.valid.modified:not([type="checkbox"]) {
  outline: 1px solid #26b050;
}

.invalid {
  outline: 1px solid red;
}

.validation-message {
  color: red;
}

#blazor-error-ui {
  color-scheme: light only;
  background: lightyellow;
  bottom: 0;
  box-shadow: 0 -1px 2px rgb(0 0 0 / 20%);
  box-sizing: border-box;
  display: none;
  left: 0;
  padding: 0.6rem 1.25rem 0.7rem;
  position: fixed;
  width: 100%;
  z-index: 1000;
}

#blazor-error-ui .dismiss {
  cursor: pointer;
  position: absolute;
  right: 0.75rem;
  top: 0.5rem;
}

.blazor-error-boundary {
  background:
    url("data:image/svg+xml;base64,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")
      no-repeat 1rem/1.8rem,
    #b32121;
  padding: 1rem 1rem 1rem 3.7rem;
  color: white;
}

.blazor-error-boundary::after {
  content: "An error has occurred.";
}

.loading-progress {
  position: absolute;
  display: block;
  width: 8rem;
  height: 8rem;
  inset: 20vh 0 auto;
  margin: 0 auto;
}

.loading-progress circle {
  fill: none;
  stroke: #e0e0e0;
  stroke-width: 0.6rem;
  transform-origin: 50% 50%;
  transform: rotate(-90deg);
}

.loading-progress circle:last-child {
  stroke: #1b6ec2;
  stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
  transition: stroke-dasharray 0.05s ease-in-out;
}

.loading-progress-text {
  position: absolute;
  text-align: center;
  font-weight: bold;
  inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

.loading-progress-text::after {
  content: var(--blazor-load-percentage-text, "Loading");
}

/* ── Theme tokens ────────────────────────────────── */
:root {
  color-scheme: light;

  --bg: #fff;
  --fg: #1a1a1a;
  --muted: #555;
  --border: #d0d0d0;
  --error-bg: #fdecea;
  --error-fg: #611a15;
  --error-border: #f5c6cb;
  --code-fg: #c02d76;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;

    --bg: #1e1e1e;
    --fg: #d4d4d4;
    --muted: #9d9d9d;
    --border: #3e3e3e;
    --error-bg: #2d1515;
    --error-fg: #f87171;
    --error-border: #7f2020;
    --code-fg: #f472b6;
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;

  --bg: #1e1e1e;
  --fg: #d4d4d4;
  --muted: #9d9d9d;
  --border: #3e3e3e;
  --error-bg: #2d1515;
  --error-fg: #f87171;
  --error-border: #7f2020;
  --code-fg: #f472b6;
}

code {
  color: var(--code-fg);
}

.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
  text-align: start;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family:
    -apple-system,
    "Segoe UI",
    Roboto,
    Helvetica,
    Arial,
    sans-serif;
  margin: 1rem 1.5rem;
}

header h1 {
  margin-bottom: 0.25rem;
}

header p {
  color: var(--muted);
  max-width: 60em;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1rem 0;
}

.toolbar button {
  padding: 0.4rem 1rem;
  cursor: pointer;
}

.toolbar-theme {
  margin-left: auto;
}

.error {
  background: var(--error-bg);
  color: var(--error-fg);
  border: 1px solid var(--error-border);
  padding: 0.75rem 1rem;
  white-space: pre-wrap;
  border-radius: 4px;
}

.panes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.pane h2,
.pane-diff h2 {
  font-size: 1rem;
  margin: 0 0 0.4rem;
}

.editor-container {
  border: 1px solid var(--border);
  height: 40vh;
  min-height: 120px;
  resize: vertical;
  overflow: hidden;
}

.editor-container-diff {
  height: 55vh;
  min-height: 120px;
}

#rules-editor,
#input-editor,
#diff-editor {
  height: 100%;
}

.pane-diff {
  margin-bottom: 1rem;
}

@media (width <= 900px) {
  .panes {
    grid-template-columns: 1fr;
  }
}