/* Header-specific styles for Smart Game Adventure */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: linear-gradient(
    to bottom,
    rgba(5, 7, 13, 0.96),
    rgba(5, 7, 13, 0.9),
    transparent
  );
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.header-brand {
  display: flex;
  align-items: center;
}

.header-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.header-logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: radial-gradient(circle at 20% 0, #fbe29a 0, #f3b23a 35%, #8f5b16 100%);
  color: #05070d;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
}

.header-logo-text {
  display: flex;
  flex-direction: column;
}

.header-logo-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #ffffff;
}

.header-logo-subtitle {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Navigation */

.primary-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
}

.nav-link {
  position: relative;
  font-size: 0.9rem;
  color: var(--gray-700);
  padding: 0.25rem 0;
  transition: color var(--transition-normal);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.15rem;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-success));
  transition: width var(--transition-normal);
}

.nav-link:hover {
  color: #ffffff;
}

.nav-link:hover::after,
.nav-link--active::after {
  width: 100%;
}

.nav-link--active {
  color: #ffffff;
}

.nav-link--cta {
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(243, 178, 58, 0.7);
  background: rgba(243, 178, 58, 0.08);
  color: var(--color-primary);
}

.nav-link--cta::after {
  display: none;
}

.nav-link--cta:hover {
  background: rgba(243, 178, 58, 0.18);
  color: #ffe1a3;
}

/* Mobile navigation toggle */

.nav-toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(7, 10, 24, 0.96);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
}

.nav-toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: #ffffff;
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.nav-toggle-bar + .nav-toggle-bar {
  margin-top: 4px;
}

.nav-toggle.is-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle.is-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile layout */

@media (max-width: 767.98px) {
  .nav-toggle {
    display: inline-flex;
    flex-direction: column;
  }

  .primary-nav {
    position: fixed;
    inset: 0 0 auto 0;
    top: 56px;
    background: radial-gradient(circle at top, #131a30 0, var(--color-bg-elevated) 55%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-normal), opacity var(--transition-normal), visibility var(--transition-normal);
  }

  .primary-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4) var(--container-padding-x) var(--space-6);
    gap: var(--space-3);
  }

  .nav-link {
    font-size: 1rem;
  }

  .site-header-inner {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
  }
}

@media (min-width: 768px) {
  .primary-nav {
    position: static;
    transform: none !important;
    opacity: 1 !important;
    visibility: visible !important;
  }
}