/* ChatPrep — styles.css
 *
 * Vanilla CSS, custom-properties-based, mobile-first, no build step.
 * Posture: GOV.UK / "boring on purpose" — high contrast, generous space,
 * one thing at a time. Targets WCAG 2.2 AA (AAA on touch targets).
 *
 * Sections:
 *   1. Tokens (light + dark)
 *   2. Reset / base
 *   3. Layout (header, main, footer)
 *   4. Typography
 *   5. Wizard screens
 *   6. Buttons
 *   7. Tile groups (radios that look like cards)
 *   8. Checkbox group
 *   9. Form inputs
 *  10. Tabs + tab panels (output)
 *  11. Misc (skip-link, error, details, noscript)
 */

/* ============ 1. TOKENS ============ */
:root {
  /* Color — light */
  --bg:           #fbfaf7;
  --surface:      #ffffff;
  --text:         #0b0c0c;
  --muted:        #505a5f;
  --border:       #cdd0d2;
  --accent:       #1d70b8;
  --accent-hover: #003078;
  --accent-text:  #ffffff;
  --focus-ring:   #ffdd00;
  --error:        #d4351c;
  --success:      #00703c;

  /* Type */
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Consolas, "Liberation Mono", Menlo, monospace;
  --text-base:    1.125rem;  /* 18px */
  --text-lead:    1.25rem;   /* 20px */
  --text-h1:      2.25rem;   /* 36px */
  --text-h2:      1.75rem;   /* 28px */
  --text-small:   0.95rem;   /* ~15px */
  --line-tight:   1.3;
  --line-body:    1.55;

  /* Space (rems, mobile-first) */
  --gap-xs: 0.5rem;
  --gap-sm: 1rem;
  --gap-md: 1.5rem;
  --gap-lg: 2.5rem;
  --gap-xl: 4rem;

  --radius-sm: 6px;
  --radius-md: 10px;

  --max-readable: 38rem;
  --max-form:     34rem;
  --touch-min:    44px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:           #0e0e10;
    --surface:      #18181b;
    --text:         #f3f2ee;
    --muted:        #b1b4b6;
    --border:       #3a3a3f;
    --accent:       #5694ca;
    --accent-hover: #8ab4dd;
    --accent-text:  #0b0c0c;
    --focus-ring:   #ffdd00;
    --error:        #f88a7a;
    --success:      #85994b;
  }
}

/* ============ 2. RESET / BASE ============ */
*, *::before, *::after { box-sizing: border-box; }

[hidden] { display: none !important; }   /* the [hidden] attribute MUST hide */

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--line-body);
  -webkit-font-smoothing: antialiased;
}

button { font: inherit; cursor: pointer; }
input, textarea, button { font-family: inherit; }

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}
a:hover { color: var(--accent-hover); }

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ============ 3. LAYOUT ============ */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: var(--gap-sm) var(--gap-md);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--gap-sm);
  flex-wrap: wrap;
}

.site-title {
  font-weight: 700;
  font-size: var(--text-lead);
  text-decoration: none;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.site-title__mark {
  color: var(--accent);
  font-size: 1.4em;
  line-height: 1;
}
.site-tagline {
  margin: 0;
  font-size: var(--text-small);
  color: var(--muted);
}

.wizard {
  max-width: var(--max-readable);
  margin: 0 auto;
  padding: var(--gap-lg) var(--gap-md) var(--gap-xl);
}

/* Layout: when the live preview is active, switch to split-screen on desktop.
   On mobile (<900px), stay single-column and let the preview render below as
   a collapsible <details>. */
.layout {
  display: block;
}
.layout--with-preview {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0;
}
@media (min-width: 900px) {
  .layout--with-preview {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: var(--gap-lg);
    align-items: start;
    padding: 0 var(--gap-md);
  }
  .layout--with-preview .wizard {
    margin: 0;
    padding: var(--gap-lg) 0 var(--gap-xl);
    max-width: none;
  }
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: var(--gap-md);
  text-align: center;
  font-size: var(--text-small);
  color: var(--muted);
}
.site-footer__line { margin: 0 0 var(--gap-xs); }
.site-footer__links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: var(--gap-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============ 4. TYPOGRAPHY ============ */
.screen__heading {
  font-size: var(--text-h1);
  line-height: var(--line-tight);
  margin: 0 0 var(--gap-sm);
  letter-spacing: -0.01em;
}
/* Heading is given tabindex=-1 + focused on screen-change so screen readers
   announce the new heading. It's not interactive — suppress the visible
   outline so sighted users don't see a focus ring on a non-clickable
   element. Focus state itself is preserved for assistive tech. */
.screen__heading:focus,
.screen__heading:focus-visible {
  outline: none;
}

