/* assets/ddt-tool-shell.css
 * Shared "tool-body" design layer for the Figma "Modern Tool Website" redesign.
 * Reusable component classes (prefix `rdt-`) for the tool UI that sits between
 * the injected breadcrumb and the SEO/footer. Themed via the existing --rd-*
 * tokens (assets/ddt-redesign-tokens.css) so it adapts to light & dark.
 *
 * Everything is scoped under `.rdt-tool` so it cannot bleed into legacy pages
 * or shared components (toasts, command palette, platform slots).
 *
 * First adopted by json-formatter.html; intended as the template for all tool
 * pages. Spec: site redesign (Figma "Modern Tool Website Design").
 */

/* ===== Local surface/syntax tints (token-derived so they invert in light) ===== */
.rdt-tool {
  --rdt-pane-bg: var(--rd-bg-surface);
  --rdt-head-bg: var(--rd-bg-elevated);
  /* Accent is per-page (category). Default = Data / cyan. Override with an
     .rdt-accent-* modifier class on the same element. */
  --rdt-accent: #00d4ff;
  --rdt-accent-2: #0099cc;
  --rdt-on-accent: #061018;
  --rdt-accent-soft: color-mix(in srgb, var(--rdt-accent) 10%, transparent);
  --rdt-accent-line: color-mix(in srgb, var(--rdt-accent) 18%, transparent);
  --rdt-switch-off: color-mix(in srgb, var(--rd-text-dim) 45%, transparent);
  --rdt-ok: #10b981;
  --rdt-warn: #f59e0b;
  --rdt-err: #ef4444;
  /* JSON syntax palette (shared by output + tree) */
  --rdt-syn-key: #7c9cbf;
  --rdt-syn-str: #10b981;
  --rdt-syn-num: #a78bfa;
  --rdt-syn-bool: #f59e0b;
  --rdt-syn-null: #ef4444;
}
/* Per-category accent palettes (gradient stops + on-accent text colour) */
.rdt-tool.rdt-accent-data      { --rdt-accent: #00d4ff; --rdt-accent-2: #0099cc; --rdt-on-accent: #061018; }
.rdt-tool.rdt-accent-api       { --rdt-accent: #7c3aed; --rdt-accent-2: #6d28d9; --rdt-on-accent: #ffffff; }
.rdt-tool.rdt-accent-encode    { --rdt-accent: #10b981; --rdt-accent-2: #047857; --rdt-on-accent: #ffffff; }
.rdt-tool.rdt-accent-devops    { --rdt-accent: #f59e0b; --rdt-accent-2: #b45309; --rdt-on-accent: #1a1205; }
.rdt-tool.rdt-accent-utilities { --rdt-accent: #a78bfa; --rdt-accent-2: #7c3aed; --rdt-on-accent: #ffffff; }
.rdt-tool.rdt-accent-checklists{ --rdt-accent: #f43f5e; --rdt-accent-2: #be123c; --rdt-on-accent: #ffffff; }
html[data-theme='light'] .rdt-tool {
  --rdt-syn-key: #4a6fa5;
  --rdt-syn-str: #047857;
  --rdt-syn-num: #6d28d9;
  --rdt-syn-bool: #b45309;
  --rdt-syn-null: #b91c1c;
}

/* ===== Page wrapper ===== */
.rdt-tool {
  max-width: var(--rd-max-width);
  margin: 0 auto;
  padding: 24px 24px 8px;
  font-family: var(--rd-font-sans);
  color: var(--rd-text-primary);
}
.rdt-tool *,
.rdt-tool *::before,
.rdt-tool *::after {
  box-sizing: border-box;
}

/* ===== Sticky action toolbar (second bar, below the injected breadcrumb) ===== */
.rdt-toolbar {
  position: sticky;
  top: var(--rd-nav-height, 56px);
  z-index: 30;
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 0 0 18px;
  padding: 10px 12px;
  background: color-mix(in srgb, var(--rd-bg-app) 92%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--rd-border-soft);
  border-radius: var(--rd-radius-md);
}
.rdt-toolbar-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.rdt-toolbar-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 0.72rem;
  color: var(--rd-text-muted);
}
.rdt-divider {
  width: 1px;
  align-self: stretch;
  min-height: 22px;
  margin: 0 2px;
  background: var(--rdt-accent-line);
}
.rdt-spacer { flex: 1 1 auto; }

