:root {
  color-scheme: light;
  --bg: #f4f6f1;
  --panel: #ffffff;
  --ink: #1e2524;
  --muted: #64706b;
  --line: #d9dfd7;
  --green: #2f614c;
  --green-2: #dce9df;
  --clay: #b36a46;
  --amber: #e7bd68;
  --red: #9c3f35;
  --blue: #526c91;
  --shadow: 0 16px 40px rgba(31, 42, 37, 0.09);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--ink);
}

button,
input,
select {
  font: inherit;
}

a {
  color: var(--green);
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

.app-shell {
  width: min(1480px, 100%);
  margin: 0 auto;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  padding: 8px 0 20px;
}

.eyebrow,
.mini-label,
.summary-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(1.9rem, 3.5vw, 3.25rem);
  line-height: 1.02;
}

h2 {
  font-size: 1rem;
}

.source-chip {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--muted);
  font-size: 0.9rem;
  white-space: nowrap;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.summary-tile {
  min-height: 104px;
  display: grid;
  align-content: center;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.summary-tile strong {
  font-size: clamp(1.55rem, 2.8vw, 2.45rem);
  line-height: 1;
}

.summary-tile.total {
  background: #21352d;
  color: #fff;
}

.summary-tile.total .summary-label {
  color: #cbd8ce;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(310px, 400px) minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.controls-panel,
.results-panel {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.controls-panel {
  position: sticky;
  top: 16px;
  overflow: hidden;
}

.control-block {
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

.control-block:last-child {
  border-bottom: 0;
}

.control-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

summary.control-heading {
  cursor: pointer;
  list-style: none;
}

summary.control-heading::-webkit-details-marker {
  display: none;
}

summary.control-heading::after {
  content: "+";
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--green);
  font-weight: 900;
}

.collapsible-control[open] > summary.control-heading::after {
  content: "-";
}

.collapsible-control:not([open]) > summary.control-heading {
  margin-bottom: 0;
}

.control-heading span {
  color: var(--muted);
  font-size: 0.86rem;
}

label {
  display: block;
  margin: 12px 0 7px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

select,
input[type="number"] {
  width: 100%;
  min-width: 0;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fbfcfa;
  color: var(--ink);
  padding: 8px 10px;
}

.inline-field {
  display: grid;
  grid-template-columns: 1fr 120px;
  gap: 12px;
  align-items: end;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #eef2ec;
}

.segment {
  min-height: 36px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.segment.is-active {
  background: var(--panel);
  color: var(--ink);
  box-shadow: 0 2px 8px rgba(31, 42, 37, 0.08);
}

.option-list,
.work-list,
.breakdown-list {
  display: grid;
  gap: 10px;
}

.check-row,
.work-row,
.breakdown-row {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  gap: 10px;
  align-items: center;
  min-height: 42px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
}

.check-row input[type="checkbox"],
.work-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--green);
}

.check-row span,
.work-row span,
.breakdown-row span {
  min-width: 0;
}

.work-row {
  grid-template-columns: 22px 1fr 98px;
}

.work-row small,
.check-row small {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 0.76rem;
}

.work-row input[type="number"] {
  min-height: 34px;
  padding: 6px 8px;
}

.results-panel {
  padding: 18px;
}

.decision-strip {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: center;
  padding: 14px;
  border-radius: 8px;
  background: #eef4ee;
  border: 1px solid #cadbcd;
}

.decision-strip strong {
  display: block;
  margin-top: 4px;
  font-size: 1.08rem;
}

.visual-row {
  display: grid;
  grid-template-columns: minmax(260px, 380px) minmax(0, 1fr);
  gap: 12px;
  margin: 12px 0;
}

.plan-view,
.chart-panel,
.source-panel,
.breakdown-grid > div {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
}

.plan-view {
  min-height: 242px;
  display: grid;
  place-items: center;
  overflow: hidden;
}

.plan-view svg {
  width: 100%;
  height: auto;
  display: block;
}

.plan-view text {
  fill: var(--ink);
  font-size: 14px;
  font-weight: 800;
}

.chart-panel {
  display: grid;
  gap: 14px;
  align-content: center;
  padding: 18px;
  min-height: 242px;
}

.chart-row {
  display: grid;
  grid-template-columns: 84px minmax(100px, 1fr) 86px;
  gap: 10px;
  align-items: center;
  font-size: 0.92rem;
}

.bar-track {
  height: 18px;
  border-radius: 4px;
  background: #e6ebe5;
  overflow: hidden;
}

.bar {
  width: 0;
  height: 100%;
  min-width: 2px;
  transition: width 160ms ease;
}

.bar.shell {
  background: var(--green);
}

.bar.works {
  background: var(--clay);
}

.bar.annual {
  background: var(--blue);
}

.breakdown-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 12px;
}

.breakdown-grid > div {
  padding: 16px;
}

.breakdown-grid h2,
.source-panel h2 {
  margin-bottom: 12px;
}

.breakdown-row {
  grid-template-columns: 1fr auto;
}

.breakdown-row strong,
.check-row strong,
.chart-row strong {
  white-space: nowrap;
}

.breakdown-row small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 600;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th,
td {
  padding: 11px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0;
}

td:last-child,
td:nth-child(2),
th:last-child,
th:nth-child(2) {
  text-align: right;
  white-space: nowrap;
}

.source-panel {
  margin-top: 12px;
  padding: 16px;
}

.source-panel ul {
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.source-panel li {
  margin: 8px 0;
}

