:root {
  --bg: #06101f;
  --panel: #0b1729;
  --panel-2: #101f35;
  --text: #f5f8ff;
  --muted: #9dabbe;
  --line: rgba(197, 216, 255, 0.14);
  --blue: #408cff;
  --cyan: #51e3ff;
  --green: #6df7c3;
  --violet: #8d72ff;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--text);
  background: radial-gradient(circle at 75% 10%, rgba(55, 112, 255, .16), transparent 28%), var(--bg);
  font-family: Inter, Arial, sans-serif;
}
a { color: inherit; text-decoration: none; }
.wrap { width: min(calc(100% - 48px), var(--max)); margin-inline: auto; }
.nav {
  height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  position: relative;
  z-index: 2;
}
.brand { display: flex; align-items: center; gap: 12px; font-size: 20px; letter-spacing: -.06em; }
.brand b span { color: var(--cyan); }
.brand-mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  font: 700 12px/1 "DM Mono", monospace;
  box-shadow: 0 0 34px rgba(64, 140, 255, .28);
}
.nav-links { display: flex; gap: 30px; margin-left: auto; margin-right: 30px; }
.nav-links a, .nav-cta {
  color: var(--muted);
  font: 700 11px/1 "DM Mono", monospace;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.nav-links a:hover { color: var(--cyan); }
.nav-cta { padding: 14px 18px; border: 1px solid var(--line); color: var(--text); border-radius: 999px; }
.hero {
  min-height: 760px;
  position: relative;
  display: grid;
  align-items: center;
}
.hero-art {
  position: absolute;
  right: -230px;
  top: 32px;
  height: 690px;
  max-width: none;
  opacity: .86;
  z-index: 0;
  mask-image: linear-gradient(90deg, transparent 0%, black 20%, black 100%);
}
.hero-copy { position: relative; z-index: 1; max-width: 640px; padding-bottom: 30px; }
.eyebrow {
  margin: 0 0 18px;
  color: #9fb0cf;
  display: flex;
  gap: 10px;
  align-items: center;
  font: 700 11px/1.2 "DM Mono", monospace;
  letter-spacing: .12em;
}
.eyebrow span { width: 34px; border-top: 2px solid var(--cyan); box-shadow: 0 0 12px var(--cyan); }
h1, h2 {
  margin: 0;
  color: var(--text);
  line-height: .98;
  letter-spacing: -.075em;
  font-weight: 900;
}
h1 { font-size: clamp(54px, 7.2vw, 98px); max-width: 760px; }
h2 { font-size: clamp(40px, 5vw, 68px); max-width: 860px; }
.hero-text, .section-head > p:last-child, .quick p, .method p, .paper-card p, .explain li, .footer p {
  color: var(--muted);
  line-height: 1.7;
  font-size: 16px;
}
.hero-text { max-width: 575px; margin: 28px 0 34px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
  font: 800 12px/1 "DM Mono", monospace;
  letter-spacing: .06em;
  text-transform: uppercase;
}
.button.primary { background: linear-gradient(135deg, var(--blue), #5544df); border-color: transparent; }
.hero-card {
  position: absolute;
  right: 15px;
  bottom: 86px;
  width: 230px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(9, 18, 35, .72);
  backdrop-filter: blur(14px);
  z-index: 1;
}
.hero-card span { color: var(--cyan); font: 800 10px/1 "DM Mono", monospace; letter-spacing: .14em; }
.hero-card strong { display: block; font-size: 82px; line-height: .9; letter-spacing: -.12em; margin: 14px 0 8px; }
.hero-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.55; }
.quick { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding-bottom: 86px; }
.quick article {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.018));
}
.quick span, .method b {
  color: var(--cyan);
  font: 800 12px/1 "DM Mono", monospace;
  letter-spacing: .12em;
}
.quick h2 { font-size: 26px; letter-spacing: -.045em; margin: 22px 0 12px; }
.quick p { margin: 0; font-size: 14px; }
.section { padding: 110px 0; }
.basket {
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01));
  border-block: 1px solid var(--line);
}
.section-head { margin-bottom: 46px; }
.section-head.narrow { max-width: 790px; }
.section-head > p:last-child { max-width: 760px; margin: 20px 0 0; }
.basket-grid { display: grid; grid-template-columns: 380px 1fr; gap: 36px; align-items: start; }
.chart-card {
  position: sticky;
  top: 24px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 34px;
  background: rgba(6, 16, 31, .74);
}
.donut {
  position: relative;
  width: 300px;
  height: 300px;
