:root{--accent:#0969da;--accent-dark:#0759b8;--text:#1f2933;--muted:#52606d;--border:#d9e2ec;--surface:#f7f9fb;--focus:#b45309}*{box-sizing:border-box}body{color:var(--text);background:#fff;margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.6}.embed-body main{padding-top:0}a{color:var(--accent)}a:hover{color:var(--accent-dark)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--focus);outline-offset:3px}select{border:1px solid var(--border);max-width:100%;min-height:44px;font:inherit;color:var(--text);background:#fff;border-radius:4px;padding:6px}main,.site-header,.site-footer{width:min(100% - 32px,720px);margin:0 auto}main{padding:28px 0 44px}h1,h2,h3,p{margin-top:0}h1{overflow-wrap:anywhere;margin-bottom:12px;font-size:2.1rem;line-height:1.15}h2{margin:36px 0 10px;font-size:1.35rem;line-height:1.25}h3{margin-bottom:6px;font-size:1.05rem}.skip-link{border:2px solid var(--accent);z-index:20;background:#fff;padding:8px 10px;position:absolute;top:12px;left:16px;transform:translateY(-140%)}.skip-link:focus{transform:translateY(0)}.site-header{border-bottom:1px solid var(--border);padding:8px 0}.site-name{width:300px;max-width:100%;color:var(--text);font-weight:700;text-decoration:none;display:block}.site-logo{aspect-ratio:5/2;object-fit:cover;object-position:center 60%;width:100%;height:auto;display:block}.site-footer{border-top:1px solid var(--border);color:var(--muted);padding:28px 0 36px}.site-footer nav{flex-wrap:wrap;gap:14px;margin-bottom:8px;display:flex}.breadcrumb{color:var(--muted);gap:8px;margin-bottom:18px;font-size:.95rem;display:flex}.intro{color:var(--muted);font-size:1.08rem}.tool-panel{border:1px solid var(--border);background:var(--surface);border-radius:8px;gap:16px;margin:22px 0 26px;padding:18px;display:grid}.tool-panel h2{margin-top:0}button{cursor:pointer;min-height:44px;font:inherit;border:0;border-radius:6px;font-weight:700}.primary-button,.secondary-button{width:fit-content;max-width:100%;padding:10px 16px}.primary-button{color:#fff;background:var(--accent)}.primary-button:hover{background:var(--accent-dark)}.secondary-button{color:var(--accent);border:1px solid var(--accent);background:#fff}.tool-list{padding-left:20px}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:28px 0 0;padding:0;list-style:none;display:grid}.tool-grid>li{min-width:0}.tool-card{--category-color:#08785a;border:1px solid var(--border);border-top:3px solid var(--category-color);height:100%;color:var(--text);overflow-wrap:anywhere;background:#fff;border-radius:8px;flex-direction:column;padding:18px 20px;text-decoration:none;transition:border-color .15s,box-shadow .15s;display:flex}.tool-card[data-category=Display]{--category-color:#0969da}.tool-card[data-category=Audio]{--category-color:#a12c63}.tool-card[data-category=Camera]{--category-color:#865b0a}.tool-card:hover,.tool-card:focus-visible{color:var(--text);border-color:var(--category-color);box-shadow:0 4px 14px #1f293312}.tool-card-meta{justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px;font-size:.75rem;display:flex}.tool-category{color:var(--category-color);text-transform:uppercase;font-weight:700}.tool-number{color:var(--muted);font-variant-numeric:tabular-nums}.tool-card h2{margin:0 0 8px;font-size:1.15rem;line-height:1.3}.tool-card p{color:var(--muted);margin:0 0 18px;font-size:.95rem}.tool-card-action{color:var(--category-color);justify-content:space-between;align-items:center;gap:12px;margin-top:auto;font-size:.85rem;font-weight:700;display:flex}@media (width<=539px){.tool-grid{grid-template-columns:minmax(0,1fr);gap:12px}}@media (prefers-reduced-motion:reduce){.tool-card{transition:none}}.faq-item{border-top:1px solid var(--border);padding-top:16px}.reviewed{color:var(--muted);margin-top:30px}.ad-slot{border:1px dashed var(--border);height:250px;margin:28px 0}.pixel-test-overlay{z-index:1000;cursor:default;place-items:start center;padding-top:24px;display:grid;position:fixed;inset:0}.pixel-test-overlay.is-idle{cursor:none}.pixel-test-hint{color:#fff;text-align:center;background:#000000c7;border-radius:6px;max-width:min(92vw,560px);padding:10px 14px;transition:opacity .18s}.pixel-test-hint.is-hidden{opacity:0}.measurement-panel{grid-template-columns:minmax(0,1fr)}.measurement-panel h2,.measurement-panel p{margin:0}.tool-actions{flex-wrap:wrap;gap:8px;display:flex}button:disabled{opacity:.6;cursor:default}.measurement{font-variant-numeric:tabular-nums;min-height:2.4em;font-size:1.5rem;font-weight:700}.tool-status{color:var(--muted);overflow-wrap:anywhere;min-height:3.2em}progress{width:100%;height:12px;accent-color:var(--accent)}.timing-track{background:var(--border);height:24px;position:relative;overflow:hidden}.timing-track span{background:var(--accent);width:12px;height:24px;position:absolute;left:5%}.level-control{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.level-control input{min-width:80px;max-width:100%;min-height:44px;accent-color:var(--accent);flex:1}.level-control output{font-variant-numeric:tabular-nums;min-width:65px}.click-target{width:100%;min-height:100px;color:var(--accent);border:2px solid var(--accent);user-select:none;touch-action:manipulation;background:#fff}.click-target:active{background:var(--border)}.click-counters{font-variant-numeric:tabular-nums;flex-wrap:wrap;gap:8px 20px;display:flex}.click-history{min-height:1.6em;margin:0;padding-left:24px}.key-capture{border:1px solid var(--border);min-width:0;padding:8px}.key-grid{gap:6px;display:grid}.key-row{flex-wrap:wrap;gap:4px;display:flex}.key-cell,.pad-button{border:1px solid var(--border);font-variant-numeric:tabular-nums;background:#fff;border-radius:4px;place-items:center;min-width:28px;min-height:32px;padding:4px 6px;font-size:.75rem;display:inline-grid}.key-seen{border-color:var(--accent);color:var(--accent)}.key-held{background:var(--accent);color:#fff;border-color:var(--accent)}.extra-keys,.device-detail{overflow-wrap:anywhere}.gamepad-buttons{grid-template-columns:repeat(auto-fill,minmax(75px,1fr));gap:6px;display:grid}.gamepad-axes{gap:8px;display:grid}.axis-row{font-variant-numeric:tabular-nums;grid-template-columns:60px minmax(0,1fr) 60px;align-items:center;gap:6px;display:grid}meter{width:100%;height:24px}.pointer-area{border:2px dashed var(--accent);background:#fff;height:180px;position:relative;overflow:hidden}.pointer-area span{background:var(--accent);pointer-events:none;width:12px;height:12px;position:absolute}.checkbox-control{align-items:center;gap:8px;min-height:44px;display:flex}.checkbox-control input{width:20px;height:20px;accent-color:var(--accent)}.camera-stage{aspect-ratio:4/3;color:#fff;background:#141414;place-items:center;display:grid;position:relative;overflow:hidden}.camera-stage video{object-fit:contain;width:100%;height:100%;position:absolute}.camera-stage span{z-index:1}.mirrored{transform:scaleX(-1)}audio{width:100%}[hidden]{display:none!important}@media (width>=620px){.tool-panel:not(.measurement-panel){grid-template-columns:1fr auto;align-items:center}}