.checker-page{padding-top:2.5rem;padding-bottom:4rem}.checker-breadcrumb{display:flex;gap:.7rem;font-size:.75rem;color:var(--muted)}.checker-breadcrumb a{text-decoration:underline;text-underline-offset:3px}.checker-intro{display:flex;justify-content:space-between;align-items:end;gap:2rem;padding:3.5rem 0 3rem;border-bottom:1px solid var(--rule);margin-bottom:2.5rem}.checker-intro .eyebrow{display:flex;align-items:center;gap:.6rem;font-size:.625rem}.checker-intro h1{font:400 clamp(3.5rem,6.5vw,5.5rem)/1.05 var(--font-display);letter-spacing:-.035em;margin-top:1rem}.checker-intro h1 em{color:var(--accent);font-weight:400}.checker-intro>p{font-size:.9375rem;line-height:1.75;max-width:20rem;padding-bottom:.25rem}.checker-layout{max-width:56rem;margin-inline:auto}.checker-form{--checker-padding:clamp(1.25rem,3vw,2rem);padding:var(--checker-padding);border:1px solid var(--rule);border-radius:14px;background:var(--surface-raised)}.checker-form fieldset{padding:0 0 1.5rem;margin:0 0 1.5rem;border:0;border-bottom:1px solid var(--rule)}.checker-form legend{display:flex;align-items:center;gap:.7rem;padding:0;margin-bottom:1.4rem;font:400 1.65rem var(--font-display);color:var(--ink)}.checker-form legend>span{font:400 .6875rem var(--font-body);color:var(--accent)}.checker-form label{display:block;font-size:.8125rem;color:var(--ink);margin-bottom:.5rem}.checker-form label span{color:var(--muted);font-size:.6875rem}.checker-form input,.checker-form select{font:400 .875rem var(--font-body);width:100%;height:46px;border:1px solid var(--rule);border-radius:4px;color:var(--ink);background:var(--surface-raised);padding:.6rem .75rem;box-shadow:0 1px 2px #00000003}.checker-form select{padding-right:1.7rem}.checker-form input::placeholder{color:var(--muted);opacity:.7}.checker-form input:focus,.checker-form select:focus{outline:2px solid var(--focus);outline-offset:2px}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.2rem 1rem}.full-width{grid-column:1/-1}.field-help{font-size:.75rem;line-height:1.65;color:var(--muted);margin-top:.5rem}.model-note{font-size:.8125rem;line-height:1.65;color:var(--muted);margin:.9rem 0 1.2rem}.model-note:empty{display:none}.model-note a,.explainer-copy a{color:var(--accent);text-decoration:underline;text-underline-offset:3px}.model-note strong{color:var(--ink);font-weight:500}.model-note p+p{margin-top:.4rem}.detect-row{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.detect-row>span{font-size:.75rem;color:var(--muted)}.checker-button{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;border:1px solid var(--accent);padding:.75rem 1.1rem;min-height:44px;border-radius:3rem;font:500 .8125rem var(--font-body);background:var(--accent);color:var(--surface);cursor:pointer}.checker-button:hover{background:var(--ink);border-color:var(--ink)}.checker-button:disabled{cursor:wait;opacity:.6}.checker-button.secondary{background:transparent;color:var(--accent)}.checker-button.secondary:hover{background:var(--surface-sunken)}.detection-status{padding:.8rem 0 1.25rem;margin:0}.detection-status.detected{color:var(--ink)}.spec-help{margin-top:1.25rem;font-size:.75rem;line-height:1.7}.spec-help summary{color:var(--muted);padding:.4rem 0;list-style:revert}.spec-help p{margin-top:.65rem}.spec-help label{margin-top:.8rem}.spec-help input{max-width:12rem}.spec-help strong{font-weight:500;color:var(--ink)}.checker-form .checker-settings{border:0;padding-bottom:0;margin-bottom:1.5rem}.checker-actions{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:1rem}.check-button{flex:none}.checker-privacy{margin:0;font-size:.6875rem;color:var(--muted);line-height:1.6}.checker-result{position:static;background:var(--surface-sunken);border:0;border-top:1px solid var(--rule);border-radius:0 0 14px 14px;padding:var(--checker-padding);margin:1.5rem calc(-1 * var(--checker-padding)) calc(-1 * var(--checker-padding))}.result-live{display:grid;grid-template-columns:auto minmax(0,1fr);gap:.5rem 1rem}.result-live .eyebrow{grid-column:1/-1;margin-bottom:.75rem}.result-live h2,.result-live #result-summary{grid-column:2}.checker-result .eyebrow{font-size:.625rem}.result-symbol{display:grid;place-items:center;width:2.75rem;height:2.75rem;border:1px solid var(--rule);border-radius:50%;font:400 1.8rem var(--font-display);color:var(--accent);margin:0;grid-column:1;grid-row:2 / 4}.checker-result h2{font:400 clamp(1.8rem,3vw,2.5rem)/1.12 var(--font-display);letter-spacing:-.02em}.checker-result #result-summary{font-size:.875rem;line-height:1.75;margin-top:0;max-width:65ch}.result-footnote{display:flex;gap:.75rem;border-top:1px solid var(--rule);padding-top:1.25rem;margin-top:2.5rem;color:var(--muted);font-size:.6875rem;line-height:1.65}.result-footnote>span{font-size:1.3rem;line-height:1}.checker-result[data-status=fits] .result-symbol{color:var(--ink);background:color-mix(in srgb,var(--accent) 12%,transparent);border-color:var(--accent)}.checker-result[data-status=no-fit] .result-symbol,.checker-result[data-status=unsupported] .result-symbol{border-color:var(--accent);background:var(--accent);color:var(--surface)}.memory-meter{margin-top:1.7rem}.meter-label{display:flex;justify-content:space-between;gap:.5rem;font-size:.6875rem;line-height:1.5}.meter-label strong{color:var(--ink);font-weight:500;text-align:right}#memory-progress{appearance:none;display:block;width:100%;height:7px;border:0;border-radius:8px;overflow:hidden;margin-top:.65rem;background:var(--rule)}#memory-progress::-webkit-progress-bar{background:var(--rule);border-radius:8px}#memory-progress::-webkit-progress-value{background:var(--accent);border-radius:8px}#memory-progress::-moz-progress-bar{background:var(--accent);border-radius:8px}.memory-breakdown{margin:1rem 0 0}.memory-breakdown>div{display:flex;justify-content:space-between;gap:1rem;font-size:.75rem;line-height:1.6;margin-top:.5rem}.memory-breakdown dt{color:var(--muted)}.memory-breakdown dd{margin:0;color:var(--ink)}.memory-breakdown>div:last-child{border-top:1px solid var(--rule);padding-top:.65rem;margin-top:.65rem}.result-reasons{padding-left:1rem;margin:1.5rem 0 0;font-size:.75rem;line-height:1.7}.result-reasons li+li{margin-top:.4rem}.result-advice{font-size:.75rem;line-height:1.7;color:var(--ink)}.result-advice:empty{display:none}.result-advice p{margin-top:.75rem}.checker-explainer{border-top:1px solid var(--rule);margin-top:4rem;padding-top:3rem;display:grid;grid-template-columns:1fr 1.5fr;gap:3rem}.checker-explainer .eyebrow{font-size:.625rem}.checker-explainer h2{font:400 2.7rem/1.1 var(--font-display);letter-spacing:-.02em;margin-top:1rem}.checker-explainer h2 em{font-weight:400}.explainer-copy{font-size:.875rem;line-height:1.8}.explainer-copy details{border-bottom:1px solid var(--rule);margin-top:.75rem;padding-bottom:.75rem}.explainer-copy summary{color:var(--ink);padding-block:.5rem;list-style:revert}.explainer-copy details p{margin-block:.75rem}.explainer-copy .catalog-date{font-size:.6875rem;color:var(--muted);margin-top:1.5rem}.checker-notice{padding:1rem;border:1px solid var(--rule);margin-bottom:2rem}
@media(max-width:1000px){.checker-intro>p{max-width:16rem}}
@media(max-width:750px){.checker-intro{display:block;padding-top:2.5rem}.checker-intro>p{max-width:26rem;margin-top:1.5rem}.checker-intro h1{font-size:clamp(3.2rem,10vw,4.5rem)}.checker-explainer{grid-template-columns:1fr;gap:1.5rem}.result-live{gap:.5rem .75rem}.result-symbol{width:2.25rem;height:2.25rem;font-size:1.5rem}.checker-result #result-summary{max-width:none}.tool-banner{display:block}.tool-banner .primary-link{margin-top:1rem}}
@media(max-width:550px){.field-grid{grid-template-columns:1fr}}
@media(max-width:400px){.checker-page{padding-inline:1.25rem}.checker-form legend{font-size:1.5rem}}

