/* Header styles for KLOPA LTD */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-3);
}

.site-header__branding {
  display: flex;
  align-items: center;
}

.site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--gray-900);
}

.site-header__logo-mark {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.site-header__brand-text {
  display: flex;
  flex-direction: column;
}

.site-header__brand-name {
  font-weight: 600;
  letter-spacing: 0.03em;
  font-size: var(--font-size-base);
}

.site-header__brand-tagline {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* Navigation */

.site-header__nav {
  display: flex;
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--gray-700);
  padding-block: 0.25rem;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.1rem;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-primary);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-base);
}

.site-header__nav-link:hover::after,
.site-header__nav-link:focus-visible::after {
  transform: scaleX(1);
}

.site-header__nav-item--primary .site-header__nav-link--button {
  padding-inline: 1rem;
  padding-block: 0.4rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-primary);
  background-color: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.site-header__nav-item--primary .site-header__nav-link--button::after {
  display: none;
}

.site-header__nav-item--primary .site-header__nav-link--button:hover,
.site-header__nav-item--primary .site-header__nav-link--button:focus-visible {
  background-color: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}

/* Mobile toggle */

.site-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--gray-200);
  background-color: #ffffff;
  cursor: pointer;
}

.site-header__toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--gray-800);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.site-header__toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Toggle animation when menu is open */

.site-header--menu-open .site-header__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header--menu-open .site-header__toggle-bar:nth-child(2) {
  opacity: 0;
}

.site-header--menu-open .site-header__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Responsive behavior */

@media (max-width: 768px) {
  .site-header__toggle {
    display: inline-flex;
  }

  .site-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 56px; /* approx header height */
    background-color: var(--color-surface);
    box-shadow: var(--shadow-md);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4);
    gap: var(--space-3);
  }

  .site-header__nav-item--primary {
    width: 100%;
  }

  .site-header__nav-item--primary .site-header__nav-link--button {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .site-header--menu-open .site-header__nav {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
}

@media (min-width: 769px) {
  .site-header__nav {
    margin-left: auto;
  }
}