/* Wide screens give artwork more room; reading sections keep their own measure. */
@media (min-width: 1440px) {
  .site-header .header-inner,
  #tool > .page-shell,
  #examples > .page-shell {
    width: clamp(1280px, calc(100% - 160px), 1440px);
  }

  /* Grow the image as well as its frame, without lengthening short screens. */
  .workspace .preview-panel:not(.is-expanded) .ascii-frame {
    height: clamp(500px, calc(100dvh - 360px), 620px);
  }
}

/* One document scroll. Upload, preview and settings have independent heights. */
.workspace {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  grid-template-areas: "upload upload" "settings preview" "tuning tuning";
  align-items: start;
  gap: 16px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  overflow: visible;
}
.upload-panel { grid-area: upload; min-width: 0; }
.workspace .upload-box {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 12px 24px;
  align-items: center;
  padding: 20px 24px;
  text-align: left;
  background: var(--surface);
  border-radius: 10px;
}
.upload-intro { min-width: 0; }
.upload-intro h2 { font-size: 25px; line-height: 1.1; margin-bottom: 8px; }
.upload-intro strong { display: block; font-size: 18px; font-weight: 400; }
.upload-intro > span { display: inline-block; font-size: 16px; color: var(--muted); margin-right: 10px; }
.workspace .upload-actions { margin: 0; flex-wrap: wrap; justify-content: start; }
.workspace .upload-button { background: var(--accent); color: #111315; min-height: 44px; }
.workspace .sample-button { min-height: 44px; }
.upload-samples { position: relative; }
.upload-samples > summary { font-size: 18px; padding-block: 12px; min-height: 44px; }
.upload-samples[open] { grid-column: 1/-1; }
.workspace .sample-actions { justify-content: start; margin-top: 6px; gap: 4px 20px; }
.workspace .sample-chip { min-height: 44px; font-size: 18px; }
.workspace .sample-actions:has(.sample-tile) { display: grid; grid-template-columns: repeat(6,minmax(0,1fr)); gap: 12px; margin-top: 8px; }
.sample-tile { display: flex; flex-direction: column; min-width: 0; border: 1px solid var(--line); border-radius: 6px; padding: 6px 6px 10px; background: var(--page); color: var(--ink); text-align: left; cursor: pointer; }
.sample-tile:hover { border-color: var(--muted); background: var(--soft); }
.sample-tile[aria-pressed=true] { border-color: var(--accent); background: var(--soft); }
.sample-tile .sample-result { display: block; width: 100%; height: auto; aspect-ratio: 1; object-fit: contain; background: #080b0b; border-radius: 3px; }
.sample-tile-name { font: 20px/1.15 var(--font-ui); padding: 10px 4px 0; }
.sample-tile-meta { font: 15px/1.25 var(--font-ui); color: var(--muted); padding: 5px 4px 0; }
.sample-menu-note { font: 16px/1.35 var(--font-ui); color: var(--muted); margin: 14px 0 2px; }
.workspace .source-preview { grid-column: 1/-1; padding-top: 12px; margin: 0; }
.workspace .source-preview[hidden] { display: none; }
.workspace .source-preview strong { font-size: 18px; font-weight: 400; }
.workspace .source-preview span { font-size: 15px; }
.workspace .control-panel {
  grid-area: settings;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 22px;
  height: auto;
  min-width: 0;
}
.control-panel > .panel-title { margin-bottom: 16px; }
.control-panel #settings-title { font-size: 25px; line-height: 1.1; }
.control-panel > .panel-title p { display: block; margin-top: 7px; font-size: 17px; line-height: 1.2; }
.workspace .fields { margin: 0; grid-template-columns: 1fr; gap: 18px; }
.workspace .fields > * { grid-column: auto; }
.workspace .field { gap: 8px; }
.workspace .preset-bar { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
.workspace .preset-button { min-height: 44px; font-size: 18px; }
.workspace .field input[type=range] { height: 28px; margin: 0; }
