/* =====================================================================
   Wspólna nawigacja Grupy AK-BUD (includes/nav.php) + motyw jasny/ciemny
   Kolor akcentu zależy od działu (data-dzial), tło/tekst od motywu (data-theme)
   ===================================================================== */

:root {
  --sn-h: 72px;
  --sn-h-scrolled: 62px;
  --sn-bg: rgba(255, 255, 255, .86);
  --sn-bg-solid: #ffffff;
  --sn-text: #111827;
  --sn-muted: #6b7280;
  --sn-border: rgba(17, 24, 39, .08);
  --sn-surface: #ffffff;
  --sn-surface-2: #f3f4f6;
  --sn-shadow: 0 18px 40px -18px rgba(17, 24, 39, .28);
  --sn-accent: #1c64f2;
  --sn-on-accent: #ffffff;
  --sn-font: 'Plus Jakarta Sans', 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}
[data-theme="dark"] {
  --sn-bg: rgba(13, 15, 19, .82);
  --sn-bg-solid: #0d0f13;
  --sn-text: #f3f4f6;
  --sn-muted: #9ca3af;
  --sn-border: rgba(255, 255, 255, .09);
  --sn-surface: #15181e;
  --sn-surface-2: #1d2129;
  --sn-shadow: 0 18px 40px -18px rgba(0, 0, 0, .7);
  --sn-accent: #5abedb;
  --sn-on-accent: #0b1220;
}

/* akcenty działów */
.sn[data-dzial="fundacja"]    { --sn-accent: #1f9a83; --sn-on-accent: #fff; --sn-bg: rgba(255, 249, 244, .88); --sn-bg-solid: #fff9f4; }
.sn[data-dzial="pracownia"]   { --sn-accent: #1f86d1; }
.sn[data-dzial="budownictwo"] { --sn-accent: #9a6b48; --sn-on-accent: #fff; --sn-bg: rgba(250, 246, 242, .88); --sn-bg-solid: #faf6f2; }
[data-theme="dark"] .sn[data-dzial="fundacja"]    { --sn-accent: #4cc7ad; --sn-on-accent: #062a24; --sn-bg: rgba(20, 17, 15, .84); --sn-bg-solid: #14110f; --sn-surface: #1c1916; --sn-surface-2: #25211d; }
[data-theme="dark"] .sn[data-dzial="pracownia"]   { --sn-accent: #63bcff; --sn-on-accent: #061626; }
[data-theme="dark"] .sn[data-dzial="budownictwo"] { --sn-accent: #e2c2a6; --sn-on-accent: #1a1410; --sn-bg: rgba(12, 11, 10, .84); --sn-bg-solid: #0c0b0a; --sn-surface: #191614; --sn-surface-2: #221e1b; --sn-border: rgba(226, 194, 166, .14); }

/* elementy zależne od motywu, np. logotypy: .th-dark (na ciemnym tle) / .th-light (na jasnym) */
[data-theme="dark"] .th-light, :root:not([data-theme="dark"]) .th-dark { display: none !important; }

/* ---------- pasek postępu przewijania ---------- */
.sn-progress { position: fixed; z-index: 5; inset: 0 0 auto 0; height: 3px; pointer-events: none; }
.sn-progress span { display: block; height: 100%; width: 100%; transform-origin: 0 50%; transform: scaleX(0); background: var(--sn-accent, #1c64f2); }

/* ---------- pasek nawigacji ---------- */
.sn {
  position: fixed; z-index: 1000; inset: 0 0 auto 0;
  font-family: var(--sn-font); color: var(--sn-text);
  -webkit-font-smoothing: antialiased;
}
.sn *, .sn *::before, .sn *::after { box-sizing: border-box; }
.sn::before { /* tło paska (osobna warstwa – panel mobilny ma własne) */
  content: ""; position: absolute; inset: 0 0 auto 0; height: var(--sn-h);
  background: var(--sn-bg); border-bottom: 1px solid var(--sn-border);
  backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px);
  transition: height .3s ease, box-shadow .3s ease, background-color .3s ease;
}
.sn.is-scrolled::before { height: var(--sn-h-scrolled); box-shadow: var(--sn-shadow); }
.sn-bar {
  position: relative; z-index: 3;
  max-width: 1240px; margin: 0 auto; padding: 0 24px;
  height: var(--sn-h); display: flex; align-items: center; gap: 28px;
  transition: height .3s ease;
}
.sn.is-scrolled .sn-bar { height: var(--sn-h-scrolled); }

