/* ===================================
テキスト置換ツール専用スタイル
=================================== */

/* ===================================
置換設定セクション
=================================== */
.replace-settings {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-bottom: 30px;
}

/* コントロールグループ（島スタイル） */
.control-group {
    background: var(--gray-100);
    border-radius: 8px;
    padding: 20px;
}

.control-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.control-title {
    font-weight: bold;
    color: var(--text-primary);
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
}

.control-title i {
    color: var(--text-primary);
}

/* ===================================
ルール追加ボタン
=================================== */
.add-rule-btn {
    background: var(--info);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.add-rule-btn:hover {
    background: var(--info-hover);
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(22, 160, 133, 0.3);
}

/* ===================================
プリセットボタン
=================================== */
.preset-buttons {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.preset-btn {
    padding: 6px 14px;
    background: var(--gray-500);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
    transition: all 0.3s;
}

.preset-btn:hover {
    background: var(--gray-700);
    transform: translateY(-1px);
}

/* ===================================
置換ルールコンテナ
=================================== */
.rules-container {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

/* ===================================
個別の置換ルール
=================================== */
.replace-rule {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: white;
    border-radius: 6px;
    border: 1px solid var(--gray-300);
    position: relative;
    animation: slideIn 0.3s ease-out;
    transition: all 0.3s;
}

.replace-rule:hover {
    border-color: var(--accent);
    box-shadow: 0 2px 6px rgba(243, 156, 18, 0.1);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.rule-checkbox {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--info);
    flex-shrink: 0;
}

.rule-input {
    flex: 1;
    min-width: 0;
    padding: 8px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    font-size: 14px;
    transition: all 0.3s;
}

.rule-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(243, 156, 18, 0.25);
}

.rule-input::placeholder {
    color: #999;
}

.rule-arrow {
    color: var(--text-secondary);
    font-weight: bold;
    text-align: center;
    font-size: 16px;
    flex-shrink: 0;
}

.delete-rule-btn {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
    border-radius: 4px;
    padding: 6px 10px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.delete-rule-btn:hover {
    background: var(--danger);
    color: white;
    border-color: var(--danger);
    transform: scale(1.05);
}

/* ===================================
オプションコントロール
=================================== */
.option-controls {
    display: flex;
    gap: 20px;
    justify-content: flex-end;
    margin-top: 5px;
}

.option-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
    transition: color 0.3s;
}

.option-checkbox:hover {
    color: var(--text-primary);
}

.option-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--info);
}

.option-checkbox span {
    user-select: none;
}

/* ===================================
テキストエリアコンテナ
=================================== */
.text-areas-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

.textarea-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.textarea-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.textarea-label i {
    color: var(--text-secondary);
}

.textarea {
    height: 400px;
    padding: 15px;
    border: 2px solid var(--gray-300);
    border-radius: 8px;
    font-size: 14px;
    font-family: 'Courier New', monospace;
    resize: vertical;
    transition: all 0.3s;
    width: 100%;
}

.textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(243, 156, 18, 0.1);
}

.textarea-readonly {
    background: var(--gray-100);
    cursor: default;
}

/* ===================================
アクションバー
=================================== */
.action-bar {
    background: var(--gray-100);
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 30px;
}

.action-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.action-stats {
    display: flex;
    gap: 30px;
}

.action-stat {
    text-align: center;
}

.action-stat-value {
    font-size: 28px;
    font-weight: bold;
    color: var(--primary);
    display: block;
}

.action-stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-top: 2px;
}

.action-buttons {
    display: flex;
    gap: 10px;
}

.action-btn {
    padding: 12px 24px;
    border-radius: 6px;
    border: none;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

.copy-btn:hover:not(:disabled) {
    background: var(--success-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.3);
}

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

.download-btn:hover:not(:disabled) {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(243, 156, 18, 0.3);
}

.clear-btn {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
    padding: 10px 20px;
    font-size: 14px;
}

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

.action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--gray-500);
}

/* ===================================
レスポンシブ対応
=================================== */
@media (max-width: 767px) {
    .control-group {
        padding: 15px;
    }
    
    .text-areas-container {
        grid-template-columns: 1fr;
    }
    
    .textarea {
        height: 250px;
    }
    
    .replace-rule {
        flex-wrap: wrap;
        gap: 8px;
        padding: 10px;
    }
    
    .rule-checkbox {
        order: 1;
    }
    
    .rule-input:first-of-type {
        order: 2;
        width: calc(100% - 30px);
        margin-left: 26px;
    }
    
    .rule-arrow {
        order: 3;
        width: 100%;
        text-align: center;
        margin: 5px 0;
    }
    
    .rule-input:last-of-type {
        order: 4;
        width: calc(100% - 30px);
        margin-left: 26px;
    }
    
    .delete-rule-btn {
        order: 5;
        margin-left: auto;
        margin-top: 8px;
    }
    
    .option-controls {
        flex-direction: column;
        gap: 12px;
    }
    
    .action-bar-content {
        flex-direction: column;
        text-align: center;
    }
    
    .action-stats {
        width: 100%;
        justify-content: space-around;
    }
    
    .action-buttons {
        width: 100%;
        flex-direction: column;
    }
    
    .action-btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .control-group {
        padding: 15px;
    }
    
    .preset-buttons {
        flex-direction: column;
    }
    
    .preset-btn {
        width: 100%;
    }
    
    .action-stat-value {
        font-size: 24px;
    }
}