/* Wspólny nagłówek całej witryny: strona główna (PL/EN/DE/UA), KSeF, panel, blog, podstrony.
   Jedyne źródło stylów menu — własne kolory, niezależne od arkusza strony, żeby header wyglądał wszędzie tak samo.
   Na stronach KSeF pod <nav> siedzi pasek sekcji (.k-subnav, style w ksef/ksef.css). */
.sh {
  --sh-bg: #ece7db; --sh-ink: #171c15; --sh-soft: #3b4438; --sh-muted: #5b6557;
  --sh-line: #cfc8b3; --sh-line2: #bdb59e; --sh-acc: #0a7f49; --sh-acc-h: #0f5c3d; --sh-acc-ink: #f5fbf6;
  position: sticky; top: env(safe-area-inset-top, 0px); z-index: 30;
  margin-inline: -20px; padding-inline: 0;
  background: color-mix(in srgb, var(--sh-bg) 94%, transparent);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--sh-line);
  color: var(--sh-ink); font-family: "IBM Plex Sans", system-ui, sans-serif;
}
body.home .sh { margin-inline: 0; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .sh { --sh-bg: #10140e; --sh-ink: #eef3e8; --sh-soft: #c4cebd; --sh-muted: #8b9a85; --sh-line: #2c3527; --sh-line2: #3d4a37; --sh-acc: #3ddc97; --sh-acc-h: #6ce8b0; --sh-acc-ink: #0a140f; }
}
:root[data-theme="dark"] .sh { --sh-bg: #10140e; --sh-ink: #eef3e8; --sh-soft: #c4cebd; --sh-muted: #8b9a85; --sh-line: #2c3527; --sh-line2: #3d4a37; --sh-acc: #3ddc97; --sh-acc-h: #6ce8b0; --sh-acc-ink: #0a140f; }

.sh .sh-in { box-sizing: border-box; max-width: 1200px; margin: 0 auto; padding: 12px 24px; min-height: 72px; display: flex; align-items: center; gap: 28px; flex-wrap: nowrap; }
@media (min-width: 1600px) { .sh .sh-in { max-width: 1360px; } }
.sh .brand { display: flex; align-items: baseline; gap: 8px; flex: 0 0 auto; font-family: "Bricolage Grotesque", sans-serif; font-weight: 800; font-size: 22px; line-height: 1.2; letter-spacing: -0.02em; color: var(--sh-ink); text-decoration: none; }
.sh .brand .dot { color: var(--sh-acc); }
.sh .nav-links { display: flex; flex: 1 1 auto; min-width: 0; gap: 24px; flex-wrap: nowrap; white-space: nowrap; font-size: 15px; line-height: 1.5; color: var(--sh-soft); }
.sh .nav-links a { color: var(--sh-soft); text-decoration: none; }
.sh .nav-links a:hover { color: var(--sh-acc); }
.sh .nav-links a[aria-current] { color: var(--sh-ink); font-weight: 600; text-decoration: underline; text-decoration-color: var(--sh-acc); text-decoration-thickness: 2px; text-underline-offset: 6px; }
.sh .nav-right { display: flex; align-items: center; gap: 14px; flex: 0 0 auto; flex-wrap: nowrap; margin-left: auto; }
/* przełącznik języków: zwinięty do „🌐 PL ▾”, lista rozwija się pod spodem (<details>, działa bez JS) */
.sh .lang-dd { position: relative; }
.sh .lang-dd > summary { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 0 10px; border: 1px solid var(--sh-line); border-radius: 10px; color: var(--sh-soft); font: 600 13px/1 "IBM Plex Mono", monospace; letter-spacing: 0.04em; cursor: pointer; list-style: none; user-select: none; }
.sh .lang-dd > summary::-webkit-details-marker { display: none; }
.sh .lang-dd > summary:hover, .sh .lang-dd[open] > summary { border-color: var(--sh-acc); color: var(--sh-acc); }
.sh .lang-dd .lang-caret { transition: transform 0.15s; }
.sh .lang-dd[open] .lang-caret { transform: rotate(180deg); }
.sh .lang-dd .lang { position: absolute; top: calc(100% + 6px); right: 0; z-index: 40; display: flex; flex-direction: column; min-width: 120px; padding: 6px; background: var(--sh-bg); border: 1px solid var(--sh-line); border-radius: 10px; box-shadow: 0 10px 28px rgba(0, 0, 0, 0.14); font-family: "IBM Plex Mono", monospace; font-size: 13px; line-height: 1.2; }
.sh .lang-dd .lang a { padding: 10px 12px; border-radius: 6px; color: var(--sh-soft); text-decoration: none; text-transform: uppercase; letter-spacing: 0.04em; }
.sh .lang-dd .lang a:hover { background: color-mix(in srgb, var(--sh-acc) 10%, transparent); color: var(--sh-acc); }
.sh .lang-dd .lang a[aria-current="true"] { background: var(--sh-acc); color: var(--sh-acc-ink); }
.sh .nav-cta { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 22px; border: 1px solid var(--sh-acc); border-radius: 10px; background: var(--sh-acc); color: var(--sh-acc-ink); font: 600 15px/1.2 "IBM Plex Sans", system-ui, sans-serif; white-space: nowrap; text-decoration: none; filter: none; box-shadow: none; }
.sh .nav-cta:hover { background: var(--sh-acc-h); border-color: var(--sh-acc-h); color: var(--sh-acc-ink); }
.sh .nav-burger { display: none; }

