/* =========================================================================
   MONO DIMENSION – Website Styles
   Baut auf tokens.css auf. Corporate-serious, viel Weißraum, kein CTA.
   ========================================================================= */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: var(--fw-regular);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  color: var(--heading);
  line-height: var(--lh-heading);
  letter-spacing: var(--tracking-display);
  font-weight: var(--fw-bold);
  margin: 0;
}

p {
  margin: 0;
}

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

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

:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* --- Helpers ----------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

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

.section-kicker {
  text-transform: uppercase;
  letter-spacing: var(--tracking-caps);
  color: var(--brand-accent);
  font-weight: var(--fw-semibold);
  font-size: var(--fs-small);
  margin: 0 0 var(--space-4);
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 100;
  background: var(--color-petrol);
  color: var(--color-white);
  padding: var(--space-3) var(--space-6);
  border-radius: 0 0 var(--radius-md) 0;
}
.skip-link:focus {
  left: 0;
}

/* --- Reveal-on-scroll -------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* =========================================================================
   Header
   ========================================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-white) 82%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: var(--border-width) solid var(--border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  min-height: 72px;
}

.brand__logo {
  height: 34px;
  width: auto;
}

.site-nav {
  display: flex;
  gap: var(--space-8);
}

.site-nav a {
  position: relative;
  color: var(--text);
  font-weight: var(--fw-medium);
  font-size: var(--fs-small);
  letter-spacing: 0.01em;
  padding-block: var(--space-2);
}
.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--brand-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}
.site-nav a[aria-current="page"] {
  color: var(--brand);
}

/* =========================================================================
   Hero
   ========================================================================= */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(3rem, 8vw, 6rem) clamp(2.5rem, 6vw, 4rem);
  background:
    radial-gradient(120% 120% at 85% 0%, var(--color-petrol-100) 0%, transparent 55%),
    var(--bg);
}

/* dezentes isometrisches Raster als Hintergrund-Textur */
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(120% 90% at 80% 10%, #000 0%, transparent 60%);
  -webkit-mask-image: radial-gradient(120% 90% at 80% 10%, #000 0%, transparent 60%);
  opacity: 0.5;
  pointer-events: none;
}

.hero__layout {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
}

.hero__content {
  max-width: 62rem;
}

.hero__title {
  font-size: var(--fs-display);
  margin-block: 0 var(--space-8);
}
.hero__title-accent {
  color: var(--brand-accent);
}

.hero__lead {
  max-width: 44ch;
  font-size: clamp(1.125rem, 1.6vw, 1.375rem);
  color: var(--text-muted);
  line-height: 1.55;
}

.hero__photo {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: var(--border-width) solid var(--border);
}
.hero__photo img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

@media (min-width: 900px) {
  .hero__layout {
    grid-template-columns: 1.05fr 0.95fr;
    gap: var(--space-16);
  }
  .hero__photo img {
    aspect-ratio: 5 / 4;
  }
}

.hero__mark {
  position: absolute;
  z-index: 1;
  right: clamp(-2rem, 2vw, 4rem);
  bottom: clamp(-2rem, 2vw, 3rem);
  width: clamp(300px, 34vw, 460px);
  opacity: 0.9;
  filter: saturate(112%);
  transform: rotate(-4deg);
  pointer-events: none;
  animation: mark-in 0.9s var(--ease) both;
}
.hero__mark img {
  width: 100%;
}

@keyframes mark-in {
  from { opacity: 0; transform: rotate(-4deg) translateY(24px) scale(0.96); }
  to { opacity: 0.9; transform: rotate(-4deg); }
}
@media (prefers-reduced-motion: reduce) {
  .hero__mark { animation: none; }
}

/* Mark nur auf schmalen Screens als dezentes Watermark */
@media (min-width: 900px) {
  .hero__mark {
    display: none;
  }
}

@media (max-width: 767px) {
  .hero__mark {
    right: -12%;
    bottom: auto;
    top: 46%;
    width: 78%;
    opacity: 0.1;
    animation: none;
  }
}

/* =========================================================================
   Über uns
   ========================================================================= */
.section--about {
  background: var(--bg);
}

.about {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
}

.about__title {
  font-size: var(--fs-h1);
  margin-block: var(--space-2);
}

.about__year {
  color: var(--text-muted);
  font-size: var(--fs-small);
  text-transform: uppercase;
  letter-spacing: var(--tracking-caps);
}
.about__year span {
  color: var(--brand);
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: var(--fs-h3);
  letter-spacing: 0;
}

.about__body {
  display: grid;
  gap: var(--space-6);
  max-width: 68ch;
  font-size: clamp(1.0625rem, 1.3vw, 1.25rem);
}

@media (min-width: 900px) {
  .about {
    grid-template-columns: 0.8fr 1.2fr;
    gap: var(--space-16);
    align-items: start;
  }
}

/* =========================================================================
   Visuals (Digitalisierung mit Menschen)
   ========================================================================= */
.section--visuals {
  background: var(--bg-muted);
  border-block: var(--border-width) solid var(--border);
  padding-block: clamp(2.5rem, 6vw, 4rem);
}

.visuals__head {
  max-width: 68ch;
  margin-bottom: var(--space-8);
}
.visuals__head h2 {
  font-size: var(--fs-h2);
  margin-bottom: var(--space-4);
}
.visuals__lead {
  color: var(--text-muted);
  font-size: clamp(1.0625rem, 1.3vw, 1.25rem);
  line-height: 1.55;
}

.visuals__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .visuals__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.visual-card {
  margin: 0;
  background: var(--surface);
  border: var(--border-width) solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.visual-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.visual-card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}
.visual-card figcaption {
  padding: var(--space-6);
  color: var(--text-muted);
  font-size: var(--fs-body);
  line-height: 1.55;
}
.visual-card figcaption strong {
  display: block;
  color: var(--heading);
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-2);
}

