/* ==========================================================================
   human-ai.link — Design System
   Konzept: Verbindung Mensch (warm) ↔ AI (kühl), viel Weißraum, ruhig.
   ========================================================================== */

:root {
  /* Farbwelt hell */
  --bg: #fbfaf8;
  --bg-raised: #ffffff;
  --bg-subtle: #f2f0ec;
  --ink: #1c2433;
  --ink-soft: #4a5568;
  --ink-faint: #57657a; /* ≥ 4.5:1 auf --bg und --bg-subtle (WCAG AA) */
  --line: #e4e1db;

  /* Markenfarben: human = warm, ai = kühl */
  --human: #d97742;
  --human-soft: #f6e3d7;
  --ai: #2b6cb0;
  --ai-soft: #dbe9f6;
  --link-gradient: linear-gradient(90deg, var(--human), var(--ai));

  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(28, 36, 51, 0.04), 0 8px 24px rgba(28, 36, 51, 0.06);
  --shadow-hover: 0 2px 4px rgba(28, 36, 51, 0.06), 0 16px 40px rgba(28, 36, 51, 0.10);

  --font: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "Segoe UI Mono", Consolas, monospace;

  --max-width: 1120px;
  --nav-height: 72px;
}

[data-theme="dark"] {
  --bg: #12161f;
  --bg-raised: #1a202c;
  --bg-subtle: #171c26;
  --ink: #edf0f4;
  --ink-soft: #a8b2c1;
  --ink-faint: #94a3b8; /* ≥ 4.5:1 auf dunklen Flächen (WCAG AA) */
  --line: #2a3240;

  --human: #e08a5a;
  --human-soft: #3a2a1f;
  --ai: #5b9bd9;
  --ai-soft: #1c2b3d;

  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 2px 4px rgba(0, 0, 0, 0.35), 0 16px 40px rgba(0, 0, 0, 0.45);
}

/* --------------------------------------------------------------------------
   Basis
   -------------------------------------------------------------------------- */

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

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  transition: background 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4 {
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
  font-weight: 700;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.3rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; }

a {
  color: var(--ai);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

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

ul { padding-left: 1.2em; }

:focus-visible {
  outline: 2px solid var(--ai);
  outline-offset: 3px;
  border-radius: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--bg-raised);
  color: var(--ink);
  padding: 0.6em 1em;
  z-index: 200;
  border-radius: var(--radius-sm);
}
.skip-link:focus { left: 12px; top: 12px; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --------------------------------------------------------------------------
   Header / Navigation
   -------------------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-height);
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink);
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand .logo-mark { flex: 0 0 auto; display: block; }
.brand .tld { color: var(--ink-faint); font-weight: 500; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.main-nav a {
  color: var(--ink-soft);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease, background 0.15s ease;
}
.main-nav a:hover {
  color: var(--ink);
  background: var(--bg-subtle);
  text-decoration: none;
}
.main-nav a[aria-current="page"] {
  color: var(--ink);
  font-weight: 600;
}
.main-nav a.nav-cta {
  color: #fff;
  background: var(--ink);
  margin-left: 8px;
}
.main-nav a.nav-cta:hover { background: var(--ai); }
[data-theme="dark"] .main-nav a.nav-cta { color: var(--bg); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-toggle,
.nav-toggle {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink-soft);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, color 0.15s ease;
}
.theme-toggle:hover,
.nav-toggle:hover { background: var(--bg-subtle); color: var(--ink); }

.theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

.nav-toggle { display: none; }

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .main-nav {
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg-raised);
    border-bottom: 1px solid var(--line);
    padding: 12px 24px 20px;
    display: none;
    box-shadow: var(--shadow);
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 12px 14px; font-size: 1.05rem; }
  .main-nav a.nav-cta { margin: 8px 0 0; text-align: center; }
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero {
  padding: clamp(56px, 10vw, 120px) 0 clamp(40px, 7vw, 88px);
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
}

@media (max-width: 860px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { order: -1; width: 100%; max-width: 480px; margin: 0 auto; }
}

/* SVG ohne width-Attribut: explizit auf Containerbreite ziehen */
.hero-visual svg { display: block; width: 100%; height: auto; }

.eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 16px;
}

.hero h1 .accent-link {
  background: var(--link-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero .lead {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--ink-soft);
  max-width: 34em;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  transition: background 0.15s ease, color 0.15s ease, transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn-primary {
  background: var(--ink);
  color: #fff;
}
.btn-primary:hover { background: var(--ai); box-shadow: var(--shadow); }
[data-theme="dark"] .btn-primary { color: var(--bg); }
[data-theme="dark"] .btn-primary:hover { color: #fff; }

