/* Enterprise Knowledge Intelligence — Styles */

/* ============================================================
   1. RESET
   ============================================================ */

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

* {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  overflow-x: hidden;
}

body {
  overflow-x: hidden;
  font-family: 'DM Sans', system-ui, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  cursor: pointer;
  background: none;
  border: none;
  color: inherit;
}

ul, ol {
  list-style: none;
}

/* ============================================================
   2. @FONT-FACE
   ============================================================ */

@font-face {
  font-family: 'Outfit';
  src: url('../fonts/outfit-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Outfit';
  src: url('../fonts/outfit-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Outfit';
  src: url('../fonts/outfit-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Outfit';
  src: url('../fonts/outfit-700.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'DM Sans';
  src: url('../fonts/dm-sans-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'DM Sans';
  src: url('../fonts/dm-sans-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'DM Sans';
  src: url('../fonts/dm-sans-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* ============================================================
   3. DARK THEME (DEFAULT)
   ============================================================ */

:root,
[data-theme="dark"] {
  --bg-primary: #090c17;
  --bg-alt: #0f1523;
  --bg-elevated: #171c2f;
  --text-heading: #e8e0d8;
  --text-body: #9aa5b8;
  --text-muted: #5a6577;
  --accent: #d4935a;
  --accent-hover: #e0a46b;
  --border: rgba(200, 160, 100, 0.12);
  --border-strong: rgba(200, 160, 100, 0.2);
  --overlay: rgba(10, 14, 26, 0.8);
  --focus-ring: #d4935a;
}

/* ============================================================
   4. HIGH-CONTRAST THEME
   ============================================================ */

[data-theme="high-contrast"] {
  --bg-primary: #fff;
  --bg-alt: #f8f8f8;
  --bg-elevated: #f0f0f0;
  --text-heading: #000;
  --text-body: #222;
  --text-muted: #555;
  --accent: #000;
  --accent-hover: #333;
  --border: rgba(0, 0, 0, 0.2);
  --border-strong: rgba(0, 0, 0, 0.35);
  --overlay: rgba(255, 255, 255, 0.95);
  --focus-ring: #000;
}

/* Suppress background animation in high-contrast mode */
[data-theme="high-contrast"] .bg-neural {
  display: none;
}

/* Body background override for light high-contrast */
[data-theme="high-contrast"] body {
  background-color: var(--bg-primary);
}

/* ============================================================
   5. TYPOGRAPHY
   ============================================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', system-ui, sans-serif;
  color: var(--text-heading);
  line-height: 1.2;
}

h1 {
  font-size: 3rem;
  font-weight: 700;
}

h2 {
  font-size: 2.25rem;
  font-weight: 700;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
}

.section-label {
  font-family: 'Outfit', system-ui, sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
}

/* ============================================================
   6. LAYOUT
   ============================================================ */

.container {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

main {
  position: relative;
}

section {
  position: relative;
  z-index: 1;
  padding: 5rem 0;
}

/* Section backgrounds — explicit per-section to control pairing.
   Problem + Lösung share the same bg (no visual break). */
#problem,
#loesung,
#vorgehen,
#ueber-uns {
  background-color: rgba(10, 14, 26, 0.5);
}

#einsatzbereiche,
#faq {
  background-color: rgba(17, 24, 39, 0.5);
}

/* ============================================================
   7. UTILITIES
   ============================================================ */

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

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  padding: 0.5rem 1rem;
  background-color: var(--accent);
  color: var(--bg-primary);
  font-weight: 600;
  border-radius: 0 0 0.5rem 0.5rem;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 0;
}

/* ============================================================
   8. FOCUS STYLES
   ============================================================ */

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

[data-theme="high-contrast"] :focus-visible {
  outline-width: 3px;
}

/* ============================================================
   9. BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s, opacity 0.2s, background-position 0.4s;
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, #b8743a, var(--accent) 40%, var(--accent-hover) 60%, #b8743a);
  background-size: 300% 100%;
  background-position: 100% 0;
  color: var(--bg-primary);
  border: 1px solid transparent;
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  animation: gradient-wave 2s ease infinite;
}