@media (max-width: 480px) {
  .screen__heading { font-size: 1.875rem; }   /* 30px on phones */
}

h2.screen__heading { font-size: var(--text-h2); }

.screen__subhead {
  font-size: var(--text-lead);
  color: var(--muted);
  margin: 0 0 var(--gap-md);
  max-width: var(--max-readable);
}

.step-label {
  font-size: var(--text-small);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 var(--gap-xs);
}

/* ============ 5. WIZARD SCREENS ============ */
.screen {
  animation: fade-in 200ms ease-out;
}
.screen[hidden] { display: none; }

@keyframes fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  .screen { animation: none; }
}

.screen__actions {
  display: flex;
  gap: var(--gap-sm);
  flex-wrap: wrap;
  margin-top: var(--gap-md);
}

.step-nav {
  display: flex;
  justify-content: space-between;
  gap: var(--gap-sm);
  margin-top: var(--gap-lg);
  flex-wrap: wrap;
}
.step-nav--end { justify-content: flex-end; }

.reassurance {
  list-style: none;
  padding: 0;
  margin: var(--gap-md) 0;
}
.reassurance li {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  margin: var(--gap-xs) 0;
  color: var(--text);
}
.reassurance__check {
  color: var(--success);
  font-weight: 700;
  flex-shrink: 0;
  width: 1.25em;
}

/* ============ 6. BUTTONS ============ */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-min);
  padding: 0.7rem 1.5rem;
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1.2;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  text-decoration: none;
  transition: background-color 120ms, border-color 120ms, color 120ms;
}
.button--primary {
  background: var(--accent);
  color: var(--accent-text);
  border-color: var(--accent);
}
.button--primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

.button--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.button--ghost:hover { border-color: var(--text); }

.button[disabled] { opacity: 0.5; cursor: not-allowed; }

/* ============ 7. TILE GROUPS (radios as cards) ============ */
.tile-group {
  border: 0;
  padding: 0;
  margin: 0 0 var(--gap-md);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap-xs);
}
@media (min-width: 540px) {
  .tile-group { grid-template-columns: repeat(2, 1fr); gap: var(--gap-sm); }
}
.tile-group--small {
  grid-template-columns: 1fr;
}
@media (min-width: 540px) {
  .tile-group--small { grid-template-columns: repeat(3, 1fr); }
}

.tile {
  position: relative;
  display: block;
  padding: var(--gap-sm) var(--gap-md);
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  min-height: var(--touch-min);
  transition: border-color 120ms, background-color 120ms, transform 60ms;
}
.tile:hover { border-color: var(--accent); }
.tile:has(input:checked) {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
}
.tile:active { transform: scale(0.99); }

.tile input[type="radio"], .tile input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.tile__label {
  display: block;
  font-weight: 600;
  font-size: var(--text-lead);
  margin: 0 0 0.2em;
}
.tile__hint {
  display: block;
  color: var(--muted);
  font-size: var(--text-small);
  line-height: 1.4;
  margin: 0;
}

/* Focus state proxied via :has, since the input is visually hidden */
.tile:has(input:focus-visible) {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

/* ============ 8. CHECKBOX GROUP ============ */
.checkbox-group {
  border: 0;
  padding: 0;
  margin: 0 0 var(--gap-md);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.checkbox-row {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.6rem 0.8rem;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  min-height: var(--touch-min);
}
.checkbox-row:hover { background: color-mix(in srgb, var(--accent) 5%, var(--surface)); }
.checkbox-row:has(input:checked) {
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
  border-color: var(--accent);
}
.checkbox-row:has(input:focus-visible) {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

.checkbox-row input[type="checkbox"] {
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.2rem;
  accent-color: var(--accent);
  flex-shrink: 0;
}

.checkbox-row__text { display: block; }
.checkbox-row__label { display: block; font-weight: 500; }
.checkbox-row__hint  { display: block; color: var(--muted); font-size: var(--text-small); margin-top: 0.15em; }

/* ============ 9. FORM INPUTS ============ */
.form-row {
  margin: 0 0 var(--gap-md);
  max-width: var(--max-form);
}
.form-label {
  display: block;
  font-weight: 600;
  margin: 0 0 var(--gap-xs);
}
.form-input {
  width: 100%;
  min-height: var(--touch-min);
  padding: 0.6rem 0.8rem;
  font-size: var(--text-base);
  background: var(--surface);
  color: var(--text);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
}
.form-input:focus-visible {
  border-color: var(--accent);
}
.form-input--multiline {
  min-height: calc(var(--touch-min) * 1.8);
  resize: vertical;
  font-family: var(--font-body);
}
.form-hint {
  margin: 0.4rem 0 0;
  color: var(--muted);
  font-size: var(--text-small);
}

