:root {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --bg-page: #11151c;
  --text-main: #e6edf3;
  --text-muted: #9fb1c7;
  --panel-bg: #171e27;
  --panel-border: #2f3a4a;
  --btn-primary: #2f81f7;
  --btn-secondary: #384557;
  --input-bg: #0f141b;
  --input-border: #39485b;
  --input-text: #e6edf3;
  --rule-border: #2a3442;
  --diff-changed-bg: #202a36;
  --diff-changed-border: #535f70;
  --mark-removed-bg: #6e2f34;
  --mark-removed-text: #ffd9dc;
  --mark-added-bg: #265d35;
  --mark-added-text: #c7ffcf;
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg-page: #f5f8fc;
  --text-main: #1f2937;
  --text-muted: #4b5d73;
  --panel-bg: #ffffff;
  --panel-border: #d5dde7;
  --btn-primary: #2563eb;
  --btn-secondary: #64748b;
  --input-bg: #ffffff;
  --input-border: #c4d0de;
  --input-text: #1f2937;
  --rule-border: #dbe3ec;
  --diff-changed-bg: #eef4ff;
  --diff-changed-border: #b4c5e6;
  --mark-removed-bg: #ffdadd;
  --mark-removed-text: #7f1d1d;
  --mark-added-bg: #dcfce7;
  --mark-added-text: #14532d;
  color-scheme: light;
}

body {
  margin: 0;
  background: var(--bg-page);
  color: var(--text-main);
}

.theme-toggle {
  position: fixed;
  top: 0.9rem;
  right: 0.9rem;
  z-index: 1000;
  width: 42px;
  height: 42px;
  border-radius: 999px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--btn-secondary);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.theme-toggle span {
  font-size: 1.1rem;
  line-height: 1;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
}

.workspace-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(320px, 1fr);
  gap: 1rem;
  align-items: start;
}

.left-column,
.right-column {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.right-column {
  position: sticky;
  top: 1rem;
  align-self: start;
}

.header h1 {
  margin-bottom: 0.25rem;
}

.header p {
  margin-top: 0;
  color: var(--text-muted);
}

.brand-row {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.brand-logo {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.logo-light {
  display: none;
}

:root[data-theme="light"] .logo-dark {
  display: none;
}

:root[data-theme="light"] .logo-light {
  display: inline-block;
}

.controls,
.action-bridge,
.manual-rules,
.advanced-filtering,
.why-cleanprompt,
.docs-links,
.change-log,
.diff-panel {
  padding: 1rem;
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  background: var(--panel-bg);
}

.site-footer {
  margin: 1.2rem auto 1.5rem auto;
  max-width: 1200px;
  padding: 0 1.5rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  text-align: center;
}

.site-footer p {
  margin: 0.2rem 0;
}

.readmore-dialog {
  width: min(900px, 92vw);
  border: 1px solid var(--panel-border);
  border-radius: 10px;
  background: var(--panel-bg);
  color: var(--text-main);
  padding: 0.9rem;
}

.readmore-dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
}

.readmore-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.6rem;
}

.readmore-header h3 {
  margin: 0;
}

#readMoreText {
  width: 100%;
  min-height: 360px;
  border: 1px solid var(--input-border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--input-text);
  padding: 0.7rem;
  line-height: 1.4;
  resize: vertical;
  box-sizing: border-box;
}

.stats-preview {
  margin-top: 0.6rem;
}

.stats-total {
  margin-bottom: 0.35rem;
}

.stats-line {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin: 0.14rem 0;
}

.stats-chart {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.stats-row {
  display: grid;
  grid-template-columns: 170px 1fr 56px;
  gap: 0.6rem;
  align-items: center;
}

.stats-label {
  font-size: 0.88rem;
}

.stats-bar-wrap {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  background: var(--rule-border);
  overflow: hidden;
}

.stats-bar {
  height: 100%;
  background: var(--btn-primary);
  border-radius: 999px;
  min-width: 2px;
}

.stats-value {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.control-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.context-row {
  margin-top: 0.85rem;
}

button {
  background: var(--btn-primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 0.5rem 0.8rem;
  cursor: pointer;
}

button.secondary {
  background: var(--btn-secondary);
}

select,
input[type="text"] {
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--input-text);
  border-radius: 6px;
  padding: 0.45rem 0.55rem;
}

.pane {
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 0.75rem;
  background: var(--panel-bg);
}

.pane-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.pane-header-row h2 {
  margin: 0;
}

.icon-copy-btn {
  width: 30px;
  height: 30px;
  padding: 0;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
}

.pane textarea {
  width: 100%;
  min-height: 420px;
  margin-top: 0.5rem;
  box-sizing: border-box;
  border-radius: 6px;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--input-text);
  padding: 0.6rem;
  line-height: 1.35;
  resize: vertical;
}

.manual-rule-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  align-items: center;
}

.manual-rule-row input[type="text"] {
  padding: 0.45rem;
  border-radius: 6px;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--input-text);
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.hint {
  color: var(--text-muted);
  margin: 0.6rem 0 0 0;
}

.doc-link {
  display: block;
  margin-top: 0.55rem;
  color: var(--btn-primary);
  text-decoration: none;
  font-weight: 600;
}

.doc-link:hover {
  text-decoration: underline;
}

.doc-link-primary {
  display: inline-block;
  padding: 0.45rem 0.65rem;
  border-radius: 6px;
  background: var(--btn-primary);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
}

.doc-link-primary:hover {
  text-decoration: none;
  filter: brightness(1.06);
}

.footer-link {
  color: var(--btn-primary);
  text-decoration: none;
}

.footer-link:hover {
  text-decoration: underline;
}

.collapsed {
  display: none;
}

.pattern-grid {
  margin-top: 0.75rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.4rem 0.8rem;
}

.pattern-check {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.2rem 0;
}

.change-item {
  border-bottom: 1px solid var(--rule-border);
  padding: 0.35rem 0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.88rem;
}

.diff-grid {
  display: grid;
  grid-template-columns: 60px 1fr 1fr;
  gap: 0.5rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86rem;
}

.diff-row {
  display: contents;
}

.diff-ln {
  color: var(--text-muted);
}

.diff-cell {
  white-space: pre-wrap;
  word-break: break-word;
  padding: 0.15rem 0.3rem;
  border-radius: 4px;
  border: 1px solid transparent;
}

.diff-cell.changed {
  border-color: var(--diff-changed-border);
  background: var(--diff-changed-bg);
}

mark.removed {
  background: var(--mark-removed-bg);
  color: var(--mark-removed-text);
}

mark.added {
  background: var(--mark-added-bg);
  color: var(--mark-added-text);
}

@media (max-width: 900px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }

  .right-column {
    position: static;
  }

  .pattern-grid {
    grid-template-columns: 1fr;
  }

  .theme-toggle {
    top: 0.65rem;
    right: 0.65rem;
  }

  .brand-row {
    align-items: flex-start;
  }

  .stats-row {
    grid-template-columns: 120px 1fr 50px;
  }
}