:root {
  --primary: #E8720C;
  --primary-dark: #c95f08;
  --dark: #1f2d3d;
  --dark-2: #2c4258;
  --bg: #f5f6f8;
  --card-bg: #ffffff;
  --text: #24303d;
  --text-light: #6b7785;
  --border: #e5e8ec;
  --good: #1f9d55;
  --bad: #d64545;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

[hidden] { display: none !important; }

/* ============ LOGIN ============ */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
}
.login-card {
  background: var(--card-bg);
  padding: 40px 36px;
  border-radius: 16px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.35);
  width: 340px;
  text-align: center;
}
.login-logo { width: 72px; height: 72px; object-fit: contain; margin-bottom: 12px; }
.login-card h1 { margin: 0 0 4px; font-size: 22px; color: var(--dark); }
.subtitle { color: var(--text-light); margin: 0 0 24px; font-size: 13px; }
#login-form input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-bottom: 14px;
  font-size: 14px;
}
#login-form button {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 8px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}
#login-form button:hover { background: var(--primary-dark); transform: translateY(-1px); }
.login-error { color: var(--bad); font-size: 13px; min-height: 18px; margin-top: 10px; }

/* ============ NAVBAR ============ */
.navbar {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
  color: #fff;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.navbar-left { display: flex; align-items: center; gap: 10px; }
.navbar-logo { width: 32px; height: 32px; object-fit: contain; }
.navbar-title { font-weight: 700; font-size: 18px; letter-spacing: 0.5px; }
.navbar-right { display: flex; align-items: center; gap: 16px; }
.tasa-badge {
  background: rgba(255,255,255,0.12);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 13px;
}
.btn-ghost {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.4);
  color: #fff;
  padding: 6px 14px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s ease;
}
.btn-ghost:hover { background: rgba(255,255,255,0.15); }

/* ============ TABS ============ */
.tabs {
  display: flex;
  gap: 4px;
  padding: 0 24px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
}
.tab-btn {
  border: none;
  background: transparent;
  padding: 14px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-light);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.tab-btn:hover { color: var(--primary); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }

/* ============ CONTENT ============ */
.content { padding: 24px; max-width: 1200px; margin: 0 auto; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 20px;
  margin-bottom: 20px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(31,45,61,0.08); }
.card.kpi {
  border-left: 4px solid var(--primary);
  margin-bottom: 0;
}
.kpi-label { font-size: 13px; color: var(--text-light); margin-bottom: 6px; }
.kpi-value { font-size: 26px; font-weight: 700; color: var(--dark); }

.row-2col {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
}
@media (max-width: 800px) {
  .row-2col { grid-template-columns: 1fr; }
}

.card h3 { margin: 0 0 14px; font-size: 15px; color: var(--dark); }

.tabla-scroll { overflow-x: auto; }
.tabla { width: 100%; border-collapse: collapse; font-size: 13px; }
.tabla th {
  text-align: left;
  padding: 10px 8px;
  color: var(--text-light);
  border-bottom: 2px solid var(--border);
  font-weight: 600;
}
.tabla td {
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
}
.tabla tbody tr:hover { background: rgba(232,114,12,0.05); }

.mini-list .item-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.mini-list .empty { color: var(--text-light); font-size: 13px; }
.stock-low { color: var(--bad); font-weight: 700; }

.buscador {
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 14px;
}

.badge-status {
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}
.badge-paid { background: rgba(31,157,85,0.12); color: var(--good); }
.badge-unpaid { background: rgba(214,69,69,0.12); color: var(--bad); }
.badge-default { background: rgba(107,119,133,0.12); color: var(--text-light); }

/* ============ BOTONES / HEADER DE TARJETAS ============ */
.card-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.card-header-row h3 { margin: 0; }

.btn-primary {
  background: var(--primary);
  color: #fff;
  border: none;
  padding: 9px 16px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }

.btn-cancel {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-light);
  padding: 9px 16px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}
.btn-cancel:hover { background: var(--bg); }

/* ============ MODALES ============ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 33, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 16px;
}
.modal-box {
  background: var(--card-bg);
  border-radius: 14px;
  padding: 28px 28px 22px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.35);
}
.modal-box h3 { margin: 0 0 18px; color: var(--dark); }
.modal-box form label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-light);
  margin: 12px 0 6px;
}
.modal-box form input,
.modal-box form select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 14px;
  font-family: inherit;
}
.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
}
.form-error {
  color: var(--bad);
  font-size: 13px;
  min-height: 16px;
  margin: 10px 0 0;
}
.stock-ok { color: var(--good); font-weight: 600; }
.stock-warn { color: var(--bad); font-weight: 700; }

