/* ===== Design Tokens (Visitenkarte) ===== */
:root {
  --color-dark: #1a1a1b;
  --color-dark-soft: #252526;
  --color-light: #ececec;
  --color-light-soft: #f4f4f4;
  --color-accent: #1a7fd4;
  --color-accent-hover: #1568ad;
  --color-text-dark: #1a1a1b;
  --color-text-light: #ffffff;
  --color-text-muted: #555555;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --container-max: 72rem;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --radius: 0.375rem;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
}

/* ===== Reset & Base (Mobile First) ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text-dark);
  background-color: var(--color-light-soft);
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover,
a:focus-visible {
  color: var(--color-accent-hover);
}

address {
  font-style: normal;
}

ul {
  list-style: none;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--spacing-sm);
  z-index: 1000;
  padding: var(--spacing-xs) var(--spacing-sm);
  background: var(--color-accent);
  color: var(--color-text-light);
  border-radius: var(--radius);
}

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

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--spacing-md);
}

/* ===== Header ===== */
.header {
  background-color: var(--color-dark);
  color: var(--color-text-light);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  padding-block: var(--spacing-sm);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text-light);
  text-decoration: none;
}

.logo:hover,
.logo:focus-visible {
  color: var(--color-text-light);
}

.logo__asg {
  font-size: clamp(1.75rem, 5vw, 2.25rem);
  font-weight: 800;
  letter-spacing: 0.04em;
  line-height: 1;
}

.logo__divider {
  width: 2px;
  height: 2.5rem;
  background-color: rgba(255, 255, 255, 0.35);
  flex-shrink: 0;
}

.logo__text {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.logo__car {
  width: 5rem;
  height: auto;
  color: var(--color-accent);
}

.logo__name {
  font-size: 0.8125rem;
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-sm) var(--spacing-md);
  width: 100%;
}

.nav a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.9375rem;
  font-weight: 500;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--color-text-light);
}

.nav__cta {
  background-color: var(--color-accent);
  color: var(--color-text-light) !important;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-weight: 600;
}

.nav__cta:hover,
.nav__cta:focus-visible {
  background-color: var(--color-accent-hover);
  color: var(--color-text-light) !important;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.5rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  text-decoration: none;
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-text-light);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background-color: var(--color-accent-hover);
  color: var(--color-text-light);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-text-light);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn--secondary:hover,
.btn--secondary:focus-visible {
  border-color: var(--color-text-light);
  color: var(--color-text-light);
}

/* ===== Hero ===== */
.hero {
  background-color: var(--color-dark);
  color: var(--color-text-light);
  padding-block: var(--spacing-xl) var(--spacing-lg);
  position: relative;
  overflow: hidden;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: clamp(1.75rem, 6vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 20ch;
  margin-bottom: var(--spacing-sm);
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.125rem);
  color: rgba(255, 255, 255, 0.75);
  max-width: 42ch;
  margin-bottom: var(--spacing-lg);
}

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

.hero__graphic {
  margin-top: var(--spacing-lg);
  opacity: 0.9;
}

.hero__car-line {
  width: 100%;
  max-width: 28rem;
  color: var(--color-accent);
}

/* ===== Services ===== */
.services {
  background-color: var(--color-dark-soft);
  color: var(--color-text-light);
  padding-block: var(--spacing-xl);
}

.services h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.services__intro {
  color: rgba(255, 255, 255, 0.7);
  max-width: 55ch;
  margin-bottom: var(--spacing-lg);
  font-size: 0.9375rem;
}

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

.service-card {
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.service-card:hover {
  border-color: rgba(26, 127, 212, 0.4);
  background-color: rgba(255, 255, 255, 0.07);
}

.service-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--color-text-light);
}

.service-card p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.5;
}

/* ===== Contact ===== */
.contact {
  background-color: var(--color-light);
  padding-block: var(--spacing-xl);
}

.contact h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  margin-bottom: var(--spacing-lg);
  color: var(--color-text-dark);
}

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

.contact__person {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--spacing-xs);
}

.contact__address {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.contact__links li {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.contact__label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.contact__links a {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text-dark);
}

.contact__links a:hover,
.contact__links a:focus-visible {
  color: var(--color-accent);
}

.contact__cta {
  width: 100%;
  text-align: center;
}

.contact__map {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  min-height: 16rem;
  background-color: #ccc;
}

.contact__map iframe {
  width: 100%;
  height: 16rem;
  border: 0;
}

/* ===== Footer ===== */
.footer {
  background-color: var(--color-dark);
  color: rgba(255, 255, 255, 0.6);
  padding-block: var(--spacing-md);
  font-size: 0.8125rem;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  text-align: center;
}

.footer__services {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== Tablet (≥ 640px) ===== */
@media (min-width: 40rem) {
  .nav {
    width: auto;
  }

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

  .contact__cta {
    width: auto;
  }

  .contact__map iframe {
    height: 20rem;
  }

  .contact__map {
    min-height: 20rem;
  }
}

/* ===== Desktop (≥ 768px) ===== */
@media (min-width: 48rem) {
  .header__inner {
    padding-block: var(--spacing-md);
  }

  .hero {
    padding-block: 5rem var(--spacing-xl);
  }

  .hero__graphic {
    position: absolute;
    right: 5%;
    bottom: 15%;
    margin-top: 0;
  }

  .hero__car-line {
    max-width: 22rem;
  }

  .services__grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .contact__grid {
    grid-template-columns: 1fr 1.2fr;
    align-items: start;
  }

  .contact__links li {
    flex-direction: row;
    align-items: baseline;
    gap: var(--spacing-sm);
  }

  .contact__label {
    min-width: 4.5rem;
  }

  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* ===== Large Desktop (≥ 1024px) ===== */
@media (min-width: 64rem) {
  .hero__car-line {
    max-width: 28rem;
  }
}