body {
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
    color: #333;
    margin: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 24px;
    color: #007bff;
}


.selection-instructions {
    margin-bottom: 20px;
    font-size: 16px;
    color: #555;
}

.form-group {
    margin-bottom: 20px;
}

.selection-description {
    font-size: 14px;
    color: #777;
    margin-bottom: 10px;
}

.type-selection, .skill-selection, .stiffness-selection {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.type-option, .skill-option, .stiffness-option {
    flex: 1 1 30%;
    margin: 5px;
    padding: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.3s, border-color 0.3s;
    background-color: #f8f9fa;
    width: 30%; /* Set a fixed width for all selection boxes */
    box-sizing: border-box; /* Ensure padding and border are included in the width */
}

.type-option.selected, .skill-option.selected, .stiffness-option.selected {
    background-color: #007bff;
    color: white;
    border-color: #007bff;
}

.type-option.selected .pro-tip, .skill-option.selected .pro-tip, .stiffness-option.selected .pro-tip {
    color: white;
}

.type-option i, .skill-option i, .stiffness-option i {
    display: block;
    margin-bottom: 10px;
    font-size: 28px;
}

.type-option span, .skill-option span, .stiffness-option span {
    display: block;
    font-size: 18px;
    font-weight: bold;
}

.pro-tip {
    font-size: 12px;
    color: #555;
    margin-top: 10px;
}

/* Results section styling */
#result {
    margin-top: 30px;
}

.card {
    border: 1px solid #ccc;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.card-body {
    padding: 20px;
}

.card-title {
    font-size: 20px;
    margin-bottom: 10px;
    color: #4D7585;
}

.card-text {
    font-size: 14px;
    color: #555;
}

@media (max-width: 768px) {
    .type-selection .type-option,
    .skill-selection .skill-option,
    .stiffness-selection .stiffness-option {
        margin-bottom: 10px;
        flex: 1 1 100%;
        width: 100%; /* Ensure full width on smaller screens */
    }

    .type-selection,
    .skill-selection,
    .stiffness-selection {
        flex-direction: column;
    }

    .input-group {
        flex-direction: column;
    }

    .input-group-append {
        margin-top: 10px;
    }

    .form-group {
        margin-bottom: 20px;
    }

    .form-group label {
        display: block;
        margin-bottom: 10px;
    }

    .form-group .input-group {
        display: flex;
        flex-direction: column;
    }

    .form-group .input-group-append {
        margin-top: 10px;
    }

    .form-group.text-center {
        text-align: center;
    }

    .form-group.text-center button {
        width: 100%;
        margin-bottom: 10px;
    }

    .form-group.text-center button:last-child {
        margin-bottom: 0;
    }
}