/* Wspólna nawigacja avenit.pl (strona główna, EN, podstrony, podręcznik).
   Markup wstawia deploy/www-src/apply-nav.py między <!-- nav:start --> i <!-- nav:end -->.
   Klasy z prefiksem .snav — bez kolizji z CSS strony głównej. */
.snav {
  --snav-h: 72px;
  position: sticky; top: 0; z-index: 100;
  background: rgba(246, 244, 238, .94);
  -webkit-backdrop-filter: saturate(1.4) blur(12px); backdrop-filter: saturate(1.4) blur(12px);
  transition: box-shadow .3s;
  font-family: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
}
.snav.is-scrolled { box-shadow: 0 1px 0 rgba(42, 35, 18, .13); }
.snav-in {
  width: min(1280px, calc(100% - 2 * clamp(16px, 4.4vw, 64px))); margin: 0 auto;
  height: var(--snav-h); display: flex; align-items: center; gap: 16px;
}
.snav a, .snav button { -webkit-tap-highlight-color: transparent; }
.snav button { font-family: inherit; background: none; border: 0; cursor: pointer; color: inherit; }
.snav :focus-visible { outline: 2px solid #2A2312; outline-offset: 3px; border-radius: 10px; }

/* znak */
.snav-logo { display: inline-flex; align-items: center; gap: 16px; text-decoration: none; color: #2A2312; flex: none; }
.snav-mark { display: block; width: 100px; height: 27px; background: currentColor;
  -webkit-mask: url("/assets/brand/logo.png") left center / contain no-repeat; mask: url("/assets/brand/logo.png") left center / contain no-repeat; }
.snav-claim { padding-left: 16px; border-left: 1px solid rgba(42, 35, 18, .13); font-size: 11.5px; font-weight: 600; letter-spacing: .16em;
  text-transform: uppercase; color: #6B6557; line-height: 26px; white-space: nowrap; }

/* linki główne */
.snav-menu { margin-left: auto; display: flex; align-items: center; }
.snav-list { list-style: none; display: flex; align-items: center; gap: 2px; margin: 0; padding: 0; }
.snav-list > li { position: relative; }
.snav .snav-link { display: inline-flex; align-items: center; gap: 6px; height: 40px; padding: 0 14px; border-radius: 999px; white-space: nowrap;
  text-decoration: none; font-size: 15px; font-weight: 600; color: #3F3B33; transition: background-color .2s, color .2s; }
.snav-link:hover, .snav-dd.is-open > .snav-link { background: #ECE8DE; color: #2A2312; }
.snav-link[aria-current="page"] { color: #2A2312; box-shadow: inset 0 -2px 0 #FFBE0B; border-radius: 0; }
.snav-chev { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform .25s; }
.snav-dd.is-open .snav-chev { transform: rotate(180deg); }

/* panel „Funkcje” */
.snav-panel { position: absolute; top: calc(100% + 10px); left: 50%; translate: -50% 0; width: 620px;
  display: grid; grid-template-columns: 1.15fr 1fr; gap: 6px; padding: 10px; border-radius: 22px; background: #FFFFFF;
  box-shadow: 0 1px 2px rgba(42, 35, 18, .08), 0 28px 60px -24px rgba(42, 35, 18, .4);
  opacity: 0; visibility: hidden; transform: translateY(-6px); transition: opacity .2s, transform .25s cubic-bezier(.16, 1, .3, 1), visibility .2s; }
.snav-dd.is-open .snav-panel { opacity: 1; visibility: visible; transform: none; }
.snav-col { display: flex; flex-direction: column; padding: 6px; }
.snav-col + .snav-col { background: #F6F4EE; border-radius: 16px; }
.snav-cap { margin: 4px 10px 6px; font-size: 11.5px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: #8A6606; }
.snav-panel a { display: block; padding: 10px; border-radius: 12px; text-decoration: none; transition: background-color .2s; }
.snav-panel a:hover { background: #ECE8DE; }
.snav-col + .snav-col a:hover { background: #ECE8DE; }
.snav-panel strong { display: block; font-size: 15px; font-weight: 700; color: #2A2312; line-height: 1.3; }
.snav-panel span { display: block; margin-top: 2px; font-size: 13.5px; line-height: 1.4; color: #6B6557; }

