@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600&display=swap');

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(-45deg, #ff4e50, #fc913a, #f9d423, #00c9ff, #92fe9d);
    background-size: 400% 400%;
    animation: gradientBG 12s ease infinite;
    padding: 20px;
}

.container {
    background: rgba(255, 255, 255, 0.15);
    padding: 35px 30px;
    border-radius: 20px;
    backdrop-filter: blur(12px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    text-align: center;
    color: #ffffff;
    max-width: 400px;
    width: 100%;
    transition: transform 0.3s ease;
}

.container:hover {
    transform: scale(1.02);
}

h1 {
    font-size: 2rem;
    margin-bottom: 25px;
    font-weight: 600;
}

label {
    font-size: 1.1rem;
    margin-bottom: 8px;
    display: block;
}

select,
input {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
    border-radius: 12px;
    border: none;
    margin-bottom: 20px;
    background-color: rgba(255, 255, 255, 0.2);
    color: #fff;
    outline: none;
    transition: background 0.3s ease;
}

select:focus,
input:focus {
    background-color: rgba(255, 255, 255, 0.3);
}

::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

button {
    background: linear-gradient(45deg, #ff0080, #ff8c00);
    border: none;
    padding: 14px 28px;
    font-size: 1.1rem;
    border-radius: 12px;
    cursor: pointer;
    color: white;
    font-weight: 600;
    transition: all 0.3s ease-in-out;
    box-shadow: 0 6px 20px rgba(255, 140, 0, 0.5);
}

button:hover {
    transform: scale(1.07);
    box-shadow: 0 12px 28px rgba(255, 140, 0, 0.7);
}

#resultado {
    margin-top: 25px;
    font-size: 1.2rem;
    line-height: 1.6;
}