/* ===== Buttons ===== */
.rdt-btn,
.rdt-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--rd-radius-sm);
  font-family: var(--rd-font-sans);
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: background var(--rd-trans-fast), border-color var(--rd-trans-fast),
    color var(--rd-trans-fast), opacity var(--rd-trans-fast);
  white-space: nowrap;
}
.rdt-btn-primary {
  border: 1px solid transparent;
  background: linear-gradient(135deg, var(--rdt-accent), var(--rdt-accent-2));
  color: var(--rdt-on-accent);
}
.rdt-btn-primary:hover { opacity: 0.9; }
.rdt-btn {
  border: 1px solid var(--rd-border-strong);
  background: transparent;
  color: var(--rd-text-muted);
}
.rdt-btn:hover {
  color: var(--rd-text-primary);
  border-color: var(--rdt-accent);
}
.rdt-btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 10px;
  border: 1px solid var(--rd-border-soft);
  border-radius: var(--rd-radius-sm);
  background: transparent;
  color: var(--rd-text-muted);
  font-family: var(--rd-font-sans);
  font-size: 0.75rem;
  cursor: pointer;
  transition: color var(--rd-trans-fast), border-color var(--rd-trans-fast);
}
.rdt-btn-ghost:hover {
  color: var(--rd-text-primary);
  border-color: var(--rdt-accent);
}
.rdt-tool .rdt-btn:focus-visible,
.rdt-tool .rdt-btn-primary:focus-visible,
.rdt-tool .rdt-btn-ghost:focus-visible {
  outline: 2px solid var(--rdt-accent);
  outline-offset: 2px;
}

/* ===== Select (indent) ===== */
.rdt-select {
  padding: 6px 8px;
  border-radius: var(--rd-radius-sm);
  border: 1px solid var(--rd-border-strong);
  background: var(--rd-bg-elevated);
  color: var(--rd-text-primary);
  font-family: var(--rd-font-mono);
  font-size: 0.75rem;
  cursor: pointer;
}

/* ===== Toggle switch (wraps an existing checkbox, no JS) ===== */
.rdt-switch {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  user-select: none;
}
.rdt-switch input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}
.rdt-switch-track {
  position: relative;
  flex: 0 0 auto;
  width: 30px;
  height: 16px;
  border-radius: 999px;
  background: var(--rdt-switch-off);
  transition: background var(--rd-trans-fast);
}
.rdt-switch-knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #fff;
  transition: left var(--rd-trans-fast);
}
.rdt-switch input:checked + .rdt-switch-track { background: var(--rdt-accent); }
.rdt-switch input:checked + .rdt-switch-track .rdt-switch-knob { left: calc(100% - 14px); }
.rdt-switch input:focus-visible + .rdt-switch-track {
  outline: 2px solid var(--rdt-accent);
  outline-offset: 2px;
}
.rdt-switch-label {
  font-family: var(--rd-font-mono);
  font-size: 0.7rem;
  color: var(--rd-text-muted);
}

/* ===== Title header ===== */
.rdt-title {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}
.rdt-title-main { display: flex; align-items: flex-start; gap: 12px; min-width: 0; }
.rdt-title-icon {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: var(--rd-radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--rdt-accent-soft);
  color: var(--rdt-accent);
  border: 1px solid var(--rdt-accent-line);
}
.rdt-title h1 {
  margin: 0;
  font-family: var(--rd-font-sans);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: var(--rd-heading-tight);
  color: var(--rd-text-primary);
  line-height: 1.2;
}
.rdt-title-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 2px; }
.rdt-pill {
  padding: 2px 9px;
  border-radius: 999px;
  font-family: var(--rd-font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  background: var(--rdt-accent-soft);
  color: var(--rdt-accent);
  white-space: nowrap;
}
.rdt-subtitle {
  margin: 2px 0 0;
  font-size: 0.84rem;
  color: var(--rd-text-muted);
  line-height: 1.5;
}
.rdt-tool .tool-help.rdt-help-list {
  margin: 8px 0 0;
  padding-left: 16px;
  font-size: 0.78rem;
  color: var(--rd-text-muted);
  line-height: 1.55;
}
.rdt-trust {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: var(--rd-radius-sm);
  border: 1px solid color-mix(in srgb, var(--rdt-ok) 22%, transparent);
  background: color-mix(in srgb, var(--rdt-ok) 6%, transparent);
  font-family: var(--rd-font-mono);
  font-size: 0.62rem;
  color: var(--rdt-ok);
  white-space: nowrap;
}
@media (max-width: 640px) {
  .rdt-trust { display: none; }
}

