:root {
    --pickled-bluewood: #2a3b4f;
    --polar: #f4fbfd;
    --trout: #4e5963;
    --raven: #79828d;
    --hit-gray: #a8b1b9;
    --botticelli: #d9e3eb;
    --ebony-clay: #26303b;
    --ghost: #c3c9d2;
    /* Unified button colors */
    --btn-color: #6c757d;
    --btn-hover-color: #5a6268;
  }


  body {
    font-family: Arial, sans-serif;
    margin: 0;
    background: var(--polar);
    color: #222;
  }

  header {
    background: var(--botticelli);
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
  }

  .header-left {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  #sidebarToggle {
    background: transparent;
    border: 1px solid var(--trout);
    color: var(--trout);
    font-size: 18px;
    padding: 4px 10px;
    cursor: pointer;
    transition: all 0.3s;
  }

  #sidebarToggle:hover {
    background: var(--trout);
    color: white;
  }

  header h2 {
    margin: 0;
  }

  .user-info {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .user-info__text {
    display: flex;
    flex-direction: column;
    text-align: right;
    font-size: 14px;
    color: #222;
  }

  .user-info__text small {
    font-size: 11px;
    color: #555;
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }

  .app {
    display: flex;
    height: calc(100vh - 60px);
  }

  nav {
    width: 220px;
    background: var(--ghost);
    padding: 20px;
    transition: width 0.3s ease, padding 0.3s ease;
    overflow-x: hidden;
  }

  nav.collapsed {
    width: 0;
    padding: 20px 0;
  }

  nav a {
    display: block;
    padding: 10px;
    margin-bottom: 10px;
    text-decoration: none;
    color: var(--ebony-clay);
    border-radius: 6px;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.2s;
  }

  nav a.active {
    background: #eaf3ff;
  }

  main {
    flex: 1;
    padding: 10px;
    overflow-y: auto;
    transition: margin-left 0.3s ease;
  }

  /* ---- Carta de resumen ---- */

  .card {
    background: #fff;
    border: 1px solid var(--hit-gray);
    border-radius: 6px;
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  }

  .card h3 {
    margin-top: 0;
  }

  table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
  }

  .alert {
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 16px;
  }

  /* Alertas importante */
  .alerta-pendiente {
    background-color: #cc1c1c73;
    border: 1px solid #f67171ff;
    color: #800000;
  }

  /* Alertas positivas */
  .alerta-ok {
    background-color: #3494599c;
    border: 1px solid #94ff99ff;
    color: #024402;
  }

  .hidden {
    display: none;
  }

  /* ---- Formularios ---- */
  form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    background: #fdfdfd;
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--hit-gray);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.05);
  }

  /* ---- Cartas de herramientas principal ---- */
  .tools-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 16px;
  }

  .tool-card {
    background: #fff;
    border: 1px solid #c9c9ff;
    border-radius: 8px;
    padding: 10px;
    text-align: center;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  }

  .tool-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 6px;
    margin-bottom: 10px;
  }

  /* ---- lo que permite ver luego de Ver más ---- */
  .modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: none;
    justify-content: center;
    align-items: center;
  }

  .modal-content {
    position: relative;
    background: #fff;
    padding: 20px;
    border-radius: 6px;
    width: 600px;
    max-width: 90%;
    max-height: 85vh;
    overflow-y: auto;
  }

  .modal-content h3 {
    margin-top: 0;
  }

  .close {
    position: absolute;
    top: 15px;
    right: 15px;
    cursor: pointer;
    font-size: 28px;
    font-weight: normal;
    color: #999;
    line-height: 1;
    transition: color 0.2s ease;
  }

  .close:hover {
    color: #333;
  }

  /* ===== INVENTORY MODALS STYLING ===== */

  /* Modal de Detalles - Vista de herramienta */
  #modalDetalles .modal-content {
    padding: 30px;
    max-width: 500px;
  }

  #modalDetalles h3 {
    margin-top: 0;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--botticelli);
    color: var(--ebony-clay);
    font-size: 22px;
  }

  #modalDetalles img {
    margin-bottom: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  }

  #modalDetalles p {
    margin: 12px 0;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 3px solid var(--btn-color);
  }

  #modalDetalles p strong {
    display: inline-block;
    min-width: 100px;
    color: var(--trout);
    font-weight: 600;
  }

  /* Modal de Editar - Formulario de edición */
  #modalEditar .modal-content {
    padding: 30px;
    max-width: 600px;
  }

  #modalEditar h3 {
    margin-top: 0;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid var(--botticelli);
    color: var(--ebony-clay);
    font-size: 22px;
  }

  #modalEditar .form-group {
    margin-bottom: 20px;
  }

  #modalEditar .form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--trout);
    font-weight: 600;
    font-size: 14px;
  }

  #modalEditar .form-control,
  #modalEditar .form-select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
  }

  #modalEditar .form-control:focus,
  #modalEditar .form-select:focus {
    border-color: var(--btn-color);
    box-shadow: 0 0 0 3px rgba(108, 117, 125, 0.1);
    outline: none;
  }

  #modalEditar button[type="submit"] {
    margin-top: 10px;
    width: 100%;
    padding: 12px;
    font-size: 16px;
    font-weight: 600;
  }

  /* ---- Buscador principal ---- */
  .search-bar {
    margin-bottom: 10px;
    display: flex;
    gap: 10px;
  }