@keyframes gradient-wave {
  0%   { background-position: 100% 0; }
  50%  { background-position: 0 0; }
  100% { background-position: 100% 0; }
}

.btn-outline {
  background-color: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-outline:hover {
  background-color: var(--accent);
  color: var(--bg-primary);
}

/* ============================================================
   10. REDUCED MOTION
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* ============================================================
   11. NAVIGATION
   ============================================================ */

/* Outer wrapper: fixed, full-width, 1rem padding from top */
#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem;
  transition: padding 0.25s;
}

#nav.scrolled {
  padding: 0.5rem 1rem;
}

/* Centers and constrains the pill */
.nav-outer {
  max-width: 1152px;
  margin-inline: auto;
}

/* Glass pill */
.nav-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem;
  padding: 0 1.25rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: transparent;
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: box-shadow 0.25s;
}

#nav.scrolled .nav-pill {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: calc(0.625rem + 10px);
  font-family: 'Outfit', system-ui, sans-serif;
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.015em;
  color: var(--text-heading);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo span,
.nav-logo svg {
  flex-shrink: 0;
  line-height: 1;
}

.nav-logo svg {
  transform: translateY(0);
}

.nav-logo .logo-text {
  transform: translateY(0);
}

/* Desktop nav links (center) */
.nav-links {
  display: none; /* hidden on mobile, overridden below */
  align-items: center;
  gap: 0.5rem;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--text-body);
  padding: 0.5rem 0.75rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border-radius: 9999px;
  transition: color 0.2s, background-color 0.2s;
}

.nav-links a:hover {
  color: var(--accent);
}

.nav-links a.active {
  color: var(--accent);
  background-color: var(--bg-elevated);
}

/* Desktop controls (right) */
.nav-controls {
  display: none; /* hidden on mobile, overridden below */
  align-items: center;
  gap: 0.75rem;
}

/* Theme pill */
.theme-pill {
  display: flex;
  align-items: center;
  background-color: var(--bg-elevated);
  border-radius: 9999px;
  padding: 3px;
  gap: 2px;
}

.theme-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 9999px;
}

.theme-btn svg {
  transform: rotate(45deg);
}

.theme-btn .icon-pause,
.theme-btn .icon-play {
  transform: none;
}

.theme-btn svg {
  color: var(--text-heading);
  opacity: 0.45;
  transition: opacity 0.2s, background-color 0.2s, box-shadow 0.2s;
}

.theme-btn:hover {
  opacity: 0.75;
}

.theme-btn.theme-btn--active,
.theme-btn.active {
  opacity: 1;
  background-color: var(--bg-primary);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}

/* Language toggle */
.lang-toggle {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  background: none;
  border: none;
  transition: color 0.2s;
}

.lang-toggle:hover {
  color: var(--text-body);
}

/* CTA button */
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  background-color: var(--accent);
  color: var(--bg-primary);
  border: none;
  cursor: pointer;
  transition: background-color 0.2s;
}

.nav-cta:hover {
  background-color: var(--accent-hover);
}

/* Hamburger (mobile only — always hidden on desktop) */
.nav-hamburger {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.nav-hamburger:hover {
  color: var(--accent);
}

/* ============================================================
   12. MOBILE NAV MENU
   ============================================================ */

/* Mobile menu panel below the pill */
.nav-mobile-menu {
  margin-top: 0.5rem;
  border-radius: 1rem;
  border: 1px solid var(--border);
  background: transparent;
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  padding: 1rem 1.25rem;
  max-height: 80vh;
  overflow-y: auto;
}

.nav-mobile-menu[hidden] {
  display: none;
}

.nav-mobile-close {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  margin-left: auto;
  color: var(--text-muted);
  transition: color 0.2s;
}

.nav-mobile-close:hover {
  color: var(--accent);
}

.nav-mobile-links {
  margin-top: 0.5rem;
}

.nav-mobile-links li a {
  display: block;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 1rem;
  color: var(--text-body);
  transition: color 0.2s;
}

.nav-mobile-links li:last-child a {
  border-bottom: none;
}

.nav-mobile-links a:hover,
.nav-mobile-links a.active {
  color: var(--accent);
}

