.page-shell {
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
  padding-block: var(--section-space);
}

.site-header,
.site-footer {
  width: 100%;
}

.site-header {
  position: fixed;
  top: 0;
  z-index: 50;
  overflow: visible;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(7, 17, 31, 0.66);
  backdrop-filter: blur(20px);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.site-header.header--scrolled {
  background: rgba(7, 17, 31, 0.92);
  border-color: rgba(255, 255, 255, 0.18);
}

.site-header.header--scrolled .nav-shell {
  min-height: 64px;
}

.nav-shell,
.footer-shell {
  width: min(100% - 2rem, 1520px);
  margin-inline: auto;
}

.nav-shell {
  display: flex;
  min-height: 84px;
  align-items: center;
  gap: 1.5rem;
  transition: min-height 0.3s ease;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-left: auto;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  width: auto;
}

/* English language: compact navigation */
[data-lang="en"] .nav-links {
  gap: 0.7rem;
}

[data-lang="en"] .nav-links a {
  flex: 1;
  text-align: center;
  font-size: 0.9rem;
  padding-inline: 1rem !important;
  white-space: nowrap;
}

.footer-shell {
  padding-block: 2.5rem;
}

@media (max-width: 980px) {
  .page-shell {
    padding-block: var(--section-space-mobile);
  }

  /* Push content below absolute-positioned header on mobile */
  body:not([data-page="home"]) main > .section-block:first-child > .page-shell {
    padding-top: calc(var(--section-space-mobile) + 30px) !important;
  }

  .site-header {
    position: fixed;
  }

  .nav-shell {
    min-height: auto;
    padding-block: 1rem;
    flex-wrap: wrap;
    align-items: flex-start;
  }

  .nav-links {
    display: none;
  }

  .nav-actions {
    margin-left: auto;
  }

  .nav-actions .button {
    display: none;
  }

  .language-pill {
    display: flex;
  }
}