/**
 * CÍRCULO ORIGEM — Layout
 */

.shell {
  max-width: var(--page-width);
  margin-inline: auto;
  padding-inline: clamp(var(--gutter), 4vw, 60px);
}

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: calc(var(--header-h) + env(safe-area-inset-top, 0px));
  padding-top: calc(12px + env(safe-area-inset-top, 0px));
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--header-border);
}

.header-inner {
  display: flex;
  align-items: center;
  height: calc(var(--header-h) - 12px);
  padding-inline: var(--frame-pad, clamp(var(--gutter), 4vw, 60px));
}

.logo {
  text-decoration: none;
  color: var(--text-muted);
}

.logo.mark {
  display: inline-flex;
  align-items: center;
  line-height: 0;
}

.logo.mark img {
  display: block;
  height: 26.4px; /* 24px + 10 % */
  width: auto;
}

/* Dunkler Grund: Marke hell (Unterseiten ohne Fotoszene) */
:root[data-theme="dark"] body:not(.home) .logo.mark img {
  filter: invert(1);
}

.logo:hover {
  opacity: 0.75;
}

.home .logo-wrapper {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transition: opacity 0.35s var(--ease), visibility 0.35s var(--ease);
}

.home .header {
  position: fixed;
  left: 0;
  right: 0;
  width: 100%;
  max-width: var(--screen-max);
  margin-inline: auto;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom-color: transparent;
}

/* Nav immer sichtbar */
.home .nav-right {
  display: flex;
  visibility: visible;
  opacity: 1;
}

/* Gruppe bleibt zusammen, sitzt näher am rechten Bildrand */
@media (min-width: 769px) {
  .home .nav-right {
    margin-right: calc(-1 * var(--frame-pad) + 24px);
    transform: translateY(-8px);
  }
}

/* Foto-Szenen (Schwelle, Abspann): weisse Nav */
.home .header .logo {
  color: #f5f5f7;
}

.home .header .logo img {
  filter: invert(1) drop-shadow(0 1px 2px rgba(0, 0, 0, 0.45));
}

.home .nav-right a {
  color: #f5f5f7;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.22);
  background: none;
  padding: 0;
  min-height: var(--tap);
}

.home .nav-right a:hover,
.home .nav-right a.is-active {
  color: #f5f5f7;
  opacity: 0.88;
}

.home .menu-toggle span {
  background: #f5f5f7;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.45);
}

.home .menu-toggle[aria-expanded="true"] span {
  background: var(--text);
}

/* Helle Szenen: normale Textfarbe */
.home.home-over-ground .header {
  background: var(--header-bg);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom-color: transparent;
}

.home.home-over-ground .nav-right a {
  color: var(--nav);
  text-shadow: none;
}

.home.home-over-ground .nav-right a:hover,
.home.home-over-ground .nav-right a.is-active {
  color: var(--nav-active);
  opacity: 1;
}

.home.home-over-ground .menu-toggle span {
  background: var(--text);
  box-shadow: none;
}

.home.home-over-ground .header .logo {
  color: var(--nav);
}

.home.home-over-ground .header .logo img {
  /* Marke schwarz wie geliefert */
  filter: none;
  opacity: 1;
}

:root[data-theme="dark"] .home.home-over-ground .header .logo img {
  filter: invert(1);
}

.home.home-over-ground .header .logo:hover img,
.home.home-over-ground .header .logo:focus-visible img {
  opacity: 0.75;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-left: auto;
}

.nav-right a {
  font-family: var(--font-sans);
  font-weight: 400;
  font-size: var(--fs-nav);
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--nav);
  min-height: var(--tap);
  display: inline-flex;
  align-items: center;
}

.nav-right a:hover,
.nav-right a.is-active {
  color: var(--nav-active);
}

.menu-toggle {
  display: none;
  position: relative;
  width: var(--tap);
  height: var(--tap);
  min-width: var(--tap);
  min-height: var(--tap);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 0;
  background: transparent;
  border: none;
  border-radius: 0;
  cursor: pointer;
  z-index: 1002;
  transition: background 0.28s var(--ease), border-radius 0.28s var(--ease);
}

.menu-toggle span {
  position: absolute;
  left: 50%;
  top: 50%;
  display: block;
  width: 18px;
  height: 1px;
  margin: -0.5px 0 0 -9px;
  background: var(--text);
  transition:
    transform 0.28s var(--ease),
    opacity 0.28s var(--ease),
    background 0.28s var(--ease);
}

/* Hamburger: drei Striche */
.menu-toggle span:nth-child(1) {
  transform: translateY(-6px);
}

.menu-toggle span:nth-child(2) {
  transform: none;
}

.menu-toggle span:nth-child(3) {
  transform: translateY(6px);
}

/* X: aussen kreuzen, Mitte aus */
.menu-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.menu-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg);
}

