/* ==========================================================================
   Layout – Container, Sektionen, Header, Footer, Raster
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--narrow { max-width: var(--container-narrow); }
.container--wide { max-width: 1520px; }

.section { padding-block: var(--space-2xl); position: relative; }
.section--tight { padding-block: var(--space-xl); }
.section--flush-top { padding-top: 0; }
.section--flush-bottom { padding-bottom: 0; }
.section--alt { background: var(--color-surface-alt-2); }
.section--white { background: var(--color-surface); }

/* Sektionskopf ---------------------------------------------------------- */
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: clamp(1.5rem, 4vw, 5rem);
  align-items: end;
  margin-bottom: var(--space-xl);
}
.section-head__title { max-width: 34rem; }
.section-head__aside { padding-bottom: 0.4rem; }
.section-head--center {
  grid-template-columns: 1fr;
  justify-items: center;
  text-align: center;
}
.section-head--center .section-head__title { max-width: 40rem; }
.section-head--center .eyebrow::before { display: none; }

/* Kopfzeile ------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: var(--z-header);
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(246, 243, 238, 0);
  transition: background var(--transition-normal),
              box-shadow var(--transition-normal),
              border-color var(--transition-normal);
  border-bottom: 1px solid transparent;
}
.site-header .container { max-width: 1520px; }   /* Kopfzeile darf breiter laufen */
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  width: 100%;
}
.site-header.is-scrolled {
  background: rgba(246, 243, 238, 0.92);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  backdrop-filter: saturate(1.4) blur(14px);
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.02);
}
.site-header--dark:not(.is-scrolled) { color: var(--color-text-invert); }
.site-header--dark:not(.is-scrolled) .nav__link { color: rgba(246, 243, 238, 0.86); }
.site-header--dark:not(.is-scrolled) .nav__link:hover { color: #fff; }
.site-header--dark:not(.is-scrolled) .logo__mark-m { stroke: var(--color-text-invert); }
.site-header--dark:not(.is-scrolled) .logo__tag { color: rgba(246, 243, 238, 0.62); }
.site-header--dark:not(.is-scrolled) .nav-toggle__bar { background: var(--color-text-invert); }
.site-header--dark:not(.is-scrolled) .btn--outline {
  border-color: rgba(246, 243, 238, 0.35);
  color: var(--color-text-invert);
}

/* Logo ------------------------------------------------------------------ */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  flex: none;
}
.logo__mark { width: 42px; height: 42px; flex: none; }
.logo__mark path { fill: none; stroke-linecap: round; stroke-linejoin: round; stroke-width: 5.5; }
.logo__mark-m { stroke: var(--color-brand-primary); transition: stroke var(--transition-normal); }
.logo__mark-b { stroke: var(--color-accent); }
.logo__text { display: flex; flex-direction: column; line-height: 1; }
.logo__word {
  font-size: 0.82rem;
  letter-spacing: 0.16em;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-brand-primary);
  transition: color var(--transition-normal);
}
.logo__word b { color: var(--color-accent-deep); font-weight: 600; }
.logo__tag {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  color: var(--color-muted);
  text-transform: uppercase;
}
.site-header--dark:not(.is-scrolled) .logo__word { color: var(--color-text-invert); }
.site-header--dark:not(.is-scrolled) .logo__word b { color: var(--color-accent); }

/* Navigation ------------------------------------------------------------ */
.nav { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2.1rem); }
.nav__link {
  position: relative;
  white-space: nowrap;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  color: var(--color-text);
  padding-block: 0.4rem;
  transition: color var(--transition-fast);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-normal);
}
.nav__link:hover::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__link[aria-current="page"] { font-weight: 600; }