.nav-mobile-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-top: 1px solid var(--border);
  margin-top: 0.25rem;
}

.nav-mobile-cta {
  display: flex;
  width: 100%;
  margin-top: 0.75rem;
  font-size: 0.875rem;
}

/* ============================================================
   12b. DESKTOP NAV (768px+)
   ============================================================ */

@media (min-width: 1025px) {
  .nav-links {
    display: flex;
  }

  .nav-controls {
    display: flex;
  }

  .nav-hamburger {
    display: none;
  }

  .nav-mobile-menu {
    display: none !important;
  }
}

/* High-contrast overrides for nav */
[data-theme="high-contrast"] .nav-pill,
[data-theme="high-contrast"] .nav-mobile-menu {
  background-color: rgba(255, 255, 255, 0.9);
  border-color: var(--border);
}

[data-theme="high-contrast"] #nav {
  background-color: transparent;
  border-bottom: none;
}

/* ============================================================
   13. HERO
   ============================================================ */

.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding-top: 6rem;
}

.hero > .container {
  width: 100%;
}

/* Background neural network — full-width, spans hero + sections below.
   No CSS rotation — the JS vertex orbits provide all movement.
   The SVG viewBox is set so the shape fills the width. */
.bg-neural {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  opacity: 0.55;
  pointer-events: none;
  z-index: 0;
  overflow: visible;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin-top: 4vh;
}

.hero-content .section-label {
  margin-bottom: 1rem;
}

.hero-content h1 {
  font-size: 3.5rem;
  margin-bottom: 1.25rem;
}

@media (max-width: 1024px) {
  .hero-content h1 { font-size: 2.75rem; }

  section { padding: 3.5rem 0; }

  .hero { min-height: 70vh; }
}

@media (max-width: 640px) {
  .hero-content h1 { font-size: 2rem; }

  section { padding: 2.5rem 0; }

  .hero { min-height: 60vh; padding-top: 5rem; }

  .hero-content { margin-top: 2vh; }
}

h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-buttons {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.hero-content p {
  font-size: 1.125rem;
  color: var(--text-body);
  max-width: 560px;
}

/* ============================================================
   14. BANDEROLE
   ============================================================ */

.banderole {
  position: relative;
  z-index: 1;
  background-color: rgba(17, 24, 39, 0.5);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 2.5rem 0;
}

.banderole-inner {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 3rem;
}

.banderole-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.4rem;
}

.banderole-value {
  font-family: 'Outfit', system-ui, sans-serif;
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.banderole-label {
  font-size: 0.9375rem;
  color: var(--text-body);
  max-width: 200px;
}

@media (max-width: 640px) {
  .banderole-inner {
    flex-direction: column;
    align-items: center;
    gap: 1.75rem;
  }

  .banderole-label {
    max-width: 260px;
  }
}

/* ============================================================
   15. CARDS
   ============================================================ */

.section-teaser {
  max-width: 700px;
  margin-top: 1rem;
  color: var(--text-body);
}

.section-closing {
  margin-top: 2.5rem;
  color: var(--text-body);
  max-width: 800px;
}

.section-closing strong {
  color: var(--text-heading);
}

.card-grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 3rem;
}

.card-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 1024px) {
  .card-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .card-grid-3 {
    grid-template-columns: 1fr;
  }
}

.card {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Problem + Solution cards — icon beside headline */
#problem .card,
#loesung .card {
  display: grid;
  grid-template-columns: 2.5rem 1fr;
  grid-template-rows: auto auto;
  column-gap: 0.75rem;
  row-gap: 0.75rem;
}

#problem .card .card-icon,
#loesung .card .card-icon {
  grid-row: 1;
  grid-column: 1;
  align-self: center;
}

#problem .card h3,
#loesung .card h3 {
  grid-row: 1;
  grid-column: 2;
  align-self: center;
}

#problem .card p,
#loesung .card p {
  grid-row: 2;
  grid-column: 1 / -1;
}

/* Problem cards — desaturated red tint */
#problem .card {
  background-color: rgba(100, 20, 20, 0.4);
  border-color: rgba(180, 50, 50, 0.2);
}