/* logo – wersja jasna/ciemna */
.sn .sn-logo { min-width: 0; flex-shrink: 1; display: flex; align-items: center; height: 44px; text-decoration: none; }
.sn-logo img { height: 100%; width: auto; max-width: 170px; display: block; object-fit: contain; transition: transform .3s ease; }
.sn-logo-square img { height: 46px; }
.sn.is-scrolled .sn-logo img { transform: scale(.92); transform-origin: left center; }
.sn-logo-dark, [data-theme="dark"] .sn-logo-light { display: none !important; }
[data-theme="dark"] .sn-logo-dark { display: block !important; }

/* linki sekcji */
.sn-links { display: flex; align-items: center; gap: 4px; margin-right: auto; }
.sn .sn-links a {
  position: relative; padding: 8px 12px; border-radius: 10px;
  color: var(--sn-muted); text-decoration: none; font-size: .95rem; font-weight: 500; white-space: nowrap;
  transition: color .2s, background-color .2s;
}
.sn .sn-links a::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 3px; height: 2px; border-radius: 2px;
  background: var(--sn-accent); transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.sn .sn-links a:hover { color: var(--sn-text); background: var(--sn-surface-2); }
.sn .sn-links a.is-active { color: var(--sn-text); }
.sn .sn-links a.is-active::after { transform: scaleX(1); }

/* akcje po prawej */
.sn-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; flex-shrink: 0; }
.sn-ico { width: 18px; height: 18px; flex-shrink: 0; display: block; }

.sn-group { position: relative; }
.sn-group-btn, .sn-theme, .sn-burger {
  font: inherit; color: var(--sn-text); background: transparent; cursor: pointer;
  border: 1px solid var(--sn-border); border-radius: 12px; height: 42px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: background-color .2s, border-color .2s, color .2s;
}
.sn-group-btn { padding: 0 14px; font-size: .92rem; font-weight: 600; white-space: nowrap; }
.sn-group-btn .sn-ico { width: 16px; height: 16px; transition: transform .3s ease; }
.sn-group-btn[aria-expanded="true"] .sn-ico { transform: rotate(180deg); }
.sn-group-btn:hover, .sn-theme:hover, .sn-burger:hover { background: var(--sn-surface-2); }
.sn-group-btn:focus-visible, .sn-theme:focus-visible, .sn-burger:focus-visible, .sn a:focus-visible { outline: 2px solid var(--sn-accent); outline-offset: 2px; }

/* przełącznik motywu: księżyc w trybie jasnym, słońce w ciemnym */
.sn-theme { width: 42px; position: relative; overflow: hidden; }
.sn-theme .sn-ico { position: absolute; width: 19px; height: 19px; transition: transform .45s cubic-bezier(.5, -.3, .3, 1.4), opacity .3s; }
.sn-theme .sn-ico-sun  { transform: translateY(26px) rotate(-90deg); opacity: 0; }
.sn-theme .sn-ico-moon { transform: none; opacity: 1; }
[data-theme="dark"] .sn-theme .sn-ico-sun  { transform: none; opacity: 1; color: #fcd34d; }
[data-theme="dark"] .sn-theme .sn-ico-moon { transform: translateY(-26px) rotate(90deg); opacity: 0; }

.sn-cta {
  display: inline-flex; align-items: center; gap: 8px; height: 42px; padding: 0 18px; border-radius: 12px;
  background: var(--sn-accent); color: var(--sn-on-accent) !important; text-decoration: none;
  font-size: .92rem; font-weight: 600; white-space: nowrap;
  transition: filter .2s, transform .2s;
}
.sn-cta .sn-ico { width: 16px; height: 16px; transition: transform .25s; }
.sn-cta:hover { filter: brightness(1.08); }
.sn-cta:hover .sn-ico { transform: translateX(3px); }

