/* Header-specific styles for "AWE" Piotr Janaska */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  margin: 0;
  padding-top: env(safe-area-inset-top, 0);
  backdrop-filter: blur(14px);
  background-color: rgba(245, 246, 248, 0.92);
  max-width: 100%;
  overflow-x: clip;
}

.site-header__inner {
  position: relative;
  min-height: 4.25rem;
  min-width: 0;
}

.site-header__brand {
  flex-shrink: 0;
  min-width: 0;
}

.site-logo {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--font-size-md);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text);
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  max-width: 100%;
}

.site-logo__primary {
  overflow-wrap: anywhere;
}

/* Navigation */
.site-nav {
  display: flex;
  align-items: center;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
}

.site-nav__link {
  position: relative;
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  padding-bottom: 0.15rem;
  color: var(--color-text);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--color-primary);
  transition: width var(--transition-normal);
}

.site-nav__link:hover::after,
.site-nav__link:focus-visible::after {
  width: 100%;
}

.site-nav__item--cta .site-nav__link--cta {
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-primary);
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-soft);
}

.site-nav__item--cta .site-nav__link--cta::after {
  display: none;
}

.site-nav__item--cta .site-nav__link--cta:hover {
  background-color: #ff8b48;
  border-color: #ff8b48;
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 1px solid var(--color-border-strong);
  background-color: var(--color-bg-soft);
  padding: 0.3rem;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.nav-toggle__bar {
  display: block;
  width: 1.3rem;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-text);
  transition: transform var(--transition-normal), opacity var(--transition-normal), background-color var(--transition-normal);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* Variable layout variants (deterministic via data-header-variant) */
.site-header--dynamic[data-header-variant="centered"] .site-header__inner {
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.site-header--dynamic[data-header-variant="stacked"] .site-header__inner {
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-3);
}

.site-header--dynamic[data-header-variant="stacked"] .site-nav__list {
  justify-content: center;
}

/* Mobile menu overlay */
.mobile-menu-overlay {
  display: none;
}

/* Responsive behaviour */
@media (max-width: 768px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-header__inner {
    flex-wrap: nowrap;
    align-items: center;
    height: 4.25rem;
    min-height: 4.25rem;
    padding-block: 0;
  }

  .site-nav {
    display: flex;
    position: fixed;
    top: 4.25rem;
    right: 0;
    left: 0;
    z-index: 45;
    max-height: calc(100dvh - 4.25rem);
    overflow-x: hidden;
    overflow-y: auto;
    background-color: rgba(245, 246, 248, 0.98);
    border-top: 1px solid var(--color-border-subtle);
    border-bottom: 1px solid var(--color-border-subtle);
    box-shadow: var(--shadow-medium);
    transform: translateY(-110%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
    padding: var(--space-6) var(--space-5) var(--space-8);
    gap: var(--space-4);
  }

  .site-nav__link {
    font-size: var(--font-size-sm);
    display: inline-block;
    width: 100%;
  }

  .site-nav.is-open,
  .site-header--menu-open .site-nav {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .mobile-menu-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.32);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
    z-index: 39;
  }

  .mobile-menu-overlay.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav-toggle.is-active .nav-toggle__bar:nth-child(1) {
    transform: translateY(6.5px) rotate(45deg);
  }

  .nav-toggle.is-active .nav-toggle__bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.is-active .nav-toggle__bar:nth-child(3) {
    transform: translateY(-6.5px) rotate(-45deg);
  }

  .site-header--menu-open {
    z-index: 50;
    background-color: rgba(245, 246, 248, 0.98);
  }

  .site-header--dynamic[data-header-variant="centered"] .site-header__inner,
  .site-header--dynamic[data-header-variant="stacked"] .site-header__inner {
    flex-direction: row;
    align-items: center;
    text-align: left;
  }
}

@media (min-width: 769px) {
  .mobile-menu-overlay {
    display: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-nav,
  .nav-toggle__bar,
  .mobile-menu-overlay {
    transition: none !important;
  }
}