/* RequirementsTable — Phase 4 Explainability UI */
.req-table-wrap {
    margin-top: 16px;
    border-top: 1px solid var(--border, #e2e8f0);
    padding-top: 12px;
}

/* Filters */
.req-filters {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
}
.req-status-filters {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}
.req-filter-btn {
    padding: 4px 10px;
    border: 1px solid var(--border, #e2e8f0);
    border-radius: 4px;
    background: var(--bg, #fff);
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.15s;
}
.req-filter-btn:hover { background: var(--bg2, #f7f7f7); }
.req-filter-btn.active { background: var(--primary, #3b82f6); color: #fff; border-color: var(--primary); }
.req-filter-btn.full.active { background: var(--success, #22c55e); border-color: var(--success); }
.req-filter-btn.partial.active { background: var(--warning, #eab308); border-color: var(--warning); }
.req-filter-btn.missing.active { background: var(--error, #ef4444); border-color: var(--error); }
.req-filter-btn.review.active { background: #06b6d4; border-color: #06b6d4; }
.req-count {
    display: inline-block;
    background: rgba(0,0,0,0.1);
    border-radius: 8px;
    padding: 0 5px;
    font-size: 0.7rem;
    margin-left: 3px;
}
.req-filter-btn.active .req-count { background: rgba(255,255,255,0.3); }

.req-secondary-filters {
    display: flex;
    gap: 8px;
}
.req-group-select, .req-search {
    padding: 4px 8px;
    border: 1px solid var(--border, #e2e8f0);
    border-radius: 4px;
    font-size: 0.8rem;
    background: var(--bg, #fff);
}
.req-group-select { max-width: 200px; }
.req-search { flex: 1; min-width: 150px; }

/* Table */
.req-table-container {
    overflow-x: auto;
    max-height: 600px;
    overflow-y: auto;
    border: 1px solid var(--border, #e2e8f0);
    border-radius: 6px;
}
.req-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}
.req-table thead {
    position: sticky;
    top: 0;
    z-index: 1;
}
.req-table th {
    background: var(--bg2, #f8fafc);
    padding: 8px 10px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--border, #e2e8f0);
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}
.req-table th:hover { background: var(--border, #e2e8f0); }
.req-th-id { width: 70px; }
.req-th-status { width: 90px; }
.req-th-conf { width: 55px; }

.req-row {
    cursor: pointer;
    transition: background 0.1s;
}
.req-row:hover { background: var(--bg2, #f8fafc); }
.req-row.expanded { background: var(--bg2, #f1f5f9); }
.req-row td {
    padding: 6px 10px;
    border-bottom: 1px solid var(--border, #e2e8f0);
    vertical-align: top;
}
.req-td-id { font-family: monospace; font-size: 0.75rem; color: var(--text2, #64748b); }
.req-td-summary { line-height: 1.4; }

/* Status pill */
.req-status-pill {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}
.req-status-pill.full { background: #dcfce7; color: #166534; }
.req-status-pill.partial { background: #fef9c3; color: #854d0e; }
.req-status-pill.missing { background: #fee2e2; color: #991b1b; }

/* Confidence */
.req-conf { font-weight: 600; font-size: 0.75rem; }
.req-conf.high { color: var(--success, #16a34a); }
.req-conf.medium { color: var(--warning, #ca8a04); }
.req-conf.low { color: var(--error, #dc2626); }

/* Review badge */
.req-review-badge {
    display: inline-block;
    margin-left: 6px;
    padding: 1px 6px;
    border-radius: 8px;
    font-size: 0.65rem;
    font-weight: 600;
    background: #e0f2fe;
    color: #0369a1;
    vertical-align: middle;
}

/* Drawer */
.req-drawer-row td {
    padding: 0 !important;
    border-bottom: 2px solid var(--primary, #3b82f6);
}
.req-drawer {
    padding: 12px 16px;
    background: var(--bg2, #f8fafc);
    animation: drawerSlide 0.15s ease-out;
}
@keyframes drawerSlide {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}
.req-drawer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
@media (max-width: 768px) {
    .req-drawer-grid { grid-template-columns: 1fr; }
}
.req-drawer-label {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text2, #64748b);
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.req-drawer-text {
    font-size: 0.85rem;
    line-height: 1.5;
    margin-bottom: 8px;
}
.req-drawer-quote {
    font-size: 0.8rem;
    margin-bottom: 8px;
    padding: 6px 10px;
    background: #fff;
    border-left: 3px solid var(--primary, #3b82f6);
    border-radius: 0 4px 4px 0;
}
.req-drawer-quote em { color: var(--text, #1e293b); }
.req-drawer-meta {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 0.7rem;
    color: var(--text2, #64748b);
}
.req-drawer-reasoning {
    margin-top: 8px;
    font-size: 0.8rem;
    font-style: italic;
    color: var(--text2, #475569);
}

/* Evidence list */
.req-evidence-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.req-evidence-item {
    padding: 6px 10px;
    background: #fff;
    border: 1px solid var(--border, #e2e8f0);
    border-radius: 4px;
    font-size: 0.8rem;
}
.req-ev-unit {
    display: inline-block;
    font-family: monospace;
    font-size: 0.7rem;
    background: var(--bg2, #f1f5f9);
    padding: 1px 5px;
    border-radius: 3px;
    margin-right: 6px;
    color: var(--text2);
}
.req-ev-quote { color: var(--text, #1e293b); }
.req-ev-part {
    display: block;
    margin-top: 3px;
    font-size: 0.7rem;
    color: var(--text2, #64748b);
}
.req-evidence-empty {
    font-size: 0.8rem;
    color: var(--text2, #94a3b8);
    font-style: italic;
}

/* Pagination */
.req-pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-top: 10px;
    font-size: 0.8rem;
}
.req-pagination button {
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg);
    cursor: pointer;
}
.req-pagination button:disabled { opacity: 0.4; cursor: default; }

/* Toggle button */
.req-toggle-btn {
    background: none;
    border: 1px solid var(--border, #e2e8f0);
    border-radius: 4px;
    padding: 6px 12px;
    font-size: 0.8rem;
    cursor: pointer;
    color: var(--primary, #3b82f6);
    font-weight: 500;
    transition: all 0.15s;
}
.req-toggle-btn:hover {
    background: var(--bg2, #f8fafc);
    border-color: var(--primary, #3b82f6);
}