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

body {
    background: #0f1117;
    font-family: Arial, Helvetica, sans-serif;
    color: #ffffff;
}

.container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
}

h1 {
    text-align: center;
    font-size: 32px;
    margin-bottom: 15px;
}

.rate {
    text-align: center;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 25px;
    color: #8ee34f;
}

.section {
    margin-bottom: 10px;
}

.label {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #c9ced8;
}

.currency-box {
    background: #181c25;

    border: 1px solid #2d3442;
    border-radius: 18px;

    min-height: 110px;

    display: flex;
    align-items: center;
    justify-content: space-between;

    padding: 0 24px;

    transition: all .2s ease;
}

.currency-box:hover {
    border-color: #8ee34f;
    box-shadow: 0 0 20px rgba(142, 227, 79, 0.15);
}

.currency-input {
    border: none;
    outline: none;
    background: transparent;

    width: 100%;

    color: white;

    font-size: 36px;
    font-weight: 500;
}

.currency-input::placeholder {
    color: #667085;
}

.currency-right {
    display: flex;
    align-items: center;
    gap: 12px;

    min-width: 150px;
    justify-content: flex-end;

    font-size: 34px;
    font-weight: 700;

    color: white;
}

.flag {
    width: 40px;
    height: 40px;

    border-radius: 50%;
    object-fit: cover;
}

.arrow-container {
    display: flex;
    justify-content: center;
    margin: 18px 0;
}

.arrow {
    width: 64px;
    height: 64px;

    border-radius: 50%;

    background: #8ee34f;

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

    color: #111;

    font-size: 34px;
    font-weight: bold;

    user-select: none;

    box-shadow: 0 0 20px rgba(142, 227, 79, 0.35);
}

@media (max-width: 768px) {

    h1 {
        font-size: 32px;
    }

    .rate {
        font-size: 22px;
    }

    .currency-input {
        font-size: 34px;
    }

    .currency-right {
        font-size: 24px;
    }
}