body {
    margin: 0;
    font-family: 'Segoe UI', Arial, sans-serif;
    background: linear-gradient(135deg, #f8fafc 0%, #e0e7ff 100%);
    color: #222;
}
header {
    text-align: center;
    padding: 2rem 1rem 1rem 1rem;
    background: linear-gradient(90deg, #6366f1 0%, #60a5fa 100%);
    color: #fff;
    box-shadow: 0 2px 8px rgba(99,102,241,0.08);
}
header h1 {
    margin: 0 0 0.5rem 0;
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: 1px;
}
header p {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 400;
}
main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}
.category {
    margin-bottom: 2.5rem;
    background: #fff;
    border-radius: 1rem;
    box-shadow: 0 4px 24px rgba(99,102,241,0.07);
    padding: 1.5rem 1rem;
}
.category h2 {
    margin-top: 0;
    font-size: 2rem;
    color: #6366f1;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-align: left;
}
.screenshots {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}
.screenshots img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 0.75rem;
    box-shadow: 0 2px 12px rgba(99,102,241,0.10);
    transition: transform 0.2s, box-shadow 0.2s;
    background: #f3f4f6;
}
.screenshots img:hover {
    transform: scale(1.04);
    box-shadow: 0 6px 24px rgba(99,102,241,0.18);
    z-index: 2;
}
footer {
    text-align: center;
    padding: 1.5rem 1rem;
    background: #6366f1;
    color: #fff;
    border-radius: 0 0 1rem 1rem;
    margin-top: 2rem;
    font-size: 1rem;
}
@media (max-width: 700px) {
    header h1 {
        font-size: 1.7rem;
    }
    .category h2 {
        font-size: 1.3rem;
    }
    .screenshots img {
        height: 140px;
    }
    main {
        padding: 0 0.5rem;
    }
}
@media (max-width: 500px) {
    .screenshots {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .category {
        padding: 1rem 0.5rem;
    }
    footer {
        font-size: 0.9rem;
    }
}