/*
  Basis-Styles
  - Mobile first
  - Helle, professionelle Farbwelt
  - Dezente Effekte und viel Weißraum
*/

:root {
  --color-bg: #f7f9fc;
  --color-surface: #ffffff;
  --color-text: #1f2937;
  --color-muted: #4b5563;
  --color-line: #dbe3ee;
  --color-accent: #0b5cab;
  --color-accent-strong: #084c8e;
  --shadow-soft: 0 12px 28px rgba(17, 24, 39, 0.08);
  --radius: 14px;
  --container: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background:
    radial-gradient(circle at top right, rgba(11, 92, 171, 0.08), transparent 35%),
    radial-gradient(circle at bottom left, rgba(8, 76, 142, 0.05), transparent 40%),
    var(--color-bg);
  line-height: 1.6;
}

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

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

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.25;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  margin-bottom: 1rem;
}

.container {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
}

.section {
  padding: 4.5rem 0;
}

.section-soft {
  background-color: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(2px);
}

.content-narrow {
  max-width: 760px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  padding: 0.6rem 1rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: 0 0 8px 8px;
}

.skip-link:focus {
  left: 1rem;
  z-index: 1000;
}

/* Header + Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 249, 252, 0.92);
  border-bottom: 1px solid var(--color-line);
  backdrop-filter: blur(10px);
}

.header-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  color: var(--color-text);
}

.brand-mark {
  display: inline-grid;
  place-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.95rem;
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  border: 1px solid var(--color-line);
  border-radius: 10px;
  background: var(--color-surface);
  padding: 0.5rem;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--color-text);
}

.main-nav {
  display: none;
  position: absolute;
  top: 72px;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
}

.main-nav.open {
  display: block;
}

.main-nav ul {
  margin: 0;
  padding: 0.75rem 1rem 1rem;
  list-style: none;
}

.main-nav li + li {
  margin-top: 0.35rem;
}

.main-nav a {
  display: inline-block;
  padding: 0.4rem 0.2rem;
  color: var(--color-text);
}

/* Hero */
.hero {
  padding-top: 5rem;
}

.hero-layout {
  max-width: 780px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 0.75rem;
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  background: rgba(11, 92, 171, 0.12);
  color: var(--color-accent-strong);
  font-weight: 600;
  font-size: 0.9rem;
}

.hero-text {
  font-size: clamp(1rem, 2.1vw, 1.25rem);
  max-width: 64ch;
}

.button {
  display: inline-block;
  margin-top: 1.4rem;
  padding: 0.82rem 1.2rem;
  border-radius: 10px;
  background: var(--color-accent);
  color: #fff;
  font-weight: 600;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.button:hover,
.button:focus-visible {
  background: var(--color-accent-strong);
  color: #fff;
  transform: translateY(-1px);
}

/* Kartenlayout Leistungen */
.service-grid {
  display: grid;
  gap: 1rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 1.2rem;
  box-shadow: 0 1px 0 rgba(17, 24, 39, 0.03);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.card h3 {
  margin-bottom: 0.55rem;
}

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

/* Technologien */
.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.tech-list li {
  padding: 0.45rem 0.78rem;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  background: var(--color-surface);
  color: var(--color-text);
  font-weight: 500;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-line);
  background: #f1f5fb;
  padding: 1.5rem 0;
}

.footer-layout {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer-layout p {
  margin: 0;
  color: var(--color-muted);
}

.footer-layout ul {
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Hilfsklassen für Unterseiten (Impressum/Datenschutz) */
.legal-main {
  padding: 3rem 0 4rem;
}

.legal-card {
  max-width: 860px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
}

.legal-card h1 {
  margin-bottom: 1rem;
}

.legal-card h2 {
  margin-top: 2rem;
  margin-bottom: 0.6rem;
  font-size: 1.2rem;
}

.legal-card p {
  margin: 0.4rem 0;
}

/* Größere Viewports */
@media (min-width: 760px) {
  .nav-toggle {
    display: none;
  }

  .main-nav {
    display: block;
    position: static;
    border: 0;
    background: transparent;
  }

  .main-nav ul {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0;
  }

  .main-nav li + li {
    margin-top: 0;
  }

  .main-nav a {
    padding: 0.35rem 0.5rem;
    border-radius: 6px;
  }

  .main-nav a:hover,
  .main-nav a:focus-visible {
    background: rgba(11, 92, 171, 0.08);
    color: var(--color-accent-strong);
  }

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

  .footer-layout {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .legal-card {
    padding: 2rem;
  }
}