.nav-mobile {
  display: none;
}

.footer {
  border-top: none;
  background: var(--bg);
  box-sizing: border-box;
  min-height: 0;
  scroll-snap-align: none;
  scroll-snap-stop: normal;
  display: block;
  padding: clamp(3rem, 8vh, 5rem) 0 calc(28px + env(safe-area-inset-bottom, 0px));
  margin-top: 0;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 1.25rem 2.5rem;
  padding-inline: var(--frame-pad, clamp(var(--gutter), 6vw, 80px));
}

.footer-brand {
  display: flex;
  align-items: baseline;
  gap: 1.75rem;
  min-width: 0;
}

.footer-brand .wordmark {
  font-size: var(--fs-nav);
}

.footer-places {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--space-2xs) var(--space-md);
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  line-height: var(--lh-tight);
  text-transform: none;
  color: var(--text-muted);
}

.footer-places strong {
  font-weight: 400;
  color: var(--text);
  text-transform: none;
  letter-spacing: normal;
}

.footer-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  list-style: none;
  margin: 0;
  padding: 0;
}

@media (max-width: 768px) {
  .shell,
  .header-inner,
  .footer-content {
    padding-inline: var(--frame-pad, var(--gutter));
  }

  /* hoehere Spezifitaet: .home .nav-right bleibt sonst sichtbar */
  .nav-right,
  .home .nav-right {
    display: none;
  }

  .menu-toggle,
  .home .menu-toggle {
    display: flex;
    margin-left: auto;
    /* Gesamte 44px-Tippfläche und das X bleiben innerhalb des Bildrands. */
    margin-right: 0;
  }

  .nav-mobile {
    display: flex;
    position: fixed;
    inset: 0;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    background: var(--menu-bg);
    /* Unter dem Header (1002), damit X klickbar bleibt */
    z-index: 1000;
    visibility: hidden;
    transform: translateY(-12px);
    opacity: 0;
    transition:
      transform 0.4s var(--ease),
      opacity 0.35s var(--ease),
      visibility 0.35s var(--ease);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    padding-top: calc(var(--header-h) + env(safe-area-inset-top, 0px) + 0.5rem);
    padding-bottom: max(1.25rem, env(safe-area-inset-bottom, 0px));
    padding-inline: var(--frame-pad, var(--gutter));
    box-sizing: border-box;
  }

  .nav-mobile[aria-hidden="false"] {
    visibility: visible;
    transform: translateY(0);
    opacity: 1;
  }

  /* Header über dem Overlay — sonst ist das X hinter dem Menü und tot */
  body.menu-open .header {
    z-index: 1002;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom-color: transparent;
  }

  /* Header-Logo aus: sonst liegt es über Impressum/Datenschutz im Menü */
  body.menu-open .logo-wrapper {
    visibility: hidden;
    pointer-events: none;
  }

  .nav-mobile-logo {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    margin: 0 0 1.75rem;
    text-decoration: none;
    color: var(--text);
    flex-shrink: 0;
  }

  .nav-mobile-logo img {
    display: block;
    width: 3.3rem; /* 2.75 × 1.2 */
    height: auto;
  }

  .nav-mobile-primary {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
    flex: 1 1 auto;
    justify-content: center;
    min-height: 0;
  }

  .nav-mobile-primary a {
    display: inline-flex;
    align-items: center;
    min-height: 3.25rem;
    padding: 0.35rem 0;
    font-family: var(--font-serif);
    font-weight: 400;
    font-size: clamp(1.85rem, 7.5vw, 2.4rem);
    letter-spacing: 0.01em;
    line-height: 1.15;
    text-decoration: none;
    color: var(--text);
  }

  .nav-mobile-legal {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.15rem;
    margin-top: auto;
    padding-top: 2rem;
    flex-shrink: 0;
  }

  .nav-mobile-legal a {
    display: inline-flex;
    align-items: center;
    min-height: 2.75rem;
    padding: 0.2rem 0;
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: 1rem;
    letter-spacing: 0.01em;
    text-decoration: none;
    color: var(--text-muted);
  }

  .nav-mobile a:hover,
  .nav-mobile a:focus-visible {
    opacity: 0.7;
  }

  /* X in Kreis wenn offen — On-Anleihen, Circulo-ruhig */
  .menu-toggle[aria-expanded="true"],
  .home .menu-toggle[aria-expanded="true"] {
    border-radius: 50%;
    background: #e8e8ed;
  }

  .header-inner {
    justify-content: flex-start;
    position: relative;
  }

  .logo-wrapper {
    position: static;
    left: auto;
    transform: none;
    margin-right: auto;
  }

  .menu-toggle {
    position: relative;
    z-index: 1002;
    left: auto;
    margin-left: auto;
  }

  .footer {
    padding: 4.5rem 0 calc(36px + env(safe-area-inset-bottom, 0px));
  }

  .footer-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.5rem;
  }

  .footer-brand {
    flex-direction: column;
    align-items: center;
    gap: 0.85rem;
  }

  .footer-places {
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
  }

  .footer-links {
    justify-content: center;
    gap: 12px;
  }
}