/* ===== Editor panes ===== */
.rdt-panes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 16px;
}
@media (min-width: 980px) {
  .rdt-panes { grid-template-columns: 1fr 1fr; }
}
.rdt-pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  border-radius: var(--rd-radius-lg);
  border: 1px solid var(--rd-border-soft);
  background: var(--rdt-pane-bg);
  overflow: hidden;
}
.rdt-pane-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  padding: 8px 12px;
  border-bottom: 1px solid var(--rd-border-soft);
  background: var(--rdt-head-bg);
}
.rdt-pane-head-left { display: flex; align-items: center; gap: 10px; min-width: 0; }
.rdt-pane-head-right { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.rdt-pane-label {
  font-family: var(--rd-font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--rd-text-dim);
}
.rdt-pane-body { display: flex; flex-direction: column; min-height: 0; }

/* Editor text areas (input + readonly output) */
.rdt-tool textarea#jsonFormatterInput,
.rdt-tool textarea#jsonFormatterOutput {
  width: 100%;
  height: auto;
  min-height: 460px;
  resize: vertical;
  border: 0;
  outline: none;
  padding: 14px 16px;
  background: transparent;
  color: var(--rd-text-primary);
  font-family: var(--rd-font-mono);
  font-size: 0.8rem;
  line-height: 1.75;
}
.rdt-tool textarea#jsonFormatterInput::placeholder,
.rdt-tool textarea#jsonFormatterOutput::placeholder {
  color: var(--rd-text-dim);
}
@media (max-width: 900px) {
  .rdt-tool textarea#jsonFormatterInput,
  .rdt-tool textarea#jsonFormatterOutput { min-height: 320px; }
}
.rdt-pane-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  padding: 8px 12px;
  border-top: 1px solid var(--rd-border-soft);
  background: var(--rdt-head-bg);
  font-size: 0.72rem;
  color: var(--rd-text-muted);
}

/* Status badges */
.rdt-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: 999px;
  font-family: var(--rd-font-mono);
  font-size: 0.65rem;
  border: 1px solid var(--rd-border-soft);
  color: var(--rd-text-muted);
}
.rdt-status.is-ok { color: var(--rdt-ok); border-color: color-mix(in srgb, var(--rdt-ok) 30%, transparent); }
.rdt-status.is-err { color: var(--rdt-err); border-color: color-mix(in srgb, var(--rdt-err) 30%, transparent); }

/* ===== Segmented tabs (results view switch) ===== */
.rdt-tabs {
  display: inline-flex;
  padding: 3px;
  gap: 3px;
  border-radius: var(--rd-radius-sm);
  border: 1px solid var(--rd-border-soft);
  background: var(--rdt-head-bg);
}
.rdt-tab {
  border: 0;
  background: transparent;
  color: var(--rd-text-muted);
  font-family: var(--rd-font-mono);
  font-size: 0.72rem;
  padding: 5px 12px;
  border-radius: calc(var(--rd-radius-sm) - 2px);
  cursor: pointer;
  transition: background var(--rd-trans-fast), color var(--rd-trans-fast);
}
.rdt-tab[aria-selected='true'] {
  background: var(--rdt-accent-soft);
  color: var(--rdt-accent);
}

/* ===== Result cards / stats / banners ===== */
.rdt-results { margin-top: 18px; }
.rdt-results-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.rdt-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(260px, 0.9fr);
  gap: 14px;
}
@media (max-width: 900px) {
  .rdt-grid { grid-template-columns: 1fr; }
}
.rdt-card {
  border: 1px solid var(--rd-border-soft);
  border-radius: var(--rd-radius-md);
  background: var(--rdt-pane-bg);
  padding: 14px;
}
.rdt-card h3 {
  margin: 0 0 8px;
  font-family: var(--rd-font-sans);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--rd-text-primary);
}
.rdt-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.rdt-card-head h3 { margin: 0; }
.rdt-card-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.rdt-card.is-warn {
  border-color: color-mix(in srgb, var(--rdt-warn) 45%, transparent);
  background: color-mix(in srgb, var(--rdt-warn) 8%, transparent);
}

