:root{--sand:#f6efe4;--ink:#1d1a16;--acc:#c9772b;--acc2:#1f7a5a;--mut:#6b6358}
*{box-sizing:border-box}body{margin:0;font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--sand)}
.demo{background:var(--ink);color:#fff;text-align:center;font-size:.85rem;padding:8px}.demo a{color:#f3c38f}
.w{max-width:560px;margin:0 auto;padding:16px}
.steps{display:flex;gap:6px;margin:8px 0 14px}.steps div{flex:1;text-align:center;font-size:.78rem;padding:8px 4px;border-radius:8px;background:#eadfce;color:var(--mut)}
.steps .on{background:var(--acc);color:#fff;font-weight:700}.steps .done{background:var(--acc2);color:#fff}
.explain{font-size:1.05rem;margin:0 0 14px}
.card{background:#fff;border:1px solid #eadfce;border-radius:14px;padding:16px;margin-bottom:14px}
label{display:block;font-size:.85rem;color:var(--mut);margin:8px 0 4px}
input,textarea{width:100%;padding:12px;border:1px solid #d8ccb9;border-radius:10px;font-size:1rem;font-family:inherit}
.item{display:grid;grid-template-columns:1fr 60px 100px 32px;gap:6px;margin-bottom:6px}.item input{padding:10px}
.x{border:0;background:none;font-size:1.2rem;color:var(--mut)}
.btn{display:block;width:100%;text-align:center;background:var(--acc);color:#fff;padding:16px;border-radius:12px;text-decoration:none;font-weight:700;border:0;font-size:1.1rem;cursor:pointer;margin:10px 0}
.btn.g{background:#25d366}.btn.s{background:#fff;color:var(--ink);border:1px solid #d8ccb9;font-size:.95rem;padding:12px}
.row{display:flex;justify-content:space-between;padding:4px 0}.tot{font-weight:800;font-size:1.25rem;border-top:1px solid #eee;margin-top:6px;padding-top:8px}
details summary{cursor:pointer;font-weight:600}.mut{color:var(--mut);font-size:.88rem}
.tl{border-left:3px solid var(--acc);padding-left:12px;margin:10px 0}
table{width:100%;border-collapse:collapse}td,th{padding:8px 4px;border-bottom:1px solid #eee;text-align:left;font-size:.92rem}td:last-child,th:last-child{text-align:right}
.hide{display:none}.big{font-size:3rem;text-align:center}