.workspace .field select { min-height: 44px; }
.workspace .toggle-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
.workspace .toggle { min-height: 44px; padding: 8px; border: 1px solid var(--line); border-radius: 4px; font-size: 18px; font-weight: 400; }
.workspace .toggle input { width: 18px; height: 18px; }
.settings-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; border-top: 1px solid var(--line); padding-top: 6px; }
.workspace #resetButton { font-size: 17px; min-height: 44px; }
.workspace .preview-panel {
  grid-area: preview;
  order: initial;
  width: 100%;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 10px;
  position: relative;
  top: auto;
}
.workspace .preview-panel > .panel-title { margin-bottom: 16px; }
.workspace .preview-panel > .panel-title > div { display: flex; align-items: center; flex-wrap: wrap; gap: 8px 16px; }
.workspace .preview-panel .output-stats { flex-basis: 100%; margin: 0; font-size: 15px; }
.workspace .preview-tools { gap: 6px; }
.workspace .preview-tools > span { font-size: 12px; }
.workspace .preview-tools button { min-height: 44px; padding: 8px 10px; }
.workspace .ascii-frame { height: clamp(380px, 38vw, 500px); max-height: none; }
.workspace .actions { margin-top: 14px; }
.workspace .actions button { min-height: 44px; font-size: 18px; }
.workspace .export-panel { margin-top: 12px; padding-top: 10px; }
.workspace .export-panel summary { min-height: 44px; display: flex; align-items: center; }
.workspace .export-panel summary::before { content: "+"; margin-right: 8px; }
.workspace .export-panel[open] summary::before { content: "−"; }
.workspace .export-grid button { min-height: 44px; font-size: 18px; }
.workspace .export-note { font-size: 17px; }
.workspace .demo-bar { padding: 12px; gap: 8px; }
.workspace .demo-bar button { min-height: 44px; min-width: 44px; }
.workspace .demo-title { font-size: 19px; }
.workspace .demo-title small { font-size: 11px; }
.tuning-panel { grid-area: tuning; border: 1px solid var(--line); border-radius: 10px; padding: 0 24px; background: var(--surface); min-width: 0; }
.workspace .advanced-controls { border: 0; padding: 0; }
.workspace .advanced-controls > summary { display: flex; align-items: center; gap: 12px; min-height: 66px; font-size: 21px; list-style: none; }
.workspace .advanced-controls > summary::-webkit-details-marker { display: none; }
.workspace .advanced-controls > summary::before { content: "+"; color: var(--accent); font: 22px var(--font-mono); }
.workspace .advanced-controls[open] > summary::before { content: "−"; }
.workspace .advanced-summary-hint { margin-left: auto; font-size: 17px; color: var(--muted); font-weight: 400; }
.workspace .advanced-grid { grid-template-columns: repeat(3, minmax(0,1fr)); gap: 22px 32px; margin: 0; padding: 8px 0 24px; }
.workspace .advanced-grid .field:has(#gammaRange) { grid-column: 1/-1; grid-template-columns: minmax(160px,1fr) 2fr; align-items: center; gap: 8px 32px; }
.workspace .advanced-grid .field:has(#gammaRange) .field-hint { grid-column: 2; }
.workspace .advanced-grid input[type=range] { width: 100%; accent-color: var(--accent); }
.workspace .advanced-grid .toggle { align-self: end; }
.mobile-workbench-link { display: none; }
.preset-group-label { display: block; margin: 0 0 8px; color: var(--muted); font: 17px var(--font-ui); }
.destination-presets { margin-top: 8px; border-top: 1px solid var(--line); }
.destination-presets > summary { min-height: 44px; padding: 12px 0; font: 18px var(--font-ui); color: var(--muted); cursor: pointer; }
.mobile-quick-controls { display: none; }
.export-guidance { margin: 10px 0 0; font: 17px/1.35 var(--font-ui); color: var(--muted); }
.preview-panel:not(.has-output) .export-guidance { display: none; }
.workspace .preview-panel.is-expanded { position: fixed; inset: 16px; width: auto; z-index: 100; overflow: auto; background: var(--page); }
