style.css

body {
    font-family: 'Kumbh Sans', sans-serif;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    justify-content: center;
    align-items: center;
    background-image: linear-gradient(-45deg, #022534 0%, #08546C 46%, #A0BACC 100%);
    background-attachment: fixed;
}

h1 {
    display: block;
    font-size: 2em;
    margin-block-start: 0.67em;
    margin-block-end: 0.67em;
    margin-inline-start: 0px;
    margin-inline-end: 0px;
    font-weight: bold;
}

.título {
    color: #f3bd09;
    font-size: 28px;
    display: inline;
    text-align: center;
    align-self: center;
    text-shadow: 6px 6px 12px #4f80e2, -6px -6px 12px #15cdca;
}

.caja1 textarea {
    width: 100%;
}

textarea {
    resize: none;
    font-family: 'Kumbh Sans', sans-serif;
    backdrop-filter: blur(12px) saturate(130%);
    -webkit-backdrop-filter: blur(12px) saturate(130%);
    background-color: transparent;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.125);
    padding: 1rem;
    font-size: 18px;
    color: #fafafa;
}

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

element.style {
    color: rgb(255, 255, 255);
}

.caja2 textarea {
    width: 100%;
}

button {
    display: inline-block;
    border-radius: 4px;
    background-color: transparent;
    border: none;
    color: #fafafa;
    text-align: center;
    font-size: 17px;
    padding: 16px;
    width: 150px;
    transition: all 0.5s;
    cursor: pointer;
    margin: 5px;
    box-shadow: 6px 6px 12px #4f80e2, -6px -6px 12px #15cdca;
}