:root {
  --bg: #0b100e;
  --ink: #e7eee6;
  --muted: #8b978c;
  --line: #24302a;
  --accent: #c6f04d;
  --card: #121915;
  --serif: "IBM Plex Serif", Georgia, serif;
  --sans: "IBM Plex Sans", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
}

#net {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.35;
}

.top, main, footer { position: relative; z-index: 1; }

.top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 6vw;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  position: sticky;
  top: 0;
}

.mark {
  font-family: var(--serif);
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.12em;
  font-weight: 600;
}

nav { display: flex; gap: 1.25rem; }
nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.92rem;
}
nav a:hover { color: var(--ink); }

main { padding: 0 6vw 5rem; max-width: 1100px; }

.hero { padding: 5.5rem 0 3.5rem; max-width: 42rem; }

.kicker {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.72rem;
  color: var(--accent);
  margin: 0 0 0.8rem;
}

h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.15; }
h1 { font-size: clamp(2.4rem, 5vw, 4.1rem); margin: 0 0 0.8rem; }
h2 { font-size: 1.85rem; margin: 0 0 1.4rem; }
h3 { font-size: 1.25rem; margin: 0.2rem 0 0.6rem; }

.lede {
  font-size: 1.2rem;
  color: var(--accent);
  margin: 0 0 1.1rem;
}

.bio { color: #c5d0c4; margin: 0 0 1.8rem; }
.bio strong { color: var(--ink); font-weight: 600; }
.bio a, .kicker a { color: var(--accent); }

.hero-links, .footer-links { display: flex; gap: 0.7rem; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  background: var(--accent);
  color: #111;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
}
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn.ghost:hover { border-color: var(--accent); color: var(--accent); }

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin: 0 0 4.5rem;
  padding: 1.4rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.stats .n {
  font-family: var(--serif);
  font-size: 2rem;
  color: var(--accent);
  margin: 0 0 0.35rem;
}
.stats p { margin: 0; color: var(--muted); font-size: 0.95rem; }

section { margin-bottom: 4.5rem; }
section[id], .page { scroll-margin-top: 4.6rem; }

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 1.35rem 1.4rem 1.25rem;
  border-radius: 12px;
}
.card p { margin: 0 0 0.9rem; color: #c5d0c4; }
.tag {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 0.45rem !important;
}
.card a { color: var(--accent); }
.muted { color: var(--muted); font-size: 0.9rem; }

.chips {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 0;
}
.chips li {
  border: 1px solid var(--line);
  padding: 0.35rem 0.7rem;
  border-radius: 999px;
  font-size: 0.9rem;
  color: #d5ddd4;
}

.about { max-width: 40rem; }
.edu { padding-left: 1.1rem; color: #c5d0c4; }
.edu strong { color: var(--ink); }

footer {
  padding: 1.5rem 6vw 2.2rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
footer a { color: var(--ink); }

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

.page { padding-top: 3.2rem; max-width: 1100px; }
.page h1 { margin-bottom: 0.6rem; }

.split {
  display: grid;
  gap: 1.2rem;
  margin: 2rem 0 1.4rem;
}
@media (min-width: 860px) {
  .split { grid-template-columns: 1fr 1fr; align-items: start; }
}

.facts {
  margin: 0;
  padding-left: 1.15rem;
  color: #c5d0c4;
}
.facts li + li { margin-top: 0.45rem; }
.facts code, .note code {
  font-size: 0.88em;
  color: var(--accent);
}

.note { color: var(--muted); font-size: 0.95rem; }

.mock {
  margin: 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.1rem 1.15rem 1rem;
}
.mock figcaption {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.85rem;
}

.bubble {
  border-radius: 10px;
  padding: 0.7rem 0.85rem;
  margin-bottom: 0.55rem;
  font-size: 0.95rem;
  color: var(--ink);
}
.bubble.user {
  background: #1c2a22;
  margin-left: 12%;
}
.bubble.bot {
  background: #151d18;
  margin-right: 8%;
  border-left: 3px solid var(--accent);
}

.kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-bottom: 0.9rem;
}
.kpis div {
  background: #0f1612;
  border-radius: 8px;
  padding: 0.55rem 0.6rem;
}
.kpis span { display: block; font-size: 0.72rem; color: var(--muted); }
.kpis strong { font-size: 1.25rem; color: var(--accent); }

.squad {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}
.squad li {
  display: grid;
  grid-template-columns: 5.2rem 1fr auto;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.9rem;
}
.bar {
  display: block;
  height: 0.5rem;
  background: #24302a;
  border-radius: 99px;
  position: relative;
}
.bar::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--p);
  background: var(--accent);
  border-radius: inherit;
}
.squad em {
  font-style: normal;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
  min-width: 2.4rem;
  text-align: right;
}

.sankey-panel {
  margin: 1.6rem 0;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.2rem 1.15rem 1rem;
}
.sankey-panel figcaption {
  font-family: var(--serif);
  font-size: 1.2rem;
  margin-bottom: 0.35rem;
}
.sankey-takeaway { margin: 0 0 0.8rem; color: #c5d0c4; }
#sankey { width: 100%; min-height: 280px; }
#sankey svg { width: 100%; height: auto; display: block; }

.product-embed {
  width: 100%;
  min-height: 720px;
  height: 80vh;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--card);
}

.embed-section { scroll-margin-top: 4.6rem; }
.looker-embed { margin: 1.4rem 0 1.8rem; }
.looker-embed iframe {
  width: 100%;
  min-height: 72vh;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #0f1612;
}

.is-hidden { display: none !important; }

@media (max-width: 800px) {
  .stats, .grid, .grid.featured, .kpis { grid-template-columns: 1fr; }
  .top {
    flex-wrap: wrap;
    gap: 0.55rem 1rem;
  }
  nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem 0.9rem;
  }
  .hero { padding-top: 3.2rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  #net { display: none; }
}