.intake-selector { margin-bottom: 22px; padding: 24px; }
.intake-choices { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 16px; }
.intake-choice { border: 1px solid var(--border, #d9e2ef); background: #fff; border-radius: 14px; padding: 20px; text-align: left; color: #173454; cursor: pointer; }
.intake-choice strong { display: block; font-size: 18px; margin-bottom: 8px; }
.intake-choice span { display: block; color: #627895; line-height: 1.6; font-size: 14px; }
.intake-choice[aria-pressed="true"] { border: 2px solid #2e56e8; background: #f2f6ff; padding: 19px; box-shadow: 0 3px 12px #2e56e812; }
.intake-choice:disabled { cursor: default; opacity: .7; }
.problem-register { margin: 22px 0; overflow: hidden; }
.problem-register-header { align-items: center; flex-wrap: wrap; margin-bottom: 0; padding: 18px 20px; }
.problem-register h2 { margin: 0; }
.problem-register-actions { display: flex; align-items: center; gap: 10px; min-width: 0; margin-left: auto; }
.problem-register .toolbar-panel { width: auto; max-width: 100%; margin: 0; }
.problem-register .search-box { width: 310px; flex: 0 1 310px; }
.problem-register .toolbar-panel select { width: 140px; flex: 0 0 140px; }
.problem-register-toggle { flex: 0 0 34px; padding: 0; cursor: pointer; }
.problem-register-toggle[aria-expanded="true"] { transform: rotate(180deg); border-color: #cbd9ee; background: #f7faff; }
.problem-register-toggle:focus-visible { outline: 2px solid var(--primary, #2957d9); outline-offset: 3px; }
.problem-register-body { padding: 0 20px 18px; }
.problem-register-body[hidden] { display: none; }
.problem-register-body .empty-state { margin: 0; padding: 24px 12px; }
.problem-table { min-width: 950px; }
.problem-table th, .problem-table td { padding: 16px 12px; }
.problem-table .problem-title { min-width: 210px; max-width: 320px; overflow-wrap: anywhere; }
.problem-table small { display: block; margin-top: 5px; color: #667e99; }
.problem-table .problem-overdue { color: #c12740; font-weight: 700; }
.problem-conversion { border-left: 4px solid #2d58e7; padding: 20px 24px; margin-bottom: 20px; }
.problem-conversion p { line-height: 1.7; color: #627895; }
.problem-file-links { display: flex; gap: 10px; flex-wrap: wrap; padding: 10px 0; overflow-wrap: anywhere; }
.problem-detail-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; margin: 20px 0; }
.problem-detail-grid > div { background: #f5f8fc; border-radius: 10px; padding: 16px; min-width: 0; }
.problem-detail-grid p { white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.7; margin: 10px 0 0; }
.problem-history-entry { padding: 12px 0; border-bottom: 1px solid #e5ebf3; }
#problemTaskList:not(:empty) { margin-bottom: 20px; }
.problem-form-message { padding: 12px 0; color: #b32138; }
.problem-updates { margin: 0; }
.problem-update { padding: 14px 16px; margin: 10px 0; background: #f5f8fc; border-radius: 10px; }
.problem-update-meta { display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 20px; color: #627895; font-size: 13px; line-height: 1.6; }
.problem-update-meta > span { overflow-wrap: anywhere; }
.problem-update-meta strong { color: #173659; }
.problem-update p { white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.7; margin-bottom: 0; }
.problem-detail-actions form { display: grid; gap: 12px; margin-top: 16px; }
.problem-detail-actions textarea { min-height: 200px; }
.problem-detail-view form button { justify-self: start; }
.problem-detail-view form [role="status"] { margin: 0; color: #b32138; overflow-wrap: anywhere; }
.problem-registration { margin: 0; }
@media (max-width: 720px) {
  .intake-choices, .problem-detail-grid { grid-template-columns: 1fr; }
  .problem-register-header { padding: 16px 14px; }
  .problem-register-body { padding: 0 14px 18px; }
}

/* Keep the existing single-column navigation from covering intake controls. */
@media (max-width: 900px) {
  .problem-register-header { align-items: stretch; }
  .problem-register-actions { display: grid; grid-template-columns: minmax(0, 1fr) 34px; width: 100%; margin-left: 0; }
  .problem-register .toolbar-panel { width: 100%; min-width: 0; }
  .problem-register .search-box { width: 100%; min-width: 0; flex: auto; }
