/*
 * AXION IT – Global Design System
 * Zentrale CSS-Datei – einzige Quelle der Wahrheit für Typografie, Layout, Spacing
 * Font: System-Stack (Inter-optimiert) | Akzent: Warmes Beige (#C9B99A)
 * 8px-Raster Spacing-System
 */

/* ═══════════════════════════════════════════════════════════════════════════
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ═══════════════════════════════════════════════════════════════════════════ */

:root {
  /* Farben */
  --color-bg: #FFFFFF;
  --color-bg-secondary: #FAFAFA;
  --color-bg-tertiary: #F5F5F5;
  --color-text: #1A1A1A;
  --color-text-secondary: #6B6B6B;
  --color-text-muted: #999999;
  --color-accent: #C9B99A;
  --color-accent-hover: #B8A889;
  --color-accent-light: rgba(201, 185, 154, 0.15);
  --color-border: #E5E5E5;
  --color-border-light: #F0F0F0;

  /* Typografie — einheitlicher System-Stack für alle Seiten */
  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;

  /* Font Sizes — fluid, globale Skala (8px-Raster-basiert) */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem); /*  12–14px */
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.375vw, 1rem);    /*  14–16px */
  --text-base: clamp(1rem,     0.9rem  + 0.5vw,   1.125rem); /*  16–18px */
  --text-lg:   clamp(1.125rem, 1rem    + 0.625vw, 1.25rem);  /*  18–20px */
  --text-xl:   clamp(1.25rem,  1.1rem  + 0.75vw,  1.5rem);   /*  20–24px */
  --text-2xl:  clamp(1.5rem,   1.25rem + 1.25vw,  2rem);     /*  24–32px */
  --text-3xl:  clamp(2rem,     1.5rem  + 2.5vw,   3rem);     /*  32–48px */
  --text-4xl:  clamp(2.5rem,   1.75rem + 3.75vw,  4rem);     /*  40–64px */
  --text-5xl:  clamp(3rem,     2rem    + 5vw,      5rem);     /*  48–80px */

  /* Spacing — 8px-Raster */
  --space-xs:  0.5rem;   /*  8px */
  --space-sm:  1rem;     /* 16px */
  --space-md:  1.5rem;   /* 24px */
  --space-lg:  2rem;     /* 32px */
  --space-xl:  3rem;     /* 48px */
  --space-2xl: 4rem;     /* 64px */
  --space-3xl: 6rem;     /* 96px */
  --space-4xl: 8rem;     /* 128px */

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --nav-height: 80px;
  --tap-target: 48px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.1);

  /* Border Radius */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-full: 9999px;

  /* Focus */
  --focus-ring: 0 0 0 3px rgba(201, 185, 154, 0.4);
}

img, svg, video, canvas {
  max-width: 100%;
  height: auto;
}

button,
.hero-cta,
.about-cta-link,
.nav-link,
.dropdown-toggle,
.page-cta-button,
.service-links a,
.blog-quick-link,
.footer-links a,
.send-button {
  min-height: var(--tap-target);
}

a,
button,
input,
textarea,
select {
  -webkit-tap-highlight-color: rgba(201, 185, 154, 0.2);
}

/* ═══════════════════════════════════════════════════════════════════════════
   2. RESET & BASE
   ═══════════════════════════════════════════════════════════════════════════ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

button, input, textarea, select {
  font: inherit;
  letter-spacing: inherit;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Globale Basis-Fontgröße & Typografie — identisch auf allen Seiten */
body {
  font-family: var(--font-primary);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100vh;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

@supports (content-visibility: auto) {
  main > .section:not(.section--hero) {
    content-visibility: auto;
    contain-intrinsic-size: 1px 900px;
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   3. TYPOGRAPHY — einheitlich auf allen Seiten
   ═══════════════════════════════════════════════════════════════════════════ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

h1 {
  font-size: var(--text-5xl);
  font-weight: 700;
  letter-spacing: -0.03em;
}

h2 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-lg);
}

h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-sm);
}

h4 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-xs);
}

h5, h6 {
  font-size: var(--text-base);
  margin-bottom: var(--space-xs);
}

p {
  margin-bottom: var(--space-md);
  color: var(--color-text-secondary);
}

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

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

strong {
  font-weight: 600;
  color: var(--color-text);
}

li {
  color: var(--color-text-secondary);
}

button,
input,
label {
  font-family: var(--font-primary);
  font-size: var(--text-base);
}

code, .mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-bg-tertiary);
  padding: 0.2em 0.4em;
  border-radius: var(--radius-sm);
}

