:root {
  color-scheme: dark;
  --bg: #111318;
  --panel: #191d25;
  --panel-2: #202631;
  --text: #edf2f7;
  --muted: #9aa7b8;
  --line: #343d4d;
  --accent: #f59e0b;
  --green: #22c55e;
  --red: #ef4444;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell {
  width: min(1280px, 100%);
  margin: 0 auto;
  padding: 28px;
}

.hero,
.metrics,
.grid,
.detail-grid,
.sim-metrics,
.section-head {
  display: grid;
  gap: 18px;
}

.hero {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  padding: 28px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, #1c212b, #12151b);
  border-radius: 8px;
}

.eyebrow,
.section-head span,
.note,
.muted {
  color: var(--muted);
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: 42px;
  line-height: 1;
}

h2 {
  font-size: 21px;
}

h3 {
  margin-bottom: 8px;
  font-size: 13px;
  color: #cbd5e1;
  text-transform: uppercase;
  letter-spacing: 0;
}

p {
  line-height: 1.55;
}

.lead {
  margin-top: 16px;
  max-width: 820px;
  color: #cbd5e1;
  font-size: 17px;
}

.tagbox {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.tagbox span {
  border: 1px solid #4b5563;
  border-radius: 999px;
  padding: 8px 10px;
  color: #f8fafc;
  background: rgba(245, 158, 11, 0.08);
  font-size: 13px;
}

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

.metrics div,
.sim-metrics div {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.metrics strong,
.sim-metrics strong {
  display: block;
  font-size: 30px;
}

.metrics span,
.sim-metrics span {
  color: var(--muted);
  font-size: 13px;
}

.grid {
  grid-template-columns: 360px minmax(0, 1fr);
  margin-top: 18px;
}

.grid.two {
  grid-template-columns: minmax(0, 1.2fr) minmax(360px, 0.8fr);
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 20px;
}

.timeline {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 4px 10px;
  width: 100%;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: var(--panel-2);
  text-align: left;
  cursor: pointer;
}

.timeline-item span {
  grid-row: span 2;
  color: var(--accent);
  font-weight: 700;
}

.timeline-item small {
  color: var(--muted);
}

.timeline-item.active {
  border-color: var(--accent);
  background: #2b2417;
}

.detail-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 20px 0;
}

.detail-grid > div {
  min-height: 128px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
}

.score-rows {
  display: grid;
  gap: 10px;
}

.score-row {
  display: grid;
  grid-template-columns: 170px 48px 1fr;
  align-items: center;
  gap: 10px;
}

.score-row span {
  color: var(--muted);
  text-transform: capitalize;
}

.score-row i {
  display: block;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent) calc(var(--value) * 100%), #303744 0);
}

.section-head {
  grid-template-columns: 1fr auto;
  align-items: center;
  margin-bottom: 16px;
}

label {
  display: flex;
  justify-content: space-between;
  margin-top: 14px;
  color: #cbd5e1;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

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

.sim-metrics strong {
  font-size: 21px;
}

.chart svg {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
}

.matrix {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}

.matrix-cell {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 6px;
  background: color-mix(in srgb, #111827 calc(100% - var(--distance) * 120%), #f59e0b);
  border: 1px solid var(--line);
  font-size: 12px;
}

textarea {
  width: 100%;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  color: var(--text);
  background: #10141b;
  font: 14px/1.5 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.note {
  margin-top: 14px;
  font-size: 13px;
}

@media (max-width: 920px) {
  .shell {
    padding: 14px;
  }

  .hero,
  .grid,
  .grid.two,
  .detail-grid,
  .metrics,
  .sim-metrics {
    grid-template-columns: 1fr;
  }

  .tagbox {
    justify-content: flex-start;
  }

  h1 {
    font-size: 34px;
  }
}