#problem .card .card-icon {
  color: #b07080;
}

/* Solution cards — cool green tint */
#loesung .card {
  background-color: rgba(15, 55, 55, 0.4);
  border-color: rgba(40, 130, 120, 0.1);
}

#loesung .card .card-icon {
  color: #88b0a0;
}

.card-icon {
  width: 2.5rem;
  height: 2.5rem;
  color: var(--accent);
  flex-shrink: 0;
}

.card-icon svg {
  width: 100%;
  height: 100%;
}

.card h3 {
  margin: 0;
}

.card p {
  color: var(--text-body);
  font-size: 0.9375rem;
  margin: 0;
}

/* ============================================================
   16. SOLUTION SECTION
   ============================================================ */

.solution-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

@media (max-width: 1024px) {
  .solution-columns {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

.solution-left .section-label {
  margin-bottom: 0.75rem;
}

.solution-left h2 {
  margin-bottom: 0;
}

.solution-steps {
  list-style: none;
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.solution-step {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.solution-step .step-number {
  width: 2.25rem;
  height: 2.25rem;
  min-width: 2.25rem;
  border-radius: 50%;
  background-color: var(--accent);
  color: var(--bg-primary);
  font-family: 'Outfit', system-ui, sans-serif;
  font-weight: 700;
  font-size: 0.9375rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.solution-step h3 {
  margin-bottom: 0.25rem;
}

.solution-step p {
  color: var(--text-body);
  font-size: 0.9375rem;
  margin: 0;
}

.solution-features-title {
  margin-bottom: 1.25rem;
  color: var(--text-heading);
}

.checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  color: var(--text-body);
  font-size: 0.9375rem;
}

.checklist-icon {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 0.1em;
}

/* Data Flow */

.data-flow {
  margin-top: 3rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem 2rem;
}

.data-flow-sources {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: 0.8125rem;
  color: var(--text-body);
  white-space: nowrap;
}

.data-flow-arrow {
  font-size: 1.25rem;
  color: var(--accent);
  flex-shrink: 0;
}

.data-flow-process {
  padding: 0.4rem 1.25rem;
  background-color: var(--accent);
  color: var(--bg-primary);
  border-radius: 999px;
  font-family: 'Outfit', system-ui, sans-serif;
  font-weight: 600;
  font-size: 0.9375rem;
  white-space: nowrap;
  flex-shrink: 0;
}

.data-flow-result {
  font-size: 0.9375rem;
  color: var(--text-heading);
  font-weight: 500;
}

@media (max-width: 640px) {
  .data-flow {
    flex-direction: column;
    align-items: flex-start;
    padding: 1.25rem;
  }

  .data-flow-arrow {
    transform: rotate(90deg);
  }
}

/* ============================================================
   17. TABS / USE CASES
   ============================================================ */

.tab-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: 2rem;
  margin-bottom: 2rem;
}

.tab-btn {
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-muted);
  background: transparent;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background-color 0.2s;
}

.tab-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.tab-btn.active,
.tab-btn[aria-selected="true"] {
  color: var(--bg-primary);
  background-color: var(--accent);
  border-color: var(--accent);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.tab-panel h3 {
  margin-bottom: 0.75rem;
}

.tab-panel > p {
  color: var(--text-body);
  max-width: 760px;
  margin-bottom: 1.5rem;
}

.example-block {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.example-label {
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin: 0;
}

blockquote {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  color: var(--text-heading);
  font-style: italic;
  margin: 0;
}

.example-response {
  color: var(--text-body);
  margin: 0;
}

.result-label {
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.75rem;
  margin-top: 0;
}

.result-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0;
}

.result-list li {
  color: var(--text-body);
  padding-left: 1.25rem;
  position: relative;
  font-size: 0.9375rem;
}

.result-list li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ============================================================
   18. TIMELINE / PROCESS
   ============================================================ */

.timeline {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-top: 3rem;
  list-style: none;
  padding: 0;
}

.timeline-step {
  flex: 1;
  position: relative;
  padding: 0 1.5rem 0 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

