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

body {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fff;
}

.center-container {
    width: 100%;
    max-width: 900px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.logo img {
    width: 170px;
    max-width: 80vw;
    height: auto;
    margin-bottom: 2rem;
}

.message {
    font-size: 2.5rem;
    font-weight: bold;
    color: #888;
    text-align: center;
    margin-bottom: 2.5rem;
    word-break: break-word;
}

.support-button {
    width: 350px;
    max-width: 90vw;
    height: 70px;
    text-align: center;
    cursor: pointer;
    margin: 0 auto;
    border: 3px solid #00937a;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.2s;
    background: #fff;
}

.contact-support {
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: 2px;
    color: #00937a;
    transition: color 0.2s;
}

.support-button:hover,
.support-button:focus {
    background-color: #f1f1f1;
}

.support-button:hover .contact-support,
.support-button:focus .contact-support {
    background-color: #f1f1f1;
}

a {
    text-decoration: none;
}

@media (max-width: 900px) {
    .message {
        font-size: 2rem;
    }

    .support-button {
        height: 56px;
        font-size: 1.1rem;
    }
}

@media (max-width: 600px) {
    .center-container {
        padding: 1rem 0.5rem;
    }

    .logo img {
        width: 120px;
        margin-bottom: 1.2rem;
    }

    .message {
        font-size: 1.2rem;
        margin-bottom: 1.2rem;
    }

    .support-button {
        width: 100%;
        min-width: 0;
        height: 48px;
    }

    .contact-support {
        font-size: 1rem;
        letter-spacing: 1px;
    }
}

.cirium-logo {
    max-width: 170px;
    max-height: 137px
}