/* ============ COMPRAS: lineas dinamicas ============ */
.modal-box-lg { max-width: 560px; }
#compra-lineas { margin-top: 6px; }
.linea-compra {
  display: grid;
  grid-template-columns: 2fr 90px 100px 32px;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}
.linea-compra select,
.linea-compra input {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 13px;
  font-family: inherit;
}
.btn-quitar-linea {
  background: rgba(214,69,69,0.1);
  color: var(--bad);
  border: none;
  border-radius: 8px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  font-weight: 700;
}
.btn-agregar-linea {
  margin-top: 4px;
  width: auto;
  display: inline-block;
  padding: 7px 14px;
  font-size: 12px;
}
.compra-total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 15px;
}
.compra-total-row strong { color: var(--primary); font-size: 18px; }

/* ============ FOTO DE PRODUCTO / EXTRAS ============ */
.foto-item {
  width: 34px;
  height: 34px;
  border-radius: 6px;
  object-fit: cover;
  background: var(--bg);
  border: 1px solid var(--border);
  display: block;
}
.foto-item-vacia {
  width: 34px;
  height: 34px;
  border-radius: 6px;
  background: var(--bg);
  border: 1px solid var(--border);
}

.bs-preview {
  display: block;
  font-size: 11px;
  color: var(--text-light);
  margin-top: 2px;
}
.bs-equiv { color: var(--text-light); font-weight: 400; font-size: 12px; }

.link-chico {
  display: inline-block;
  margin-top: 6px;
  font-size: 11px;
  color: var(--primary);
  cursor: pointer;
  text-decoration: underline;
}

.select-con-boton {
  display: grid;
  grid-template-columns: 1fr 34px;
  gap: 6px;
}
.btn-mini-add {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
}
.btn-mini-add:hover { background: var(--primary-dark); }

.badge-pago {
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(107,119,133,0.12);
  color: var(--text-light);
}
.badge-pago.credito { background: rgba(232,114,12,0.12); color: var(--primary-dark); }

/* ============ CAMPOS USD / BS PAREADOS ============ */
.form-row-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}
@media (max-width: 620px) {
  .form-row-3 { grid-template-columns: 1fr; }
}

.campo-moneda { margin-top: 2px; }
.input-moneda {
  position: relative;
  display: flex;
  align-items: center;
}
.input-moneda .prefijo {
  position: absolute;
  left: 11px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text-light);
  pointer-events: none;
}
.input-moneda input {
  padding-left: 32px !important;
}

/* ============ ETIQUETAS CON COLOR ============ */
.etiquetas-editor {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
  margin-top: 4px;
}
.etiquetas-fila {
  display: grid;
  grid-template-columns: 1fr auto 34px;
  gap: 8px;
  align-items: center;
}
.etiquetas-fila input { margin: 0; }

.paleta-colores { display: flex; gap: 5px; }
.color-opcion {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.1s ease;
}
.color-opcion:hover { transform: scale(1.15); }
.color-opcion.activo { border-color: var(--dark); }

.etiquetas-lista {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
}
.chip-etiqueta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  color: #fff;
}
.chip-etiqueta .quitar {
  cursor: pointer;
  opacity: 0.8;
  font-weight: 700;
}
.chip-etiqueta .quitar:hover { opacity: 1; }
.chip-tabla {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  margin-right: 4px;
}
.badge-marca {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  background: rgba(31,45,61,0.08);
  color: var(--dark);
}

/* ============ MODULO DE INVENTARIO ============ */
.toolbar-card { padding: 16px 18px; }

.toolbar-fila-1 {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 12px;
}
.buscador-toolbar { margin-bottom: 0; flex: 1; }

.vistas-switch {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.btn-vista {
  border: none;
  background: var(--card-bg);
  padding: 9px 14px;
  cursor: pointer;
  font-size: 15px;
  color: var(--text-light);
  border-right: 1px solid var(--border);
  transition: background 0.15s ease, color 0.15s ease;
}
.btn-vista:last-child { border-right: none; }
.btn-vista:hover { background: var(--bg); }
.btn-vista.active { background: var(--primary); color: #fff; }

.toolbar-fila-2 {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.filtro-select {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 12px;
  font-family: inherit;
  background: var(--card-bg);
  color: var(--text);
  cursor: pointer;
  max-width: 200px;
}
.filtro-select:focus { outline: 2px solid rgba(232,114,12,0.3); }

.check-archivados {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--text-light);
  cursor: pointer;
}

.toolbar-fila-3 {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}
.chips-filtros { display: flex; flex-wrap: wrap; gap: 6px; }
.chip-filtro {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(232,114,12,0.1);
  color: var(--primary-dark);
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}
.chip-filtro .quitar { cursor: pointer; font-weight: 700; }
.contador-items { font-size: 13px; color: var(--text-light); white-space: nowrap; }
.contador-items strong { color: var(--dark); }