/* Per-field "why we ask" microcopy — sits between label and input */
.form-why {
  margin: 0 0 var(--gap-xs);
  color: var(--muted);
  font-size: var(--text-small);
  line-height: 1.45;
  max-width: var(--max-form);
}

/* Native select with consistent styling */
.form-input--select {
  appearance: none;
  -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%),
                    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 18px) 50%, calc(100% - 12px) 50%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
  padding-right: 2.5rem;
  cursor: pointer;
}
.form-input--select:focus-visible {
  border-color: var(--accent);
}

/* Suggestion chips below text fields */
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0.6rem 0 0;
  max-width: var(--max-form);
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0.35rem 0.85rem;
  font-size: var(--text-small);
  font-weight: 500;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 100ms, border-color 100ms, color 100ms;
  line-height: 1.2;
}
.chip:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.chip:active { transform: scale(0.97); }
.chip--selected {
  background: var(--accent);
  color: var(--accent-text);
  border-color: var(--accent);
}
.chip--selected:hover {
  background: var(--accent-hover);
  color: var(--accent-text);
  border-color: var(--accent-hover);
}
.chip:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

/* ============ 10. TABS + TAB PANELS ============ */
.tabs {
  display: flex;
  border-bottom: 2px solid var(--border);
  margin: var(--gap-md) 0 0;
  gap: 0;
  overflow-x: auto;
}
.tab {
  background: transparent;
  border: 0;
  border-bottom: 3px solid transparent;
  padding: 0.8rem 1.2rem;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: -2px;
  min-height: var(--touch-min);
}
.tab[aria-selected="true"] {
  color: var(--text);
  border-bottom-color: var(--accent);
}
.tab:hover { color: var(--text); }

.tab-panels { padding-top: var(--gap-md); }
.tab-panel[hidden] { display: none; }

.tab-panel__guidance {
  margin: 0 0 var(--gap-sm);
  color: var(--muted);
}
.tab-panel__paste-hint {
  background: color-mix(in srgb, var(--accent) 6%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--accent) 20%, var(--border));
  border-radius: var(--radius-sm);
  padding: var(--gap-sm);
  font-size: var(--text-small);
  margin: 0 0 var(--gap-sm);
}
.tab-panel__paste-hint a { color: var(--accent); font-weight: 600; }

.tab-panel__output-block {
  position: relative;
  margin-bottom: var(--gap-sm);
}
.tab-panel__output-block-label {
  display: block;
  font-size: var(--text-small);
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.3rem;
}
.tab-panel__output {
  width: 100%;
  min-height: 12rem;
  padding: var(--gap-sm);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1.55;
  background: var(--surface);
  color: var(--text);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  resize: vertical;
  white-space: pre-wrap;
}
.tab-panel__meta {
  display: flex;
  justify-content: space-between;
  font-size: var(--text-small);
  color: var(--muted);
  margin-top: 0.3rem;
  flex-wrap: wrap;
  gap: var(--gap-xs);
}
.tab-panel__copy {
  position: absolute;
  top: 0;
  right: 0;
  margin: 0;
  font-size: var(--text-small);
  padding: 0.4rem 0.8rem;
  min-height: 0;
}

.tab-panel__warning {
  background: color-mix(in srgb, var(--error) 10%, var(--surface));
  border-left: 4px solid var(--error);
  padding: 0.6rem 0.9rem;
  margin: var(--gap-sm) 0;
  font-size: var(--text-small);
}

/* ============ 11. MISC ============ */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  padding: 0.6rem 1rem;
  background: var(--accent);
  color: var(--accent-text);
  z-index: 100;
}
.skip-link:focus-visible { top: 0; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.error-message {
  color: var(--error);
  font-weight: 600;
  margin: 0 0 var(--gap-sm);
  padding-left: 0.6rem;
  border-left: 3px solid var(--error);
}
.error-message[hidden] { display: none; }

.details {
  border-top: 1px solid var(--border);
  padding: var(--gap-md) 0 0;
  margin-top: var(--gap-md);
}
.details summary {
  cursor: pointer;
  font-weight: 600;
}
.details p {
  margin-top: var(--gap-sm);
  color: var(--muted);
}

