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

body{
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    color: #333;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}


header{
    background: linear-gradient(90deg, #1e3c72, #2a5298);
    color: white;
    text-align: center;
    padding: 40px 20px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

header h1{
    font-size: 2.5rem;
    margin-bottom: 10px;
}

header p{
    font-size: 1.1rem;
    opacity: 0.9;
}

.seta-preta {
    position: absolute;
    top: 20px;
    left: 50px;
    font-size: 34px;
    color: white;
    text-decoration: none;
}

main{
    flex: 1;
    width: 90%;
    max-width: 900px;
    margin: 40px auto;
}


section{
    background: white;
    padding: 25px;
    margin-bottom: 25px;
    border-radius: 15px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

section:hover{
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.25);
}

section h2{
    color: #1e3c72;
    margin-bottom: 15px;
    border-left: 5px solid #2a5298;
    padding-left: 10px;
}

p{
    line-height: 1.6;
    margin-bottom: 10px;
}

ul{
    margin-left: 20px;
}

ul li{
    margin-bottom: 8px;
    padding-left: 5px;
}

strong{
    color: #2a5298;
}

footer{
    background: #1e3c72;
    color: white;
    text-align: center;
    padding: 15px;
    font-size: 0.9rem;
}