* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;

    background: #0f172a;
    color: white;

    font-family: Arial, sans-serif;

    display: flex;
    justify-content: center;
    align-items: center;
}

.box {
    width: min(430px, calc(100% - 30px));

    background: #1e293b;

    padding: 28px;

    border-radius: 18px;
}

h2 {
    margin-top: 0;
    margin-bottom: 10px;
}

.description {
    color: #94a3b8;
    margin-bottom: 20px;
    line-height: 1.5;
}

label {
    display: block;
    margin-top: 14px;
    margin-bottom: 6px;
}

input,
textarea {
    width: 100%;

    padding: 12px;

    border: 0;
    border-radius: 9px;

    background: #334155;
    color: white;

    font-size: 15px;
}

textarea {
    min-height: 90px;
    resize: vertical;
}

button {
    width: 100%;

    margin-top: 20px;

    padding: 13px;

    border: 0;
    border-radius: 9px;

    background: #3b82f6;

    color: white;

    font-size: 15px;

    cursor: pointer;
}

.error,
.success {
    padding: 12px;
    border-radius: 9px;
    margin-bottom: 15px;
}

.error {
    background: #7f1d1d;
}

.success {
    background: #14532d;
}

.back {
    display: block;

    margin-top: 18px;

    text-align: center;

    color: #93c5fd;

    text-decoration: none;
}