:root {
  --color-background: #05070d;
  --color-surface: rgba(9, 15, 27, 0.82);
  --color-surface-strong: rgba(10, 18, 32, 0.95);
  --color-surface-alt: rgba(13, 23, 42, 0.88);
  --color-text: #f0f3f9;
  --color-muted: #a9b5cf;
  --color-accent: #3bc0ff;
  --color-accent-strong: #0fa7ef;
  --color-border: rgba(59, 192, 255, 0.2);
  --shadow-soft: 0 24px 48px rgba(0, 0, 0, 0.35);
  --shadow-sharp: 0 16px 40px rgba(12, 24, 44, 0.45);
  --radius-large: 28px;
  --radius-medium: 18px;
  --radius-small: 10px;
  --transition-base: all 0.25s ease;
  --font-base: 'Montserrat', 'Segoe UI', 'Tahoma', sans-serif;
  --topbar-height: 64px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, #0a1426, #05070d 60%);
  color: var(--color-text);
  font-family: var(--font-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  padding-top: var(--topbar-height);
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: var(--transition-base);
}

a:hover,
a:focus-visible {
  color: var(--color-accent-strong);
  text-decoration: underline;
}

.visually-hidden {
  border: 0;
  clip: rect(0 0 0 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  width: 1px;
}

.skip-link {
  position: absolute;
  top: -200px;
  left: 1rem;
  background: var(--color-accent);
  color: #001428;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-small);
  z-index: 1000;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 1rem;
}

.container {
  width: min(1080px, 92vw);
  margin: 0 auto;
}

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  backdrop-filter: blur(12px);
  background: linear-gradient(90deg, rgba(5, 9, 18, 0.92), rgba(10, 18, 32, 0.92));
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  z-index: 900;
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
  gap: 1.5rem;
}

.brand {
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.95rem;
  color: var(--color-text);
}

.brand:hover,
.brand:focus-visible {
  color: var(--color-accent);
  text-decoration: none;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-small);
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: transparent;
  color: inherit;
  cursor: pointer;
  transition: var(--transition-base);
}

.nav-toggle:hover,
.nav-toggle:focus-visible {
  border-color: var(--color-accent);
}

.nav-toggle__box {
  display: grid;
  row-gap: 6px;
}

.nav-toggle__line {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.primary-nav {
  position: absolute;
  inset: 100% 0 auto 0;
  background: var(--color-surface);
  transform-origin: top;
  transform: scaleY(0);
  transition: transform 0.2s ease;
}

.primary-nav.is-open {
  transform: scaleY(1);
}

.primary-nav ul {
  list-style: none;
  margin: 0;
  padding: 0.75rem 1rem 1rem;
  display: grid;
  gap: 0.25rem;
}

.nav-link {
  display: block;
  padding: 0.75rem;
  border-radius: var(--radius-small);
  color: var(--color-text);
}

.nav-link:focus-visible,
.nav-link:hover {
  background: rgba(59, 192, 255, 0.12);
  text-decoration: none;
}

.nav-link.active {
  color: var(--color-accent);
  background: rgba(59, 192, 255, 0.1);
}

.hero {
  position: relative;
  min-height: 72vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  text-align: center;
  padding: 0;
  background: radial-gradient(circle at center, rgba(8, 15, 32, 0.85), rgba(5, 9, 18, 0.95)),
    url('../img/intro-bg4.jpg') center/cover no-repeat fixed;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 12, 22, 0.95), rgba(3, 6, 12, 0.88));
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 1.5rem;
  justify-items: center;
  text-align: center;
  padding: clamp(5rem, 11vw, 7rem) 0 clamp(4rem, 9vw, 6rem);
}

.hero-tagline {
  font-size: 0.95rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.hero h1 {
  font-weight: 600;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  line-height: 1.2;
  max-width: 800px;
  margin: 0;
}

.hero-subline {
  max-width: 660px;
  margin: 0;
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  color: var(--color-muted);
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 2.4rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-strong));
  color: #021022;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: none;
  transition: background 0.2s ease, color 0.2s ease;
}

