:root{
  --ink:#111; --bg:#fff; --muted:#6b7280; --accent:#0ea5e9; --line:#e7eaee;
  --radius:18px; --gap:16px; --shadow:0 6px 24px rgba(0,0,0,.08);
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 var(--font)}
.wrap{max-width:1100px;margin:auto;padding:0 var(--gap)}
h1{font-size:clamp(1.5rem,3vw,2.4rem);margin:24px 0}
h2{margin:.25rem 0 8px}
.small{font-size:.9rem}.muted{color:var(--muted)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin:24px 0;box-shadow:var(--shadow)}
.nav{display:flex;gap:12px;margin-bottom:12px}
.nav a{padding:8px 12px;border-radius:10px;border:1px solid var(--line);text-decoration:none;color:inherit}
.nav a[aria-current="page"]{background:#f7fafc}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.lbl{display:block;margin-bottom:6px}
input,textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:10px;font:inherit}
.btn{display:inline-block;border:0;border-radius:999px;padding:12px 18px;background:var(--accent);color:#fff;font-weight:700;cursor:pointer}
.btn.ghost{background:#e7eaee;color:#111}
.mt{margin-top:16px}
.flex-between{display:flex;justify-content:space-between;align-items:center;gap:12px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.chip{border:1px solid var(--line);padding:6px 10px;border-radius:999px;cursor:pointer;background:#fff}
.chip:hover{background:#f4f7fb}
.lines{width:100%;border-collapse:collapse;margin-top:10px}
.lines th,.lines td{border-bottom:1px solid var(--line);padding:8px}
.lines th.qty,.lines td.qty{width:80px}
.lines th.num,.lines td.num{text-align:right;width:120px}
.lines td .del{background:#ffe9e9;border-radius:10px;padding:4px 8px;border:1px solid #ffd1d1;cursor:pointer}
.totals{display:grid;gap:4px;justify-items:end}
.big{font-size:1.3rem;font-weight:800}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:24px 0}
.kpi{border:1px solid var(--line);border-radius:16px;padding:16px;background:#fff;box-shadow:var(--shadow)}
.kpi-label{color:var(--muted);font-weight:600}.kpi-value{font-size:1.6rem;font-weight:800}
.list{list-style:none;padding:0;margin:0}
.list li{border-bottom:1px dashed var(--line);padding:10px 0}
.switch{position:relative;display:inline-block;width:48px;height:26px;vertical-align:middle;margin-right:6px}
.switch.small{width:40px;height:22px}
.switch input{opacity:0;width:0;height:0}
.slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background:#ddd;border-radius:999px;transition:.2s}
.slider:before{position:absolute;content:"";height:18px;width:18px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s;box-shadow:0 1px 3px rgba(0,0,0,.2)}
input:checked + .slider{background:var(--accent)}
input:checked + .slider:before{transform:translateX(22px)}
@media print{
  header, .nav, .actions, .tabs, .chips { display:none!important; }
  .card{box-shadow:none;border:0}
}