.noscript-warning {
  background: var(--surface);
  border: 2px solid var(--accent);
  padding: var(--gap-md);
  margin: var(--gap-lg) auto;
  max-width: var(--max-readable);
  border-radius: var(--radius-md);
}

/* ============ 11.5 ROUTER (homepage) ============ */
.router {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--gap-lg) var(--gap-md) var(--gap-xl);
}
.router__intro {
  text-align: center;
  max-width: 38rem;
  margin: 0 auto var(--gap-lg);
}
.router__heading {
  font-size: var(--text-h1);
  line-height: var(--line-tight);
  letter-spacing: -0.01em;
  margin: 0 0 var(--gap-sm);
}
.router__subhead {
  font-size: var(--text-lead);
  color: var(--muted);
  margin: 0;
}
.router__cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap-md);
}
@media (min-width: 740px) {
  .router__cards { grid-template-columns: 1fr 1fr; gap: var(--gap-lg); }
}
.router-card {
  display: flex;
  flex-direction: column;
  padding: var(--gap-md) var(--gap-md) var(--gap-lg);
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--text);
  transition: border-color 120ms, transform 100ms, box-shadow 120ms;
  min-height: 280px;
}
.router-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px color-mix(in srgb, var(--accent) 12%, transparent);
}
.router-card:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}
.router-card__kicker {
  font-size: var(--text-small);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0 0 var(--gap-xs);
}
.router-card__heading {
  font-size: 1.5rem;
  line-height: 1.25;
  margin: 0 0 var(--gap-sm);
  color: var(--text);
}
.router-card__body {
  font-size: var(--text-base);
  color: var(--text);
  margin: 0 0 var(--gap-md);
  flex: 1;
}
.router-card__cta {
  display: inline-block;
  align-self: flex-start;
  font-weight: 600;
  color: var(--accent);
}
.router-card:hover .router-card__cta { text-decoration: underline; }

/* ============ 11.6 SUPERCHARGE WIZARD ============ */
.wizard--narrow {
  max-width: 44rem;
}

/* CLI tile (richer than basic tile — vendor + body text) */
.cli-tile-group {
  border: 0;
  padding: 0;
  margin: 0 0 var(--gap-md);
  display: flex;
  flex-direction: column;
  gap: var(--gap-sm);
}
.cli-tile {
  position: relative;
  display: block;
  padding: var(--gap-md);
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color 120ms, background-color 120ms;
}
.cli-tile:hover { border-color: var(--accent); }
.cli-tile:has(input:checked) {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
}
.cli-tile:has(input:focus-visible) {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}
.cli-tile input { position: absolute; opacity: 0; pointer-events: none; }
.cli-tile__head {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.4em;
}
.cli-tile__name {
  font-weight: 700;
  font-size: var(--text-lead);
}
.cli-tile__vendor {
  font-size: var(--text-small);
  color: var(--muted);
}
.cli-tile__body {
  margin: 0;
  color: var(--text);
}
.cli-tile__note {
  margin: 0.6rem 0 0;
  font-size: var(--text-small);
  font-style: italic;
  color: var(--muted);
}
.cli-tile--disabled {
  opacity: 0.65;
  cursor: not-allowed;
}
.cli-tile--disabled:hover { border-color: var(--border); }

/* Walk-through output */
.walkthrough { margin-bottom: var(--gap-lg); }
.walkthrough__head { margin-bottom: var(--gap-md); }
.walkthrough__head h3 {
  font-size: 1.4rem;
  margin: 0 0 var(--gap-sm);
}
.walkthrough__cost {
  background: color-mix(in srgb, var(--success) 8%, var(--surface));
  border-left: 3px solid var(--success);
  padding: 0.6rem 0.9rem;
  margin: var(--gap-sm) 0;
  font-size: var(--text-small);
}
.walkthrough__prereqs {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: var(--gap-sm) var(--gap-md);
  margin-bottom: var(--gap-md);
}
.walkthrough__prereqs h4 {
  margin: 0 0 var(--gap-xs);
  font-size: 1rem;
}
.walkthrough__prereqs ul {
  margin: 0;
  padding-left: 1.2rem;
}
.walkthrough__prereqs li { margin-bottom: var(--gap-xs); }

.walkthrough__steps {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: step;
}
.walkthrough__steps .step {
  counter-increment: step;
  padding: var(--gap-md) 0;
  border-top: 1px solid var(--border);
  position: relative;
  padding-left: 2.5rem;
}
.walkthrough__steps .step::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: var(--gap-md);
  width: 1.8rem;
  height: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: var(--accent-text);
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.95rem;
}
.step__title {
  font-size: 1.1rem;
  margin: 0 0 var(--gap-xs);
  line-height: 1.3;
}
.step__explain {
  color: var(--muted);
  margin: 0 0 var(--gap-sm);
  line-height: 1.55;
}
.step__link {
  font-weight: 600;
  color: var(--accent);
}

