/* Header styles for WATCH SERVICE ATELIER */

.wsa-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: linear-gradient(to bottom, rgba(5, 7, 11, 0.94), rgba(5, 7, 11, 0.88));
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.wsa-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-8);
}

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

.wsa-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-8);
}

.wsa-header__logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 30% 0, rgba(245, 196, 81, 0.7), rgba(16, 19, 27, 0.98));
  box-shadow: 0 0 0 1px rgba(245, 196, 81, 0.5), var(--shadow-soft);
}

.wsa-header__logo-icon {
  color: var(--colour-bg);
  font-size: 1rem;
}

.wsa-header__text-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.wsa-header__title {
  font-family: var(--font-display);
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.wsa-header__subtitle {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--colour-text-muted);
}

/* Nav */

.wsa-header__nav {
  display: flex;
  align-items: center;
}

.wsa-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-12);
  list-style: none;
}

.wsa-header__nav-link {
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey-100);
  position: relative;
}

.wsa-header__nav-link::after {
  height: 2px;
  bottom: -0.35rem;
}

.wsa-header__nav-link--cta {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
}

.wsa-header__nav-item--cta {
  margin-left: var(--space-4);
}

/* Mobile toggle */

.wsa-header__toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(5, 7, 11, 0.85);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}

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

/* Toggle animation when active */

.wsa-header--open .wsa-header__toggle-bar:nth-child(1) {
  transform: translateY(4px) rotate(45deg);
}

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

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

/* Mobile menu */

@media (max-width: 768px) {
  .wsa-header__inner {
    padding-block: var(--space-6);
  }

  .wsa-header__toggle {
    display: inline-flex;
  }

  .wsa-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: radial-gradient(circle at top left, rgba(245, 196, 81, 0.16), transparent 60%),
                rgba(5, 7, 11, 0.98);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    transform-origin: top;
    transform: scaleY(0.9);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base), transform var(--transition-base);
  }

  .wsa-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-12) var(--space-8) var(--space-12);
  }

  .wsa-header__nav-item--cta {
    width: 100%;
  }

  .wsa-header__nav-link--cta {
    width: 100%;
    justify-content: center;
  }

  .wsa-header--open .wsa-header__nav {
    opacity: 1;
    pointer-events: auto;
    transform: scaleY(1);
  }
}

@media (max-width: 480px) {
  .wsa-header__title {
    font-size: 0.8rem;
  }

  .wsa-header__subtitle {
    display: none;
  }
}