.source-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 14px;
}

.self-build-section,
.research-grid,
.lookbook-section {
  margin-top: 12px;
}

.self-build-section,
.lookbook-section,
.research-grid > div {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfa;
  padding: 16px;
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(260px, 1fr);
  gap: 18px;
  align-items: end;
  margin-bottom: 14px;
}

.section-heading p,
.research-grid p,
.build-card p,
.lookbook-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.section-heading h2,
.research-grid h2,
.lookbook-card h3,
.build-card h3 {
  margin: 3px 0 0;
}

.build-step-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.build-card {
  min-width: 0;
  min-height: 286px;
  display: grid;
  align-content: start;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.build-card.is-selected {
  border-color: #8fb79f;
  background: #f0f7f1;
}

.build-card-head,
.step-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.stage-pill {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  padding: 0 8px;
  border-radius: 6px;
  background: #eef2ec;
  color: var(--green);
  font-size: 0.76rem;
  font-weight: 800;
}

.step-note {
  padding: 9px;
  border-left: 3px solid var(--clay);
  background: #fff6ee;
}

.material-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.material-list li {
  padding: 5px 7px;
  border: 1px solid #dfe6de;
  border-radius: 6px;
  background: #f8faf7;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.step-actions {
  align-self: end;
  margin-top: auto;
  padding-top: 4px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.step-actions button {
  min-width: 82px;
  min-height: 34px;
  border: 1px solid var(--green);
  border-radius: 6px;
  background: var(--green);
  color: #fff;
  cursor: pointer;
  font-weight: 800;
}

.build-card.is-selected .step-actions button {
  background: #ffffff;
  color: var(--green);
}

.research-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.research-list {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.research-note {
  display: grid;
  gap: 5px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  color: inherit;
  text-decoration: none;
}

.research-note:hover {
  border-color: #9ab9a7;
}

.research-note span {
  color: var(--muted);
  line-height: 1.45;
}

.lookbook-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.lookbook-card {
  min-width: 0;
  display: grid;
  grid-template-columns: 112px 1fr;
  gap: 12px;
  min-height: 132px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.lookbook-card.is-selected {
  border-color: #c8966c;
  background: #fff8f0;
}

.visual-placeholder {
  min-height: 112px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  background:
    linear-gradient(135deg, rgba(47, 97, 76, 0.14), rgba(179, 106, 70, 0.16)),
    repeating-linear-gradient(90deg, #eef2ec 0, #eef2ec 9px, #f8faf7 9px, #f8faf7 18px);
  border: 1px dashed #bcc9be;
}

.visual-placeholder span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background: #ffffff;
  color: var(--green);
  font-weight: 900;
}

@media (max-width: 1060px) {
  .workspace,
  .visual-row,
  .breakdown-grid,
  .research-grid,
  .section-heading {
    grid-template-columns: 1fr;
  }

  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .controls-panel {
    position: static;
  }

  .build-step-grid,
  .lookbook-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .app-shell {
    padding: 10px;
  }

  .topbar,
  .decision-strip {
    align-items: stretch;
    flex-direction: column;
    display: flex;
  }

  .topbar {
    gap: 12px;
    padding-bottom: 12px;
  }

  h1 {
    font-size: 1.85rem;
  }

  .source-chip {
    width: 100%;
    min-height: 34px;
    font-size: 0.84rem;
  }

  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .summary-tile {
    min-height: 78px;
    padding: 13px;
    gap: 6px;
  }

  .summary-label {
    font-size: 0.68rem;
  }

  .summary-tile strong {
    font-size: 1.5rem;
  }

  .workspace {
    gap: 10px;
  }

  .control-block,
  .results-panel,
  .breakdown-grid > div,
  .source-panel,
  .self-build-section,
  .lookbook-section,
  .research-grid > div {
    padding: 14px;
  }

  .control-heading {
    margin-bottom: 12px;
  }

  .collapsible-control:not([open]) {
    padding-top: 14px;
    padding-bottom: 14px;
  }

  .inline-field {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .segmented {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .segment {
    min-height: 44px;
    padding: 0 4px;
    font-size: 0.92rem;
  }

  .decision-strip {
    gap: 10px;
    padding: 12px;
  }

  .visual-row {
    gap: 8px;
    margin: 8px 0;
  }

  .plan-view,
  .chart-panel {
    min-height: 0;
  }

  .chart-panel {
    gap: 12px;
    padding: 14px;
  }

  .chart-row {
    grid-template-columns: 62px minmax(0, 1fr) auto;
    gap: 8px;
    font-size: 0.84rem;
  }

  .bar-track {
    height: 14px;
  }

  .build-step-grid,
  .lookbook-grid {
    grid-template-columns: 1fr;
  }

  .lookbook-card {
    grid-template-columns: 1fr;
  }

  .build-card {
    min-height: 0;
    padding: 12px;
  }

  .build-card-head,
  .step-actions {
    align-items: start;
  }

  .step-actions {
    display: grid;
    grid-template-columns: 1fr auto;
  }

  .step-actions button {
    min-height: 40px;
  }

  .material-list li {
    font-size: 0.72rem;
  }

  .work-row {
    grid-template-columns: 22px 1fr;
  }

  .work-row input[type="number"] {
    grid-column: 2;
  }

  td:last-child,
  td:nth-child(2),
  th:last-child,
  th:nth-child(2) {
    text-align: left;
  }
}