/* Header styles for FluentStepp */

.fs-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--color-surface);
  box-shadow: var(--shadow-xs);
}

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

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

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

.fs-header__logo-mark {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

.fs-header__logo-text {
  display: flex;
  flex-direction: column;
}

.fs-header__logo-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--font-size-lg);
  letter-spacing: -0.03em;
}

.fs-header__logo-subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

/* Navigation */
.fs-header__nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-4);
}

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

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

.fs-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 0;
  height: 2px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width var(--transition-base);
}

.fs-header__nav-link:hover,
.fs-header__nav-link:focus-visible {
  color: var(--color-text);
}

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

.fs-header__nav-item--highlight .fs-header__nav-link {
  color: var(--color-primary);
}

.fs-header__nav-link--cta {
  padding-inline: var(--space-3);
  padding-block: 0.3rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(47, 128, 237, 0.25);
  background-color: var(--color-primary-soft);
}

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

.fs-header__nav-cta {
  display: flex;
  align-items: center;
}

.fs-header__contact-btn {
  font-size: var(--font-size-xs);
  padding-inline: var(--space-4);
}

/* Mobile toggle */
.fs-header__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-gray-200);
  background-color: #ffffff;
}

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

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

/* Toggle animation when open */
.fs-header--menu-open .fs-header__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

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

/* Mobile layout */
@media (max-width: 768px) {
  .fs-header__inner {
    padding-block: var(--space-2);
  }

  .fs-header__toggle {
    display: inline-flex;
  }

  .fs-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 60px;
    background-color: var(--color-surface);
    box-shadow: var(--shadow-md);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-4);
    gap: var(--space-4);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition:
      max-height var(--transition-slow),
      opacity var(--transition-base),
      transform var(--transition-base),
      visibility var(--transition-base);
  }

  .fs-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

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

  .fs-header__nav-cta {
    justify-content: stretch;
  }

  .fs-header__contact-btn {
    width: 100%;
    justify-content: center;
  }

  .fs-header--menu-open .fs-header__nav {
    max-height: 480px;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
}

/* Reduce motion respect */
@media (prefers-reduced-motion: reduce) {
  .fs-header__nav {
    transition: none;
  }
}