/* Header-specific styles for Quarvo Scene */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(5, 6, 10, 0.98), rgba(5, 6, 10, 0.86));
  border-bottom: 1px solid rgba(30, 64, 175, 0.35);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.8rem;
  padding-bottom: 0.8rem;
  gap: var(--space-4);
}

/* Brand */

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

.site-header__logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: radial-gradient(circle at 30% 20%, rgba(0, 193, 106, 0.9), transparent 60%),
              radial-gradient(circle at 70% 80%, rgba(255, 178, 26, 0.8), transparent 60%),
              var(--color-surface-soft);
  border: 1px solid rgba(0, 193, 106, 0.7);
  box-shadow: var(--shadow-glow-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-header__logo-chip {
  width: 18px;
  height: 18px;
  border-radius: 999px;
  border: 2px solid rgba(5, 6, 10, 0.92);
  box-shadow: 0 0 0 2px rgba(245, 247, 255, 0.9);
  background: radial-gradient(circle, #00c16a 0%, #009e57 55%, #007344 100%);
}

.site-header__brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.site-header__brand-name {
  font-family: var(--font-display);
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: var(--font-size-sm);
}

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

/* Navigation */

.site-header__nav-wrapper {
  display: flex;
  align-items: center;
  min-width: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav__item--cta {
  margin-left: var(--space-2);
  display: inline-flex;
  align-items: center;
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-soft);
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-normal), border-color var(--transition-normal);
}

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

.site-nav__link[aria-current="page"] {
  color: var(--color-text);
  border-color: var(--color-primary);
}

.site-nav__cta {
  font-size: var(--font-size-xs);
  padding-inline: 1.2rem;
  min-height: 2.4rem;
  line-height: 1;
  white-space: nowrap;
  letter-spacing: 0.06em;
}

/* Mobile toggle */

.site-header__toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.35rem 0.55rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(8, 11, 20, 0.9);
  color: var(--color-text);
}

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

.site-header__toggle-box {
  width: 20px;
  height: 16px;
  position: relative;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
}

.site-header__toggle-line {
  display: block;
  height: 2px;
  width: 100%;
  border-radius: 999px;
  background-color: var(--color-text);
  transition: transform var(--transition-normal), opacity var(--transition-normal), top var(--transition-normal), bottom var(--transition-normal);
}

.site-header__toggle-text {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

/* Mobile layout (default) */

@media (max-width: 767.98px) {
  .site-header__inner {
    gap: var(--space-2);
  }

  .site-header__nav-wrapper {
    position: fixed;
    inset: 0 0 auto 0;
    top: 56px;
    background: radial-gradient(circle at top, rgba(15, 23, 42, 0.98), rgba(2, 6, 23, 0.98));
    border-bottom: 1px solid var(--color-border-strong);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
  }

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

  .site-nav {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4) var(--container-padding-x) var(--space-5);
    width: 100%;
    flex-wrap: nowrap;
    justify-content: flex-start;
  }

  .site-nav__item {
    width: 100%;
  }

  .site-nav__item--cta {
    width: 100%;
    margin-left: 0;
  }

  .site-nav__cta {
    width: 100%;
    justify-content: center;
    text-align: center;
  }
}

/* Desktop layout */

@media (min-width: 768px) {
  .site-header__toggle {
    display: none;
  }

  .site-header__nav-wrapper {
    position: static;
    transform: none !important;
    opacity: 1 !important;
    pointer-events: auto !important;
    background: transparent;
    border-bottom: none;
    flex: 1;
    justify-content: flex-end;
  }

  .site-nav__cta {
    padding-inline: 1rem;
  }
}

/* Toggle open state (icon morph) */

.site-header__nav-wrapper.is-open + .dummy {}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}