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

/* Page background */
body {
    min-height: 100vh;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 20px;
}

/* Card */
.card {
    background: #ffffff;
    max-width: 480px;
    width: 100%;
    padding: 35px 30px;
    border-radius: 14px;
    text-align: center;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);

    animation: fadeSlide 1.2s ease forwards;
}

/* Heading */
.card h1 {
    color: #0f2027;
    margin-bottom: 15px;
    font-size: 28px;
}

/* Author */
.author {
    color: #2c5364;
    font-weight: 600;
    margin-bottom: 12px;
}

/* Description */
.description {
    color: #555;
    font-size: 16px;
    line-height: 1.6;
}

/* Animation */
@keyframes fadeSlide {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile optimization */
@media (max-width: 480px) {
    .card h1 {
        font-size: 24px;
    }

    .description {
        font-size: 15px;
    }
}