.rdt-stats {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 28px;
  padding: 12px 16px;
  border-radius: var(--rd-radius-md);
  border: 1px solid var(--rd-border-soft);
  background: var(--rd-bg-elevated);
}
.rdt-actions-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}
.rdt-field-label {
  font-family: var(--rd-font-mono);
  font-size: 0.7rem;
  color: var(--rd-text-muted);
}

/* Full-width primary (e.g. UUID "Generate") */
.rdt-btn-block {
  width: 100%;
  justify-content: center;
  padding: 11px 14px;
  font-size: 0.875rem;
}

/* Config grid (label-over-control cells) */
.rdt-config-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: 16px;
}
.rdt-field-col { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.rdt-field-col > span.rdt-field-label,
.rdt-field-col > label.rdt-field-label {
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.rdt-field-hint { font-size: 0.68rem; color: var(--rd-text-dim); }
.rdt-tool .rdt-config-grid select,
.rdt-tool select.rdt-select {
  width: 100%;
}

/* Empty state */
.rdt-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  min-height: 200px;
  color: var(--rd-text-dim);
  font-family: var(--rd-font-mono);
  font-size: 0.8rem;
}

/* Search / depth control rows reused from results */
.rdt-control-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.rdt-tool input[type='number'],
.rdt-tool input[type='search'],
.rdt-tool input[type='text'] {
  padding: 6px 10px;
  border-radius: var(--rd-radius-sm);
  border: 1px solid var(--rd-border-strong);
  background: var(--rd-bg-elevated);
  color: var(--rd-text-primary);
  font-family: var(--rd-font-mono);
  font-size: 0.78rem;
}
.rdt-tool input[type='number']:focus,
.rdt-tool input[type='search']:focus,
.rdt-tool input[type='text']:focus { outline: none; border-color: var(--rdt-accent); }

/* Generic themed textarea (output/validate/export/snippet areas) */
.rdt-tool textarea.rdt-textarea {
  width: 100%;
  min-height: 140px;
  resize: vertical;
  border: 1px solid var(--rd-border-soft);
  border-radius: var(--rd-radius-md);
  background: var(--rd-bg-app);
  color: var(--rd-text-primary);
  font-family: var(--rd-font-mono);
  font-size: 0.8rem;
  line-height: 1.7;
  padding: 12px 14px;
  outline: none;
}
.rdt-tool textarea.rdt-textarea:focus { border-color: var(--rdt-accent); }
.rdt-tool textarea.rdt-textarea::placeholder { color: var(--rd-text-dim); }

/* Compact data table (e.g. version guide) */
.rdt-tool .rdt-table { width: 100%; border-collapse: collapse; font-size: 0.8rem; }
.rdt-tool .rdt-table th,
.rdt-tool .rdt-table td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--rd-border-soft);
  vertical-align: top;
}
.rdt-tool .rdt-table th { color: var(--rd-text-primary); font-weight: 700; }
.rdt-tool .rdt-table td { color: var(--rd-text-muted); }
.rdt-table-scroll { overflow-x: auto; }

/* Keyboard chips */
.rdt-tool .kbd {
  display: inline-flex;
  align-items: center;
  padding: 1px 6px;
  border-radius: 5px;
  border: 1px solid var(--rd-border-soft);
  background: var(--rd-bg-elevated);
  font-family: var(--rd-font-mono);
  font-size: 0.65rem;
  color: var(--rd-text-muted);
}

/* Inline action status */
.rdt-tool #actionStatus[data-kind='error'] { color: var(--rdt-err); }
.rdt-tool #actionStatus[data-kind='ok'] { color: var(--rdt-ok); }
.rdt-tool #actionStatus[data-kind='info'] { color: var(--rd-text-muted); }

/* SEO content readability on the dark surface */
.rdt-seo {
  max-width: 72ch;
  margin: 40px auto;
  padding: 0 16px;
  line-height: 1.7;
  color: var(--rd-text-muted);
}
.rdt-seo h2, .rdt-seo h3 { color: var(--rd-text-primary); }
.rdt-seo a { color: var(--rdt-accent); }

