/* ================================================================
   DESIGN-TOKENS
   Alle Farben, Schriften und Abstände hier zentral ändern.
   ================================================================ */
:root {
  /* Farben — WCAG AA konform (Kontrast ≥ 4.5:1) */
  --color-bg:          #F5F5F7;   /* Seitenhintergrund (Apple-grau)    */
  --color-surface:     #FFFFFF;   /* Karten, Header, Footer            */
  --color-border:      #D1D1D6;   /* Trennlinien                       */
  --color-text:        #1C1C1E;   /* Primärtext — Kontrast 16.7:1      */
  --color-muted:       #48484A;   /* Nebentext — Kontrast 7.2:1        */
  --color-accent:      #1A3557;   /* Dunkelblau — Kontrast 11.4:1      */
  --color-accent-mid:  #2255A4;   /* Mittelblau für Links              */
  --color-accent-lt:   #EBF0F8;   /* Heller Akzent-Hintergrund         */
  --color-cta:         #1A3557;   /* Button-Hintergrund                */
  --color-cta-text:    #FFFFFF;   /* Button-Text                       */
  --color-hero-bg:     #1A3557;   /* Hero-Hintergrund                  */
  --color-hero-text:   #FFFFFF;   /* Hero-Text                         */
  --color-strip-bg:    #EBF0F8;   /* Kontakt-Strip                     */

  /* Typografie */
  --font-serif:  'Source Serif 4', Georgia, serif;
  --font-sans:   'Source Sans 3', -apple-system, BlinkMacSystemFont,
                 'Segoe UI', Roboto, sans-serif;

  /* Layout */
  --max-width:    960px;
  --radius:       8px;
  --radius-sm:    4px;

  /* Abstände */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  6rem;
}

/* ================================================================
   RESET
   ================================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }

/* Bilder */
.figure {
  margin-top: var(--space-md);
}
.figure img {
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}
.figure figcaption {
  margin-top: 0.6rem;
  font-size: 0.82rem;
  color: var(--color-muted);
}

a { color: var(--color-accent-mid); }
a:hover { text-decoration: underline; }

/* Fokus-Ring — gut sichtbar auf iOS/Android */
:focus-visible {
  outline: 3px solid var(--color-accent-mid);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* ================================================================
   LAYOUT
   ================================================================ */
.container {
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

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

/* ================================================================
   TYPOGRAFIE
   ================================================================ */
.eyebrow {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent-mid);
  margin-bottom: 0.5rem;
}

h1 {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(2.0rem, 5vw, 3.15rem);
  line-height: 1.12;
  color: var(--color-hero-text);
}

h2 {
  font-family: var(--font-serif);
  font-weight: 300;
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

h3 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.3;
  color: var(--color-text);
}

p { margin-bottom: var(--space-sm); }
p:last-child { margin-bottom: 0; }

/* ================================================================
   HEADER & NAVIGATION
   ================================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  /* Safe area für iPhone-Notch */
  padding-top: env(safe-area-inset-top);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  height: 3.75rem;
}

.brand {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.7rem;
  line-height: 1.2;
}
.brand__text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.brand__name {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-accent);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.brand__sub {
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--color-muted);
  letter-spacing: 0.04em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Externe Links: Icon optional (nicht zwingend) */
a[target="_blank"] {
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.14em;
}

/* Desktop Nav */
.main-nav { display: flex; align-items: center; }
.nav-list {
  list-style: none;
  display: flex;
  gap: 0.25rem;
  align-items: center;
}
.nav-list a {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-muted);
  text-decoration: none;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: background 0.15s, color 0.15s;
}
.nav-list a:hover {
  background: var(--color-accent-lt);
  color: var(--color-accent);
}
.nav-list a.nav-cta {
  background: var(--color-cta);
  color: var(--color-cta-text);
  font-weight: 600;
  padding: 0.45rem 1rem;
}
.nav-list a.nav-cta:hover {
  background: var(--color-accent-mid);
  color: #fff;
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  min-width: 44px;  /* Apple HIG: min touch target */
  min-height: 44px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.2s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ================================================================
   HERO
   ================================================================ */
.hero {
  background: var(--color-hero-bg);
  color: var(--color-hero-text);
  padding-block: var(--space-xl) var(--space-lg);
}
.hero__inner { max-width: 860px; }
.hero .eyebrow { color: #A8C4E8; }

.hero__top {
  display: grid;
  grid-template-columns: 192px 1fr;
  gap: 1.6rem;
  align-items: start;
}
.hero__logo {
  width: 192px;
  height: 192px;
  border-radius: 999px;
  background: rgba(255,255,255,0.0);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 0;
  box-shadow: 0 14px 46px rgba(0,0,0,0.28);
}

