/* Mobilna nawigacja: osobny panel zaprojektowany pod dotyk, nie skurczony desktop. */
.mobile-nav-head { display: none; }

@media (max-width: 1120px) {
  body.nav-menu-open { overflow: hidden; }
  body.nav-menu-open::before {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 44;
    background:
      radial-gradient(circle at 80% 4%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 24rem),
      color-mix(in srgb, var(--bg-sunken) 78%, transparent);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
  }

  .app-bar > :not(.app-nav) { position: relative; z-index: 2; }

  .nav-toggle[aria-expanded="true"] {
    border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
    background: color-mix(in srgb, var(--accent) 11%, var(--bg-raised));
    color: var(--accent-strong);
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle-icon > span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] .nav-toggle-icon > span:nth-child(2) { opacity: 0; transform: scaleX(0); }
  .nav-toggle[aria-expanded="true"] .nav-toggle-icon > span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }
  .nav-toggle-icon > span { transition: transform .2s var(--ease), opacity .15s var(--ease); }

  .app-nav {
    position: fixed;
    z-index: 55;
    top: calc(72px + env(safe-area-inset-top, 0px));
    right: max(12px, env(safe-area-inset-right, 0px));
    bottom: max(12px, env(safe-area-inset-bottom, 0px));
    left: auto;
    width: min(560px, calc(100vw - 24px));
    height: calc(100dvh - 84px - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
    max-width: none;
    max-height: none;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-content: start;
    gap: 10px;
    margin: 0;
    padding: clamp(16px, 3vw, 24px);
    overflow-x: hidden;
    overflow-y: auto;
    overscroll-behavior: contain;
    scrollbar-width: thin;
    border: 1px solid color-mix(in srgb, var(--accent) 24%, var(--border));
    border-radius: 18px;
    background:
      linear-gradient(145deg, color-mix(in srgb, var(--accent) 5%, transparent), transparent 34%),
      color-mix(in srgb, var(--bg-raised) 97%, var(--bg-sunken));
    box-shadow: 0 28px 90px color-mix(in srgb, var(--bg-sunken) 82%, transparent), inset 0 1px 0 color-mix(in srgb, var(--text) 5%, transparent);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    /* Samo skalowanie od gornego prawego rogu. Przesuniecie w prawo zostawialo
       ukryty panel poza krawedzia dokumentu (poziomy pasek przewijania), a
       przesuniecie w gore podnosilo panel ponad gorna krawedz w trakcie
       animacji. Skala od tego naroznika nie rusza ani gory, ani prawej. */
    transform: scale(.985);
    transform-origin: top right;
    transition: opacity .18s var(--ease), transform .22s var(--ease), visibility .22s;
  }
  .app-nav.is-open { opacity: 1; visibility: visible; pointer-events: auto; transform: scale(1); }

  .mobile-nav-head {
    display: flex;
    grid-column: 1 / -1;
    align-items: end;
    justify-content: space-between;
    gap: 18px;
    margin: 0 2px 5px;
    padding: 2px 2px 16px;
    border-bottom: 1px solid var(--border);
  }
  .mobile-nav-head span {
    color: var(--text);
    font-size: clamp(22px, 5vw, 28px);
    font-weight: 760;
    line-height: 1;
    letter-spacing: -.035em;
  }
  .mobile-nav-head small {
    max-width: 24ch;
    color: var(--text-dim);
    font-size: 12px;
    line-height: 1.35;
    text-align: right;
  }

  .app-nav > .nav-group:not(.nav-group--more) {
    display: grid;
    grid-column: 1 / -1;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    margin: 0;
    padding: 12px;
    border: 1px solid color-mix(in srgb, var(--border) 82%, transparent);
    border-radius: 12px;
    background: color-mix(in srgb, var(--bg-sunken) 52%, transparent);
  }
  .app-nav > .nav-group + .nav-group { padding-top: 12px; }
  .app-nav .nav-group-label {
    display: flex;
    grid-column: 1 / -1;
    align-items: center;
    gap: 9px;
    margin: 0 2px 4px;
    color: var(--accent-strong);
    font: 700 10px/1 var(--font-mono);
    letter-spacing: .13em;
    text-transform: uppercase;
  }
  .app-nav .nav-group-label::before {
    content: "";
    width: 18px;
    height: 1px;
    background: var(--accent);
  }