  /* ---- distancia entre el buscador y las cartas de herramientas ---- */
  .search-bar input {
    flex-grow: 1;
    width: auto;
    padding: 10px;
    border: 1px solid #8d8c8c;
    border-radius: 6px;
    color: black;
  }

  /* ---- categoria del principal ---- */
  #filtroCategoria {
    width: auto;
    min-width: 150px;
    padding: 10px;
    background-color: #fff;
    border: 1px solid #8d8c8c;
    border-radius: 6px;
  }

  .file-upload input[type="file"] {
    display: none;
    /* Oculta el input feo */
  }

  /* Ajuste para el boton de subir  */
  .file-upload {
    grid-column: span 2;
    /* ocupa toda la fila */
    display: flex;
    align-items: center;
    gap: 12px;
  }

  #nombreArchivo {
    font-style: Arial;
    color: #000000;
  }

  /* --- FORMULARIO DE PRÉSTAMOS --- */
  #prestamos form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 25px;
    background: #fdfdfd;
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--hit-gray);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.05);
  }

  #prestamos form button {
    border-radius: 6px;
  }

  #prestamos h3 {
    margin-bottom: 18px;
    color: #000000;
  }

  .lista-herramientas-prestamo {
    grid-column: 1 / -1;
    border: 1px dashed var(--hit-gray);
    border-radius: 10px;
    padding: 16px;
    min-height: 88px;
    background: #fff;
    display: flex;
    flex-direction: column;
    gap: 12px;
  }

  .lista-herramientas-prestamo__empty {
    margin: 0;
    color: #6b6b6b;
    font-size: 14px;
  }

  .lista-herramientas-prestamo table {
    width: 100%;
  }

  .lista-herramientas-prestamo .btn-quitar-herramienta {
    background: transparent;
    color: #b80000;
    border: 1px solid #b80000;
    padding: 6px 10px;
    font-size: 12px;
  }

  .lista-herramientas-prestamo .btn-quitar-herramienta:hover {
    background: #b80000;
    color: #fff;
  }

  .login-body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--polar);
  }

  .login-card {
    width: min(360px, 92%);
    background: #fff;
    border-radius: 12px;
    padding: 32px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    display: flex;
    flex-direction: column;
    gap: 18px;
  }

  .login-card form {
    display: flex;
    flex-direction: column;
    gap: 14px;
  }

  .login-card input {
    padding: 12px 14px;
    border-radius: 6px;
    border: 1px solid #cfd8dc;
    font-size: 15px;
  }

  .login-error {
    color: #b80000;
    font-weight: 600;
    text-align: center;
    min-height: 18px;
  }

  .modal-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: flex-end;
    margin-top: 12px;
  }

  .modal-actions--split {
    justify-content: space-between;
  }

  .modal-actions button {
    flex: 1;
    min-width: 140px;
  }

  /* ===========================
   🌟 ESTILO GENERAL DE TABLAS 
   =========================== */

  #formAgregar {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    background: #fdfdfd;
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--hit-gray);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.05);
  }

  .logo-container {
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .logo {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    object-fit: contain;
  }

  /* del reporte */
  .report-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 15px;
  }

  .btn-sugerencias {
    position: absolute;
    right: 5px;
    top: 4px;
    background: transparent;
    border: none;
    font-size: 18px;
    cursor: pointer;
  }

  .sugerencias {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid #ccc;
    border-radius: 4px;
    width: 96%;
    max-height: 100px;
    overflow-y: auto;
    display: none;
    z-index: 999;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.15);
  }

  .sugerencias div {
    padding: 6px;
    cursor: pointer;
  }

  .sugerencias div:hover {
    background: #eee;
  }

  #filtroInventarioCategoria {
    width: auto;
    min-width: 150px;
    padding: 10px;
    background-color: #fff;
    border: 1px solid #8d8c8c;
    border-radius: 6px;
  }

  /* Para las filas con préstamos Vencidos (Alerta ACTIVA) */
  .alerta-vencido {
    background-color: #fce3e3 !important;
    /* Fondo rojo muy claro */
    color: #bc0303;
    /* Texto rojo */
    font-weight: bold;
    border-left: 5px solid #bc0303;
  }

  /* Para las filas de préstamos CERRADOS por deuda (Histórico de Deuda) */
  /* Estados: 'Transferido a No Devuelto' o 'Perdido Cerrado' */
  .alerta-nodevuelto-cerrado {
    background-color: #f8b5b5 !important;
    /* Fondo ligeramente diferente (más fuerte) */
    color: #8b0000;
    /* Texto rojo oscuro */
    font-style: italic;
    opacity: 0.85;
    /* Para mostrar que es un registro cerrado */
    border-left: 5px solid #bc0303;
  }


  /* Para las filas con estado Roto o Desaparecido */
  .alerta-inventario-afectado {
    background-color: #fff0e0 !important;
    /* Fondo anaranjado muy claro */
    color: #cc6600;
    /* Texto naranja oscuro/rojo */
    font-weight: 500;
    border-left: 5px solid #ff9900;
    /* Borde izquierdo naranja */
    opacity: 0.9;
  }

  /* Responsive Fix for Category Button */
  @media (max-width: 768px) {
    .search-bar {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .search-bar input {
      width: 100%;
    }

    #filtroCategoria,
    #filtroInventarioCategoria {
      width: 100%;
    }
  }