:root {
  color-scheme: light;
  --ink: #10283c;
  --ink-soft: #4f6372;
  --navy: #0c2235;
  --navy-2: #143a50;
  --teal: #00a69c;
  --teal-dark: #007d77;
  --paper: #f5f8fa;
  --white: #ffffff;
  --line: #ccdae0;
  --warning: #a64b32;
  --max: 1160px;
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.75;
}

button, a { font: inherit; }
a { color: inherit; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 0 max(24px, calc((100vw - var(--max)) / 2));
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  border-bottom: 1px solid rgba(16, 40, 60, 0.12);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: var(--white);
  background: var(--navy);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
}

.quiet-link {
  color: var(--ink-soft);
  font-size: 15px;
  text-underline-offset: 5px;
}

.topnav { display: flex; align-items: center; gap: 24px; }

.section-shell {
  width: min(var(--max), calc(100% - 48px));
  margin-inline: auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: clamp(36px, 8vw, 104px);
  align-items: center;
  min-height: calc(100vh - 68px);
  padding-block: 72px;
}

.hero-copy { max-width: 720px; }

.eyebrow {
  margin: 0 0 18px;
  color: var(--teal-dark);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  margin-bottom: 26px;
  font-size: clamp(44px, 6.2vw, 82px);
  line-height: 1.08;
  letter-spacing: -0.055em;
}

.hero-lead {
  max-width: 620px;
  margin-bottom: 30px;
  color: var(--ink-soft);
  font-size: clamp(18px, 2.2vw, 23px);
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid var(--navy);
  border-radius: 0;
  cursor: pointer;
  font-weight: 750;
  text-decoration: none;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.button:hover { transform: translateY(-2px); }
.button:focus-visible { outline: 3px solid rgba(0, 166, 156, 0.35); outline-offset: 3px; }
.button-primary { color: var(--white); background: var(--navy); box-shadow: 6px 6px 0 var(--teal); }
.button-primary:hover { background: var(--navy-2); box-shadow: 4px 4px 0 var(--teal); }
.button-secondary { background: transparent; }
.button-secondary:hover { background: var(--white); }

.microcopy {
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.offer-card {
  position: relative;
  padding: 32px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 14px 14px 0 #d9e8ea;
}

.offer-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 6px;
  background: var(--teal);
}

.offer-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; margin-bottom: 28px; }
.offer-label { color: var(--teal-dark); font-weight: 800; }
.price { font-size: 56px; font-weight: 850; line-height: 1; letter-spacing: -0.06em; }
.price span { margin-right: 4px; font-size: 22px; }
.deliverables { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.deliverables li { display: grid; grid-template-columns: 38px 1fr; gap: 10px; padding: 14px 0; border-bottom: 1px solid var(--line); }
.deliverables span { color: var(--teal-dark); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; font-weight: 800; }
.scope-note { margin: 22px 0 0; color: var(--ink-soft); font-size: 14px; }

.proof-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--navy);
  color: var(--white);
  border-block: 1px solid rgba(255, 255, 255, 0.16);
}

.proof-strip div { display: grid; gap: 4px; padding: 24px; text-align: center; border-right: 1px solid rgba(255, 255, 255, 0.16); }
.proof-strip div:last-child { border-right: 0; }
.proof-strip strong { font-size: 18px; }
.proof-strip span { color: #b8c9d3; font-size: 14px; }

.sample-section, .fit-section, .pricing-section { padding-block: 112px; }
.section-heading { max-width: 760px; margin-bottom: 48px; }
.section-heading h2, .final-cta h2 { margin-bottom: 16px; font-size: clamp(32px, 4.8vw, 54px); line-height: 1.2; letter-spacing: -0.045em; }
.section-heading > p:last-child { color: var(--ink-soft); font-size: 18px; }

.compare-grid { display: grid; grid-template-columns: 1fr auto 1fr; gap: 24px; align-items: stretch; }
.compare-card { padding: clamp(24px, 4vw, 40px); background: var(--white); border: 1px solid var(--line); }
.card-kicker { display: inline-block; margin-bottom: 22px; padding: 4px 10px; background: #e9eff2; font-size: 14px; font-weight: 800; }
.after-card { border-color: var(--teal); box-shadow: 10px 10px 0 #d9e8ea; }
.after-card .card-kicker { color: var(--white); background: var(--teal-dark); }
.compare-card > p { font-size: 18px; line-height: 1.9; }
.compare-card ul { margin: 26px 0 0; padding: 22px 0 0 22px; color: var(--ink-soft); border-top: 1px solid var(--line); }
.transfer { align-self: center; color: var(--teal-dark); font-size: 36px; font-weight: 800; }

.dark-section { background: var(--navy); color: var(--white); }
.method-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(40px, 8vw, 110px); padding-block: 112px; }
.light-heading .eyebrow { color: #55d8d0; }
.light-heading h2 { color: var(--white); }
.method-list { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; }
.method-list li { display: grid; grid-template-columns: 56px 1fr; gap: 18px; padding: 22px 0; border-top: 1px solid rgba(255, 255, 255, 0.17); }
.method-list li:last-child { border-bottom: 1px solid rgba(255, 255, 255, 0.17); }
.method-list > li > span { color: #55d8d0; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-weight: 800; }
.method-list strong { font-size: 20px; }
.method-list p { margin: 4px 0 0; color: #b8c9d3; }

.fit-grid, .pricing-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.fit-card, .price-card { padding: 34px; background: var(--white); border: 1px solid var(--line); }
.fit-card h3, .price-card h3 { margin-bottom: 16px; font-size: 24px; }
.fit-card ul { margin: 0; padding-left: 22px; }
.fit-card li { margin-bottom: 10px; }
.good-fit { border-top: 6px solid var(--teal); }
.no-fit { border-top: 6px solid var(--warning); }

.evidence-section {
  padding-block: 112px;
  color: var(--white);
  background: #071925;
}

.evidence-heading .eyebrow { color: #55d8d0; }
.evidence-heading h2 { color: var(--white); }
.evidence-heading > p:last-child { color: #b8c9d3; }
.evidence-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.evidence-card { padding: clamp(26px, 4vw, 40px); background: #102b3d; border: 1px solid rgba(255, 255, 255, 0.16); }
.evidence-card h3 { margin-bottom: 16px; font-size: clamp(25px, 3vw, 34px); line-height: 1.25; letter-spacing: -0.025em; }
.evidence-card > p { color: #c6d5dc; }
.evidence-meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; margin-bottom: 24px; color: #55d8d0; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; font-weight: 800; letter-spacing: 0.06em; }
.metric-row { display: grid; grid-template-columns: repeat(3, 1fr); margin: 30px 0; border-block: 1px solid rgba(255, 255, 255, 0.16); }
.metric-row div { display: grid; gap: 3px; padding: 18px 14px; border-right: 1px solid rgba(255, 255, 255, 0.16); }
.metric-row div:last-child { border-right: 0; }
.metric-row strong { color: #55d8d0; font-size: 26px; line-height: 1.2; }
.metric-row span { color: #b8c9d3; font-size: 13px; line-height: 1.5; }
.audit-flow { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 30px 0; padding: 22px 18px; border-block: 1px solid rgba(255, 255, 255, 0.16); }
.audit-flow span { font-weight: 750; }
.audit-flow b { color: #55d8d0; }
.evidence-card details { border-top: 1px solid rgba(255, 255, 255, 0.16); }
.evidence-card summary { padding: 18px 0 4px; color: #55d8d0; cursor: pointer; font-weight: 750; }
.evidence-card details ul { margin: 14px 0 0; padding-left: 22px; color: #b8c9d3; }
.evidence-card details li { margin-bottom: 8px; }
.inline-cta { color: #55d8d0; font-weight: 800; text-underline-offset: 5px; }

.article-shell { width: min(900px, calc(100% - 48px)); margin-inline: auto; }
.article-hero { padding: 104px 0 64px; border-bottom: 1px solid var(--line); }
.article-hero h1 { max-width: 850px; font-size: clamp(42px, 6vw, 72px); }
.article-deck { max-width: 780px; color: var(--ink-soft); font-size: clamp(20px, 2.8vw, 27px); line-height: 1.55; }
.article-byline { margin: 34px 0 0; color: var(--teal-dark); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 14px; font-weight: 750; }
.article-body { max-width: 780px; padding: 64px 0 112px; }
.article-body .lede { color: var(--ink); font-size: 23px; line-height: 1.65; }
.article-body h2 { margin: 64px 0 18px; font-size: clamp(28px, 4vw, 40px); line-height: 1.25; letter-spacing: -0.035em; }
.article-body p, .article-body li { color: #304b5e; }
.article-body li { margin-bottom: 9px; }
.article-body a { color: var(--teal-dark); font-weight: 700; text-underline-offset: 4px; }
.article-body code { padding: 0.15em 0.35em; background: #e5eef1; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em; }
.wallet-address { overflow-wrap: anywhere; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em; }
.article-body pre { overflow-x: auto; margin: 26px 0; padding: 24px; color: #dff5f2; background: var(--navy); border-left: 5px solid var(--teal); line-height: 1.55; }
.article-body pre code { padding: 0; color: inherit; background: transparent; }
.table-wrap { margin: 28px 0; overflow-x: auto; border: 1px solid var(--line); }
.article-table { width: 100%; min-width: 720px; border-collapse: collapse; background: var(--white); }
.article-table th, .article-table td { padding: 16px 18px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.article-table th { color: var(--white); background: var(--navy); font-size: 14px; letter-spacing: 0.02em; }
.article-table tbody tr:last-child td { border-bottom: 0; }
.result-callout { margin: 68px 0; padding: clamp(26px, 5vw, 48px); color: var(--white); background: #102b3d; border-top: 6px solid var(--teal); }
.result-callout h2 { margin-top: 0; color: var(--white); }
.result-callout p { color: #c6d5dc; }
.result-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin: 30px 0; background: rgba(255, 255, 255, 0.18); border: 1px solid rgba(255, 255, 255, 0.18); }
.result-grid div { display: grid; gap: 8px; padding: 24px; background: #102b3d; }
.result-grid strong { color: #55d8d0; font-size: 18px; }
.result-grid span { color: #c6d5dc; }
.result-grid code { background: rgba(255, 255, 255, 0.12); }

.service-hero { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(300px, 0.75fr); gap: clamp(36px, 7vw, 88px); align-items: start; padding: 96px 0 72px; }
.service-hero h1 { font-size: clamp(44px, 6vw, 76px); }
.service-proof { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; background: var(--navy); color: var(--white); }
.service-proof li { display: grid; grid-template-columns: 44px 1fr; gap: 12px; padding: 18px 22px; border-bottom: 1px solid rgba(255, 255, 255, 0.16); }
.service-proof strong { color: #55d8d0; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.service-section { padding: 72px 0; border-top: 1px solid var(--line); }
.service-section h2 { max-width: 760px; margin-bottom: 28px; font-size: clamp(30px, 4.4vw, 48px); line-height: 1.2; letter-spacing: -0.04em; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service-card { padding: 30px; background: var(--white); border: 1px solid var(--line); }
.service-card h3 { font-size: 22px; }
.service-card p { color: var(--ink-soft); }
.service-card ul { margin: 20px 0 0; padding-left: 20px; color: var(--ink-soft); }
.service-card.featured { border-top: 6px solid var(--teal); }

.claim-example { background: var(--white); border: 1px solid var(--line); border-top: 6px solid var(--teal); }
.claim-row { display: grid; grid-template-columns: 160px 1fr; gap: 24px; padding: 24px 28px; border-bottom: 1px solid var(--line); }
.claim-row:last-child { border-bottom: 0; }
.claim-row p { margin: 0; }
.claim-label { color: var(--teal-dark); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 13px; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; }
.source-list { margin: 0; padding-left: 22px; color: var(--ink-soft); }
.source-list li + li { margin-top: 12px; }
.source-list a { color: var(--ink); font-weight: 750; text-underline-offset: 4px; }
.replacement-row { background: #edf7f6; }
.replacement-row code, .claim-row code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.92em; }
.service-price { margin: 14px 0 18px; font-size: 42px; font-weight: 850; line-height: 1; letter-spacing: -0.04em; }
.service-price small { color: var(--ink-soft); font-size: 14px; font-weight: 600; letter-spacing: 0; }
.service-process { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; padding: 1px; background: var(--line); }
.service-process div { padding: 26px; background: var(--paper); }
.service-process div::before { counter-increment: step; content: "0" counter(step); display: block; margin-bottom: 16px; color: var(--teal-dark); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-weight: 800; }
.service-process strong { display: block; margin-bottom: 8px; }
.service-process p { margin: 0; color: var(--ink-soft); }
.service-cta { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 32px; align-items: center; margin: 30px 0 96px; padding: clamp(28px, 5vw, 54px); color: var(--white); background: var(--navy); border-left: 7px solid var(--teal); }
.service-cta h2 { margin-bottom: 12px; font-size: clamp(30px, 4vw, 48px); line-height: 1.2; }
.service-cta p { margin-bottom: 0; color: #c6d5dc; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 12px; }
.service-cta .button { justify-self: end; color: var(--navy); background: #55d8d0; border-color: #55d8d0; box-shadow: 6px 6px 0 rgba(255, 255, 255, 0.28); }
.service-cta .button-secondary { color: var(--white); background: transparent; border-color: rgba(255, 255, 255, 0.56); box-shadow: none; }