/* Page-spezifische Typografie-Overrides */
.legal-page h2 {
  scroll-margin-top: calc(var(--nav-height) + 128px);
}

.preise-page .legal-page h2 {
  text-align: left;
}

.preise-page .legal-page section h2,
.preise-page .legal-page section .price,
.preise-page .legal-page section .package-intro,
.preise-page .legal-page section .b2b-packages,
.preise-page .legal-page section ul,
.preise-page .legal-page section .subprices,
.preise-page .legal-page section .optional {
  padding-left: 1.1rem;
}

.preise-page .legal-page section ul,
.preise-page .legal-page section .subprices {
  margin-left: 0;
}

/* ═══════════════════════════════════════════════════════════════════════════
   4. LAYOUT — einheitliche Struktur auf allen Seiten
   ═══════════════════════════════════════════════════════════════════════════ */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding: 48px 0;
  scroll-margin-top: var(--nav-height);
}

.section--hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: var(--nav-height);
  padding-bottom: 48px;
}

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

/* ═══════════════════════════════════════════════════════════════════════════
   5. NAVIGATION
   ═══════════════════════════════════════════════════════════════════════════ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  z-index: 1000;
  transition: box-shadow var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.nav-logo img {
  height: 40px;
  width: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
  margin: 0;
  padding: 0;
  height: 100%;
}

.nav-menu > li {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
}

.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: var(--nav-height);
  line-height: 1;
  white-space: nowrap;
  font-family: var(--font-primary);
  font-size: var(--text-sm);
  font-weight: 400;
  color: var(--color-text);
  padding: 0 var(--space-xs);
  transition: color var(--transition-fast);
}

.nav-container .nav-link,
.nav-container .nav-link:visited,
.nav-container .nav-link:hover,
.nav-container .nav-link:focus,
.nav-container .nav-link:active,
.nav-container .nav-link[aria-current="page"] {
  font-weight: 400;
  color: var(--color-text);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 16px;
  left: var(--space-xs);
  right: var(--space-xs);
  width: auto;
  height: 2px;
  background: var(--color-accent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.nav-link:hover,
.nav-link:focus {
  color: var(--color-text);
}

.nav-link[aria-current="page"]::after,
.nav-link:hover::after,
.nav-link:focus::after {
  opacity: 1;
}

/* Kontakt-Link: gerahmter Button */
a.nav-link[href="kontakt.html"] {
  border: 1px solid #d6c5a3;
  background-color: #d6c5a3;
  border-radius: var(--radius-full);
  padding: var(--space-xs) var(--space-md);
  height: auto;
}

a.nav-link[href="kontakt.html"]::after {
  display: none;
}

.nav-item.dropdown {
  position: relative;
}

.dropdown-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
}

.dropdown-toggle::after {
  content: ' ▾';
  position: static;
  bottom: auto;
  left: auto;
  width: auto;
  height: auto;
  background: transparent;
  opacity: 1;
  font-size: 0.85em;
  font-weight: 400;
  transition: none;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 200px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--space-sm);
  list-style: none;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: all var(--transition-base);
  z-index: 1100;
}

.nav-item.dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (min-width: 769px) {
  .nav-item.dropdown:hover .dropdown-menu,
  .nav-item.dropdown:focus-within .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
}

.dropdown-menu a {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: var(--text-sm);
}

.dropdown-menu a:hover,
.dropdown-menu a:focus {
  background: var(--color-accent-light);
  color: var(--color-text);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  width: 48px;
  height: 48px;
  padding: 12px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

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

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform var(--transition-base), opacity 150ms ease;
  transform-origin: center center;
}

