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

@media (max-width: 640px) {
  .header__inner { gap: 9px; }

  .menu-toggle {
    display: inline-grid;
    flex: 0 0 42px;
    width: 42px;
    height: 42px;
    place-items: center;
    padding: 0;
    border: 1px solid #b8ddef;
    border-radius: 3px;
    background: #fff;
    color: var(--ink);
    cursor: pointer;
  }

  .menu-toggle__lines,
  .menu-toggle__lines::before,
  .menu-toggle__lines::after {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: currentColor;
    transition: transform .2s ease, opacity .2s ease;
    content: "";
  }

  .menu-toggle__lines { position: relative; }
  .menu-toggle__lines::before { position: absolute; transform: translateY(-6px); }
  .menu-toggle__lines::after { position: absolute; transform: translateY(6px); }
  .menu-toggle[aria-expanded="true"] .menu-toggle__lines { background: transparent; }
  .menu-toggle[aria-expanded="true"] .menu-toggle__lines::before { transform: rotate(45deg); }
  .menu-toggle[aria-expanded="true"] .menu-toggle__lines::after { transform: rotate(-45deg); }

  .mobile-menu {
    position: fixed;
    z-index: 9;
    top: 72px;
    right: 0;
    left: 0;
    padding: 18px;
    border-top: 1px solid #dbeaf2;
    background: rgba(255,255,255,.98);
    box-shadow: 0 18px 32px rgba(16,36,59,.16);
  }

  .mobile-menu.is-open { display: grid; gap: 3px; }
  .mobile-menu a { padding: 14px 9px; color: var(--ink); font-size: 15px; font-weight: 800; text-decoration: none; }
  .mobile-menu__contacts { display: grid; grid-template-columns:1fr 1fr; gap:8px; margin-top:8px; padding-top:10px; border-top:1px solid var(--line); }
  .mobile-menu__contacts a { min-height:42px; display:grid; place-items:center; padding:0; color:var(--deep); background:#edf8fe; font-size:13px; }
}