/* ============================================================
   dennisduncker.de – gemeinsames Seiten-Chrome
   Header, Navigation, Menü-Overlay, Buttons, Sprachschalter.
   Wird von ALLEN Seiten geladen; das Markup injiziert script.js
   aus einer einzigen Quelle (data-site-chrome-Platzhalter).
   ============================================================ */

:root {
  --navy:       #0E2233;
  --navy-deep:  #071827;
  --navy-mid:   #16293a;
  --ice:        #D8E8EF;
  --ice-light:  #eaf3f8;
  --ice-mid:    #c0d8e8;
  --off-white:  #F1F1F1;
  --white:      #ffffff;
  --text-muted: #515b68;
  --text-body:  #374151;
  --line:       rgba(14,34,51,0.12);
  --line-ice:   rgba(216,232,239,0.5);
  --cobalt:       #0047AB;
  --cobalt-hover: #003C91;
  --slate-blue:   #456682;
  --font-sans:    'Inter', system-ui, sans-serif;
  --font-display: 'Manrope', system-ui, sans-serif;
  --header-h:     68px;
  --pad-x:        clamp(24px, 5vw, 64px);
  --radius-btn:   4px;
  --ease-out:     cubic-bezier(.16, 1, .3, 1);
}

/* Scroll-Lock: muss auf html liegen — body-overflow propagiert wegen overflow-x:clip nicht zum Viewport */
html.no-scroll { overflow: hidden; }
body.menu-open, body.modal-open { overflow: hidden; }

/* Sprachumschaltung: nur die aktive Sprache ist sichtbar */
body.lang-de .en { display: none !important; }
body.lang-en .de { display: none !important; }

:focus-visible { outline: 2px solid var(--cobalt); outline-offset: 3px; border-radius: 2px; }
.nav-overlay :focus-visible,
body.menu-open .site-header :focus-visible { outline-color: var(--ice); }

.skip-link {
  position: absolute; top: -100px; left: 20px;
  background: var(--navy); color: var(--white);
  padding: 8px 16px; font-size: 0.8rem;
  z-index: 999; transition: top 0.2s;
  font-family: var(--font-sans);
}
.skip-link:focus { top: 20px; }

/* Nur für Screenreader sichtbar */
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip-path: inset(50%); white-space: nowrap; border: 0;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  font-family: var(--font-display);
  font-size: 0.75rem; font-weight: 700;
  letter-spacing: 0.1em; text-transform: uppercase;
  border-radius: var(--radius-btn);
  padding: 16px 30px;
  text-decoration: none;
  transition: background 0.25s, transform 0.15s, border-color 0.25s, color 0.25s;
  white-space: nowrap;
}
.btn-primary { background: var(--cobalt); color: var(--white); }
.btn-primary:hover { background: var(--cobalt-hover); color: var(--white); transform: translateY(-2px); }
.btn-sm { padding: 10px 22px; font-size: 0.72rem; font-weight: 600; }
.btn-ghost-dark { border: 1px solid rgba(216,232,239,0.35); color: var(--ice); }
.btn-ghost-dark:hover { border-color: var(--ice); color: var(--white); }
.btn .btn-icon { flex-shrink: 0; }

/* ── SPRACHSCHALTER ── */
.lang-switch { display: flex; align-items: center; gap: 6px; }
.lang-btn {
  font-family: var(--font-sans);
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.06em;
  color: var(--text-muted); padding: 4px 2px;
  background: none; border: 0; cursor: pointer;
  border-bottom: 1px solid transparent; transition: color 0.2s, border-color 0.2s;
}
.lang-btn:hover { color: var(--navy); }
.lang-btn.active { color: var(--navy); border-bottom-color: var(--slate-blue); }
.lang-sep { font-size: 0.72rem; color: var(--line); }
.lang-switch.on-dark .lang-btn { color: rgba(216,232,239,0.6); }
.lang-switch.on-dark .lang-btn:hover,
.lang-switch.on-dark .lang-btn.active { color: var(--ice); }
.lang-switch.on-dark .lang-btn.active { border-bottom-color: var(--slate-blue); }