/* ===== Platform-injected chrome (action bar, favourites, examples, next steps)
   The shared platform JS injects these into every tool page, inside `.rdt-tool`.
   Restyle them to the redesign. This lives in the shell (not the bridge) so the
   fully-rebuilt pages get it too. The broad legacy-class button rules below only
   ever match injected chrome on rebuilt pages (their bodies use rdt-* classes)
   and harmlessly mirror the bridge on bridge-converted pages. ===== */

/* Output action bar */
.rdt-tool .ddt-actionbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  margin: 0 0 16px;
  border: 1px solid var(--rd-border-soft);
  border-radius: var(--rd-radius-md);
  background: var(--rd-bg-elevated);
}
.rdt-tool .ddt-actionbar-left,
.rdt-tool .ddt-actionbar-right,
.rdt-tool .ddt-actionbar-group,
.rdt-tool .ddt-actionbar-workflow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}
.rdt-tool .ddt-actionbar-right { margin-left: auto; }
.rdt-tool .ddt-actionbar-divider {
  width: 1px;
  align-self: stretch;
  min-height: 20px;
  color: transparent;
  background: var(--rdt-accent-line);
}
.rdt-tool .ddt-actionbar-trust,
.rdt-tool .ddt-actionbar-workflow-hint,
.rdt-tool .ddt-actionbar-meta {
  flex-basis: 100%;
  color: var(--rd-text-dim);
  font-family: var(--rd-font-mono);
  font-size: 0.66rem;
}

/* Tool header (favourites / share / help) injected into the title row */
.rdt-tool .ddt-tool-header,
.rdt-tool .ddt-tool-actions {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.rdt-tool .ddt-help-icon {
  background: var(--rd-bg-elevated);
  color: var(--rd-text-muted);
  border: 1px solid var(--rd-border-soft);
}

/* Injected chrome buttons (legacy classes) -> shell button look */
.rdt-tool .secondary,
.rdt-tool .small-btn,
.rdt-tool .icon-button,
.rdt-tool [data-ddt-sample-key] {
  background: transparent;
  color: var(--rd-text-muted);
  border: 1px solid var(--rd-border-strong);
  border-radius: var(--rd-radius-sm);
  font-family: var(--rd-font-sans);
}
.rdt-tool .secondary:hover,
.rdt-tool .small-btn:hover,
.rdt-tool .icon-button:hover {
  color: var(--rd-text-primary);
  border-color: var(--rdt-accent);
}
.rdt-tool .primary,
.rdt-tool .ddt-workflow-cta-btn {
  background: linear-gradient(135deg, var(--rdt-accent), var(--rdt-accent-2));
  color: var(--rdt-on-accent);
  border: 1px solid transparent;
  border-radius: var(--rd-radius-sm);
  font-family: var(--rd-font-sans);
  font-weight: 600;
}
.rdt-tool .primary:hover,
.rdt-tool .ddt-workflow-cta-btn:hover { opacity: 0.9; }
.rdt-tool .primary:focus-visible,
.rdt-tool .secondary:focus-visible,
.rdt-tool .small-btn:focus-visible,
.rdt-tool .icon-button:focus-visible {
  outline: 2px solid var(--rdt-accent);
  outline-offset: 2px;
}

/* Selects / choice groups in chrome */
.rdt-tool .ddt-select,
.rdt-tool .ddt-choice-group select {
  background: var(--rd-bg-app);
  color: var(--rd-text-primary);
  border: 1px solid var(--rd-border-strong);
  border-radius: var(--rd-radius-sm);
  padding: 6px 8px;
  font-family: var(--rd-font-mono);
}

/* Examples + next-steps sections */
.rdt-tool .ddt-examples,
.rdt-tool .section-separator.ddt-examples,
.rdt-tool .ddt-next-actions,
.rdt-tool .next-actions {
  border-color: var(--rd-border-soft);
}
/* NOTE: the workflow CTA (.ddt-workflow-cta-btn) is intentionally kept as a
   secondary/outline button by styles.css (so it doesn't compete with the
   tool's own primary button) — left as-is. */