.cta:hover,
.cta:focus-visible {
  text-decoration: none;
  background: linear-gradient(135deg, var(--color-accent-strong), var(--color-accent));
  color: #010a16;
  outline: none;
}

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

main {
  display: block;
}

.section {
  padding: clamp(4rem, 10vw, 6rem) 0;
}

.section-header {
  display: grid;
  gap: 1.25rem;
  margin-bottom: clamp(2.5rem, 6vw, 3.5rem);
}

.section-header h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 600;
}

.section-lead {
  margin: 0;
  color: var(--color-muted);
  max-width: 740px;
}

.card-grid {
  display: grid;
  gap: 1.5rem;
}

.feature-card {
  padding: 2.2rem;
  background: var(--color-surface);
  border-radius: var(--radius-large);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sharp);
  display: grid;
  gap: 0.75rem;
}

.feature-card h3 {
  margin: 0;
  font-size: 1.4rem;
  font-weight: 600;
}

.feature-card p {
  margin: 0;
  color: var(--color-muted);
}

.feature-card:hover,
.feature-card:focus-within {
  border-color: rgba(59, 192, 255, 0.35);
  transform: translateY(-4px);
}

.section-arbeitsweise {
  background: linear-gradient(180deg, rgba(10, 16, 30, 0.95), rgba(4, 7, 14, 0.98));
}

.workflow-grid {
  display: grid;
  gap: 1.4rem;
}

.workflow-card {
  padding: 2rem;
  border-radius: var(--radius-large);
  background: var(--color-surface-alt);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-soft);
  display: grid;
  gap: 0.85rem;
}

.workflow-card h3 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 600;
}

.workflow-card p {
  margin: 0;
  color: var(--color-muted);
}

.workflow-card .tagline {
  font-weight: 500;
  letter-spacing: 0.04em;
}

.section-kontakt {
  text-align: center;
  background: none;
  border-radius: 0;
  margin: 0;
  width: 100%;
  box-shadow: none;
  padding-bottom: clamp(3rem, 8vw, 4rem);
}

.section-kontakt h2 {
  margin: 0;
  font-size: clamp(1.9rem, 3vw, 2.3rem);
}

.section-kontakt p {
  margin: 0;
  color: var(--color-muted);
}

.contact-container {
  display: grid;
  gap: 1.25rem;
  justify-items: center;
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.contact-meta {
  font-size: 0.95rem;
}

.contact-meta a {
  color: var(--color-text);
}

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

.section-legal {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  background: rgba(8, 15, 30, 0.88);
}

.section-legal h2 {
  margin-top: 0;
}

.section-legal p {
  margin: 0;
  color: var(--color-muted);
}

.legal-stack {
  display: grid;
  gap: 0.75rem;
  max-width: 720px;
}

.legal-stack h3,
.legal-stack h4 {
  margin: 1.5rem 0 0.5rem;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-text);
}

.legal-stack h4 {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.legal-stack p a {
  color: var(--color-accent);
}

.legal-stack p a:hover,
.legal-stack p a:focus-visible {
  color: var(--color-accent-strong);
}

.legal-stack img {
  border-radius: var(--radius-small);
}

.legal-source {
  margin-top: 2rem;
  font-size: 0.85rem;
  color: var(--color-muted);
}

.site-footer {
  padding: 2rem 0 3rem;
  background: rgba(4, 8, 16, 0.95);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  color: var(--color-muted);
}

.footer-nav {
  display: flex;
  gap: 1rem;
}

.footer-link {
  color: var(--color-muted);
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  cursor: pointer;
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--color-accent);
  text-decoration: none;
}

#consent-root {
  position: fixed;
  inset: auto 0 1.5rem 0;
  display: flex;
  justify-content: center;
  padding: 0 1rem;
  pointer-events: none;
  z-index: 950;
}

.consent-banner {
  width: min(640px, 100%);
  background: var(--color-surface-strong);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-soft);
  padding: 1.75rem;
  display: none;
  pointer-events: auto;
  gap: 1.25rem;
}

