@layer modules {
/* navigation.css — Top navigation bar (three-zone grid) */

.page-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  background: var(--color-canvas);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.page-header__inner {
  max-width: 80rem;
  margin-inline: auto;
  padding-inline: 1rem;
}

@media (min-width: 640px) {
  .page-header__inner {
    padding-inline: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .page-header__inner {
    padding-inline: 2rem;
  }
}

.page-header__row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 4rem;
}

/* --- Zones --- */
.nav__zone {
  display: flex;
  align-items: center;
}

.nav__zone--start {
  justify-self: start;
}

.nav__zone--center {
  justify-self: center;
}

.nav__zone--end {
  justify-self: end;
  gap: 0.75rem;
}

/* --- Search pill (left zone) --- */
.nav__search-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  background: var(--color-canvas-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--color-ink-subtle);
  transition: border-color var(--duration-fast) var(--ease-out);
}

.nav__search-pill:hover {
  border-color: var(--color-border-strong);
}

.nav__search-pill:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.nav__search-pill-text {
  display: none;
}

.nav__search-pill-kbd {
  display: none;
  margin-left: 0.5rem;
  padding: 0.1rem 0.4rem;
  background: var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--color-ink-subtle);
}

@media (min-width: 640px) {
  .nav__search-pill-text {
    display: inline;
  }
  .nav__search-pill-kbd {
    display: inline;
  }
}

/* --- Brand / Logo (center zone) --- */
.nav__brand {
  display: flex;
  align-items: center;
}

.nav__brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  transition: transform 0.3s ease;
}

.nav__brand-link:hover {
  transform: scale(1.05);
  text-decoration: none;
}

.nav__brand-icon {
  width: 1.75rem;
  height: 1.75rem;
  color: var(--color-ink-muted);
  transition: transform 0.3s ease;
}

.nav__brand-link:hover .nav__brand-icon {
  transform: rotate(12deg);
}

.nav__brand-text {
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--color-ink);
}

/* --- Menu trigger chevron --- */
.nav__menu-trigger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 1.4rem;
  height: 1.4rem;
  margin-left: 0.35rem;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-ink-subtle);
  cursor: pointer;
  transition: border-color var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}

.nav__menu-trigger:hover {
  border-color: var(--color-border-strong);
  color: var(--color-ink);
}

.nav__menu-trigger:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

/* --- Dark mode toggle --- */
.dark-mode-toggle {
  padding: 0.5rem;
  border-radius: var(--radius-full);
  background: var(--color-canvas-raised);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: background 0.2s ease, transform 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dark-mode-toggle:hover {
  background: var(--color-border);
  transform: scale(1.1);
}

.dark-mode-toggle:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

/* --- Avatar button --- */
.avatar-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-lg);
  color: oklch(1 0 0);
  font-size: var(--text-sm);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  border: none;
  transition: box-shadow var(--duration-snap) var(--ease-out), transform 0.2s ease;
}

.avatar-btn:hover {
  box-shadow: 0 0 0 2px var(--color-border-strong);
  transform: scale(1.05);
}

.avatar-btn:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

} /* end @layer modules */


@layer components {
/* --- Popup (dialog) base --- */
.popup {
  margin: auto;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-canvas);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  max-height: 70dvh;
}

.popup--animated {
  opacity: 0;
  transform: scale(0.2);
  transition: opacity 150ms var(--ease-out), transform 150ms var(--ease-out);
}

.popup--animated[open] {
  opacity: 1;
  transform: scale(1);
}

@starting-style {
  .popup--animated[open] {
    opacity: 0;
    transform: scale(0.2);
  }
}

.popup--animated::backdrop {
  background: oklch(0.10 0.01 245 / 0.6);
  transition: background 150ms;
}

@starting-style {
  .popup--animated::backdrop {
    background: oklch(0.10 0.01 245 / 0);
  }
}

/* --- Menu popup --- */
.nav__menu {
  width: min(28rem, calc(100vw - 2rem));
}

.nav__menu-loading {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
}

/* --- Popup sections --- */
.popup__section {
  padding: 0.5rem;
}

.popup__section-title {
  padding: 0.35rem 0.75rem;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
  font-weight: 600;
}

.popup__item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-ink);
  font-size: var(--text-sm);
  transition: background var(--duration-fast) var(--ease-out);
}

.popup__item:hover {
  background: var(--color-canvas-alt);
  text-decoration: none;
}

.popup__item:focus-visible {
  outline: var(--focus-ring);
  outline-offset: -2px;
}

.popup__item .icon {
  opacity: 0.6;
  flex-shrink: 0;
}

.popup__divider {
  height: 1px;
  background: var(--color-border);
  margin: 0 0.5rem;
}

/* --- Search popup --- */
.nav__search {
  width: min(32rem, calc(100vw - 2rem));
}

.nav__search-input-wrapper {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

.nav__search-input-wrapper .icon {
  opacity: 0.5;
  flex-shrink: 0;
}

.nav__search-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: var(--text-base);
  color: var(--color-ink);
  outline: none;
}

.nav__search-input::placeholder {
  color: var(--color-ink-muted);
}

.nav__search-esc {
  padding: 0.15rem 0.5rem;
  background: var(--color-canvas-alt);
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  font-family: var(--font-mono);
  color: var(--color-ink-muted);
}

.nav__search-results {
  max-height: 20rem;
  overflow-y: auto;
  padding: 0.5rem;
}

.nav__search-count {
  padding: 0.25rem 0.75rem;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-ink-muted);
  font-weight: 600;
}

.nav__search-result {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-ink);
  font-size: var(--text-sm);
  transition: background var(--duration-fast) var(--ease-out);
}

.nav__search-result:hover {
  background: var(--color-canvas-alt);
  text-decoration: none;
}

.nav__search-result[aria-selected="true"] {
  background: var(--color-primary-soft);
}

.nav__search-result-content {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  flex: 1;
  min-width: 0;
}

.nav__search-result-title {
  font-weight: 500;
}

.nav__search-result-title mark {
  background: var(--color-primary-soft);
  color: inherit;
  padding: 0 0.1rem;
  border-radius: 2px;
}

.nav__search-result-description {
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav__search-badge {
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  flex-shrink: 0;
}

.nav__search-badge--published {
  background: oklch(0.93 0.04 145);
  color: oklch(0.40 0.15 145);
}

[data-theme="dark"] .nav__search-badge--published {
  background: oklch(0.30 0.08 145);
  color: oklch(0.70 0.16 145);
}

.nav__search-badge--draft {
  background: var(--color-canvas-alt);
  color: var(--color-ink-muted);
}

.nav__search-hint,
.nav__search-empty,
.nav__search-loading {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
}

.nav__search-footer {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.5rem 0.75rem;
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.nav__search-footer kbd {
  padding: 0.1rem 0.3rem;
  background: var(--color-canvas-alt);
  border-radius: 3px;
  font-family: var(--font-mono);
}

} /* end @layer components */