:root{color:#102a43;background:#f1f5f9;font-family:Avenir Next,Segoe UI,sans-serif;line-height:1.5}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at top right,rgba(13,148,136,.18),transparent 52%),radial-gradient(circle at bottom left,rgba(59,130,246,.14),transparent 48%),#f8fafc}a{color:#0f766e}.page-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.card{width:min(760px,100%);background:#fff;border:1px solid #dbe7f1;border-radius:18px;padding:28px;box-shadow:0 18px 45px rgba(15,23,42,.08)}.title{margin:0 0 8px;font-size:clamp(1.5rem,3vw,2rem)}.subtitle{margin:0 0 18px;color:#4a6178}.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:18px}.button{border:0;border-radius:10px;padding:12px 16px;font-weight:600;cursor:pointer}.button-primary{background:#0f766e;color:#fff}.button-secondary{background:#dbe7f1;color:#102a43}.button:disabled{opacity:.55;cursor:not-allowed}.form-grid{display:grid;grid-gap:10px;gap:10px;margin-top:10px}.field-label{margin:6px 0 0;font-weight:600;color:#243b53}.text-input{width:100%;border:1px solid #bcccdc;border-radius:10px;padding:11px 12px;font:inherit;background:#fff;color:#102a43}.text-input:focus-visible{outline:2px solid rgba(15,118,110,.2);border-color:#0f766e}.status{color:#334e68}.error,.status{margin-top:12px;font-size:.95rem}.error{color:#b42318;font-weight:600}.meta-list{margin:16px 0 0;padding-left:20px;color:#334e68}.code-block{margin:12px 0 0;background:#f8fafc;border:1px solid #dbe7f1;border-radius:10px;padding:14px;overflow-x:auto;font-size:.9rem}.demo-header{display:flex;justify-content:space-between;align-items:flex-start;gap:14px}.demo-nav{display:flex;gap:14px;flex-wrap:wrap;margin:2px 0 18px}.demo-nav a{display:inline-flex;align-items:center;border-radius:999px;padding:8px 12px;background:#e0f2f1;border:1px solid #99f6e4;color:#115e59;font-weight:600;text-decoration:none}.result-panel{margin-top:18px;border:1px solid #dbe7f1;border-radius:12px;padding:14px;background:#f8fafc}.result-panel h3{margin:0}.result-panel code{overflow-wrap:anywhere;word-break:break-word}.copy-row{display:flex;gap:10px;align-items:flex-start;margin-top:6px;margin-bottom:12px}.code-value{display:block;background:#fff;border:1px solid #dbe7f1;border-radius:8px;padding:9px 10px;overflow-x:auto;flex:1 1;min-width:0;max-width:100%;white-space:pre-wrap;overflow-wrap:anywhere;word-break:break-word}.advanced-panel{margin-top:6px;border:1px solid #dbe7f1;border-radius:12px;padding:0 12px 12px;background:#f8fafc;display:grid;grid-gap:10px;gap:10px}.advanced-panel summary{cursor:pointer;list-style:none;font-weight:600;color:#243b53;padding-top:10px}.advanced-panel summary::-webkit-details-marker{display:none}.advanced-panel summary:before{content:"▸";margin-right:6px}.advanced-panel[open] summary:before{content:"▾"}.debug-panel{margin-top:16px;border:1px dashed #93c5fd;border-radius:10px;background:#f8fbff}.debug-panel summary{padding:10px 12px;cursor:pointer;font-weight:600}.debug-panel pre{margin:0;padding:0 12px 12px;font-size:.8rem;white-space:pre-wrap}@media (max-width:640px){.card{padding:20px;border-radius:14px}.button-row .button{width:100%}.copy-row,.demo-header{flex-direction:column}.copy-row .button{width:100%}}