:root {
  --bg: #f6f0e4;
  --bg-2: #ede3cf;
  --surface: rgba(255, 251, 244, 0.86);
  --surface-strong: #fffaf2;
  --text: #1f2328;
  --muted: #5d6874;
  --line: rgba(31, 35, 40, 0.1);
  --ink: #12343b;
  --accent: #c65d26;
  --accent-soft: #e8c89a;
  --shadow: 0 24px 54px rgba(37, 27, 15, 0.08);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "IBM Plex Sans", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(198, 93, 38, 0.15), transparent 30%),
    radial-gradient(circle at top right, rgba(18, 52, 59, 0.12), transparent 28%),
    linear-gradient(180deg, #fcf6ea 0%, var(--bg) 45%, #efe5d4 100%);
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: var(--ink);
}

.hero,
.section,
.footer {
  padding-left: 24px;
  padding-right: 24px;
}

.nav,
.hero-grid,
.section > *,
.footer {
  width: min(100%, var(--max-width));
  margin: 0 auto;
}

.brand,
h1,
h2,
h3,
strong,
th {
  font-family: "Space Grotesk", sans-serif;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding-top: 24px;
}

.brand {
  font-size: 1rem;
  font-weight: 700;
}

.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  padding-bottom: 2px;
}

.nav-links a.active {
  color: var(--ink);
  border-bottom: 2px solid var(--accent);
}

.hero {
  padding-bottom: 52px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  padding-top: 44px;
}

.hero-copy,
.hero-panel,
.feature-card,
.panel,
.diagram-card,
.footer {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.hero-copy,
.hero-panel,
.panel,
.feature-card,
.diagram-card {
  padding: 26px;
}

.hero-panel {
  display: grid;
  gap: 16px;
  align-content: start;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: clamp(2.8rem, 6vw, 4.9rem);
  line-height: 0.98;
}

h2 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3rem);
}

h3 {
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 1.15rem;
}

.lede,
.feature-card p,
.status-card p,
.section-note,
.panel-subtitle,
.footer,
table,
td {
  color: var(--muted);
  line-height: 1.7;
}

.cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
}

.button.primary {
  color: #fff8ef;
  background: var(--ink);
}

.button.secondary {
  border: 1px solid rgba(18, 52, 59, 0.16);
  background: transparent;
}

.status-card {
  padding: 18px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(18, 52, 59, 0.08);
  border-radius: var(--radius-lg);
}

.status-label {
  display: block;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.status-card strong {
  display: block;
  margin-top: 8px;
  font-size: 1.15rem;
}

.section {
  padding-top: 24px;
  padding-bottom: 24px;
}

.section-heading {
  margin-bottom: 18px;
}

.section-heading.split {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
}

.feature-grid,
.viz-grid,
.kpi-grid,
.model-grid {
  display: grid;
  gap: 18px;
}

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

.dashboard-intro,
.insight-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 18px;
}

.dashboard-section {
  scroll-margin-top: 18px;
}

.filter-bar {
  display: grid;
  grid-template-columns: 1fr 1fr 0.9fr;
  gap: 12px;
  margin-bottom: 18px;
}

.filter-block {
  padding: 16px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(18, 52, 59, 0.08);
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-label {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.filter-summary {
  color: var(--ink);
  font-weight: 700;
  margin-bottom: 12px;
}

.reset-chip {
  width: 100%;
}

.filter-chip {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(18, 52, 59, 0.16);
  background: rgba(255, 255, 255, 0.82);
  color: var(--ink);
  font-weight: 600;
  cursor: pointer;
}

.filter-chip.active {
  background: var(--ink);
  color: #fff8ef;
}

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

.kpi-card {
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.kpi-card span {
  color: var(--muted);
  display: block;
}

.kpi-card strong {
  display: block;
  margin-top: 10px;
  font-size: 2rem;
}

.viz-grid {
  grid-template-columns: 1fr 1fr;
  margin-bottom: 18px;
}

.viz-grid-top {
  grid-template-columns: 1.3fr 0.7fr;
}

.viz-grid-bottom {
  grid-template-columns: 1.2fr 0.8fr;
}

.metric-stack {
  display: grid;
  gap: 12px;
}

.metric-card {
  padding: 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(18, 52, 59, 0.08);
}

.metric-card span {
  display: block;
  color: var(--muted);
}

.metric-card strong {
  display: block;
  margin-top: 8px;
  font-size: 1.7rem;
}

.insight-note {
  padding: 18px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(18, 52, 59, 0.08);
}

.insight-note span {
  display: block;
  margin-bottom: 8px;
  color: var(--accent);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
}

.insight-note strong {
  font-size: 1rem;
  line-height: 1.6;
}

.panel-wide {
  min-width: 0;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 14px;
}

.figure-note {
  margin: 14px 0 0;
  font-size: 0.92rem;
  color: var(--muted);
}

.figure-note strong {
  color: var(--ink);
}

.source-link {
  margin-top: 12px;
  font-size: 0.92rem;
}

.source-link a {
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.bar-chart {
  display: grid;
  gap: 12px;
}

.bar-row {
  display: grid;
  grid-template-columns: minmax(120px, 1.4fr) 2.5fr auto;
  gap: 10px;
  align-items: center;
}

.bar-label,
.bar-value {
  font-size: 0.94rem;
}

.bar-track {
  height: 12px;
  border-radius: 999px;
  background: rgba(18, 52, 59, 0.08);
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--ink), var(--accent));
}

.svg-shell {
  width: 100%;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.66);
  padding: 8px;
}

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

.donut-wrap {
  display: grid;
  gap: 16px;
  justify-items: center;
}

.donut {
  width: 190px;
  height: 190px;
  border-radius: 50%;
  position: relative;
}

.donut-center {
  position: absolute;
  inset: 22%;
  display: grid;
  place-items: center;
  background: var(--surface-strong);
  border-radius: 50%;
  text-align: center;
}

.donut-center strong {
  font-size: 2rem;
}

.legend {
  width: 100%;
  display: grid;
  gap: 10px;
}

.legend-item {
  display: grid;
  grid-template-columns: 14px 1fr auto;
  gap: 10px;
  align-items: center;
}

.legend-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
}

.health-grid {
  display: grid;
  gap: 16px;
}

.health-tiles {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 6px;
}

.health-tile {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 6px;
  display: block;
}

.health-key {
  display: grid;
  gap: 10px;
}

.table-panel {
  overflow: hidden;
}

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

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid rgba(31, 35, 40, 0.08);
}

th {
  color: var(--text);
}

.model-grid {
  grid-template-columns: 1.1fr 0.9fr;
}

.feature-stack {
  display: grid;
  gap: 18px;
}

.footer {
  margin-top: 20px;
  margin-bottom: 28px;
}

@media (max-width: 980px) {
  .hero-grid,
  .feature-grid,
  .dashboard-intro,
  .insight-summary,
  .viz-grid,
  .viz-grid-top,
  .viz-grid-bottom,
  .model-grid,
  .kpi-grid,
  .filter-bar {
    grid-template-columns: 1fr;
  }

  .section-heading.split,
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .hero,
  .section,
  .footer {
    padding-left: 16px;
    padding-right: 16px;
  }

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

.code-stack {
  display: grid;
  gap: 18px;
}

.code-panel {
  scroll-margin-top: 24px;
}

.code-block {
  margin: 0;
  padding: 18px;
  overflow-x: auto;
  border-radius: var(--radius-md);
  background: rgba(18, 52, 59, 0.94);
  color: #f7f1e6;
  font-size: 0.92rem;
  line-height: 1.65;
}

.code-block code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}