/* Header layout and navigation for Morvessa */
.morvessa-header {
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

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

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 20% 0%, rgba(11,183,139,0.35), transparent 55%), #0b0c11;
  border: 1px solid rgba(11,183,139,0.65);
  box-shadow: var(--shadow-soft);
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.1rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.brand-tagline {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* Navigation */
.primary-nav {
  display: flex;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0.25rem 0;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-amber));
  transition: width var(--transition-base);
}

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

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

.nav-cta-btn {
  font-size: var(--font-size-xs);
  padding-inline: 1.4rem;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 4px;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid var(--color-border-subtle);
  background-color: rgba(24,25,36,0.95);
  cursor: pointer;
  color: var(--color-text);
}

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

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

/* Icon animation when open */
.morvessa-header.is-menu-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

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

/* Responsive behaviour */
@media (max-width: 880px) {
  .nav-toggle {
    display: inline-flex;
  }

  .primary-nav {
    position: fixed;
    inset-inline: 0;
    top: 56px;
    background: rgba(5,6,8,0.98);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(255,255,255,0.04);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
  }

  .morvessa-header.is-menu-open .primary-nav {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

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

  .nav-item {
    width: 100%;
  }

  .nav-cta {
    padding-top: var(--space-2);
    border-top: 1px solid var(--color-border-subtle);
    margin-top: var(--space-2);
  }

  .nav-cta-btn {
    width: 100%;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .primary-nav {
    transition: none;
  }

  .nav-toggle-bar {
    transition: none;
  }
}