  margin-inline: auto;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: conic-gradient(var(--blue) 0 20%, var(--cyan) 20% 36%, var(--violet) 36% 47%, #5db6ff 47% 56%, #6df7c3 56% 64%, #7598ff 64% 71%, #b078ff 71% 77%, #43d6ff 77% 82%, #5d7cff 82% 86%, #8df6d7 86% 90%, #8e6dff 90% 93%, #4cc1ff 93% 96%, #6adfff 96% 98%, #a58cff 98% 99%, #86a4ff 99% 100%);
  box-shadow: 0 0 55px rgba(64, 140, 255, .22);
}
.donut::before {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: var(--panel);
}
.donut div { position: relative; text-align: center; }
.donut b { display: block; font-size: 32px; letter-spacing: -.06em; }
.donut span { color: var(--cyan); font: 800 13px/1 "DM Mono", monospace; }
.chart-card p { margin: 24px 0 0; color: var(--muted); font-size: 13px; text-align: center; line-height: 1.6; }
.asset-table {
  border: 1px solid var(--line);
  border-radius: 28px;
  overflow: hidden;
  background: rgba(9, 18, 35, .55);
}
.table-head, .asset-row { display: grid; grid-template-columns: 120px 1fr 86px; align-items: center; }
.table-head {
  padding: 16px 20px;
  color: #7f8da7;
  font: 800 10px/1 "DM Mono", monospace;
  letter-spacing: .12em;
  text-transform: uppercase;
  background: rgba(255,255,255,.035);
}
.asset-row {
  min-height: 55px;
  padding: 0 20px;
  border-top: 1px solid var(--line);
  transition: background .18s;
}
.asset-row:hover, .asset-row.active { background: rgba(64, 140, 255, .12); }
.asset-id { display: flex; align-items: center; gap: 10px; font: 800 14px/1 "DM Mono", monospace; color: var(--text); }
.asset-id i { width: 9px; height: 9px; border-radius: 50%; background: var(--c); box-shadow: 0 0 14px var(--c); }
.asset-role { color: var(--muted); font-size: 14px; }
.asset-weight { text-align: right; color: #dff8ff; font: 800 13px/1 "DM Mono", monospace; }
.method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 42px; }
.method-grid article {
  min-height: 250px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--panel);
}
h3 { margin: 50px 0 12px; font-size: 30px; letter-spacing: -.055em; }
.explain {
  border-block: 1px solid var(--line);
  background: radial-gradient(circle at 20% 40%, rgba(81, 227, 255, .1), transparent 30%), #071426;
}
.explain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 54px; align-items: start; }
.explain ul { margin: 8px 0 0; padding: 0; list-style: none; }
.explain li { padding: 18px 0; border-bottom: 1px solid var(--line); }
.explain b { color: var(--text); }
.paper-card {
  display: grid;
  grid-template-columns: 1fr 330px;
  gap: 42px;
  align-items: center;
  padding: 44px;
  border: 1px solid var(--line);
  border-radius: 36px;
  background: linear-gradient(135deg, rgba(64,140,255,.12), rgba(141,114,255,.08));
}
.paper-card p { max-width: 560px; }
.paper-cover {
  height: 400px;
  padding: 28px;
  border-radius: 26px;
  border: 1px solid rgba(255,255,255,.18);
  background: linear-gradient(180deg, rgba(6,16,31,.42), #06101f), url("assets/fef15-hero.png") center top / auto 70% no-repeat;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 70px rgba(0,0,0,.32);
}
.paper-cover span, .paper-cover small { color: #a9b8d3; font: 800 10px/1.5 "DM Mono", monospace; letter-spacing: .12em; }
.paper-cover strong { margin-top: auto; margin-bottom: 20px; font-size: 38px; line-height: 1; letter-spacing: -.07em; }
.footer {
  min-height: 120px;
  display: grid;
  grid-template-columns: 160px 1fr auto;
  gap: 24px;
  align-items: center;
  border-top: 1px solid var(--line);
}
.footer p { font-size: 12px; max-width: 650px; }
.footer > a:last-child { color: var(--cyan); font: 800 11px/1 "DM Mono", monospace; text-transform: uppercase; letter-spacing: .08em; }
@media (max-width: 900px) {
  .wrap { width: min(calc(100% - 32px), var(--max)); }
  .nav-links { display: none; }
  .hero { min-height: 720px; align-items: end; padding-bottom: 48px; }
  .hero-art { right: -390px; top: 20px; height: 560px; opacity: .48; }
  .hero-card { display: none; }
  h1 { font-size: 54px; }
  .quick, .basket-grid, .method-grid, .explain-grid, .paper-card, .footer { grid-template-columns: 1fr; }
  .chart-card { position: static; }
  .donut { width: 260px; height: 260px; }
  .donut::before { width: 190px; height: 190px; }
  .table-head, .asset-row { grid-template-columns: 82px 1fr 62px; }
  .asset-role { font-size: 12px; }
  .section { padding: 82px 0; }
}