.menu-toggle,
.menu-overlay,
.mobile-menu {
  display: none;
}

@media (max-width: 1080px) {
  .site-header {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .nav,
  .header-actions {
    display: none;
  }

  .menu-toggle {
    width: 46px;
    height: 46px;
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: 999px;
    background: rgba(255, 255, 255, .08);
    display: grid;
    place-items: center;
    position: relative;
    z-index: 130;
    cursor: pointer;
  }

  .menu-toggle span {
    width: 18px;
    height: 2px;
    background: var(--paper);
    display: block;
    transition: transform .28s, opacity .2s;
  }

  body.menu-open .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  body.menu-open .menu-toggle span:nth-child(2) { opacity: 0; }
  body.menu-open .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  .menu-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(17, 19, 15, .5);
    opacity: 0;
    pointer-events: none;
    transition: opacity .28s;
    z-index: 100;
  }

  .mobile-menu {
    display: flex;
    position: fixed;
    top: 12px;
    right: 12px;
    bottom: 12px;
    width: min(390px, calc(100vw - 24px));
    z-index: 120;
    flex-direction: column;
    gap: 20px;
    padding: 26px;
    border-radius: 22px;
    background: var(--ink);
    color: var(--paper);
    box-shadow: 0 30px 100px rgba(0, 0, 0, .36);
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transform: translateX(16px) scale(.98);
    transition: opacity .24s ease, visibility .24s ease, transform .35s cubic-bezier(.2, .8, .2, 1);
  }

  body.menu-open {
    overflow: hidden;
  }

  body.menu-open .menu-overlay {
    opacity: 1;
    pointer-events: auto;
  }

  body.menu-open .mobile-menu,
  .mobile-menu.is-open {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
    transform: none;
  }

  .mobile-menu-head strong {
    display: block;
    font-family: "Instrument Serif", serif;
    font-size: 32px;
    font-weight: 400;
  }

  .mobile-menu-head span {
    display: block;
    color: rgba(255, 250, 240, .62);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .12em;
    font-weight: 900;
  }

  .mobile-menu nav {
    display: grid;
  }

  .mobile-menu nav a {
    opacity: 0;
    transform: translateY(6px);
    transition: opacity .3s, transform .3s;
    text-decoration: none;
    color: var(--paper);
    font-family: "Instrument Serif", serif;
    font-size: 30px;
    padding: 11px 0;
    border-bottom: 1px solid rgba(255, 255, 255, .1);
  }

  body.menu-open .mobile-menu nav a {
    opacity: 1;
    transform: none;
    transition-delay: calc(var(--i) * 35ms);
  }

  .mobile-contact {
    display: grid;
    gap: 8px;
    padding-top: 2px;
  }

  .mobile-contact a {
    color: rgba(255, 250, 240, .78);
    font-weight: 800;
    overflow-wrap: anywhere;
  }
}

@media (max-width: 680px) {
  body.menu-open {
    overflow: hidden;
    touch-action: none;
  }

  body.menu-open .menu-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 180;
  }

  body.menu-open .site-header {
    z-index: 190;
  }

  .mobile-menu {
    top: 8px;
    right: 8px;
    bottom: 8px;
    width: calc(100vw - 16px);
    gap: 16px;
    padding: 22px;
    overflow-y: auto;
  }

  .mobile-menu nav a {
    font-size: clamp(22px, 7vw, 26px);
    padding: 9px 0;
  }
}