@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&display=swap');

* {
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
    box-sizing: border-box;
}

body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: url(chapa.jpg) no-repeat;
    background-size: cover;
    background-position: center;
}

.container {
    width: 900px;
    background: transparent;
    border: solid 2px rgba(255, 255, 255, .2);
    backdrop-filter: blur(10px);
    color: white;
    border-radius: 10px;
    padding: 30px 40px;
    height: 65vh;
    background-size: cover;
}

.container h1 {
    font-size: 20px;
    text-align: center;
}

.container .caixa {
    position: relative;
    width: 100%;
    height: 50px;
    margin: 30px 0;
}

.caixa input {
    width: 100%;
    height: 100%;
    background: transparent;
    border: solid 2px rgba(255, 255, 255, .2);
    border-radius: 40px;
    outline: none;
    font-size: 16px;
    color: white;
    padding: 20px 45px 20px 20px;
}

.caixa input::placeholder {
    color: white;
}

.caixa i {
    position: absolute;
    right: 20px;
    top: 30px;
    transform: translateY(-50%);
    font-size: 25px;
}

a {
    text-decoration: none;
    color: white;
}

a:hover {
    text-decoration: underline;
}

input[type="submit"] {
    width: 100%;
    height: 45px;
    background: white;
    border: none;
    border-radius: 40px;
    box-shadow: 0 0 10px black;
    cursor: pointer;
    font-size: 16px;
    color: black;
    font-weight: 600;
}

form {
    margin-top: 50px;
    position: relative;
}

.alert {
    display: none;
    color: white;
    font-size: 16px;
    text-align: center;
}
.back-button {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    background: transparent;
    font-size: 24px;
    font-weight: bold;
    margin-top: 20px;
    border: 2px solid transparent;
    padding: 10px 20px;
    border-radius: 5px;
    transition: background-color 0.3s, color 0.9s;
}
.back-button:hover {
   
    background: transparent;
}

.back-button i {
    margin-right: 8px;
    color: white;
}


@media screen and (max-width: 768px) {
    container {
        width: 900px;
        background: transparent;
        border: solid 2px rgba(255, 255, 255, .2);
        backdrop-filter: blur(10px);
        color: white;
        border-radius: 10px;
        padding: 40px 50px;
        height: 56vh;
    }
}


@media screen and (max-width: 480px) {
    .container {
        width: 900px;
        background: transparent;
        border: solid 2px rgba(255, 255, 255, .2);
        backdrop-filter: blur(5px);
        color: white;
        border-radius: 10px;
        padding: 40px 50px;
        height: 65vh;
    }
}