.btn-secondary {
  border: 1px solid var(--line);
  color: var(--ink);
  background: var(--bg-raised);
}
.btn-secondary:hover { border-color: var(--ink-faint); box-shadow: var(--shadow); }

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */

.section { padding: clamp(48px, 8vw, 96px) 0; }
.section-subtle { background: var(--bg-subtle); }

.section-head {
  max-width: 640px;
  margin-bottom: clamp(28px, 5vw, 56px);
}
.section-head p { color: var(--ink-soft); font-size: 1.08rem; }
.section-head.centered { margin-left: auto; margin-right: auto; text-align: center; }

/* --------------------------------------------------------------------------
   Karten & Grids
   -------------------------------------------------------------------------- */

.grid {
  display: grid;
  gap: 20px;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.card {
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}
.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-color: transparent;
}

.card h3 { margin-top: 14px; }
.card p { color: var(--ink-soft); margin-bottom: 0; font-size: 0.97rem; }
.card ul { color: var(--ink-soft); font-size: 0.95rem; margin: 12px 0 0; }
.card li { margin-bottom: 4px; }

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ai-soft);
  color: var(--ai);
}
.card-icon.warm { background: var(--human-soft); color: var(--human); }

a.card-link-wrap { color: inherit; display: block; }
a.card-link-wrap:hover { text-decoration: none; }

/* --------------------------------------------------------------------------
   Einsatzarten (Zwei-Wege-Vergleich)
   -------------------------------------------------------------------------- */

.modes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  align-items: stretch;
}
@media (max-width: 780px) { .modes { grid-template-columns: 1fr; } }

.mode {
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
}
.mode::before {
  content: "";
  position: absolute;
  top: 0; left: 32px; right: 32px;
  height: 3px;
  border-radius: 0 0 3px 3px;
}
.mode.mode-dev::before { background: var(--ai); }
.mode.mode-runtime::before { background: var(--human); }

.mode .mode-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.mode.mode-dev .mode-label { color: var(--ai); }
.mode.mode-runtime .mode-label { color: var(--human); }
.mode p { color: var(--ink-soft); }
.mode .mode-point {
  display: flex;
  gap: 10px;
  align-items: baseline;
  color: var(--ink-soft);
  font-size: 0.96rem;
  margin-bottom: 8px;
}
.mode .mode-point::before {
  content: "→";
  color: var(--ink-faint);
  flex: 0 0 auto;
}

/* --------------------------------------------------------------------------
   Prinzipien-Liste
   -------------------------------------------------------------------------- */

.principles {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 40px;
}
@media (max-width: 700px) { .principles { grid-template-columns: 1fr; } }

.principles li {
  display: flex;
  gap: 14px;
  align-items: baseline;
  font-size: 1.02rem;
}
.principles li::before {
  content: "";
  flex: 0 0 10px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--link-gradient);
  transform: translateY(1px);
}
.principles li strong { display: block; }
.principles li span { color: var(--ink-soft); font-size: 0.95rem; }

/* --------------------------------------------------------------------------
   Case Studies
   -------------------------------------------------------------------------- */

.case {
  background: var(--bg-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(28px, 4vw, 48px);
  margin-bottom: 32px;
}

.case-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.case-tag.tag-data { background: var(--ai-soft); color: var(--ai); }
.case-tag.tag-agent { background: var(--human-soft); color: var(--human); }
.case-tag.tag-branche { background: var(--bg-subtle); color: var(--ink-soft); }

/* Case-Kopfzeile: Nummer + Badges */
.case-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.case-head .case-tag { margin-bottom: 0; }
.case-num {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--ink-faint);
  margin-right: 4px;
}

/* Abschnitts-Label innerhalb eines Case (Ausgangslage, Lösung, …) */
.case-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 22px 0 6px;
}
.case-label:first-of-type { margin-top: 0; }

/* Ergebnis-Statistiken: große Zahlen als visueller Anker */
.case-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}
@media (max-width: 640px) { .case-stats { grid-template-columns: 1fr; gap: 14px; } }
.case-stats .stat strong {
  display: block;
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  background: var(--link-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.case-stats .stat span {
  display: block;
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin-top: 2px;
}

/* Die Rolle der AI – abgesetzter Vertrauens-Block */
.role-ai {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-top: 26px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  font-size: 0.94rem;
  color: var(--ink-soft);
}
.role-ai .role-icon { flex: 0 0 auto; color: var(--human); padding-top: 2px; }
.role-ai strong { display: block; color: var(--ink); margin-bottom: 2px; }
.role-ai p { margin: 0; }

.case-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}
@media (max-width: 860px) { .case-grid { grid-template-columns: 1fr; } }

