/* Construtor de fluxo do chat */

.chat-flow-builder {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 16px;
    min-height: 420px;
}

@media (max-width: 991px) {
    .chat-flow-builder {
        grid-template-columns: 1fr;
    }
}

.chat-flow-sidebar {
    border: 1px solid #dee2e6;
    border-radius: 12px;
    background: #f8fafc;
    padding: 12px;
    max-height: 520px;
    overflow-y: auto;
}

.chat-flow-sidebar-title {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #64748b;
    margin-bottom: 10px;
}

.chat-flow-node-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.chat-flow-node-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px;
    border: 2px solid transparent;
    border-radius: 10px;
    background: #fff;
    cursor: pointer;
    transition: border-color 0.15s, box-shadow 0.15s;
    text-align: left;
    width: 100%;
}

.chat-flow-node-item:hover {
    border-color: #cbd5e1;
}

.chat-flow-node-item.is-active {
    border-color: var(--primary, #6366f1);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.chat-flow-node-item.is-start {
    border-left: 3px solid #22c55e;
}

.chat-flow-node-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
    background: #e0e7ff;
    color: #4338ca;
}

.chat-flow-node-icon.type-buttons { background: #fef3c7; color: #b45309; }
.chat-flow-node-icon.type-image { background: #dcfce7; color: #15803d; }
.chat-flow-node-icon.type-video { background: #fce7f3; color: #be185d; }

.chat-flow-node-meta {
    flex: 1;
    min-width: 0;
}

.chat-flow-node-label {
    font-size: 13px;
    font-weight: 600;
    color: #1e293b;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-flow-node-preview {
    font-size: 11px;
    color: #64748b;
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-flow-node-badge {
    font-size: 10px;
    font-weight: 600;
    color: #16a34a;
    background: #dcfce7;
    padding: 2px 6px;
    border-radius: 4px;
    margin-top: 4px;
    display: inline-block;
}

.chat-flow-editor {
    border: 1px solid #dee2e6;
    border-radius: 12px;
    background: #fff;
    padding: 16px;
}

.chat-flow-editor-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    color: #94a3b8;
    text-align: center;
    gap: 8px;
}

.chat-flow-editor-empty i {
    font-size: 2.5rem;
}

.chat-flow-canvas {
    position: relative;
    padding-left: 24px;
    margin-top: 16px;
}

.chat-flow-canvas::before {
    content: '';
    position: absolute;
    left: 11px;
    top: 20px;
    bottom: 20px;
    width: 2px;
    background: linear-gradient(to bottom, #6366f1, #a5b4fc);
    border-radius: 2px;
}

.chat-flow-step {
    position: relative;
    margin-bottom: 16px;
    padding-left: 20px;
}

.chat-flow-step::before {
    content: '';
    position: absolute;
    left: -17px;
    top: 18px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #6366f1;
    border: 2px solid #fff;
    box-shadow: 0 0 0 2px #6366f1;
}

.chat-flow-step-card {
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 12px 14px;
    background: #fafafa;
}

.chat-flow-step-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.chat-flow-step-type {
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #6366f1;
}

.chat-flow-step-content {
    font-size: 13px;
    color: #334155;
    line-height: 1.4;
}

.chat-flow-arrows {
    margin-top: 8px;
    padding-left: 8px;
    border-left: 2px dashed #cbd5e1;
}

.chat-flow-arrow {
    font-size: 11px;
    color: #64748b;
    padding: 4px 0;
    display: flex;
    align-items: center;
    gap: 6px;
}

.chat-flow-arrow i {
    color: #6366f1;
}

.chat-flow-buttons-editor {
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 10px;
    margin-top: 10px;
    background: #f8fafc;
}

.chat-flow-btn-row {
    display: grid;
    grid-template-columns: 1fr 140px 1fr 1fr auto;
    gap: 8px;
    align-items: start;
    margin-bottom: 8px;
}

@media (max-width: 768px) {
    .chat-flow-btn-row {
        grid-template-columns: 1fr;
    }
}

.chat-flow-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.chat-flow-media-preview {
    max-width: 120px;
    max-height: 80px;
    border-radius: 8px;
    object-fit: cover;
    margin-bottom: 8px;
    display: block;
}

.chat-flow-media-preview-video {
    max-width: 160px;
    border-radius: 8px;
    display: block;
    margin-bottom: 8px;
}