/* PNG transparency checker + chair sample. Extends styles.css tokens. */
.pngc[hidden],.pngc [hidden]{display:none!important}
.pngc-drop{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;text-align:center;min-height:190px;padding:26px 18px;border:2px dashed var(--mat-line-2);border-radius:16px;background:rgba(255,255,255,.04);transition:background .15s,border-color .15s}
.pngc-drop[data-over]{background:rgba(255,255,255,.12);border-color:var(--sun)}
.pngc-drop p{margin:0;color:#cfe4da;font-size:.92rem}
.pngc-drop .btn{min-height:50px}
.pngc-status{min-height:1.5em;margin:14px 2px 0;font:600 .9rem/1.45 var(--body);color:#e8f2ec}
.pngc-status[data-error]{color:#fff;background:rgba(232,103,74,.22);border:1px solid rgba(232,103,74,.6);border-radius:12px;padding:12px 14px}
.pngc-result{margin-top:14px;background:var(--card);color:var(--ink);border-radius:16px;padding:18px 20px}
.pngc-result:focus{outline:none}
.pngc-result:focus-visible{outline:3px solid var(--sun);outline-offset:3px}
.pngc-verdict{font:700 1.5rem/1.15 var(--display);letter-spacing:-.015em;margin:0 0 6px;display:flex;align-items:center;gap:10px}
.pngc-verdict::before{content:"";flex:none;width:14px;height:14px;border-radius:50%;background:var(--muted)}
[data-verdict-kind="transparent"] .pngc-verdict::before{background:#2f9e62}
[data-verdict-kind="partial"] .pngc-verdict::before{background:var(--sun)}
[data-verdict-kind="opaque"] .pngc-verdict::before,[data-verdict-kind="blank"] .pngc-verdict::before{background:var(--coral)}
.pngc-result > p{margin:0 0 12px;color:var(--ink-2)}
.pngc-stats{display:grid;grid-template-columns:auto minmax(0,1fr);gap:4px 14px;margin:0;font-size:.92rem}
.pngc-stats dt{font:600 .74rem/1.9 var(--mono);text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.pngc-stats dd{margin:0;font-variant-numeric:tabular-nums;overflow-wrap:anywhere}
.pngc-notes{margin:12px 0 0;padding-left:1.1em;font-size:.9rem;color:var(--ink-2)}
.pngc-notes li{margin:.3em 0}
.pngc-preview{margin:14px 0 0}
.pngc-canvas{display:grid;place-items:center;border-radius:14px;overflow:hidden;box-shadow:0 0 0 1px rgba(255,255,255,.14);padding:10px;min-height:120px}
.pngc-canvas canvas{display:block;max-width:100%;max-height:420px;width:auto;height:auto}
.pngc-preview[data-bg="checker"] .pngc-canvas,.panel-checker{background-color:var(--chk-b);background-image:repeating-conic-gradient(var(--chk-a) 0 25%,transparent 0 50%);background-size:22px 22px}
.pngc-preview[data-bg="light"] .pngc-canvas,.panel-light{background:var(--paper)}
.pngc-preview[data-bg="dark"] .pngc-canvas,.panel-dark{background:#101114}
.pngc-preview[data-bg="alpha"] .pngc-canvas{background:#6d28d9}
.panel-white{background:#fff}
.pngc-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.pngc-actions button{font:600 .88rem/1 var(--body);min-height:44px;padding:10px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.35);background:transparent;color:#fff;cursor:pointer}
.pngc-actions button:hover{background:rgba(255,255,255,.1)}
.pngc-cta{margin:14px 2px 0;font-size:.92rem;color:#d9e9e1}
.pngc-cta a{color:#fff;font-weight:650}
.pngc-fallback{background:var(--card);color:var(--ink);border-radius:14px;padding:16px 18px;margin:0}
.legend{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;list-style:none;margin:0;padding:0}
.legend li{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px 20px 22px}
.legend h3{display:flex;align-items:center;gap:10px;font-size:1.15rem;margin-bottom:8px}
.legend h3::before{content:"";flex:none;width:12px;height:12px;border-radius:50%;background:var(--dot,var(--muted))}
.legend p{margin:0;color:var(--ink-2);font-size:.96rem}
.sample-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:0}
.sample-grid figure{margin:0}
.sample-grid .frame{aspect-ratio:4/5;border-radius:14px;overflow:hidden;border:1px solid var(--line);display:grid;place-items:center}
.sample-grid .frame img{width:100%;height:100%;object-fit:contain}
.sample-grid figcaption{font:600 .72rem/1.3 var(--mono);text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin-top:8px}
.provenance{font-size:.92rem;color:var(--ink-2);background:var(--card);border:1px solid var(--line);border-left:6px solid var(--mint);border-radius:var(--r-sm);padding:14px 16px;margin:18px 0}
.provenance strong{color:var(--ink)}
.download-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:18px 0 0}
.demo-note{font-size:.84rem;color:#cfe4da;margin:12px 2px 0;line-height:1.5}
.demo-note a{color:#fff}
@media (max-width:980px){.legend{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.sample-grid{grid-template-columns:1fr 1fr}}
@media (max-width:620px){.legend{grid-template-columns:minmax(0,1fr)}.pngc-verdict{font-size:1.3rem}.pngc-actions button{flex:1 1 auto}}
.download-row .btn-price{background:var(--paper-2);color:var(--ink);white-space:nowrap}