  .problem-register .toolbar-panel select { width: 100%; flex: auto; }
  .problem-register-toggle { align-self: end; margin-bottom: 3px; }
  .app-shell > .sidebar { position: static; }
}

/* Standalone detail page: read the record on the left, contribute on the right. */
.problem-detail-view.active { display: grid; gap: 18px; }
.problem-detail-header, .problem-detail-card, .problem-detail-loading { padding: 24px; min-width: 0; }
.problem-detail-header { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 20px 32px; }
.problem-detail-heading { min-width: 0; }
.problem-header-actions { display: grid; gap: 10px; min-width: 260px; max-width: 400px; }
.problem-header-actions button { width: 100%; white-space: normal; }
.problem-detail-header h2 { margin: 8px 0 14px; overflow-wrap: anywhere; }
.problem-detail-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 10px 24px; color: #627895; line-height: 1.6; }
.problem-detail-layout { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(340px, 1fr); gap: 24px; align-items: start; }
.problem-detail-main, .problem-detail-actions { display: grid; gap: 18px; min-width: 0; }
.problem-detail-main, .problem-detail-actions { scrollbar-width: thin; scrollbar-color: #a8b7cc transparent; }
.problem-detail-main::-webkit-scrollbar, .problem-detail-actions::-webkit-scrollbar { width: 6px; height: 6px; }
.problem-detail-main::-webkit-scrollbar-thumb, .problem-detail-actions::-webkit-scrollbar-thumb { background: #a8b7cc; border-radius: 8px; }
.problem-detail-main::-webkit-scrollbar-thumb:hover, .problem-detail-actions::-webkit-scrollbar-thumb:hover { background: #7b91ad; }
.problem-detail-main::-webkit-scrollbar-track, .problem-detail-actions::-webkit-scrollbar-track { background: transparent; }
.problem-detail-main::-webkit-scrollbar-button, .problem-detail-actions::-webkit-scrollbar-button { display: none; }
.problem-detail-actions { position: sticky; top: 24px; max-height: calc(100vh - 48px); overflow: auto; padding: 2px; }
.problem-detail-card h3 { margin: 0 0 16px; }
.problem-detail-card p { overflow-wrap: anywhere; line-height: 1.7; }
.problem-detail-actions form { margin-top: 0; }
.problem-detail-actions label { display: grid; gap: 8px; }
.problem-registration form { margin-top: 16px; }
.problem-history summary { cursor: pointer; font-weight: 700; line-height: 1.6; }
.problem-history-entry p { white-space: pre-wrap; }
@media (min-width: 1001px) and (min-height: 600px) {
  body:has(#problemDetailView.active) { height: 100dvh; overflow: hidden; }
  .main-content:has(> #problemDetailView.active) {
    display: flex; flex-direction: column; height: 100dvh; min-height: 0;
    overflow: hidden; padding-bottom: 24px;
  }
  .main-content:has(> #problemDetailView.active) > .topbar,
  .main-content:has(> #problemDetailView.active) > .status-message { flex: none; }
  .problem-detail-view.active {
    flex: 1; min-height: 0; grid-template-rows: auto auto minmax(0, 1fr);
  }
  .problem-detail-layout { height: 100%; min-height: 0; align-items: stretch; overflow: hidden; }
  .problem-detail-main, .problem-detail-actions {
    position: static; height: 100%; min-height: 0; max-height: none;
    overflow-y: auto; overscroll-behavior-y: contain; scrollbar-gutter: stable;
    align-content: start; padding: 2px 8px 2px 2px;
  }
  .problem-detail-main:focus-visible, .problem-detail-actions:focus-visible {
    outline: 2px solid var(--primary, #2957d9); outline-offset: -2px;
  }
}
@media (max-width: 1200px) {
  .problem-detail-main .problem-detail-grid { grid-template-columns: 1fr; }
}
@media (max-width: 1000px) {
  .problem-detail-header { grid-template-columns: 1fr; }
  .problem-header-actions { min-width: 0; max-width: none; }
  .problem-detail-layout { grid-template-columns: 1fr; }
  .problem-detail-actions { position: static; max-height: none; overflow: visible; padding: 0; }
}
@media (max-width: 600px) {
  .problem-detail-header, .problem-detail-card, .problem-detail-loading { padding: 18px; }
  .problem-detail-meta { display: grid; gap: 8px; justify-items: start; }
  .problem-detail-view .detail-page-toolbar { align-items: flex-start; }
}