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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: #333;
}

.thumbnail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.thumbnail-card {
    background: #f5f5f5;
    border-radius: 12px;
    padding: 15px;
    text-align: center;
}

.thumbnail-card img {
    max-width: 100%;
    border-radius: 8px;
    margin-bottom: 10px;
}

.download-btn {
    display: inline-block;
    background: #667eea;
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    text-decoration: none;
    margin-top: 10px;
}

button, .btn {
    background: #667eea;
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: transform 0.2s;
}

button:hover {
    transform: translateY(-2px);
}

.free-tag {
    text-align: center;
    margin-top: 30px;
    color: #10b981;
    font-weight: bold;
}

.pricing-card {
    border: 2px solid #667eea;
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    margin: 20px;
}