.auth-page {
  display: grid;
  min-height: 100vh;
  place-items: center;
}

.auth-box,
.admin-page {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  margin: 2rem auto;
  max-width: 78rem;
  padding: 1.5rem;
}

.auth-box {
  width: min(26rem, calc(100vw - 2rem));
}

.form-stack,
.admin-form {
  display: grid;
  gap: 0.8rem;
}

.inline-form {
  display: flex;
  gap: 0.5rem;
  margin: 0 0 1rem;
}

.form-stack label,
.admin-form label {
  color: var(--color-muted);
  display: grid;
  gap: 0.25rem;
}

.form-error {
  background: var(--color-danger-soft);
  border: 1px solid var(--color-danger-border);
  color: var(--color-danger);
  padding: 0.65rem;
}

.admin-layout {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: minmax(0, 1fr) 22rem;
}

.admin-layout > * {
  min-width: 0;
}

.single-column {
  grid-template-columns: 1fr;
}

.muted {
  color: var(--color-muted);
}

.user-table {
  border-collapse: collapse;
  width: 100%;
}

.user-table th,
.user-table td {
  border-bottom: 1px solid var(--color-border);
  padding: 0.55rem;
  text-align: left;
  vertical-align: top;
}

.user-table details pre {
  max-height: 18rem;
  max-width: 46rem;
  overflow: auto;
  white-space: pre-wrap;
}

.user-table form {
  margin: 0 0 0.35rem;
}

.workflow-form {
  display: grid;
  gap: 0.35rem;
  min-width: 12rem;
}

.compare-form {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto;
  margin-bottom: 1rem;
}

.compare-answer {
  max-width: none;
  white-space: pre-wrap;
}

.version-diff {
  border: 1px solid var(--color-border);
  margin: 0 0 1rem;
  padding: 1rem;
}

.version-diff pre {
  background: var(--color-code-bg);
  color: var(--color-code-text);
  max-height: 34rem;
  overflow: auto;
  padding: 1rem;
  white-space: pre-wrap;
}

.diff-word-added {
  background: color-mix(in srgb, var(--color-accent) 34%, transparent);
}

.diff-word-removed {
  background: color-mix(in srgb, var(--color-danger) 34%, transparent);
}

@media (max-width: 760px) {
  .admin-page {
    margin: 1rem;
    padding: 1rem;
  }

  .admin-layout {
    grid-template-columns: 1fr;
  }

  .user-table {
    display: block;
    max-width: 100%;
    overflow-x: auto;
  }

  .compare-form,
  .inline-form {
    display: grid;
    grid-template-columns: 1fr;
  }
}