.hero__title {
  margin-bottom: 0.65rem;
  letter-spacing: -0.01em;
}

.hero__lead {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.86);
  margin-bottom: var(--space-md);
  max-width: 60ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.1rem;
}

@media (max-width: 600px) {
  .hero__top {
    grid-template-columns: 124px 1fr;
    gap: 1.05rem;
  }
  .hero__logo {
    width: 124px;
    height: 124px;
  }
}

/* ================================================================
   BUTTONS
   ================================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  min-height: 44px; /* Apple HIG touch target */
  transition: background 0.15s, color 0.15s, box-shadow 0.15s;
  cursor: pointer;
  border: 2px solid transparent;
}
.btn--primary {
  background: #FFFFFF;
  color: var(--color-accent);
}
.btn--primary:hover {
  background: var(--color-accent-lt);
  text-decoration: none;
}
.btn--ghost {
  background: transparent;
  color: #FFFFFF;
  border-color: rgba(255,255,255,0.5);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.1);
  text-decoration: none;
}
.btn--light {
  background: var(--color-cta);
  color: var(--color-cta-text);
}
.btn--light:hover {
  background: var(--color-accent-mid);
  text-decoration: none;
}
.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.btn--outline:hover {
  background: var(--color-accent-lt);
  text-decoration: none;
}

/* ================================================================
   KARTEN-GRID (Leistungen)
   ================================================================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  transition: box-shadow 0.15s, border-color 0.15s;
}
.card:hover {
  box-shadow: 0 4px 16px rgba(26,53,87,0.1);
  border-color: var(--color-accent-mid);
  text-decoration: none;
}
.card__icon {
  font-size: 1.6rem;
  line-height: 1;
  margin-bottom: 0.25rem;
}
.card__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 0;
}
.card__text {
  font-size: 0.83rem;
  color: var(--color-muted);
  line-height: 1.5;
  flex: 1;
  margin: 0;
}
.card__link {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-accent-mid);
  margin-top: 0.5rem;
}

/* ================================================================
   KONTAKT-STRIP
   ================================================================ */
.contact-strip {
  background: var(--color-strip-bg);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--space-md);
}
.contact-strip__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem var(--space-md);
}
.contact-strip__text {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  color: var(--color-accent);
  margin: 0;
  flex: 1;
  min-width: 160px;
}
.contact-strip__data {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  font-size: 0.9rem;
  color: var(--color-text);
}
.contact-strip__data a {
  color: var(--color-accent-mid);
  font-weight: 600;
}

/* ================================================================
   LEISTUNGSSEITEN — Inhalt
   ================================================================ */
.page-hero {
  background: var(--color-accent);
  color: #fff;
  padding-block: var(--space-lg) var(--space-md);
}
.page-hero .eyebrow { color: #A8C4E8; }
.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 0.75rem;
}
.page-hero p {
  color: rgba(255,255,255,0.82);
  font-size: 1.05rem;
  max-width: 52ch;
  margin: 0;
}

.content-block {
  padding-block: var(--space-lg);
  background: var(--color-surface);
}
.content-block + .content-block {
  border-top: 1px solid var(--color-border);
}

.prose { max-width: 68ch; }
.prose h2 { font-size: 1.4rem; margin-bottom: 0.75rem; }
.prose h3 { margin-bottom: 0.4rem; color: var(--color-accent); }
.prose p { color: var(--color-muted); }
.prose ul {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-sm);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.prose ul li {
  padding-left: 1.25rem;
  position: relative;
  font-size: 0.95rem;
  color: var(--color-muted);
}
.prose ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-accent-mid);
  font-weight: 600;
}

/* Infobox */
.infobox {
  background: var(--color-accent-lt);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.5rem;
  margin-top: var(--space-md);
}
.infobox strong {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.4rem;
}
.infobox p { font-size: 0.9rem; color: var(--color-muted); margin: 0; }

/* ================================================================
   ÜBER MICH
   ================================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}
.qualifikation-box {
  background: var(--color-accent-lt);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.qualifikation-box h3 {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 1rem;
}
.qualifikation-box ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.qualifikation-box li {
  font-size: 0.9rem;
  color: var(--color-text);
  padding-left: 1.25rem;
  position: relative;
}
.qualifikation-box li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--color-accent-mid);
  font-weight: 600;
}

