:root {
  --ink: #071a38;
  --card: #ffffff;
  --gold: #ffbd00;
  --paper: #ffffff;
  --muted: #466580;
  --line: #9ecbff;
  --blue: #006cff;
  --teal: #00c9bc;
  --ice: #eef8ff;
  --max: 1180px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background:
    radial-gradient(circle at 84% 6%, rgba(0, 108, 255, 0.2), transparent 30rem),
    radial-gradient(circle at 8% 32%, rgba(0, 201, 188, 0.14), transparent 24rem),
    linear-gradient(180deg, #fafdff 0%, var(--ice) 760px, #ffffff 1450px);
  color: var(--ink);
  font-family: Inter, system-ui, sans-serif;
  line-height: 1.55;
}
.wrap {
  width: min(var(--max), calc(100% - 40px));
  margin: auto;
}
.nav {
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  font:
    500 12px/1 DM Mono,
    monospace;
  letter-spacing: 0.12em;
}
.brand {
  color: var(--blue);
  text-decoration: none;
}
.archive {
  color: #315778;
}
.hero {
  min-height: 760px;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 72px;
  align-items: center;
  padding-block: 72px;
}
.eyebrow,
.mono {
  font:
    500 12px/1.4 DM Mono,
    monospace;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}
h1,
h2,
h3,
p {
  margin-top: 0;
}
h1 {
  font:
    400 clamp(54px, 6.8vw, 94px)/0.94 Instrument Serif,
    serif;
  letter-spacing: -0.025em;
  margin: 24px 0 26px;
}
em {
  font-weight: 400;
  color: var(--blue);
}
.lede {
  font-size: 20px;
  color: #294e70;
  max-width: 650px;
}
.buy-row {
  display: flex;
  align-items: center;
  gap: 20px;
  margin: 36px 0;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  padding: 0 25px;
  background: linear-gradient(135deg, #0077ff, #0050df 62%, #00aebb);
  color: #ffffff;
  text-decoration: none;
  font-weight: 700;
  border: 2px solid #8edcff;
  box-shadow: 0 14px 34px rgba(0, 91, 230, 0.3);
  transition: 0.2s;
}
.button:hover {
  background: linear-gradient(135deg, #005fea, #00bdb1);
  border-color: #0077ff;
  transform: translateY(-2px);
}
.buy-note {
  font-size: 12px;
  color: var(--muted);
}
.signal-list {
  list-style: none;
  padding: 24px 0 0;
  margin: 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.signal-list li {
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--line);
  padding-right: 18px;
  margin-right: 18px;
}
.signal-list li:last-child {
  border: 0;
}
.signal-list strong {
  font:
    400 40px/1 Instrument Serif,
    serif;
  color: var(--blue);
}
.signal-list span {
  font-size: 12px;
  color: var(--muted);
}
.cover {
  aspect-ratio: 4/5;
  background: linear-gradient(145deg, #00c9ff 0%, #0879ff 38%, #0645c8 72%, #08275e 100%);
  border: 2px solid #73e8ff;
  box-shadow: 0 34px 80px rgba(0, 92, 230, 0.34);
  padding: 42px;
  display: flex;
  flex-direction: column;
  position: relative;
}
.cover:after {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  pointer-events: none;
}
.cover-meta,
.cover-footer {
  font:
    500 11px/1.4 DM Mono,
    monospace;
  letter-spacing: 0.14em;
  color: var(--gold);
}
.cover h2 {
  font:
    400 clamp(44px, 5vw, 72px)/0.86 Instrument Serif,
    serif;
  letter-spacing: -0.02em;
  margin: auto 0;
  color: var(--paper);
}
.cover-map {
  display: grid;
  grid-template-columns: 1fr 28px 1fr 28px 1fr;
  align-items: center;
  gap: 6px;
  font:
    500 8px/1.2 DM Mono,
    monospace;
  color: #dffcff;
  margin-bottom: auto;
}
.cover-map i {
  height: 1px;
  background: var(--gold);
}
.cover-footer {
  color: var(--paper);
  margin: 0;
}
