/* ITTO总览页面 - 4象限布局 */

/* 4象限容器 */
.itto-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    height: calc(100vh - var(--header-height));
    gap: 1px;
    background: var(--border-color);
}

/* 象限通用 */
.itto-quadrant {
    background: var(--bg-primary);
    overflow-y: auto;
    padding: 16px;
    scrollbar-width: thin;
    scrollbar-color: var(--bg-hover) transparent;
}

/* 左上: 矩阵象限 */
.itto-quadrant.matrix-quadrant {
    padding: 12px;
    background: var(--bg-primary);
}

/* 左下: ITTO详情象限 */
.itto-quadrant.detail-quadrant {
    padding: 12px 16px;
}

/* 右上: 输入与输出象限 */
.itto-quadrant.doc-quadrant {
    padding: 10px 12px;
    border-top: 2px solid rgba(9,105,218,0.3);
}

/* 右下: 工具与技术象限 */
.itto-quadrant.tool-quadrant {
    padding: 10px 12px;
    border-top: 2px solid rgba(154,103,0,0.3);
}

/* 右侧象限共用（向后兼容） */
.itto-quadrant.list-quadrant {
    padding: 10px 12px;
}

/* ===== 矩阵样式（紧凑版） ===== */
.itto-matrix {
    width: 100%;
    border-collapse: separate;
    border-spacing: 2px;
    table-layout: fixed;
}

.itto-matrix thead th {
    padding: 6px 4px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border-radius: 3px;
    text-align: center;
    white-space: nowrap;
}
.itto-matrix thead th:first-child {
    width: 72px;
    background: transparent;
}

/* 过程组列头颜色区分 */
.itto-matrix thead th:nth-child(2) { color: #0550ae; background: rgba(9,105,218,0.06); }
.itto-matrix thead th:nth-child(3) { color: #116329; background: rgba(26,127,55,0.06); }
.itto-matrix thead th:nth-child(4) { color: #8a6914; background: rgba(154,103,0,0.06); }
.itto-matrix thead th:nth-child(5) { color: #a40e26; background: rgba(207,34,46,0.06); }
.itto-matrix thead th:nth-child(6) { color: #6e40c9; background: rgba(130,80,223,0.06); }

.itto-matrix tbody td:first-child {
    padding: 4px 6px;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
    vertical-align: middle;
    border-radius: 3px;
    white-space: nowrap;
}

.itto-matrix .cell-process {
    padding: 4px 5px;
    border-radius: 3px;
    cursor: pointer;
    transition: all 0.15s ease;
    vertical-align: middle;
    text-align: left;
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
}
.itto-matrix .cell-process:hover {
    background: var(--bg-hover);
    border-color: var(--accent-blue);
}

.itto-matrix .cell-process .cell-name {
    font-size: 10px;
    line-height: 1.2;
    color: var(--text-primary);
}

.itto-matrix .cell-process .cell-color-bar {
    display: inline-block;
    width: 2px;
    height: 14px;
    border-radius: 1px;
    vertical-align: middle;
    margin-right: 3px;
}

.itto-matrix .cell-empty {
    background: transparent;
}

/* 多过程单元格 */
.itto-matrix .cell-multi {
    padding: 2px;
    vertical-align: top;
    background: transparent;
}
.itto-matrix .cell-multi .cell-process {
    display: block;
    margin-bottom: 2px;
    text-align: left;
}
.itto-matrix .cell-multi .cell-process:last-child {
    margin-bottom: 0;
}

.itto-matrix .cell-process.selected {
    border-color: var(--accent-blue);
    background: rgba(9,105,218,0.2);
}

.itto-matrix tbody tr:hover .cell-process {
    background: var(--bg-hover);
}
.itto-matrix tbody tr:hover .cell-empty {
    background: transparent;
}

/* ===== 左下: ITTO详情 ===== */
.detail-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    font-size: 14px;
}

.detail-header {
    margin-bottom: 10px;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
    border-radius: 4px;
}
.detail-process-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 3px;
}
.detail-process-meta {
    font-size: 11px;
    color: var(--text-muted);
}
.detail-process-meta span {
    margin-right: 8px;
}
.detail-definition {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-top: 4px;
    padding: 6px 10px;
    background: rgba(9,105,218,0.05);
    border-left: 2px solid rgba(9,105,218,0.3);
    border-radius: var(--radius);
}