.case p { color: var(--ink-soft); }
.case .fact-list { list-style: none; padding: 0; margin: 20px 0 0; }
.case .fact-list li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 8px 0;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.96rem;
}
.case .fact-list li::before { content: "✓"; color: var(--ai); font-weight: 700; flex: 0 0 auto; }

.case-visual {
  background: var(--bg-subtle);
  border-radius: var(--radius-sm);
  padding: 20px;
}

/* --------------------------------------------------------------------------
   Prozess-Schritte
   -------------------------------------------------------------------------- */

.steps { counter-reset: step; list-style: none; padding: 0; margin: 24px 0 0; }
.steps li {
  counter-increment: step;
  display: flex;
  gap: 18px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink-faint);
  padding-top: 3px;
  flex: 0 0 28px;
}
.steps li strong { display: block; margin-bottom: 2px; }
.steps li span { color: var(--ink-soft); font-size: 0.95rem; }

/* --------------------------------------------------------------------------
   CTA-Band
   -------------------------------------------------------------------------- */

.cta-band {
  background: var(--ink);
  color: #fff;
  border-radius: var(--radius);
  padding: clamp(36px, 6vw, 64px);
  text-align: center;
  position: relative;
  overflow: hidden;
}
[data-theme="dark"] .cta-band { background: var(--bg-raised); border: 1px solid var(--line); color: var(--ink); }

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--link-gradient);
  opacity: 0.08;
  pointer-events: none;
}
.cta-band h2 { margin-bottom: 10px; }
.cta-band p { color: rgba(255, 255, 255, 0.7); max-width: 36em; margin: 0 auto 28px; }
[data-theme="dark"] .cta-band p { color: var(--ink-soft); }
.cta-band .btn-primary { background: #fff; color: var(--ink); }
.cta-band .btn-primary:hover { background: var(--ai-soft); }
[data-theme="dark"] .cta-band .btn-primary { background: var(--ink); color: var(--bg); }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.site-footer {
  border-top: 1px solid var(--line);
  padding: 48px 0 32px;
  margin-top: clamp(48px, 8vw, 96px);
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } }

.site-footer .footer-heading {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  margin: 0 0 12px;
}
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a { color: var(--ink-soft); }
.site-footer a:hover { color: var(--ink); }

.footer-meta {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--ink-faint);
  font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   Scroll-Reveal (dezent, respektiert reduced motion)
   -------------------------------------------------------------------------- */

html.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
html.js .reveal.visible {
  opacity: 1;
  transform: none;
}

/* Animierte Verbindungslinien im Hero-SVG */
.flow-line {
  stroke-dasharray: 6 8;
  animation: flow 1.6s linear infinite;
}
@keyframes flow {
  to { stroke-dashoffset: -14; }
}
.pulse-node {
  animation: pulse 3s ease-in-out infinite;
  transform-origin: center;
  transform-box: fill-box;
}
@keyframes pulse {
  0%, 100% { opacity: 0.65; }
  50% { opacity: 1; }
}

/* --------------------------------------------------------------------------
   Signature-Element: Hero-Sequenz (Orange → Blau → Blau → Orange)
   Grundzustand = statischer ENDZUSTAND (No-JS, reduced motion, nach Ablauf).
   Die Sequenz läuft nur additiv über die JS-Klasse .is-animated – einmal
   erzählen, dann Ruhe. Keine Loops.
   -------------------------------------------------------------------------- */

.hero-flow {
  --hero-seq-duration: 3.5s;          /* Gesamtdauer der Sequenz */
  --hero-node-delay-1: 0s;            /* Mensch: Ziel beschreiben */
  --hero-node-delay-2: 1.2s;          /* AI arbeitet */
  --hero-node-delay-3: 2.3s;          /* Automatische Prüfung */
  --hero-node-delay-4: 3s;            /* Mensch entscheidet */
  /* Partikelstart je Segment (3/2/2 Partikel, fix im Markup): */
  --hero-particles-1: 0.45s;
  --hero-particles-2: 1.75s;
  --hero-particles-3: 2.55s;
}

.hf-label {
  font-family: var(--font);
  font-size: 16px;                    /* Akzeptanz: Labels ≥ 15px */
  font-weight: 600;
  fill: var(--ink);                   /* Kontrast AA statt Markenfarbe */
  letter-spacing: -0.01em;
}

.hf-node { transform-box: fill-box; transform-origin: center; }
.hf-ring { opacity: 0; transform-box: fill-box; transform-origin: center; }
.hf-glow { opacity: 0.16; }                       /* dezenter Glow im Endzustand */
.hf-check-path { stroke-dasharray: 46; stroke-dashoffset: 0; }
.hf-particle { opacity: 0; }
.hf-p1a, .hf-p1b, .hf-p1c { offset-path: path("M158 120 C 235 88, 305 88, 358 116"); }
.hf-p2a, .hf-p2b { offset-path: path("M400 158 C 431 198, 431 232, 402 268"); }
.hf-p3a, .hf-p3b { offset-path: path("M362 312 C 305 344, 235 344, 164 316"); }

