.field-message,
.admin-field-error {
  min-height: calc(var(--type-helper-size) * var(--type-helper-line-height));
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--type-helper-size);
  line-height: var(--type-helper-line-height);
}

.login-status {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--type-helper-size);
  line-height: var(--type-helper-line-height);
}

.field-message:empty,
.admin-field-error[hidden] {
  display: block !important;
  visibility: hidden;
}

.login-status:empty {
  display: none;
}

.field-message--error,
.admin-field-error,
.login-status[data-state="error"] {
  color: var(--color-error);
}

.field-message--success {
  color: var(--color-success);
}

.profile-banner {
  border-left: 3px solid var(--profile-banner-rule, var(--border-1));
}

.profile-banner[data-type="error"] {
  --profile-banner-rule: var(--color-error);
}

.empty-state {
  margin: 0;
  color: var(--text-3);
  font-family: var(--font-body);
  font-size: 0.94rem;
  line-height: 1.6;
}

.empty-state--inline {
  width: fit-content;
}

.empty-state--list {
  padding: 28px 0;
  color: var(--text-2);
}

.empty-state--compact {
  padding: 18px 0;
}

.empty-state--indented {
  padding-block: var(--empty-state-padding-block, 12px);
  padding-right: var(--empty-state-padding-inline, 0);
  padding-left: var(--empty-state-padding-left, var(--empty-state-padding-inline, 0));
}

.empty-state--panel {
  width: fit-content;
  padding: 12px 14px;
  border: 1px solid var(--border-1);
  border-radius: var(--radius-sm);
  background: var(--surface-1);
}

.empty-state--table {
  padding: 28px 14px;
}

.empty-state--section {
  display: grid;
  max-width: 760px;
  gap: 18px;
  padding-top: 18px;
  border-top: 3px solid var(--accent);
  color: var(--text-1);
}

.feedback-loading {
  min-height: 52px;
  color: var(--text-3);
}

.authoring-markdown-broken {
  margin: 0 0 1rem;
  padding: 0.75rem;
  overflow-x: auto;
  border: 1px solid var(--color-error);
  color: var(--color-error);
  font-family: var(--font-mono);
  font-size: 0.9em;
  line-height: 1.55;
  white-space: pre-wrap;
}

.authoring-markdown-center {
  text-align: center;
}

/* Rendered authoring prose must not widen its reading column for one long token. */
.prose,
.reference-markdown {
  overflow-wrap: anywhere;
}

/* Keep authored list items readable while tightening only the whitespace around a list. */
.prose p:has(+ ul),
.prose p:has(+ ol),
.reference-markdown p:has(+ ul),
.reference-markdown p:has(+ ol) {
  margin-bottom: 3px;
}

.prose ul,
.prose ol,
.reference-markdown ul,
.reference-markdown ol {
  margin-top: 0;
  margin-bottom: 3px;
}

/* Authored Markdown tables share one presentation on Solutions and References. */
.authoring-table {
  width: max-content;
  max-width: 100%;
  margin: 0 auto 1.25rem;
  border: 1px solid var(--border-subtle);
  border-collapse: collapse;
  font-size: 0.98rem;
}

.authoring-table th,
.authoring-table td {
  box-sizing: border-box;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--border-subtle);
  text-align: center;
  vertical-align: top;
  line-height: 1.55;
}

.authoring-table th {
  font-family: var(--font-display);
  font-size: 0.92rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text-2);
  background: var(--surface-2);
}

.authoring-table td .katex,
.authoring-table th .katex {
  font-size: 1em;
}

/* Math has its own layout and must not be split as prose. */
.prose .katex,
.prose .katex-display,
.reference-markdown .katex,
.reference-markdown .katex-display {
  overflow-wrap: normal;
}

.feedback-loading::before {
  content: "";
  display: inline-block;
  width: 16px;
  height: 16px;
  margin-right: 10px;
  border: 2px solid var(--border-1);
  border-top-color: var(--accent);
  border-radius: 50%;
  vertical-align: -3px;
  animation: feedback-spinner-rotate 720ms linear infinite;
}

tr.feedback-placeholder-row td,
.feedback-placeholder-row {
  height: 52px;
  min-height: 52px;
}

@keyframes feedback-spinner-rotate {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  .feedback-loading::before {
    animation: none;
    border-color: var(--border-1);
    border-right-color: var(--accent);
  }
}