:root{
  --brand:#9a4a2b; --brand-d:#7c3a21; --bg:#f6f2ee; --card:#fff; --line:#e6ddd5;
  --txt:#2b2420; --muted:#7d7168; --ok:#1f7a4a; --bad:#b3261e;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.4 system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--txt)}
a{color:var(--brand)}
h1,h2,h3,h4{margin:.2em 0 .5em}
h2{font-size:1.35rem} h3{font-size:1.1rem}
small,.muted{color:var(--muted)}
.ok{color:var(--ok)} .neg{color:var(--bad)}
.r{text-align:right} .center{text-align:center}

/* barra superior */
.top{background:var(--brand);color:#fff;display:flex;flex-wrap:wrap;align-items:center;gap:.4rem .9rem;padding:.55rem .9rem;position:sticky;top:0;z-index:20}
.top a{color:#fff;text-decoration:none}
.brand{font-weight:700;font-size:1.1rem}
.top nav{display:flex;gap:.25rem;overflow-x:auto;flex:1;min-width:0}
.top nav a{padding:.35rem .7rem;border-radius:999px;white-space:nowrap;font-size:.95rem}
.top nav a.on{background:rgba(255,255,255,.22);font-weight:600}
.who{font-size:.85rem;opacity:.9;white-space:nowrap}
main{max-width:1180px;margin:0 auto;padding:.9rem}

/* cajas y formularios */
.box{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:1rem;margin:0 0 .9rem}
.box.narrow{max-width:640px;margin-left:auto;margin-right:auto}
.box.login{max-width:380px;margin:12vh auto 0}
label{display:block;font-size:.9rem;font-weight:600;margin:.7rem 0 .2rem}
label input,label select,label textarea{display:block;width:100%;margin-top:.25rem;font-weight:400}
input,select,textarea{font:inherit;padding:.6rem .7rem;border:1px solid #cfc3b8;border-radius:9px;background:#fff;color:var(--txt);max-width:100%}
input:focus,select:focus,textarea:focus{outline:2px solid #e0b49f;border-color:var(--brand)}
fieldset{border:1px solid var(--line);border-radius:10px;margin:.9rem 0 .3rem;padding:.4rem .8rem .8rem}
legend{font-weight:700;padding:0 .4rem;font-size:.9rem}
.radio{font-weight:400;display:flex;gap:.5rem;align-items:flex-start;margin:.4rem 0}
.radio input{width:auto;margin:.25rem 0 0}
.two{display:grid;grid-template-columns:1fr 1fr;gap:0 .8rem}
.hint{font-size:.85rem;color:var(--muted);margin:.3rem 0}
.req{font-weight:400;font-size:.75rem;color:var(--bad);margin-left:.3rem}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:.9rem}

.btn{display:inline-block;font:inherit;font-weight:600;padding:.6rem 1rem;border-radius:9px;border:1px solid #cfc3b8;background:#fff;color:var(--txt);text-decoration:none;cursor:pointer}
.btn:hover{background:#f3ebe5}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-d)}
.btn.danger{color:var(--bad);border-color:#e3b9b5}
.btn.small{padding:.35rem .7rem;font-size:.85rem}
.btn.wide{width:100%;margin-top:.6rem}
.btn:disabled{opacity:.6}
.link{background:none;border:0;color:var(--brand);font:inherit;cursor:pointer;padding:.4rem 0;text-decoration:underline}
.actions{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.9rem;align-items:center}
.page-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:.5rem}
.page-head .actions{margin-top:0}
form.inline{display:inline-flex;gap:.4rem;align-items:center;margin:.15rem 0}
form.inline input{padding:.35rem .5rem;width:9.5rem}

.flash{padding:.7rem .9rem;border-radius:10px;margin:0 0 .8rem;font-size:.95rem}
.flash.ok{background:#e4f4ea;color:#14573a;border:1px solid #bfe3cc}
.flash.err{background:#fdeaea;color:#8c1d18;border:1px solid #f2c4c0}
.tag{font-size:.7rem;padding:.15rem .5rem;border:1px solid currentColor;border-radius:99px;vertical-align:middle}

/* tablas */
.tbl{width:100%;border-collapse:collapse}
.tbl td,.tbl th{padding:.55rem .4rem;border-bottom:1px solid var(--line);vertical-align:middle;text-align:left}
.tbl th{font-size:.8rem;color:var(--muted);font-weight:600}
.tbl th.r,.tbl td.r{text-align:right}
.tbl tr.sum td{border-top:2px solid var(--line);border-bottom:0;font-size:1.05rem}
.tbl tr.void{opacity:.55}
.tbl tr[onclick]{cursor:pointer}
.tbl td.chk{width:2rem}
.tbl td.chk input{width:1.2rem;height:1.2rem}
.barcell{width:28%}
.bar{height:10px;background:#d9a68e;border-radius:6px;min-width:2px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:.7rem;margin:.8rem 0}
.stats div{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:.7rem .9rem}
.stats span{display:block;font-size:.8rem;color:var(--muted)}
.stats b{font-size:1.3rem}

