/* Header-specific styles for SMOOTH PATH ULTIMATE */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(20px);
  background-color: rgba(5, 8, 22, 0.9);
  border-bottom: 1px solid rgba(15, 23, 42, 0.95);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 0.7rem;
}

/* Brand */
.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.site-header__logo-mark {
  width: 2.2rem;
  height: 2.2rem;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 30% 0%, rgba(56, 189, 248, 0.95), rgba(79, 70, 229, 0.8));
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.6);
}

.site-header__logo-orb {
  width: 1.2rem;
  height: 1.2rem;
  border-radius: var(--radius-full);
  background: radial-gradient(circle at 30% 0%, #e5f9ff, rgba(15, 23, 42, 0.95));
}

.site-header__brand-text {
  display: flex;
  flex-direction: column;
  gap: 0.05rem;
}

.site-header__brand-name {
  font-family: "Space Grotesk", system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  font-size: 0.85rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--color-neutral-50);
}

.site-header__brand-tagline {
  font-size: 0.7rem;
  color: var(--color-text-muted);
}

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

.site-header__nav-list {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  list-style: none;
}

.site-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  padding-block: 0.25rem;
  border-bottom: 1px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.site-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), #a855f7);
  transition: width var(--transition-normal);
}

.site-header__nav-link:hover,
.site-header__nav-link:focus-visible {
  color: var(--color-text);
  border-bottom-color: rgba(56, 189, 248, 0.0);
}

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

.site-header__nav-item--accent .site-header__nav-link--primary {
  padding-inline: 1rem;
  padding-block: 0.45rem;
  border-radius: 999px;
  border: 1px solid rgba(56, 189, 248, 0.5);
  background: radial-gradient(circle at 0 0, rgba(56, 189, 248, 0.18), rgba(15, 23, 42, 0.95));
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.7);
  font-weight: 500;
}

.site-header__nav-item--accent .site-header__nav-link--primary::after {
  display: none;
}

.site-header__nav-item--accent .site-header__nav-link--primary:hover,
.site-header__nav-item--accent .site-header__nav-link--primary:focus-visible {
  background: radial-gradient(circle at 0 0, rgba(56, 189, 248, 0.28), rgba(15, 23, 42, 0.98));
  transform: translateY(-1px);
}

/* Mobile toggle */
.site-header__toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  border: 1px solid rgba(31, 41, 55, 0.9);
  background-color: rgba(15, 23, 42, 0.95);
  color: var(--color-text);
  cursor: pointer;
}

.site-header__toggle-text {
  font-size: 0.8rem;
}

.site-header__toggle-box {
  position: relative;
  width: 1.4rem;
  height: 1.1rem;
}

.site-header__toggle-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-neutral-200);
  transition: transform var(--transition-normal), opacity var(--transition-normal), top var(--transition-normal), bottom var(--transition-normal);
}

.site-header__toggle-line--top { top: 0; }
.site-header__toggle-line--middle { top: 0.45rem; }
.site-header__toggle-line--bottom { bottom: 0; }

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line--top {
  top: 0.45rem;
  transform: rotate(45deg);
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line--middle {
  opacity: 0;
}

.site-header__toggle[aria-expanded="true"] .site-header__toggle-line--bottom {
  bottom: auto;
  top: 0.45rem;
  transform: rotate(-45deg);
}

/* Mobile layout */
@media (max-width: 768px) {
  .site-header__toggle {
    display: inline-flex;
  }

  .site-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 3.3rem;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.08), transparent 55%),
                rgba(5, 8, 22, 0.98);
    border-bottom: 1px solid rgba(15, 23, 42, 0.95);
    transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
  }

  .site-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: 0.75rem 1.25rem 1.1rem;
    gap: 0.9rem;
  }

  .site-header__nav-link {
    width: 100%;
    font-size: 0.95rem;
  }

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

/* Desktop refinements */
@media (min-width: 769px) {
  .site-header__nav-link[aria-current="page"] {
    color: var(--color-text);
  }

  .site-header__nav-link[aria-current="page"]::after {
    width: 100%;
  }
}