/* Header styles for Roam Play Venue */

.rpv-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: linear-gradient(to bottom, rgba(5, 8, 20, 0.96), rgba(5, 8, 20, 0.88));
  backdrop-filter: blur(18px) saturate(130%);
  -webkit-backdrop-filter: blur(18px) saturate(130%);
  border-bottom: 1px solid var(--color-border-subtle);
}

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

/* Brand */
.rpv-header__brand {
  display: flex;
  align-items: center;
}

.rpv-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
}

.rpv-header__logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 12px;
  background:
    radial-gradient(circle at 20% 0, rgba(255, 255, 255, 0.26), transparent 55%),
    linear-gradient(135deg, var(--color-primary), var(--color-accent));
  box-shadow: var(--shadow-glow-primary);
  position: relative;
}

.rpv-header__logo-mark::after {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 9px;
  border: 1px solid rgba(5, 8, 20, 0.7);
  background: radial-gradient(circle at 30% 20%, rgba(5, 8, 20, 0.4), transparent 60%);
}

.rpv-header__logo-text {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--gray-50);
  white-space: nowrap;
}

/* Toggle (hamburger) */
.rpv-header__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: radial-gradient(circle at 0 0, rgba(255, 255, 255, 0.06), transparent 60%),
              rgba(7, 10, 22, 0.9);
  cursor: pointer;
  color: var(--gray-50);
  transition: background var(--duration-normal) var(--easing-standard),
              transform var(--duration-fast) var(--easing-standard),
              box-shadow var(--duration-fast) var(--easing-standard);
}

.rpv-header__toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--gray-50);
  transition: transform var(--duration-normal) var(--easing-standard),
              opacity var(--duration-normal) var(--easing-standard),
              background-color var(--duration-normal) var(--easing-standard);
}

.rpv-header__toggle:hover {
  box-shadow: 0 0 0 1px rgba(15, 240, 252, 0.4);
  background: radial-gradient(circle at 0 0, rgba(15, 240, 252, 0.16), transparent 60%),
              rgba(7, 10, 22, 0.95);
}

.rpv-header__toggle[aria-expanded="true"] {
  box-shadow: 0 0 0 1px rgba(15, 240, 252, 0.7), var(--shadow-glow-primary);
}

.rpv-header__toggle[aria-expanded="true"] .rpv-header__toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.rpv-header__toggle[aria-expanded="true"] .rpv-header__toggle-bar:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Navigation */
.rpv-header__nav {
  position: fixed;
  inset-inline: 0;
  top: 64px;
  background: radial-gradient(circle at top, rgba(39, 101, 255, 0.32), transparent 55%),
              radial-gradient(circle at bottom, rgba(15, 240, 252, 0.2), transparent 60%),
              rgba(5, 8, 20, 0.98);
  border-top: 1px solid var(--color-border-subtle);
  transform: translateY(-120%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--duration-normal) var(--easing-standard),
              opacity var(--duration-normal) var(--easing-standard),
              visibility 0s linear var(--duration-normal);
}

.rpv-header__nav-list {
  list-style: none;
  margin: 0;
  padding: var(--space-4) var(--space-4) var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.rpv-header__nav-item {
  display: block;
}

.rpv-header__nav-link {
  display: inline-flex;
  width: 100%;
  padding: 0.7rem 0.8rem;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-soft) !important;
  border: 1px solid transparent;
  background: transparent;
  transition: color var(--duration-normal) var(--easing-standard),
              background var(--duration-normal) var(--easing-standard),
              border-color var(--duration-normal) var(--easing-standard),
              box-shadow var(--duration-normal) var(--easing-standard);
}

.rpv-header__nav-link:hover {
  color: var(--gray-50);
  background: radial-gradient(circle at 0 0, rgba(255, 255, 255, 0.08), transparent 60%),
              rgba(5, 10, 30, 0.9);
  border-color: rgba(15, 240, 252, 0.5);
  box-shadow: 0 0 0 1px rgba(15, 240, 252, 0.4);
}

.rpv-header__nav-item--cta {
  margin-top: var(--space-3);
}

.rpv-header__nav-link--cta {
  justify-content: center;
  width: 100%;
}

/* Open state */
.rpv-header__nav--open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}

/* Desktop layout */
@media (min-width: 768px) {
  .rpv-header__inner {
    padding-block: var(--space-4);
  }

  .rpv-header__toggle {
    display: none;
  }

  .rpv-header__nav {
    position: static;
    inset: auto;
    transform: none;
    opacity: 1;
    visibility: visible;
    background: transparent;
    border-top: none;
  }

  .rpv-header__nav-list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-4);
    padding: 0;
  }

  .rpv-header__nav-link {
    width: auto;
    padding-inline: 0.35rem;
    padding-block: 0.1rem;
    border-radius: var(--radius-sm);
    border-color: transparent;
    background: transparent;
  }

  .rpv-header__nav-link:hover {
    background: transparent;
    box-shadow: none;
    color: var(--color-primary);
  }

  .rpv-header__nav-item--cta {
    margin-top: 0;
  }

  .rpv-header__nav-link--cta {
    padding-inline: 1.4rem;
    padding-block: 0.5rem;
    width: auto;
  }
}

/* High-contrast focus support where base :focus-visible is not applied */
.rpv-header__toggle:focus-visible,
.rpv-header__nav-link:focus-visible {
  box-shadow: 0 0 0 1px rgba(15, 240, 252, 0.9), 0 0 0 4px rgba(15, 240, 252, 0.3);
}