/* Header styles for DanceFlowwStudio */

.df-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(18px);
  background: radial-gradient(circle at top left, rgba(224, 28, 139, 0.22), transparent 55%),
              radial-gradient(circle at top right, rgba(123, 43, 255, 0.28), transparent 55%),
              rgba(5, 3, 8, 0.92);
  border-bottom: 1px solid var(--color-border-subtle);
}

.df-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  padding-bottom: var(--space-8);
  gap: var(--space-10);
}

/* Brand */

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

.df-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-6);
  text-decoration: none;
}

.df-header__logo-link::after {
  content: none;
}

.df-header__logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 40% 60% 45% 55%;
  background:
    radial-gradient(circle at 20% 0%, rgba(241, 209, 138, 0.6), transparent 55%),
    radial-gradient(circle at 80% 100%, rgba(224, 28, 139, 0.9), rgba(123, 43, 255, 0.9));
  box-shadow: var(--shadow-glow-primary);
}

.df-header__text-group {
  display: flex;
  flex-direction: column;
}

.df-header__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.df-header__subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Navigation */

.df-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-10);
}

.df-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
  margin: 0;
  padding: 0;
}

.df-header__nav-item--primary {
  margin-left: var(--space-4);
}

.df-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.1rem;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  text-decoration: none;
}

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

.df-header__nav-link::after {
  height: 2px;
  bottom: 0;
  border-radius: var(--radius-pill);
}

.df-header__nav-link--cta {
  padding: 0.45rem 1rem;
  border-radius: var(--radius-pill);
  background: radial-gradient(circle at 0 0, rgba(241, 209, 138, 0.18), transparent 55%),
              linear-gradient(120deg, var(--color-primary), var(--color-accent));
  color: #fff;
  box-shadow: var(--shadow-soft);
}

.df-header__nav-link--cta::after {
  content: none;
}

.df-header__nav-link--cta:hover,
.df-header__nav-link--cta:focus-visible {
  background: linear-gradient(120deg, var(--color-primary-strong), var(--color-accent));
  box-shadow: var(--shadow-glow-primary);
}

.df-header__meta {
  display: flex;
  align-items: center;
}

/* Mobile toggle */

button.df-header__toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border-subtle);
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: rgba(5, 3, 8, 0.8);
}

.df-header__toggle-bar {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-neutral-100);
  transition: transform var(--transition-base), opacity var(--transition-fast), background var(--transition-fast);
}

.df-header__toggle:focus-visible {
  outline: 2px solid var(--color-gold-soft);
  outline-offset: 2px;
}

/* Mobile / tablet layout */

@media (max-width: 880px) {
  .df-header__inner {
    padding-top: var(--space-6);
    padding-bottom: var(--space-6);
  }

  button.df-header__toggle {
    display: inline-flex;
    flex-direction: column;
  }

  .df-header__nav {
    position: fixed;
    inset-block-start: 64px;
    inset-inline: 0;
    background: rgba(5, 3, 8, 0.98);
    border-top: 1px solid var(--color-border-subtle);
    padding: var(--space-16) var(--container-gutter) var(--space-20);
    display: none;
    flex-direction: column;
    gap: var(--space-16);
    box-shadow: var(--shadow-elevated);
  }

  .df-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-6);
  }

  .df-header__nav-item--primary {
    margin-left: 0;
    margin-top: var(--space-4);
  }

  .df-header__nav-link {
    font-size: var(--font-size-base);
  }

  .df-header__meta {
    justify-content: flex-start;
  }

  .df-header--menu-open .df-header__nav {
    display: flex;
  }

  /* Animated hamburger */
  .df-header--menu-open .df-header__toggle-bar:nth-child(1) {
    transform: translateY(4px) rotate(45deg);
  }

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

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

@media (max-width: 520px) {
  .df-header__subtitle {
    display: none;
  }
}