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

body{
font-family:'Poppins',sans-serif;
background:#eef6f8;
color:#1e293b;
}

.header-principal{
background:linear-gradient(135deg,#0d9488,#2563eb);
padding:50px;
color:white;
}

.header-contenido{
max-width:1200px;
margin:auto;
display:flex;
align-items:center;
gap:25px;
}

.logo-energia{
width:110px;
background:white;
padding:10px;
border-radius:50%;
}

.titulo-proyecto{
font-size:2.2rem;
}

.seccion{
max-width:1200px;
margin:25px auto;
background:white;
padding:30px;
border-radius:18px;
box-shadow:0 5px 20px rgba(0,0,0,.08);
}

.titulo-seccion{
margin-bottom:20px;
color:#0d9488;
}

.form-dispositivo{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(250px,1fr));
gap:15px;
}

.form-grupo{
display:flex;
flex-direction:column;
}

.form-grupo input{
padding:12px;
border:1px solid #ccc;
border-radius:10px;
}

.btn-agregar{
background:#0d9488;
color:white;
border:none;
padding:14px;
border-radius:10px;
cursor:pointer;
}

.btn-agregar:hover{
background:#0f766e;
}

.tarjetas-contenedor{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
gap:20px;
}

.tarjeta{
background:white;
padding:20px;
border-radius:15px;
text-align:center;
border-top:5px solid #0d9488;
box-shadow:0 4px 15px rgba(0,0,0,.08);
}

.tarjeta p{
font-size:2rem;
font-weight:bold;
margin-top:10px;
}

.tabla-consumo{
width:100%;
border-collapse:collapse;
}

.tabla-consumo th{
background:#0d9488;
color:white;
padding:12px;
}

.tabla-consumo td{
padding:12px;
text-align:center;
border-bottom:1px solid #ddd;
}

.btn-eliminar{
background:#ef4444;
color:white;
border:none;
padding:8px 12px;
border-radius:8px;
cursor:pointer;
}

.contenedor-grafico{
height:450px;
}

.footer-principal{
background:#0f172a;
color:white;
text-align:center;
padding:30px;
margin-top:30px;
}