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

.hamburger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

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

/* ═══════════════════════════════════════════════════════════════════════════
   6. HERO SECTION
   ═══════════════════════════════════════════════════════════════════════════ */

.hero {
  text-align: center;
  padding: var(--space-2xl);
}

.hero-logo {
  max-width: 400px;
  width: 80%;
  height: auto;
  margin-bottom: var(--space-xl);
  filter: grayscale(100%) brightness(0.2);
}

.hero h1 {
  margin-bottom: var(--space-md);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.hero-subtitle {
  font-size: var(--text-xl);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-xl);
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-xl);
  background: var(--color-text);
  color: var(--color-bg);
  font-weight: 500;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.hero-cta:hover {
  background: var(--color-accent-hover);
  color: var(--color-bg);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.hero-cta:active {
  transform: translateY(0);
}

/* ═══════════════════════════════════════════════════════════════════════════
   7. ABOUT SECTION
   ═══════════════════════════════════════════════════════════════════════════ */

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.about-content h2 {
  position: relative;
  display: inline-block;
}

.about-content h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--color-accent);
}

.about-content p {
  font-size: var(--text-lg);
  line-height: 1.8;
}

.about-cta-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-text);
  font-weight: 500;
  padding: var(--space-sm) 0;
  border-bottom: 2px solid var(--color-accent);
  transition: all var(--transition-fast);
}

.about-cta-link:hover {
  color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.about-photo {
  position: relative;
}

.about-photo img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.about-photo::before {
  content: '';
  position: absolute;
  top: var(--space-lg);
  left: var(--space-lg);
  right: calc(var(--space-lg) * -1);
  bottom: calc(var(--space-lg) * -1);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-lg);
  z-index: -1;
}

/* ═══════════════════════════════════════════════════════════════════════════
   8. SERVICES SECTION
   ═══════════════════════════════════════════════════════════════════════════ */

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-header h2 {
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--color-accent);
  margin: var(--space-sm) auto 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.service-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  margin: 0;
  padding: 0;
}

.service-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-xl);
  background: var(--color-accent);
  color: var(--color-bg);
  font-weight: 500;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

.service-links a:hover,
.service-links a:focus {
  background: var(--color-accent-hover);
  color: var(--color-bg);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.service-list {
  list-style: disc;
  margin-left: var(--space-lg);
  color: var(--color-text-secondary);
}

.service-list li {
  margin-bottom: var(--space-sm);
}

.service-card {
  padding: var(--space-xl);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.service-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.service-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

.service-icon svg {
  width: 100%;
  height: 100%;
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
}

.service-card h3 {
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.service-card p {
  font-size: var(--text-sm);
  margin-bottom: 0;
}

.about-focus-list {
  margin: 0 0 1.5rem 0;
  padding-left: 1.25rem;
}

.service-highlights {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.service-highlight {
  padding: 2rem;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-md);
}

.service-highlight-title {
  margin-top: 0;
}

.service-highlight-link {
  font-weight: 600;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 2rem;
  margin-bottom: 3rem;
}

.trust-list {
  padding-left: 1.25rem;
}

.testimonials {
  max-width: 800px;
  margin: 0 auto;
}

.testimonials-heading {
  text-align: center;
}

.testimonial-quote {
  border-left: 3px solid var(--color-accent);
  padding-left: 1.5rem;
  margin: 2rem 0;
  font-style: italic;
}

.testimonial-cite {
  font-style: normal;
  font-weight: 600;
}

.contact-info {
  text-align: center;
  margin-top: 3rem;
  color: var(--color-text-secondary);
}

.contact-info-note {
  font-size: 0.9em;
}

/* ═══════════════════════════════════════════════════════════════════════════
   9. PORTFOLIO SECTION
   ═══════════════════════════════════════════════════════════════════════════ */

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.project-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.project-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.project-card__header {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-lg);
  align-items: start;
}

.project-index {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.project-card h3 {
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.project-summary {
  margin: 0;
  color: var(--color-text-secondary);
}

