.mindmap-tab-content {
    min-height: 500px;
    position: relative;
}

.mindmap-wrapper {
    position: relative;
    width: 100%;
    height: 600px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

#mindmap-svg {
    width: 100%;
    height: 100%;
    cursor: grab;
}

#mindmap-svg:active {
    cursor: grabbing;
}

.mindmap-controls {
    position: absolute;
    top: 16px;
    right: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 10;
}

.mindmap-btn {
    width: 40px;
    height: 40px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.mindmap-btn:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.mindmap-btn:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.mindmap-btn svg {
    color: var(--color-text-secondary);
}

.mindmap-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 500px;
    gap: 16px;
}

.mindmap-loading .loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.mindmap-loading p {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 16px;
    font-weight: 500;
}

.mindmap-loading .loading-subtext {
    font-size: 14px;
    color: var(--color-text-muted);
    font-weight: 400;
}

.mindmap-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 500px;
    gap: 16px;
    padding: 32px;
    text-align: center;
}

.mindmap-error svg {
    color: var(--color-error);
    margin-bottom: 8px;
}

.mindmap-error h3 {
    margin: 0;
    color: var(--color-text-primary);
    font-size: 20px;
    font-weight: 600;
}

.mindmap-error p {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 14px;
    max-width: 400px;
}

.mindmap-error .retry-btn {
    margin-top: 16px;
    padding: 10px 24px;
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.mindmap-error .retry-btn:hover {
    background: var(--color-accent-hover);
}

.markmap-node {
    cursor: pointer;
}

.markmap-node-circle {
    transition: all 0.2s ease;
}

.markmap-node:hover .markmap-node-circle {
    stroke-width: 3;
    filter: brightness(1.1);
}

@media (max-width: 768px) {
    .mindmap-wrapper { height: 500px; }
    .mindmap-controls { top: 8px; right: 8px; gap: 6px; }
    .mindmap-btn { width: 36px; height: 36px; }
    .mindmap-btn svg { width: 18px; height: 18px; }
    .mindmap-loading { min-height: 400px; }
    .mindmap-error { min-height: 400px; padding: 24px; }
}

@media (max-width: 480px) {
    .mindmap-wrapper { height: 400px; }
    .mindmap-loading, .mindmap-error { min-height: 300px; }
}