/* ==========================================================================
   Nagłówek, nawigacja, stopka — współdzielone na wszystkich podstronach
   ========================================================================== */

/* — Header — */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(243, 241, 235, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: var(--border);
}
.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.1rem;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  font-family: var(--font-display);
  font-size: var(--step-1);
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.brand__mark {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--red);
  flex-shrink: 0;
}
.brand__sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
  font-weight: 500;
  display: none;
}
@media (min-width: 640px) { .brand__sub { display: inline; } }

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 34px;
  height: 34px;
  z-index: 110;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--ink);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (min-width: 1024px) {
  .nav-toggle { display: none; }
}

.site-nav {
  position: fixed;
  inset: 0;
  background: var(--paper);
  padding: 6rem 1.5rem 2rem;
  transform: translateX(100%);
  transition: transform var(--dur) var(--ease);
  z-index: 105;
  overflow-y: auto;
}
.site-nav.is-open { transform: translateX(0); }
.site-nav__list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: var(--border);
}
.site-nav__list li { border-bottom: var(--border); }
.site-nav__list a {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  padding: 1.1rem 0.2rem;
  font-family: var(--font-display);
  font-size: var(--step-2);
}
.site-nav__list .num {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--red);
}
.site-nav__contact {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--ink-soft);
}

@media (min-width: 1024px) {
  .site-nav {
    position: static;
    transform: none;
    background: transparent;
    padding: 0;
    overflow: visible;
    z-index: auto;
  }
  .site-nav__list {
    flex-direction: row;
    align-items: center;
    gap: 2.1rem;
    border-top: none;
  }
  .site-nav__list li { border-bottom: none; }
  .site-nav__list a {
    padding: 0;
    font-family: var(--font-body);
    font-size: var(--step--1);
    font-weight: 600;
    letter-spacing: 0.01em;
    position: relative;
  }
  .site-nav__list a::after {
    content: '';
    position: absolute;
    left: 0; right: 100%;
    bottom: -6px;
    height: 1.5px;
    background: var(--red);
    transition: right var(--dur-fast) var(--ease);
  }
  .site-nav__list a:hover::after,
  .site-nav__list a[aria-current="page"]::after { right: 0; }
  .site-nav__list .num { display: none; }
  .site-nav__contact { display: none; }
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.site-header__cta { display: none; }
@media (min-width: 1024px) { .site-header__cta { display: inline-flex; } }

/* — Footer — */
.site-footer {
  background: var(--ink);
  color: var(--paper);
  padding-top: clamp(3rem, 6vw, 5.5rem);
}
.site-footer a:hover { color: var(--red-soft); }
.footer-grid {
  display: grid;
  gap: 2.75rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(243,241,235,0.15);
}
@media (min-width: 800px) {
  .footer-grid {
    grid-template-columns: 1.3fr 1fr 1fr;
    gap: 2rem;
  }
}
.footer-brand {
  font-family: var(--font-display);
  font-size: var(--step-2);
  margin-bottom: 0.9rem;
}
.footer-tagline {
  color: rgba(243,241,235,0.6);
  max-width: 32ch;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(243,241,235,0.5);
  font-weight: 500;
  margin-bottom: 1rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.65rem; }
.footer-col address { font-style: normal; }
.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding-block: 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: rgba(243,241,235,0.45);
}
@media (min-width: 640px) {
  .footer-bottom { flex-direction: row; justify-content: space-between; }
}