:root {
    --primary-color: #4CAF50;
    --secondary-color: #2196F3;
    --danger-color: #f44336;
    --background-color: #f5f5f5;
    --text-color: #333;
    --border-color: #ddd;
}

/* 基本樣式 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 100%;
    padding: 15px;
    margin: 0 auto;
}

h1 {
    text-align: center;
    margin: 20px 0;
    font-size: 24px;
    color: var(--text-color);
}

/* 按鈕樣式 */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

/* 功能按鈕區 */
.action-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.add-button, .currency-button {
    flex: 1;
    padding: 12px 20px;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: all 0.3s ease;
}

.add-button {
    background-color: var(--primary-color);
}

.currency-button {
    background-color: var(--secondary-color);
}

/* 篩選區域 */
.filter-section {
    margin-bottom: 20px;
}

.filter-section select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
}

/* 清單項目 */
.souvenir-item {
    background: white;
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 15px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.2s ease;
}

.souvenir-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.status-icon {
    float: right;
    cursor: pointer;
    padding: 5px;
}

.status-icon img {
    width: 24px;
    height: 24px;
    transition: transform 0.2s ease;
}

.status-icon:hover img {
    transform: scale(1.1);
}

.item-info h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--text-color);
}

.item-info p {
    margin-bottom: 5px;
    font-size: 14px;
}

.country {
    color: #666;
    font-style: italic;
}

.price {
    font-weight: bold;
    color: var(--primary-color);
}

.item-image {
    margin: 10px 0;
    text-align: center;
}

.item-image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* 表單樣式 */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: var(--text-color);
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(33, 150, 243, 0.1);
}

.form-group textarea {
    height: 100px;
    resize: vertical;
}

/* 價格輸入組 */
.price-input-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

.price-input-group input[type="number"] {
    flex: 2;
    min-width: 120px;
}

.price-input-group select {
    flex: 1;
    min-width: 100px;
}

/* 按鈕區域 */
.item-actions {
    margin-top: 15px;
    display: flex;
    gap: 10px;
}

.item-actions button {
    flex: 1;
    padding: 8px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    color: white;
    font-size: 14px;
    transition: all 0.3s ease;
}

.item-actions button:first-child {
    background-color: var(--secondary-color);
}

.item-actions button.delete {
    background-color: var(--danger-color);
}

/* 彈窗樣式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background-color: white;
    margin: 20px;
    padding: 20px;
    border-radius: 12px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.close {
    float: right;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
    color: #666;
}

.close:hover {
    color: var(--danger-color);
}

/* 響應式設計 */
@media (min-width: 768px) {
    .container {
        max-width: 768px;
    }
    
    .modal-content {
        margin: 40px auto;
        max-width: 600px;
    }
    
    .souvenir-item {
        display: grid;
        grid-template-columns: auto 1fr auto;
        gap: 15px;
        align-items: center;
    }
    
    .status-icon {
        float: none;
    }
    
    .item-actions {
        margin-top: 0;
    }
}

/* 檔案上傳美化 */
input[type="file"] {
    padding: 10px;
    border: 2px dashed var(--border-color);
    border-radius: 6px;
    background-color: #f8f9fa;
    cursor: pointer;
    width: 100%;
}

input[type="file"]:hover {
    border-color: var(--secondary-color);
}

/* 沒有資料時的提示 */
.no-data {
    text-align: center;
    padding: 30px;
    background: white;
    border-radius: 8px;
    color: #666;
    font-style: italic;
}

/* 新增 Modal 表單按鈕樣式 */
.modal .form-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 20px;
}

.modal .form-actions button {
    font-size: 18px;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.modal .form-actions button[type="submit"] {
    background-color: var(--primary-color);
    color: white;
}

.modal .form-actions button.cancel {
    background-color: var(--danger-color);
    color: white;
}

.modal .form-actions button:hover {
    transform: scale(1.05);
}