body {
    background-color: #0f172a;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 20px 20px;
    color: #f8fafc;
    font-family: Arial, sans-serif;
    color: #333333;
    margin: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

body > div {
    max-width: 800px;
    width: 100%;
}

.titulo {
    background-color: #ffffff;
    padding: 25px;
    margin-bottom: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border-left: 5px solid #0056b3;
    text-align: center;
    animation: fadeIn 1s ease-out forwards;
    font-family: Georgia, 'Times New Roman', Times, serif;
}

.titulo h1 { margin: 0 0 10px 0; font-size: 30px; color: #060d4e;}
.titulo h2 { margin: 0; font-size: 25px;font-family: Georgia, 'Times New Roman', Times, serif; color: #666; font-weight: normal; }

.s1, .s2, .s3 ,.s4{
    background-color: #ffffff;
    padding: 25px;
    margin-bottom: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    
    opacity: 0;
    animation: fadeInUp 0.8s ease-out both;
}

.s1 { animation-delay: 0.2s; }
.s2 { animation-delay: 0.4s; }
.s3 { animation-delay: 0.6s; }
.s4 { animation-delay: 0.8s; }

.s1 h3, .s2 h3, .s3 h3, .s4 h4 {
    margin-top: 0;
    margin-bottom: 15px;
    color: #0056b3;
    border-bottom: 2px solid #f0f4f8;
    padding-bottom: 8px;
}

.s1-info, .s2-info {
    list-style: square;
    padding: 0;
    margin: 0;
}

.s1-info li, .s2-info li {
    padding: 8px 0;
    border-bottom: 1px dashed #5d5a5a;
}
.s1-info li:last-child, .s2-info li:last-child {
    border-bottom: none;
}

.ln-link {
    color: #1343bd;
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
    transition: color 0.3s ease, transform 0.2s ease;
}

.ln-link:hover {
    color: #b60606;
    transform: translateY(-1px);
}

.curso {
    background-color: #ffffff;
    padding: 12px;
    margin-bottom: 10px;
    border-radius: 8px;
    border: 1px solid #a4c1f5;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.links {
    background-color: #ffffff;
    padding: 12px;
    margin-bottom: 10px;
    border-radius: 8px;
    border: 1px solid #a4c1f5;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.curso:last-child {
    margin-bottom: 0;
}

.curso:hover {
    background-color: #abcaea;
    transform: scale(1.01) translateX(3px);
    box-shadow: 2px 4px 8px rgba(0, 0, 0, 0.04);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}