/* ZeenFlowStudio Header Styles */

.zf-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(248, 246, 242, 0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(223, 227, 225, 0.7);
}

.zf-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  gap: var(--space-4);
}

/* Brand */

.zf-header__brand {
  display: flex;
  align-items: center;
  min-width: 0;
}

.zf-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
}

.zf-header__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.25rem;
  letter-spacing: 0.06em;
  background: radial-gradient(circle at 30% 20%, rgba(217, 199, 223, 0.85), rgba(138, 165, 139, 0.9));
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

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

.zf-header__title {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.zf-header__subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* Navigation */

.zf-header__nav {
  margin-left: auto;
}

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

.zf-header__nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0;
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
}

.zf-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(217, 199, 223, 0.2), rgba(138, 165, 139, 0.8));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-normal);
}

.zf-header__nav-link:hover::after,
.zf-header__nav-link:focus-visible::after {
  transform: scaleX(1);
}

.zf-header__nav-item--cta .zf-header__nav-link--button {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(138, 165, 139, 0.32);
  background: linear-gradient(120deg, rgba(138, 165, 139, 0.08), rgba(217, 199, 223, 0.04));
  font-size: var(--font-size-xs);
}

.zf-header__nav-item--cta .zf-header__nav-link--button:hover {
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-sm);
}

/* Mobile toggle */

.zf-header__toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(163, 172, 167, 0.5);
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--color-text);
}

.zf-header__toggle-box {
  position: relative;
  width: 18px;
  height: 14px;
  display: inline-flex;
  flex-direction: column;
  justify-content: space-between;
}

.zf-header__toggle-line {
  width: 100%;
  height: 2px;
  border-radius: 999px;
  background-color: var(--color-text);
  transition: transform var(--transition-normal), opacity var(--transition-normal), top var(--transition-normal), bottom var(--transition-normal);
}

.zf-header__toggle-text {
  font-size: var(--font-size-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* Toggle active state */

.zf-header--menu-open .zf-header__toggle-line:nth-child(1) {
  transform: translateY(6px) rotate(40deg);
}

.zf-header--menu-open .zf-header__toggle-line:nth-child(2) {
  transform: translateY(-6px) rotate(-40deg);
}

/* Responsive layout */

@media (max-width: 768px) {
  .zf-header__inner {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
  }

  .zf-header__subtitle {
    display: none;
  }

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

  .zf-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: rgba(248, 246, 242, 0.98);
    border-bottom: 1px solid rgba(223, 227, 225, 0.9);
    box-shadow: 0 18px 60px rgba(20, 24, 22, 0.16);
    transform-origin: top;
  }

  .zf-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: var(--space-3) var(--space-4) var(--space-4);
  }

  .zf-header__nav-item {
    width: 100%;
  }

  .zf-header__nav-link,
  .zf-header__nav-item--cta .zf-header__nav-link--button {
    width: 100%;
    justify-content: space-between;
    padding: 0.7rem 0;
  }

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

  .zf-header__nav-item + .zf-header__nav-item {
    border-top: 1px solid rgba(223, 227, 225, 0.7);
  }

  .zf-header__nav-item--cta .zf-header__nav-link--button {
    margin-top: var(--space-2);
    border-radius: var(--radius-md);
  }

  /* JS-enhanced hidden state */
  .zf-header__nav[hidden] {
    display: none;
  }
}

@media (min-width: 769px) {
  .zf-header__nav {
    position: static;
  }
}

/* Utility class when JS is enabled but menu should be collapsed on mobile */

.js-enabled .zf-header__nav {
  /* desktop: unchanged; mobile hidden via [hidden] attribute */
}