:root {
  color-scheme: light;
  --bg: #f5f7f4;
  --paper: #ffffff;
  --ink: #121516;
  --muted: #64706d;
  --line: #d9dfdc;
  --line-strong: #a9b5b0;
  --floor: #0c8f7f;
  --floor-soft: rgba(12, 143, 127, 0.14);
  --ceiling: #cc463d;
  --ceiling-soft: rgba(204, 70, 61, 0.13);
  --gap: rgba(31, 78, 121, 0.12);
  --blue: #1f4e79;
  --shadow: 0 24px 80px rgba(18, 21, 22, 0.10);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(135deg, rgba(12, 143, 127, 0.08), transparent 26rem),
    linear-gradient(315deg, rgba(204, 70, 61, 0.08), transparent 28rem),
    var(--bg);
  color: var(--ink);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(18, 21, 22, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 21, 22, 0.035) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.75), transparent 75%);
}

a {
  color: inherit;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 68px;
  padding: 0 4vw;
  border-bottom: 1px solid rgba(18, 21, 22, 0.08);
  background: rgba(245, 247, 244, 0.88);
  backdrop-filter: blur(18px);
}

.brand,
.header-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand {
  text-decoration: none;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  width: 22px;
  height: 22px;
  border: 3px solid var(--ink);
  border-top-color: var(--ceiling);
  border-bottom-color: var(--floor);
  transform: rotate(45deg);
}

.header-links a {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 650;
  text-decoration: none;
}

main {
  position: relative;
  z-index: 1;
  width: min(1500px, 100%);
  margin: 0 auto;
  padding: 4.5rem 4vw 5rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.52fr);
  gap: 4rem;
  align-items: end;
  min-height: 36vh;
  padding-bottom: 3rem;
}

.eyebrow,
.panel-kicker,
.snapshot-status {
  margin: 0;
  color: var(--blue);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 12ch;
  margin: 0.65rem 0 1rem;
  font-size: clamp(3.2rem, 8vw, 8.6rem);
  line-height: 0.9;
  letter-spacing: 0;
}

.hero-lede {
  max-width: 58rem;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1.12rem, 1.8vw, 1.55rem);
  line-height: 1.45;
}

.hero-metrics {
  display: grid;
  gap: 1rem;
  padding: 1.2rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.hero-metrics div {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: 1.2rem;
}

.metric-label {
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 650;
}

.hero-metrics strong {
  font-family: "JetBrains Mono", monospace;
  font-size: clamp(1.35rem, 2.4vw, 2.1rem);
}

.control-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 0 0 1rem;
  padding: 0.7rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.62);
  box-shadow: 0 12px 48px rgba(18, 21, 22, 0.05);
}

.segmented {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.segment,
.month-button,
.collapse-control {
  border: 0;
  font: inherit;
}

.segment {
  min-height: 42px;
  padding: 0 1rem;
  background: transparent;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 750;
  cursor: pointer;
}

.segment.active {
  background: var(--ink);
  color: #fff;
}

.collapse-control {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  min-height: 42px;
  padding: 0 0.8rem;
  color: var(--ink);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
}

.collapse-control input {
  accent-color: var(--floor);
}

.workspace {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr) 360px;
  gap: 1rem;
  align-items: stretch;
}

.timeline-panel,
.main-stage,
.inspector {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.74);
  box-shadow: var(--shadow);
}

.timeline-panel,
.inspector {
  padding: 1rem;
}

.month-list {
  display: grid;
  gap: 0.55rem;
  margin-top: 1rem;
}

.month-button {
  display: grid;
  gap: 0.22rem;
  width: 100%;
  padding: 0.88rem 0.95rem;
  border-left: 3px solid transparent;
  background: rgba(18, 21, 22, 0.035);
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.month-button span {
  font-weight: 800;
}

.month-button small {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 650;
}

.month-button.active {
  border-left-color: var(--floor);
  background: var(--floor-soft);
}

.main-stage {
  min-height: 680px;
  padding: clamp(1.2rem, 2vw, 2rem);
}

.stage-heading {
  display: flex;
  justify-content: space-between;
  gap: 2rem;
  align-items: start;
  margin-bottom: 1.6rem;
}

.stage-heading h2 {
  margin: 0.35rem 0 0;
  font-size: clamp(1.9rem, 3.4vw, 3.4rem);
  line-height: 1;
  letter-spacing: 0;
}

.domain-description {
  max-width: 30rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.5;
}

.range-visual {
  position: relative;
  height: 430px;
  margin: 1.5rem 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    linear-gradient(to bottom, rgba(204, 70, 61, 0.10), transparent 28%),
    linear-gradient(to top, rgba(12, 143, 127, 0.11), transparent 32%),
    #fbfcfa;
}

.baseline-grid {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-rows: repeat(5, 1fr);
}

.baseline-grid span {
  border-top: 1px dashed rgba(18, 21, 22, 0.13);
}

.scale-label {
  position: absolute;
  right: 0.75rem;
  z-index: 2;
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
}

.scale-label-top {
  top: 0.7rem;
}

.scale-label-bottom {
  bottom: 0.7rem;
}

.gap-band {
  position: absolute;
  left: 0;
  right: 0;
  z-index: 1;
  background:
    repeating-linear-gradient(
      -45deg,
      var(--gap),
      var(--gap) 10px,
      rgba(31, 78, 121, 0.05) 10px,
      rgba(31, 78, 121, 0.05) 20px
    );
  transition: top 360ms ease, height 360ms ease;
}