/* =========================================================================
   Leistungen
   ========================================================================= */
.section--services {
  background: var(--bg-muted);
  border-block: var(--border-width) solid var(--border);
}

.services__head {
  margin-bottom: var(--space-12);
}
.services__head h2 {
  font-size: var(--fs-h2);
}
.services__lead {
  max-width: 68ch;
  margin-top: var(--space-4);
  color: var(--text-muted);
  font-size: clamp(1.0625rem, 1.3vw, 1.25rem);
  line-height: 1.55;
}

.services__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }
}

.card {
  background: var(--surface);
  border: var(--border-width) solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-petrol-300);
}

.card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: var(--color-petrol-100);
  color: var(--brand);
  margin-bottom: var(--space-6);
}
.card__icon svg {
  width: 40px;
  height: 40px;
}
.card__icon .icon-accent {
  stroke: var(--color-teal);
}

.card__title {
  font-size: var(--fs-h3);
  color: var(--heading);
  margin-bottom: var(--space-3);
}

.card__text {
  color: var(--text-muted);
  font-size: var(--fs-body);
}

/* =========================================================================
   Footer / Impressum
   ========================================================================= */
.site-footer {
  background: var(--color-petrol-900);
  color: color-mix(in srgb, var(--color-white) 82%, transparent);
  padding-block: var(--space-16) var(--space-12);
  font-size: var(--fs-small);
}

.site-footer__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--space-8) var(--space-12);
}
.site-footer__brand {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  justify-self: start;
}
.site-footer__brand img {
  width: 36px;
  height: auto;
}
.site-footer__brand p {
  color: color-mix(in srgb, var(--color-white) 70%, transparent);
  font-size: var(--fs-small);
  letter-spacing: 0.01em;
  margin: 0;
  max-width: 22ch;
}

.site-footer__copy {
  grid-column: 2;
  justify-self: center;
  text-align: center;
  color: color-mix(in srgb, var(--color-white) 55%, transparent);
  margin: 0;
}

.site-footer__nav {
  grid-column: 3;
  justify-self: end;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-3);
  text-align: right;
}
.site-footer__nav a {
  position: relative;
  color: color-mix(in srgb, var(--color-white) 85%, transparent);
  font-weight: var(--fw-medium);
  font-size: var(--fs-small);
  transition: color var(--dur) var(--ease);
}
.site-footer__nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -3px;
  width: 100%;
  height: 2px;
  background: var(--color-teal);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur) var(--ease);
}
.site-footer__nav a:hover,
.site-footer__nav a:focus-visible {
  color: var(--color-white);
}
.site-footer__nav a:hover::after,
.site-footer__nav a:focus-visible::after,
.site-footer__nav a[aria-current="page"]::after {
  transform: scaleX(1);
}
.site-footer__nav a[aria-current="page"] {
  color: var(--color-white);
}

@media (max-width: 767px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
    justify-items: start;
    gap: var(--space-8);
  }
  .site-footer__brand,
  .site-footer__copy,
  .site-footer__nav {
    grid-column: 1;
    justify-self: start;
    align-items: flex-start;
    text-align: left;
  }
  .site-footer__nav a::after {
    right: auto;
    left: 0;
    transform-origin: left;
  }
}

/* =========================================================================
   Inhaltsseiten (Impressum, Datenschutz)
   ========================================================================= */
.page-header {
  position: relative;
  overflow: hidden;
  padding-block: clamp(3.5rem, 9vw, 6.5rem) clamp(2rem, 5vw, 3.5rem);
  background:
    radial-gradient(120% 130% at 90% 0%, var(--color-petrol-100) 0%, transparent 55%),
    var(--bg);
  border-bottom: var(--border-width) solid var(--border);
}
.page-header__title {
  font-size: var(--fs-h1);
  margin-block: var(--space-2) var(--space-4);
}
.page-header__lead {
  max-width: 60ch;
  color: var(--text-muted);
  font-size: clamp(1.0625rem, 1.3vw, 1.25rem);
}

.legal {
  padding-block: clamp(2.5rem, 6vw, 4.5rem) var(--section-gap);
}
.legal__inner {
  max-width: 72ch;
}
.legal h2 {
  font-size: var(--fs-h3);
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
}
.legal h2:first-child {
  margin-top: 0;
}
.legal h3 {
  font-size: var(--fs-body-lg, 1.125rem);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
  color: var(--heading);
}
.legal p {
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}
.legal a {
  text-decoration: underline;
  text-underline-offset: 2px;
}
.legal a:hover {
  color: var(--color-petrol-700);
}

.legal__address {
  font-style: normal;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: var(--space-4);
}
.legal__address strong {
  color: var(--heading);
}

.legal__dl {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-1) var(--space-6);
  margin: 0 0 var(--space-4);
}
@media (min-width: 560px) {
  .legal__dl {
    grid-template-columns: minmax(14rem, auto) 1fr;
  }
}
.legal__dl dt {
  color: var(--text-muted);
  font-size: var(--fs-small);
}
.legal__dl dd {
  margin: 0 0 var(--space-2);
  color: var(--text);
  font-weight: var(--fw-medium);
}

.legal__list {
  margin: 0 0 var(--space-4);
  padding-left: var(--space-6);
  color: var(--text-muted);
}
.legal__list li {
  margin-bottom: var(--space-2);
}
.legal__list strong {
  color: var(--text);
  font-weight: var(--fw-semibold);
}

.legal__meta {
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: var(--border-width) solid var(--border);
  font-size: var(--fs-small);
  color: var(--text-muted);
}