/* ---------- mega menu „Grupa AK-BUD” ---------- */
.sn-mega {
  position: absolute; top: calc(100% + 14px); right: -120px; width: min(720px, calc(100vw - 48px));
  display: grid; grid-template-columns: 1fr 210px; gap: 14px; padding: 14px;
  background: var(--sn-surface); border: 1px solid var(--sn-border); border-radius: 20px; box-shadow: var(--sn-shadow);
  opacity: 0; visibility: hidden; transform: translateY(-8px) scale(.98); transform-origin: top right;
  transition: opacity .22s ease, transform .22s ease, visibility 0s .22s;
}
.sn-group.is-open .sn-mega { opacity: 1; visibility: visible; transform: none; transition: opacity .22s ease, transform .22s ease; }
.sn-mega::before { content: ""; position: absolute; top: -16px; left: 0; right: 0; height: 16px; } /* most dla hovera */
.sn-mega-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.sn .sn-mega-card {
  position: relative; display: flex; flex-direction: column; gap: 4px; padding: 14px 16px; border-radius: 14px;
  text-decoration: none; color: var(--sn-text); border: 1px solid transparent;
  transition: background-color .2s, border-color .2s, transform .2s;
}
.sn-mega-card:hover { background: var(--sn-surface-2); transform: translateY(-1px); }
.sn-mega-card.is-current { border-color: var(--sn-border); background: var(--sn-surface-2); }
.sn-mega-logo { height: 36px; display: flex; align-items: center; margin-bottom: 6px; }
.sn-mega-logo img { height: 100%; width: auto; max-width: 120px; object-fit: contain; }
.sn-mega-name { font-weight: 700; font-size: .95rem; }
.sn-mega-desc { color: var(--sn-muted); font-size: .82rem; line-height: 1.4; }
.sn-here {
  position: absolute; top: 12px; right: 12px; font-size: .68rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  padding: 3px 8px; border-radius: 99px; background: var(--sn-accent); color: var(--sn-on-accent);
}
.sn-mega-side { display: flex; flex-direction: column; gap: 6px; padding: 8px; border-radius: 14px; background: var(--sn-surface-2); }
.sn .sn-mega-home, .sn .sn-mega-tel {
  display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 10px;
  color: var(--sn-text); text-decoration: none; font-size: .88rem; font-weight: 600;
}
.sn-mega-home:hover, .sn-mega-tel:hover { background: var(--sn-surface); }
.sn-mega-home .sn-ico, .sn-mega-tel .sn-ico, .sn-mega-addr .sn-ico { color: var(--sn-accent); width: 17px; height: 17px; }
.sn-mega-addr { display: flex; gap: 10px; margin: auto 0 0; padding: 9px 10px; color: var(--sn-muted); font-size: .82rem; line-height: 1.45; }
.sn .sn-mega-tel { background: var(--sn-accent); color: var(--sn-on-accent); }
.sn-mega-tel .sn-ico { color: inherit; }
.sn-mega-tel:hover { background: var(--sn-accent); filter: brightness(1.08); }

/* ---------- burger ---------- */
.sn-burger { display: none; width: 42px; flex-direction: column; gap: 4px; }
.sn-burger span { display: block; width: 18px; height: 2px; border-radius: 2px; background: currentColor; transition: transform .35s cubic-bezier(.6, 0, .2, 1), opacity .2s; }
.sn-burger span:nth-child(2) { width: 12px; align-self: center; margin-left: 6px; }
.sn.is-menu-open .sn-burger span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.sn.is-menu-open .sn-burger span:nth-child(2) { opacity: 0; transform: translateX(8px); }
.sn.is-menu-open .sn-burger span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- panel mobilny (odsłanianie kołem od przycisku menu) ---------- */
.sn-panel {
  position: fixed; inset: 0; z-index: 1; overflow-y: auto; overscroll-behavior: contain;
  padding: calc(var(--sn-h) + 12px) 0 max(32px, env(safe-area-inset-bottom));
  background:
    radial-gradient(120% 60% at 100% 0%, color-mix(in srgb, var(--sn-accent) 16%, transparent) 0%, transparent 60%),
    var(--sn-bg-solid);
  clip-path: circle(0 at calc(100% - 45px) calc(var(--sn-h) / 2));
  visibility: hidden;
  transition: clip-path .55s cubic-bezier(.7, 0, .2, 1), visibility 0s .55s;
}
.sn.is-menu-open .sn-panel { clip-path: circle(150% at calc(100% - 45px) calc(var(--sn-h) / 2)); visibility: visible; transition: clip-path .65s cubic-bezier(.7, 0, .2, 1); }
/* przy otwartym menu pasek ma pełne tło nad panelem – przewijane linki nie wchodzą pod logo i ✕ */
.sn.is-menu-open::before { z-index: 2; height: var(--sn-h); background: var(--sn-bg-solid); box-shadow: 0 10px 24px -18px rgba(0, 0, 0, .35); }
.sn.is-menu-open .sn-bar { height: var(--sn-h); }
.sn.is-menu-open .sn-logo img { transform: none; }
.sn.is-menu-open .sn-progress { opacity: 0; }
.sn-panel-inner { max-width: 640px; margin: 0 auto; padding: 0 22px; }
.sn-panel-label {
  margin: 22px 0 10px; font-size: .72rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; color: var(--sn-muted);
}
.sn-panel-links { list-style: none; margin: 0; padding: 0; }
.sn .sn-panel-links a {
  display: flex; align-items: center; gap: 16px; padding: 14px 4px; border-bottom: 1px solid var(--sn-border);
  color: var(--sn-text); text-decoration: none; font-size: 1.45rem; font-weight: 700; letter-spacing: -.01em;
}
.sn-num { font-size: .8rem; font-weight: 600; color: var(--sn-accent); font-variant-numeric: tabular-nums; min-width: 22px; }
.sn-txt { flex: 1; }
.sn-panel-links .sn-ico { color: var(--sn-muted); transition: transform .25s, color .25s; }
.sn-panel-links a:active .sn-ico, .sn-panel-links a:hover .sn-ico { transform: translateX(4px); color: var(--sn-accent); }
.sn-panel-links a.is-active .sn-txt { color: var(--sn-accent); }