.proof-strip {
  border-block: 1px solid #56bdff;
  background: linear-gradient(100deg, #0059df, #007cff 52%, #00a89f);
}
.proof-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr;
  align-items: center;
  min-height: 110px;
  gap: 30px;
}
.proof-grid p {
  margin: 0;
  color: #d9edff;
}
.proof-grid .loop {
  color: var(--gold);
  font:
    500 14px DM Mono,
    monospace;
  letter-spacing: 0.08em;
}
.section {
  padding-block: 120px;
}
.section-title {
  font:
    400 clamp(44px, 5vw, 70px)/1 Instrument Serif,
    serif;
  max-width: 860px;
  margin: 18px 0 20px;
}
.section-intro {
  font-size: 18px;
  color: var(--muted);
  max-width: 700px;
}
.module-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-top: 60px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.module-grid article {
  min-height: 285px;
  padding: 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: inset 0 5px 0 transparent;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.module-grid article:hover {
  transform: translateY(-5px);
  box-shadow: inset 0 5px 0 var(--teal), 0 18px 42px rgba(0, 87, 190, 0.13);
}
.module-grid b {
  font:
    500 12px DM Mono,
    monospace;
  color: var(--gold);
}
.module-grid h3 {
  font:
    400 28px/1.05 Instrument Serif,
    serif;
  margin: 45px 0 14px;
  color: var(--ink);
}
.module-grid p {
  font-size: 14px;
  color: var(--muted);
}
.module-grid span {
  margin-top: auto;
  font:
    500 10px DM Mono,
    monospace;
  letter-spacing: 0.08em;
  color: #00675f;
}
.paper-section {
  background: linear-gradient(135deg, #e7f7ff, #dffefa);
  border-block: 1px solid var(--line);
}
.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 90px;
  align-items: center;
}
.gold {
  color: var(--gold);
}
.review-card {
  border: 1px solid var(--line);
  padding: 24px;
  margin-top: 38px;
  background: #ffffff;
  box-shadow: 0 18px 48px rgba(0, 92, 190, 0.11);
}
.review-card ul {
  margin: 12px 0 0;
  padding-left: 20px;
  color: #294e70;
}
.paper {
  background: var(--paper);
  color: var(--ink);
  padding: 50px;
  box-shadow: 0 25px 70px #000;
}
.paper-kicker {
  font:
    500 11px DM Mono,
    monospace;
  color: #786333;
  letter-spacing: 0.1em;
}
.paper h3 {
  font:
    400 40px/1 Instrument Serif,
    serif;
  margin: 30px 0 38px;
}
.paper label {
  display: block;
  font:
    500 10px DM Mono,
    monospace;
  letter-spacing: 0.08em;
  color: #777;
}
.line {
  border-bottom: 1px solid #c8c3b7;
  padding: 7px 0 12px;
  margin-bottom: 20px;
  font-size: 14px;
}
.sample-note {
  font-size: 10px;
  color: #777;
  margin: 28px 0 0;
}
.manifest {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 90px;
  margin-top: 60px;
}
.stack {
  display: flex;
  flex-direction: column;
  perspective: 900px;
}
.stack span {
  display: block;
  background: var(--card);
  border: 1px solid #2696ff;
  padding: 18px 24px;
  font:
    500 12px DM Mono,
    monospace;
  color: var(--ink);
  transform: translateX(calc(var(--i, 0) * 5px));
  margin-top: -1px;
}
.stack span:nth-child(2) {
  margin-left: 15px;
}
.stack span:nth-child(3) {
  margin-left: 30px;
}
.stack span:nth-child(4) {
  margin-left: 45px;
}
.stack span:nth-child(5) {
  margin-left: 60px;
  color: var(--gold);
}
.manifest-list p {
  display: grid;
  grid-template-columns: 170px 1fr;
  border-top: 1px solid var(--line);
  padding: 20px 0;
  margin: 0;
  color: var(--muted);
}
.manifest-list b {
  color: var(--ink);
