.usecase-overview {
    padding-block: var(--tk-space-4) var(--tk-space-7);
}

.usecase-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(var(--tk-size-usecase-card-min), 1fr));
    gap: var(--tk-space-4);
    padding: 0;
    margin: 0;
    list-style: none;
}

.usecase-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: var(--tk-space-3);
    padding: var(--tk-space-5);
    background-color: var(--tk-color-surface);
    border: var(--tk-border-width) solid var(--tk-color-line);
    border-radius: var(--tk-radius-lg);
    box-shadow: var(--tk-shadow-sm);
    transition: box-shadow var(--tk-motion-base) var(--tk-motion-ease), border-color var(--tk-motion-base) var(--tk-motion-ease), transform var(--tk-motion-base) var(--tk-motion-ease);
}

.usecase-card:hover {
    border-color: var(--tk-color-line-strong);
    box-shadow: var(--tk-shadow-md);
    transform: translateY(calc(var(--tk-space-1) * -1));
}

.usecase-card-title {
    margin: 0;
    font-size: var(--tk-font-size-h3);
}

.usecase-card-link {
    color: var(--tk-color-text);
    text-decoration: var(--tk-link-decoration-ui);
}

.usecase-card-link::after {
    position: absolute;
    inset: 0;
    content: "";
    border-radius: inherit;
}

.usecase-card-link:hover {
    color: var(--tk-color-primary-text);
}

.usecase-card-text {
    flex-grow: 1;
    margin: 0;
    font-size: var(--tk-font-size-sm);
    color: var(--tk-color-text-muted);
}

.usecase-chain {
    display: flex;
    flex-wrap: wrap;
    gap: var(--tk-space-1);
    align-items: center;
    padding: var(--tk-space-3) 0 0;
    margin: 0;
    list-style: none;
    border-top: var(--tk-border-width) solid var(--tk-color-line);
}

.usecase-chain-item {
    display: inline-flex;
    gap: var(--tk-space-1);
    align-items: center;
    font-size: var(--tk-font-size-xs);
    font-weight: var(--tk-font-weight-semibold);
    color: var(--tk-color-text);
}

.usecase-chain-item .icon {
    width: var(--tk-size-icon-sm);
    height: var(--tk-size-icon-sm);
    color: var(--tk-color-text-muted);
}

.usecase-card:hover .feature-card-arrow {
    transform: translateX(var(--tk-space-1));
}

.usecase-hero {
    padding-block: var(--tk-space-7) var(--tk-space-5);
}

.usecase-hero-copy {
    max-width: var(--tk-size-hero-copy);
}

.usecase-hero h1 {
    margin-bottom: var(--tk-space-5);
}

.usecase-hero .short-answer {
    max-width: var(--tk-size-prose);
    margin-bottom: var(--tk-space-3);
    font-size: var(--tk-font-size-lead);
    color: var(--tk-color-text-muted);
}

.usecase-audience {
    max-width: var(--tk-size-prose);
    margin: var(--tk-space-4) 0 0;
    font-size: var(--tk-font-size-sm);
    color: var(--tk-color-text-muted);
}

.usecase-features .feature-cards {
    grid-template-columns: minmax(0, 1fr);
}

.usecase-story {
    padding-block: var(--tk-space-5);
}

.usecase-story-grid {
    display: grid;
    gap: var(--tk-space-4);
}

.usecase-story-card {
    padding: var(--tk-space-5);
    background-color: var(--tk-color-surface);
    border: var(--tk-border-width) solid var(--tk-color-line);
    border-radius: var(--tk-radius-lg);
    box-shadow: var(--tk-shadow-sm);
}

.usecase-story-solution {
    background-color: var(--tk-color-primary-soft);
    background-image: var(--tk-gradient-panel);
}

.usecase-story-heading {
    margin-bottom: var(--tk-space-3);
    font-size: var(--tk-font-size-h3);
}

.usecase-tree-head {
    max-width: var(--tk-size-prose);
    margin-bottom: var(--tk-space-5);
}

.usecase-tree-text {
    margin: 0;
    color: var(--tk-color-text-muted);
}

.usecase-tree-grid {
    display: grid;
    gap: var(--tk-space-6);
    align-items: center;
}

.org-tree,
.org-tree-children {
    display: grid;
    gap: var(--tk-space-3);
    padding: 0;
    margin: 0;
    list-style: none;
}

.org-tree-children {
    margin: var(--tk-space-3) 0 0 var(--tk-space-4);
    padding-left: var(--tk-space-5);
}

.org-tree-children > .org-tree-node {
    position: relative;
}

.org-tree-children > .org-tree-node::before {
    position: absolute;
    top: 0;
    bottom: calc(var(--tk-space-3) * -1);
    left: calc(var(--tk-space-5) * -1);
    content: "";
    border-left: var(--tk-border-width) solid var(--tk-color-line-strong);
}

.org-tree-children > .org-tree-node:last-child::before {
    bottom: auto;
    height: var(--tk-org-tree-tick);
}

.org-tree-children > .org-tree-node::after {
    position: absolute;
    top: var(--tk-org-tree-tick);
    left: calc(var(--tk-space-5) * -1);
    width: var(--tk-space-5);
    content: "";
    border-top: var(--tk-border-width) solid var(--tk-color-line-strong);
}

.org-tree-card {
    display: flex;
    flex-direction: column;
    gap: var(--tk-space-1);
    padding: var(--tk-space-3) var(--tk-space-4);
    background-color: var(--tk-color-surface);
    border: var(--tk-border-width) solid var(--tk-color-line);
    border-radius: var(--tk-radius-md);
    box-shadow: var(--tk-shadow-sm);
}

.org-tree-level-0 > .org-tree-card {
    background-color: var(--tk-color-primary-soft);
    border-color: var(--tk-color-primary-text);
}

.org-tree-name {
    font-family: var(--tk-font-display);
    font-weight: var(--tk-font-weight-semibold);
    color: var(--tk-color-text);
}

.org-tree-note {
    font-size: var(--tk-font-size-xs);
    color: var(--tk-color-text-muted);
}

.org-diagram {
    display: flex;
    justify-content: center;
    width: 100%;
}

.org-diagram .scene-svg {
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: var(--tk-size-org-diagram-height);
}

@media (min-width: 768px) {
    .usecase-features .feature-cards {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .usecase-story-grid {
        grid-template-columns: var(--tk-usecase-story-columns);
    }

    .usecase-story-card {
        padding: var(--tk-space-6);
    }
}

@media (min-width: 1024px) {
    .usecase-features .feature-cards {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .usecase-hero {
        padding-block: var(--tk-space-8) var(--tk-space-6);
    }

    .usecase-tree-grid {
        grid-template-columns: var(--tk-usecase-tree-columns);
        gap: var(--tk-space-7);
    }
}

@media (prefers-reduced-motion: reduce) {
    .usecase-card:hover,
    .usecase-card:hover .feature-card-arrow {
        transform: none;
    }
}