/* The original disclosure remains available beside an always-visible route list. */
.topbar {
  position: relative;
  justify-content: flex-start;
  gap: 12px;
}

.navigation-menu {
  position: relative;
  margin-left: auto;
}

.nav-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  color: var(--ink);
  font: 700 15px "Microsoft YaHei UI", "PingFang SC", system-ui, sans-serif;
  cursor: pointer;
  transition: background .18s ease-out, border-color .18s ease-out, color .18s ease-out;
}

.nav-trigger-icon {
  font-size: 18px;
  line-height: 1;
}

.nav-trigger:hover,
.navigation-menu[data-open="true"] .nav-trigger {
  border-color: var(--line);
  background: var(--surface);
  color: var(--clay);
}

.nav-trigger:focus-visible,
.persistent-navigation a:focus-visible,
.navigation-panel a:focus-visible,
.navigation-panel .text-button:focus-visible {
  outline: 3px solid rgba(27, 95, 167, .24);
  outline-offset: 2px;
}

.navigation-panel {
  position: absolute;
  top: 100%;
  left: 0;
  display: grid;
  width: max-content;
  min-width: 0;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--surface);
  box-shadow: 0 16px 36px rgba(26, 49, 79, .14);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-4px) scale(.98);
  transform-origin: top left;
  transition: opacity .22s cubic-bezier(.16, 1, .3, 1), transform .22s cubic-bezier(.16, 1, .3, 1), visibility 0s linear .22s;
}

.topbar .navigation-panel {
  display: grid;
  gap: 0;
  flex-wrap: nowrap;
  justify-content: initial;
}

.navigation-menu[data-animated="true"] .navigation-panel {
  transition: none;
}

.navigation-menu:hover .navigation-panel,
.navigation-menu:focus-within .navigation-panel,
.navigation-menu[data-open="true"] .navigation-panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
  transition-delay: 0s;
}

.navigation-panel a,
.navigation-panel .text-button {
  display: flex;
  align-items: center;
  min-height: 34px;
  width: 100%;
  padding: 0 10px;
  border: 0;
  border-radius: 7px;
  background: none;
  color: var(--ink);
  font: 600 13px "Microsoft YaHei UI", "PingFang SC", system-ui, sans-serif;
  letter-spacing: 0;
  text-align: left;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
}

.navigation-panel a:hover,
.navigation-panel .text-button:hover {
  background: #eef4fb;
  color: var(--clay);
}

.navigation-panel .nav-logout {
  margin-top: 4px;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.persistent-navigation {
  position: absolute;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 3px;
  min-width: 0;
  transform: translateX(-50%);
}

.persistent-navigation a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 54px;
  padding: 0 17px;
  color: var(--ink-soft, var(--ink));
  font: 750 16px "Microsoft YaHei UI", "PingFang SC", system-ui, sans-serif;
  letter-spacing: .01em;
  text-decoration: none;
  white-space: nowrap;
  transition: color .18s ease-out, background .18s ease-out;
}

.persistent-navigation a::after {
  position: absolute;
  right: 17px;
  bottom: 8px;
  left: 17px;
  height: 2px;
  content: "";
  background: currentColor;
  opacity: 0;
  transform: scaleX(.45);
  transform-origin: center;
  transition: opacity .18s ease-out, transform .18s ease-out;
}

.persistent-navigation a:hover,
.persistent-navigation a:focus-visible {
  color: var(--terracotta, var(--clay));
  background: color-mix(in srgb, var(--terracotta, var(--clay)) 7%, transparent);
}

.persistent-navigation a[aria-current="page"] {
  color: var(--ink);
}

.persistent-navigation a:hover::after,
.persistent-navigation a:focus-visible::after,
.persistent-navigation a[aria-current="page"]::after {
  opacity: 1;
  transform: scaleX(1);
}

@media (max-width: 900px) {
  .topbar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0 10px;
    height: auto;
    min-height: 0;
    padding: 10px 20px 0;
  }

  .wordmark {
    min-height: 44px;
  }

  .navigation-menu {
    justify-self: end;
    margin-left: 0;
  }

  .persistent-navigation {
    position: static;
    grid-column: 1 / -1;
    width: 100%;
    gap: 2px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    padding: 3px 0 7px;
    scrollbar-width: thin;
    transform: none;
  }

  .persistent-navigation a {
    flex: 0 0 auto;
    min-height: 52px;
    padding-inline: 16px;
  }
}

@media (max-width: 450px) {
  .topbar {
    padding-inline: 17px;
  }

  .nav-trigger {
    padding-inline: 8px;
  }

  .persistent-navigation a {
    padding-inline: 14px;
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nav-trigger,
  .persistent-navigation a,
  .persistent-navigation a::after,
  .navigation-panel {
    transition: none;
  }
}