/* prawa strona */
.snav-side { display: flex; align-items: center; gap: 4px; flex: none; }
.snav-lang, .snav-login { display: inline-flex; align-items: center; height: 40px; padding: 0 12px; border-radius: 999px; white-space: nowrap;
  text-decoration: none; font-size: 15px; font-weight: 600; color: #3F3B33; transition: background-color .2s, color .2s; }
.snav-lang { font-size: 13px; letter-spacing: .08em; }
.snav-lang:hover, .snav-login:hover { background: #ECE8DE; color: #2A2312; }
.snav-sep { width: 1px; height: 22px; background: rgba(42, 35, 18, .13); margin: 0 6px; }
.snav-cta { display: inline-flex; align-items: center; height: 42px; padding: 0 20px; margin-left: 6px; border-radius: 999px; white-space: nowrap;
  text-decoration: none; font-size: 15px; font-weight: 700; color: #2A2312; background: #FFBE0B;
  box-shadow: 0 1px 1px rgba(42, 35, 18, .1), 0 10px 22px -16px rgba(42, 35, 18, .5); transition: transform .3s cubic-bezier(.16, 1, .3, 1), background-color .2s; }
.snav-cta:hover { background: #FFC82E; transform: translateY(-2px); }

/* menu mobilne */
.snav-burger { display: none; width: 44px; height: 44px; border-radius: 50%; place-items: center; color: #2A2312; margin-left: 2px; }
.snav-burger:hover { background: #ECE8DE; }
.snav-burger i { position: relative; display: block; width: 20px; height: 2px; border-radius: 2px; background: currentColor; transition: background-color .2s; }
.snav-burger i::before, .snav-burger i::after { content: ""; position: absolute; left: 0; width: 20px; height: 2px; border-radius: 2px; background: currentColor; transition: transform .3s cubic-bezier(.16, 1, .3, 1); }
.snav-burger i::before { transform: translateY(-6px); }
.snav-burger i::after { transform: translateY(6px); }
.snav.is-menu .snav-burger i { background: transparent; }
.snav.is-menu .snav-burger i::before { transform: rotate(45deg); }
.snav.is-menu .snav-burger i::after { transform: rotate(-45deg); }
.snav-extra { display: none; }

@media (max-width: 1279px) { .snav-claim { display: none; } }
@media (max-width: 1099px) {
  .snav-burger { display: grid; }
  .snav-side { margin-left: auto; }
  .snav-menu { position: fixed; inset: var(--snav-h) 0 0 0; display: none; flex-direction: column; align-items: stretch; overflow-y: auto;
    background: #F6F4EE; padding: 8px clamp(16px, 4.4vw, 64px) 32px; }
  .snav.is-menu .snav-menu { display: flex; }
  /* backdrop-filter tworzy blok zawierający dla position:fixed — przy otwartym menu go wyłączamy */
  .snav.is-menu { box-shadow: 0 1px 0 rgba(42, 35, 18, .13); background: #F6F4EE; -webkit-backdrop-filter: none; backdrop-filter: none; }
  .snav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .snav-list > li { border-bottom: 1px solid rgba(42, 35, 18, .13); }
  .snav .snav-link { height: auto; width: 100%; justify-content: space-between; padding: 16px 0; border-radius: 0; font-size: 22px; font-weight: 700; color: #2A2312; }
  .snav-link:hover, .snav-dd.is-open > .snav-link { background: none; }
  .snav-link[aria-current="page"] { box-shadow: none; }
  .snav-link[aria-current="page"]::after { content: ""; width: 8px; height: 8px; border-radius: 50%; background: #FFBE0B; }
  .snav-panel { position: static; translate: none; width: auto; transform: none; opacity: 1; visibility: visible; box-shadow: none; background: none;
    padding: 0 0 12px; display: none; grid-template-columns: 1fr; }
  .snav-dd.is-open .snav-panel { display: grid; }
  .snav-col { padding: 0; }
  .snav-cap { margin: 10px 0 2px; }
  .snav-col + .snav-col { background: none; }
  .snav-panel a { padding: 10px 0; }
  .snav-panel a:hover, .snav-col + .snav-col a:hover { background: none; }
  .snav-extra { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
  .snav-extra a { display: inline-flex; align-items: center; height: 44px; padding: 0 18px; border-radius: 999px; background: #FFFFFF;
    text-decoration: none; font-size: 15px; font-weight: 700; color: #2A2312; box-shadow: 0 1px 2px rgba(42, 35, 18, .08); }
}
@media (max-width: 640px) {
  .snav-lang, .snav-login, .snav-sep { display: none; }
  .snav-cta { height: 40px; padding: 0 16px; font-size: 14.5px; }
}
@media (max-width: 380px) { .snav-mark { width: 88px; } .snav-cta { padding: 0 13px; } }
@media (prefers-reduced-motion: reduce) { .snav *, .snav { transition-duration: .01ms !important; } }
html.snav-lock, html.snav-lock body { overflow: hidden; }