/* 目录页只负责工具发现，具体表单样式由各工具详情页按需加载。 */
.tools-shell {
    padding-top: var(--space-6);
    padding-bottom: 64px;
}

.tools-shell .page-heading {
    margin-bottom: var(--space-5);
}

.tools-shell .page-heading h1 {
    font-family: inherit;
    font-size: 32px;
}

.tools-shell .page-heading p {
    margin-top: var(--space-2);
    font-size: 16px;
}

.tool-directory-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.tool-filter-summary {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-4);
    min-height: 44px;
}

.tool-filter-summary p {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    font-variant-numeric: tabular-nums;
}

.tool-search-field {
    display: grid;
    gap: 8px;
    flex: 1 1 320px;
    max-width: 560px;
    min-width: 0;
}

.tool-search-field label {
    color: var(--ink);
    font-size: 14px;
    font-weight: 750;
}

.tool-search-field input {
    box-sizing: border-box;
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    color: var(--ink);
    background: var(--surface);
    border: 1px solid var(--line-strong);
    border-radius: 4px;
    font: inherit;
}

.tool-search-field input:focus-visible {
    outline: 3px solid var(--eye);
    outline-offset: 2px;
}

.tool-categories {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--line);
}

.tool-category,
.tool-page-actions button,
#tool-reset {
    min-height: 44px;
    padding: 8px 12px;
    flex-shrink: 0;
    white-space: nowrap;
    color: var(--ink);
    background: var(--surface);
    border: 1px solid var(--line-strong);
    border-radius: 4px;
    font: inherit;
    font-size: 14px;
    font-weight: 750;
    cursor: pointer;
    transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.tool-category:hover,
.tool-category:focus-visible,
.tool-page-actions button:hover:not(:disabled),
.tool-page-actions button:focus-visible {
    border-color: var(--forest);
}

.tool-category[aria-pressed="true"] {
    color: var(--surface);
    background: var(--forest);
    border-color: var(--forest);
}

.tool-list {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    scroll-margin-top: var(--space-5);
    gap: 16px;
}

.tool-card {
    position: relative;
    display: grid;
    align-content: start;
    gap: var(--space-2);
    min-width: 0;
    min-height: 144px;
    padding: var(--space-4);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 6px;
    transition: border-color 160ms ease, background-color 160ms ease;
}

.tool-card:hover {
    border-color: var(--forest);
    background: var(--surface-soft);
}

.tool-card strong {
    padding-right: 28px;
    font-size: 18px;
    line-height: 1.5;
    overflow-wrap: anywhere;
}

.tool-card > span:not(.tool-status, .card-arrow) {
    color: var(--muted);
    font-size: 14px;
}

.tool-status {
    width: fit-content;
    color: var(--muted);
    font-size: 12px;
    font-weight: 850;
}

.tool-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
}

.tool-pagination[hidden],
#tool-reset[hidden] {
    display: none;
}

.tool-page-status {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
}

.tool-page-actions {
    display: flex;
    gap: 8px;
}

.tool-page-actions button:disabled {
    color: var(--muted);
    background: var(--surface-soft);
    border-color: var(--line);
    cursor: not-allowed;
}

.tool-card[hidden] {
    display: none;
}

.tool-empty {
    margin: 0;
    padding: 48px 16px;
    color: var(--muted);
    text-align: center;
}

.tool-category {
    background: transparent;
    border-color: transparent;
}

#tool-reset {
    padding-right: 0;
    color: var(--orange-dark);
    background: transparent;
    border-color: transparent;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.tool-card .card-arrow {
    position: absolute;
    top: 40px;
    right: 16px;
}

.tool-list:focus-visible {
    outline: 2px solid var(--forest);
    outline-offset: 4px;
}

@media (max-width: 1120px) {
    .tool-list {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 920px) {
    .tool-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .tools-shell {
        padding-top: var(--space-5);
    }

    .tools-shell .page-heading h1 {
        font-size: 28px;
    }

    .tool-directory-controls {
        gap: var(--space-2);
    }

    .tool-filter-summary {
        width: 100%;
        justify-content: space-between;
    }

    .tool-categories {
        gap: 4px;
        margin-bottom: var(--space-4);
        padding-bottom: var(--space-2);
    }

    .tool-category {
        padding: 8px;
    }

    .tool-list {
        grid-template-columns: minmax(0, 1fr);
        gap: var(--space-2);
    }

    .tool-card {
        min-height: 0;
        gap: 4px;
    }

    .tool-card .card-arrow {
        top: 36px;
    }

    .tool-page-actions {
        width: 100%;
    }

    .tool-page-actions button {
        flex: 1;
    }
}