:root{
  --morado:#7a1a7a; --morado-2:#5e1360; --morado-cl:#f4e9f4;
  --gris:#efefef; --crema:#fffde6; --tinta:#1f1d22; --suave:#6b6670; --borde:#e2dde4;
  --ok:#1f8a4c; --err:#c0392b; --warn:#b7791f; --bg:#f6f4f7; --card:#fff;
  --radio:10px;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--tinta);background:var(--bg);font-size:15px;line-height:1.45}
a{color:var(--morado)}
h1{font-size:1.45rem;margin:0}
h2{font-size:1.05rem;margin:0 0 12px;color:var(--morado-2)}
code{background:#eee;padding:1px 5px;border-radius:4px}

/* Barra superior */
.topbar{display:flex;align-items:center;gap:16px;background:#fff;border-bottom:3px solid var(--morado);padding:8px 20px;position:sticky;top:0;z-index:20}
.brand img{height:40px;display:block}
.topbar nav{display:flex;gap:4px;flex-wrap:wrap;margin-left:auto;align-items:center}
.topbar nav a{padding:8px 12px;border-radius:8px;text-decoration:none;color:var(--tinta);font-weight:600;font-size:.92rem}
.topbar nav a:hover{background:var(--morado-cl)}
.topbar nav a.on{background:var(--morado);color:#fff}
.topbar nav a.salir{color:var(--suave);font-weight:500}
.menu-btn{display:none;margin-left:auto;background:none;border:1px solid var(--borde);border-radius:8px;font-size:1.3rem;padding:4px 10px}
@media (max-width:900px){
  .menu-btn{display:block}
  .topbar{flex-wrap:wrap}
  .topbar nav{display:none;width:100%;flex-direction:column;align-items:stretch}
  body.nav-open .topbar nav{display:flex}
}

.wrap{max-width:1250px;margin:0 auto;padding:22px 16px 90px}
.foot{text-align:center;color:var(--suave);font-size:.8rem;padding:20px}
.head-row{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.head-row.tight{margin-bottom:8px}
.actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.card{background:var(--card);border:1px solid var(--borde);border-radius:var(--radio);padding:18px;margin-bottom:16px;box-shadow:0 1px 2px rgba(0,0,0,.03)}
.warn-card{background:#fff8e6;border-color:#f1d48a}
.muted{color:var(--suave)} .small{font-size:.82rem} .red{color:var(--err)} .b{font-weight:700} .nowrap{white-space:nowrap} .mono{font-family:ui-monospace,Consolas,monospace}
.inline{display:inline}

/* Botones */
.btn{display:inline-flex;align-items:center;gap:6px;background:var(--morado);color:#fff;border:1px solid var(--morado);border-radius:8px;padding:9px 16px;font-weight:600;font-size:.92rem;cursor:pointer;text-decoration:none;font-family:inherit;white-space:nowrap}
.btn:hover{background:var(--morado-2)}
.btn.ghost{background:#fff;color:var(--morado)}
.btn.ghost:hover,.btn.ghost.on{background:var(--morado-cl)}
.btn.danger{background:#fff;color:var(--err);border-color:#e7b7b1}
.btn.danger:hover{background:#fdecea}
.btn.ok{background:var(--ok);border-color:var(--ok)}
.btn.sm{padding:5px 10px;font-size:.82rem}
.btn.full{width:100%;justify-content:center;padding:12px}
.btn[disabled]{opacity:.45;cursor:not-allowed}

/* Formularios */
input,select,textarea{font:inherit;padding:8px 10px;border:1px solid #cfc8d2;border-radius:8px;background:#fff;color:inherit;width:100%;min-width:0}
input:focus,select:focus,textarea:focus{outline:2px solid var(--morado);outline-offset:-1px;border-color:var(--morado)}
input[type=checkbox]{width:auto}
label{display:block;font-size:.85rem;font-weight:600;color:#4b4650}
label input,label select,label textarea{margin-top:4px;font-weight:400}
.grid-form{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.grid-form .span2{grid-column:span 2}
@media (max-width:800px){.grid-form{grid-template-columns:1fr 1fr}.grid-form .span2{grid-column:span 2}}
@media (max-width:500px){.grid-form{grid-template-columns:1fr}.grid-form .span2{grid-column:span 1}}
.row-inline{display:flex;gap:8px;align-items:center;margin-top:4px}
.row-inline select{margin:0}
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:end;padding:12px 14px}
.filters input,.filters select{width:auto;min-width:160px}
.filters label{display:flex;flex-direction:column}
.search input{width:260px}
label.chk{display:flex;gap:8px;align-items:center;font-weight:500}

/* Alertas */
.alert{padding:11px 14px;border-radius:8px;margin-bottom:14px;border:1px solid}
.alert.ok{background:#e9f7ef;border-color:#b6e2c6;color:#145c33}
.alert.err{background:#fdecea;border-color:#f3bcb5;color:#8e2418}
.alert.info{background:#eef3fd;border-color:#c5d5f5;color:#25427a}

