/* Header-specific styles for Danubero */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.site-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text);
}

.site-header__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.9rem;
  background: radial-gradient(circle at 20% 0, var(--color-chip-blue), transparent 55%),
    radial-gradient(circle at 80% 120%, var(--color-primary), transparent 55%),
    #020617;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.9);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
}

.site-header__logo-text {
  display: flex;
  flex-direction: column;
}

.site-header__logo-name {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.95rem;
}

.site-header__logo-tagline {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* Navigation */
.site-header__nav {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  font-size: 0.9rem;
}

.nav-link--cta {
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(248, 250, 252, 0.08);
  background: radial-gradient(circle at 0 0, rgba(255, 75, 110, 0.25), transparent 60%),
    rgba(15, 23, 42, 0.9);
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.nav-link--cta:hover {
  background: var(--color-primary);
  color: #ffffff;
}

/* Mobile toggle */
.site-header__toggle {
  display: none;
  position: relative;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: rgba(15, 23, 42, 0.9);
  align-items: center;
  justify-content: center;
  padding: 0;
}

.site-header__toggle-bar {
  position: absolute;
  width: 1.3rem;
  height: 2px;
  border-radius: 999px;
  background: #e5e7eb;
  transition: transform var(--transition-medium), opacity var(--transition-medium), top var(--transition-medium), bottom var(--transition-medium);
}

.site-header__toggle-bar:nth-child(1) {
  top: 0.82rem;
}

.site-header__toggle-bar:nth-child(2) {
  top: 1.18rem;
}

.site-header__toggle-bar:nth-child(3) {
  top: 1.54rem;
}

.site-header__toggle--open .site-header__toggle-bar:nth-child(1) {
  top: 1.18rem;
  transform: rotate(45deg);
}

.site-header__toggle--open .site-header__toggle-bar:nth-child(2) {
  opacity: 0;
}

.site-header__toggle--open .site-header__toggle-bar:nth-child(3) {
  top: 1.18rem;
  transform: rotate(-45deg);
}

/* Mobile nav layout */
@media (max-width: 768px) {
  .site-header__toggle {
    display: inline-flex;
  }

  .site-header__nav {
    position: fixed;
    inset: 3.5rem 0 auto 0;
    padding: 0.75rem var(--space-4) 1rem;
    background: radial-gradient(circle at top, rgba(15, 23, 42, 0.98), rgba(5, 8, 20, 0.98));
    border-bottom: 1px solid rgba(148, 163, 184, 0.22);
    transform-origin: top;
    transform: scaleY(0.9);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition-medium), transform var(--transition-medium), visibility var(--transition-medium);
  }

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

  .nav-links {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .nav-link--cta {
    width: 100%;
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .site-header__logo-tagline {
    display: none;
  }
}

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