@import url('fonts.css?v=2');

/* ==========================================================================
   Design Tokens
   ========================================================================== */
:root {
  /* Colors -- Weiß / Lichtgrau / Anthrazit / Taubengrau (keine dunklen Flächen) */
  --color-bg: #FFFFFF;
  --color-bg-alt: #F1F0EE;
  --color-bg-dark: #F1F0EE;
  --color-ink: #2B2B2E;
  --color-ink-soft: #47474A;
  --color-muted: #6E6A67;
  --color-muted-soft: #B9B5B1;
  --color-accent: #2B2B2E;
  --color-accent-soft: #47474A;
  --color-on-dark: #2B2B2E;
  --color-on-dark-muted: #6E6A67;
  --color-on-accent: #FFFFFF;
  --color-border: #E2E0DD;
  --color-border-dark: #D8D6D2;

  /* Typography */
  --font-display: 'Jost', 'Century Gothic', 'Futura', -apple-system, sans-serif;
  --font-body: 'Jost', 'Century Gothic', 'Futura', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --step--1: clamp(0.83rem, 0.8rem + 0.15vw, 0.9rem);
  --step-0: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --step-1: clamp(1.2rem, 1.1rem + 0.4vw, 1.4rem);
  --step-2: clamp(1.5rem, 1.35rem + 0.7vw, 1.9rem);
  --step-3: clamp(1.9rem, 1.6rem + 1.3vw, 2.6rem);
  --step-4: clamp(2.4rem, 1.9rem + 2.2vw, 3.6rem);
  --step-5: clamp(3rem, 2.2rem + 3.6vw, 5rem);

  /* Spacing (8px rhythm, spacious marketing density) */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 9rem;

  --container-max: 1240px;
  --container-narrow: 780px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-soft: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 200ms;
  --dur-base: 400ms;
  --dur-slow: 700ms;

  --radius-sm: 2px;
  --radius-md: 4px;
}

/* ==========================================================================
   Reset
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; }
html:focus-within { scroll-behavior: smooth; }

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, picture, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; padding: 0; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.01em;
  text-wrap: balance;
  overflow-wrap: break-word;
  hyphens: auto;
}

button { cursor: pointer; background: none; border: none; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }

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

/* ==========================================================================
   Layout helpers
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

@media (min-width: 640px) {
  .container { padding-inline: var(--space-xl); }
}

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

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

@media (min-width: 900px) {
  .section { padding-block: var(--space-3xl); }
}

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

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-xl);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: currentColor;
}

.section-head h2 {
  font-size: var(--step-3);
  margin-bottom: var(--space-sm);
}

.section-head p {
  color: var(--color-muted);
  font-size: var(--step-1);
}

.section--dark .section-head p { color: var(--color-on-dark-muted); }

.visually-hidden {
  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;
  left: var(--space-sm);
  top: -60px;
  z-index: 200;
  background: var(--color-ink);
  color: var(--color-on-accent);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-sm);
  transition: top var(--dur-fast) var(--ease-out);
}

.skip-link:focus { top: var(--space-sm); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  padding: 0.9em 1.7em;
  font-size: var(--step--1);
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  transition: transform var(--dur-fast) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
  white-space: nowrap;
}

.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--color-ink);
  color: var(--color-on-accent);
  border: 1px solid var(--color-ink);
}
.btn--primary:hover { background: var(--color-ink-soft); border-color: var(--color-ink-soft); }

.btn--ghost {
  background: transparent;
  color: var(--color-ink);
  border: 1px solid rgba(43, 43, 46, 0.22);
}
.btn--ghost:hover { border-color: var(--color-accent); color: var(--color-accent); }

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

/* ==========================================================================
   Header / Navigation
   ========================================================================== */
.site-header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  padding-block: var(--space-md);
  transition: padding var(--dur-base) var(--ease-out),
              background-color var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out);
}

.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out);
  z-index: -1;
}

.site-header.is-scrolled {
  padding-block: var(--space-xs);
  box-shadow: 0 1px 0 var(--color-border);
}
.site-header.is-scrolled::before { opacity: 1; }

.site-header.is-hidden { transform: translateY(-100%); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.nav-logo span { color: var(--color-accent); }

.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-lg);
}

@media (min-width: 900px) {
  .nav-links { display: flex; }
}

.nav-links a {
  position: relative;
  font-size: var(--step--1);
  font-weight: 500;
  padding-block: var(--space-3xs);
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0; right: 100%;
  bottom: -2px;
  height: 1px;
  background: var(--color-accent);
  transition: right var(--dur-base) var(--ease-out);
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after { right: 0; }

