/* Header styles for PureWashFlow */
.pw-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(248, 250, 252, 0.98);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

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

/* Brand */
.pw-header__brand-link {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  color: var(--color-text);
}

.pw-header__logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 20%, #ffffff 0, #e0f2ff 45%, #1d9bf0 100%);
  box-shadow: var(--shadow-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.pw-header__logo-drop {
  width: 16px;
  height: 24px;
  border-radius: 999px 999px 999px 999px;
  background: #ffffff;
  box-shadow: 0 6px 12px rgba(15, 23, 42, 0.15);
  transform: rotate(-10deg) translateY(-1px);
}

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

.pw-header__brand-name {
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: 0.02em;
  font-size: 1.05rem;
}

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

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

.pw-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-20);
  list-style: none;
}

.pw-header__nav-link {
  position: relative;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

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

.pw-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.45rem;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #1d9bf0, #38bdf8);
  border-radius: 999px;
  transition: width var(--transition-normal);
}

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

.pw-header__nav-item--cta {
  margin-left: var(--space-12);
}

.pw-header__nav-link--cta {
  font-size: var(--text-sm);
  padding-inline: 1.3rem;
}

/* Mobile menu toggle */
.pw-header__menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(148, 163, 184, 0.6);
  background-color: rgba(255, 255, 255, 0.85);
  box-shadow: var(--shadow-sm);
}

.pw-header__menu-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.pw-header__menu-toggle-box {
  position: relative;
  width: 18px;
  height: 14px;
}

.pw-header__menu-toggle-line {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 999px;
  transition: transform var(--transition-normal), opacity var(--transition-normal), top var(--transition-normal), bottom var(--transition-normal);
}

.pw-header__menu-toggle-line--top {
  top: 0;
}

.pw-header__menu-toggle-line--middle {
  top: 6px;
}

.pw-header__menu-toggle-line--bottom {
  bottom: 0;
}

.pw-header__menu-toggle[aria-expanded="true"] .pw-header__menu-toggle-line--top {
  top: 6px;
  transform: rotate(45deg);
}

.pw-header__menu-toggle[aria-expanded="true"] .pw-header__menu-toggle-line--middle {
  opacity: 0;
}

.pw-header__menu-toggle[aria-expanded="true"] .pw-header__menu-toggle-line--bottom {
  bottom: 6px;
  transform: rotate(-45deg);
}

/* Mobile backdrop */
.pw-header__mobile-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.35);
  z-index: 30;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.pw-header__mobile-backdrop.is-visible {
  opacity: 1;
  pointer-events: auto;
}

/* Responsive behaviour */
@media (max-width: 768px) {
  .pw-header__inner {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
  }

  .pw-header__menu-toggle {
    display: inline-flex;
  }

  .pw-header__nav {
    position: fixed;
    inset: 64px 0 auto 0;
    background-color: rgba(248, 250, 252, 0.98);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(148, 163, 184, 0.25);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
    z-index: 35;
  }

  .pw-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-16) var(--space-16) var(--space-20);
    gap: var(--space-12);
  }

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

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

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

  .pw-header__nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .pw-header,
  .pw-header__nav,
  .pw-header__mobile-backdrop,
  .pw-header__menu-toggle-line {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}