:root{--bg:#f7f7f5;--card:#fff;--ink:#1d1d1f;--muted:#666;--line:#ddd;--acc:#0b6e4f;--acc2:#e8f3ee}
*{box-sizing:border-box}
body{margin:0;font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--ink)}
header.top{background:var(--card);border-bottom:1px solid var(--line)}
header.top .in,main,footer .in{max-width:1000px;margin:0 auto;padding:0 16px}
header.top .in{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;padding-top:12px;padding-bottom:12px}
.logo{font-weight:700;color:var(--acc);text-decoration:none;font-size:1.15rem}
nav a{color:var(--ink);margin-left:14px;text-decoration:none;font-size:.95rem}
nav a:hover{text-decoration:underline}
h1{font-size:1.7rem;margin:24px 0 4px}
.lead{color:var(--muted);margin:0 0 20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:16px;margin-bottom:16px}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
@media (max-width:720px){.grid{grid-template-columns:1fr}}
label{display:block;font-size:.85rem;color:var(--muted);margin:8px 0 2px}
input,select,textarea{width:100%;padding:8px;border:1px solid var(--line);border-radius:6px;font:inherit;background:#fff}
textarea{resize:vertical}
table{width:100%;border-collapse:collapse}
th,td{padding:6px 4px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
td.num,th.num{text-align:right}
.lines input{padding:6px}
button{font:inherit;padding:9px 14px;border-radius:6px;border:1px solid var(--acc);background:var(--acc);color:#fff;cursor:pointer}
button.sec{background:#fff;color:var(--acc)}
button.x{background:none;border:none;color:#a00;padding:4px 8px}
.actions{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.totals{margin-left:auto;max-width:340px}
.totals div{display:flex;justify-content:space-between;padding:3px 0}
.totals .big{font-weight:700;font-size:1.15rem;border-top:2px solid var(--ink);margin-top:4px;padding-top:6px}
.note{background:var(--acc2);border-radius:8px;padding:10px 12px;font-size:.9rem}
.small{font-size:.85rem;color:var(--muted)}
footer{margin-top:40px;border-top:1px solid var(--line);background:var(--card)}
footer .in{padding-top:16px;padding-bottom:24px;font-size:.85rem;color:var(--muted)}
.result{font-size:1.1rem}
.result b{font-size:1.3rem}
/* Vista de factura imprimible */
#factura{display:none}
@media print{
  body{background:#fff}
  header.top,footer,.no-print,#editor{display:none!important}
  #factura{display:block!important;font-size:12px;color:#000}
  @page{margin:16mm}
}
#factura .cab{display:flex;justify-content:space-between;gap:24px;margin-bottom:24px}
#factura h2{margin:0 0 6px;font-size:22px}
#factura .partes{display:flex;justify-content:space-between;gap:24px;margin-bottom:20px}
#factura .partes div{flex:1}
#factura .pie{margin-top:24px;font-size:11px;white-space:pre-wrap}