.project-details {
  display: grid;
  gap: var(--space-md);
}

.project-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.project-tags li {
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--color-text);
  padding: var(--space-xs) var(--space-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-bg-tertiary);
}

.project-metrics {
  list-style: none;
  display: grid;
  gap: var(--space-sm);
}

.project-metrics li {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: var(--space-md);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.metric-label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: var(--text-xs);
  color: var(--color-text);
}

.metric-value {
  color: var(--color-text-secondary);
}

/* ═══════════════════════════════════════════════════════════════════════════
   10. CONTACT SECTION
   ═══════════════════════════════════════════════════════════════════════════ */

.contact-content {
  text-align: center;
  max-width: var(--container-narrow);
  margin: 0 auto;
}

/* Chat Window */
.chat-window {
  max-width: 700px;
  margin: var(--space-xl) auto;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  min-height: 400px;
  max-height: 500px;
  overflow-y: auto;
}

.chat-message {
  display: flex;
  margin-bottom: var(--space-md);
  animation: slideIn 0.3s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.message-bot {
  justify-content: flex-start;
}

.message-user {
  justify-content: flex-end;
}

.message-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.avatar-bot {
  background: var(--color-accent-light);
  border: 1px solid var(--color-accent);
  margin-right: var(--space-sm);
}

.avatar-user {
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border);
  margin-left: var(--space-sm);
}

.message-bubble {
  max-width: 70%;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-lg);
  line-height: 1.5;
}

.bubble-bot {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.bubble-user {
  background: var(--color-text);
  color: var(--color-bg);
}

/* Chat Input */
.chat-input-container {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  gap: var(--space-sm);
}

.chat-input-wrapper {
  flex: 1;
}

.chat-input {
  width: 100%;
  padding: var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-family: inherit;
  font-size: var(--text-base);
  color: var(--color-text);
  resize: none;
  transition: border-color var(--transition-fast);
}

.chat-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: var(--focus-ring);
}

.chat-input::placeholder {
  color: var(--color-text-muted);
}

.send-button {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-text);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.send-button:hover {
  background: var(--color-accent-hover);
  transform: scale(1.05);
}

.send-button:focus {
  outline: none;
  box-shadow: var(--focus-ring);
}

.send-button svg {
  width: 20px;
  height: 20px;
  stroke: var(--color-bg);
  fill: none;
}

/* ═══════════════════════════════════════════════════════════════════════════
   11. FAQ SECTION
   ═══════════════════════════════════════════════════════════════════════════ */

.faq {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item:first-child {
  border-top: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) 0;
  background: transparent;
  border: none;
  font-family: inherit;
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-text);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.faq-question:hover {
  color: var(--color-accent-hover);
}

.faq-question:focus {
  outline: none;
}

.faq-question:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.caret {
  width: 12px;
  height: 12px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform var(--transition-base);
  flex-shrink: 0;
  margin-left: var(--space-md);
}

.faq-question[aria-expanded="true"] .caret {
  transform: rotate(-135deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.faq-answer[aria-hidden="false"] {
  max-height: 500px;
}

.faq-answer p {
  padding-bottom: var(--space-lg);
  color: var(--color-text-secondary);
}

.page-cta-section {
  padding-top: var(--space-2xl);
  padding-bottom: calc(var(--space-xl) + env(safe-area-inset-bottom, 0px));
}

.page-cta-box {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--space-xl);
  border: 1px solid var(--color-border);
  border-radius: 0;
  background: var(--color-bg);
  text-align: center;
}

.page-cta-text {
  margin-bottom: var(--space-md);
}

.page-cta-button {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: var(--space-md) var(--space-xl);
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
  background: var(--color-text);
  color: var(--color-bg);
  border: 1px solid var(--color-text);
  border-radius: 0;
  font-weight: 500;
  transition: all var(--transition-base);
}

.page-cta-button:hover,
.page-cta-button:focus {
  background: var(--color-accent-hover);
  color: var(--color-bg);
  border-color: var(--color-accent-hover);
}

.early-cta-section {
  padding-top: var(--space-lg);
  padding-bottom: var(--space-xl);
}

