/* Nawigacja na telefonach i tabletach */
@media (max-width: 980px) {
  .nav {
    position: relative;
    height: 72px;
  }

  .brand,
  .menu-toggle {
    position: relative;
    z-index: 3;
  }

  .menu-toggle {
    position: fixed;
    top: 12px;
    right: max(16px, env(safe-area-inset-right));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin-left: auto;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 2px;
    background: rgba(255, 255, 255, .04);
    color: #fff;
    cursor: pointer;
    transition: border-color .2s ease, background .2s ease;
  }

  .menu-toggle:hover,
  .menu-toggle:focus-visible {
    border-color: #b64a62;
    background: rgba(155, 41, 66, .22);
    outline: 0;
  }

  .menu-toggle-lines,
  .menu-toggle-lines::before,
  .menu-toggle-lines::after {
    display: block;
    width: 21px;
    height: 2px;
    border-radius: 2px;
    background: #fff;
    transition: transform .22s ease, opacity .18s ease;
  }

  .menu-toggle-lines {
    position: relative;
  }

  .menu-toggle-lines::before,
  .menu-toggle-lines::after {
    position: absolute;
    left: 0;
    content: '';
  }

  .menu-toggle-lines::before { top: -7px; }
  .menu-toggle-lines::after { top: 7px; }
  .menu-toggle.is-open .menu-toggle-lines { background: transparent; }
  .menu-toggle.is-open .menu-toggle-lines::before { transform: translateY(7px) rotate(45deg); }
  .menu-toggle.is-open .menu-toggle-lines::after { transform: translateY(-7px) rotate(-45deg); }

  .main-nav.open {
    position: fixed;
    inset: 0;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 124px 8vw 46px;
    overflow-y: auto;
    background:
      linear-gradient(135deg, rgba(9, 20, 32, .98), rgba(13, 35, 54, .98)),
      var(--navy);
  }

  .main-nav.open::before {
    position: absolute;
    top: 92px;
    left: 8vw;
    content: 'NAWIGACJA';
    color: #d9a1ae;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .22em;
  }

  .main-nav.open a {
    display: flex;
    align-items: center;
    min-height: 52px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255, 255, 255, .12);
    color: #f8fafc;
    font-family: 'Playfair Display', serif;
    font-size: clamp(24px, 4.5vw, 34px);
    line-height: 1.1;
    transition: color .18s ease, padding-left .18s ease;
  }

  .main-nav.open a::after {
    margin-left: auto;
    color: #bd546b;
    content: '→';
    font-family: Inter, sans-serif;
    font-size: 19px;
  }

  .main-nav.open a:hover,
  .main-nav.open a:focus-visible {
    padding-left: 10px;
    color: #e7b2bc;
    outline: 0;
  }

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

@media (max-width: 640px) {
  .nav { height: 68px; }
  .menu-toggle { top: 10px; right: max(14px, env(safe-area-inset-right)); }
  .main-nav.open { padding: 112px 7vw 34px; }
  .main-nav.open::before { top: 80px; left: 7vw; }
  .main-nav.open a { min-height: 47px; font-size: 25px; }
}