/* =========================================================================
   LAYOUT – Container, Header, Footer (global auf jeder Seite)
   ========================================================================= */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--space-5); }
.container--narrow { max-width: var(--container-narrow); }

.section { padding-block: var(--space-9); }
.section--sm { padding-block: var(--space-7); }
.section--alt { background: var(--color-bg-alt); }
.section--dark { background: var(--color-bg-dark); color: #fff; }
.section--dark h2, .section--dark h3 { color: #fff; }
.section--dark p { color: #c7d6e5; }

.section-head { max-width: 640px; margin-bottom: var(--space-7); }
.section-head--center { margin-inline: auto; text-align: center; }
.eyebrow { color: var(--color-primary); font-weight: 700; font-size: var(--fs-sm);
  text-transform: uppercase; letter-spacing: .08em; margin-bottom: var(--space-2); display: block; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(245,251,247,.82); backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-border); height: var(--header-h);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; height: 100%; gap: var(--space-5); }
.brand { display: inline-flex; align-items: center; flex: none; }
.brand__logo { height: 42px; width: auto; display: block; }
.brand__logo--footer { height: 40px; }
@media (max-width: 480px) { .brand__logo { height: 34px; } }

.nav { display: flex; align-items: center; gap: var(--space-6); }
.nav a { color: var(--color-text); font-weight: 600; font-size: var(--fs-sm); }
.nav a:hover { color: var(--color-primary); }
.header-actions { display: flex; align-items: center; gap: var(--space-4); }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--color-text); margin: 5px 0; transition: var(--transition); }

@media (max-width: 940px) {
  .nav-toggle { display: block; }
  .nav {
    position: fixed; inset: var(--header-h) 0 auto 0; flex-direction: column; align-items: stretch;
    background: var(--color-surface); padding: var(--space-5); gap: var(--space-2); border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow); transform: translateY(-120%); transition: transform var(--transition);
  }
  .nav[data-open="true"] { transform: translateY(0); }
  .nav a { padding: var(--space-3) 0; border-bottom: 1px solid var(--color-border); }
  .header-actions .btn--ghost { display: none; }
}
@media (max-width: 560px) {
  .header-actions .btn--primary { display: none; }
}

/* ---------- Footer ---------- */
.site-footer { background: var(--color-bg-dark); color: #c7d6e5; padding-block: var(--space-8) var(--space-6); }
.site-footer a { color: #c7d6e5; }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: var(--space-6); margin-bottom: var(--space-7); }
.site-footer h4 { color: #fff; font-size: var(--fs-sm); text-transform: uppercase; letter-spacing: .06em; margin-bottom: var(--space-4); }
.site-footer ul { list-style: none; padding: 0; }
.site-footer li { margin-bottom: var(--space-3); font-size: var(--fs-sm); }
.footer-social { display: flex; gap: var(--space-3); }
.footer-social a { display: grid; place-items: center; width: 40px; height: 40px; border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,.18); color: #c7d6e5; }
.footer-social a:hover { border-color: var(--color-accent); color: #fff; background: rgba(255,255,255,.06); }
.footer-social svg { width: 18px; height: 18px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding-top: var(--space-5);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-4); font-size: var(--fs-xs); color: #8ba5bf; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }