/* Header styles for BodyFiit Club */

.bfc-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: linear-gradient(90deg, rgba(15,23,42,0.96), rgba(2,6,23,0.96));
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
}

.bfc-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
}

/* Brand / logo */
.bfc-header__brand {
  display: flex;
  align-items: center;
}

.bfc-header__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--gray-50);
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: var(--font-size-sm);
}

.bfc-header__logo::after {
  content: none;
}

.bfc-header__logo-mark {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  background: radial-gradient(circle at 30% 20%, #bbf7d0 0, var(--color-primary) 20%, var(--color-accent) 70%, #020617 100%);
  box-shadow: 0 0 0 2px rgba(15,23,42,0.9), 0 0 22px rgba(34,197,94,0.8);
}

.bfc-header__logo-text {
  white-space: nowrap;
}

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

.bfc-header__nav-list {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.bfc-header__nav-item--highlight {
  margin-left: 0.5rem;
}

.bfc-header__nav-link {
  position: relative;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--gray-100);
  padding-block: 0.25rem;
}

.bfc-header__nav-link::after {
  bottom: -0.2rem;
  height: 2px;
}

.bfc-header__nav-link:hover,
.bfc-header__nav-link:focus-visible {
  color: var(--gray-50);
}

.bfc-header__nav-link--cta {
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Hamburger toggle */
.bfc-header__toggle {
  position: relative;
  display: none;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(148, 163, 184, 0.55);
  background: rgba(15, 23, 42, 0.9);
  color: var(--gray-50);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.bfc-header__toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.bfc-header__toggle-bar {
  position: absolute;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--gray-100);
  transition: transform var(--transition-base), opacity var(--transition-base), top var(--transition-base), bottom var(--transition-base);
}

.bfc-header__toggle-bar:nth-child(1) {
  top: 13px;
}

.bfc-header__toggle-bar:nth-child(2) {
  top: 19px;
}

.bfc-header__toggle-bar:nth-child(3) {
  bottom: 13px;
}

.bfc-header__toggle[aria-expanded="true"] .bfc-header__toggle-bar:nth-child(1) {
  top: 19px;
  transform: rotate(45deg);
}

.bfc-header__toggle[aria-expanded="true"] .bfc-header__toggle-bar:nth-child(2) {
  opacity: 0;
}

.bfc-header__toggle[aria-expanded="true"] .bfc-header__toggle-bar:nth-child(3) {
  bottom: 19px;
  transform: rotate(-45deg);
}

/* Mobile styles */
@media (max-width: 900px) {
  .bfc-header__toggle {
    display: inline-flex;
  }

  .bfc-header__nav {
    position: fixed;
    inset-inline: 0;
    top: 60px;
    background: #0f172afa;
    backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(148,163,184,0.4);
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-base), opacity var(--transition-base);
  }

  .bfc-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-4) var(--space-4) var(--space-6);
    gap: 1rem;
  }

  .bfc-header__nav-item--highlight {
    width: 100%;
  }

  .bfc-header__nav-item--highlight .bfc-header__nav-link--cta {
    width: 100%;
    justify-content: center;
  }

  .bfc-header__nav-link {
    font-size: var(--font-size-md);
  }

  .bfc-header__nav-link::after {
    display: none;
  }

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

@media (max-width: 480px) {
  .bfc-header__logo-text {
    font-size: 0.72rem;
  }
}