body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    background: white;
    padding-top: 80px;
}

main {
    padding: 2rem;
    max-width: 1200px;
    margin: auto;
}

h2 {
    margin-bottom: 1.5rem;
    text-align: center;
}

.tips {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.tip {
    flex: 1 1 250px;
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    font-size: 0.95rem;
}

footer {
    background: #0f4c75;
    color: white;
    text-align: center;
    padding: 1rem;
    margin-top: 3rem;
}