/* lista de productos / proveedores */
.plist{display:flex;flex-direction:column;gap:.5rem}
.prow{display:flex;gap:.8rem;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:.6rem}
.thumb{width:64px;height:64px;border-radius:9px;background:#efe6df;display:flex;align-items:center;justify-content:center;overflow:hidden;flex:none;font-size:1.6rem}
.thumb img{width:100%;height:100%;object-fit:cover}
.thumb.sm{width:44px;height:44px;font-size:1.1rem}
.pmain{flex:1;min-width:0}
.pmain .nm{font-weight:600}
.pprice{font-weight:700;font-size:1.1rem;white-space:nowrap;text-align:right}
.pprice small{display:block;font-weight:400;font-size:.75rem}
.pact{display:flex;gap:.35rem;flex-wrap:wrap;justify-content:flex-end}
.pact form{margin:0}
.curimg{display:flex;align-items:center;gap:.7rem;margin:.4rem 0}
.curimg img{width:90px;height:90px;object-fit:cover;border-radius:10px}
.preview{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:.5rem;background:#f8efe9;border:1px dashed #d9b8a6;border-radius:10px;padding:.7rem;margin:.8rem 0}
.preview span{display:block;font-size:.75rem;color:var(--muted)}
.preview b{font-size:1.05rem}

/* interruptores */
.switch{display:flex;align-items:center;gap:.8rem;font-weight:400;padding:.7rem 0;border-bottom:1px solid var(--line);cursor:pointer;margin:0}
.switch input{position:absolute;opacity:0;width:0;height:0}
.switch i{flex:none;width:48px;height:28px;border-radius:99px;background:#cfc3b8;position:relative;transition:.15s}
.switch i::after{content:"";position:absolute;top:3px;left:3px;width:22px;height:22px;border-radius:50%;background:#fff;transition:.15s;box-shadow:0 1px 3px rgba(0,0,0,.3)}
.switch input:checked + i{background:var(--ok)}
.switch input:checked + i::after{left:23px}

/* POS */
.pos{display:grid;grid-template-columns:1fr 360px;gap:.9rem;align-items:start}
.toolbar{display:flex;gap:.5rem;margin-bottom:.7rem;flex-wrap:wrap}
.toolbar input{flex:1;min-width:180px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:.6rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:0;text-align:left;cursor:pointer;overflow:hidden;font:inherit;color:inherit;transition:transform .12s,border-color .12s}
.card:hover{border-color:var(--brand)}
.card.added{transform:scale(.96);border-color:var(--ok)}
.card .img{aspect-ratio:1/1;background:#efe6df;display:flex;align-items:center;justify-content:center;font-size:2.4rem}
.card .img img{width:100%;height:100%;object-fit:cover}
.card .info{padding:.5rem .6rem .6rem}
.card .nm{font-weight:600;font-size:.9rem;line-height:1.2;max-height:2.4em;overflow:hidden}
.card .pr{font-weight:700;color:var(--brand);margin-top:.2rem}
.card .pr small{font-weight:400}
.card .sp{font-size:.72rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cart{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:.9rem;position:sticky;top:64px}
.cart-head{display:flex;justify-content:space-between;align-items:center}
.close-cart{display:none}
.lines{max-height:38vh;overflow:auto;margin:.3rem 0}
.line{display:grid;grid-template-columns:44px 1fr auto;gap:.2rem .6rem;align-items:center;padding:.5rem 0;border-bottom:1px solid var(--line);position:relative}
.line .lt{width:44px;height:44px;border-radius:8px;overflow:hidden;background:#efe6df;display:flex;align-items:center;justify-content:center}
.line .lt img{width:100%;height:100%;object-fit:cover}
.line .nm{font-size:.88rem;font-weight:600;padding-right:1.4rem}
.line .lq{grid-column:2;display:flex;align-items:center;gap:.25rem}
.line .lq button{width:32px;height:32px;border:1px solid #cfc3b8;background:#fff;border-radius:8px;font-size:1.1rem;cursor:pointer}
.line .lq input{width:58px;text-align:center;padding:.3rem}
.line .ls{grid-column:3;font-weight:700;text-align:right}
.line .rm{position:absolute;right:0;top:.4rem;border:0;background:none;color:var(--muted);cursor:pointer;font-size:1rem}
.total-row{display:flex;justify-content:space-between;font-size:1.3rem;padding:.6rem 0}
.cust{display:grid;gap:.4rem}
.cust input,.cust select{width:100%}
.cartbar{display:none}

@media (max-width: 900px){
  .pos{grid-template-columns:1fr}
  .cart{display:none;position:fixed;inset:0;z-index:40;border-radius:0;overflow:auto;top:0}
  .cart.open{display:block}
  .close-cart{display:inline}
  .lines{max-height:none}
  .cartbar{position:fixed;left:.7rem;right:.7rem;bottom:.7rem;z-index:30;background:var(--brand);color:#fff;border:0;border-radius:14px;padding:.85rem 1rem;font:inherit;font-weight:600;display:none;justify-content:space-between;box-shadow:0 4px 14px rgba(0,0,0,.25);cursor:pointer}
  .cartbar.has{display:flex}
  main{padding-bottom:5rem}
  .two,.two-col{grid-template-columns:1fr}
  .prow{flex-wrap:wrap}
  .pact{width:100%;justify-content:flex-start}
  .who{width:100%}
  .tbl{font-size:.9rem}
}