body {
    font-family: sans-serif;
    margin: 0;
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
}

.container {
    width: 95%;
    max-width: 1600px;
    margin: 20px auto;
    background: #fff;
    padding: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.two-column-layout {
    display: flex;
    gap: 30px;
    margin-top: 20px;
}

.column {
    flex: 1;
    min-width: 0; /* Prevents flex items from overflowing */
}

.left-column {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.right-column {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

h1 {
    color: #333;
    text-align: center;
    margin-bottom: 20px;
}

h2 {
    color: #333;
    margin-bottom: 20px;
    font-size: 1.5em;
}

form div {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

input[type="text"],
select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box; /* Important to keep padding and border within the width */
}

select[multiple] {
    height: auto;
    min-height: 100px;
}

button[type="submit"] {
    display: block;
    width: 100%;
    padding: 10px;
    background-color: #5cb85c;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

button[type="submit"]:hover {
    background-color: #4cae4c;
}

hr {
    margin-top: 30px;
    margin-bottom: 30px;
    border: 0;
    border-top: 1px solid #eee;
}

#results-container {
    margin-top: 0;
    padding: 15px;
    background-color: #fff;
    border-radius: 4px;
    height: calc(100% - 60px);
    overflow-y: auto;
}

#results-container h3 {
    margin-top: 0;
    color: #333;
}

#results-container p {
    margin-bottom: 10px;
}

#results-container ul {
    list-style-type: none;
    padding: 0;
}

#results-container ul li {
    background: #f9f9f9;
    margin-bottom: 8px;
    padding: 10px;
    border-radius: 4px;
    border: 1px solid #eee;
}

.exercise-block {
    margin-bottom: 20px;
    padding: 15px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background-color: #fff;
}

.exercise-block h4 {
    margin-top: 0;
    color: #555;
}

.exercise {
    margin-bottom: 10px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #f9f9f9;
}

.exercise p {
    margin: 5px 0;
}

.exercise video {
    max-width: 100%;
    height: auto;
    margin-top: 10px;
}

@media (max-width: 768px) {
    .two-column-layout {
        flex-direction: column;
    }
    
    .column {
        width: 100%;
    }
    
    .container {
        width: 90%;
        padding: 15px;
    }
}