/* Mobile navigation — hamburger + full-screen panel.
   Desktop nav styles stay in each page. */

.nav-toggle {
  display: none;
  position: relative;
  z-index: 202;
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  margin: -6px -8px -6px 0;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  color: var(--pearl);
}
.nav-toggle span {
  position: absolute;
  left: 12px;
  right: 12px;
  height: 1.5px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.28s ease, opacity 0.2s ease, top 0.28s ease;
}
.nav-toggle span:nth-child(1) { top: 16px; }
.nav-toggle span:nth-child(2) { top: 21px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  top: 21px;
  transform: rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  top: 21px;
  transform: rotate(-45deg);
}

@media (max-width: 900px) {
  nav { padding: 12px 18px; }
  .nav-logo { position: relative; z-index: 202; }
  .nav-toggle { display: block; }

  nav .nav-links {
    position: fixed;
    inset: 0;
    z-index: 201;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: center;
    gap: 0;
    padding: 88px 28px 40px;
    background: #060f1e;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px);
    transition: opacity 0.28s ease, visibility 0.28s ease, transform 0.28s ease;
  }
  nav .nav-links.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
  }
  nav .nav-links a,
  nav .nav-links a[href="#about"],
  nav .nav-links a[href="#venue"],
  nav .nav-links a[href="/#rsvp"],
  nav .nav-links a[href="/#venue"] {
    display: block;
    width: 100%;
    padding: 16px 4px;
    border-bottom: 1px solid rgba(200, 212, 220, 0.1);
    font-family: 'Playfair Display', serif;
    font-size: 1.55rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    text-transform: none;
    white-space: normal;
    color: var(--white);
  }
  nav .nav-links a:last-child { border-bottom: 0; }
  nav .nav-links a:hover,
  nav .nav-links a.active { color: var(--teal-lt); }

  nav.is-open {
    background: #060f1e;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  body.nav-open { overflow: hidden; }
}

@media (prefers-reduced-motion: reduce) {
  .nav-toggle span,
  nav .nav-links { transition: none; }
}