/* ==========================================================================
   Mega menu - zastepuje kaskadowy dropdown Oxygena
   Problem obecnej wersji: 11 pozycji w jednej kolumnie zaslania cale hero,
   a trzeci poziom wysuwa sie w prawo i naklada na formularz kontaktowy.
   Rozwiazanie: jeden panel na pelna szerokosc, 4 kolumny tematyczne,
   wszystkie 23 podstrony oferty widoczne od razu - zero hovera na 3. poziomie.
   ========================================================================== */

.site-header {
	position: sticky;
	top: 0;
	z-index: 100;
	background: var(--c-white);
	border-bottom: 1px solid var(--c-border);
}

.site-header__inner {
	display: flex;
	align-items: center;
	gap: var(--sp-5);
	min-height: var(--h-header);
}

.site-logo { flex: 0 0 auto; margin-right: auto; }
.site-logo img { width: 148px; height: 48px; }

/* --- pasek nawigacji ------------------------------------------------- */
.nav { display: none; }

@media (min-width: 1200px) {
	.nav { display: block; }
	.nav__list {
		display: flex;
		align-items: center;
		gap: var(--sp-2);
		margin: 0; padding: 0;
		list-style: none;
	}
	.nav__link {
		display: inline-flex;
		align-items: center;
		gap: var(--sp-2);
		padding: var(--sp-3) var(--sp-4);
		font-size: var(--fs-small);
		font-weight: 600;
		letter-spacing: 0.03em;
		text-transform: uppercase;
		text-decoration: none;
		color: var(--c-text-muted);
		border-radius: var(--r-sm);
		white-space: nowrap;
		transition: color 0.15s var(--ease), background-color 0.15s var(--ease);
	}
	.nav__link:hover,
	.nav__link[aria-expanded="true"] { color: var(--c-brand); background: var(--c-brand-bg); }
	.nav__link[aria-current="page"] { color: var(--c-brand); }

	.nav__link[aria-expanded="true"] .nav__chevron { transform: rotate(180deg); }
}

/* Rozmiar chevronu MUSI byc globalny - inline SVG bez width/height
   rozdyma sie do szerokosci kontenera. */
.nav__chevron {
	width: 12px;
	height: 12px;
	flex: 0 0 auto;
	transition: transform 0.2s var(--ease);
}

/* --- panel mega menu ------------------------------------------------- */
.mega {
	position: absolute;
	left: 0; right: 0;
	top: 100%;
	background: var(--c-white);
	border-top: 1px solid var(--c-border);
	box-shadow: var(--shadow-panel);
	/* domyslnie schowane, bez display:none - zeby dalo sie animowac
	   i zeby czytniki ekranu widzialy strukture przy otwarciu */
	opacity: 0;
	visibility: hidden;
	transform: translateY(-8px);
	transition: opacity 0.18s var(--ease), transform 0.18s var(--ease), visibility 0.18s;
}
.mega[data-open="true"] { opacity: 1; visibility: visible; transform: none; }

/* Ponizej progu desktopu panel nie istnieje. Bez tego jego 4-kolumnowa siatka
   renderuje sie (niewidocznie) na mobile i rozpycha strone w poziomie -
   layout viewport rosnie z 390 do 422 px i tresc szuflady wychodzi za ekran. */
@media (max-width: 1199.98px) {
	.mega { display: none; }
}

.mega__grid {
	display: grid;
	/* 4 kolumny tematyczne + waska kolumna kontaktowa z prawej */
	grid-template-columns: repeat(4, minmax(0, 1fr));
	gap: var(--sp-6) var(--sp-5);
	padding-block: var(--sp-6) var(--sp-7);
	align-items: start;
}

@media (min-width: 1280px) {
	.mega__grid { grid-template-columns: repeat(4, minmax(0, 1fr)) minmax(210px, 250px); }
	/* karta kontaktowa trzyma sie prawej krawedzi przez cala wysokosc panelu */
	.mega__aside { grid-column: 5; grid-row: 1 / -1; }
}

/* 1080-1279 px: brak miejsca na piata kolumne, karta idzie pod spod
   i rozklada sie w poziomie, zeby nie wydluzac panelu */
@media (min-width: 1200px) and (max-width: 1279.98px) {
	.mega__aside {
		grid-column: 1 / -1;
		display: flex;
		align-items: center;
		gap: var(--sp-5);
	}
	.mega__aside p { margin: 0; flex: 1 1 auto; }
	.mega__phone { margin: 0; }
	.mega__aside .btn { width: auto; }
	.mega__aside .btn + .btn { margin-top: 0; }
}

.mega__col-title {
	font-family: var(--f-heading);
	font-size: 0.78rem;
	font-weight: 700;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--c-brand);
	margin: 0 0 var(--sp-4);
	padding-bottom: var(--sp-2);
	border-bottom: 2px solid var(--c-brand-light);
}

.mega__group { margin-bottom: var(--sp-5); }
.mega__group:last-child { margin-bottom: 0; }