.header-actions { display: flex; align-items: center; gap: 0.6rem; }

/* Umschalter mobile Navigation ------------------------------------------ */
.nav-toggle {
  display: none;
  width: 46px; height: 46px;
  align-items: center;
  justify-content: center;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  padding: 0;
}
.nav-toggle__bars { display: grid; gap: 5px; width: 20px; }
.nav-toggle__bar {
  height: 2px;
  background: var(--color-brand-primary);
  transition: transform var(--transition-normal), opacity var(--transition-fast);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobiles Navigationspanel ---------------------------------------------- */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: var(--z-nav);
  background: var(--color-dark);
  color: var(--color-text-invert);
  display: flex;
  flex-direction: column;
  padding: calc(var(--header-height) + 1.5rem) var(--gutter) 2rem;
  transform: translateY(-100%);
  visibility: hidden;
  transition: transform var(--transition-slow), visibility var(--transition-slow);
  overflow-y: auto;
}
.mobile-nav.is-open { transform: translateY(0); visibility: visible; }
body.is-locked .site-header { background: transparent; border-bottom-color: transparent;
  box-shadow: none; -webkit-backdrop-filter: none; backdrop-filter: none; }
body.is-locked .logo__word { color: var(--color-text-invert); }
body.is-locked .logo__word b { color: var(--color-accent); }
body.is-locked .logo__mark-m { stroke: var(--color-text-invert); }
body.is-locked .nav-toggle { border-color: rgba(246, 243, 238, 0.32); }
body.is-locked .nav-toggle__bar { background: var(--color-text-invert); }
.mobile-nav__list { list-style: none; margin: 0; padding: 0; }
.mobile-nav__list li { border-bottom: 1px solid rgba(246, 243, 238, 0.1); margin: 0; }
.mobile-nav__link {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  padding: 1rem 0;
  font-size: clamp(1.5rem, 6vw, 2.1rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--color-text-invert);
}
.mobile-nav__link .num {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--color-accent);
}
.mobile-nav__meta {
  margin-top: auto;
  padding-top: 2rem;
  display: grid;
  gap: 0.35rem;
  font-size: var(--fs-small);
  color: var(--color-muted-invert);
}
.mobile-nav__meta a { color: var(--color-text-invert); font-weight: 500; }

/* Fußzeile -------------------------------------------------------------- */
.site-footer {
  position: relative;
  background: var(--color-dark);
  color: var(--color-text-invert);
  padding-top: var(--space-2xl);
  overflow: hidden;
}
.site-footer__wordmark {
  position: absolute;
  left: 50%;
  bottom: -0.14em;
  transform: translateX(-50%);
  font-size: var(--fs-display);
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 0.8;
  color: rgba(246, 243, 238, 0.045);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
}
.site-footer__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  gap: clamp(1.75rem, 4vw, 3.5rem);
  padding-bottom: var(--space-xl);
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.1rem;
  font-weight: 500;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 0.55rem; }
.footer-col a, .footer-col p {
  color: rgba(246, 243, 238, 0.74);
  font-size: 0.92rem;
  transition: color var(--transition-fast);
}
.footer-col a:hover { color: var(--color-accent); }
.footer-hours { display: grid; grid-template-columns: auto 1fr; gap: 0.2rem 1rem; font-size: 0.88rem; }
.footer-hours dt { color: rgba(246, 243, 238, 0.55); }
.footer-hours dd { margin: 0; color: rgba(246, 243, 238, 0.85); }

.site-footer__bar {
  position: relative;
  border-top: 1px solid rgba(246, 243, 238, 0.12);
  padding-block: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.5rem;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(246, 243, 238, 0.55);
}
.site-footer__bar nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }

/* Raster ---------------------------------------------------------------- */
.grid { display: grid; gap: clamp(1rem, 2vw, 1.75rem); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--sidebar { grid-template-columns: minmax(0, 1fr) minmax(0, 0.72fr); gap: clamp(2rem, 5vw, 5rem); }
.grid--split { grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; }

.stack { display: grid; gap: var(--space-md); }
.stack--sm { gap: var(--space-sm); }
.stack--lg { gap: var(--space-lg); }

/* Mobile Aktionsleiste --------------------------------------------------- */
.mobile-actions {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: var(--z-actions);
  display: none;
  background: rgba(14, 14, 17, 0.94);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-top: 1px solid rgba(246, 243, 238, 0.12);
  padding-bottom: env(safe-area-inset-bottom);
}
.mobile-actions__inner { display: grid; grid-template-columns: repeat(3, 1fr); }
.mobile-actions a {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  min-height: 58px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(246, 243, 238, 0.82);
  border-right: 1px solid rgba(246, 243, 238, 0.1);
}
.mobile-actions a:last-child { border-right: 0; }
.mobile-actions a svg { width: 18px; height: 18px; fill: none; stroke: var(--color-accent); stroke-width: 1.7; }
.mobile-actions a.is-primary { background: var(--color-accent); color: var(--color-brand-primary); }
.mobile-actions a.is-primary svg { stroke: var(--color-brand-primary); }