.consent-banner.visible {
  display: grid;
}

.consent-banner h2 {
  margin: 0 0 0.75rem;
  font-size: 1.2rem;
}

.consent-banner p {
  margin: 0 0 0.5rem;
  color: var(--color-muted);
}

.consent-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.consent-button {
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text);
  padding: 0.65rem 1.5rem;
  font: inherit;
  cursor: pointer;
  transition: var(--transition-base);
}

.consent-button.primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-strong));
  color: #021022;
  border: none;
}

.consent-button:hover,
.consent-button:focus-visible {
  color: #010a16;
  background: linear-gradient(135deg, var(--color-accent-strong), var(--color-accent));
  border-color: transparent;
  text-decoration: none;
}

.consent-button:focus-visible {
  outline: 2px solid var(--color-text);
  outline-offset: 3px;
}

@media (min-width: 720px) {
  .nav-toggle {
    display: none;
  }

  .primary-nav {
    position: static;
    transform: none !important;
    background: transparent;
  }

  .primary-nav ul {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0;
  }

  .nav-link {
    padding: 0.6rem 1rem;
  }

  .card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .workflow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .section-kontakt {
    padding-bottom: clamp(3.5rem, 6vw, 4.5rem);
  }
}

@media (min-width: 1024px) {
  .card-grid {
    gap: 1.75rem;
  }

  .workflow-grid {
    gap: 1.75rem;
  }
}
}

.btn-outline-light {
  border-radius: var(--radius-small);
  padding: 0.85rem 1.75rem;
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: var(--color-text);
  transition: var(--transition-base);
}

.btn-outline-light:hover,
.btn-outline-light:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.6);
}

.site-footer {
  background: rgba(7, 11, 20, 0.96);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 1.75rem 0;
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.95rem;
}

.footer-nav {
  display: flex;
  gap: 1.25rem;
}

.footer-link {
  background: none;
  border: none;
  color: var(--color-muted);
  font: inherit;
  padding: 0;
  cursor: pointer;
  transition: color 0.2s ease;
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--color-text);
  text-decoration: underline;
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 0 1rem;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.brand-logo {
  width: 180px;
  height: auto;
}

.legal {
  padding: 3rem 0 5rem;
  max-width: 780px;
}

.legal h1 {
  font-size: clamp(2.2rem, 4vw, 2.8rem);
  font-weight: 600;
  margin-bottom: 2.5rem;
}

.legal section {
  margin-bottom: 2.5rem;
}

.legal section h2 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

.legal p {
  color: var(--color-muted);
}

.legal a {
  color: var(--color-text);
}

.legal-source {
  font-size: 0.85rem;
}

/* Consent Banner */
.consent-banner {
  position: fixed;
  left: 50%;
  bottom: 1.5rem;
  transform: translateX(-50%);
  width: min(520px, calc(100% - 1.5rem));
  background: rgba(16, 26, 41, 0.98);
  border: 1px solid rgba(55, 176, 255, 0.25);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-soft);
  padding: 1.75rem;
  display: none;
  z-index: 1000;
}

.consent-banner.visible {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.consent-banner h2 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0;
}

.consent-banner p {
  color: var(--color-muted);
  margin: 0;
}

.consent-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.consent-button {
  flex: 1 1 140px;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-small);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(32, 54, 86, 0.75);
  color: var(--color-text);
  font-weight: 500;
  transition: var(--transition-base);
  cursor: pointer;
}

.consent-button:hover,
.consent-button:focus-visible {
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(55, 176, 255, 0.18);
}

.consent-button.primary {
  background: var(--color-accent);
  color: #041021;
  border-color: var(--color-accent);
}

.consent-button.primary:hover,
.consent-button.primary:focus-visible {
  background: #5ec0ff;
  border-color: #5ec0ff;
}

@media (max-width: 768px) {
  .hero {
    background-attachment: scroll;
  }

  .hero-content {
    padding: 4rem 1.25rem;
  }

  .service-card {
    padding: 2.25rem 1.75rem;
  }

  .section-contact {
    margin: 3rem 0 0;
    border-radius: var(--radius-medium);
  }

  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .consent-banner {
    bottom: 1rem;
    width: calc(100% - 1.5rem);
    padding: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}