/* Workbench navigation and progressive-disclosure presentation boundary.
   Phase changes coordinate focus and visibility only; they never mutate
   engagement state, evidence, scoring, confirmation, or release authority. */

.workbenchShell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
  gap: clamp(12px, 1.5vw, 20px);
  max-width: none;
  margin: 0;
  padding: 0 clamp(14px, 2.4vw, 28px);
  overflow-x: clip;
}

.workbenchShell main {
  width: min(100%, var(--max));
  min-width: 0;
  max-width: none;
  margin-inline: auto;
}

/* One label-only, horizontal phase rail at every viewport size. */
.phaseSpine {
  position: sticky;
  top: max(8px, env(safe-area-inset-top));
  z-index: 70;
  width: 100%;
  height: auto;
  max-height: none;
  margin: 10px 0 4px;
  padding: 8px;
  overflow: visible;
  border: 1px solid #cfd3d6;
  border-radius: 9px;
  background: rgba(255, 255, 255, .96);
  box-shadow: 0 6px 18px rgba(38, 52, 66, .09);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.phaseSpine .spineIntro {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.phaseSpine .rail {
  display: flex;
  gap: 6px;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  padding: 0 1px 2px;
  overflow-x: auto;
  overflow-y: hidden;
  border: 0;
  border-radius: 12px;
  background: transparent;
  box-shadow: none;
  scrollbar-width: thin;
  scrollbar-color: rgba(54, 95, 141, .28) transparent;
  scroll-snap-type: x proximity;
  overscroll-behavior-x: contain;
}

.phaseSpine .rail button {
  position: relative;
  display: grid;
  flex: 1 1 0;
  grid-template-columns: minmax(0, 1fr);
  place-items: center;
  gap: 10px;
  min-width: 88px;
  min-height: 48px;
  padding: 7px 8px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: #56616c;
  box-shadow: none;
  font-weight: 700;
  text-align: center;
  cursor: pointer;
  scroll-snap-align: start;
  transition: background-color .16s ease, color .16s ease, border-color .16s ease, box-shadow .16s ease;
}

.phaseSpine .rail button::before {
  content: "";
  position: absolute;
  inset: auto 9px 0;
  width: auto;
  height: 3px;
  border-radius: 999px;
  background: transparent;
}

.phaseSpine .rail button:hover {
  border-color: #d7dce0;
  background: #f4f5f3;
  color: var(--navy);
}

.phaseSpine .rail button:focus-visible {
  outline: 3px solid rgba(54, 95, 141, .42);
  outline-offset: 2px;
}

.phaseSpine .rail button.active {
  border-color: #c7d2df;
  background: #edf2f7;
  color: var(--entry-ink);
  box-shadow: none;
}

.phaseSpine .rail button.active::before {
  background: var(--blue);
}

.phaseSpine .rail b {
  display: block;
  overflow: hidden;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: .01em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.phaseStart {
  position: relative;
  height: 18px;
  scroll-margin-top: 86px;
}

.phaseStart::before {
  content: "";
  position: absolute;
  top: 8px;
  right: 0;
  left: 0;
  height: 1px;
  background: var(--line);
}

.phaseStart:focus {
  outline: none;
}

@media (orientation: portrait), (max-width: 900px) {
  .phaseSpine {
    top: max(6px, env(safe-area-inset-top));
    margin-top: 7px;
    padding: 7px;
    border-radius: 15px;
  }

  .phaseSpine .rail button {
    flex: 1 1 0;
    min-width: 0;
  }
}

@media (max-width: 620px) {
  .phaseSpine .rail b {
    font-size: 13px;
  }
}

@media (max-width: 560px) {
  .phaseSpine .rail button {
    flex-basis: 82px;
    min-width: 82px;
    min-height: 44px;
    padding: 6px;
  }
}

/* One major work area is open at a time. The summary is navigation, not a
   completion control; its compact metric is a read-only state reflection. */
.workflowArea {
  margin: 0 0 10px;
  overflow: clip;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: rgba(255, 255, 255, .9);
}

.workflowArea > summary {
  position: relative;
  display: grid;
  grid-template-columns: minmax(82px, .34fr) minmax(220px, .92fr) minmax(240px, 1.35fr) 82px;
  align-items: center;
  gap: 14px;
  min-height: 58px;
  padding: 11px 46px 11px 16px;
  background: rgba(255, 255, 255, .96);
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

.workflowArea > summary::-webkit-details-marker {
  display: none;
}

.workflowArea > summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 17px;
  display: grid;
  width: 24px;
  height: 24px;
  place-items: center;
  border: 1px solid #cbd6de;
  border-radius: 50%;
  color: var(--blue);
  font-size: 17px;
  font-weight: 700;
  transform: translateY(-50%);
}

.workflowArea[open] > summary {
  border-bottom: 1px solid #d4dde4;
  background: #edf2f7;
}

.workflowArea[open] > summary::after {
  content: "−";
  border-color: rgba(23, 61, 104, .32);
  background: #fff;
  color: var(--navy);
}

.workflowArea > summary > span {
  color: var(--blue);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.workflowArea > summary > strong {
  font-size: 14px;
  font-weight: 800;
}

.workflowArea > summary > small {
  color: #657581;
  font-size: 11px;
  line-height: 1.35;
}

.workflowArea > summary > .workflowSummaryMetric {
  grid-column: 4;
  align-self: center;
  justify-self: end;
  width: 82px;
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(25, 95, 198, .2);
  border-radius: 7px;
  background: rgba(255, 255, 255, .9);
  box-shadow: var(--sm);
  text-align: center;
}

.workflowArea > summary > .workflowSummaryMetric strong {
  display: block;
  padding: 5px 6px 0;
  color: rgba(7, 24, 63, .88);
  font-size: 16px;
  line-height: 1;
}

.workflowArea > summary > .workflowSummaryMetric span {
  display: block;
  padding: 1px 6px 5px;
  color: var(--muted);
  font-size: 7px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.workflowArea > summary > .workflowSummaryMetric em {
  display: none;
}

.workflowArea > .section {
  margin-bottom: 0;
  padding: 14px 14px 16px;
}

.workflowArea > summary:hover,
.workflowArea > summary:focus-visible {
  background: #f3f6f8;
}

.workflowArea > summary:focus-visible {
  outline: 3px solid rgba(62, 111, 150, .22);
  outline-offset: -3px;
}

.workflowArea > .section > .head {
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, .68fr);
}

@media (max-width: 820px) {
  .workflowArea > .section > .head {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 760px) {
  .workflowArea > summary {
    grid-template-columns: 78px minmax(0, 1fr) 74px;
    gap: 4px 12px;
  }

  .workflowArea > summary > small {
    grid-column: 2;
  }

  .workflowArea > summary > .workflowSummaryMetric {
    grid-column: 3;
    grid-row: 1 / 3;
    width: 74px;
  }
}

@media (max-width: 480px) {
  .workflowArea > summary {
    grid-template-columns: minmax(0, 1fr) 70px;
    padding-block: 12px;
  }

  .workflowArea > summary > span,
  .workflowArea > summary > strong,
  .workflowArea > summary > small {
    grid-column: 1;
  }

  .workflowArea > summary > small {
    padding-right: 10px;
  }

  .workflowArea > summary > .workflowSummaryMetric {
    grid-column: 2;
    grid-row: 1 / 4;
    width: 70px;
  }
}

@media print {
  .phaseSpine {
    display: none;
  }

  .workflowArea {
    display: block;
    overflow: visible;
    border: 0;
  }

  .workflowArea > summary {
    display: none;
  }

  .workflowArea > .section {
    padding-inline: 0;
  }
}