body {
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f9f9f9;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header {
    text-align: center;
    margin-bottom: 40px;
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
}

header h1 {
    font-size: 24px;
    color: #009688; /* Coconala-ish green color */
    margin-bottom: 10px;
}

header p {
    color: #666;
}

h2 {
    font-size: 20px;
    border-left: 5px solid #009688;
    padding-left: 10px;
    margin-bottom: 20px;
}

.product-info {
    margin-bottom: 40px;
}

.product-info ul {
    list-style-type: none;
    padding: 0;
    background: #f0f0f0;
    padding: 20px;
    border-radius: 5px;
}

.product-info li {
    margin-bottom: 10px;
}

.simulator {
    background: #fff;
}

.form-group {
    margin-bottom: 25px;
}

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

.price-display {
    font-size: 18px;
    font-weight: bold;
}

.options .option-item {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    transition: opacity 0.3s;
}

.options .option-item.disabled {
    opacity: 0.5;
    pointer-events: none;
}

.options input[type="checkbox"] {
    margin-right: 10px;
    transform: scale(1.2);
    cursor: pointer;
}

.options label {
    font-weight: normal;
    margin-bottom: 0;
    cursor: pointer;
    flex: 1;
}

.options label span {
    color: #e91e63;
    font-weight: bold;
    margin-left: 5px;
}

.note {
    font-size: 0.85em;
    color: #666;
    margin-top: 5px;
    margin-bottom: 10px;
}

.size-inputs {
    display: flex;
    align-items: center;
    gap: 10px;
}

.size-inputs span {
    font-weight: bold;
}

input[type="number"] {
    width: 100px;
    padding: 8px;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.image-preview-container {
    margin-top: 10px;
    border: 1px dashed #ccc;
    padding: 10px;
    text-align: center;
    border-radius: 4px;
    background: #fafafa;
}

.image-preview-container img {
    max-width: 100%;
    max-height: 300px;
    height: auto;
    box-shadow: 0 0 5px rgba(0,0,0,0.1);
}

.info-message {
    margin-top: 10px;
    padding: 10px;
    border-radius: 4px;
    font-size: 0.9em;
}

.info-message.success {
    background-color: #e8f5e9;
    color: #2e7d32;
    border: 1px solid #c8e6c9;
}

.info-message.warning {
    background-color: #fff3e0;
    color: #ef6c00;
    border: 1px solid #ffe0b2;
}

.info-message.error {
    background-color: #ffebee;
    color: #c62828;
    border: 1px solid #ffcdd2;
    font-weight: bold;
}

.result {
    margin-top: 40px;
    background: #e0f2f1;
    padding: 30px;
    border-radius: 8px;
}

.result h3 {
    margin-top: 0;
    color: #009688;
    text-align: center;
    margin-bottom: 20px;
}

.estimate-breakdown {
    background: #fff;
    padding: 20px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-family: monospace; /* For better alignment feel */
}

.breakdown-section {
    margin-bottom: 20px;
}

.breakdown-section h4 {
    margin: 0 0 10px 0;
    font-size: 16px;
    border-bottom: 1px solid #ddd;
    padding-bottom: 5px;
}

.spec-row {
    margin-bottom: 5px;
}

.spec-row .label {
    display: inline-block;
    width: 80px; /* Align colons */
}

.price-table {
    width: 100%;
    border-collapse: collapse;
}

.price-table td {
    padding: 5px 0;
}

.price-table .price {
    text-align: right;
}

.price-table .separator hr {
    border: 0;
    border-top: 1px dashed #bbb;
    margin: 5px 0;
}

.total-area {
    text-align: right;
    font-size: 24px;
    font-weight: bold;
    color: #333;
    border-top: 2px solid #009688;
    padding-top: 10px;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 20px;
}

.total-price {
    font-size: 36px;
    color: #e91e63;
}

.formal-request {
    margin-top: 40px;
    border-top: 2px solid #eee;
    padding-top: 40px;
}

.formal-request .disclaimer {
    background-color: #fff3e0;
    padding: 15px;
    border-radius: 4px;
    border-left: 5px solid #ff9800;
    margin-bottom: 20px;
    font-size: 0.95em;
}

.request-template-container {
    position: relative;
}

#request-template {
    width: 100%;
    box-sizing: border-box;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: #f5f5f5;
    font-family: monospace;
    font-size: 0.9em;
    resize: vertical;
    white-space: pre-wrap;
    overflow-y: auto;
}

.action-btn {
    display: block;
    width: 100%;
    padding: 12px;
    background-color: #009688;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    margin-top: 10px;
    transition: background-color 0.3s;
}

.action-btn:hover {
    background-color: #00796b;
}

.action-btn:active {
    background-color: #004d40;
}