/* Header styles for POLVIAN STAGE */

.ps-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: linear-gradient(to bottom, rgba(5, 7, 11, 0.98), rgba(5, 7, 11, 0.92));
  border-bottom: 1px solid rgba(212, 175, 55, 0.24);
  backdrop-filter: blur(14px);
}

.ps-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  gap: var(--space-4);
}

.ps-header__brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

.ps-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.ps-header__logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 0 1px rgba(212, 175, 55, 0.35), var(--shadow-sm);
  background: radial-gradient(circle at 30% 20%, rgba(240, 201, 74, 0.8) 0, #05070b 60%, #020309 100%);
}

.ps-header__logo-chip {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: inset 0 0 0 2px var(--color-accent-red);
}

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

.ps-header__brand-name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  white-space: nowrap;
}

.ps-header__brand-tagline {
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

/* Navigation */

.ps-header__nav {
  display: flex;
}

.ps-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.ps-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0.35rem 0;
}

.ps-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.3rem;
  width: 0;
  height: 2px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-red));
  transition: width var(--transition-normal);
}

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

.ps-header__nav-link--cta {
  padding: 0.45rem 1.4rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(212, 175, 55, 0.8);
  background: radial-gradient(circle at top, rgba(212, 175, 55, 0.16) 0, rgba(15, 19, 27, 0.95) 55%, #05070b 100%);
  box-shadow: var(--shadow-xs);
}

.ps-header__nav-link--cta::after {
  display: none;
}

.ps-header__nav-item--highlight .ps-header__nav-link {
  color: var(--color-primary-strong);
}

/* Mobile toggle */

.ps-header__toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-full);
  border: 1px solid rgba(148, 163, 184, 0.5);
  color: var(--color-text);
  cursor: pointer;
  background-color: rgba(5, 7, 11, 0.9);
}

.ps-header__toggle-box {
  width: 20px;
  height: 14px;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
}

.ps-header__toggle-line {
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent-red));
  transition: transform var(--transition-normal), opacity var(--transition-fast), translate var(--transition-normal);
}

.ps-header__toggle-text {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.ps-header__toggle[aria-expanded="true"] .ps-header__toggle-line:first-child {
  transform: translateY(6px) rotate(45deg);
}

.ps-header__toggle[aria-expanded="true"] .ps-header__toggle-line:last-child {
  transform: translateY(-6px) rotate(-45deg);
}

/* Mobile layout */

@media (max-width: 768px) {
  .ps-header__inner {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
  }

  .ps-header__brand-name {
    font-size: 0.8rem;
    letter-spacing: 0.14em;
  }

  .ps-header__brand-tagline {
    display: none;
  }

  .ps-header__toggle {
    display: inline-flex;
  }

  .ps-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: radial-gradient(circle at top, rgba(15, 19, 27, 0.98) 0, #05070b 70%);
    border-bottom: 1px solid rgba(212, 175, 55, 0.28);
    transform-origin: top;
    transform: scaleY(0.9);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
  }

  .ps-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-3) var(--space-4) var(--space-4);
    gap: var(--space-2);
  }

  .ps-header__nav-link {
    width: 100%;
    padding: 0.6rem 0;
  }

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

  .ps-header__nav--open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: scaleY(1);
  }
}

@media (max-width: 480px) {
  .ps-header__logo-link {
    gap: var(--space-2);
  }

  .ps-header__logo-mark {
    width: 32px;
    height: 32px;
  }

  .ps-header__logo-chip {
    width: 14px;
    height: 14px;
  }

  .ps-header__brand-name {
    font-size: 0.72rem;
    letter-spacing: 0.1em;
  }

  .ps-header__toggle {
    padding-inline: 0.6rem;
  }

  .ps-header__toggle-text {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ps-header__nav,
  .ps-header__toggle-line {
    transition: none !important;
  }
}