:root {
  --bg: #f1f7ff;
  --bg-deep: #d9ecff;
  --text: #10233e;
  --muted: #3f5676;
  --accent: #0077d6;
  --accent-strong: #0055a6;
  --accent-soft: #deefff;
  --border: #bfd6f4;
  --surface: rgba(255, 255, 255, 0.76);
  --surface-strong: #ffffff;
  --surface-soft: #f6fbff;
  --code-bg: #eef6ff;
  --ok: #00703c;
  --warn: #a15a00;
}

:root[data-theme="dark"] {
  --bg: #050b17;
  --bg-deep: #07172e;
  --text: #e8f0ff;
  --muted: #a1b7d8;
  --accent: #62b6ff;
  --accent-strong: #3e95e0;
  --accent-soft: #0f2d4a;
  --border: #244464;
  --surface: rgba(10, 22, 42, 0.78);
  --surface-strong: #0f1f38;
  --surface-soft: #0d1a2f;
  --code-bg: #0b1a2f;
  --ok: #4cd596;
  --warn: #f2bc5f;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Source Sans 3", "Segoe UI", sans-serif;
  color: var(--text);
  line-height: 1.62;
  background:
    radial-gradient(980px 560px at -6% -12%, #d6ebff 0%, transparent 66%),
    radial-gradient(860px 500px at 102% 5%, #d0f5ff 0%, transparent 62%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
}

.container {
  width: min(1160px, 94vw);
  margin: 0 auto;
  padding: 24px 0 72px;
}

.site-header {
  position: sticky;
  top: 10px;
  z-index: 30;
  display: grid;
  gap: 10px;
  padding: 13px 14px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(8px);
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.eyebrow {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.site-nav a {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-strong);
  color: var(--text);
  text-decoration: none;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 600;
}

.site-nav a:hover {
  border-color: var(--accent);
}

.site-nav a.active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}

.theme-toggle {
  border: 1px solid var(--border);
  background: var(--surface-strong);
  color: var(--text);
  border-radius: 10px;
  padding: 7px 12px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
}

.hero,
.flow {
  margin-top: 24px;
  padding: 22px 22px 18px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.hero {
  background:
    linear-gradient(130deg, color-mix(in oklab, var(--accent-soft) 42%, transparent) 0%, transparent 64%),
    var(--surface);
}

h1,
h2,
h3 {
  font-family: "Source Serif 4", Georgia, serif;
  letter-spacing: 0.01em;
}

h1 {
  margin: 0;
  font-size: clamp(2rem, 4.1vw, 3.15rem);
  line-height: 1.08;
  max-width: 21ch;
}

h2 {
  margin: 0 0 10px;
  font-size: clamp(1.6rem, 2.7vw, 2.2rem);
  line-height: 1.18;
}

h3 {
  margin: 20px 0 8px;
  font-size: 1.28rem;
}

.hero-kicker {
  margin: 0 0 9px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 12px;
}

.hero-copy,
.section-text {
  margin: 12px 0 0;
  color: var(--muted);
  max-width: 82ch;
  font-size: 1.02rem;
}

.hero-cta {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.cta {
  border: 1px solid var(--border);
  border-radius: 11px;
  padding: 9px 14px;
  text-decoration: none;
  color: var(--text);
  background: var(--surface-strong);
  font-weight: 700;
}

.cta.primary {
  border-color: var(--accent-strong);
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
}

.pill-row {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.pill {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 12px;
  background: var(--surface-strong);
  color: var(--muted);
  font-size: 13px;
}

.status {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
}

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

ul,
ol {
  padding-left: 20px;
}

.downloads li,
.asset-list li {
  margin: 6px 0;
}

.kpi-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.kpi {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  background: var(--surface-strong);
}

.kpi .label {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.kpi .value {
  margin: 6px 0 0;
  font-size: 22px;
  font-weight: 700;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface-strong);
}

th,
td {
  text-align: left;
  border-bottom: 1px solid var(--border);
  padding: 8px 10px;
  font-size: 14px;
}

th {
  color: var(--muted);
  font-weight: 700;
  background: var(--surface-soft);
}

.chart-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.chart-grid-wide {
  grid-template-columns: 1fr;
}

figure {
  margin: 0;
}

figure img {
  width: 100%;
  display: block;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface-strong);
}

figcaption {
  margin-top: 7px;
  color: var(--muted);
  font-size: 14px;
}

pre {
  margin: 10px 0 0;
  padding: 12px;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--code-bg);
}

code {
  font-family: "IBM Plex Mono", "SFMono-Regular", Menlo, monospace;
}

@media (max-width: 900px) {
  .container {
    width: min(100%, 96vw);
    padding-top: 12px;
  }

  .site-header {
    top: 0;
    border-radius: 12px;
  }

  .hero,
  .flow {
    padding: 18px 14px 14px;
    border-radius: 14px;
  }

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

  table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
}