/* Header styles for Chipryon */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(7, 11, 18, 0.96), rgba(7, 11, 18, 0.88));
  border-bottom: 1px solid rgba(31, 41, 55, 0.9);
}

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

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

.site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  font-size: var(--font-size-lg);
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.site-header__logo-mark {
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 30% 0, rgba(16, 185, 129, 0.9), rgba(5, 150, 105, 0.65));
  box-shadow: var(--shadow-glow-primary);
  font-size: 1.1rem;
}

.site-header__logo-text {
  font-family: var(--font-heading);
}

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

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

.site-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-muted);
  padding: 0.35rem 0;
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.2rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), #22c55e);
  transform-origin: center;
  transform: scaleX(0);
  transition: transform 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 {
  transform: scaleX(1);
}

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

.site-header__cta-btn {
  font-size: var(--font-size-xs);
  color: #0b1120 !important;
}

/* Mobile toggle */

.site-header__toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.25rem;
  border: 1px solid rgba(148, 163, 184, 0.7);
  color: var(--color-text);
  cursor: pointer;
  background-color: rgba(15, 23, 42, 0.9);
}

.site-header__toggle-bar {
  width: 1.3rem;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-text);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

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

/* Toggle animation when open */

.site-header--menu-open .site-header__toggle-bar:nth-child(1) {
  transform: translateY(6px) 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) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Responsive behavior */

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

  .site-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: radial-gradient(circle at top, rgba(15, 23, 42, 0.98), rgba(15, 23, 42, 0.96));
    border-bottom: 1px solid rgba(31, 41, 55, 0.9);
    transform-origin: top;
    transform: scaleY(0);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4) var(--space-4) var(--space-6);
  }

  .site-header__nav-link {
    padding: 0.4rem 0;
    font-size: var(--font-size-md);
  }

  .site-header__cta {
    display: none;
  }

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

@media (max-width: 480px) {
  .site-header__logo-text {
    font-size: var(--font-size-md);
  }
}