.workspace .preview-panel.is-expanded .ascii-frame { height: calc(100dvh - 280px); min-height: 240px; }
#dropZone, #settingsPanel, #previewPanel { scroll-margin-top: 20px; }
@media (max-width: 1050px) and (min-width: 961px) {
  .workspace .sample-actions:has(.sample-tile) { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .workspace { grid-template-columns: 290px minmax(0,1fr); gap: 12px; }
  .workspace .upload-box { grid-template-columns: minmax(0,1fr) auto; }
  .upload-samples { grid-column: 1/-1; }
  .upload-samples > summary { padding-block: 4px; }
  .workspace .control-panel, .workspace .preview-panel { padding: 18px; }
  .workspace .demo-title { flex-basis: 100%; }
  .workspace .preview-tools > span { flex-basis: 100%; }
}
@media (max-width: 960px) {
  .workspace .sample-actions:has(.sample-tile) { grid-template-columns: repeat(3,minmax(0,1fr)); gap: 10px; }
  .workspace { display: grid; grid-template-columns: minmax(0,1fr); grid-template-areas: "upload" "preview" "settings" "tuning"; gap: 12px; }
  .workspace .upload-box { grid-template-columns: minmax(0,1fr); padding: 18px; gap: 10px; }
  .workspace .upload-actions { display: grid; grid-template-columns: 1fr 1fr; }
  .workspace .upload-intro > span { display: block; }
  .upload-samples { grid-column: 1; }
  .upload-samples > summary { min-height: 44px; padding-block: 10px; }
  .workspace .control-panel, .workspace .preview-panel { padding: 18px; border-radius: 8px; }
  .workspace .ascii-frame { height: clamp(270px, 78vw, 390px); }
  .workspace .preview-tools > span { display: none; }
  .workspace .preview-tools { justify-content: start; }
  .workspace .preview-tools button { padding: 8px; font-size: 16px; }
  .workspace .preview-panel > .panel-title > div { gap: 8px; }
  .mobile-workbench-link { display: inline-flex; align-items: center; min-height: 44px; font-size: 17px; color: var(--accent); text-underline-offset: 4px; }
  .preview-panel .mobile-workbench-link { margin-left: auto; }
  .workspace .fields { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 16px 12px; }
  .workspace .fields > :is(.field:first-child, .toggle-grid, .settings-footer), .workspace .fields > .field:has(#gammaRange) { grid-column: 1/-1; }
  .workspace .preset-bar { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .workspace .preset-button { font-size: 17px; }
  .workspace .field select { font-size: 17px; padding-inline: 7px; }
  .workspace .field-hint { font-size: 16px !important; }
  .mobile-quick-controls { display: grid; gap: 6px; margin: 8px 0 12px; padding: 10px 12px; border: 1px solid var(--line); border-radius: 5px; }
  .workspace .mobile-quick-controls .field { display: grid; grid-template-columns: 1fr; margin: 0; }
  .workspace .mobile-quick-controls .field-row { font-size: 18px; }
  .quick-control-hint { font: 16px/1.2 var(--font-ui); color: var(--muted); }
  .mobile-quick-controls input { width: 100%; accent-color: var(--accent); }
  .workspace .fields > .field:has(#charsetSelect) { grid-column: 1/-1; }
  .workspace .demo-title { flex-basis: 100%; }
  .workspace .demo-bar { display: grid; grid-template-columns: repeat(3,44px) minmax(0,1fr); gap: 6px; padding: 10px; }
  .workspace .demo-bar .demo-title { grid-column: 1/-1; margin: 0; }
  .workspace .demo-bar .demo-title small { display: none; }
  .workspace .demo-bar button { min-width: 0; padding: 6px; font-size: 16px; }
  .workspace .demo-bar .demo-use { margin-left: 0; white-space: normal; }
  .workspace .actions { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 6px; }
  .workspace .actions button { margin: 0; padding: 9px 5px; font-size: 17px; }
  .workspace .export-grid { grid-template-columns: 1fr 1fr; }
  .workspace .advanced-grid { grid-template-columns: 1fr 1fr; gap: 20px 16px; }