/* --- Grupos (agrupar por) --- */
.grupo-encabezado {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg);
  padding: 8px 12px;
  border-radius: 8px;
  margin: 16px 0 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--dark);
}
.grupo-encabezado:first-child { margin-top: 0; }
.grupo-encabezado .grupo-meta { font-weight: 500; color: var(--text-light); font-size: 12px; }

/* --- Acciones por fila --- */
.acciones-fila { display: flex; gap: 4px; justify-content: flex-end; }
.btn-icono {
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 6px;
  font-size: 14px;
  line-height: 1;
  transition: background 0.15s ease;
}
.btn-icono:hover { background: var(--bg); }

.fila-archivada { opacity: 0.5; }

/* --- Vista de tarjetas (kanban) --- */
.grid-tarjetas {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
}
.tarjeta-producto {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  display: flex;
  flex-direction: column;
}
.tarjeta-producto:hover { transform: translateY(-3px); box-shadow: 0 12px 26px rgba(31,45,61,0.12); }
.tarjeta-foto {
  width: 100%;
  height: 120px;
  object-fit: contain;
  background: var(--bg);
  border-radius: 8px;
  margin-bottom: 10px;
}
.tarjeta-foto-vacia {
  width: 100%;
  height: 120px;
  background: var(--bg);
  border-radius: 8px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--border);
  font-size: 32px;
}
.tarjeta-codigo { font-size: 11px; color: var(--text-light); }
.tarjeta-nombre {
  font-size: 13px;
  font-weight: 600;
  color: var(--dark);
  margin: 3px 0 8px;
  line-height: 1.3;
  min-height: 34px;
}
.tarjeta-precio { font-size: 16px; font-weight: 700; color: var(--primary); }
.tarjeta-precio-bs { font-size: 11px; color: var(--text-light); margin-bottom: 8px; }
.tarjeta-pie {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px solid var(--border);
}
.badge-stock {
  padding: 2px 9px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 700;
}
.badge-stock.ok { background: rgba(31,157,85,0.12); color: var(--good); }
.badge-stock.bajo { background: rgba(214,158,46,0.15); color: #b7791f; }
.badge-stock.sin { background: rgba(214,69,69,0.12); color: var(--bad); }

.vacio-mensaje {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-light);
  font-size: 14px;
}

/* --- KPI extra --- */
.kpi-sub { font-size: 11px; color: var(--text-light); margin-top: 4px; }
.card.kpi.kpi-alerta { border-left-color: var(--bad); }

/* --- Detalle del producto --- */
.detalle-header { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.detalle-header h3 { margin: 0; }
.detalle-contenido { display: grid; grid-template-columns: 150px 1fr; gap: 18px; }
@media (max-width: 560px) {
  .detalle-contenido { grid-template-columns: 1fr; }
}
.detalle-foto {
  width: 100%;
  border-radius: 10px;
  object-fit: contain;
  background: var(--bg);
  max-height: 150px;
}
.detalle-campos { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; }
.detalle-campo .etiqueta { font-size: 11px; color: var(--text-light); display: block; }
.detalle-campo .valor { font-size: 13px; color: var(--text); font-weight: 600; }
.detalle-campo.ancho { grid-column: 1 / -1; }
.detalle-acciones { flex-wrap: wrap; }

.btn-danger {
  background: transparent;
  border: 1px solid rgba(214,69,69,0.4);
  color: var(--bad);
  padding: 9px 16px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}
.btn-danger:hover { background: rgba(214,69,69,0.08); }

.btn-mini-tag {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  width: 34px;
  height: 34px;
  font-weight: 700;
  font-size: 16px;
  cursor: pointer;
}
.btn-mini-tag:hover { background: var(--primary-dark); }

.nota-form {
  font-size: 11px;
  color: var(--text-light);
  background: var(--bg);
  padding: 8px 10px;
  border-radius: 6px;
  margin: 14px 0 0;
}

/* Imagen que no cargo: mostramos un marcador en vez del icono roto */
.foto-rota {
  background: var(--bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23c3c9d0' stroke-width='2'%3E%3Cpath d='M21 16V8a2 2 0 0 0-1-1.73l-7-4a2 2 0 0 0-2 0l-7 4A2 2 0 0 0 3 8v8a2 2 0 0 0 1 1.73l7 4a2 2 0 0 0 2 0l7-4A2 2 0 0 0 21 16z'/%3E%3C/svg%3E") center/28px no-repeat;
  border: 1px solid var(--border);
}