.mega__parent {
	display: block;
	font-family: var(--f-heading);
	font-size: 0.98rem;
	font-weight: 600;
	line-height: 1.3;
	color: var(--c-brand-dark);
	text-decoration: none;
	margin-bottom: var(--sp-2);
}
.mega__parent:hover { color: var(--c-brand); text-decoration: underline; text-underline-offset: 3px; }

.mega__children { margin: 0; padding: 0 0 0 var(--sp-4); list-style: none; }
.mega__children li + li { margin-top: 2px; }
.mega__child {
	display: block;
	padding: var(--sp-1) 0;
	font-size: 0.86rem;
	line-height: 1.4;
	color: var(--c-text-muted);
	text-decoration: none;
}
.mega__child:hover { color: var(--c-cta); }

/* czwarta kolumna: skrot kontaktowy zamiast kolejnej listy linkow */
.mega__aside {
	background: var(--c-brand-bg);
	padding: var(--sp-5);
	align-self: start;
}
.mega__aside p { margin: 0 0 var(--sp-3); font-size: 0.86rem; color: var(--c-text-muted); }
.mega__phone {
	display: block;
	font-family: var(--f-heading);
	font-size: 1.35rem;
	font-weight: 700;
	color: var(--c-cta);
	text-decoration: none;
	margin-bottom: var(--sp-4);
}
.mega__aside .btn { width: 100%; justify-content: center; }
.mega__aside .btn + .btn { margin-top: var(--sp-2); }

/* --- mobile ----------------------------------------------------------- */
.nav-toggle {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 48px; height: 48px;
	margin-left: var(--sp-2);
	background: var(--c-brand-bg);
	border: 0;
	border-radius: var(--r-sm);
	color: var(--c-brand-dark);
	cursor: pointer;
}
@media (min-width: 1200px) { .nav-toggle { display: none; } }

.drawer {
	position: fixed;
	inset: var(--h-header) 0 0 auto;
	width: min(420px, 100%);
	background: var(--c-white);
	border-left: 1px solid var(--c-border);
	overflow-y: auto;
	overscroll-behavior: contain;
	transform: translateX(100%);
	transition: transform 0.24s var(--ease);
	z-index: 99;
	padding-bottom: var(--sp-9);
}
.drawer[data-open="true"] { transform: none; }
@media (min-width: 1200px) { .drawer { display: none; } }

/* Akordeon zamiast plaskiej listy 30 pozycji. Domyslnie wszystko zwiniete,
   wiec pierwszy ekran menu miesci sie bez przewijania. */
.drawer__item { border-bottom: 1px solid var(--c-border); }
.drawer__link,
.drawer__summary {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: var(--sp-3);
	width: 100%;
	min-height: 56px;         /* touch target */
	padding: var(--sp-3) var(--sp-5);
	font-family: var(--f-heading);
	font-size: 1rem;
	font-weight: 600;
	text-align: left;
	color: var(--c-brand-dark);
	text-decoration: none;
	background: none;
	border: 0;
	cursor: pointer;
}
.drawer__summary[aria-expanded="true"] { color: var(--c-brand); background: var(--c-brand-bg); }
.drawer__summary .nav__chevron { flex: 0 0 auto; transition: transform 0.2s var(--ease); }
.drawer__summary[aria-expanded="true"] .nav__chevron { transform: rotate(180deg); }

.drawer__panel { display: none; padding: 0 var(--sp-5) var(--sp-4); }
.drawer__panel[data-open="true"] { display: block; }

.drawer__group { padding-block: var(--sp-3); }
.drawer__group + .drawer__group { border-top: 1px dashed var(--c-brand-light); }
.drawer__parent {
	display: block;
	font-weight: 600;
	font-size: 0.94rem;
	color: var(--c-brand-dark);
	text-decoration: none;
	padding-block: var(--sp-2);
}
.drawer__children { margin: 0; padding-left: var(--sp-4); list-style: none; border-left: 2px solid var(--c-brand-bg); }
.drawer__child {
	display: block;
	min-height: 44px;
	display: flex;
	align-items: center;
	font-size: 0.88rem;
	color: var(--c-text-muted);
	text-decoration: none;
}

.drawer__cta { padding: var(--sp-5); }
.drawer__cta .btn { width: 100%; justify-content: center; }
.drawer__cta .btn + .btn { margin-top: var(--sp-2); }

.mega-backdrop {
	position: fixed;
	inset: var(--h-header) 0 0 0;
	background: rgba(17, 59, 105, 0.28);
	opacity: 0;
	visibility: hidden;
	transition: opacity 0.2s var(--ease), visibility 0.2s;
	z-index: 98;
}
.mega-backdrop[data-open="true"] { opacity: 1; visibility: visible; }

/* 1200-1379 px: menu, logo i numer telefonu ledwo sie mieszcza w jednej linii.
   Sciskamy odstepy nawigacji, zeby naglowek nie wypychal strony w poziomie. */
@media (min-width: 1200px) and (max-width: 1379.98px) {
	.site-header__inner { gap: var(--sp-3); }
	.nav__list { gap: 0; }
	.nav__link { padding-inline: var(--sp-2); font-size: 0.8rem; letter-spacing: 0.01em; }
}