.detail-purpose {
    font-size: 11.5px;
    color: #116329;
    line-height: 1.5;
    margin-top: 4px;
    padding: 4px 10px;
    background: rgba(26,127,55,0.05);
    border-left: 2px solid rgba(26,127,55,0.3);
    border-radius: 3px;
}
.detail-purpose-label {
    font-weight: 600;
    color: #1a7f37;
}

.detail-frequency {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 4px;
    padding: 2px 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
}
.freq-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

/* ===== 三列布局: 输入 | 工具与技术 | 输出 ===== */
.itto-3col {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 8px;
    margin-top: 6px;
}

.itto-col {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
}

.itto-col-header {
    padding: 6px 10px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.3px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}
.itto-col-header.inputs { color: #0969da; border-top: 2px solid #0969da; background: rgba(9,105,218,0.08); }
.itto-col-header.tools  { color: #9a6700; border-top: 2px solid #9a6700; background: rgba(154,103,0,0.08); }
.itto-col-header.outputs { color: #1a7f37; border-top: 2px solid #1a7f37; background: rgba(26,127,55,0.08); }

.itto-col-body {
    padding: 6px 8px;
    max-height: calc(50vh - 160px);
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--bg-hover) transparent;
}

/* 列体颜色区分 */
.itto-col-inputs .itto-col-body { background: rgba(9,105,218,0.03); }
.itto-col-tools .itto-col-body  { background: rgba(154,103,0,0.03); }
.itto-col-outputs .itto-col-body { background: rgba(26,127,55,0.03); }

.itto-col-item {
    display: flex;
    align-items: flex-start;
    padding: 3px 0;
    font-size: 11px;
    line-height: 1.4;
    color: var(--text-primary);
}

.itto-col-dot {
    display: inline-block;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    margin-top: 4px;
    margin-right: 6px;
    flex-shrink: 0;
}

.itto-col-empty {
    font-size: 11px;
    color: var(--text-muted);
    text-align: center;
    padding: 12px 0;
}

/* ===== 右侧: 折叠列表 ===== */
.list-section-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    padding-bottom: 5px;
    border-bottom: 1px solid var(--border-color);
}

/* 输入与输出 - 蓝色标题 */
.section-title-doc {
    color: #0969da;
    border-bottom-color: rgba(9,105,218,0.3);
    padding-left: 10px;
    border-left: 3px solid #0969da;
}

/* 工具与技术 - 琥珀色标题 */
.section-title-tool {
    color: #9a6700;
    border-bottom-color: rgba(154,103,0,0.3);
    padding-left: 10px;
    border-left: 3px solid #9a6700;
}

/* 一级分组两列布局 */
#itto-doc-list,
#itto-tool-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
    align-content: start;
}

/* 折叠组 */
.fold-group {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

/* 文档分组 - 蓝色左边框 */
.doc-quadrant .fold-group {
    border-left: 2px solid rgba(9,105,218,0.4);
}

/* 工具分组 - 琥珀色左边框 */
.tool-quadrant .fold-group {
    border-left: 2px solid rgba(154,103,0,0.4);
}

.fold-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 10px;
    background: var(--bg-secondary);
    cursor: pointer;
    user-select: none;
    transition: background 0.15s;
}

/* 文档分组标题 - 蓝色图标 */
.doc-quadrant .fold-arrow {
    color: #0969da;
}

/* 工具分组标题 - 琥珀色图标 */
.tool-quadrant .fold-arrow {
    color: #9a6700;
}
.fold-header:hover {
    background: var(--bg-hover);
}
.fold-header-left {
    display: flex;
    align-items: center;
    gap: 6px;
}
.fold-arrow {
    font-size: 8px;
    color: var(--text-muted);
    transition: transform 0.2s;
    display: inline-block;
}
.fold-group.open .fold-arrow {
    transform: rotate(90deg);
}
.fold-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-primary);
}
.fold-count {
    font-size: 9px;
    color: var(--text-muted);
    padding: 1px 5px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    flex-shrink: 0;
}
.fold-count .hl-count {
    color: var(--accent-blue);
    font-weight: 600;
}

.fold-body {
    display: none;
    padding: 2px 6px 4px;
}
.fold-group.open .fold-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 2px;
}

/* 单个条目 */
.itto-item {
    display: flex;
    align-items: center;
    padding: 3px 8px;
    margin: 1px 0;
    border-radius: 3px;
    font-size: 11px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.15s;
}
.itto-item:hover {
    background: var(--bg-hover);
}

.itto-item.highlight {
    background: rgba(9,105,218,0.12);
    border-left: 2px solid var(--accent-blue);
    padding-left: 6px;
}
.itto-item.highlight .itto-item-dot {
    background: var(--accent-blue);
}