.timeline-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 1.1rem;
  left: calc(2.25rem / 2);
  right: 0;
  height: 2px;
  background: linear-gradient(to right, var(--accent), var(--border));
  z-index: 0;
}

.timeline-step .step-number {
  position: relative;
  z-index: 1;
  width: 2.25rem;
  height: 2.25rem;
  min-width: 2.25rem;
  border-radius: 50%;
  background-color: var(--accent);
  color: var(--bg-primary);
  font-family: 'Outfit', system-ui, sans-serif;
  font-weight: 700;
  font-size: 0.9375rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.timeline-step h3 {
  font-size: 1rem;
  margin: 0;
}

.timeline-step p {
  color: var(--text-body);
  font-size: 0.875rem;
  margin: 0;
}

@media (max-width: 640px) {
  .timeline {
    flex-direction: column;
    gap: 0;
  }

  .timeline-step {
    flex-direction: row;
    align-items: flex-start;
    gap: 1rem;
    padding: 0 0 2rem 0;
    width: 100%;
  }

  .timeline-step:not(:last-child)::after {
    top: calc(2.25rem / 2);
    left: calc(2.25rem / 2 - 1px);
    right: auto;
    bottom: 0;
    width: 2px;
    height: auto;
    background: linear-gradient(to bottom, var(--accent), var(--border));
  }

  .timeline-step > div {
    padding-top: 0.25rem;
  }
}

/* ============================================================
   19. CTA BANNER
   ============================================================ */

.cta-banner {
  background-color: rgba(26, 32, 53, 0.5);
  text-align: center;
  padding: 5rem 0;
}

.cta-banner h2 {
  max-width: 700px;
  margin-inline: auto;
}

.cta-banner .section-teaser {
  margin-inline: auto;
  margin-bottom: 2rem;
}

.cta-banner .btn {
  margin-bottom: 2rem;
}

.trust-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 0.5rem;
}

.trust-badge {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.trust-badge::before {
  content: '✓ ';
  color: var(--accent);
  font-weight: 700;
}

/* ============================================================
   20. FAQ
   ============================================================ */

.faq-list {
  max-width: 800px;
  margin-inline: auto;
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0;
}

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

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

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.125rem 0;
  font-family: 'Outfit', system-ui, sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-heading);
  text-align: left;
  cursor: pointer;
  background: none;
  border: none;
  transition: color 0.2s;
}

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

.faq-chevron {
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  transition: transform 0.3s;
  color: var(--text-muted);
}

.faq-question[aria-expanded="true"] .faq-chevron {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer-inner {
  padding-bottom: 1.25rem;
}

.faq-answer-inner p {
  color: var(--text-body);
  margin: 0;
}

/* ============================================================
   21. ABOUT
   ============================================================ */

#ueber-uns .section-teaser + .section-teaser {
  margin-top: 1rem;
}

/* ============================================================
   22. FOOTER
   ============================================================ */

footer {
  background-color: rgba(17, 24, 39, 0.5);
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
}

.footer-inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.footer-logo {
  font-size: 1rem;
}

.footer-nav ul,
.footer-legal ul {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-nav a,
.footer-legal a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.footer-nav a:hover,
.footer-legal a:hover {
  color: var(--accent);
}

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

.footer-copyright {
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-align: center;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

@media (max-width: 640px) {
  .footer-inner {
    flex-direction: column;
    gap: 1.5rem;
  }
}

/* ============================================================
   23. MODAL
   ============================================================ */

.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background-color: var(--overlay);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}

.modal-overlay:not([hidden]) {
  opacity: 1;
  visibility: visible;
}

/* When hidden attribute is removed, JS will also remove `hidden` attr to show */
.modal-overlay[hidden] {
  display: flex; /* keep flex layout but hidden via opacity/visibility */
  pointer-events: none;
}

.modal-card {
  position: relative;
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: 1rem;
  padding: 2.5rem;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border-radius: 0.375rem;
  transition: color 0.2s, background-color 0.2s;
}

.modal-close:hover {
  color: var(--text-heading);
  background-color: var(--bg-primary);
}

