/* =========================
   Global Docs Topbar
========================= */

.site-topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  margin: -24px clamp(-72px, -5vw, -20px) 24px;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 78%, transparent);
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--panel) 94%, transparent),
    color-mix(in srgb, var(--panel) 84%, transparent)
  );
  backdrop-filter: blur(16px);
}

.site-topbar-inner {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 22px;
  min-height: 64px;
  padding: 0 clamp(20px, 5vw, 72px);
}

.site-topbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.topbar-brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-width: 0;
  color: var(--ink);
  font-weight: 900;
}

.topbar-logo-mark {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 14px;
  line-height: 1;
  box-shadow: 0 8px 18px color-mix(in srgb, var(--accent) 26%, transparent);
}

.topbar-brand strong {
  overflow: hidden;
  font-size: 15px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.topbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 0;
}

.topbar-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 64px;
  color: var(--muted);
  padding: 0 12px;
  font-size: 13px;
  font-weight: 800;
}

.topbar-nav a:hover,
.topbar-nav a.active {
  color: var(--ink);
}

.topbar-nav a.active::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: -1px;
  height: 2px;
  border-radius: 999px;
  background: var(--accent);
}

.topbar-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 9px;
  min-width: 0;
}

.topbar-search {
  display: grid;
  grid-template-columns: auto minmax(130px, 220px) auto;
  align-items: center;
  gap: 8px;
  height: 38px;
  border: 1px solid color-mix(in srgb, var(--line) 84%, transparent);
  border-radius: 10px;
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  padding: 0 8px 0 11px;
}

.topbar-search span {
  color: var(--muted);
  font-size: 14px;
}

.topbar-search input {
  width: 100%;
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--ink);
  outline: none;
  font-size: 13px;
}

.topbar-search input::placeholder {
  color: color-mix(in srgb, var(--muted) 72%, transparent);
}

.topbar-search kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 30px;
  height: 20px;
  border: 1px solid color-mix(in srgb, var(--line) 82%, transparent);
  border-radius: 6px;
  background: color-mix(in srgb, var(--bg) 76%, var(--panel));
  color: var(--muted);
  padding: 0 6px;
  font-size: 10px;
  font-family: inherit;
  font-weight: 800;
}

.topbar-github,
.topbar-start {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  border-radius: 10px;
  padding: 0 13px;
  font-size: 13px;
  font-weight: 850;
  white-space: nowrap;
}

.topbar-github {
  border: 1px solid color-mix(in srgb, var(--line) 84%, transparent);
  background: var(--panel);
  color: var(--ink);
}

.topbar-github::before {
  content: "●";
  margin-right: 7px;
  color: var(--ink);
  font-size: 9px;
}

.topbar-github:hover {
  border-color: var(--accent);
}

.topbar-start {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 20px color-mix(in srgb, var(--accent) 22%, transparent);
}

.topbar-start:hover {
  background: var(--accent-dark);
}

.topbar-theme {
  display: inline-flex;
  align-items: center;
  height: 38px;
  border: 1px solid color-mix(in srgb, var(--line) 84%, transparent);
  border-radius: 10px;
  background: var(--panel);
  padding: 3px;
}

.topbar-theme .theme-button {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.topbar-theme .theme-button:hover,
.topbar-theme .theme-button.active {
  background: color-mix(in srgb, var(--accent) 10%, var(--panel));
  color: var(--accent-dark);
}

@media (max-width: 1180px) {
  .site-topbar-inner {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .topbar-nav {
    display: none;
  }

  .topbar-actions {
    min-width: 0;
  }

  .topbar-search {
    grid-template-columns: auto minmax(100px, 1fr);
  }

  .topbar-search kbd {
    display: none;
  }
}

@media (max-width: 760px) {
  .site-topbar {
    margin-bottom: 18px;
  }

  .site-topbar-inner {
    min-height: 58px;
    gap: 10px;
  }

  .topbar-brand strong {
    max-width: 130px;
  }

  .topbar-search {
    display: none;
  }

  .topbar-github {
    display: none;
  }

  .topbar-start {
    height: 34px;
    padding: 0 11px;
    font-size: 12px;
  }

  .topbar-theme {
    height: 34px;
  }

  .topbar-theme .theme-button {
    width: 27px;
    height: 27px;
  }
}

.topbar-account {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 38px;
  border: 1px solid color-mix(in srgb, var(--line) 84%, transparent);
  border-radius: 10px;
  background: var(--panel);
  color: var(--ink);
  padding: 0 11px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 850;
  white-space: nowrap;
}

.topbar-account:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 7%, var(--panel));
}

.topbar-account.login {
  border-color: color-mix(in srgb, var(--accent) 36%, var(--line));
  color: var(--accent-dark);
}

.topbar-account-avatar {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 14%, var(--panel));
  color: var(--accent-dark);
  font-size: 12px;
  font-weight: 900;
}

.topbar-account-name {
  max-width: 88px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 760px) {
  .topbar-account {
    height: 34px;
    padding: 0 9px;
    font-size: 12px;
  }

  .topbar-account-name {
    display: none;
  }

  .topbar-account-avatar {
    width: 23px;
    height: 23px;
  }
}