.nav-cta { display: none; }
@media (min-width: 900px) { .nav-cta { display: inline-flex; } }

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 26px;
  padding: var(--space-2xs);
  z-index: 110;
}

@media (min-width: 900px) { .nav-toggle { display: none; } }

.nav-toggle span {
  display: block;
  height: 1.5px;
  width: 100%;
  background: var(--color-ink);
  transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast) var(--ease-out);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 105;
  background: var(--color-bg-dark);
  color: var(--color-on-dark);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-xl) var(--space-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out),
              visibility 0s linear var(--dur-base);
}

.mobile-menu.is-open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: opacity var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out),
              visibility 0s;
}

.mobile-menu ul { display: flex; flex-direction: column; gap: var(--space-md); }

.mobile-menu a {
  font-family: var(--font-display);
  font-size: var(--step-3);
}

.mobile-menu .btn { margin-top: var(--space-lg); align-self: flex-start; }

@media (min-width: 900px) { .mobile-menu { display: none; } }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--space-3xl) + var(--space-lg));
  padding-bottom: var(--space-2xl);
  overflow: hidden;
  background: var(--color-bg);
}

.hero-grid {
  display: grid;
  gap: var(--space-2xl);
  align-items: center;
}

@media (min-width: 980px) {
  .hero-grid { grid-template-columns: 1.1fr 0.9fr; gap: var(--space-xl); }
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.hero-eyebrow::before {
  content: '';
  width: 28px; height: 1px;
  background: currentColor;
}

.hero h1 {
  font-size: var(--step-5);
  max-width: 14ch;
}

.hero h1 em {
  font-style: italic;
  color: var(--color-accent);
  font-weight: 500;
}

.hero-lede {
  margin-top: var(--space-md);
  max-width: 46ch;
  font-size: var(--step-1);
  color: var(--color-ink-soft);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

.hero-meta {
  display: flex;
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.hero-meta div strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--step-2);
  color: var(--color-accent);
}

.hero-meta div span {
  font-size: var(--step--1);
  color: var(--color-muted);
}

.hero-art {
  position: relative;
  aspect-ratio: 4 / 5;
}

.hero-art svg {
  width: 100%;
  height: 100%;
}

.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: var(--space-lg);
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2xs);
  font-size: var(--step--1);
  color: var(--color-muted);
}

.hero-scroll .line {
  width: 1px;
  height: 36px;
  background: linear-gradient(var(--color-border), transparent);
  position: relative;
  overflow: hidden;
}

.hero-scroll .line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-accent);
  animation: scrollLine 2.2s var(--ease-out) infinite;
}

@keyframes scrollLine {
  0% { top: -100%; }
  60% { top: 100%; }
  100% { top: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .hero-scroll .line::after { animation: none; top: 0; }
}

/* ==========================================================================
   Reveal animations
   ========================================================================== */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--dur-slow) var(--ease-out-soft),
              transform var(--dur-slow) var(--ease-out-soft);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal-group] > * {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-base) var(--ease-out-soft),
              transform var(--dur-base) var(--ease-out-soft);
}

[data-reveal-group].is-visible > * {
  opacity: 1;
  transform: translateY(0);
}

[data-reveal-group].is-visible > *:nth-child(1) { transition-delay: 0ms; }
[data-reveal-group].is-visible > *:nth-child(2) { transition-delay: 90ms; }
[data-reveal-group].is-visible > *:nth-child(3) { transition-delay: 180ms; }
[data-reveal-group].is-visible > *:nth-child(4) { transition-delay: 270ms; }
[data-reveal-group].is-visible > *:nth-child(5) { transition-delay: 360ms; }
[data-reveal-group].is-visible > *:nth-child(6) { transition-delay: 450ms; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal], [data-reveal-group] > * {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* ==========================================================================
   Über uns
   ========================================================================== */
.about-grid {
  display: grid;
  gap: var(--space-xl);
  align-items: start;
}

@media (min-width: 980px) {
  .about-grid { grid-template-columns: 0.85fr 1.15fr; gap: var(--space-2xl); }
}

.about-art {
  position: relative;
}

.about-art svg { width: 100%; height: auto; }

.about-copy p {
  color: var(--color-ink-soft);
  font-size: var(--step-1);
  max-width: 58ch;
}

.about-copy p + p { margin-top: var(--space-md); }

.about-signature {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.about-signature strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--step-1);
}

.about-signature span {
  font-size: var(--step--1);
  color: var(--color-muted);
}

/* ==========================================================================
   Leistungen
   ========================================================================== */
.services-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

@media (min-width: 700px) {
  .services-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-lg); }
}

