* {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: #f5f5f5;
    color: #222;
    font-family: Arial, Helvetica, sans-serif;
}

.page {
    width: 100%;
    min-height: 100vh;
    padding: 20px 14px;
}

.box {
    width: 100%;
    max-width: 430px;
    margin: 0 auto;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 10px;
    padding: 22px 16px;
}

h1 {
    margin: 0 0 18px;
    text-align: center;
    font-size: 26px;
    line-height: 1.2;
}

.intro {
    margin: 0 0 22px;
    font-size: 16px;
    line-height: 1.5;
    text-align: center;
}

.buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.action {
    display: flex;
    width: 100%;
    min-height: 52px;
    padding: 12px 14px;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    text-decoration: none;
    text-align: center;
    font-size: 16px;
    font-weight: 700;
    line-height: 1.25;
}

.primary {
    background: #2563eb;
    color: #fff;
}

.secondary {
    background: #fff;
    color: #222;
    border: 1px solid #999;
}

.telegram {
    background: #229ed9;
    color: #fff;
}

.disabled {
    background: #e5e5e5;
    color: #888;
    border: 1px solid #ccc;
    cursor: not-allowed;
}

.test-note {
    margin: 20px 0 0;
    text-align: center;
    color: #777;
    font-size: 13px;
}

@media (max-width: 480px) {
    .page {
        padding: 12px;
    }

    .box {
        padding: 20px 14px;
        border-radius: 8px;
    }

    h1 {
        font-size: 24px;
    }

    .action {
        min-height: 54px;
        font-size: 16px;
    }
}