/* Header styles for PIPS&PUPS LTD */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: linear-gradient(to bottom, rgba(247, 250, 255, 0.92), rgba(247, 250, 255, 0.8));
  border-bottom: 1px solid rgba(229, 231, 235, 0.9);
}

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

/* Brand / logo */

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

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

.site-header__logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: radial-gradient(circle at 20% 0%, #6ba6ff, #2d7ff9 50%, #1f5fcc 100%);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  box-shadow: var(--shadow-soft);
}

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

.site-header__logo-name {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  font-size: var(--font-size-md);
}

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

/* Navigation */

.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 0.2rem 0;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.15rem;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #2d7ff9, #6ba6ff);
  transition: width var(--transition-base);
}

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

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

.site-header__cta-group {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.site-header__cta {
  font-size: var(--font-size-sm);
  padding-inline: 1rem;
}

/* Mobile toggle */

.site-header__toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  background-color: rgba(255, 255, 255, 0.9);
}

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

.site-header__toggle-bar {
  position: absolute;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-text);
  transition: transform var(--transition-base), opacity var(--transition-base), top var(--transition-base), bottom var(--transition-base);
}

.site-header__toggle-bar:nth-child(1) {
  top: 13px;
}

.site-header__toggle-bar:nth-child(2) {
  top: 19px;
}

.site-header__toggle-bar:nth-child(3) {
  bottom: 13px;
}

.site-header--menu-open .site-header__toggle-bar:nth-child(1) {
  top: 19px;
  transform: rotate(45deg);
}

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

.site-header--menu-open .site-header__toggle-bar:nth-child(3) {
  bottom: auto;
  top: 19px;
  transform: rotate(-45deg);
}

/* Overlay for mobile menu */

.site-header__overlay {
  display: none;
}

.site-header__overlay.is-active {
  display: block;
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  z-index: 30;
}

/* Responsive behavior */

@media (max-width: 900px) {
  .site-header__toggle {
    display: inline-flex;
  }

  .site-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 64px;
    max-height: calc(100vh - 64px);
    background-color: #ffffff;
    box-shadow: 0 22px 45px rgba(15, 35, 52, 0.18);
    border-radius: 24px 24px 0 0;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-base), transform var(--transition-base), visibility var(--transition-base);
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-4) var(--space-4) var(--space-6);
    z-index: 40;
  }

  .site-header--menu-open .site-header__nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
  }

  .site-header__nav-link {
    font-size: var(--font-size-md);
    padding-block: 0.4rem;
  }

  .site-header__cta-group {
    width: 100%;
    flex-direction: column;
  }

  .site-header__cta {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 540px) {
  .site-header__logo-tagline {
    display: none;
  }
}

/* Utility class when menu is open to lock body scroll */

.body--no-scroll {
  overflow: hidden;
}