/* Header styles for ElektroZakup */

.ek-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-xs);
}

.ek-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

/* Brand */

.ek-header__brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

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

.ek-header__logo-mark {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at 30% 20%, var(--color-warning), var(--color-primary));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.ek-header__bolt {
  font-size: 1rem;
}

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

.ek-header__site-name {
  font-weight: 700;
  letter-spacing: 0.04em;
}

.ek-header__tagline {
  font-size: var(--font-size-xs);
  color: var(--color-muted-text);
}

/* Navigation */

.ek-header__nav {
  flex: 1 1 auto;
}

.ek-header__nav-list {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  list-style: none;
  
}

.ek-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-gray-700);
  padding: 0.25rem 0;
}

.ek-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-warning), var(--color-primary));
  transition: width var(--transition-normal);
}

.ek-header__nav-link:hover::after,
.ek-header__nav-link:focus-visible::after {
  width: 100%;
}

.ek-header__nav-link:hover {
  color: var(--color-primary-hover);
}

/* Actions */

.ek-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.ek-header__action-btn {
  font-size: var(--font-size-sm);
}

.ek-header__action-btn--primary {
  display: none;
}

/* Mobile toggle */

.ek-header__nav-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-300);
  background-color: var(--color-surface);
  color: var(--color-text);
}

.ek-header__nav-toggle-icon {
  position: relative;
  width: 18px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: var(--radius-round);
  transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.ek-header__nav-toggle-icon::before,
.ek-header__nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: var(--radius-round);
  transition: transform var(--transition-fast), top var(--transition-fast), opacity var(--transition-fast);
}

.ek-header__nav-toggle-icon::before {
  top: -6px;
}

.ek-header__nav-toggle-icon::after {
  top: 6px;
}

.ek-header__nav-toggle[aria-expanded="true"] .ek-header__nav-toggle-icon {
  background-color: transparent;
}

.ek-header__nav-toggle[aria-expanded="true"] .ek-header__nav-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.ek-header__nav-toggle[aria-expanded="true"] .ek-header__nav-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.ek-header__nav-toggle-label {
  font-size: var(--font-size-sm);
}

/* Responsive layout */

@media (max-width: 960px) {
  .ek-header__inner {
    gap: var(--space-2);
  }

  .ek-header__tagline {
    display: none;
  }

  .ek-header__nav-toggle {
    display: inline-flex;
    order: 2;
  }

  .ek-header__actions {
    display: none;
  }

  .ek-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-sm);
    transform-origin: top;
  }

  .ek-header__nav-list {
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-3) var(--container-padding) var(--space-4);
    gap: var(--space-3);
  }

  .ek-header__nav-link {
    width: 100%;
  }

  .ek-header__nav-link::after {
    display: none;
  }

  .ek-header__nav--open .ek-header__nav-list {
    display: flex;
  }
}

@media (min-width: 961px) {
  .ek-header__nav-toggle {
    display: none;
  }

  .ek-header__nav-list {
    display: flex !important;
  }

  .ek-header__action-btn--primary {
    display: inline-flex;
  }
}