/* Tablas */
.tbl-wrap{overflow-x:auto}
.tbl{width:100%;border-collapse:collapse;font-size:.9rem}
.tbl th{background:var(--morado);color:#fff;text-align:left;font-weight:600;padding:9px 10px;white-space:nowrap}
.tbl td{padding:8px 10px;border-bottom:1px solid var(--borde);vertical-align:top}
.tbl tfoot td{font-weight:700;background:var(--crema)}
.tbl tr.click{cursor:pointer}
.tbl tr.click:hover td{background:var(--morado-cl)}
.tbl tr.off td{opacity:.5}
.r{text-align:right}
.tag{background:var(--morado-cl);color:var(--morado-2);border-radius:5px;padding:1px 6px;font-size:.72rem;font-weight:600}

/* Estados */
.badge{display:inline-block;padding:3px 9px;border-radius:20px;font-size:.75rem;font-weight:700;white-space:nowrap}
.b-borrador{background:#eee;color:#555}
.b-emitida{background:#fff3d6;color:#8a5a00}
.b-pagada{background:#dff3e6;color:#16663a}
.b-anulada{background:#fbe0dd;color:#9b2a1d;text-decoration:line-through}
.badge.vf-aceptado{background:#dff3e6;color:#16663a}
.badge.vf-aceptado_errores{background:#fff3d6;color:#8a5a00}
.badge.vf-pendiente,.badge.vf-error_envio{background:#eef3fd;color:#25427a}
.badge.vf-rechazado{background:#fbe0dd;color:#9b2a1d}

/* KPIs */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:16px}
@media (max-width:900px){.kpis{grid-template-columns:1fr 1fr}}
@media (max-width:480px){.kpis{grid-template-columns:1fr}}
.kpi{background:#fff;border:1px solid var(--borde);border-radius:var(--radio);padding:14px 16px;display:flex;flex-direction:column;gap:2px}
.kpi span{font-size:.8rem;color:var(--suave);font-weight:600;text-transform:uppercase;letter-spacing:.02em}
.kpi b{font-size:1.45rem}
.kpi small{color:var(--suave)}
.kpi.accent{border-color:var(--morado);background:var(--morado-cl)}

/* Gráfico de meses */
.bars{display:grid;grid-template-columns:repeat(12,1fr);gap:8px;height:190px;align-items:end;padding-top:18px}
.bar{position:relative;height:100%;display:flex;flex-direction:column;justify-content:flex-end;align-items:center}
.bar .fill{width:100%;background:var(--morado);border-radius:5px 5px 0 0;min-height:2px}
.bar em{position:absolute;top:-2px;font-style:normal;font-size:.68rem;color:var(--suave)}
.bar span{font-size:.75rem;color:var(--suave);margin-top:4px}

/* Editor de líneas */
.lines td{padding:5px}
.lines input,.lines select,.lines textarea{padding:6px 7px}
.lines textarea{resize:vertical;min-height:34px;overflow:hidden}
.lines .imp{font-weight:700;padding-top:12px}
.totals-box{margin-left:auto;max-width:340px;margin-top:14px}
.totals-box>div,#desglose>div{display:flex;justify-content:space-between;padding:4px 0}
.totals-box .grand{border-top:2px solid var(--morado);margin-top:6px;padding-top:8px;font-size:1.2rem;color:var(--morado-2)}
.sticky-actions{position:sticky;bottom:0;background:rgba(246,244,247,.95);backdrop-filter:blur(4px);padding:12px 0;display:flex;gap:10px;justify-content:flex-end;border-top:1px solid var(--borde);z-index:5}

/* Importar */
.tabs{display:flex;gap:6px;margin-bottom:12px}
.tabs a{padding:8px 14px;border-radius:8px 8px 0 0;background:#fff;border:1px solid var(--borde);text-decoration:none;font-weight:600;color:var(--suave)}
.tabs a.on{background:var(--morado);color:#fff;border-color:var(--morado)}
.import-bar{display:flex;gap:14px;flex-wrap:wrap;align-items:end;margin-top:14px;padding-top:14px;border-top:1px solid var(--borde)}
.import-bar select,.import-bar input[name=nuevo_cliente]{min-width:240px}

/* Login */
.login-body{display:grid;place-items:center;min-height:100vh;background:linear-gradient(160deg,#f4e9f4,#f6f4f7)}
.login-card{background:#fff;padding:30px;border-radius:14px;width:min(380px,92vw);box-shadow:0 10px 30px rgba(94,19,96,.12);display:flex;flex-direction:column;gap:14px;border-top:4px solid var(--morado)}
.login-card img{width:100%;max-width:260px;margin:0 auto}
.login-card h1{text-align:center;color:var(--morado-2)}

.doc-text p{max-width:820px}

@media print{.topbar,.foot,.no-print,.sticky-actions{display:none!important}body{background:#fff}.card{border:none;box-shadow:none}}