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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    max-width: 900px;
    width: 100%;
    background: white;
    border-radius: 30px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.3);
    padding: 60px 40px;
    text-align: center;
}

h1 {
    color: #667eea;
    font-size: 3em;
    margin-bottom: 20px;
}

.subtitle {
    color: #666;
    font-size: 1.3em;
    margin-bottom: 50px;
    line-height: 1.6;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    padding: 40px 30px;
    color: white;
    text-decoration: none;
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.5);
}

.card-icon {
    font-size: 4em;
}

.card-title {
    font-size: 1.8em;
    font-weight: bold;
    margin-bottom: 10px;
}

.card-description {
    font-size: 1em;
    opacity: 0.95;
    line-height: 1.5;
}

.features {
    margin-top: 60px;
    text-align: left;
    background: #f8f9fa;
    border-radius: 20px;
    padding: 40px;
}

.features h2 {
    color: #667eea;
    margin-bottom: 25px;
    text-align: center;
}

.features ul {
    list-style: none;
    padding: 0;
}

.features li {
    padding: 15px 0;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1.1em;
}

.features li:last-child {
    border-bottom: none;
}

.features li::before {
    content: '✅';
    font-size: 1.5em;
}

.footer {
    margin-top: 50px;
    padding-top: 30px;
    border-top: 2px solid #e0e0e0;
    color: #666;
}

@media (max-width: 768px) {
    .container {
        padding: 40px 20px;
    }

    h1 {
        font-size: 2em;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }
}