/* Mobile nav drawer — hidden on desktop */
.mobile-nav { display: none; }

@media (max-width: 768px) {
  .mobile-nav {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(300px, 90vw);
    background: var(--color-bg);
    z-index: 500;
    transform: translateX(100%);
    transition: transform 340ms cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
  }

  .mobile-nav.is-open { transform: translateX(0); }

  /* Drawer header */
  .mobile-nav__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
  }

  .mobile-nav__brand {
    font-family: var(--font-sans);
    font-size: var(--size-sm);
    font-weight: 300;
    letter-spacing: 0.12em;
    color: var(--color-brand);
  }

  .mobile-nav__close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-ink-muted);
    border-radius: 50%;
    transition: background var(--transition), color var(--transition);
  }

  .mobile-nav__close:hover {
    background: var(--color-border);
    color: var(--color-brand);
  }

  /* Menu items */
  .mobile-nav__inner {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-4) 0;
  }

  .mobile-nav__menu {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .mobile-nav__menu > .menu-item > a {
    display: block;
    padding: var(--space-3) var(--space-6);
    font-family: var(--font-sans);
    font-size: var(--size-base);
    font-weight: 300;
    color: var(--color-ink);
    border-bottom: 1px solid var(--color-border);
    transition: color var(--transition), background var(--transition);
  }

  .mobile-nav__menu > .menu-item > a:hover,
  .mobile-nav__menu > .menu-item.current-menu-item > a,
  .mobile-nav__menu > .menu-item.current-menu-ancestor > a {
    color: var(--color-brand);
    background: #f2ece5;
  }

  /* Sub-menu */
  .mobile-nav__menu .sub-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    background: #f7f3ee;
  }

  .mobile-nav__menu .sub-menu .menu-item a {
    display: block;
    padding: var(--space-2) var(--space-6) var(--space-2) calc(var(--space-6) + var(--space-4));
    font-size: var(--size-sm);
    font-weight: 300;
    color: var(--color-ink-muted);
    border-bottom: 1px solid var(--color-border);
    transition: color var(--transition);
  }

  .mobile-nav__menu .sub-menu .menu-item a:hover {
    color: var(--color-brand);
  }

  /* Overlay */
  body.nav-open::after {
    content: '';
    position: fixed;
    inset: 0;
    background: rgba(104,72,72,0.35);
    z-index: 499;
    backdrop-filter: blur(2px);
  }
}