:root{--fondo: #f3f4f6;--panel: #ffffff;--borde: #e5e7eb;--texto: #111827;--texto-suave: #6b7280;--primario: #ea580c;--primario-oscuro: #c2410c;--menu-fondo: #1f2937;--menu-texto: #d1d5db;--ok: #16a34a;--error: #dc2626}*{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--fondo);color:var(--texto);font-size:15px}.app{display:flex;min-height:100vh}.menu{width:240px;background:var(--menu-fondo);color:var(--menu-texto);display:flex;flex-direction:column;position:sticky;top:0;height:100vh;flex-shrink:0}.logo{display:flex;align-items:center;gap:10px;padding:20px 18px;border-bottom:1px solid #374151}.logo-icono{font-size:26px}.logo-texto{font-weight:800;letter-spacing:2px;color:#fff}.menu nav{display:flex;flex-direction:column;padding:12px 0;flex:1}.menu nav a,.menu-proximamente{padding:11px 18px;color:var(--menu-texto);text-decoration:none;border-left:3px solid 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(max-width: 640px){.landing-nav{display:none}.landing-captura{margin-bottom:0}}.login-volver{color:var(--texto-suave);font-size:14px;text-decoration:none}.login-volver:hover{color:var(--primario)}.registro-caja{max-width:430px}.registro-caja h1{letter-spacing:0;font-size:21px}.registro-caja input{text-align:left}.registro-codigo{text-align:center!important;font-size:26px!important;letter-spacing:10px;font-family:ui-monospace,monospace}.registro-nota{color:var(--texto-suave);font-size:13px}.registro-nota a{color:var(--primario)}.login-caja-ancha{max-width:480px}.bloqueo-precios{display:flex;gap:12px;justify-content:center;margin:8px 0}.bloqueo-precio{flex:1;border:1px solid var(--borde);border-radius:12px;padding:14px 10px;display:flex;flex-direction:column;gap:2px}.bloqueo-precio-mejor{border:2px solid var(--primario)}.bloqueo-precio-titulo{font-size:12px;text-transform:uppercase;color:var(--texto-suave)}.bloqueo-precio b{font-size:22px;color:var(--primario)}.bloqueo-botones-pago{display:flex;gap:6px;justify-content:center;margin-top:10px}.btn-pagar{padding:6px 10px;font-size:13px;font-weight:600;border:1px solid var(--primario);color:var(--primario);background:#fff}.btn-pagar:hover{background:var(--primario);color:#fff}.contador{display:flex;flex-direction:column;line-height:1.25;font-size:13.5px}.contador b{font-size:19px;margin-right:2px}.contador-verde b{color:#15803d}.contador-ambar b{color:#b45309}.contador-rojo b,.contador-rojo{color:#b91c1c}.contador-fecha{color:var(--texto-suave);font-size:12px}@media (max-width: 760px){.app{flex-direction:column}.menu{width:100%;height:auto;position:sticky;top:0;z-index:30;flex-direction:row;align-items:center;justify-content:space-between;padding-top:env(safe-area-inset-top)}.logo{padding:10px 14px;border-bottom:none}.logo-icono{font-size:20px}.logo-texto{font-size:15px}.menu-pie{border-top:none;padding:8px 12px;gap:10px}.menu nav{position:fixed;bottom:0;left:0;right:0;z-index:40;flex-direction:row;padding:0 0 env(safe-area-inset-bottom);background:var(--menu-fondo);border-top:1px solid #374151;box-shadow:0 -2px 10px #00000040}.menu nav a{flex:1;flex-direction:column;gap:2px;padding:7px 2px 8px;font-size:10.5px;text-align:center;border-left:none;border-top:3px solid transparent}.menu nav a:hover{background:none}.menu nav a.active{background:none;border-top-color:var(--primario);border-left:none}.icono-menu{font-size:21px;line-height:1}.menu-proximamente{display:none}.contenido{padding:16px 12px calc(86px + env(safe-area-inset-bottom))}input,select,textarea{font-size:16px}.formulario,.formulario-3,.ficha-factura{grid-template-columns:1fr}.campo,.modal-botones,.formulario .aviso{grid-column:span 1!important}.panel-totales,.panel-trimestres,.barra-acciones{width:100%}.barra-acciones button,.barra-acciones select{flex:1;padding:10px 8px}.tarjetas{display:grid;grid-template-columns:1fr 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