body {
    font-family: 'Roboto', 'Arial', 'Helvetica', 'Hiragino Sans', 'Meiryo', sans-serif;
    padding: 20px;
    background-color: #fafaf8;
    margin:0;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
}

.content-wrapper {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

main {
    flex: 1;
}

.blog-list {
    list-style: none;
    padding: 0;
    margin: 15px 0;
}

.sidebar {
    width: 350px;
    background-color: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    align-self: flex-start;
}

.sidebar h3 {
    margin-top: 0;
    color: #333;
    border-bottom: 1px solid #f0f0f0;
    margin-bottom: 15px;
}

.sidebar-links {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.sidebar-links li {
    flex-basis: calc(50% - 5px);
}

.sidebar a {
    display: block;
    text-decoration: none;
    color: #4a4a4a;
    padding: 8px 12px;
    border-radius: 5px;
    transition: all 0.3s ease;
    font-size: 0.9em;
    text-align: center;
    background-color: #f5f5f5;
}

.sidebar a:hover {
    background-color: #e0e0e0;
    color: #000;
}

h1 {
    text-align: left;
    font-size: 1.5em;
    margin-bottom: 10px;
    margin-top: 0;
    color: #333;
}

h1 a {
    text-decoration: none;
    color: inherit;
}


h2 {
    text-align: left;
    font-size: 1.2em;
    margin-top: 20px;
    margin-bottom: 0;
    color: #333;
}

h3 {
    font-size: 1.1em;
    color: #333;
}

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    background-color: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    margin-bottom: 40px;
    color: #333;
}

input, select, button {
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 5px;
    color: #333;
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type=number] {
    -moz-appearance: textfield;
}

button {
    cursor: pointer;
    transition: background-color 0.3s; 
    background-color: #f1f1f1; 
    margin-top: 10px;
    outline: none; 
    -webkit-appearance: none;
    -moz-appearance: none; 
    appearance: none;
}

button:hover {
    background-color: #e0e0e0; 
}

input:focus, select:focus {
    outline: none;
    border-color: #6495ed;
    box-shadow: 0 0 5px rgba(100, 149, 237, 0.5);
}

.radio-group {
    display: flex;
    gap: 20px;
    align-items: center;
}

.radio-group label {
    display: flex;
    align-items: center;
}

.radio-group input[type="radio"] {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid #ccc;
    border-radius: 50%;
    outline: none;
    margin-right: 8px;
    vertical-align: middle;
    position: relative;
}

.radio-group input[type="radio"]:checked {
    border-color: #4a90e2;
}

.radio-group input[type="radio"]:checked::after {
    content: '';
    width: 10px;
    height: 10px;
    background-color: #4a90e2;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.radio-group input[type="radio"]:focus {
    box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.3);
}

.radio-group label:hover input[type="radio"] {
    border-color: #4a90e2;
}

#tax-rate {
    transition: opacity 0.3s ease;
}

#result {
    margin-top: 0px;
    font-weight: bold;
    font-size: 1.2em;
    color: #ff0000;
    text-align: left;
}

#instructions {
    color: #333;
    line-height: 1.6;
}

#instructions ul {
    margin-top: 10px;
}

#instructions ul li a {
    color: #004080;
    text-decoration: none;
}

ul, ol {
    margin: 0 0 20px 20px;
    padding: 0;
}

ul li, ol li {
    margin-bottom: 10px;
}

#discount-table-container {
    margin-top: 20px;
    background-color: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

#discount-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    table-layout: fixed;
}

#discount-table th, #discount-table td {
    border: 1px solid #ddd;
    padding: 8px;
    text-align: right;
    width: 50%;
}

#discount-table th {
    background-color: #f2f2f2;
    font-weight: bold;
}

#discount-table tr:nth-child(even) {
    background-color: #f9f9f9;
}

#discount-table tr:hover {
    background-color: #e6f2ff;
}

footer {
    margin-top: 30px;
    text-align: center;
    font-size: 14px;
    color: #888;
}

footer p {
    margin: 0;
}

footer p a {
    color: #888;
    text-decoration: none;
    padding: 10px; 
}

@media screen and (max-width: 1000px) {

.container {
        padding: 0; 
    }

.content-wrapper {
        flex-direction: column;
    }

main, .sidebar {
        width: 100%; 
    }

form, .sidebar {
        padding: 20px;
        box-sizing: border-box;
    }

    .sidebar-links {
        flex-direction: column;
    }

    .sidebar-links li {
        flex-basis: 100%;
    }

    h1 {
        font-size: 1.3em;
    }

    h2 {
        font-size: 1.2em;
    }

    h3 {
        font-size: 1.1em;
    }

}

#discount-table-container {
    margin-top: 40px;
}

#discount-table {
        font-size: 14px;
    }

    #discount-table th, #discount-table td {
        padding: 6px;
    }


@media (hover: none) { 
    button:active {
        background-color: #d0d0d0;
    }

    button:not(:active) {
        background-color: #f1f1f1;
    }
}