.command-block {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin: var(--gap-sm) 0;
}
.command-block__code {
  margin: 0;
  padding: var(--gap-sm) var(--gap-md);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  line-height: 1.55;
  color: var(--text);
  white-space: pre-wrap;
  overflow-x: auto;
}
.command-block__copy {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  min-height: 0;
  padding: 0.3rem 0.7rem;
  font-size: var(--text-small);
}

.walkthrough__official {
  margin-top: var(--gap-md);
  padding: var(--gap-sm) var(--gap-md);
  background: color-mix(in srgb, var(--accent) 6%, var(--surface));
  border-radius: var(--radius-sm);
  font-size: var(--text-small);
}
.walkthrough__verified {
  font-size: var(--text-small);
  color: var(--muted);
  margin: var(--gap-md) 0;
}

.handoff {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--gap-md);
  margin: var(--gap-lg) 0;
}
.handoff h3 {
  margin: 0 0 var(--gap-sm);
  font-size: 1.1rem;
}
.handoff p { margin: 0; color: var(--text); }

/* ============ 12. RESUME BANNER ============ */
.resume-banner {
  max-width: var(--max-readable);
  margin: var(--gap-sm) auto 0;
  padding: 0.6rem var(--gap-md);
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--accent) 25%, var(--border));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
  font-size: var(--text-small);
}
.resume-banner__text { flex: 1; color: var(--text); }
.resume-banner__dismiss {
  background: none;
  border: 0;
  color: var(--muted);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
}
.button--small {
  min-height: 32px;
  padding: 0.35rem 0.9rem;
  font-size: var(--text-small);
}

/* ============ 13. LIVE PREVIEW PANE ============ */
.preview {
  padding: var(--gap-md);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin: var(--gap-lg) var(--gap-md);
  font-size: var(--text-small);
}

@media (min-width: 900px) {
  .preview {
    position: sticky;
    top: var(--gap-md);
    margin: var(--gap-lg) 0;
    max-height: calc(100vh - 4rem);
    overflow-y: auto;
  }
  /* Always-open on desktop — the <summary> chevron toggle is mobile-only */
  .preview__details > summary {
    list-style: none;
    cursor: default;
    pointer-events: none;
  }
  .preview__chevron { display: none; }
}

.preview__details {
  margin: 0;
}
.preview__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  padding: 0.2rem 0;
  list-style: none;
}
.preview__summary::-webkit-details-marker { display: none; }
.preview__label {
  font-size: var(--text-small);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.preview__chevron {
  color: var(--muted);
  transition: transform 200ms;
}
.preview__details[open] .preview__chevron { transform: rotate(180deg); }

.preview__body {
  margin-top: var(--gap-sm);
}

.preview__placeholder {
  margin: 0;
  padding: var(--gap-md) 0;
  color: var(--muted);
  font-style: italic;
  text-align: center;
}

.preview__tabs {
  margin: 0 0 var(--gap-sm);
  border-bottom: 1px solid var(--border);
}
.preview__tabs .tab {
  padding: 0.5rem 0.8rem;
  font-size: var(--text-small);
  min-height: 36px;
}

.preview__panel[hidden] { display: none; }

.preview__output-block {
  margin: 0;
}

.preview__output {
  width: 100%;
  padding: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.5;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  resize: none;
  white-space: pre-wrap;
  cursor: default;
}

/* ============ 14. ARTICLE PAGES (about, privacy) ============ */
.screen article, article.screen {
  font-size: var(--text-base);
}
.screen h2 {
  font-size: 1.4rem;
  margin: var(--gap-lg) 0 var(--gap-xs);
  line-height: var(--line-tight);
}
.screen h2:first-of-type { margin-top: var(--gap-md); }
.screen p {
  margin: 0 0 var(--gap-sm);
  max-width: var(--max-readable);
  color: var(--text);
}
.screen ul, .screen ol {
  margin: var(--gap-sm) 0;
  padding-left: 1.4rem;
  max-width: var(--max-readable);
}
.screen ul.reassurance { padding-left: 0; }
.screen li { margin-bottom: var(--gap-xs); }
.screen code {
  font-family: var(--font-mono);
  font-size: 0.95em;
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
  padding: 0.1em 0.35em;
  border-radius: 4px;
}
.screen strong { color: var(--text); }