/* 正則表達式測試器專用樣式 */

/* 正則表達式輸入區 */
.regex-input-section {
    margin-bottom: 2rem;
}

.regex-input-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding: 1rem;
    background: var(--light-gray);
    border-radius: 10px;
    border: 2px solid var(--border-color);
    transition: border-color 0.3s ease;
}

.regex-input-container:focus-within {
    border-color: var(--primary-color);
}

.regex-delimiter {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--secondary-color);
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

.regex-input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 1.1rem;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    color: var(--text-color);
    outline: none;
    padding: 0.5rem;
    min-width: 200px;
}

.regex-input::placeholder {
    color: var(--text-color);
    opacity: 0.6;
}

/* 修飾符容器 */
.flags-container {
    display: flex;
    gap: 0.5rem;
    margin-left: 0.5rem;
}

.flag-checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.flag-checkbox input[type="checkbox"] {
    display: none;
}

.flag-label {
    padding: 0.4rem 0.6rem;
    background: var(--card-bg, white);
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-weight: bold;
    font-size: 0.9rem;
    color: var(--text-color);
    transition: all 0.3s ease;
    min-width: 32px;
    text-align: center;
}

.flag-checkbox input[type="checkbox"]:checked + .flag-label {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.flag-checkbox:hover .flag-label {
    border-color: var(--primary-color);
}

/* 測試文字區 */
.test-text-section {
    margin-bottom: 2rem;
}

.test-textarea {
    width: 100%;
    margin-top: 0.75rem;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 1rem;
    line-height: 1.6;
    resize: vertical;
    background: var(--card-bg, white);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 1rem;
    color: var(--text-color);
    transition: border-color 0.3s ease;
}

.test-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* 替換功能區 */
.replace-section {
    margin-bottom: 2rem;
}

.replace-container {
    display: flex;
    gap: 1rem;
    margin-top: 0.75rem;
    align-items: center;
}

.replace-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--card-bg, white);
    color: var(--text-color);
    transition: border-color 0.3s ease;
}

.replace-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* 結果顯示區 */
.results-section {
    margin-bottom: 2rem;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.match-stats {
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.8;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

/* 高亮顯示容器 */
.highlighted-text-container,
.match-details-container,
.replace-result-container {
    margin-bottom: 1.5rem;
}

.highlighted-text-container h4,
.match-details-container h4,
.replace-result-container h4 {
    margin-bottom: 0.75rem;
    color: var(--secondary-color);
    font-size: 1.1rem;
}

.highlighted-text {
    background: var(--card-bg, white);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 1rem;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 1rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--text-color);
    min-height: 100px;
    max-height: 300px;
    overflow-y: auto;
}

/* 匹配高亮樣式 */
.match-highlight {
    background: rgba(247, 147, 26, 0.3);
    color: #d97706;
    font-weight: bold;
    border-radius: 3px;
    padding: 1px 2px;
    border: 1px solid rgba(247, 147, 26, 0.5);
}

.group-highlight-1 { background: rgba(99, 126, 234, 0.3); color: #4f46e5; }
.group-highlight-2 { background: rgba(236, 72, 153, 0.3); color: #be185d; }
.group-highlight-3 { background: rgba(34, 197, 94, 0.3); color: #059669; }
.group-highlight-4 { background: rgba(245, 158, 11, 0.3); color: #d97706; }

/* 匹配詳情 */
.match-details {
    background: var(--card-bg, white);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 1rem;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text-color);
    max-height: 200px;
    overflow-y: auto;
}

.match-item {
    margin-bottom: 1rem;
    padding: 0.75rem;
    background: var(--light-gray);
    border-radius: 6px;
    border-left: 4px solid var(--primary-color);
}

.match-item:last-child {
    margin-bottom: 0;
}

.match-index {
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.match-text {
    background: rgba(247, 147, 26, 0.1);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    margin: 0.25rem 0;
    word-break: break-all;
}

.match-groups {
    margin-top: 0.5rem;
}

.group-item {
    display: flex;
    gap: 0.5rem;
    margin: 0.25rem 0;
    align-items: center;
}

.group-number {
    font-weight: bold;
    color: var(--secondary-color);
    min-width: 30px;
}

.group-text {
    background: rgba(99, 126, 234, 0.1);
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    font-size: 0.85rem;
}

/* 替換結果 */
.replace-result {
    background: var(--card-bg, white);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 1rem;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 1rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--text-color);
    min-height: 100px;
    max-height: 200px;
    overflow-y: auto;
}

/* 錯誤訊息 */
.error-message {
    background: #fef2f2;
    color: #dc2626;
    border: 1px solid #fecaca;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

/* 常用範例區 */
.examples-section {
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.examples-section h3 {
    margin: 0 0 1rem 0;
    color: var(--text-color);
    font-size: 1.1rem;
}

.examples-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.example-btn {
    text-align: left;
    padding: 1rem;
    background: var(--card-bg, white);
    color: var(--text-color);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
}

.example-btn:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.example-icon {
    font-size: 1.2rem;
}

.example-name {
    font-weight: 500;
}

/* 功能特色區塊 */
.features-section {
    margin-bottom: 3rem;
}

.features-section h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-color);
    font-size: 2rem;
}

/* 正則表達式參考 */
.regex-reference {
    display: grid;
    gap: 0.5rem;
    margin: 1rem 0;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
}

.ref-item {
    display: grid;
    grid-template-columns: 60px 1fr;
    align-items: center;
    padding: 0.5rem;
    background: var(--light-gray);
    border-radius: 6px;
    gap: 1rem;
}

.ref-pattern {
    font-weight: bold;
    color: var(--primary-color);
    background: var(--card-bg, white);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.ref-desc {
    color: var(--text-color);
    font-size: 0.95rem;
}

/* 響應式設計 */
@media (max-width: 768px) {
    .regex-input-container {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .flags-container {
        margin-left: 0;
        justify-content: center;
    }
    
    .replace-container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .results-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .examples-grid {
        grid-template-columns: 1fr;
    }
    
    .ref-item {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .regex-input-container {
        padding: 0.75rem;
    }
    
    .flag-label {
        padding: 0.3rem 0.5rem;
        font-size: 0.8rem;
    }
    
    .test-textarea {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .highlighted-text,
    .match-details,
    .replace-result {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
    
    .examples-section {
        padding: 1rem;
    }
    
    .example-btn {
        padding: 0.75rem;
        font-size: 0.9rem;
    }
}