/* ================================================================
   KONTAKTSEITE
   ================================================================ */
.kontakt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: start;
}
.kontakt-details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: var(--space-md);
}
.kontakt-row .label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  display: block;
  margin-bottom: 0.15rem;
}
.kontakt-row .value {
  font-size: 1.05rem;
  color: var(--color-text);
  font-weight: 400;
}
.kontakt-row a {
  color: var(--color-accent-mid);
  font-weight: 600;
  text-decoration: none;
}
.kontakt-row a:hover { text-decoration: underline; }

/* ================================================================
   IMPRESSUM / DATENSCHUTZ
   ================================================================ */
.legal-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}
.legal-block h3 {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}
.legal-block address,
.legal-block p {
  font-size: 0.9rem;
  color: var(--color-muted);
  font-style: normal;
  line-height: 1.8;
  margin-bottom: 0.5rem;
}
.legal-block a { color: var(--color-accent-mid); }
.legal-block h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 1.25rem 0 0.4rem;
}

/* ================================================================
   BREADCRUMB
   ================================================================ */
.breadcrumb {
  padding-block: 0.75rem;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-muted);
}
.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  align-items: center;
}
.breadcrumb li + li::before { content: '›'; margin-right: 0.25rem; }
.breadcrumb a { color: var(--color-accent-mid); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb [aria-current] { color: var(--color-text); font-weight: 600; }

/* ================================================================
   FOOTER
   ================================================================ */
.site-footer {
  background: var(--color-text);
  color: #8E8E93;
  padding-block: 1.5rem;
  padding-bottom: calc(1.5rem + env(safe-area-inset-bottom));
  font-size: 0.82rem;
}
.footer__inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}
.footer__copy { margin: 0; }
.footer__links {
  list-style: none;
  display: flex;
  gap: 1.25rem;
}
.footer__links a { color: #AEAEB2; text-decoration: none; }
.footer__links a:hover { color: #FFFFFF; }

/* ================================================================
   RESPONSIVE — MOBILE FIRST
   ================================================================ */

/* Tablet (≤ 768px) */
@media (max-width: 768px) {
  .about-grid,
  .kontakt-grid,
  .legal-grid { grid-template-columns: 1fr; gap: var(--space-md); }
}

/* Mobile (≤ 600px) */
@media (max-width: 600px) {
  :root { --space-lg: 2.5rem; --space-xl: 3.5rem; }

  /* Hamburger-Menü */
  .nav-toggle { display: flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: calc(3.75rem + env(safe-area-inset-top));
    left: 0; right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem 1.25rem 1.25rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  }
  .main-nav.open { display: block; }
  .nav-list { flex-direction: column; gap: 0.25rem; }
  .nav-list a {
    display: block;
    font-size: 1.05rem;
    padding: 0.75rem 0.5rem;
    border-bottom: 1px solid var(--color-border);
  }
  .nav-list li:last-child a { border-bottom: none; }
  .nav-list a.nav-cta {
    margin-top: 0.5rem;
    text-align: center;
    border-radius: var(--radius);
  }

  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; text-align: center; }

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

  .contact-strip__inner { flex-direction: column; align-items: flex-start; }
  .contact-strip__data { flex-direction: column; gap: 0.4rem; }
  .contact-strip__inner .btn { width: 100%; text-align: center; }

  .footer__inner { flex-direction: column; align-items: flex-start; }
}

/* Sehr kleine Geräte (≤ 360px) */
@media (max-width: 360px) {
  .card-grid { grid-template-columns: 1fr; }
}

/* Reduzierte Bewegung */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}

/* ================================================================
   UP BUTTON
   ================================================================ */


/* Dark Mode (System) */
@media (prefers-color-scheme: dark) {
  :root {
    --color-bg:         #000000;
    --color-surface:    #1C1C1E;
    --color-border:     #38383A;
    --color-text:       #F2F2F7;
    --color-muted:      #AEAEB2;
    --color-accent:     #4A90D9;
    --color-accent-mid: #5BA3F5;
    --color-accent-lt:  #1C2A3A;
    --color-cta:        #2255A4;
    --color-cta-text:   #FFFFFF;
    --color-hero-bg:    #0D1F35;
    --color-strip-bg:   #1C2A3A;
  }
  .site-footer { background: #000; }
  .card { background: var(--color-surface); }
}

/* ================================================================
   UP-BUTTON (Zurück nach oben)
   ================================================================ */
.to-top {
  position: fixed;
  bottom: calc(1.5rem + env(safe-area-inset-bottom, 0px));
  right: 50%;
  transform: translateX(50%);
  z-index: 900;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  border: none;
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
}
.to-top:hover,
.to-top:focus-visible {
  background: var(--color-accent-mid);
  outline: 3px solid var(--color-accent-mid);
  outline-offset: 3px;
}
@media (prefers-reduced-motion: reduce) {
  .to-top { transition: none; }
}