätigkeitsprofil
   -------------------------------------------------------------------------- */

.profile-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-sm);
  max-width: 44rem;
}

.profile-list li {
  position: relative;
  padding-left: 1.375rem;
  color: var(--color-text);
}

.profile-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Leistungen — cards
   -------------------------------------------------------------------------- */

.card-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 20rem), 1fr));
}

.card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
}

.card__media {
  margin: 0;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 300ms ease;
}

.card:hover .card__media img {
  transform: scale(1.03);
}

.card__body {
  padding: var(--space-md);
}

.card p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Banner sections
   -------------------------------------------------------------------------- */

.section--banner {
  position: relative;
  padding-block: var(--space-2xl);
  color: var(--color-surface);
}

.section-banner {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.section-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(28, 28, 26, 0.88) 0%,
    rgba(61, 79, 95, 0.82) 100%
  );
}

.section-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.section--banner__content {
  position: relative;
  z-index: 1;
}

.section--banner h2 {
  color: var(--color-surface);
}

.section-banner-inline {
  margin: 0 0 var(--space-lg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
}

.section-banner-inline img {
  width: 100%;
  aspect-ratio: 21 / 8;
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   Photo strip
   -------------------------------------------------------------------------- */

.photo-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.photo-strip__item {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.photo-strip__item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* --------------------------------------------------------------------------
   Abgrenzung
   -------------------------------------------------------------------------- */

.highlight-box {
  max-width: 44rem;
  padding: var(--space-lg);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius);
}

.highlight-box p {
  margin: 0;
}

.highlight-box p + p {
  margin-top: var(--space-md);
  color: var(--color-text-muted);
}

.section--banner .highlight-box {
  background-color: rgba(255, 255, 255, 0.96);
  border-left-color: var(--color-surface);
  backdrop-filter: blur(4px);
}

.section--banner .highlight-box p + p {
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   Arbeitsergebnisse
   -------------------------------------------------------------------------- */

.results-grid {
  display: grid;
  gap: var(--space-xs) var(--space-lg);
  margin: 0;
  padding: 0;
  list-style: none;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 16rem), 1fr));
  max-width: 52rem;
}

.results-grid li {
  padding: var(--space-xs) 0;
  font-size: 0.9375rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

/* --------------------------------------------------------------------------
   Arbeitsweise
   -------------------------------------------------------------------------- */

.process-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-sm);
  max-width: 44rem;
  counter-reset: none;
}

.process-list li {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
}

.process-list__step {
  flex-shrink: 0;
  width: 1.75rem;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-accent);
  text-align: center;
}

.process-list__text {
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Einsatzbereiche
   -------------------------------------------------------------------------- */

.areas-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin: 0;
  padding: 0;
  list-style: none;
  max-width: 48rem;
}

.areas-list li {
  padding: 0.4rem 0.875rem;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
}

/* --------------------------------------------------------------------------
   Kontakt
   -------------------------------------------------------------------------- */

.section--contact p {
  margin: 0;
  max-width: 36rem;
  color: var(--color-text-muted);
}

.contact-email {
  margin-top: var(--space-sm) !important;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  padding-block: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.site-footer__inner p {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
}

.site-footer__inner p + p {
  margin-top: var(--space-xs);
}

.site-footer a {
  color: var(--color-text-muted);
}

.site-footer a:hover {
  color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Impressum
   -------------------------------------------------------------------------- */

.container--narrow {
  max-width: 44rem;
}

.section--imprint {
  padding-block: var(--space-xl) var(--space-2xl);
}

.section--imprint h1 {
  margin: 0 0 var(--space-xs);
  font-size: clamp(1.75rem, 4vw, 2.125rem);
  font-weight: 600;
  line-height: var(--line-height-tight);
}

.imprint__subtitle {
  margin: 0 0 var(--space-xl);
  font-size: 1.125rem;
  font-weight: 400;
  color: var(--color-text-muted);
}

.imprint h3 {
  margin: var(--space-xl) 0 var(--space-md);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
}

.imprint h3:first-child {
  margin-top: 0;
}

.imprint h4 {
  margin: var(--space-lg) 0 var(--space-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text);
}

.imprint p {
  margin: 0 0 var(--space-md);
  color: var(--color-text-muted);
}

.imprint ul,
.imprint ol {
  margin: 0 0 var(--space-md);
  padding-left: 1.25rem;
  color: var(--color-text-muted);
}

.imprint li + li {
  margin-top: var(--space-xs);
}

/* --------------------------------------------------------------------------
   Responsive — header
   -------------------------------------------------------------------------- */

@media (max-width: 900px) {
  .hero__grid,
  .split-section,
  .split-section--reverse {
    grid-template-columns: 1fr;
  }

  .split-section--reverse .split-section__content {
    order: 0;
  }

  .hero__media {
    order: -1;
  }

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

@media (max-width: 640px) {
  .site-header__inner {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "name lang"
      "nav  nav";
    column-gap: var(--space-md);
    row-gap: var(--space-xs);
    align-items: center;
  }

  .site-name {
    grid-area: name;
    margin: 0;
  }

  .site-nav {
    grid-area: nav;
  }

  .site-lang {
    grid-area: lang;
  }

  .hero {
    padding-block: var(--space-xl) var(--space-lg);
  }

  .section {
    padding-block: var(--space-lg);
  }

  .section--banner {
    padding-block: var(--space-xl);
  }
}

/* --------------------------------------------------------------------------
   Reduced motion
   -------------------------------------------------------------------------- */

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

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }

  .card:hover {
    transform: none;
  }

  .card:hover .card__media img {
    transform: none;
  }
}