* {
    box-sizing: border-box;
}

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

body {
    min-height: 100vh;

    font-family: Arial, Helvetica, sans-serif;

    background: #181818;
    color: #fff;
}

/* HEADER */

.site-header {
    height: 64px;

    display: flex;
    align-items: center;

    padding: 0 20px;

    background: #222;
    border-bottom: 1px solid #333;
}

.site-title {
    margin: 0;

    font-size: 19px;
    font-weight: 600;
}

/* HOME */

.home {
    min-height: calc(100vh - 64px);

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

    padding: 30px;
}

/* HOME CARD */

.home-card {
    width: 100%;
    max-width: 560px;

    background: #202020;
    border: 1px solid #333;
    border-radius: 10px;

    padding: 40px;
}

.home-content {
    text-align: center;
}

/* LABEL */

.home-label {
    display: block;

    margin-bottom: 12px;

    color: #aaa;

    font-size: 12px;
    font-weight: 600;

    letter-spacing: 1px;
}

/* TITLE */

.home-title {
    margin: 0 0 14px;

    font-size: 28px;
    font-weight: 600;
}

/* DESCRIPTION */

.home-description {
    max-width: 440px;

    margin: 0 auto 28px;

    color: #aaa;

    font-size: 14px;
    line-height: 1.6;
}

/* BUTTON */

.button {
    display: inline-flex;
    justify-content: center;
    align-items: center;

    min-height: 44px;

    padding: 0 20px;

    border: none;
    border-radius: 7px;

    font-size: 14px;
    font-weight: 500;

    text-decoration: none;

    cursor: pointer;

    transition:
        background-color 0.15s ease,
        transform 0.15s ease;
}

.button-primary {
    background: #4d75ff;
    color: #fff;
}

.button-primary:hover {
    background: #5c82ff;
}

.button-primary:active {
    transform: translateY(1px);
}

/* RESPONSIVE */

@media (max-width: 600px) {
    .home {
        padding: 20px;
    }

    .home-card {
        padding: 30px 24px;
    }

    .home-title {
        font-size: 24px;
    }

    .button {
        width: 100%;
    }
}