/* Header styles for Zen Ruimte Flow */

.zr-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--color-background) 82%, #ffffff 18%);
  border-bottom: 1px solid rgba(148, 163, 184, 0.28);
}

@supports not (backdrop-filter: blur(14px)) {
  .zr-header {
    background: var(--color-background);
  }
}

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

/* Brand */

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

.zr-header__logo-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.zr-header__logo-mark {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 20%, #ffffff 0, #e0efe9 35%, #7fb6a4 100%);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.zr-header__logo-mark::after {
  content: "";
  position: absolute;
  inset: 28%;
  border-radius: inherit;
  background: conic-gradient(from 160deg, rgba(255,255,255,0.85), rgba(255,255,255,0));
}

.zr-header__title {
  font-family: var(--font-serif);
  font-size: var(--font-size-lg);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text);
  white-space: nowrap;
}

/* Nav base */

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

.zr-header__nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.zr-header__nav-link {
  font-size: var(--font-size-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  text-decoration: none;
  position: relative;
  padding-block: 0.25rem;
}

.zr-header__nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.15rem;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary-soft), var(--color-primary));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-normal);
}

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

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

.zr-header__nav-item--cta .zr-header__nav-link--cta {
  padding-inline: 1rem;
  padding-block: 0.4rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-primary-soft);
  background: var(--color-primary);
  color: #ffffff;
  box-shadow: var(--shadow-xs);
}

.zr-header__nav-item--cta .zr-header__nav-link--cta:hover,
.zr-header__nav-item--cta .zr-header__nav-link--cta:focus-visible {
  background: var(--color-primary-strong);
  color: #ffffff;
}

.zr-header__nav-item--cta .zr-header__nav-link--cta::after {
  display: none;
}

/* Mobile toggle */

.zr-header__toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--color-gray-200);
  background: rgba(255, 255, 255, 0.8);
  cursor: pointer;
  color: var(--color-text);
}

.zr-header__toggle:focus-visible {
  outline: 2px solid var(--color-primary-strong);
  outline-offset: 3px;
}

.zr-header__toggle-icon {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
}

.zr-header__toggle-line {
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: var(--color-text);
  transition: transform var(--transition-normal), opacity var(--transition-normal);
}

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

/* Toggle state */

.zr-header--menu-open .zr-header__toggle-line:first-child {
  transform: translateY(3px) rotate(45deg);
}

.zr-header--menu-open .zr-header__toggle-line:last-child {
  transform: translateY(-3px) rotate(-45deg);
}

/* Responsive layout */

@media (max-width: 768px) {
  .zr-header__inner {
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
  }

  .zr-header__title {
    font-size: 1rem;
  }

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

  .zr-header__nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: linear-gradient(180deg, rgba(247, 246, 242, 0.98), rgba(255, 255, 255, 0.98));
    border-bottom: 1px solid rgba(148, 163, 184, 0.28);
    transform-origin: top;
    transform: scaleY(0.9);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal), transform var(--transition-normal);
  }

  .zr-header__nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-4) var(--space-5);
  }

  .zr-header__nav-link {
    width: 100%;
    padding-block: 0.35rem;
  }

  .zr-header__nav-item--cta .zr-header__nav-link--cta {
    width: 100%;
    text-align: center;
  }

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

@media (prefers-reduced-motion: reduce) {
  .zr-header__nav,
  .zr-header__toggle-line {
    transition: none;
  }
}