.score-line {
  position: absolute;
  left: 0;
  right: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.3rem 0.8rem;
  border-top: 3px solid;
  transform: translateY(-50%);
  transition: top 360ms ease, opacity 260ms ease;
}

.score-line strong {
  min-width: 4.15rem;
  padding: 0.25rem 0.45rem;
  border: 1px solid rgba(18, 21, 22, 0.07);
  background: var(--paper);
  font-family: "JetBrains Mono", monospace;
  font-size: 1.2rem;
  text-align: right;
}

.line-label {
  padding: 0.35rem 0.55rem;
  color: #fff;
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.score-line strong,
.line-label {
  white-space: nowrap;
  transition: transform 260ms ease;
}

.range-visual.tight-gap .ceiling-line .line-label,
.range-visual.tight-gap .ceiling-line strong {
  transform: translateY(-1.1rem);
}

.range-visual.tight-gap .floor-line .line-label,
.range-visual.tight-gap .floor-line strong {
  transform: translateY(1.1rem);
}

.ceiling-line {
  border-color: var(--ceiling);
}

.ceiling-line .line-label {
  background: var(--ceiling);
}

.floor-line {
  border-color: var(--floor);
}

.floor-line .line-label {
  background: var(--floor);
}

.range-visual.collapsed .ceiling-line {
  opacity: 0.32;
}

.range-visual.collapsed .ceiling-line .line-label {
  background: var(--muted);
}

.snapshot-summary {
  max-width: 68rem;
  margin: 0;
  color: var(--ink);
  font-size: clamp(1.1rem, 1.5vw, 1.35rem);
  line-height: 1.5;
}

.inspector {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.inspector-section {
  display: grid;
  gap: 0.75rem;
}

.model-stack {
  display: grid;
  gap: 0.7rem;
}

.model-item {
  display: grid;
  gap: 0.7rem;
  min-width: 0;
  padding: 0.95rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.66);
}

.model-item > div {
  min-width: 0;
}

.model-item h3,
.model-item p {
  margin: 0;
}

.model-item h3 {
  font-size: 1rem;
}

.model-item p,
.model-item dd {
  color: var(--muted);
  overflow-wrap: anywhere;
}

.model-item dl {
  display: grid;
  gap: 0.35rem;
  margin: 0;
}

.model-item dl div {
  display: grid;
  grid-template-columns: minmax(5.25rem, auto) minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
}

.model-item dt {
  color: var(--ink);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.model-item dd {
  min-width: 0;
  margin: 0;
  text-align: right;
  font-size: 0.8rem;
}

.model-item a {
  color: var(--blue);
  font-size: 0.86rem;
  font-weight: 800;
  text-decoration: none;
}

.model-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.inspector-note {
  padding: 1rem;
  border-left: 3px solid var(--blue);
  background: rgba(31, 78, 121, 0.08);
  color: var(--muted);
  line-height: 1.5;
}

.archive,
.sources {
  margin-top: 5rem;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 1.5rem;
}

.section-heading h2 {
  margin: 0.4rem 0 0.45rem;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1;
  letter-spacing: 0;
}

.section-heading p:last-child {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.archive-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.76);
}

.archive-table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
}

.archive-table th,
.archive-table td {
  padding: 1rem;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.archive-table th {
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.76rem;
  text-transform: uppercase;
}

.archive-table td {
  line-height: 1.45;
}

.source-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.source-link {
  display: grid;
  gap: 0.45rem;
  min-height: 180px;
  padding: 1rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease;
}

.source-link:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
}

.source-link span {
  width: fit-content;
  padding: 0.24rem 0.45rem;
  color: #fff;
  font-size: 0.74rem;
  font-weight: 850;
  text-transform: uppercase;
}

.source-link.floor span {
  background: var(--floor);
}

.source-link.ceiling span {
  background: var(--ceiling);
}

.source-link strong {
  font-size: 1.18rem;
}

.source-link small {
  align-self: end;
  color: var(--muted);
  line-height: 1.35;
}

.site-embed-mode body {
  background: var(--bg);
}

.site-embed-mode .app-header {
  display: none;
}

.site-embed-mode main {
  padding-top: 2rem;
}

@media (max-width: 1180px) {
  .workspace {
    grid-template-columns: 220px minmax(0, 1fr);
  }

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

  .inspector-note {
    grid-column: 1 / -1;
  }

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

@media (max-width: 760px) {
  .app-header,
  .control-strip,
  .stage-heading,
  .hero {
    align-items: stretch;
    flex-direction: column;
  }

  .app-header {
    position: static;
    padding: 1rem 4vw;
  }

  .header-links {
    width: 100%;
    justify-content: space-between;
  }

  main {
    padding-top: 2.5rem;
  }

  .hero,
  .workspace,
  .inspector,
  .stage-heading {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 2rem;
  }

  .hero h1 {
    font-size: clamp(3rem, 17vw, 5rem);
  }

  .control-strip {
    display: grid;
  }

  .segment {
    flex: 1 1 auto;
  }

  .main-stage {
    min-height: auto;
  }

  .range-visual {
    height: 360px;
  }

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