:root {
  color-scheme: light;
  --ink: #101622;
  --ink-soft: #334155;
  --muted: #65758b;
  --line: rgba(18, 29, 43, 0.12);
  --paper: #f8fbff;
  --white: #ffffff;
  --sky: #18adf3;
  --honest-blue: #05a7e1;
  --honest-yellow: #ffe148;
  --sky-deep: #0087d0;
  --mint: #52d9ac;
  --green: #216b55;
  --navy: #101a2b;
  --shadow: 0 24px 80px rgba(26, 70, 110, 0.16);
  --radius: 8px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-size: 16px;
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: fixed;
  z-index: 10;
  top: 14px;
  left: 50%;
  width: min(1120px, calc(100% - 32px));
  min-height: 52px;
  transform: translateX(-50%);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 18px;
  padding: 8px 10px 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.7);
  box-shadow: 0 14px 48px rgba(32, 92, 148, 0.12);
  backdrop-filter: blur(22px);
}

.elegant-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.45), rgba(255, 255, 255, 0.08));
}

.hnst-logo {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--sky);
  font-size: 1.04rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  line-height: 1.15;
  text-transform: uppercase;
}

.site-header .hnst-logo {
  transform: translateY(4px);
}

.hnst-logo span {
  position: relative;
  top: -0.01em;
  font-size: 2.05em;
  font-weight: 900;
  line-height: 0.68;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(16, 22, 34, 0.76);
  font-size: 0.78rem;
  font-weight: 800;
}

.nav-links a,
.footer-links a {
  transition: color 160ms ease;
}

.nav-links a {
  min-height: 30px;
  display: inline-flex;
  align-items: center;
  padding: 0 10px;
  border-radius: 7px;
}

.nav-links a:hover {
  background: rgba(16, 22, 34, 0.05);
}

.nav-links a:hover,
.footer-links a:hover {
  color: var(--sky-deep);
}

.nav-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-link-cta,
.nav-cta {
  justify-self: end;
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  border-radius: 7px;
  background: var(--ink);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 800;
}

.nav-link-cta {
  border: 1px solid rgba(16, 22, 34, 0.14);
  background: rgba(255, 255, 255, 0.68);
  color: var(--ink);
}

.hero {
  position: relative;
  min-height: 100svh;
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 140px 22px 78px;
  isolation: isolate;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
  background: #dff4ff;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(246, 252, 255, 0.12) 0%, rgba(246, 252, 255, 0.28) 45%, rgba(248, 251, 255, 0.92) 100%),
    radial-gradient(circle at 50% 52%, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0) 42%);
}

.hero-content {
  width: min(760px, 100%);
  text-align: center;
  padding-top: 28px;
  transform: translateY(-78px);
}

.landing-hero {
  min-height: calc(100svh - 1px);
}

.hero-mark {
  display: flex;
  justify-content: center;
  margin: 0 auto 190px;
  font-size: clamp(1.1rem, 2vw, 1.34rem);
}

.chain-line {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 12px;
  color: var(--ink);
  font-size: clamp(1.05rem, 2vw, 1.55rem);
  font-weight: 800;
}

.solana-mark {
  display: inline-flex;
  align-items: center;
  color: #070b16;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: 0;
  text-transform: uppercase;
}

.solana-mark::before {
  content: "";
  width: 32px;
  height: 20px;
  margin-right: 9px;
  border-radius: 4px;
  background:
    linear-gradient(170deg, #8cfad9, #35cdf7 45%, #9846ff);
  clip-path: polygon(12% 0, 100% 0, 88% 28%, 0 28%, 12% 0, 0 36%, 88% 36%, 100% 64%, 12% 64%, 0 36%, 12% 72%, 100% 72%, 88% 100%, 0 100%);
}

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

h1 {
  max-width: 780px;
  margin: 0 auto 18px;
  color: var(--sky);
  font-size: clamp(2.9rem, 6vw, 4.9rem);
  line-height: 0.94;
  font-weight: 900;
  letter-spacing: 0;
}

.hero-copy {
  width: min(650px, 100%);
  margin: 0 auto 28px;
  color: rgba(16, 22, 34, 0.78);
  font-size: clamp(1.02rem, 1.8vw, 1.2rem);
}

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

.contract-line {
  max-width: 100%;
  margin: 18px auto 0;
  color: rgba(16, 22, 34, 0.68);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: clamp(0.68rem, 1.4vw, 0.86rem);
  line-height: 1.35;
  overflow-wrap: anywhere;
}