  .workspace .advanced-grid .field:has(#gammaRange) { grid-template-columns: 1fr; gap: 8px; }
  .workspace .advanced-grid .field:has(#gammaRange) .field-hint { grid-column: auto; }
  .workspace .advanced-summary-hint { display: none; }
  .tuning-panel { padding: 0 18px; }
  .tuning-preview-link { display: none; }
  .advanced-controls[open] + .tuning-preview-link { display: inline-flex; margin-bottom: 12px; }
  .workspace .preview-panel.is-expanded { inset: 8px; padding: 16px; }
  .workspace .preview-panel.is-expanded .ascii-frame { height: calc(100dvh - 320px); }
  .workspace .preview-panel.is-expanded .mobile-workbench-link { display: none; }
}
@media (max-width: 359px) {
  .workspace .fields, .workspace .advanced-grid { grid-template-columns: 1fr; }
  .workspace .preset-bar { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .workspace .demo-bar button { font-size: 16px; }
}
@media (max-width: 540px) {
  .workspace .sample-actions:has(.sample-tile) { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .sample-tile-name { font-size: 19px; }
}

/* A shorter introduction and a result-first workbench. Reading content remains
   in the HTML at every breakpoint; the artwork keeps its original proportions. */
:root { --font-reading: var(--font-ui); }
.header-inner { height: 76px; }
nav a { display: inline-flex; align-items: center; min-height: 44px; }
.hero-stage { min-height: 0; gap: 40px; margin-bottom: 30px; padding-bottom: 24px; }
.hero-copy { padding: 20px 0; }
.hero-proof { max-width: 570px; justify-self: end; }
.hero-compare { aspect-ratio: 1; }
.ascii-heading { max-width: 520px; height: auto !important; }
.hero-copy .lead { font: 24px/1.35 var(--font-reading); max-width: 45ch; margin-top: 24px; }
.hero-tags { font: 18px/1.4 var(--font-reading); gap: 8px 18px; margin-top: 18px; }
.hero-tags span { font-family: inherit; }
.hero-guide-links { margin-top: 14px; gap: 4px 16px; }
.hero-guide-links a { min-height: 32px; display: inline-flex; align-items: center; font-size: 17px; }
.proof-caption { font: 18px/1.4 var(--font-ui); }
.hero-guide-links { font-family: var(--font-ui); }
.output-stats,.status,.case-number,.case-recipe,.use-code { font-family: var(--font-ui); }
.workspace label output { font-family: var(--font-ui); font-size: 18px; }
.content-section { padding-block: 48px; }
.section-intro p,.feature-grid p,.info-card p,.use-list p,.practical-copy > p:not(.practical-tagline),.faq-list p {
  font-family: var(--font-reading); font-size: 22px; line-height: 1.5;
}
.feature-grid { gap: 24px 32px; }
.practical-copy .practical-tagline { font-size: 25px; }
.workspace .preview-panel .output-stats { line-height: 1.3; margin-top: 0; }
.workspace .preview-tools { display: flex; justify-content: flex-end; gap: 8px; margin-bottom: 12px; }
.view-options { position: relative; margin-right: auto; }
.view-options > summary { display: flex; align-items: center; min-height: 44px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 4px; cursor: pointer; font-size: 18px; }
.view-options > summary::after { content: '+'; margin-left: 10px; color: var(--accent); }
.view-options[open] > summary::after { content: '−'; }
.view-options-menu { position: absolute; top: calc(100% + 6px); left: 0; z-index: 5; min-width: 190px; display: grid; gap: 6px; padding: 10px; border: 1px solid var(--line); border-radius: 6px; background: var(--surface); }
.workspace .view-options-menu button { width: 100%; }
.workspace .actions { display: grid; grid-template-columns: 1.35fr 1fr 1fr; gap: 8px; }
.workspace .actions button { margin: 0; min-width: 0; }
.workspace .actions .primary-action { background: var(--accent); color: #111315; }
.workspace .export-grid .secondary-button { margin: 0; width: 100%; }
.quick-style { min-width: 0; display: grid; gap: 4px; font-size: 17px; }
