/* Header */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(11,11,11,.8);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.site-header.is-scrolled { border-color: var(--color-border); }

.header__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}

.brand__logo { display: block; }

.nav { display: flex; align-items: center; gap: var(--space-5); }
.nav__toggle {
  display: none;
  padding: .4rem .7rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.nav__list {
  display: flex; gap: var(--space-5); list-style: none; padding: 0;
}
.nav__list a { opacity: .9; }
.nav__list a:hover { opacity: 1; }

.header__cta { margin-left: var(--space-5); }

/* Footer */
.site-footer { margin-top: var(--space-7); border-top: 1px solid var(--color-border); }
.footer__grid {
  display: grid; gap: var(--space-6);
  grid-template-columns: repeat(4, minmax(0,1fr));
  padding-block: var(--space-6);
}
.footer__title { font-size: 0.95rem; margin-bottom: var(--space-3); color: var(--color-text-muted); }
.footer__nav ul, .footer__legal ul, .footer__social-list {
  list-style: none; padding: 0; display: grid; gap: .5rem;
}
.footer__bottom {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
}
.footer__bottom-inner {
  height: 56px; display: flex; align-items: center; justify-content: space-between;
}

/* Responsive */
@media (max-width: 900px) {
  .nav__toggle { display: inline-block; }
  .nav__list {
    position: absolute; right: var(--container-pad); top: 64px;
    display: none; flex-direction: column; gap: var(--space-3);
    background: var(--color-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    box-shadow: var(--shadow-2);
  }
  .nav__list.is-open { display: flex; }
  .header__cta { display: none; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .footer__grid { grid-template-columns: 1fr; }
}

/* --- Burger-Grundstil --- */
.nav__toggle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .5rem .7rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-elevated);
}

/* Desktop-Menü */
.nav__list {
  display: flex;
  gap: var(--space-5);
  list-style: none;
  padding: 0;
  margin: 0;
}

/* --- Mobile --- */
@media (max-width: 900px) {
  .nav__toggle { display: inline-flex; }
  .header__cta { display: none; } /* CTA im Header auf Mobile ausblenden */

  .nav {
    position: relative;
  }

  .nav__list {
    position: absolute;
    top: 56px;           /* unter dem Header */
    right: 0;
    display: none;
    flex-direction: column;
    gap: var(--space-3);
    min-width: 220px;
    padding: var(--space-4);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-elevated);
    box-shadow: var(--shadow-2);
    z-index: 1001;
  }
  .nav__list.is-open { display: flex; }
}

/* optional: kleine Feinheiten */
.nav__list a { opacity: .9; }
.nav__list a:hover { opacity: 1; }

/* Icon-Anpassung */
.nav__icon { display: block; }