.contract-line a {
  color: var(--sky-deep);
  font-weight: 800;
}

.paper-link {
  display: inline-flex;
  margin-top: 14px;
  color: rgba(16, 22, 34, 0.62);
  font-size: 0.9rem;
  font-weight: 760;
  text-decoration: underline;
  text-underline-offset: 4px;
  text-decoration-thickness: 1px;
}

.paper-link:hover {
  color: var(--sky-deep);
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  border-radius: 7px;
  font-weight: 850;
  line-height: 1;
}

.button.primary {
  background: var(--sky);
  color: var(--white);
  box-shadow: 0 12px 24px rgba(0, 151, 222, 0.28);
}

.button.secondary {
  border: 1px solid rgba(16, 22, 34, 0.18);
  background: rgba(255, 255, 255, 0.54);
  color: var(--ink);
  backdrop-filter: blur(12px);
}

.section-pad {
  padding: 108px max(22px, calc((100vw - 1120px) / 2));
}

.section-label {
  margin-bottom: 14px;
  color: var(--sky-deep);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.intro {
  background: var(--paper);
}

.intro-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(34px, 7vw, 92px);
  align-items: start;
}

.intro h2,
.section-heading h2,
.risk-copy h2 {
  margin-bottom: 0;
  color: var(--navy);
  font-size: clamp(2.3rem, 5vw, 4.9rem);
  line-height: 0.99;
  font-weight: 900;
  letter-spacing: 0;
}

.intro-copy {
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.5vw, 1.16rem);
}

.intro-copy p:last-child {
  margin-bottom: 0;
}

.vaults {
  background: var(--white);
}

.section-heading {
  width: min(790px, 100%);
  margin-bottom: 42px;
}

.section-heading.narrow {
  width: min(760px, 100%);
}

.section-heading p {
  margin: 18px 0 0;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.vault-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.vault-card {
  min-height: 560px;
  display: flex;
  flex-direction: column;
  padding: clamp(26px, 4vw, 44px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0.72)),
    linear-gradient(135deg, rgba(24, 173, 243, 0.12), rgba(82, 217, 172, 0.14));
  box-shadow: var(--shadow);
}

.leverage-card {
  background:
    linear-gradient(180deg, rgba(16, 26, 43, 0.94), rgba(16, 26, 43, 0.9)),
    linear-gradient(135deg, rgba(24, 173, 243, 0.24), rgba(82, 217, 172, 0.2));
  color: var(--white);
}

.vault-kicker {
  color: var(--sky-deep);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.leverage-card .vault-kicker {
  color: var(--mint);
}

.vault-card h3 {
  margin: 18px 0 16px;
  font-size: clamp(2.1rem, 4vw, 4.8rem);
  line-height: 0.92;
  letter-spacing: 0;
}

.vault-card p {
  color: var(--ink-soft);
  font-size: 1.04rem;
}

.leverage-card p {
  color: rgba(255, 255, 255, 0.76);
}

.metric-list {
  display: grid;
  gap: 0;
  margin: auto 0 0;
  border-top: 1px solid var(--line);
}

.leverage-card .metric-list {
  border-color: rgba(255, 255, 255, 0.18);
}

.metric-list div {
  display: grid;
  grid-template-columns: minmax(110px, 0.55fr) 1fr;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.leverage-card .metric-list div {
  border-color: rgba(255, 255, 255, 0.18);
}

.metric-list dt {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.leverage-card .metric-list dt {
  color: rgba(255, 255, 255, 0.56);
}

.metric-list dd {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 850;
}

.mechanism {
  background:
    linear-gradient(180deg, rgba(244, 251, 255, 0.98), rgba(255, 255, 255, 0.98));
}

.mechanism-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  align-items: stretch;
}

.formula-panel,
.flow-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 20px 60px rgba(31, 82, 122, 0.11);
}

.formula-panel {
  padding: clamp(24px, 4vw, 36px);
}

.formula-title {
  display: block;
  margin-bottom: 14px;
  color: var(--green);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

code {
  display: block;
  width: 100%;
  padding: 18px;
  border-radius: 7px;
  background: #0f1724;
  color: #c9f7e3;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: clamp(0.92rem, 1.8vw, 1.15rem);
  white-space: normal;
}

