:root{
    --bg:#f4f7fb;
    --panel:#ffffff;
    --panel-soft:#f8fafc;
    --text:#0f172a;
    --muted:#64748b;
    --line:#e2e8f0;
    --primary:#2563eb;
    --primary-dark:#1d4ed8;
    --success:#16a34a;
    --danger:#dc2626;
    --warning:#d97706;
    --shadow:0 18px 50px rgba(15,23,42,.08);
    --radius:18px;
}
*{box-sizing:border-box}
html,body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text);font-size:14px}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font:inherit}
.app-shell{min-height:100vh;display:flex}
.sidebar{width:278px;background:#07111f;color:#dbeafe;padding:22px 18px;display:flex;flex-direction:column;position:fixed;left:0;top:0;bottom:0;box-shadow:12px 0 35px rgba(2,6,23,.2);z-index:5}
.brand{display:flex;align-items:center;gap:12px;margin-bottom:28px;padding:10px}
.brand-icon{width:42px;height:42px;border-radius:14px;background:linear-gradient(135deg,#2563eb,#14b8a6);display:flex;align-items:center;justify-content:center;color:white;font-weight:800;box-shadow:0 12px 30px rgba(37,99,235,.25)}
.brand strong{display:block;font-size:18px;letter-spacing:.2px}.brand span{display:block;color:#93c5fd;font-size:12px;margin-top:2px}
.menu{display:flex;flex-direction:column;gap:7px}.menu a{display:flex;align-items:center;gap:11px;padding:12px 13px;border-radius:13px;color:#cbd5e1;transition:.2s}.menu a i{width:18px;text-align:center}.menu a:hover,.menu a.active{background:rgba(37,99,235,.16);color:#fff}.menu a.active{box-shadow:inset 3px 0 0 #60a5fa}
.sidebar-footer{margin-top:auto;padding:14px 12px;border-top:1px solid rgba(226,232,240,.12);color:#94a3b8;line-height:1.45}
.main-content{flex:1;margin-left:278px;padding:26px;min-width:0}.auth-main{margin-left:0;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(circle at top left,#dbeafe,#f8fafc 42%,#eef2ff)}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:22px;background:rgba(255,255,255,.78);backdrop-filter:blur(12px);border:1px solid rgba(226,232,240,.8);border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow)}
.topbar h1{margin:4px 0 0;font-size:26px}.eyebrow{color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.08em;display:flex;align-items:center;gap:6px}.topbar-user{display:flex;align-items:center;gap:12px;color:var(--muted)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:20px}.card-title{margin:0 0 6px;font-size:19px}.text-muted{color:var(--muted)}.text-success{color:var(--success);font-weight:700}.text-danger{color:var(--danger);font-weight:700}.text-warning{color:var(--warning);font-weight:700}
.grid{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.stat-card{position:relative;overflow:hidden}.stat-card:after{content:"";position:absolute;right:-25px;top:-35px;width:110px;height:110px;border-radius:50%;background:rgba(37,99,235,.08)}.stat-card .label{color:var(--muted);font-weight:700;text-transform:uppercase;font-size:11px;letter-spacing:.06em}.stat-card .value{font-size:30px;font-weight:850;margin-top:9px}.stat-card .hint{color:var(--muted);margin-top:6px}
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.toolbar p{margin:5px 0 0}.toolbar-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.btn{border:0;background:var(--primary);color:white;border-radius:12px;padding:10px 14px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:800;cursor:pointer;line-height:1;transition:.18s;white-space:nowrap}.btn:hover{background:var(--primary-dark);transform:translateY(-1px)}.btn-light{background:#eef2f7;color:#0f172a}.btn-light:hover{background:#e2e8f0}.btn-success{background:var(--success)}.btn-success:hover{background:#15803d}.btn-danger{background:var(--danger)}.btn-danger:hover{background:#b91c1c}.btn-warning{background:var(--warning)}.btn-sm{padding:8px 10px;border-radius:10px;font-size:12px}.btn-block{width:100%}
.form{display:flex;flex-direction:column;gap:14px}.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.form-row-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}.form-group label{display:block;font-weight:750;margin-bottom:7px;color:#334155}.form-control{width:100%;border:1px solid #cbd5e1;background:#fff;border-radius:12px;padding:11px 12px;outline:none;transition:.15s}.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(37,99,235,.12)}textarea.form-control{min-height:92px;resize:vertical}.check-line{display:flex!important;align-items:center;gap:8px;margin-top:12px;color:#334155!important}.check-line input{width:16px;height:16px}.form-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:6px}.filters{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px;align-items:end}
.table-wrap{width:100%;overflow:auto;border-radius:14px;border:1px solid var(--line)}table{width:100%;border-collapse:collapse;background:white}th,td{padding:13px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}th{background:#f8fafc;color:#475569;font-size:12px;text-transform:uppercase;letter-spacing:.05em;white-space:nowrap}tr:last-child td{border-bottom:0}.actions{display:flex;gap:7px;flex-wrap:wrap}.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 9px;border-radius:999px;background:#eef2ff;color:#3730a3;font-weight:800;font-size:12px;white-space:nowrap}.badge.success{background:#dcfce7;color:#166534}.badge.danger{background:#fee2e2;color:#991b1b}.badge.warning{background:#fef3c7;color:#92400e}.badge.muted{background:#e2e8f0;color:#475569}
.summary-line{display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid var(--line);padding:12px 0}.summary-line:last-child{border-bottom:0}.summary-line strong{font-size:16px}.auth-card{width:min(420px,100%);padding:28px}.auth-logo{text-align:center;margin-bottom:22px}.auth-logo .brand-icon{margin:0 auto 12px}.auth-logo h1{margin:0}.auth-logo p{color:var(--muted);margin:8px 0 0}
.alert{padding:12px 14px;border-radius:12px;margin-bottom:14px;font-weight:700}.alert.error{background:#fee2e2;color:#991b1b}.alert.success{background:#dcfce7;color:#166534}
.modal{display:none;position:fixed;inset:0;z-index:1000;align-items:center;justify-content:center;padding:22px}.modal.is-open{display:flex}.modal-backdrop{position:absolute;inset:0;background:rgba(15,23,42,.58);backdrop-filter:blur(5px)}.modal-dialog{position:relative;width:min(820px,100%);max-height:92vh;overflow:auto;background:white;border-radius:22px;border:1px solid rgba(226,232,240,.9);box-shadow:0 30px 90px rgba(2,6,23,.28);padding:20px}.modal-sm{width:min(480px,100%)}.modal-lg{width:min(980px,100%)}.modal-head{display:flex;align-items:flex-start;gap:13px;margin-bottom:16px}.modal-head h3{margin:0;font-size:20px}.modal-head p{margin:6px 0 0;color:var(--muted);line-height:1.45}.modal-icon{width:42px;height:42px;border-radius:14px;display:flex;align-items:center;justify-content:center;flex:none;background:#dbeafe;color:var(--primary);font-size:18px}.modal-icon.success{background:#dcfce7;color:#166534}.modal-icon.error,.modal-icon.danger{background:#fee2e2;color:#991b1b}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.modal-close{margin-left:auto;border:0;background:#f1f5f9;border-radius:10px;width:36px;height:36px;cursor:pointer;color:#475569}.modal-close:hover{background:#e2e8f0}
.kpi-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.mini-kpi{background:var(--panel-soft);border:1px solid var(--line);border-radius:14px;padding:14px}.mini-kpi span{display:block;color:var(--muted);font-size:12px;font-weight:750}.mini-kpi strong{display:block;margin-top:6px;font-size:18px}.empty-state{text-align:center;padding:24px;color:var(--muted)}
@media (max-width:1100px){.grid-4{grid-template-columns:repeat(2,1fr)}.filters{grid-template-columns:repeat(2,1fr)}}
@media (max-width:860px){.sidebar{position:static;width:100%;height:auto}.app-shell{display:block}.main-content{margin-left:0;padding:16px}.topbar{align-items:flex-start;flex-direction:column}.grid-2,.grid-3,.grid-4,.form-row,.form-row-3,.filters,.kpi-strip{grid-template-columns:1fr}.toolbar{align-items:flex-start;flex-direction:column}.toolbar-actions{width:100%}.btn{width:auto}.table-wrap{border-radius:12px}}
@media print{.sidebar,.topbar,.no-print,.btn,.actions,.modal{display:none!important}.main-content{margin:0;padding:0}.card{box-shadow:none;border:1px solid #ddd;margin-bottom:14px}.grid,.grid-2,.grid-3,.grid-4{display:block}.stat-card{margin-bottom:12px}body{background:white}}
.grid > .stat-card:not(.card){padding:16px;border:1px solid var(--line);border-radius:16px;background:var(--panel-soft)}

