:root{
  --brand:#1d63d8; --brand-deep:#1748a8; --navy:#1e3a5f;
  --ink:#0f1b2d; --soft:#33425a; --muted:#6b7a90; --line:#e3e8ef;
  --bg:#f5f8fb; --card:#fff; --ok:#16a34a; --warn:#d97706; --danger:#dc2626;
  --radius:12px; --shadow:0 1px 2px rgba(15,27,45,.06),0 4px 16px rgba(15,27,45,.06);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.5}
[x-cloak]{display:none!important}
a{color:var(--brand-deep);text-decoration:none}
.muted{color:var(--muted)} .mono{font-family:var(--mono)}

header.top{background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.top .wrap{max-width:1200px;margin:0 auto;padding:0 20px;height:62px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--navy)}
.brand .ico{width:30px;height:30px;border-radius:8px;background:var(--navy);color:#fff;display:grid;place-items:center;font-size:15px}
.top .right{display:flex;align-items:center;gap:14px;font-size:.85rem;color:var(--muted)}

main{max-width:1200px;margin:0 auto;padding:24px 20px 80px}
h1{font-size:1.5rem;letter-spacing:-.02em;margin:0 0 4px}
.sub{color:var(--muted);font-size:.9rem;margin:0 0 20px}

.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.input,select{font:inherit;font-size:.88rem;padding:8px 11px;border:1px solid var(--line);border-radius:9px;background:#fff;color:var(--ink)}
.input:focus,select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(29,99,216,.12)}
.search{position:relative} .search .input{padding-left:32px;width:240px}
.search svg{position:absolute;left:10px;top:9px;width:16px;height:16px;color:var(--muted)}
.grow{flex:1}

.btn{font:inherit;font-size:.86rem;font-weight:600;padding:8px 15px;border-radius:9px;border:1px solid transparent;cursor:pointer;display:inline-flex;align-items:center;gap:6px;transition:background .15s}
.btn.primary{background:var(--brand);color:#fff} .btn.primary:hover{background:var(--brand-deep)}
.btn.ghost{background:#fff;border-color:var(--line);color:var(--soft)} .btn.ghost:hover{background:#f1f5fb}
.btn.sm{padding:5px 10px;font-size:.8rem}
.btn.danger{background:#fff;border-color:#fecaca;color:var(--danger)} .btn.danger:hover{background:#fef2f2}

.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.tablewrap{overflow-x:auto;background:var(--card);border:1px solid var(--line);border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;font-size:.88rem;min-width:720px}
th{text-align:left;font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:700;padding:11px 14px;border-bottom:1px solid var(--line)}
td{padding:10px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
tr:last-child td{border-bottom:none}
tbody tr{cursor:pointer} tbody tr:hover{background:#f7faff}
.num{font-variant-numeric:tabular-nums;text-align:right}

.pill{display:inline-block;font-size:.7rem;font-weight:700;padding:2px 8px;border-radius:999px}
.pill.gray{background:#eef2f7;color:var(--muted)} .pill.blue{background:#e0e9fb;color:var(--brand-deep)}
.pill.amber{background:#fef3c7;color:#92400e} .pill.green{background:#dcfce7;color:#166534}
.pill.teal{background:#ccfbf1;color:#0f766e} .pill.red{background:#fee2e2;color:#991b1b}
.stockbad{color:var(--danger);font-weight:700} .stocklow{color:var(--warn);font-weight:700}

/* Drawer / detalle */
.overlay{position:fixed;inset:0;background:rgba(15,27,45,.4);z-index:40;display:flex;justify-content:flex-end}
.drawer{width:min(560px,100%);background:var(--bg);height:100%;overflow-y:auto;box-shadow:-8px 0 30px rgba(15,27,45,.15)}
.drawer .dh{background:var(--card);border-bottom:1px solid var(--line);padding:18px 22px;position:sticky;top:0}
.drawer .db{padding:22px}
.kv{display:grid;grid-template-columns:auto auto;gap:10px;font-size:.85rem}
.stat{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:12px 14px;text-align:center}
.stat .n{font-size:1.5rem;font-weight:800;font-variant-numeric:tabular-nums}
.stat .l{font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
.stats3{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:14px 0}
.section-t{font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:700;margin:20px 0 8px}
.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.ledger{font-size:.82rem} .ledger li{padding:8px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:10px}
.delta-pos{color:var(--ok);font-weight:700} .delta-neg{color:var(--danger);font-weight:700}

/* Modal */
.modal{position:fixed;inset:0;background:rgba(15,27,45,.4);z-index:50;display:grid;place-items:center;padding:16px}
.modal .box{background:#fff;border-radius:14px;width:min(460px,100%);padding:22px;box-shadow:var(--shadow)}
label.f{display:block;font-size:.8rem;font-weight:600;color:var(--soft);margin:10px 0 4px}
.f-input{width:100%}
.toast{position:fixed;bottom:22px;right:22px;background:var(--navy);color:#fff;padding:10px 16px;border-radius:10px;font-size:.85rem;z-index:60;box-shadow:var(--shadow)}
.empty{text-align:center;color:var(--muted);padding:48px 0;font-size:.9rem}

/* Almacén: estantería visual */
.almacen{display:flex;gap:22px;align-items:flex-start;flex-wrap:wrap}
.sidecol{width:260px;flex-shrink:0}
.estbtn{display:inline-block;margin:4px 4px 0 0;cursor:pointer}
.grilla{display:grid;gap:8px}
.hueco{background:var(--card);border:1px solid var(--line);border-radius:9px;min-height:78px;padding:7px 8px;cursor:pointer;transition:border-color .12s,box-shadow .12s;display:flex;flex-direction:column;gap:3px}
.hueco:hover{border-color:var(--brand);box-shadow:0 0 0 3px rgba(29,99,216,.1)}
.hueco.lleno{background:#f4f8ff}
.hcod{font-size:.62rem;font-weight:700;color:var(--muted);letter-spacing:.04em}
.hit{font-size:.72rem;line-height:1.25;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hit b{font-variant-numeric:tabular-nums}
.estgrid-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}