body {
    font-family: 'Nunito', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px;
    min-height: 100vh;
}
header {
    width: 100%;
    display: flex;
    align-items: center;
    padding: 15px 30px;
    background-color: rgba(0, 0, 0, 0.5);
    color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
header img {
    height: 60px;
    margin-right: 15px;
}
.portal-title {
    margin: 30px 0;
    font-size: 36px;
    font-weight: 700;
    color: #fff;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}
.features-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    max-width: 1200px;
}
.feature-box {
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 12px rgba(0,0,0,0.1);
    margin: 15px;
    width: 220px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
    overflow: hidden;
    border: 1px solid #ddd;
}
.feature-box:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0,0,0,0.2);
}
.feature-box img {
    width: 100%;
    height: 140px;
    object-fit: cover;
}
.feature-box h2 {
    margin: 15px 0;
    color: #0066cc;
    font-size: 18px;
    font-weight: 600;
    padding: 0 10px;
}