.quick-style select { min-width: 0; width: 100%; min-height: 44px; border: 1px solid var(--line); border-radius: 4px; padding: 6px 8px; background: var(--surface); color: var(--ink); font-size: 18px; }
.preview-panel:has(.ascii-demo:not([hidden])) .view-options { display: none; }
.view-options summary:focus-visible,.quick-style select:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
@media (max-width: 960px) {
  .workspace .preview-panel { order: initial; }
  .workspace .mobile-quick-controls { display: grid; grid-template-columns: minmax(0,1.2fr) minmax(0,1fr); gap: 12px; margin: 12px 0 0; padding: 0; border: 0; }
  .workspace .mobile-quick-controls input[type=range] { min-height: 44px; margin: 0; }
  .workspace .preview-panel > .panel-title { margin-bottom: 8px; }
  .workspace .preview-panel .output-stats { font-size: 15px; }
  .workspace .preview-tools { flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
  .view-options > summary { font-size: 17px; padding-inline: 8px; }
  .workspace .ascii-frame { height: clamp(230px, 64vw, 380px); }
  .workspace .export-guidance,.workspace .status { font-size: 16px; line-height: 1.3; }
  .workspace .preview-panel.is-expanded .ascii-frame { height: max(240px, calc(100dvh - 340px)); }
  .workspace .fields { grid-template-columns: 1fr 1fr; }
  .workspace .upload-box { grid-template-columns: 1fr; }
  .workspace .upload-samples { grid-column: 1; }
}
@media (max-width: 767px) {
  .header-inner { min-height: 0; height: auto; padding-block: 12px 8px; gap: 8px; }
  nav { display: grid; grid-template-columns: repeat(6, minmax(0,1fr)); gap: 0; overflow: visible; width: 100%; }
  nav a { justify-content: center; font-size: 17px; }
  .hero-stage { padding-bottom: 20px; margin-bottom: 24px; }
  .hero-copy { padding: 14px 0 8px; }
  .eyebrow { margin-bottom: 14px; }
  .ascii-heading { max-width: 340px; }
  .hero-copy .lead { font-size: 22px; line-height: 1.35; margin-top: 18px; max-width: 46ch; }
  .hero-actions { margin-top: 18px; }
  .hero-primary,.hero-secondary { font-size: 19px; padding: 10px 12px; }
  .hero-tags { gap: 6px 12px; font-size: 17px; }
  .hero-guide-links { gap: 0 12px; }
  .hero-guide-links a { font-size: 16px; min-height: 44px; }
  .hero-proof { max-width: 320px; width: 100%; margin-inline: auto; }
  .hero-compare { aspect-ratio: 1.3; }
  .proof-caption { font-size: 16px; }
  .workbench-heading { gap: 8px; margin-bottom: 16px; }
  .workbench-heading h2 { font-size: 30px; }
  .workspace .preview-panel,.workspace .control-panel { padding: 14px; }
  .preview-panel .mobile-workbench-link { font-size: 16px; }
  .workspace .actions { grid-template-columns: 1.35fr 1fr 1fr; gap: 6px; }
  .workspace .actions button { font-size: 16px; padding: 8px 4px; }
  .content-section { padding-block: 34px; }
  .section-intro { margin-bottom: 20px; }
  .section-intro h2,.info-card h2 { font-size: 34px; }
  .style-gallery { gap: 28px; }
  .practical-examples { margin-top: 34px; padding-top: 26px; }
}
@media (max-width: 359px) {
  nav { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .hero-actions { display: grid; grid-template-columns: 1fr; }
  .hero-actions > * { text-align: center; justify-content: center; }
  .workspace .preview-tools { display: grid; grid-template-columns: 1fr 1fr; }
  .view-options { margin: 0; }
  .workspace #comparePreview { grid-column: 1/-1; }
  .workspace .actions { grid-template-columns: 1fr 1fr; }
  .workspace .actions .primary-action { grid-column: 1/-1; }
}
@media (min-width: 768px) and (max-width: 960px) {
  .workspace .upload-box { grid-template-columns: minmax(0,1fr) auto; }
  .workspace .upload-samples { grid-column: 1/-1; }
}
@media (max-width: 430px) {
  html[lang=fr] nav { grid-template-columns: repeat(3,minmax(0,1fr)); }
}
html[lang=fr] .hero-guide-links a::after { content: ' EN'; font-size: 12px; color: var(--muted); margin-left: 5px; }