.early-cta-box {
  max-width: 860px;
  margin: 0 auto;
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
}

.early-cta-title {
  margin-bottom: var(--space-xs);
  font-size: var(--text-xl);
}

.early-cta-text {
  margin-bottom: var(--space-md);
}

.early-trust-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-sm);
  list-style: none;
  margin: 0 0 var(--space-md);
  padding: 0;
}

.early-trust-list li {
  padding: var(--space-sm);
  border: 1px solid var(--color-border-light);
  background: var(--color-bg);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: 1.5;
}

.content-relief-grid {
  margin-top: var(--space-lg);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-sm);
}

.content-relief-item {
  padding: var(--space-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
}

.content-relief-item h3 {
  margin-bottom: 0.4rem;
  font-size: var(--text-base);
}

.content-relief-item p {
  margin-bottom: 0;
  font-size: var(--text-sm);
}

/* ═══════════════════════════════════════════════════════════════════════════
   12. LEGAL PAGES
   ═══════════════════════════════════════════════════════════════════════════ */

.legal-page {
  padding-top: calc(var(--nav-height) + var(--space-xl));
  padding-bottom: var(--space-lg);
}

.legal-page + .section {
  padding-top: var(--space-xl);
}

.legal-page h1 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-md);
  text-align: center;
}

.page-intro {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

.blog-quick-links {
  margin-top: var(--space-lg);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  justify-content: flex-start;
}

.blog-quick-link {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-bg);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  transition: all var(--transition-fast);
}

.blog-quick-link:hover {
  background: var(--color-accent-light);
  color: var(--color-text);
  border-color: var(--color-accent);
}

.blog-quick-link:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

h2[id] {
  scroll-margin-top: calc(var(--nav-height) + 32px);
}

.section-header[id] {
  scroll-margin-top: calc(var(--nav-height) + 12px);
}

.legal-content {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.legal-content h2 {
  font-size: var(--text-2xl);
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-accent);
}

.legal-content h3 {
  font-size: var(--text-lg);
  margin-top: var(--space-xl);
  color: var(--color-text);
}

.legal-content p,
.legal-content li {
  color: var(--color-text-secondary);
  line-height: 1.8;
}

.legal-content ul {
  margin-left: var(--space-lg);
  margin-bottom: var(--space-md);
}

.legal-content li {
  margin-bottom: var(--space-sm);
}

.legal-content a {
  color: var(--color-accent-hover);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.legal-page .lead {
  color: var(--color-text-secondary);
  font-size: var(--text-lg);
  margin-bottom: var(--space-sm);
}

.legal-page .vat-note {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-xl);
}

.legal-page .price {
  font-weight: 700;
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}

.legal-page .price small {
  font-weight: 400;
  color: var(--color-text-secondary);
}

.legal-page .subprices {
  margin-left: var(--space-lg);
  margin-bottom: var(--space-md);
}

.legal-page .subprices li {
  margin-bottom: var(--space-xs);
}

.legal-page .optional {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  margin-bottom: var(--space-md);
}

/* B2B Packages */
.b2b-packages {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.package-intro {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  margin: var(--space-sm) 0 var(--space-md);
}

.b2b-package {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.b2b-package-name {
  font-weight: 600;
  color: var(--color-text);
}

.b2b-package-price {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
}

.b2b-package-note {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

@media (max-width: 900px) {
  .b2b-packages {
    grid-template-columns: 1fr;
  }
}

.legal-page .container > section {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border-light);
}

.legal-page .container > section:first-of-type {
  margin-top: var(--space-lg);
}

/* Legal Contact Card */
.legal-contact-card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
}

.legal-contact-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.legal-contact-row:last-child {
  border-bottom: none;
}

.legal-contact-label {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.legal-contact-value {
  color: var(--color-text-secondary);
}

.legal-contact-value address {
  font-style: normal;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding: var(--space-md) 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: var(--container-narrow);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.breadcrumb a {
  color: var(--color-text-secondary);
  padding: 0.5rem 0;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.breadcrumb a:hover,
.breadcrumb a:active {
  color: var(--color-text);
}