}
.fit-section {
  background: linear-gradient(120deg, #ffffff, #ecf8ff);
  color: var(--ink);
}
.fit-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
.fit-grid h2 {
  font:
    400 48px/1.04 Instrument Serif,
    serif;
}
.fit-grid ul {
  margin: 30px 0;
  padding-left: 20px;
  font-size: 18px;
}
.fit-grid li {
  margin-bottom: 22px;
}
.not-for {
  grid-column: 1/-1;
  border-top: 1px solid #ccc;
  padding-top: 28px;
  display: grid;
  grid-template-columns: 180px 1fr;
}
.not-for p {
  margin: 0;
}
.faq {
  max-width: 880px;
}
.faq details {
  border-top: 1px solid var(--line);
  padding: 24px 0;
}
.faq summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 600;
}
.faq details p {
  color: var(--muted);
  max-width: 720px;
  margin: 15px 0 0;
}
.final-cta {
  text-align: center;
  padding: 130px 0;
  background:
    radial-gradient(circle at 12% 15%, rgba(0, 226, 208, 0.55), transparent 23rem),
    linear-gradient(135deg, #0059e6, #007fff 55%, #00a99d);
  border-top: 1px solid #7adfff;
  color: #ffffff;
}
.final-cta h2 {
  font:
    400 clamp(54px, 7vw, 88px)/0.95 Instrument Serif,
    serif;
  margin: 20px 0 36px;
}
.final-cta em {
  color: var(--gold);
}
.final-cta p:last-child {
  font-size: 12px;
  color: #dcf7ff;
  margin-top: 18px;
}
.footer {
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font:
    500 11px DM Mono,
    monospace;
  color: var(--muted);
}
.footer a {
  color: var(--blue);
}
.mobile-buy {
  display: none;
}
@media (max-width: 800px) {
  .wrap {
    width: min(100% - 28px, var(--max));
  }
  .archive {
    display: none;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 48px;
    min-height: auto;
    padding-block: 54px;
  }
  .hero-copy {
    order: 1;
  }
  .cover {
    order: 2;
    max-width: 520px;
    width: 100%;
    margin: auto;
    padding: 32px;
  }
  .buy-row {
    align-items: stretch;
    flex-direction: column;
  }
  .button {
    width: 100%;
  }
  .signal-list {
    gap: 10px;
  }
  .signal-list li {
    padding-right: 8px;
    margin-right: 5px;
  }
  .proof-grid {
    grid-template-columns: 1fr;
    gap: 10px;
    padding-block: 28px;
  }
  .section {
    padding-block: 78px;
  }
  .module-grid {
    grid-template-columns: 1fr;
  }
  .module-grid article {
    min-height: 230px;
  }
  .split,
  .manifest,
  .fit-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  .paper {
    padding: 30px 24px;
  }
  .manifest-list p {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .not-for {
    grid-column: auto;
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .footer {
    padding-bottom: 92px;
    flex-direction: column;
    justify-content: center;
    gap: 10px;
  }
  .section-title {
    font-size: 48px;
  }
  h1 {
    font-size: 58px;
  }
  .cover h2 {
    font-size: 50px;
  }
  .mobile-buy {
    position: fixed;
    z-index: 20;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 14px;
    padding: 10px 14px;
    background: rgba(6, 20, 43, 0.96);
    border-top: 1px solid #35cfff;
    box-shadow: 0 -12px 36px rgba(0, 0, 0, 0.34);
    backdrop-filter: blur(12px);
  }
  .mobile-buy span {
    display: flex;
    flex-direction: column;
  }
  .mobile-buy strong {
    color: var(--paper);
    font-size: 13px;
  }
  .mobile-buy small {
    color: var(--muted);
    font-size: 11px;
  }
  .mobile-buy .button {
    width: auto;
    min-height: 46px;
    padding-inline: 17px;
    white-space: nowrap;
  }
}