body {
    font-family: 'Inter', 'Segoe UI', sans-serif;
    background: #f2f4f8;
    margin: 0;
    padding: 0;
}

header {
    background: linear-gradient(135deg, #4f46e5, #3b82f6);
    padding: 2rem 1rem;
    text-align: center;
    color: white;
    border-bottom-left-radius: 1.5rem;
    border-bottom-right-radius: 1.5rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

header h1 {
    margin: 0;
    font-size: 1.8rem;
    font-weight: 600;
}

.container {
    max-width: 900px;
    margin: 2rem auto;
    padding: 0 1rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.app-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem 1.5rem;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    text-decoration: none;
    color: inherit;
    display: block;
    cursor: pointer;
}

.app-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.12);
    text-decoration: none;
    color: inherit;
}

.app-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem auto;
    background: linear-gradient(135deg, #60a5fa, #2563eb);
    border-radius: 20%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
}

.app-name {
    margin-top: 0.5rem;
    color: #2563eb;
    font-size: 1.1rem;
    font-weight: 600;
}

.app-card:hover .app-name {
    color: #1e40af;
}

@media (max-width: 600px) {
    header h1 {
        font-size: 1.4rem;
    }
    .app-card {
        padding: 1.5rem 1rem;
    }
    .app-name {
        font-size: 1rem;
    }
}