.breadcrumb-separator {
  color: var(--color-text-muted);
}

/* ═══════════════════════════════════════════════════════════════════════════
   13. FOOTER
   ═══════════════════════════════════════════════════════════════════════════ */

footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0;
  padding-bottom: calc(var(--space-2xl) + env(safe-area-inset-bottom, 0px));
}

footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

footer p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin: 0;
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

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

.footer-partner {
  display: flex;
  align-items: center;
}

.footer-partner-link {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  padding: 0.45rem 0.7rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.75);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), color var(--transition-fast);
}

.footer-partner-link img {
  width: 86px;
  height: auto;
  display: block;
  opacity: 0.92;
}

.footer-partner-link:hover,
.footer-partner-link:focus-visible {
  color: var(--color-text);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

/* ═══════════════════════════════════════════════════════════════════════════
   14. UTILITIES
   ═══════════════════════════════════════════════════════════════════════════ */

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

.text-center {
  text-align: center;
}

.text-accent {
  color: var(--color-accent);
}

/* Prozess-Liste (geordnete Schritte, z. B. it-beratung-consulting.html) */
.process-list {
  padding-left: var(--space-md);
  max-width: 760px;
}

.process-list-item {
  margin-bottom: var(--space-md);
}

.process-step-heading {
  margin-bottom: var(--space-xs);
}

/* Intro-Absatz mit größerem Abstand nach unten */
.intro-paragraph--spaced {
  margin-bottom: var(--space-xl);
  color: var(--color-text-secondary);
}

/* Absatz mit margin-top */
.paragraph--mt-md {
  margin-top: var(--space-md);
}

/* Focus Visible */
*:focus {
  outline: none;
}

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

/* ═══════════════════════════════════════════════════════════════════════════
   15. RESPONSIVE
   ═══════════════════════════════════════════════════════════════════════════ */

/* Tablet */
@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    gap: var(--space-2xl);
  }
}

/* Mobile Landscape / Small Tablet */
@media (max-width: 768px) {
  :root {
    --nav-height: 70px;
  }

  .navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 2000;
    height: calc(var(--nav-height) + env(safe-area-inset-top, 0px));
    padding-top: env(safe-area-inset-top, 0px);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
  }

  .nav-container {
    height: var(--nav-height);
  }

  .hamburger {
    display: flex;
    position: relative;
    z-index: 1201;
  }

  .nav-menu {
    position: fixed;
    top: calc(var(--nav-height) + env(safe-area-inset-top, 0px));
    right: 0;
    left: auto;
    width: min(320px, 85vw);
    height: calc(100dvh - var(--nav-height) - env(safe-area-inset-top, 0px));
    max-height: calc(100dvh - var(--nav-height) - env(safe-area-inset-top, 0px));
    background: var(--color-bg);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-sm) var(--space-md);
    border-bottom: 1px solid var(--color-border);
    transform: translateX(100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    overflow-y: auto;
    overscroll-behavior: contain;
    box-shadow: var(--shadow-lg);
    z-index: 1200;
  }

  .nav-menu.active {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-link {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    height: auto;
    min-height: 44px;
    line-height: 1.2;
    padding: 0.6rem var(--space-xs);
    font-size: var(--text-base);
    text-align: left;
  }

  .nav-link::after {
    content: none;
  }

  .nav-link.active,
  .nav-link[aria-current="page"] {
    border-left: 2px solid var(--color-accent);
    padding-left: calc(var(--space-xs) - 2px);
  }

  .nav-item.dropdown {
    width: 100%;
  }

  .dropdown-toggle {
    width: 100%;
    text-align: left;
    padding: 0.6rem var(--space-xs);
  }

  .dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    background: transparent;
    padding: 0 0 0.4rem;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
  }

  .nav-item.dropdown.open .dropdown-menu {
    display: block;
    padding-left: var(--space-sm);
  }

  .dropdown-menu a {
    padding: 0.45rem var(--space-xs);
    font-size: var(--text-sm);
  }