.filters-sales{grid-template-columns:1.1fr 1.4fr auto auto auto}
.table-wrap tbody tr.sale-row-today td{background:#fff1f2}
.table-wrap tbody tr.sale-row-today td:first-child{box-shadow:inset 4px 0 0 var(--danger)}
.table-wrap tbody tr.sale-row-soon td{background:#fffbeb}
.table-wrap tbody tr.sale-row-soon td:first-child{box-shadow:inset 4px 0 0 var(--warning)}
.table-wrap tbody tr.sale-row-expired td{background:#fef2f2;color:#7f1d1d}
.table-wrap tbody tr.sale-row-expired td:first-child{box-shadow:inset 4px 0 0 var(--danger)}
.table-wrap tbody tr.sale-row-cancelled td{background:#f8fafc;color:#64748b}
.table-wrap tbody tr.sale-row-cancelled td strong{color:#475569}

/* Reporte simple */
.filters-report-simple{grid-template-columns:180px 180px auto}
.report-card{display:flex;flex-direction:column;justify-content:space-between;gap:18px;min-height:190px}
.report-card-head{display:flex;gap:14px;align-items:flex-start}
.report-icon{width:48px;height:48px;border-radius:16px;display:flex;align-items:center;justify-content:center;flex:none;background:#dbeafe;color:var(--primary);font-size:20px}
.report-icon.success{background:#dcfce7;color:#166534}
.report-icon.danger{background:#fee2e2;color:#991b1b}
.report-card .label{color:var(--muted);font-weight:800;text-transform:uppercase;font-size:11px;letter-spacing:.06em}
.report-card .value{font-size:32px;font-weight:900;margin-top:8px;line-height:1.1}
.report-card .hint{color:var(--muted);margin-top:6px;line-height:1.35}
.report-card .btn{align-self:flex-start}
@media (max-width:860px){.filters-report-simple{grid-template-columns:1fr}.report-card{min-height:auto}}

/* Ventas: resumen mensual separado del listado general */
.filters-money-month{grid-template-columns:180px 160px auto auto}
.stat-card .btn{margin-top:12px;position:relative;z-index:1}
@media (max-width:860px){.filters-money-month{grid-template-columns:1fr}}