/* Regex Tester: styles for this tool only. Shared styles live in /tools/shared/tools.css. */

:root {
  --rx-hit-a: rgba(74, 168, 255, 0.32);
  --rx-hit-b: rgba(255, 190, 60, 0.38);
  --rx-hit-line: #2a86d8;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --rx-hit-a: rgba(74, 168, 255, 0.34);
    --rx-hit-b: rgba(255, 190, 60, 0.3);
    --rx-hit-line: #6cb8ff;
  }
}
:root[data-theme="dark"] {
  --rx-hit-a: rgba(74, 168, 255, 0.34);
  --rx-hit-b: rgba(255, 190, 60, 0.3);
  --rx-hit-line: #6cb8ff;
}

html,
body {
  overflow-x: clip;
}
.rx-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
}
.workspace {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-8) var(--space-4) var(--space-16);
}
.rx-noscript {
  max-width: 880px;
  color: var(--color-text);
}
.rx-card {
  width: 100%;
  max-width: 880px;
  padding: var(--space-6);
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
}

/* Pattern row */
.rx-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-2) var(--space-4);
}
.rx-head > .field-label {
  padding-top: 0;
}
.rx-presets {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
}
.rx-presets .field-label {
  padding: 0;
}
.rx-presets .dropdown {
  width: 14rem;
}
.rx-pattern-field {
  margin-top: var(--space-1);
}
.rx-pattern-field input {
  font-family: var(--font-mono);
  font-size: var(--text-md);
}
.rx-pattern-field span {
  margin: 0 var(--space-1);
  font-family: var(--font-mono);
  font-size: var(--text-md);
  white-space: nowrap;
}
.rx-pattern-field span b {
  font-weight: var(--weight-regular);
  color: var(--color-accent);
}
.rx-pattern-field.is-invalid,
.rx-pattern-field.is-invalid:focus-within {
  border-color: var(--color-danger);
  box-shadow: 0 0 0 1px var(--color-danger);
}
.rx-error {
  margin: var(--space-2) var(--space-1) 0;
  font-size: var(--text-sm);
  line-height: 1.4;
  color: var(--color-danger);
  overflow-wrap: anywhere;
}
.rx-error[hidden] {
  display: none;
}

/* Flags */
.rx-flags {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 var(--space-4);
  margin: var(--space-2) 0 var(--space-1);
  padding: 0;
  border: 0;
}
.rx-flags code {
  font-family: var(--font-mono);
  color: var(--color-ink);
}
.rx-flags .check-row span {
  font-size: var(--text-sm);
  color: var(--color-text);
}
.rx-page .info-note {
  margin: 0 var(--space-1);
}
.rx-text-label {
  margin-top: var(--space-3);
}

/* Test string: the textarea sits on top of a copy of the text with the matches wrapped in <mark> */
.rx-editor {
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--color-field);
}
.rx-editor:hover {
  background: var(--color-field-hover);
}
.rx-backdrop,
.rx-text {
  box-sizing: border-box;
  width: 100%;
  height: 13rem;
  margin: 0;
  padding: var(--space-3);
  border: 1px solid transparent;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  line-height: 1.6;
  letter-spacing: normal;
  tab-size: 2;
  white-space: pre-wrap;
  overflow-wrap: break-word;
  word-break: normal;
  overflow: auto;
  scrollbar-gutter: stable;
}
.rx-backdrop {
  position: absolute;
  inset: 0;
  height: auto;
  color: transparent;
  pointer-events: none;
  scrollbar-color: transparent transparent;
}
.rx-backdrop::-webkit-scrollbar {
  background: transparent;
}
.rx-backdrop::-webkit-scrollbar-thumb {
  background: transparent;
}
.rx-text {
  position: relative;
  display: block;
  resize: vertical;
  min-height: 8rem;
  background: transparent;
}
.rx-text:hover {
  background: transparent;
}
.rx-editor:has(.rx-text:focus-visible) {
  box-shadow: 0 0 0 1px var(--color-accent);
}
.rx-text:focus-visible {
  border-color: var(--color-accent);
}
.rx-backdrop mark {
  padding: 0;
  border-radius: 2px;
  color: transparent;
  background: var(--rx-hit-a);
}
.rx-backdrop mark.b {
  background: var(--rx-hit-b);
}
.rx-backdrop mark.zero {
  display: inline;
  margin-left: -2px;
  border-left: 2px solid var(--rx-hit-line);
  border-radius: 0;
  background: transparent;
}

/* Results */
.rx-results-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}
.rx-status {
  flex: 1 1 12rem;
  min-width: 0;
  font-size: var(--text-md);
  color: var(--color-ink);
}
.rx-status.is-warn {
  color: var(--color-warning);
}
.rx-status.is-error {
  color: var(--color-danger);
}
.rx-mode {
  width: 12rem;
}
.rx-replace {
  margin-top: var(--space-4);
}
.rx-replace[hidden] {
  display: none;
}
.rx-replace .field-label {
  padding-top: 0;
}
.rx-replace .field input {
  font-family: var(--font-mono);
}
.rx-out-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  margin-top: var(--space-3);
}
.rx-out-head .field-label {
  padding-top: 0;
}
.rx-replaced {
  max-height: 14rem;
  min-height: 3.25rem;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-size: var(--text-sm);
}
.rx-matches {
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.rx-matches:empty {
  display: none;
}
.rx-match {
  padding: var(--space-3);
  border-radius: var(--radius-lg);
  background: var(--color-field);
}
.rx-match-top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-1) var(--space-3);
}
.rx-match-n {
  font-size: var(--text-xs);
  color: var(--color-muted);
}
.rx-match-pos {
  font-size: var(--text-xs);
  color: var(--color-muted);
  font-variant-numeric: tabular-nums;
}
.rx-val {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.rx-val.is-none {
  font-family: inherit;
  font-style: italic;
  color: var(--color-muted);
}
.rx-groups {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  gap: var(--space-1) var(--space-3);
  margin: var(--space-2) 0 0;
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-border);
}
.rx-groups dt {
  font-size: var(--text-xs);
  color: var(--color-muted);
  line-height: 1.7;
}
.rx-groups dd {
  margin: 0;
  min-width: 0;
}
.rx-empty-state {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-muted);
}
.rx-empty-state:empty {
  display: none;
}
.rx-more {
  font-size: var(--text-sm);
  color: var(--color-muted);
}

/* About and FAQ */

@media (max-width: 600px) {
  .workspace {
    padding-top: var(--space-4);
  }
  .rx-card {
    padding: var(--space-4);
  }
  .rx-presets {
    width: 100%;
  }
  .rx-presets .dropdown {
    flex: 1;
    width: auto;
  }
  .rx-flags {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .rx-mode {
    width: 100%;
    order: 3;
  }
  .rx-results-head .btn {
    margin-left: auto;
  }
}