* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --color-azul: #1E5FA8;
            --color-azul-oscuro: #164175;
            --color-naranja: #FF8C00;
            --color-naranja-claro: #FFA500;
            --color-verde: #28A745;
            --color-verde-claro: #5CB85C;
            --color-gris: #F8F9FA;
            --color-texto: #333333;
            --color-blanco: #FFFFFF;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, var(--color-azul) 0%, var(--color-azul-oscuro) 100%);
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            padding: 10px;
        }

        .container {
            width: 100%;
            max-width: 500px;
            background: var(--color-blanco);
            border-radius: 20px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
            overflow: hidden;
        }

        .header {
            background: var(--color-blanco);
            padding: 20px;
            text-align: center;
            border-bottom: 1px solid rgba(0,0,0,0.1);
        }

        .header h1 {
            margin-bottom: 5px;
        }

        .header-logo {
            width: 100px;
            height: 80px;
            margin: 0 auto;
            display: block;
            object-fit: contain;
        }

        .header p {
            font-size: 14px;
            color: var(--color-azul);
            font-weight: 500;
        }

        .content {
            padding: 30px 20px;
        }

        /* Pantalla de Login */
        .login-form {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

        .form-group label {
            color: var(--color-texto);
            font-weight: 500;
            font-size: 14px;
        }

        .form-group input,
        .form-group select {
            padding: 15px;
            border: 2px solid #E0E0E0;
            border-radius: 10px;
            font-size: 16px;
            transition: all 0.3s;
            outline: none;
        }

        .form-group input:focus,
        .form-group select:focus {
            border-color: var(--color-azul);
            box-shadow: 0 0 0 3px rgba(30, 95, 168, 0.1);
        }

        /* Spinner de carga */
        .spinner {
            display: inline-flex;
            gap: 4px;
            align-items: center;
            justify-content: center;
        }

        .spinner.hidden {
            display: none;
        }

        .spinner > div {
            width: 8px;
            height: 8px;
            background-color: #fff;
            border-radius: 100%;
            display: inline-block;
            animation: bounce-delay 1.4s infinite ease-in-out both;
        }

        .spinner .bounce1 {
            animation-delay: -0.32s;
        }

        .spinner .bounce2 {
            animation-delay: -0.16s;
        }

        @keyframes bounce-delay {
            0%, 80%, 100% { 
                transform: scale(0);
            } 
            40% { 
                transform: scale(1.0);
            }
        }

        /* Botones */
        .btn {
            padding: 15px;
            border: none;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 600;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            cursor: pointer;
            transition: all 0.3s;
            text-align: center;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--color-naranja) 0%, var(--color-naranja-claro) 100%);
            color: var(--color-blanco);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(255, 140, 0, 0.4);
        }

        .btn-secondary {
            background: var(--color-gris);
            color: var(--color-texto);
            border: 2px solid #E0E0E0;
        }

        .btn-secondary:hover {
            background: #E9ECEF;
        }

        /* Menú Principal */
        .menu-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 15px;
        }

        .menu-item {
            background: var(--color-blanco);
            border: 3px solid transparent;
            border-radius: 15px;
            padding: 25px;
            cursor: pointer;
            transition: all 0.3s;
            text-align: center;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }

        .menu-item:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
        }

        .menu-item.motorizado {
            border-color: var(--color-naranja);
        }

        .menu-item.motorizado:hover {
            background: linear-gradient(135deg, #FFF5E6 0%, #FFE8CC 100%);
        }

        .menu-item.auxiliar {
            border-color: var(--color-azul);
        }

        .menu-item.auxiliar:hover {
            background: linear-gradient(135deg, #E8F5E9 0%, #C8E6C9 100%);
        }

        .menu-item.conductor {
            border-color: var(--color-verde);
        }

        .menu-item.conductor:hover {
            background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
        }

        .menu-item-icon {
            font-size: 48px;
            margin-bottom: 15px;
        }

        .menu-item h3 {
            font-size: 20px;
            color: var(--color-texto);
            margin-bottom: 8px;
        }

        .menu-item p {
            font-size: 14px;
            color: #666;
        }

        /* Lista de Tareas */
        .task-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 2px solid #E0E0E0;
        }

        .task-header h2 {
            color: var(--color-azul);
            font-size: 22px;
        }

        .task-stats {
            display: flex;
            gap: 20px;
            margin-bottom: 20px;
            padding: 15px;
            background: var(--color-gris);
            border-radius: 10px;
        }

        .stat {
            flex: 1;
            text-align: center;
        }

        .stat-number {
            font-size: 24px;
            font-weight: 700;
            color: var(--color-azul);
        }

        .stat-label {
            font-size: 12px;
            color: #666;
            margin-top: 5px;
        }

        .task-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-height: 450px;
            overflow-y: auto;
            padding-right: 5px;
        }

        .task-item {
            background: var(--color-blanco);
            border: 2px solid #E0E0E0;
            border-radius: 12px;
            padding: 15px;
            transition: all 0.3s;
            cursor: pointer;
        }

        .task-item:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            transform: translateX(5px);
        }

        .task-item.completed {
            background: #F1F8F4;
            border-color: var(--color-verde);
            opacity: 0.7;
        }

        .task-item-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 10px;
        }

        .task-title {
            font-weight: 600;
            color: var(--color-texto);
            font-size: 16px;
            flex: 1;
        }

        .task-item.completed .task-title {
            text-decoration: line-through;
            color: #999;
        }

        .task-status {
            padding: 5px 12px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 600;
        }

        .task-status.pending {
            background: #FFF3CD;
            color: #856404;
        }

        .task-status.completed {
            background: #D4EDDA;
            color: #155724;
        }

        .task-description {
            color: #666;
            font-size: 14px;
            margin-bottom: 10px;
        }

        .task-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: #999;
        }

        .task-date {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .task-priority {
            padding: 3px 8px;
            border-radius: 5px;
            font-size: 11px;
            font-weight: 600;
        }

        .priority-high {
            background: #F8D7DA;
            color: #721C24;
        }

        .priority-medium {
            background: #FFF3CD;
            color: #856404;
        }

        .priority-low {
            background: #D1ECF1;
            color: #0C5460;
        }

        .btn-back {
            margin-top: 20px;
        }

        /* Scrollbar personalizado */
        .task-list::-webkit-scrollbar {
            width: 8px;
        }

        .task-list::-webkit-scrollbar-track {
            background: var(--color-gris);
            border-radius: 10px;
        }

        .task-list::-webkit-scrollbar-thumb {
            background: var(--color-azul);
            border-radius: 10px;
        }

        /* Utilidades */
        .hidden {
            display: none !important;
        }

        .text-center {
            text-align: center;
        }

        .mb-20 {
            margin-bottom: 20px;
        }

        /* Animaciones */
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .fade-in {
            animation: fadeIn 0.4s ease-in-out;
        }

        /* Responsive */
        @media (max-width: 400px) {
            .header h1 {
                font-size: 24px;
            }
            
            .content {
                padding: 20px 15px;
            }

            .menu-item {
                padding: 20px;
            }

            .menu-item-icon {
                font-size: 40px;
            }
        }

#instalarBtn {
  background-color: #0078D7;
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 8px;
  font-size: 1rem;
  cursor: pointer;
}

#instalarBtn:hover {
  background-color: #005A9E;
}