.tool-title-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--primary-light);
}

.tool-title-wrapper i {
    font-size: 2rem;
    color: var(--primary-color);
}

.tool-title-wrapper .tool-title {
    margin-bottom: 0;
    border-bottom: none;
}

.config-section {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.config-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.regex-input-wrapper {
    display: flex;
    align-items: center;
    gap: 4px;
}

.regex-delimiter {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-muted);
    font-family: 'Consolas', 'Monaco', monospace;
}

.regex-input {
    flex: 1;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
}

.flags-input {
    width: 60px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    text-align: center;
}

.flags-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.flag-btn {
    padding: 8px 12px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: 'Consolas', 'Monaco', monospace;
}

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

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

.regex-panels {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.regex-panel {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.panel-header h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.match-count {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-color);
    background: var(--primary-light);
    padding: 4px 10px;
    border-radius: 20px;
}

.test-input,
.match-result {
    min-height: 250px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    line-height: 1.6;
}

.match-result {
    padding: 12px 14px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 400px;
    margin: 0;
}

.match-highlight {
    background: #fff3cd;
    padding: 1px 2px;
    border-radius: 3px;
    color: var(--text-primary);
}

.match-details {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.match-details h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.match-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 300px;
    overflow: auto;
}

.match-item {
    padding: 12px;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 13px;
}

.match-item-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

.match-index {
    font-weight: 600;
    color: var(--primary-color);
}

.match-position {
    color: var(--text-muted);
    font-size: 12px;
}

.match-item-content {
    color: var(--text-secondary);
    word-break: break-all;
    margin-bottom: 8px;
}

.match-groups {
    padding-top: 8px;
    border-top: 1px dashed var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.match-group {
    color: var(--text-secondary);
    font-size: 12px;
    word-break: break-all;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

@media (max-width: 768px) {
    .config-section {
        grid-template-columns: 1fr;
    }

    .regex-panels {
        grid-template-columns: 1fr;
    }

    .test-input,
    .match-result {
        min-height: 180px;
    }
}