:root {
  color-scheme: dark;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: #111316;
  color: #eef2f3;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #111316;
}

button,
input,
select {
  font: inherit;
}

.shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto auto auto auto;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid #2a3035;
  background: #171a1f;
}

.brand {
  font-weight: 700;
  letter-spacing: 0;
}

.toolbar button,
.file-button,
.toolbar select {
  min-height: 34px;
  border: 1px solid #3a424a;
  border-radius: 6px;
  background: #20262d;
  color: #eef2f3;
  padding: 0 10px;
}

.file-button {
  display: inline-grid;
  place-items: center;
  cursor: pointer;
}

.file-button input {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  pointer-events: none;
}

.budget-control {
  display: inline-grid;
  grid-template-columns: auto 120px;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  color: #cbd5dc;
}

.budget-control input {
  accent-color: #7dd3c7;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(280px, 340px);
  gap: 1px;
  background: #2a3035;
}

.pane {
  min-width: 0;
  background: #15181d;
  padding: 16px;
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 12px;
}

.diagnostics-pane {
  grid-template-rows: auto repeat(3, minmax(0, auto));
}

.pane h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 650;
}

.viewport {
  min-height: min(58vh, 620px);
  border: 1px solid #323941;
  border-radius: 6px;
  background:
    linear-gradient(45deg, #181c20 25%, transparent 25%),
    linear-gradient(-45deg, #181c20 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #181c20 75%),
    linear-gradient(-45deg, transparent 75%, #181c20 75%);
  background-color: #111316;
  background-size: 24px 24px;
  background-position: 0 0, 0 12px, 12px -12px, -12px 0;
  display: grid;
  place-items: center;
  color: #8fa0ad;
  text-align: center;
  padding: 20px;
}

.viewport canvas,
.mini-viewport canvas,
.chart-viewport canvas {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  image-rendering: auto;
  border-radius: 4px;
  box-shadow: 0 0 0 1px #252b31;
}

#original-canvas {
  cursor: crosshair;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(180px, 1fr));
  gap: 0 18px;
}

.metric {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid #2a3035;
  color: #cbd5dc;
}

.metric strong {
  color: #eef2f3;
  font-variant-numeric: tabular-nums;
}

.diff-panel {
  display: grid;
  gap: 10px;
  margin-top: 8px;
}

.mini-viewport {
  min-height: 160px;
  border: 1px solid #323941;
  border-radius: 6px;
  background: #111316;
  display: grid;
  place-items: center;
  padding: 10px;
}

.chart-viewport {
  min-height: 180px;
  border: 1px solid #323941;
  border-radius: 6px;
  background: #111316;
  display: grid;
  place-items: center;
  padding: 10px;
}

.analysis-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: #2a3035;
  border-top: 1px solid #2a3035;
}

.analysis-panel {
  min-width: 0;
  background: #15181d;
  padding: 16px;
}

.analysis-panel h2 {
  margin: 0 0 12px;
  font-size: 15px;
  font-weight: 650;
}

.metrics-panel {
  padding-bottom: 8px;
}

.comparison-table {
  overflow-x: auto;
  border: 1px solid #323941;
  border-radius: 6px;
  background: #111316;
}

.table-note {
  margin: 8px 9px 0;
  color: #9aa7b0;
  font-size: 12px;
}

.comparison-table table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}

.comparison-table th,
.comparison-table td {
  padding: 8px 9px;
  border-bottom: 1px solid #252b31;
  text-align: right;
  white-space: nowrap;
}

.comparison-table th:first-child,
.comparison-table td:first-child {
  text-align: left;
}

.comparison-table th {
  color: #9fb0bc;
  font-weight: 650;
  background: #171b20;
}

.comparison-table td {
  color: #eef2f3;
  font-variant-numeric: tabular-nums;
}

.footer {
  padding: 10px 16px;
  border-top: 1px solid #2a3035;
  color: #8fa0ad;
  background: #171a1f;
  font-size: 13px;
}

@media (max-width: 900px) {
  .toolbar {
    flex-wrap: wrap;
  }

  .workspace {
    grid-template-columns: 1fr;
  }

  .viewport {
    min-height: 240px;
  }

  .metrics {
    grid-template-columns: 1fr;
  }
}