:root {
    color-scheme: dark;
    font-family: Arial, Helvetica, sans-serif;
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
    margin: 0;
}

body {
    display: grid;
    min-height: 100vh;
    min-height: 100svh;
    padding: 24px;
    place-items: center;
    background: #000000;
    color: #ffffff;
}

.confirmation {
    width: min(760px, 100%);
    text-align: center;
}

.check {
    display: grid;
    width: 92px;
    height: 92px;
    margin: 0 auto 30px;
    place-items: center;
    border: 4px solid #35d07f;
    border-radius: 50%;
    color: #35d07f;
    font-size: 58px;
    font-weight: 700;
    line-height: 1;
}

h1 {
    margin: 0 0 22px;
    font-size: clamp(3rem, 10vw, 6.5rem);
    line-height: 1;
}

p {
    margin: 0;
    font-size: clamp(1.5rem, 4.5vw, 2.6rem);
    font-weight: 700;
    line-height: 1.35;
}

.closing-message {
    margin-top: 18px;
    color: #b9b9b9;
    font-size: clamp(1.1rem, 3.5vw, 1.65rem);
    font-weight: 400;
}