.runtime-note{font-size:.75rem;line-height:1.7;margin-top:1.3rem;color:var(--muted)}.checker-result{scroll-margin-top:calc(var(--site-header-height,53px) + 1rem)}.result-assumptions .result-reasons{margin-top:.5rem}

#detection-details{margin-top:-.75rem;margin-bottom:1.25rem}#detection-notes{padding-left:1.1rem;color:var(--muted)}#detection-notes li+li{margin-top:.5rem}

/* Match the disclosure chevrons to the form controls. */
.spec-help>summary,.explainer-copy details>summary{display:flex;align-items:center;gap:.65rem;list-style:none;min-height:40px}
.spec-help>summary::before,.explainer-copy details>summary::before{content:"";width:6px;height:6px;flex:none;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(-45deg);margin-left:.15rem;transition:transform .15s}
.spec-help[open]>summary::before,.explainer-copy details[open]>summary::before{transform:rotate(45deg)}

/* One form owns the model, setup, and result; keep overflow visible for field menus. */
.checker-model legend{font-size:2rem;margin-bottom:.6rem}
.checker-live-hint{font-size:.8125rem;line-height:1.65;color:var(--muted);margin-bottom:1.4rem}
.checker-model .model-trigger{min-height:104px;padding:1.25rem;border-color:color-mix(in srgb,var(--accent) 38%,var(--rule));background:var(--surface);gap:1rem}
.checker-model .model-trigger-mark{width:48px;height:52px;font-size:2.25rem}
.checker-model .model-trigger-copy strong{font-family:var(--font-display);font-size:1.85rem;font-weight:400;line-height:1.15}
.checker-model .model-trigger-download strong{font-size:1rem}
.checker-model .model-picker-hint{font-size:.75rem}
@media(max-width:550px){.checker-model .model-trigger{display:grid;grid-template-columns:minmax(0,1fr) auto;padding:1rem;gap:.75rem}.checker-model .model-trigger-mark{display:none}.checker-model .model-trigger-copy{grid-column:1;grid-row:1}.checker-model .model-trigger-copy strong{font-size:1.6rem}.checker-model .model-trigger-download{grid-column:1;grid-row:2;flex-direction:row;align-items:baseline;gap:.4rem}.checker-model .picker-chevron{grid-column:2;grid-row:1 / 3}.result-live #result-summary{grid-column:1/-1}.checker-actions{align-items:flex-start;flex-direction:column}}