.service-card {
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out);
}

.service-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -24px rgba(43, 43, 46, 0.18);
}

.service-card .num {
  font-family: var(--font-display);
  font-size: var(--step-2);
  color: var(--color-accent);
  display: block;
  margin-bottom: var(--space-sm);
}

.service-card h3 {
  font-size: var(--step-1);
  margin-bottom: var(--space-xs);
}

.service-card p {
  color: var(--color-muted);
  font-size: var(--step--1);
}

.services-note {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: baseline;
  justify-content: space-between;
}

.services-note p {
  color: var(--color-muted);
  max-width: 52ch;
}

.hoai-track {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3xs);
}

.hoai-track span {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  font-size: var(--step--1);
  color: var(--color-muted);
  transition: all var(--dur-fast) var(--ease-out);
}

.hoai-track span.is-core {
  border-color: var(--color-accent);
  color: var(--color-accent);
  font-weight: 700;
}

/* ==========================================================================
   Team
   ========================================================================== */
.team-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

@media (min-width: 700px) {
  .team-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-lg); }
}

.team-card {
  padding: var(--space-lg);
  background: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.team-avatar {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--color-bg-dark);
  color: var(--color-accent);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: var(--step-1);
  margin-bottom: var(--space-md);
}

.team-card h3 { font-size: var(--step-1); }
.team-card .role { color: var(--color-accent); font-size: var(--step--1); font-weight: 600; margin-top: 2px; }
.team-card p.bio { color: var(--color-muted); margin-top: var(--space-sm); font-size: var(--step--1); }

.team-card .contact-line {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  margin-top: var(--space-md);
  font-size: var(--step--1);
  color: var(--color-ink-soft);
  transition: color var(--dur-fast) var(--ease-out);
}

.team-card a.contact-line:hover { color: var(--color-accent); }

/* ==========================================================================
   Kontakt
   ========================================================================== */
.contact-panel {
  display: grid;
  gap: var(--space-xl);
}

@media (min-width: 980px) {
  .contact-panel { grid-template-columns: 1fr 1fr; gap: var(--space-2xl); }
}

.contact-list { display: flex; flex-direction: column; gap: var(--space-lg); margin-top: var(--space-lg); }

.contact-item {
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
}

.contact-item .icon {
  flex: none;
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(43, 43, 46, 0.18);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-accent);
}

.contact-item h4 { font-size: var(--step-0); font-weight: 600; margin-bottom: 2px; }
.contact-item a, .contact-item p { color: var(--color-on-dark-muted); font-size: var(--step--1); }
.contact-item a:hover { color: var(--color-accent); }

.map-frame {
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-dark);
  overflow: hidden;
  aspect-ratio: 4/3;
  position: relative;
}

.map-frame svg { width: 100%; height: 100%; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--color-bg-dark);
  color: var(--color-on-dark-muted);
  padding-block: var(--space-lg);
  border-top: 1px solid var(--color-border-dark);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  justify-content: space-between;
  font-size: var(--step--1);
}

.footer-links { display: flex; gap: var(--space-md); }
.footer-links a:hover { color: var(--color-accent); }

/* ==========================================================================
   Legal pages (Impressum / Datenschutz)
   ========================================================================== */
.legal-header {
  padding-top: calc(var(--space-3xl) + var(--space-md));
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-border);
}

.legal-header .back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-size: var(--step--1);
  color: var(--color-muted);
  margin-bottom: var(--space-md);
}

.legal-header .back-link:hover { color: var(--color-accent); }

.legal-header h1 {
  font-size: clamp(2rem, 1.3rem + 5vw, 3.6rem);
  -webkit-hyphens: auto;
  hyphens: auto;
}

.legal-content { padding-block: var(--space-2xl); }

.legal-content h2 {
  font-size: var(--step-2);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.legal-content h2:first-child { margin-top: 0; }

.legal-content h3 {
  font-size: var(--step-1);
  margin-top: var(--space-lg);
  margin-bottom: var(--space-2xs);
}

.legal-content p, .legal-content li {
  color: var(--color-ink-soft);
  max-width: 68ch;
}

.legal-content p + p { margin-top: var(--space-sm); }

.legal-content ul { margin-top: var(--space-sm); display: flex; flex-direction: column; gap: var(--space-2xs); }
.legal-content li { position: relative; padding-left: var(--space-md); }
.legal-content li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.65em;
  width: 6px; height: 1px;
  background: var(--color-accent);
}

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

.legal-content .fact-box {
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  background: var(--color-bg-alt);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  max-width: 44ch;
}

.legal-content .fact-box p { color: var(--color-ink); }
.legal-content .fact-box p + p { margin-top: var(--space-3xs); }