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

  .about-grid {
    grid-template-columns: 1fr;
    text-align: left;
  }

  .about-content {
    text-align: left;
  }

  .about-content p,
  .about-content ul,
  .about-content li,
  .about-content strong {
    text-align: left;
  }

  .about-content ul {
    margin-left: 0;
    padding-left: 1.25rem;
    list-style-position: outside;
  }

  .about-content h2::after {
    left: 0;
    transform: none;
  }

  .about-cta-link {
    justify-content: flex-start;
  }

  .about-photo {
    order: -1;
    max-width: 400px;
    margin: 0 auto;
  }

  .about-photo::before {
    display: none;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
  }

  .project-card {
    width: 100%;
    max-width: 100%;
    padding: var(--space-md);
  }

  .project-card__header {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .project-index {
    font-size: var(--text-2xl);
  }

  footer .container {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-sm) var(--space-md);
  }

  .footer-links a {
    min-height: var(--tap-target);
    display: inline-flex;
    align-items: center;
  }

  .footer-partner-link {
    justify-content: center;
    text-align: center;
    max-width: 100%;
  }

  .footer-partner-link img {
    width: 74px;
  }
}

/* Small Mobile Tweaks */
@media (max-width: 414px) {
  .container {
    padding: 0 var(--space-md);
  }
}

@media (max-width: 360px) {
  .nav-logo {
    font-size: var(--text-base);
  }
  .hero-cta {
    font-size: var(--text-sm);
  }
  .nav-menu {
    width: 100vw;
  }
}

/* Mobile Portrait */
@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  .section {
    padding: var(--space-2xl) 0;
  }

  .hero-logo {
    max-width: 280px;
  }

  .hero h1 {
    font-size: clamp(1.8rem, 6.2vw, 2.6rem);
    line-height: 1.2;
    letter-spacing: -0.015em;
    word-break: normal;
    overflow-wrap: normal;
    hyphens: manual;
    text-wrap: balance;
    max-width: 22ch;
  }

  .hero-cta {
    width: 100%;
    justify-content: center;
  }

  .page-cta-box {
    padding: var(--space-lg);
  }

  .page-cta-button {
    width: 100%;
  }

  .early-trust-list,
  .content-relief-grid {
    grid-template-columns: 1fr;
  }

  .early-cta-box {
    padding: var(--space-md);
  }

  .service-links a {
    width: 100%;
    justify-content: center;
  }

  .service-card {
    padding: var(--space-md);
    width: 100%;
    max-width: 100%;
  }

  .project-metrics li {
    grid-template-columns: 1fr;
  }

  .service-card h3 {
    font-size: var(--text-lg);
  }

  .service-card p {
    font-size: var(--text-sm);
    line-height: 1.6;
  }

  .project-card {
    padding: var(--space-sm);
  }

  .project-card__header {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .project-card h3 {
    font-size: var(--text-lg);
  }

  .project-summary {
    font-size: var(--text-sm);
  }

  .chat-window {
    padding: var(--space-md);
    min-height: 300px;
  }

  .chat-input-container {
    flex-direction: column;
  }

  input,
  textarea,
  select,
  button {
    font-size: 16px;
  }

  .send-button {
    width: 100%;
    border-radius: var(--radius-lg);
  }

  .message-bubble {
    max-width: 85%;
  }

  .legal-contact-row {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
  }
}

@media (hover: none) {
  .hero-cta:hover,
  .service-links a:hover,
  .service-card:hover,
  .project-card:hover,
  .page-cta-button:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
  }
}

/* ═══════════════════════════════════════════════════════════════════════════
   16. ANIMATIONS
   ═══════════════════════════════════════════════════════════════════════════ */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeInUp 0.6s ease forwards;
}

@supports (animation-timeline: scroll()) {
  .section {
    animation: fadeInUp linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 30%;
  }
}

/* Typing Indicator */
.typing-indicator {
  display: none;
  gap: 4px;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.typing-indicator.active {
  display: flex;
}

.typing-dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: typingBounce 1.4s infinite;
}

.typing-dot:nth-child(2) {
  animation-delay: 0.2s;
}