body {
*, *::before, *::after { box-sizing: border-box; }
    font-family: 'system-ui', Georgia, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #2c3e50;
    color: #ecf0f1;
}
header, footer {
    width: 100%;
    text-align: center;
    padding: 1rem;
}
main {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 90%;
    max-width: 1400px;
}
.movement-1, .movement-2 {
    display: grid;
    grid-template-columns: minmax(28rem, 42%) auto;
    gap: 2rem;
    width: 100%;
    margin-bottom: 2rem;
}
.movement-2.hidden {
    display: none;
}
.slider-container {
    text-align: center;
    margin-bottom: 2rem;
}
#slider {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    background-color: #ecf0f1;
    height: 5px;
    border-radius: 5px;
    outline: none;
    opacity: 0.7;
    transition: opacity 0.2s;
}
#slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 15px;
    height: 15px;
    background-color: #3498db;
    border-radius: 50%;
    cursor: pointer;
}
#slider::-moz-range-thumb {
    width: 15px;
    height: 15px;
    background-color: #3498db;
    border-radius: 50%;
    cursor: pointer;
}
.lens {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 10px;
    height: 10px;
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}
.text-container {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: left;
}
.image-container {
    position: relative;
}
img {
    max-width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}
@media (max-width: 768px) {
    .movement-1, .movement-2 {
        grid-template-columns: 1fr;
    }
}
@media (max-width: 390px) {
    main {
        flex-direction: column;
    }
    .slider-container {
        width: 80%;
    }
}