/* węższy laptop: ciaśniej, ale nadal w jednym rzędzie */
@media (max-width: 1250px) {
  .sh .sh-in { gap: 20px; }
  .sh .nav-links { gap: 16px; font-size: 14.5px; }
  .sh .nav-right { gap: 10px; }
  .sh .nav-cta { padding: 0 16px; }
}

/* tablet i telefon: logo + języki + przycisk „Menu” (nav.js), lista sekcji rozwijana pod spodem */
@media (max-width: 1100px) {
  .sh .sh-in { flex-wrap: wrap; gap: 10px 14px; min-height: 68px; }
  .sh .nav-links { order: 3; flex-basis: 100%; overflow-x: auto; gap: 20px; scrollbar-width: none; padding-bottom: 2px; }
  .sh .nav-links::-webkit-scrollbar { display: none; }
  .sh .nav-burger { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 0 12px; border: 1px solid var(--sh-line2); border-radius: 10px; background: transparent; color: var(--sh-ink); font: 600 15px/1 "IBM Plex Sans", system-ui, sans-serif; cursor: pointer; }
  .sh .nav-burger[aria-expanded="true"] { border-color: var(--sh-acc); color: var(--sh-acc); }
  .js-nav .sh .nav-links { display: none; }
  .js-nav .sh .nav-open .nav-links { display: flex; flex-direction: column; gap: 0; overflow: visible; white-space: normal; padding: 4px 0 8px; max-height: calc(100vh - 90px); overflow-y: auto; }
  .js-nav .sh .nav-open .nav-links a { padding: 12px 4px; border-top: 1px solid var(--sh-line); font-size: 17px; }
}
@media (max-width: 640px) { .sh .nav-cta { display: none; } }
@media (max-width: 560px) { .sh .sh-in { padding-inline: 16px; } }
@media (max-width: 400px) { .sh .sh-in { gap: 10px; } }
.sh .lang-dd .lang a { display: flex; align-items: baseline; gap: 10px; text-transform: none; letter-spacing: 0; font-family: "IBM Plex Sans", system-ui, sans-serif; font-size: 14px; white-space: nowrap; }
.sh .lang-dd .lang a b { min-width: 22px; font: 600 12px/1 "IBM Plex Mono", monospace; letter-spacing: 0.04em; }
.sh .lang-dd .lang { min-width: 160px; }