:root {
  --ink: #263238;
  --paper: #f0f4f8;
  --accent: #00a676;
  --warn: #ffcf56;
  --line: rgba(38, 50, 56, 0.16);
  --muted: rgba(38, 50, 56, 0.68);
  --white: #ffffff;
  --danger: #cf3f38;
  --shadow: 0 22px 70px rgba(38, 50, 56, 0.14);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(38, 50, 56, 0.055) 1px, transparent 1px),
    linear-gradient(rgba(38, 50, 56, 0.045) 1px, transparent 1px),
    var(--paper);
  background-size: 28px 28px;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 286px minmax(0, 1fr);
}

.rail {
  min-height: 100vh;
  padding: 24px;
  color: var(--white);
  background: var(--ink);
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.brand {
  color: inherit;
  text-decoration: none;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: center;
}

.brand strong {
  display: block;
  font-size: 22px;
  line-height: 1;
}

.brand em,
.rail-note p,
.eyebrow,
.mono {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.brand em {
  display: block;
  margin-top: 6px;
  color: rgba(255, 255, 255, 0.68);
  font-size: 12px;
  font-style: normal;
}

.tabs {
  display: grid;
  gap: 8px;
}

.tab {
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.78);
  background: transparent;
  text-align: left;
  transition: background 160ms ease, color 160ms ease, transform 160ms ease;
}

.tab:hover,
.tab.is-active {
  color: var(--ink);
  background: var(--warn);
  transform: translateX(2px);
}

.rail-note {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
}

.rail-note p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 12px;
  line-height: 1.55;
}

.workspace {
  padding: 26px;
  min-width: 0;
}

.topbar {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: end;
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  font-size: clamp(30px, 4vw, 56px);
  line-height: 0.95;
}

h2 {
  margin: 0;
  font-size: clamp(24px, 3vw, 38px);
  line-height: 1.02;
}

h3 {
  margin: 0 0 14px;
  font-size: 16px;
}

.searchbar {
  display: flex;
  gap: 8px;
  min-width: min(460px, 100%);
}

.searchbar input,
.section-title select {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.75);
}

.searchbar button,
.action-row button {
  min-height: 44px;
  border: 1px solid var(--ink);
  border-radius: 8px;
  padding: 0 14px;
  color: var(--ink);
  background: var(--white);
  white-space: nowrap;
}

.action-row .primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
}

.notice {
  min-height: 38px;
  margin-bottom: 18px;
  padding: 10px 14px;
  border-left: 4px solid var(--accent);
  background: rgba(255, 255, 255, 0.72);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 13px;
}

.notice.is-error {
  border-left-color: var(--danger);
}

.screen {
  display: none;
}

.screen.is-visible {
  display: block;
  animation: enter 260ms ease both;
}

@keyframes enter {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.case-layout,
.details-grid,
.report-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.42fr) minmax(330px, 0.8fr);
  gap: 18px;
  align-items: start;
}

.active-case,
.side-panel,
.spec-list,
.notes,
.report-table,
.comparison {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
}

.active-case {
  min-height: 570px;
  padding: clamp(22px, 4vw, 46px);
  display: flex;
  flex-direction: column;
}

.case-head,
.section-title {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: start;
}

.mono {
  letter-spacing: 0;
  font-size: 12px;
  color: var(--muted);
}

.stage-badge {
  flex: 0 0 auto;
  border-radius: 999px;
  padding: 8px 12px;
  background: var(--warn);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
}

.case-summary {
  max-width: 760px;
  margin: 22px 0 28px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.55;
}

.workflow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: auto 0 28px;
}

.step {
  min-height: 94px;
  border: 1px dashed rgba(38, 50, 56, 0.25);
  border-radius: 8px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: var(--muted);
  background: rgba(240, 244, 248, 0.72);
  transition: transform 160ms ease, border 160ms ease, background 160ms ease;
}

.step b {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 13px;
}

.step.is-done {
  border-style: solid;
  color: var(--ink);
}

.step.is-current {
  background: var(--ink);
  color: var(--white);
  transform: translateY(-4px);
}

.resource {
  display: grid;
  gap: 10px;
}

.resource div:first-child {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
}

.resource span {
  color: var(--muted);
}

.resource strong {
  font-size: 40px;
  line-height: 1;
}

.meter {
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(38, 50, 56, 0.12);
}

.meter span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--warn));
  transition: width 320ms ease;
}

.action-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.side-panel,
.spec-list,
.notes,
.report-table,
.comparison {
  padding: 18px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 22px;
}

.metric {
  min-height: 82px;
  border-radius: 8px;
  padding: 12px;
  background: var(--paper);
}

.metric span,
.case-chip em,
.lane-item em,
.lane-item small,
.compare-row span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
}

.metric strong {
  display: block;
  margin-top: 12px;
  font-size: 28px;
}

.case-list {
  display: grid;
  gap: 8px;
}

.case-chip,
.lane-item {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.75);
  text-align: left;
  transition: border 160ms ease, transform 160ms ease, background 160ms ease;
}

.case-chip:hover,
.case-chip.is-active,
.lane-item:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.case-chip span {
  display: block;
  font-weight: 700;
  line-height: 1.25;
}

.section-title {
  margin-bottom: 16px;
}

.section-title select {
  max-width: 420px;
}

.spec-row {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.spec-row:last-child {
  border-bottom: 0;
}

.spec-row span {
  color: var(--muted);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 12px;
}

.spec-row strong {
  line-height: 1.42;
}

.notes {
  display: grid;
  gap: 10px;
}

.note {
  padding: 12px;
  border-left: 3px solid var(--warn);
  background: var(--paper);
}

.note span {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  color: var(--muted);
  font-size: 12px;
}

.note p {
  margin: 8px 0 0;
  line-height: 1.45;
}

.lanes {
  display: grid;
  gap: 10px;
}

.lane {
  display: grid;
  grid-template-columns: 170px minmax(0, 1fr);
  gap: 12px;
  align-items: stretch;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.76);
}

.lane h3 {
  margin: 0;
  padding: 12px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--white);
}

.lane > div {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 8px;
}

.lane-item {
  min-height: 132px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.lane-date {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  color: var(--muted);
  font-size: 12px;
}

.lane-item.conflict {
  border-color: var(--danger);
  background: rgba(207, 63, 56, 0.08);
}

.lane-item.busy {
  border-color: var(--warn);
  background: rgba(255, 207, 86, 0.16);
}

.lane-item.done {
  border-color: var(--accent);
}

.report-row,
.compare-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 70px 120px;
  gap: 10px;
  align-items: center;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.compare-row {
  grid-template-columns: minmax(0, 1fr) 90px;
}

.report-row:last-child,
.compare-row:last-child {
  border-bottom: 0;
}

.report-row span,
.report-row em {
  color: var(--muted);
  font-style: normal;
}

@media (max-width: 980px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .rail {
    min-height: auto;
    padding: 16px;
  }

  .tabs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .tab {
    text-align: center;
  }

  .rail-note {
    display: none;
  }

  .topbar,
  .case-head,
  .section-title {
    flex-direction: column;
    align-items: stretch;
  }

  .case-layout,
  .details-grid,
  .report-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .workspace {
    padding: 16px;
  }

  .tabs,
  .workflow,
  .metric-grid {
    grid-template-columns: 1fr 1fr;
  }

  .searchbar,
  .action-row,
  .lane,
  .spec-row,
  .report-row {
    grid-template-columns: 1fr;
    display: grid;
  }

  .searchbar {
    min-width: 0;
  }

  .active-case {
    min-height: 0;
  }
}