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

body {
    font-family: 'Segoe UI', sans-serif;
    line-height: 1.6;
    background: #f4f4f4;
    color: #333;
}

header {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem 1rem;
}

header h1 {
    margin-bottom: 0.5rem;
}

main {
    max-width: 1000px;
    margin: 2rem auto;
    padding: 0 1rem;
}

h2 {
    margin-bottom: 1rem;
    color: #2c3e50;
}

.features {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.card {
    background: white;
    padding: 1.5rem;
    flex: 1 1 calc(33% - 1rem);
    min-width: 250px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

.card:hover {
    transform: translateY(-5px);
}

footer {
    text-align: center;
    padding: 1rem;
    background: #2c3e50;
    color: white;
    margin-top: 2rem;
}