/* Public chess overview only. The shared tool layout and catalogue keep their styles. */
body[data-tool-page="echecs"] .tool-hero {
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr);
  gap: 32px;
  padding: 38px;
}
body[data-tool-page="echecs"] .tool-hero h1 { font-size: clamp(2.1rem, 3.2vw, 3.1rem); line-height: 1.12; letter-spacing: -.045em; }
body[data-tool-page="echecs"] .tool-lead { margin-top: 20px; font-size: .95rem; line-height: 1.7; }
body[data-tool-page="echecs"] .tool-hero-actions { gap: 10px; margin-top: 24px; }
body[data-tool-page="echecs"] .tool-hero-actions .catalog-button { min-height: 48px; padding: 13px 19px; }
body[data-tool-page="echecs"] .tool-member-link { min-height: 44px; margin-top: 8px; font-size: .8rem; }
body[data-tool-page="echecs"] .tool-quick-benefits { margin-top: 16px; gap: 10px; line-height: 1.55; }
body[data-tool-page="echecs"] .tool-visual { transform: none; }
body[data-tool-page="echecs"] .tool-visual-media { min-height: 0; padding: 6px; background: #fff; }
body[data-tool-page="echecs"] .tool-visual-media img { width: 100%; max-height: none; }
body[data-tool-page="echecs"] .tool-visual figcaption { padding: 15px 18px; font-size: .78rem; line-height: 1.6; }
body[data-tool-page="echecs"] .catalog-eyebrow { text-transform: none; letter-spacing: .035em; }
body[data-tool-page="echecs"] .tool-section-heading { gap: 30px; }
body[data-tool-page="echecs"] .tool-section-heading h2,
body[data-tool-page="echecs"] .tool-method h2 { font-size: clamp(1.8rem, 2.8vw, 2.5rem); line-height: 1.16; }
body[data-tool-page="echecs"] .tool-benefit-card { padding: 26px; }
body[data-tool-page="echecs"] .tool-benefit-card h3 { margin-top: 18px; }
body[data-tool-page="echecs"] .tool-learning-path { scroll-margin-top: 28px; }
body[data-tool-page="echecs"] .tool-path-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: start; gap: 16px; }
body[data-tool-page="echecs"] .tool-path-group { min-width: 0; border: 1px solid #d6c7b4; border-radius: 18px; background: #fff; }
body[data-tool-page="echecs"] .tool-path-group summary { display: grid; grid-template-columns: 34px minmax(0, 1fr) 22px; align-items: center; gap: 12px; min-height: 112px; padding: 20px; cursor: pointer; list-style: none; border-radius: 17px; }
body[data-tool-page="echecs"] .tool-path-group summary::-webkit-details-marker { display: none; }
body[data-tool-page="echecs"] .tool-path-group summary:hover,
body[data-tool-page="echecs"] .tool-path-group[open] summary { background: var(--tool-accent-soft); }
body[data-tool-page="echecs"] .tool-path-index { color: var(--tool-accent); font-size: .83rem; font-weight: 700; }
body[data-tool-page="echecs"] .tool-path-group strong { display: block; color: var(--catalog-navy); font-size: 1rem; line-height: 1.4; }
body[data-tool-page="echecs"] .tool-path-group small { display: block; margin-top: 5px; color: #576273; font-size: .8rem; }
body[data-tool-page="echecs"] .tool-path-toggle { color: var(--tool-accent); font-size: 1.6rem; text-align: center; }
body[data-tool-page="echecs"] .tool-path-group[open] .tool-path-toggle { transform: rotate(45deg); }
body[data-tool-page="echecs"] .tool-path-group ol { margin: 0; padding: 10px 22px 22px 45px; color: #445970; font-size: .88rem; line-height: 1.6; }
body[data-tool-page="echecs"] .tool-path-group li { padding: 10px 0 10px 4px; border-bottom: 1px solid #e8edf1; }
body[data-tool-page="echecs"] .tool-path-group li:last-child { border: 0; padding-bottom: 0; }
body[data-tool-page="echecs"] .tool-path-group li::marker { color: var(--tool-accent); font-weight: 600; }
body[data-tool-page="echecs"] .tool-path-note { max-width: 850px; margin: 20px 0 0; color: #445970; font-size: .87rem; line-height: 1.7; }
body[data-tool-page="echecs"] .tool-gallery { grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: start; }
body[data-tool-page="echecs"] .tool-gallery img { padding: 5px; aspect-ratio: 1070 / 691; background: #fff; }
body[data-tool-page="echecs"] .tool-image-link { display: block; position: relative; color: var(--catalog-navy); padding-bottom: 34px; background: var(--tool-accent-soft); text-decoration: none; }
body[data-tool-page="echecs"] .tool-image-zoom-label { position: absolute; right: 12px; bottom: 7px; display: flex; gap: 8px; align-items: center; font-size: .76rem; font-weight: 600; }
body[data-tool-page="echecs"] .tool-gallery figcaption { font-size: .83rem; padding: 18px; }