.formula-panel p {
  margin: 20px 0 0;
  color: var(--ink-soft);
}

.flow-panel {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  overflow: hidden;
}

.flow-step {
  min-height: 150px;
  display: flex;
  align-items: flex-end;
  padding: 24px;
  border-right: 1px solid var(--line);
  color: var(--navy);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  font-weight: 900;
  line-height: 1.1;
}

.flow-step:nth-child(2n) {
  background: rgba(24, 173, 243, 0.06);
}

.flow-step:last-child {
  border-right: 0;
}

.risk {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(34px, 7vw, 86px);
  background: var(--navy);
  color: var(--white);
}

.risk-copy h2 {
  color: var(--white);
}

.risk-copy p {
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 1.08rem;
}

.risk-grid {
  display: grid;
  gap: 16px;
}

.risk-grid article {
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
}

.risk-grid span,
.chapter-list span,
.timeline span {
  color: var(--sky);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.risk-grid h3,
.chapter-list h3 {
  margin: 12px 0 8px;
  font-size: 1.35rem;
  line-height: 1.1;
}

.risk-grid p {
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.68);
}

.chapters {
  background: var(--white);
}

.chapter-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.chapter-list article {
  min-height: 260px;
  padding: 24px;
  border-right: 1px solid var(--line);
}

.chapter-list article:last-child {
  border-right: 0;
}

.chapter-list p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.roadmap {
  background:
    linear-gradient(180deg, rgba(248, 251, 255, 0.96), rgba(231, 246, 255, 0.94));
}

.timeline {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.62);
  overflow: hidden;
}

.timeline li {
  min-height: 245px;
  padding: 28px;
  border-right: 1px solid var(--line);
}

.timeline li:last-child {
  border-right: 0;
}

.timeline strong {
  display: block;
  margin: 12px 0 10px;
  font-size: 1.25rem;
}

.timeline p {
  margin-bottom: 0;
  color: var(--ink-soft);
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: end;
  padding: 52px max(22px, calc((100vw - 1120px) / 2));
  background: var(--navy);
  color: var(--white);
}

.site-footer p {
  margin: 16px 0 0;
  color: rgba(255, 255, 255, 0.64);
}

.footer-links {
  display: flex;
  gap: 18px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.92rem;
  font-weight: 750;
}

.whitepaper-body {
  background: #f6f9fd;
}

.whitepaper-nav {
  position: sticky;
  left: auto;
  margin: 14px auto 0;
  transform: none;
}

.whitepaper-shell {
  width: min(1180px, calc(100% - 36px));
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 28px;
  margin: 38px auto 96px;
  align-items: start;
  min-width: 0;
}

.paper-toc {
  position: sticky;
  top: 86px;
  min-width: 0;
  display: grid;
  gap: 2px;
  padding: 12px;
  border: 1px solid rgba(18, 29, 43, 0.1);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 18px 54px rgba(31, 82, 122, 0.08);
}

.paper-toc a {
  min-height: 32px;
  display: flex;
  align-items: center;
  padding: 0 10px;
  border-radius: 6px;
  color: var(--ink-soft);
  font-size: 0.82rem;
  font-weight: 760;
}

.paper-toc a:hover {
  background: rgba(24, 173, 243, 0.1);
  color: var(--sky-deep);
}

.paper {
  min-width: 0;
  border: 1px solid rgba(18, 29, 43, 0.1);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 22px 72px rgba(31, 82, 122, 0.1);
}

.paper-cover,
.paper-section {
  min-width: 0;
  padding: clamp(34px, 6vw, 72px);
  border-bottom: 1px solid rgba(18, 29, 43, 0.1);
}

.paper-section:last-child {
  border-bottom: 0;
}

.paper-kicker {
  color: var(--sky-deep);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.paper-cover {
  display: grid;
  gap: 28px;
  background:
    linear-gradient(90deg, rgba(5, 167, 225, 0.07), rgba(255, 255, 255, 0) 52%),
    linear-gradient(180deg, rgba(255, 225, 72, 0.08), rgba(255, 255, 255, 0) 38%),
    #ffffff;
}

.paper-cover h1 {
  max-width: 900px;
  margin: 12px 0 18px;
  color: var(--navy);
  font-size: clamp(2.75rem, 6vw, 5.7rem);
  line-height: 0.96;
  letter-spacing: 0;
}

