/* Header styles for Trends Shops Link Assurance */

.tsla-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--color-surface);
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04);
}

.tsla-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-16);
  padding-bottom: var(--space-16);
}

/* Brand */
.tsla-header__brand {
  display: flex;
  align-items: center;
}

.tsla-header__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-12);
  font-weight: 600;
  color: var(--gray-900);
}

.tsla-header__logo:hover {
  color: var(--gray-900);
}

.tsla-header__logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 18px;
  background: radial-gradient(circle at 30% 20%, #4f8bd9, #133e7c);
  position: relative;
  box-shadow: var(--shadow-md);
}

.tsla-header__logo-mark::after {
  content: "";
  position: absolute;
  inset: 9px;
  border-radius: 14px;
  border: 2px solid rgba(255, 255, 255, 0.75);
  box-shadow: 0 0 0 1px rgba(19, 62, 124, 0.35);
}

.tsla-header__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.tsla-header__logo-primary {
  font-size: var(--font-size-sm);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--gray-700);
}

.tsla-header__logo-secondary {
  font-size: var(--font-size-lg);
  color: var(--color-primary);
}

/* Navigation */
.tsla-header__nav {
  display: flex;
  align-items: center;
}

.tsla-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-16);
  list-style: none;
}

.tsla-header__nav-item--primary {
  margin-left: var(--space-8);
}

.tsla-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.25rem;
  font-size: var(--font-size-sm);
  color: var(--gray-700);
  text-decoration: none;
}

.tsla-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-soft));
  transition: width var(--transition-base);
}

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

.tsla-header__nav-link:hover::after {
  width: 100%;
}

.tsla-header__nav-link--cta {
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-soft));
  color: #ffffff;
  box-shadow: var(--shadow-md);
}

.tsla-header__nav-link--cta::after {
  display: none;
}

.tsla-header__nav-link--cta:hover {
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.tsla-header__nav-link--cta:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Mobile toggle */
.tsla-header__toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  border: 1px solid var(--gray-200);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background-color: #ffffff;
}

.tsla-header__toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--gray-700);
  transition: transform var(--transition-base), opacity var(--transition-base), width var(--transition-base);
}

.tsla-header__toggle:focus-visible {
  outline: 2px solid var(--color-primary-soft);
  outline-offset: 3px;
}

.tsla-header__toggle--active .tsla-header__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.tsla-header__toggle--active .tsla-header__toggle-bar:nth-child(2) {
  opacity: 0;
  width: 0;
}

.tsla-header__toggle--active .tsla-header__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

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

  .tsla-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background-color: var(--color-surface);
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
    transform-origin: top;
    transform: scaleY(0.9);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base), transform var(--transition-base);
  }

  .tsla-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-16);
    gap: var(--space-8);
  }

  .tsla-header__nav-item--primary {
    width: 100%;
    margin-left: 0;
    margin-top: var(--space-8);
  }

  .tsla-header__nav-link--cta {
    width: 100%;
    justify-content: center;
  }

  .tsla-header__nav--open {
    opacity: 1;
    transform: scaleY(1);
    pointer-events: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tsla-header__nav,
  .tsla-header__toggle-bar,
  .tsla-header__nav-link::after,
  .tsla-header__nav-link--cta {
    transition: none !important;
  }
}