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

body {
    font-family: Arial, sans-serif;
    background: #f5f6fa;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px 10px;
}

.container {
    width: 100%;
    max-width: 700px;
    text-align: center;
}

.headline {
    color: #d40000;
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 15px;
    animation: fadeIn .8s ease;
}

.alert-box {
    background: linear-gradient(135deg, #fff26d, #ffd83b);
    border-radius: 20px;
    padding: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, .15);
    animation: slideUp .8s ease;
}

.pulse-icon {
    font-size: 40px;
    margin-bottom: 15px;
    animation: pulse 1.5s infinite;
}

.alert-box h2 {
    font-size: 26px;
    margin-bottom: 15px;
    color: #111;
    font-weight: bold;
}

.alert-box p {
    color: #333;
    font-size: 20px;
    line-height: 1.5;
}

.ligacao {
    margin-top: 25px;
    font-weight: 700;
}

.timer {
    margin-top: 10px;
    font-size: 64px;
    font-weight: 900;
    color: #d40000;
    text-shadow: 0 3px 10px rgba(212, 0, 0, .25);
}

.info {
    margin: 30px 0;
    font-size: 22px;
    color: #444;
}

.btn-whatsapp {
    display: inline-block;
    background: #25D366;
    color: white;
    text-decoration: none;
    padding: 18px 45px;
    border-radius: 60px;
    font-size: 24px;
    font-weight: 700;
    transition: .3s;
    box-shadow: 0 10px 25px rgba(37, 211, 102, .35);
}

.btn-whatsapp:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 35px rgba(37, 211, 102, .5);
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.08);
    }

    100% {
        transform: scale(1);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@media(max-width:768px) {

    .headline {
        font-size: 26px;
    }

    .alert-box h2 {
        font-size: 24px;
    }

    .timer {
        font-size: 48px;
    }

    .btn-whatsapp {
        width: 100%;
        font-size: 20px;
    }

}