.modal-close svg {
  width: 1.25rem;
  height: 1.25rem;
}

.modal-card h2 {
  margin-bottom: 0.5rem;
  padding-right: 2rem;
}

.modal-teaser {
  color: var(--text-body);
  margin-bottom: 1.75rem;
  font-size: 0.9375rem;
}

/* Form */

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.125rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-heading);
}

.form-optional {
  font-weight: 400;
  color: var(--text-muted);
}

.form-group input,
.form-group textarea {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-strong);
  border-radius: 0.5rem;
  padding: 0.65rem 0.875rem;
  font: inherit;
  font-size: 0.9375rem;
  color: var(--text-heading);
  width: 100%;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(212, 147, 90, 0.15);
}

/* Suppress default browser outline for mouse/pointer users only;
   keyboard users still get the :focus-visible ring from section 8. */
.form-group input:focus:not(:focus-visible),
.form-group textarea:focus:not(:focus-visible) {
  outline: none;
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-error {
  font-size: 0.8125rem;
  color: #e55;
}

.form-alert-error {
  background-color: rgba(220, 50, 50, 0.1);
  border: 1px solid rgba(220, 50, 50, 0.3);
  border-radius: 0.5rem;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: #e55;
}

.btn-full {
  width: 100%;
  margin-top: 0.5rem;
}

.form-success {
  text-align: center;
  padding: 2rem 0;
}

.form-success p {
  font-size: 1.125rem;
  color: var(--text-heading);
  font-weight: 500;
}

@media (max-width: 640px) {
  .modal-card {
    padding: 1.75rem 1.25rem;
  }
}

/* ============================================================
   24. SECTION ALTERNATION OVERRIDE
   ============================================================ */

/* Banderole and cta-banner manage their own background;
   ensure odd/even doesn't conflict with named sections */

[data-theme="high-contrast"] .banderole {
  background-color: var(--bg-alt);
}

[data-theme="high-contrast"] #problem,
[data-theme="high-contrast"] #loesung,
[data-theme="high-contrast"] #vorgehen,
[data-theme="high-contrast"] #ueber-uns {
  background-color: var(--bg-primary);
}

[data-theme="high-contrast"] #einsatzbereiche,
[data-theme="high-contrast"] #faq {
  background-color: var(--bg-alt);
}

[data-theme="high-contrast"] .cta-banner {
  background-color: var(--bg-elevated) !important;
}

[data-theme="high-contrast"] footer {
  background-color: var(--bg-alt);
}

/* Remove colored card tints in high-contrast */
[data-theme="high-contrast"] #problem .card,
[data-theme="high-contrast"] #loesung .card {
  background-color: var(--bg-elevated);
  border-color: var(--border);
}

/* Greyscale icon colors in high-contrast */
[data-theme="high-contrast"] #problem .card .card-icon {
  color: #555;
}

[data-theme="high-contrast"] #loesung .card .card-icon {
  color: #333;
}

/* Flat black button in high-contrast — no gradient */
[data-theme="high-contrast"] .btn-primary {
  background: #000;
}

[data-theme="high-contrast"] .btn-primary:hover {
  background: #333;
  animation: none;
}

[data-theme="high-contrast"] .btn-outline {
  border-color: #000;
  color: #000;
}

[data-theme="high-contrast"] .btn-outline:hover {
  background: #000;
  color: #fff;
}

.cta-banner {
  background-color: rgba(26, 32, 53, 0.5) !important;
}

/* ============================================================
   LEGAL PAGES (Impressum, Datenschutz)
   ============================================================ */

.legal-page {
  padding-top: 7rem;
  padding-bottom: 4rem;
}

.legal-page h1 {
  margin-bottom: 2.5rem;
}

.legal-content {
  max-width: 800px;
}

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

.legal-block h2 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.legal-block h3 {
  font-size: 1.1rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
}

.legal-block p {
  color: var(--text-body);
  margin-bottom: 0.75rem;
  line-height: 1.7;
}

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

.legal-block a:hover {
  text-decoration: underline;
}

.legal-block ul {
  padding-left: 1.25rem;
  list-style: disc;
  color: var(--text-body);
}

.legal-block li {
  margin-bottom: 0.5rem;
  line-height: 1.6;
}

.legal-block strong {
  color: var(--text-heading);
}