/* ==========================================================================
   Naglowek, menu mobilne, stopka
   ========================================================================== */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--header-h);
  color: var(--paper);
  transition: background-color var(--t-med) var(--ease), color var(--t-med) var(--ease),
    box-shadow var(--t-med) var(--ease);
}

.site-header::before {
  /* delikatne przyciemnienie gory nad filmem, zeby nawigacja byla czytelna */
  content: "";
  position: absolute;
  inset: 0 0 -40px;
  z-index: -1;
  background: linear-gradient(rgba(10, 17, 29, 0.55), rgba(10, 17, 29, 0));
  transition: opacity var(--t-med) var(--ease);
  pointer-events: none;
}

.site-header.is-solid {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 1px 0 var(--line);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  backdrop-filter: saturate(1.4) blur(14px);
}

.site-header.is-solid::before {
  opacity: 0;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: none;
}

.brand__logo {
  width: auto;
  height: 38px;
}

@media (max-width: 960px) {
  .brand__logo {
    height: 30px;
  }
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 2.4vw, 40px);
}

.nav__list {
  display: flex;
  gap: clamp(20px, 2.4vw, 40px);
}

.nav__link {
  position: relative;
  display: block;
  padding-block: 8px;
  font-size: 0.9375rem;
  font-weight: 500;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--t-med) var(--ease);
}

.nav__link:hover::after,
.nav__link[aria-current]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav__cta {
  min-height: 42px;
  padding: 0 18px;
  font-size: 0.875rem;
  --btn-bg: transparent;
  --btn-fg: currentColor;
  --btn-bd: currentColor;
}

.nav__cta:hover {
  --btn-bg: var(--paper);
  --btn-fg: var(--ink);
  --btn-bd: var(--paper);
}

.site-header.is-solid .nav__cta:hover {
  --btn-bg: var(--ink);
  --btn-fg: var(--paper);
  --btn-bd: var(--ink);
}

/* ---------- Przelacznik jezyka (rozwijany, za przyciskiem Kontakt) ---------- */

.lang {
  position: relative;
  display: flex;
  align-items: center;
}

.lang::before {
  /* pionowa kreska oddzielajaca jezyk od menu */
  content: "";
  width: 1px;
  height: 22px;
  margin-right: clamp(14px, 1.4vw, 22px);
  background: currentColor;
  opacity: 0.3;
}

.lang__toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.lang__chevron {
  width: 10px;
  height: 6px;
  transition: transform var(--t-fast) var(--ease);
}

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

.lang__menu {
  position: absolute;
  top: calc(100% + 10px);
  right: -8px;
  min-width: 190px;
  padding: 6px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  box-shadow: 0 18px 40px -18px rgba(10, 17, 29, 0.35);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease), visibility 0s linear var(--t-fast);
}

.lang.is-open .lang__menu {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity var(--t-fast) var(--ease), transform var(--t-fast) var(--ease);
}

.lang__item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 12px;
  font-size: 0.875rem;
  font-weight: 500;
}

a.lang__item:hover {
  background: var(--mist);
}

.lang__check {
  width: 12px;
  height: 10px;
}

.lang__item--soon {
  color: var(--grey-500);
  cursor: default;
}

.lang__item small {
  font-size: var(--fs-micro);
  letter-spacing: 0.06em;
  color: var(--grey-500);
}

.nav-toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  margin-right: -10px;
}

.nav-toggle__bar {
  position: absolute;
  left: 11px;
  width: 22px;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--t-med) var(--ease), top var(--t-med) var(--ease);
}

.nav-toggle__bar:nth-child(1) {
  top: 17px;
}

.nav-toggle__bar:nth-child(2) {
  top: 25px;
}

.nav-open .nav-toggle__bar:nth-child(1) {
  top: 21px;
  transform: rotate(45deg);
}

.nav-open .nav-toggle__bar:nth-child(2) {
  top: 21px;
  transform: rotate(-45deg);
}