  .app-nav .nav-btn,
  .app-nav .nav-link {
    position: relative;
    justify-content: flex-start;
    gap: 10px;
    width: 100%;
    min-width: 0;
    min-height: 54px;
    margin: 0;
    padding: 8px 11px;
    border: 1px solid transparent;
    border-radius: 8px;
    background: transparent;
    color: var(--text-dim);
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 650;
    letter-spacing: -.01em;
    line-height: 1.15;
    text-align: left;
    text-transform: none;
    white-space: normal;
    transition: color .16s var(--ease), background .16s var(--ease), border-color .16s var(--ease), transform .16s var(--ease);
  }
  .app-nav .nav-btn::before,
  .app-nav .nav-link::before {
    content: var(--nav-glyph, "•") / "";
    display: grid;
    flex: 0 0 34px;
    width: 34px;
    height: 34px;
    place-items: center;
    border: 1px solid color-mix(in srgb, var(--accent) 22%, var(--border));
    border-radius: 7px;
    background: color-mix(in srgb, var(--accent) 7%, var(--bg-raised));
    color: var(--accent-strong);
    font: 18px/1 var(--font-sans);
    transition: background .16s var(--ease), border-color .16s var(--ease), transform .16s var(--ease);
  }
  .app-nav .nav-btn::after {
    content: "›" / "";
    margin-left: auto;
    color: color-mix(in srgb, var(--text-dim) 65%, transparent);
    font: 20px/1 var(--font-sans);
  }
  .app-nav .nav-btn:hover:not(:disabled),
  .app-nav .nav-link:hover {
    border-color: color-mix(in srgb, var(--accent) 24%, var(--border));
    background: color-mix(in srgb, var(--accent) 8%, var(--bg-raised));
    color: var(--text);
    transform: translateY(-1px);
  }
  .app-nav .nav-btn:active,
  .app-nav .nav-link:active { transform: scale(.985); }
  .app-nav .nav-btn:focus-visible,
  .app-nav .nav-link:focus-visible {
    outline: 2px solid var(--accent-strong);
    outline-offset: 2px;
  }
  .app-nav .nav-btn.is-active {
    border-color: color-mix(in srgb, var(--accent) 48%, var(--border));
    background: color-mix(in srgb, var(--accent) 14%, var(--bg-raised));
    box-shadow: none;
    color: var(--text);
  }
  .app-nav .nav-btn.is-active::before {
    border-color: var(--accent);
    background: var(--accent);
    color: var(--accent-contrast);
  }

  .app-nav [data-view="silnik"] { --nav-glyph: "▶"; }
  .app-nav [data-view="boty"] { --nav-glyph: "♟"; }
  .app-nav [data-view="dashboard"] { --nav-glyph: "♚"; }
  .app-nav .nav-link--masters { --nav-glyph: "♛"; }
  .app-nav .nav-link--support { --nav-glyph: "♥"; }

  /* Unicode escapes stay stable when deployment tools normalize encodings. */
  .app-nav .nav-btn::before,
  .app-nav .nav-link::before { content: var(--nav-glyph, "\2022") / ""; }
  .app-nav .nav-btn::after { content: "\203A" / ""; }
  .app-nav [data-view="silnik"] { --nav-glyph: "\25B6"; }
  .app-nav [data-view="boty"] { --nav-glyph: "\265E"; }
  .app-nav [data-view="dashboard"] { --nav-glyph: "\265A"; }
  .app-nav .nav-link--masters { --nav-glyph: "\265B"; }
  .app-nav .nav-link--support { --nav-glyph: "\2661"; }

  .app-nav > .nav-link {
    min-height: 58px;
    border-color: color-mix(in srgb, var(--accent-gold) 28%, var(--border));
    background: color-mix(in srgb, var(--accent-gold) 5%, var(--bg-sunken));
    color: var(--text);
  }
  .app-nav > .nav-link span { display: none; }
  .app-nav > .nav-profile {
    grid-column: 1 / -1;
    min-height: 62px;
    margin: 0;
    padding: 10px 13px;
    border: 1px solid color-mix(in srgb, var(--accent) 42%, var(--border));
    border-radius: 10px;
    background: color-mix(in srgb, var(--accent) 10%, var(--bg-raised));
  }
  .app-nav > .nav-profile::before { flex-basis: 38px; width: 38px; height: 38px; }
  .app-nav .nav-group--more { display: none; }
}

@media (max-width: 520px) {
  .app-nav {
    top: calc(61px + env(safe-area-inset-top, 0px));
    right: 7px;
    bottom: 0;
    left: 7px;
    width: auto;
    height: calc(100dvh - 61px - env(safe-area-inset-top, 0px));
    padding: 16px 12px max(18px, env(safe-area-inset-bottom, 0px));
    border-bottom: 0;
    border-radius: 16px 16px 0 0;
  }
  .mobile-nav-head small { display: none; }
  .app-nav > .nav-group:not(.nav-group--more) { padding: 10px; }
  .app-nav .nav-btn,
  .app-nav .nav-link { min-height: 50px; padding-inline: 8px; font-size: 12.5px; }
  .app-nav .nav-btn::before,
  .app-nav .nav-link::before { flex-basis: 31px; width: 31px; height: 31px; font-size: 16px; }
}

@media (max-width: 360px) {
  .app-nav > .nav-group:not(.nav-group--more) { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  .app-nav,
  .nav-toggle-icon > span { transition: none; }
}