/* Sequenz (nur mit .is-animated) */
.hero-flow.is-animated .hf-node { animation: hf-node-in 0.5s ease both; }
.hero-flow.is-animated .hf-node-1 { animation-name: hf-node-pulse; animation-duration: 0.7s; animation-delay: var(--hero-node-delay-1); }
.hero-flow.is-animated .hf-node-2 { animation-delay: var(--hero-node-delay-2); }
.hero-flow.is-animated .hf-node-3 { animation-delay: var(--hero-node-delay-3); }
.hero-flow.is-animated .hf-node-4 { animation-delay: var(--hero-node-delay-4); }

.hero-flow.is-animated .hf-ring {
  animation: hf-ring 0.9s ease-in-out both;
  animation-delay: var(--hero-node-delay-2);
}
.hero-flow.is-animated .hf-check-path {
  animation: hf-check 0.5s ease-out both;
  animation-delay: calc(var(--hero-node-delay-3) + 0.1s);
}
.hero-flow.is-animated .hf-glow {
  animation: hf-glow 0.5s ease-out both;
  animation-delay: var(--hero-node-delay-4);
}

.hero-flow.is-animated .hf-particle { animation: hf-travel 0.7s linear both; }
.hero-flow.is-animated .hf-p1a { animation-delay: var(--hero-particles-1); }
.hero-flow.is-animated .hf-p1b { animation-delay: calc(var(--hero-particles-1) + 0.12s); }
.hero-flow.is-animated .hf-p1c { animation-delay: calc(var(--hero-particles-1) + 0.24s); }
.hero-flow.is-animated .hf-p2a { animation-duration: 0.55s; animation-delay: var(--hero-particles-2); }
.hero-flow.is-animated .hf-p2b { animation-duration: 0.55s; animation-delay: calc(var(--hero-particles-2) + 0.12s); }
.hero-flow.is-animated .hf-p3a { animation-duration: 0.55s; animation-delay: var(--hero-particles-3); }
.hero-flow.is-animated .hf-p3b { animation-duration: 0.55s; animation-delay: calc(var(--hero-particles-3) + 0.12s); }

@keyframes hf-node-in {
  from { opacity: 0.35; transform: scale(0.94); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes hf-node-pulse {
  0%   { opacity: 0.6; transform: scale(0.94); }
  45%  { opacity: 1; transform: scale(1.06); }
  100% { opacity: 1; transform: scale(1); }
}
@keyframes hf-ring {
  0%   { opacity: 0; transform: rotate(0deg); }
  25%  { opacity: 0.9; }
  75%  { opacity: 0.9; }
  100% { opacity: 0; transform: rotate(300deg); }
}
@keyframes hf-check {
  from { stroke-dashoffset: 46; }
  to   { stroke-dashoffset: 0; }
}
@keyframes hf-glow {
  from { opacity: 0; }
  to   { opacity: 0.16; }
}
@keyframes hf-travel {
  0%   { offset-distance: 0%; opacity: 0; }
  12%  { opacity: 1; }
  85%  { opacity: 1; }
  100% { offset-distance: 100%; opacity: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js .reveal { opacity: 1; transform: none; transition: none; }
  .flow-line, .pulse-node { animation: none; }
  .btn:hover, .card:hover { transform: none; }
  /* Hero-Sequenz: statischer Endzustand, vollständig lesbar */
  .hero-flow.is-animated,
  .hero-flow.is-animated * { animation: none !important; }
}

/* --------------------------------------------------------------------------
   Text-Seiten (Impressum, Datenschutz)
   -------------------------------------------------------------------------- */

.prose { max-width: 720px; }
.prose h2 { font-size: 1.35rem; margin-top: 2em; }
.prose h3 { font-size: 1.1rem; margin-top: 1.6em; }
.prose p, .prose li { color: var(--ink-soft); }

.notice {
  background: var(--human-soft);
  border-left: 3px solid var(--human);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  font-size: 0.92rem;
  color: var(--ink);
  margin: 20px 0;
}

/* --------------------------------------------------------------------------
   Kontakt
   -------------------------------------------------------------------------- */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: start;
}
@media (max-width: 780px) { .contact-grid { grid-template-columns: 1fr; } }

.contact-block {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px 0;
  border-top: 1px solid var(--line);
}
.contact-block .card-icon { flex: 0 0 44px; }
.contact-block strong { display: block; }
.contact-block span, .contact-block a { color: var(--ink-soft); }