/* Header styles for ZAGRY STAGE */

.zs-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(5, 6, 10, 0.96), rgba(5, 6, 10, 0.88));
  border-bottom: 1px solid var(--color-border-subtle);
}

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

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

.zs-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: var(--font-size-md);
}

.zs-header__logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 40%;
  background: conic-gradient(from 180deg, #7c5cff, #ff4b81, #3ad99b, #7c5cff);
  box-shadow: 0 0 16px rgba(124, 92, 255, 0.8);
  position: relative;
}

.zs-header__logo-mark::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: inherit;
  background: radial-gradient(circle at 30% 20%, rgba(244, 245, 255, 0.32), transparent 55%),
              radial-gradient(circle at 80% 80%, rgba(5, 6, 10, 0.98), rgba(5, 6, 10, 0.98));
}

.zs-header__logo-text {
  text-shadow: 0 0 8px rgba(124, 92, 255, 0.5);
}

.zs-header__logo-text--accent {
  color: var(--color-primary-strong);
}

.zs-header__nav {
  display: flex;
}

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

.zs-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-text-soft);
  padding-block: 0.25rem;
}

.zs-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.15rem;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, #7c5cff, #ff4b81);
  transition: width var(--transition-normal);
}

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

.zs-header__nav-link--cta {
  padding-inline: 0.9rem;
  padding-block: 0.4rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(124, 92, 255, 0.7);
  background: radial-gradient(circle at top left, rgba(124, 92, 255, 0.38), transparent 60%),
              rgba(11, 13, 20, 0.96);
  box-shadow: 0 0 18px rgba(124, 92, 255, 0.55);
}

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

.zs-header__nav-link--cta:hover,
.zs-header__nav-link--cta:focus-visible {
  border-color: var(--color-primary-strong);
}

/* Mobile toggle */

.zs-header__toggle {
  display: none;
  width: 44px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-subtle);
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  background: rgba(5, 6, 10, 0.9);
}

.zs-header__toggle-bar {
  width: 20px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-neutral-800);
  transition: transform var(--transition-fast),
              opacity var(--transition-fast),
              width var(--transition-fast);
}

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

/* Open state */

.zs-header--menu-open .zs-header__toggle-bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

.zs-header--menu-open .zs-header__toggle-bar:nth-child(2) {
  opacity: 0;
  width: 0;
}

.zs-header--menu-open .zs-header__toggle-bar:nth-child(3) {
  transform: translateY(-4px) rotate(-45deg);
}

/* Responsive layout */

@media (max-width: 768px) {
  .zs-header__inner {
    padding-block: var(--space-2);
  }

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

  .zs-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 60px;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
  }

  .zs-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4) var(--space-4) var(--space-6);
    margin-inline: var(--space-3);
    border-radius: var(--radius-lg);
    background: radial-gradient(circle at top left, rgba(124, 92, 255, 0.2), transparent 60%),
                var(--color-surface);
    box-shadow: var(--shadow-strong);
  }

  .zs-header__nav-link {
    width: 100%;
  }

  .zs-header--menu-open .zs-header__nav {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
}

@media (min-width: 769px) {
  .zs-header__nav {
    position: static;
    opacity: 1 !important;
    transform: none !important;
    pointer-events: auto !important;
  }
}