.workflow-tabs {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid rgba(102, 126, 234, 0.2);
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 1rem 1.5rem;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: rgba(102, 126, 234, 0.1);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

.workflow-container {
    max-width: 600px;
    margin: 0 auto;
}

.workflow-node {
    background: linear-gradient(135deg, #2a2f45 0%, #1f2333 100%);
    border: 2px solid rgba(102, 126, 234, 0.3);
    border-radius: 16px;
    padding: 1.5rem;
    margin: 0 auto 0.5rem auto;
    transition: all 0.3s ease;
    position: relative;
}

.workflow-node.clickable {
    cursor: pointer;
}

.workflow-node.clickable:hover {
    border-color: var(--primary-color);
    box-shadow: 0 0 15px rgba(102, 126, 234, 0.3);
    transform: translateY(-2px);
}

.node-status {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-align: center;
}

.workflow-node.active {
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
    transform: scale(1.02);
}

.workflow-node.completed {
    border-color: var(--success-color);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, #1f2333 100%);
}

.workflow-node.failed {
    border-color: var(--danger-color);
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, #1f2333 100%);
}

.workflow-node.completed::after {
    content: '\2713';
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 1.5rem;
    color: var(--success-color);
    font-weight: bold;
}

.node-icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.node-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.node-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.node-db {
    font-size: 0.8rem;
    color: #a78bfa;
    background: rgba(167, 139, 250, 0.1);
    padding: 0.5rem;
    border-radius: 6px;
    line-height: 1.6;
}

/* Merge Nodes */
.workflow-node-merge {
    background: linear-gradient(135deg, rgba(234, 179, 8, 0.1) 0%, rgba(31, 35, 51, 0.5) 100%);
    border: 2px dashed rgba(234, 179, 8, 0.4);
    border-radius: 12px;
    padding: 1.25rem;
    margin: 0 auto 0.5rem auto;
    text-align: left;
    max-width: 550px;
}

.merge-icon {
    font-size: 1.5rem;
    color: #eab308;
    margin-bottom: 0.5rem;
    text-align: center;
}

.merge-title {
    font-size: 1rem;
    font-weight: 600;
    color: #fbbf24;
    margin-bottom: 0.75rem;
    text-align: center;
}

.merge-desc {
    font-size: 0.8rem;
    color: rgba(251, 191, 36, 0.8);
    line-height: 1.6;
    text-align: left;
}

.merge-desc strong {
    color: #fbbf24;
    display: block;
    margin-bottom: 0.25rem;
}

.workflow-arrow {
    text-align: center;
    color: rgba(102, 126, 234, 0.5);
    font-size: 1.5rem;
    margin: 0.25rem 0;
    transition: color 0.3s ease;
}

.workflow-arrow.active {
    color: var(--primary-color);
    animation: pulse 1s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.execution-details {
    background: rgba(102, 126, 234, 0.05);
    border-radius: 12px;
    padding: 1.5rem;
}

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

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.detail-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.detail-value {
    font-size: 1rem;
    color: var(--text-primary);
    font-weight: 500;
}

.execution-item {
    background: rgba(102, 126, 234, 0.08);
    border-left: 4px solid var(--primary-color);
    border: 1px solid rgba(102, 126, 234, 0.2);
    padding: 1rem;
    margin-bottom: 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.execution-item:hover {
    background: rgba(102, 126, 234, 0.2);
    border-color: var(--primary-color);
    transform: translateX(8px) scale(1.02);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.execution-item.running {
    border-left-color: #3b82f6;
    animation: pulse-border 2s ease-in-out infinite;
}

.execution-item.succeeded {
    border-left-color: var(--success-color);
}

.execution-item.failed {
    border-left-color: var(--danger-color);
}

@keyframes pulse-border {
    0%, 100% { box-shadow: 0 0 0 rgba(59, 130, 246, 0); }
    50% { box-shadow: 0 0 15px rgba(59, 130, 246, 0.5); }
}