/* ===== LAYOUT — header, mobile nav, footer ===== */

.wdf-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid var(--wdf-border);
}
.wdf-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--wdf-space-3);
  gap: var(--wdf-space-5);
}
.wdf-logo-text { font-size: 20px; font-weight: 800; color: var(--wdf-navy); }

.wdf-header__nav { flex: 1; display: flex; justify-content: center; }
.wdf-nav__list { display: flex; gap: var(--wdf-space-5); list-style: none; margin: 0; padding: 0; }
.wdf-nav__list a { font-size: 14px; font-weight: 600; color: var(--wdf-ink); }
.wdf-nav__list a:hover { color: var(--wdf-blue); }

.wdf-header__cta { display: flex; align-items: center; gap: var(--wdf-space-3); }

.wdf-lang-switch { display: flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 700; }
.wdf-lang-switch__link { color: var(--wdf-slate); }
.wdf-lang-switch__link:hover { color: var(--wdf-blue); }
.wdf-lang-switch__link.is-active { color: var(--wdf-navy); }
.wdf-lang-switch__sep { color: var(--wdf-border); }
.wdf-mobile-nav .wdf-lang-switch { margin-bottom: var(--wdf-space-5); font-size: 15px; }

.wdf-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  width: 40px; height: 40px;
  background: none; border: 1px solid var(--wdf-border); border-radius: var(--wdf-radius-sm);
  cursor: pointer;
}
.wdf-nav-toggle span { display: block; width: 18px; height: 2px; background: var(--wdf-navy); margin-inline: auto; }

.wdf-mobile-nav {
  position: fixed; inset: 0;
  top: 0;
  background: #fff;
  z-index: 200;
  padding: var(--wdf-space-5);
  overflow-y: auto;
}
.wdf-mobile-nav__list { list-style: none; margin: 0 0 var(--wdf-space-6); padding: 0; }
.wdf-mobile-nav__list li { border-bottom: 1px solid var(--wdf-border); }
.wdf-mobile-nav__list a { display: block; padding: var(--wdf-space-4) 0; font-size: 17px; font-weight: 700; color: var(--wdf-navy); }
.wdf-mobile-nav__cta { display: flex; flex-direction: column; gap: var(--wdf-space-3); }

.wdf-footer--placeholder {
  background: var(--wdf-navy);
  color: #fff;
  padding: var(--wdf-space-6) 0;
  text-align: center;
  font-size: 13px;
}

.wdf-whatsapp-float {
  position: fixed;
  bottom: 22px;
  inset-inline-start: 22px;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: var(--wdf-wa-green);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 18px rgba(37, 211, 102, .4);
  z-index: 150;
  transition: transform .2s, background .2s;
}
.wdf-whatsapp-float:hover { background: var(--wdf-wa-green-dark); transform: scale(1.06); }

@media (max-width: 900px) {
  .wdf-header__nav { display: none; }
  .wdf-header__cta .wdf-btn--sm { display: none; }
  .wdf-nav-toggle { display: flex; }
}