.pricing-section { padding-top: 10px; }
.price-card { position: relative; }
.price-card.featured { border-color: var(--teal); }
.pill { display: inline-block; margin-bottom: 20px; padding: 4px 9px; color: var(--white); background: var(--teal-dark); font-size: 13px; font-weight: 800; }
.muted-pill { color: var(--ink); background: #e9eff2; }
.tier-price { margin-bottom: 16px; font-size: 46px; font-weight: 850; line-height: 1; letter-spacing: -0.05em; }
.price-card p { margin-bottom: 0; color: var(--ink-soft); }

.final-cta { display: flex; align-items: center; justify-content: space-between; gap: 32px; margin-top: 40px; padding: 36px; background: #e2f0f0; border-left: 6px solid var(--teal); }
.final-cta h2 { margin-bottom: 10px; font-size: clamp(26px, 3.6vw, 40px); }
.final-cta p { margin-bottom: 0; color: var(--ink-soft); }
.terms { margin: 24px 0 0; color: var(--ink-soft); font-size: 14px; }

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 30px max(24px, calc((100vw - var(--max)) / 2));
  color: #b8c9d3;
  background: var(--navy);
  font-size: 14px;
}

@media (max-width: 840px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-block: 64px 80px; }
  .offer-card { max-width: 560px; }
  .proof-strip { grid-template-columns: 1fr 1fr; }
  .proof-strip div:nth-child(2) { border-right: 0; }
  .compare-grid { grid-template-columns: 1fr; }
  .transfer { transform: rotate(90deg); justify-self: center; }
  .method-grid { grid-template-columns: 1fr; }
  .final-cta { align-items: flex-start; flex-direction: column; }
  .evidence-grid { grid-template-columns: 1fr; }
  .result-grid { grid-template-columns: 1fr; }
  .service-hero { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: 1fr; }
  .service-process { grid-template-columns: 1fr 1fr; }
  .claim-row { grid-template-columns: 1fr; gap: 8px; }
  .service-cta { grid-template-columns: 1fr; }
  .cta-actions { justify-content: flex-start; }
  .service-cta .button { justify-self: start; }
}

@media (max-width: 560px) {
  .topbar { min-height: 60px; padding-inline: 18px; }
  .topnav { gap: 14px; }
  .quiet-link:first-child { display: none; }
  .section-shell { width: min(100% - 32px, var(--max)); }
  .hero { padding-block: 48px 68px; }
  h1 { font-size: 44px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .button { width: 100%; }
  .offer-card { padding: 26px 22px; box-shadow: 8px 8px 0 #d9e8ea; }
  .price { font-size: 48px; }
  .proof-strip { grid-template-columns: 1fr; }
  .proof-strip div { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.16); }
  .sample-section, .fit-section, .pricing-section, .evidence-section { padding-block: 76px; }
  .section-heading { margin-bottom: 32px; }
  .compare-card, .fit-card, .price-card { padding: 24px; }
  .method-grid { padding-block: 76px; }
  .fit-grid, .pricing-grid { grid-template-columns: 1fr; }
  .metric-row { grid-template-columns: 1fr; }
  .metric-row div { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, 0.16); }
  .metric-row div:last-child { border-bottom: 0; }
  .audit-flow { align-items: stretch; flex-direction: column; }
  .audit-flow b { transform: rotate(90deg); align-self: center; }
  .final-cta { padding: 26px 22px; }
  footer { align-items: flex-start; flex-direction: column; padding-inline: 18px; }
  .article-shell { width: min(100% - 32px, 900px); }
  .article-hero { padding: 72px 0 48px; }
  .article-body { padding: 48px 0 76px; }
  .service-process { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}