/* ── HEADER / NAV ── */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--header-h);
  display: flex; justify-content: space-between; align-items: center;
  padding: 0 clamp(24px, 4vw, 48px);
  background: rgba(241,241,241,0.88);
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
  transition: background 0.35s, border-color 0.35s;
  font-family: var(--font-sans);
}
.header-logo { display: flex; align-items: center; color: var(--navy); transition: color 0.25s; }
/* Hover nur auf echten Hover-Geräten – verhindert dauerhaft blauen DD-Button nach Touch-Tap */
@media (hover: hover) { .header-logo:hover { color: var(--cobalt); } }

/* Logo als Maske: Farbe folgt currentColor (Navy auf Hell, Weiß auf Dunkel) */
.logo-wordmark, .logo-icon {
  background-color: currentColor;
  -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat;
  -webkit-mask-size: contain; mask-size: contain;
  -webkit-mask-position: left center; mask-position: left center;
}
.logo-wordmark {
  display: block; height: 26px; width: 145px;
  -webkit-mask-image: url('assets/logo-wordmark-navy.svg');
  mask-image: url('assets/logo-wordmark-navy.svg');
}
.logo-icon {
  display: none; height: 30px; width: 44px;
  -webkit-mask-image: url('assets/logo-mono-navy.svg');
  mask-image: url('assets/logo-mono-navy.svg');
}

.header-right { position: relative; display: flex; align-items: center; }

.header-nav {
  display: flex; align-items: center; gap: 26px;
  transition: transform 0.4s var(--ease-out), opacity 0.28s ease, visibility 0.4s;
}
.header-links { display: flex; gap: 24px; list-style: none; margin: 0; padding: 0; }
.header-links a {
  font-size: 0.8rem; font-weight: 400; letter-spacing: 0.02em;
  color: var(--text-muted); text-decoration: none; transition: color 0.2s;
}
.header-links a:hover, .header-links a.active { color: var(--cobalt); }
.header-nav .lang-switch { padding-left: 2px; }

/* Reduzierter Zustand: große Navigation schiebt sich kontrolliert nach rechts
   heraus, der Burger übernimmt zeitversetzt auf derselben Achse. */
.site-header.is-condensed .header-nav {
  opacity: 0; transform: translateX(28px); visibility: hidden; pointer-events: none;
}
.nav-burger {
  position: absolute; right: -11px; top: 50%;
  display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  background: none; border: 0; cursor: pointer; padding: 0;
  opacity: 0; visibility: hidden; pointer-events: none;
  transform: translateY(-50%) translateX(-8px) scale(0.92);
  transition: opacity 0.28s ease 0.08s, transform 0.4s var(--ease-out) 0.08s, visibility 0.4s;
}
.site-header.is-condensed .nav-burger {
  opacity: 1; visibility: visible; pointer-events: auto;
  transform: translateY(-50%) translateX(0) scale(1);
}
.nav-burger-box { display: flex; flex-direction: column; gap: 5px; width: 22px; }
.nav-burger-box span {
  display: block; height: 2px; width: 100%;
  background: var(--navy); border-radius: 1px;
  transition: transform 0.3s var(--ease-out), opacity 0.2s, background 0.3s;
}

/* Offenes Menü: Header wird transparent, Logo weiß, Burger wird zum X */
body.menu-open .site-header { background: transparent; border-color: transparent; -webkit-backdrop-filter: none; backdrop-filter: none; }
body.menu-open .header-logo { color: var(--white); }
body.menu-open .nav-burger-box span { background: var(--ice); }
body.menu-open .nav-burger-box span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.menu-open .nav-burger-box span:nth-child(2) { opacity: 0; }
body.menu-open .nav-burger-box span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
body.menu-open .site-header .header-nav { opacity: 0; visibility: hidden; pointer-events: none; }

@media (max-width: 900px) {
  .header-nav { display: none; }
  .nav-burger {
    position: static; transform: none;
    opacity: 1; visibility: visible; pointer-events: auto;
    margin-right: -11px;
    transition: none; /* mobil immer sichtbar, kein Einblenden nötig */
  }
  /* Header bleibt fix (position:fixed, top:0); Condense ist nur ein Desktop-Effekt.
     Mobil darf der Burger beim Scrollen NICHT verschoben werden (kein translate/hide-on-scroll). */
  .site-header.is-condensed .nav-burger {
    position: static; transform: none;
    opacity: 1; visibility: visible; pointer-events: auto;
  }
  /* Mobil nur das Signet, kein Namenszug in der Kopfzeile */
  .logo-wordmark { display: none; }
  .logo-icon { display: block; }
}

/* ── MENÜ-OVERLAY ── */
.nav-overlay {
  position: fixed; inset: 0; z-index: 90;
  background:
    radial-gradient(90% 70% at 85% 8%, rgba(85,124,153,0.22) 0%, rgba(85,124,153,0) 60%),
    var(--navy-deep);
  display: flex; flex-direction: column; justify-content: space-between;
  padding: calc(var(--header-h) + clamp(16px, 4vh, 48px)) var(--pad-x) clamp(24px, 4vh, 44px);
  opacity: 0; visibility: hidden;
  transition: opacity 0.4s var(--ease-out), visibility 0.4s;
  overflow-y: auto;
  font-family: var(--font-sans);
}
.nav-overlay.is-open { opacity: 1; visibility: visible; }

.overlay-links { display: flex; flex-direction: column; list-style: none; margin: 0; padding: 0; }
.overlay-links li { border-bottom: 1px solid rgba(216,232,239,0.08); }
.overlay-links a {
  display: flex; align-items: baseline; gap: 18px;
  padding: clamp(14px, 2.6vh, 24px) 0;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4.5vh, 2.9rem);
  font-weight: 800; letter-spacing: -0.03em; line-height: 1.1;
  color: var(--white); text-decoration: none;
  transition: color 0.2s, transform 0.3s var(--ease-out);
}
.overlay-links a:hover { color: var(--ice); transform: translateX(8px); }
.overlay-num {
  font-family: var(--font-display);
  font-size: 0.68rem; font-weight: 700; letter-spacing: 0.18em;
  color: var(--slate-blue); flex-shrink: 0; width: 26px;
}
/* Gestaffeltes Einblenden der Menüpunkte */
.overlay-links li { opacity: 0; transform: translateY(22px); transition: opacity 0.45s var(--ease-out), transform 0.45s var(--ease-out); }
.nav-overlay.is-open .overlay-links li { opacity: 1; transform: translateY(0); }
.nav-overlay.is-open .overlay-links li:nth-child(1) { transition-delay: 0.06s; }
.nav-overlay.is-open .overlay-links li:nth-child(2) { transition-delay: 0.11s; }
.nav-overlay.is-open .overlay-links li:nth-child(3) { transition-delay: 0.16s; }
.nav-overlay.is-open .overlay-links li:nth-child(4) { transition-delay: 0.21s; }
.nav-overlay.is-open .overlay-links li:nth-child(5) { transition-delay: 0.26s; }
.nav-overlay.is-open .overlay-links li:nth-child(6) { transition-delay: 0.31s; }

.overlay-footer {
  display: flex; flex-direction: column; gap: 26px;
  margin-top: clamp(24px, 5vh, 48px);
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.45s var(--ease-out) 0.3s, transform 0.45s var(--ease-out) 0.3s;
}
.nav-overlay.is-open .overlay-footer { opacity: 1; transform: translateY(0); }
.overlay-ctas { display: flex; flex-wrap: wrap; gap: 12px; }
.overlay-meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 20px 28px;
  padding-top: 22px; border-top: 1px solid rgba(216,232,239,0.1);
}
.overlay-meta a {
  font-size: 0.85rem; color: rgba(216,232,239,0.7);
  text-decoration: none; transition: color 0.2s;
}
.overlay-meta a:hover { color: var(--ice); }

@media (max-width: 900px) {
  .overlay-ctas { flex-direction: column; align-items: stretch; }
  .overlay-ctas .btn { justify-content: center; }
}
@media (max-height: 620px) {
  .overlay-links a { font-size: 1.4rem; padding: 12px 0; }
}

/* Feste Kopfzeile: Seiten ohne eigene Kompensation bekommen den Versatz hier */
body[data-chrome-offset] { padding-top: var(--header-h); }

/* ── REDUCED MOTION ── */
@media (prefers-reduced-motion: reduce) {
  .site-header, .header-nav, .nav-burger, .nav-burger-box span,
  .nav-overlay, .overlay-links li, .overlay-links a, .overlay-footer,
  .btn, .skip-link {
    transition-duration: 0.01ms !important;
    transition-delay: 0s !important;
  }
  .overlay-links li, .overlay-footer { opacity: 1; transform: none; }
}