.sn-panel-dzialy { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.sn .sn-tile {
  position: relative; display: flex; flex-direction: column; gap: 10px; padding: 14px; min-height: 104px;
  border-radius: 16px; background: var(--sn-surface); border: 1px solid var(--sn-border);
  color: var(--sn-text); text-decoration: none; font-weight: 600; font-size: .9rem;
}
.sn-tile.is-current { border-color: var(--sn-accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--sn-accent) 18%, transparent); }
.sn-tile-logo { height: 34px; display: flex; align-items: center; }
.sn-tile-logo img { height: 100%; width: auto; max-width: 92px; object-fit: contain; }
.sn-tile.is-current .sn-tile-logo img { max-width: 78px; }
.sn-tile .sn-here { top: 10px; right: 10px; font-size: .6rem; padding: 2px 7px; }
.sn-panel-contact { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 22px; }
.sn .sn-quick {
  display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 14px 6px; border-radius: 14px;
  background: var(--sn-surface-2); color: var(--sn-text); text-decoration: none; font-size: .85rem; font-weight: 600;
}
.sn .sn-quick:first-child { background: var(--sn-accent); color: var(--sn-on-accent); }
.sn-quick .sn-ico { width: 20px; height: 20px; }
.sn-panel-foot { margin: 20px 0 0; text-align: center; color: var(--sn-muted); font-size: .82rem; }

/* animacja kaskadowa elementów panelu */
.sn-panel-links li, .sn-panel-label, .sn-tile, .sn-panel-contact, .sn-panel-foot {
  opacity: 0; transform: translateY(18px);
  transition: opacity .3s ease, transform .3s ease;
}
.sn.is-menu-open .sn-panel-links li, .sn.is-menu-open .sn-panel-label, .sn.is-menu-open .sn-tile,
.sn.is-menu-open .sn-panel-contact, .sn.is-menu-open .sn-panel-foot {
  opacity: 1; transform: none;
  transition: opacity .5s ease, transform .5s cubic-bezier(.2, .8, .2, 1);
  transition-delay: calc(.18s + var(--i, 0) * .045s);
}
html.sn-lock, html.sn-lock body { overflow: hidden !important; }

/* ---------- responsywność ---------- */
@media (max-width: 1180px) {
  .sn-links { display: none; }
  .sn-burger { display: inline-flex; }
  .sn-actions { gap: 8px; }
}
@media (max-width: 900px) {
  .sn-group { display: none; }
}
@media (max-width: 600px) {
  :root { --sn-h: 64px; --sn-h-scrolled: 58px; }
  .sn-bar { padding: 0 16px; gap: 12px; }
  .sn .sn-logo { height: 36px; min-width: 0; }
  .sn .sn-logo img { max-width: 132px; }
  .sn .sn-logo-square img { height: 40px; }
  .sn-cta { display: none; }
  .sn-panel-links a { font-size: 1.3rem; padding: 13px 2px; }
}
@media (min-width: 1181px) {
  .sn-panel { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .sn *, .sn::before, .sn-panel { transition: none !important; }
}

/* płynne przejście kolorów przy zmianie motywu */
html.theme-anim, html.theme-anim *, html.theme-anim *::before, html.theme-anim *::after {
  transition: background-color .35s ease, color .35s ease, border-color .35s ease, fill .35s ease !important;
}