.project-shell {
  display: grid;
  grid-template-columns: minmax(250px, 310px) minmax(0, 1fr);
  gap: 16px;
  min-height: calc(100vh - 110px);
}

.project-shell.hidden { display: none; }
.project-rail, .project-workspace { border: 1px solid var(--line); border-radius: 10px; background: var(--panel); min-width: 0; }
.project-rail { padding: 12px; display: flex; flex-direction: column; gap: 12px; }
.project-rail-head, .project-workspace-head, .project-section-intro, .project-review-hero, .project-publish-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.project-rail-head h2, .project-workspace-head h2, .project-section-intro h3, .project-review-hero h3 { margin: 0; }
.project-rail-head p, .project-workspace-head p, .project-section-intro p, .project-review-hero p { margin: 3px 0 0; color: var(--muted); }
.project-search { display: grid; gap: 5px; }
.project-search span, .project-form label > span, .project-inline-card label > span, .project-equipment-form label > span { color: var(--muted); font-size: 11px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.project-list { display: grid; gap: 7px; align-content: start; overflow: auto; max-height: calc(100vh - 230px); }
.project-list-card { display: grid; gap: 7px; text-align: left; padding: 11px; border-color: var(--line); background: var(--panel-soft); }
.project-list-card.selected { border-color: var(--accent); background: var(--selected); }
.project-list-card > span { display: flex; justify-content: space-between; gap: 8px; }
.project-list-card small { color: var(--muted); font-style: normal; }
.project-list-card em, .project-status { border: 1px solid var(--line); border-radius: 999px; padding: 3px 8px; color: var(--accent); font-size: 10px; font-style: normal; font-weight: 800; letter-spacing: .05em; }
.project-card-counts { color: var(--muted); font-size: 11px; }
.project-workspace { display: flex; flex-direction: column; }
.project-workspace-head { padding: 18px; border-bottom: 1px solid var(--line); }
.project-steps { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border-bottom: 1px solid var(--line); }
.project-steps button { border: 0; border-right: 1px solid var(--line); border-radius: 0; padding: 11px 8px; background: transparent; color: var(--muted); }
.project-steps button:last-child { border-right: 0; }
.project-steps button span { display: inline-grid; place-items: center; width: 22px; height: 22px; border: 1px solid var(--line); border-radius: 50%; margin-right: 6px; }
.project-steps button.active { color: var(--text); background: var(--panel-soft); }
.project-steps button.active span { border-color: var(--accent); color: var(--accent); }
.project-step-body { padding: 18px; }
.project-form-grid, .project-equipment-form { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; }
.project-form label, .project-equipment-form label, .project-inline-card label { display: grid; gap: 5px; align-content: start; }
.project-form .wide, .project-equipment-form .wide { grid-column: span 2; }
.project-new-site-fields { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 13px; padding: 13px; border: 1px dashed var(--line); border-radius: 8px; }
.project-new-site-fields.hidden, .project-building-field.hidden { display: none; }
.project-form-actions { grid-column: 1 / -1; display: flex; justify-content: flex-end; gap: 9px; margin-top: 14px; }
.project-room-adders { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 13px; margin: 16px 0; }
.project-inline-card { border: 1px solid var(--line); border-radius: 8px; background: var(--panel-soft); padding: 13px; display: grid; gap: 10px; }
.project-inline-card h4 { margin: 0; }
.project-inline-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.project-room-list, .project-device-table { display: grid; gap: 8px; margin-top: 16px; }
.project-room-list article, .project-device-table article { border: 1px solid var(--line); border-radius: 8px; background: var(--panel-soft); padding: 12px; display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; gap: 15px; }
.project-room-list article > div, .project-device-table article > div { display: grid; gap: 4px; }
.project-room-list span, .project-room-list small, .project-device-table span, .project-device-table small { color: var(--muted); }
.project-room-list em, .project-device-table em { font-style: normal; color: var(--accent); font-size: 12px; }
.project-device-table article.needs-match { border-color: var(--warning, #d39b28); }
.project-device-identifiers { grid-template-columns: repeat(3, auto) !important; gap: 12px !important; }
.project-device-table article > div:last-child { display: flex; align-items: center; gap: 7px; }
.project-equipment-form { margin: 16px 0; padding: 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel-soft); }
.project-equipment-form .check-field { align-self: end; }
.project-import-button { position: relative; display: inline-flex; border: 1px solid var(--line); border-radius: 7px; padding: 9px 12px; font-weight: 700; cursor: pointer; }
.project-import-button input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.project-validation, .project-publish-bar { margin-top: 16px; padding: 16px; border: 1px solid var(--line); border-radius: 8px; }
.project-validation.valid { border-color: var(--success, #28a66a); }
.project-validation.invalid { border-color: var(--danger, #c6535d); }
.project-validation h4, .project-validation p { margin: 0 0 8px; }
.project-validation ul { margin: 7px 0 0; padding-left: 20px; }
.project-publish-bar span { display: block; color: var(--muted); margin-top: 4px; }
.project-empty { border: 1px dashed var(--line); border-radius: 8px; color: var(--muted); padding: 24px; text-align: center; }
.project-notice { min-height: 20px; margin: auto 18px 10px; color: var(--accent); }
.project-closeout-table { overflow: auto; margin-top: 16px; border: 1px solid var(--line); border-radius: 8px; }
.project-closeout-table table { width: 100%; border-collapse: collapse; min-width: 820px; }
.project-closeout-table th, .project-closeout-table td { padding: 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.project-closeout-table small { display: block; color: var(--muted); margin-top: 4px; }

@media (max-width: 900px) {
  .project-shell { grid-template-columns: 1fr; }
  .project-list { max-height: 280px; }
  .project-steps { display: flex; overflow-x: auto; }
  .project-steps button { flex: 0 0 auto; min-width: 145px; }
  .project-form-grid, .project-equipment-form { grid-template-columns: 1fr 1fr; }
  .project-room-adders { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .project-shell { min-height: auto; }
  .project-workspace-head, .project-section-intro, .project-review-hero, .project-publish-bar { align-items: flex-start; flex-direction: column; }
  .project-form-grid, .project-equipment-form, .project-new-site-fields, .project-inline-grid { grid-template-columns: 1fr; }
  .project-form .wide, .project-equipment-form .wide { grid-column: auto; }
  .project-room-list article, .project-device-table article { grid-template-columns: 1fr; }
  .project-device-identifiers { grid-template-columns: 1fr !important; }
}