*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Poppins", sans-serif;
}
body{
    background: linear-gradient(135deg, #0f172a, #1e293b);
    color: #f1f5f9;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/*header*/
header{
    background: rgba(255, 255, 255 , 0.05);
    backdrop-filter: blur(10px);
    padding: 25px;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0,1);
}
header h1{
    font-size: 2.2rem;
    margin-bottom: 15px;
    color: #93c5fd;
    font-weight: 600;
}
nav ul{
    list-style: none;
    display: flex;
    justify-content: center;
    gap: 25px;
}
nav a{
    text-decoration: none;
    color: #cbd5e1;
    font-weight: 500;
    transition: 0,3s ease;
}
nav a:hover{
    color: #93c5fd;
    text-shadow: 0 0 8px #60a5fa;
}
/*main*/

main{
    max-width: rgba(255, 255, 255, 0.06);
    padding: 35px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
    animation: fadeIn o.8s ease forwards;
}

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


.secciones h2{
    font-size: 2rem;
    margin-bottom: 20px;
    color: #93c5fd;
    text-align: center;
}

form{
    display: flex;
    flex-direction: column;
    gap: 18px;
}

label{
    font-size: 1rem;
    color: #bfdbfe;
    font-weight: 500;
}

input,
textarea{
    width: 100%;
    padding: 12px 15px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.07);
    color: #f1f5f9;
    font-size: 1rem;
    transition: 0.3s ease;
    resize: none;
}

input:focus,
textarea:focus{
    outline: none;
    border-color: #60a5fa;
    box-shadow: 0 0 10px rgba(96,165,250,0.4);
    background: rgba(255,255,255,0.12);

}

button{
    margin-top: 10px;
    padding: 12px;
    background: #3b82f6;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s ease;
}

button:hover{
    background: #60a5fa;
    box-shadow: 0 0 12px rgba(96,165,250,0.5);
    transform: translateY(-2px);
}

/*footer*/
footer{
    margin-top: auto;
    padding: 20px;
    text-align: center;
    background: rgba(255, 255, 255 , 0.05);
    border-top: 1px solid rgba(255, 255, 255, 0,1);
}
footer p{
    color: #93c5fd;
    font-weight: 500;
}