@media (max-width: 960px) {
  .nav-toggle {
    display: block;
  }

  .nav {
    position: fixed;
    inset: 0;
    z-index: -1;
    flex-direction: column;
    align-items: stretch;
    justify-content: space-between;
    gap: 40px;
    padding: calc(var(--header-h) + 32px) var(--gutter) 40px;
    background: var(--navy);
    color: var(--paper);
    visibility: hidden;
    opacity: 0;
    transition: opacity var(--t-med) var(--ease), visibility 0s linear var(--t-med);
  }

  .nav-open .nav {
    visibility: visible;
    opacity: 1;
    transition: opacity var(--t-med) var(--ease);
  }

  .nav__list {
    flex-direction: column;
    gap: 0;
  }

  .nav__link {
    padding-block: 14px;
    font-size: clamp(1.75rem, 7vw, 2.5rem);
    font-weight: 520;
    letter-spacing: -0.02em;
    border-bottom: 1px solid var(--navy-line);
  }

  .nav__link::after {
    display: none;
  }

  /* w menu mobilnym bez rozwijania: "Polski  English wkrotce" w jednym rzedzie */
  .lang {
    order: 1;
    margin-top: auto;
  }

  .lang::before,
  .lang__toggle {
    display: none;
  }

  .lang__menu {
    position: static;
    display: flex;
    gap: 8px;
    min-width: 0;
    padding: 0;
    color: inherit;
    background: none;
    border: 0;
    box-shadow: none;
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .lang__item {
    padding: 8px 0;
    margin-right: 20px;
    font-size: 1rem;
  }

  a.lang__item:hover {
    background: none;
  }

  .lang__item--soon,
  .lang__item small {
    color: var(--grey-300);
  }

  .nav__cta {
    order: 2;
  }

  .nav__cta {
    align-self: flex-start;
    min-height: 54px;
    padding: 0 26px;
    font-size: 1rem;
  }

  .nav-open .site-header {
    color: var(--paper);
    background: transparent;
    box-shadow: none;
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }

  .nav-open .site-header::before {
    opacity: 0;
  }

  .nav-open {
    overflow: hidden;
  }
}

/* ---------- Stopka ---------- */

.site-footer {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding-top: clamp(72px, 8vw, 128px);
  padding-bottom: 32px;
  background: var(--ink);
  color: var(--grey-300);
  font-size: 0.9375rem;
}

.site-footer a {
  transition: color var(--t-fast) var(--ease);
}

.site-footer a:hover {
  color: var(--paper);
}

.footer__top {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
  gap: 48px 40px;
  padding-bottom: clamp(56px, 6vw, 96px);
}

.footer__brand .brand__logo {
  height: 40px;
  color: var(--paper);
}

/* duzy sygnet w tle stopki */
.footer__mark {
  position: absolute;
  right: -6%;
  bottom: -22%;
  z-index: -1;
  width: min(68vw, 1100px);
  height: auto;
  color: var(--paper);
  opacity: 0.035;
  pointer-events: none;
}

.footer__claim {
  margin-top: 28px;
  max-width: 22ch;
  font-size: 1.375rem;
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.footer__title {
  margin-bottom: 18px;
  font-size: var(--fs-micro);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grey-400);
}

.footer__list {
  display: grid;
  gap: 10px;
}

.footer__list address {
  font-style: normal;
}

.footer__ext {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.footer__ext-icon {
  width: 11px;
  height: 11px;
  opacity: 0.7;
}

.footer__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--dot);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 32px;
  padding-top: 28px;
  border-top: 1px solid var(--navy-line);
  font-size: var(--fs-small);
  color: var(--grey-400);
}

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 28px;
}

@media (max-width: 960px) {
  .footer__top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer__brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 520px) {
  .footer__top {
    grid-template-columns: minmax(0, 1fr);
  }
}