.itto-item.dim {
    opacity: 0.3;
}

.itto-item-dot {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--text-muted);
    margin-right: 6px;
    flex-shrink: 0;
    transition: all 0.15s;
}
.itto-item-label {
    flex: 1;
    line-height: 1.3;
}

.itto-item-role {
    font-size: 9px;
    padding: 0 4px;
    border-radius: 3px;
    margin-left: 4px;
    flex-shrink: 0;
    line-height: 16px;
}
.itto-item-role.input-only { background: rgba(9,105,218,0.2); color: #0969da; }
.itto-item-role.output-only { background: rgba(26,127,55,0.2); color: #1a7f37; }
.itto-item-role.both { background: rgba(154,103,0,0.2); color: #9a6700; }

/* 条目选中态 */
.itto-item.active {
    background: rgba(9,105,218,0.15);
    border-left: 2px solid var(--accent-blue);
}

/* ===== 左下: 条目关联过程详情 ===== */
.item-detail-header {
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(90deg, rgba(9,105,218,0.04), transparent);
    padding: 10px 12px;
    border-radius: 4px;
}
.item-detail-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2px;
}
.item-detail-desc {
    font-size: 11px;
    color: var(--text-secondary);
    line-height: 1.5;
    padding: 4px 8px;
    background: rgba(9,105,218,0.05);
    border-left: 2px solid rgba(9,105,218,0.2);
    border-radius: 3px;
    margin-top: 4px;
}
.item-detail-section-title {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    margin: 8px 0 4px;
    letter-spacing: 0.3px;
}
.item-detail-proc {
    display: flex;
    align-items: center;
    padding: 4px 8px;
    margin: 2px 0;
    border-radius: 3px;
    font-size: 11px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.15s;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
}
.item-detail-proc:hover {
    background: var(--bg-hover);
    border-color: var(--accent-blue);
}
.item-detail-proc .proc-color-bar {
    width: 3px;
    height: 16px;
    border-radius: 1px;
    margin-right: 8px;
    flex-shrink: 0;
}
.item-detail-proc .proc-info {
    flex: 1;
}
.item-detail-proc .proc-name {
    font-weight: 600;
    font-size: 11px;
}
.item-detail-proc .proc-meta {
    font-size: 9px;
    color: var(--text-muted);
}
.item-detail-proc .proc-role {
    font-size: 9px;
    padding: 1px 5px;
    border-radius: 3px;
    flex-shrink: 0;
    margin-left: 4px;
}
.item-detail-proc .proc-role.as-input { background: rgba(9,105,218,0.2); color: #0969da; }
.item-detail-proc .proc-role.as-output { background: rgba(26,127,55,0.2); color: #1a7f37; }
.item-detail-proc .proc-role.as-tool { background: rgba(154,103,0,0.2); color: #9a6700; }
.item-detail-proc .proc-role.as-both { background: rgba(154,103,0,0.2); color: #9a6700; }

/* ===== 论文写作素材 ===== */
.detail-essay-section {
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid rgba(130,80,223,0.2);
    background: linear-gradient(180deg, rgba(130,80,223,0.04) 0%, transparent 100%);
    border-radius: 4px;
    padding: 10px;
}

.detail-essay-title {
    font-size: 12px;
    font-weight: 700;
    color: #8250df;
    margin-bottom: 8px;
    letter-spacing: 0.3px;
    padding-left: 10px;
    border-left: 3px solid #8250df;
}

.detail-essay-block {
    margin-bottom: 6px;
}

.detail-essay-label {
    font-size: 10px;
    font-weight: 600;
    color: #b394f0;
    margin-bottom: 2px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.detail-essay-text {
    font-size: 11px;
    line-height: 1.5;
    color: var(--text-secondary);
    padding: 4px 8px;
    background: rgba(130,80,223,0.06);
    border-radius: 3px;
    border-left: 1px solid rgba(130,80,223,0.15);
}

.detail-essay-framework {
    padding: 4px 8px;
    background: rgba(130,80,223,0.06);
    border-radius: 3px;
    border-left: 2px solid #8250df;
}

.framework-step {
    font-size: 11px;
    line-height: 1.5;
    color: var(--text-primary);
    padding: 2px 0;
}

.framework-step::before {
    content: "→ ";
    color: var(--accent-purple, #8250df);
    font-weight: 600;
}

/* ===== 响应式 ===== */
@media (max-width: 1100px) {
    .itto-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto auto;
    }
}