body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: #f5f5f7;
    color: #1d1d1f;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    overflow: hidden;
}

.container {
    text-align: center;
    background-color: #ffffff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    max-width: 900px;
    width: 90%;
    animation: fadeIn 1s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

h1 {
    color: #1d1d1f;
    margin-bottom: 30px;
    font-size: 32px;
    font-weight: 600;
    animation: slideIn 1s ease-out;
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

.model-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.model-item {
    background-color: #f0f0f5;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.model-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

h2 {
    margin: 0 0 10px;
    color: #0070c9;
    font-size: 20px;
    font-weight: 500;
}

p {
    margin: 0 0 15px;
    color: #555;
    font-size: 16px;
}

button {
    background-color: #0070c9;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #005bb5;
}