/* Final responsive navigation layer: the compact menu only exists on small screens. */
.mobile-menu-toggle,
.mobile-menu,
.mobile-menu-backdrop {
  display: none;
}

/* The skills band is intentionally white; use the portfolio ink for visible separators. */
.marquee b {
  color: #111112 !important;
}

@media (max-width: 700px) {
  .site-header {
    position: fixed !important;
    z-index: 100 !important;
    inset: 0 0 auto 0;
    height: 70px !important;
    padding: 18px 22px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    background: rgba(17, 17, 18, .94) !important;
    mix-blend-mode: normal !important;
  }

  .site-header nav,
  .site-header p {
    display: none !important;
  }

  .site-header .brand {
    position: static !important;
    font-size: 24px !important;
    color: var(--ink) !important;
  }

  .mobile-menu-toggle {
    display: grid !important;
    grid-template-rows: repeat(3, 2px);
    align-content: space-between;
    width: 36px;
    height: 30px;
    padding: 5px 0;
    border: 0;
    background: transparent;
    cursor: pointer;
  }

  .mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--ink);
    transition: transform .25s ease, opacity .2s ease;
  }

  .mobile-menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(8px) rotate(45deg); }
  .mobile-menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .mobile-menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-8px) rotate(-45deg); }

  .mobile-menu-backdrop {
    display: block;
    position: fixed;
    z-index: 90;
    inset: 0;
    background: rgba(0, 0, 0, .58);
    opacity: 0;
    pointer-events: none;
    transition: opacity .28s ease;
  }

  .mobile-menu-backdrop.open {
    opacity: 1;
    pointer-events: auto;
  }

  .mobile-menu {
    display: block;
    position: fixed;
    z-index: 95;
    inset: 0 0 0 auto;
    width: min(84vw, 380px);
    padding: 104px 30px 34px;
    background: var(--black);
    color: var(--ink);
    transform: translateX(105%);
    transition: transform .34s cubic-bezier(.2, .8, .2, 1);
  }

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

  .mobile-menu p {
    margin: 0 0 2rem;
    color: var(--acid);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
  }

  .mobile-menu a {
    display: block;
    padding: .56rem 0;
    color: var(--ink);
    font-size: clamp(34px, 10vw, 54px);
    font-weight: 700;
    letter-spacing: -.055em;
    line-height: .98;
    text-decoration: none;
  }

  /* The work heading starts below the fixed header instead of colliding with it. */
  .work-intro {
    padding-top: calc(70px + 7vh) !important;
  }
}