/* Header styles for Toolvexar */

.tv-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: radial-gradient(circle at top left, rgba(247, 201, 72, 0.04), transparent 50%),
    var(--color-surface);
  border-bottom: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-xs);
}

.tv-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-16);
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

/* Brand */

.tv-header__brand {
  display: flex;
  align-items: center;
}

.tv-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-10);
  color: var(--gray-50);
  text-decoration: none;
}

.tv-header__logo-mark {
  width: 34px;
  height: 34px;
  border-radius: 28% 72% 64% 36% / 32% 38% 62% 68%;
  background: conic-gradient(from 200deg, var(--color-accent), var(--color-primary), var(--color-primary-strong));
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.6), var(--shadow-sm);
}

.tv-header__logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Navigation */

.tv-header__nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-24);
}

.tv-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-20);
}

.tv-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0;
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.tv-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.35rem;
  height: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-accent), var(--color-primary));
  opacity: 0;
  transform: scaleX(0.4);
  transform-origin: center;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.tv-header__nav-link:hover,
.tv-header__nav-link:focus-visible {
  color: var(--gray-50);
}

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

.tv-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-12);
}

.tv-header__action-btn {
  white-space: nowrap;
}

/* Mobile toggle */

.tv-header__toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(0, 0, 0, 0.1);
  color: var(--gray-50);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  transition: border-color var(--transition-normal), background-color var(--transition-normal), box-shadow var(--transition-fast);
}

.tv-header__toggle:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.tv-header__toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--gray-50);
  transition: transform var(--transition-normal), opacity var(--transition-normal), width var(--transition-normal);
}

.tv-header__toggle[aria-expanded="true"] .tv-header__toggle-bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.tv-header__toggle[aria-expanded="true"] .tv-header__toggle-bar:nth-child(2) {
  opacity: 0;
  width: 0;
}

.tv-header__toggle[aria-expanded="true"] .tv-header__toggle-bar:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
}

/* Responsive behavior */

@media (max-width: 880px) {
  .tv-header__toggle {
    display: inline-flex;
  }

  .tv-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    margin-top: 0;
    padding: var(--space-16) var(--container-padding-x) var(--space-20);
    background-color: var(--color-surface-alt);
    border-bottom: 1px solid var(--color-border-subtle);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-16);
    box-shadow: var(--shadow-md);
  }

  .tv-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-12);
    width: 100%;
  }

  .tv-header__nav-link {
    font-size: var(--font-size-md);
  }

  .tv-header__actions {
    width: 100%;
    justify-content: flex-start;
  }

  .tv-header__nav--open {
    display: flex;
  }
}

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