body[data-tool-page="echecs"] .tool-gallery figcaption strong { display: block; margin-bottom: 8px; color: var(--catalog-navy); font-size: 1rem; line-height: 1.4; }
body[data-tool-page="echecs"] .tool-image-dialog { width: min(1140px, calc(100% - 32px)); max-width: none; max-height: calc(100vh - 32px); max-height: calc(100dvh - 32px); margin: auto; padding: 0; overflow: auto; border: 1px solid #d6c7b4; border-radius: 18px; color: var(--catalog-navy); background: #fff; box-shadow: 0 24px 90px #0005; }
body[data-tool-page="echecs"] .tool-image-dialog:not([open]) { display: none; }
body[data-tool-page="echecs"] .tool-image-dialog::backdrop { background: rgb(12 30 53 / 78%); }
body[data-tool-page="echecs"] .tool-image-dialog-heading { position: sticky; top: 0; z-index: 1; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 20px; padding: 14px 18px; border-bottom: 1px solid #d9e0e6; background: #fff; }
body[data-tool-page="echecs"] .tool-image-dialog h2 { margin: 0; font-size: 1.15rem; line-height: 1.4; }
body[data-tool-page="echecs"] .tool-image-dialog-actions { display: flex; flex-wrap: wrap; gap: 8px; }
body[data-tool-page="echecs"] .tool-image-dialog button { min-height: 44px; padding: 8px 14px; border: 1px solid #c3cbd4; border-radius: 10px; color: var(--catalog-navy); background: #fff; font: inherit; font-size: .85rem; font-weight: 600; cursor: pointer; }
body[data-tool-page="echecs"] .tool-image-dialog button:hover,
body[data-tool-page="echecs"] .tool-image-dialog button[aria-pressed="true"] { background: var(--tool-accent-soft); border-color: var(--tool-accent); }
body[data-tool-page="echecs"] .tool-image-dialog figure { margin: 0; }
body[data-tool-page="echecs"] .tool-image-scroll { overflow: auto; max-height: 65vh; max-height: 65dvh; overscroll-behavior: contain; }
body[data-tool-page="echecs"] .tool-image-dialog img { display: block; width: auto; height: auto; max-width: 100%; max-height: 65vh; max-height: 65dvh; margin: auto; }
body[data-tool-page="echecs"] .tool-image-dialog[data-original-size] img { width: 1070px; max-width: none; max-height: none; margin: 0; }
body[data-tool-page="echecs"] .tool-image-dialog figcaption { padding: 14px 18px; font-size: .86rem; line-height: 1.6; }
body[data-tool-page="echecs"] :is(.tool-hero a, .tool-image-link, .tool-path-group summary, .tool-image-dialog button, .tool-image-scroll):focus-visible { outline: 3px solid #125ba3; outline-offset: 3px; }
body[data-tool-page="echecs"] .tool-image-link:focus-visible { outline-offset: -3px; }
@media (max-width: 1200px) {
  body[data-tool-page="echecs"] .tool-hero { grid-template-columns: 1fr; gap: 28px; }
  body[data-tool-page="echecs"] .tool-section-heading { grid-template-columns: 1fr; gap: 14px; }
  body[data-tool-page="echecs"] .tool-visual { max-width: 760px; }
  body[data-tool-page="echecs"] .tool-path-grid { grid-template-columns: 1fr; }
  body[data-tool-page="echecs"] .tool-path-group summary { min-height: 86px; }
  body[data-tool-page="echecs"] .tool-gallery { grid-template-columns: 1fr; }
  body[data-tool-page="echecs"] .tool-gallery figure { max-width: 760px; }
}
@media (max-width: 760px) {
  body[data-tool-page="echecs"] .tool-hero { padding: 30px 24px 24px; }
  body[data-tool-page="echecs"] .tool-section-heading { gap: 14px; }
}
@media (max-width: 576px) {
  body[data-tool-page="echecs"] .tool-hero { padding: 28px 18px 18px; }
  body[data-tool-page="echecs"] .tool-hero h1 { font-size: 2.15rem; }
  body[data-tool-page="echecs"] .tool-lead { font-size: .91rem; }
  body[data-tool-page="echecs"] .tool-quick-benefits { font-size: .8rem; }
  body[data-tool-page="echecs"] .tool-path-group summary { padding: 18px; gap: 8px; }
  body[data-tool-page="echecs"] .tool-visual-heading { gap: 8px; padding-inline: 10px; }
  body[data-tool-page="echecs"] .tool-visual-heading small { font-size: .64rem; }
  body[data-tool-page="echecs"] .tool-image-dialog-heading { padding: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  body[data-tool-page="echecs"] { scroll-behavior: auto; }
  body[data-tool-page="echecs"] :is(a, summary) { transition: none; scroll-behavior: auto; }
  body[data-tool-page="echecs"] .tool-hero-actions a:is(:hover, :focus-visible) { transform: none; }
}
@media (forced-colors: active) {
  body[data-tool-page="echecs"] :is(.tool-path-group, .tool-image-dialog, .tool-image-link) { border: 1px solid CanvasText; }
  body[data-tool-page="echecs"] .tool-path-group[open] summary { outline: 1px solid Highlight; }
}