/* Header-specific styles for Nochesdecartas */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(5, 8, 7, 0.96), rgba(5, 8, 7, 0.9));
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-6);
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-family: var(--font-serif);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: var(--font-size-xs);
}

.brand-mark__dot {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 20%, #ecfdf5, var(--color-primary));
  box-shadow: 0 0 18px rgba(16, 185, 129, 0.9);
}

.brand-mark__text {
  color: var(--color-text);
}

.site-nav {
  display: flex;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--font-size-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.nav-link {
  position: relative;
  padding-block: var(--space-2);
  color: var(--color-text-muted);
  white-space: nowrap;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 0;
  height: 1px;
  background: var(--color-primary);
  transition: width var(--transition-normal);
}

.nav-link:hover {
  color: var(--color-text);
}

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

.nav-link--active {
  color: var(--color-primary);
}

.nav-item--cta .nav-link--cta {
  padding-inline: var(--space-6);
  padding-block: var(--space-2);
  border-radius: var(--radius-full);
  border: 1px solid rgba(16, 185, 129, 0.6);
  color: var(--color-text);
  background: radial-gradient(circle at top left, rgba(16, 185, 129, 0.22), rgba(5, 8, 7, 0.96));
}

.nav-item--cta .nav-link--cta:hover {
  background: radial-gradient(circle at top left, rgba(16, 185, 129, 0.45), rgba(5, 8, 7, 0.96));
}

/* Mobile nav toggle */

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid var(--color-border-subtle);
  background: rgba(7, 11, 10, 0.95);
  color: var(--color-text);
}

.nav-toggle__bar {
  display: block;
  flex: 0 0 auto;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-text);
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* Toggle animation when active */
.nav-toggle.is-active .nav-toggle__bar:nth-child(1) {
  transform: translateY(3px) rotate(45deg);
}

.nav-toggle.is-active .nav-toggle__bar:nth-child(2) {
  transform: translateY(-3px) rotate(-45deg);
}

/* Responsive behavior */

@media (max-width: 768px) {
  .site-header__inner {
    gap: var(--space-6);
  }

  .brand-mark {
    min-width: 0;
  }

  .nav-toggle {
    display: inline-flex;
    flex: 0 0 auto;
    margin-inline-start: auto;
  }

  .site-nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: radial-gradient(circle at top, #091712, #050707);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    transform-origin: top;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-6) var(--space-8) var(--space-8);
  }

  .nav-item {
    width: 100%;
  }

  .nav-link,
  .nav-item--cta .nav-link--cta {
    display: block;
    width: 100%;
  }

  /* By default (no JS) keep menu visible for accessibility */
  .site-nav {
    display: block;
  }

  /* JS-controlled collapsing */
  .site-nav.is-collapsed {
    display: none;
  }

  .site-nav.is-open {
    display: block;
  }
}