/* ============================================
   layout.css - Header, Footer, Navigation
   ============================================ */

/* ===== Skip link ===== */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 0.5rem 1rem;
  z-index: 100;
  border-radius: 0 0 var(--border-radius-sm) 0;
}

.skip-link:focus {
  top: 0;
  color: var(--color-white);
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem 0;
}

/* ===== Logo ===== */
.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--color-primary);
  font-size: var(--text-xl);
  letter-spacing: -0.01em;
  flex-shrink: 0;
}

.site-logo:hover {
  color: var(--color-primary-light);
}

.site-logo svg {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.site-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.site-logo-text small {
  font-family: var(--font-primary);
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ===== Main Nav ===== */
.main-nav {
  display: none;
}

.main-nav ul {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.main-nav a {
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding: 0.5rem 0;
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

.main-nav a.active {
  color: var(--color-primary);
}

/* ===== Header utilities (lang switch + phone) ===== */
.header-utils {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-phone {
  display: none;
  font-weight: 600;
  color: var(--color-primary);
  font-size: var(--text-sm);
  align-items: center;
  gap: 0.4rem;
}

.header-phone svg {
  width: 16px;
  height: 16px;
}

.lang-switch {
  /* Wersja EN wycofana - przełącznik języka ukryty */
  display: none !important;
  gap: 0.4rem;
  align-items: center;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
}

.lang-switch a,
.lang-switch span {
  padding: 0.1rem 0.3rem;
  color: var(--color-text-muted);
  border-radius: 4px;
}

.lang-switch a.active,
.lang-switch span.active {
  background-color: var(--color-primary);
  color: var(--color-white);
}

/* ===== Mobile nav toggle ===== */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 22px;
  background: transparent;
  border: 0;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* ===== Mobile menu overlay ===== */
.mobile-menu {
  position: fixed;
  inset: 0;
  background-color: var(--color-white);
  z-index: 49;
  padding: 5rem 1.5rem 2rem;
  transform: translateX(100%);
  transition: transform var(--transition-base);
  overflow-y: auto;
  visibility: hidden;
}

.mobile-menu.is-open {
  transform: translateX(0);
  visibility: visible;
}

.mobile-menu ul {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.mobile-menu a {
  display: block;
  padding: 1rem;
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu a:hover {
  color: var(--color-accent);
}

.mobile-menu .lang-switch {
  margin-top: 1.5rem;
  justify-content: center;
}

body.menu-open {
  overflow: hidden;
}

/* ===== Footer ===== */
.site-footer {
  background-color: var(--color-bg-dark);
  color: rgba(255,255,255,0.85);
  padding: 3rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer-col h3 {
  color: var(--color-white);
  font-size: var(--text-lg);
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.footer-col p,
.footer-col li {
  font-size: var(--text-sm);
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: rgba(255,255,255,0.7);
}

.footer-col a:hover {
  color: var(--color-white);
}

.footer-brand .site-logo {
  color: var(--color-white);
  margin-bottom: 1rem;
}

.footer-brand .site-logo-text small {
  color: rgba(255,255,255,0.7);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-size: var(--text-sm);
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 0.15rem;
  color: var(--color-steel);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.5rem;
  text-align: center;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.6);
}

/* ===== Breakpoints ===== */
@media (min-width: 768px) {
  .header-phone {
    display: inline-flex;
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
  }
}

@media (min-width: 1024px) {
  .main-nav {
    display: block;
  }

  .nav-toggle {
    display: none;
  }

  .mobile-menu {
    display: none;
  }
}