.paper-subtitle {
  max-width: 680px;
  color: var(--ink-soft);
  font-size: clamp(1.02rem, 1.65vw, 1.24rem);
  line-height: 1.55;
}

.paper-thesis {
  width: fit-content;
  max-width: 100%;
  display: inline-flex;
  gap: 18px;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 30px;
  padding: 14px 18px;
  border-left: 4px solid var(--honest-yellow);
  border-radius: var(--radius);
  background: var(--honest-blue);
  color: var(--white);
  font-family:
    Montserrat, Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  box-shadow: 0 20px 54px rgba(5, 167, 225, 0.2);
}

.paper-thesis span,
.paper-thesis strong {
  display: block;
  line-height: 1.15;
}

.paper-thesis span {
  font-size: clamp(1rem, 1.55vw, 1.18rem);
  font-weight: 800;
}

.paper-thesis strong {
  flex-basis: 100%;
  color: var(--honest-yellow);
  font-size: clamp(0.92rem, 1.35vw, 1.06rem);
  font-weight: 900;
}

.paper-illustration {
  margin: 0;
  border: 1px solid rgba(5, 167, 225, 0.28);
  border-radius: var(--radius);
  background: var(--honest-blue);
  overflow: hidden;
  box-shadow: 0 18px 48px rgba(31, 82, 122, 0.13);
}

.paper-illustration img {
  width: 100%;
  height: auto;
}

.paper-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.74);
  overflow: hidden;
}

.paper-meta div {
  padding: 16px;
  border-right: 1px solid var(--line);
}

.paper-meta div:last-child {
  border-right: 0;
}

.paper-meta dt {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.paper-meta dd {
  margin: 7px 0 0;
  color: var(--navy);
  font-weight: 850;
  font-size: 0.96rem;
  overflow-wrap: anywhere;
}

.paper-meta a,
.reference-list a {
  color: var(--sky-deep);
}

.paper-section h2 {
  margin: 0 0 20px;
  color: var(--navy);
  font-size: clamp(1.8rem, 3.5vw, 3.15rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.paper-section h3 {
  margin: 34px 0 10px;
  color: var(--navy);
  font-size: 1.35rem;
  line-height: 1.15;
}

.paper-section p,
.paper-section li {
  color: #253448;
  font-size: 1.03rem;
}

.paper-section p {
  max-width: 820px;
}

.paper-table {
  width: 100%;
  margin: 26px 0 0;
  border-collapse: collapse;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: table;
}

.paper-table th,
.paper-table td {
  padding: 15px 16px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.paper-table th {
  color: var(--navy);
  background: #eef8ff;
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.04em;
}

.paper-table td {
  color: #253448;
}

.paper-table.compact th {
  width: 220px;
}

.architecture-map {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  margin: 26px 0;
}

.architecture-map div {
  min-height: 88px;
  display: flex;
  align-items: flex-end;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #ffffff, #eff9ff);
  color: var(--navy);
  font-weight: 900;
  line-height: 1.12;
}

.ecosystem-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
}

.ecosystem-strip span {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 0 14px;
  border: 1px solid rgba(5, 167, 225, 0.24);
  border-radius: 999px;
  background: linear-gradient(180deg, #ffffff, #eef9ff);
  color: var(--navy);
  font-size: 0.86rem;
  font-weight: 900;
  box-shadow: 0 12px 32px rgba(31, 82, 122, 0.08);
}

.ecosystem-strip img {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  border-radius: 50%;
  object-fit: contain;
}

.formula-stack {
  display: grid;
  gap: 10px;
  margin: 24px 0;
}

.formula-stack code {
  display: block;
  padding: 13px 15px;
  border: 1px solid rgba(18, 29, 43, 0.1);
  border-left: 4px solid var(--honest-blue);
  border-radius: 8px;
  background: #f7fbff;
  color: var(--navy);
  font-size: 0.95rem;
  line-height: 1.5;
  white-space: normal;
  overflow-wrap: anywhere;
}

.paper-note {
  padding: 16px 18px;
  border-left: 4px solid var(--honest-yellow);
  border-radius: var(--radius);
  background: rgba(255, 225, 72, 0.14);
  color: var(--ink-soft);
  font-weight: 700;
}

.risk-list,
.reference-list {
  display: grid;
  gap: 10px;
  padding-left: 22px;
}

.paper-roadmap {
  display: grid;
  gap: 0;
  padding: 0;
  margin: 24px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  list-style: none;
  overflow: hidden;
}

.paper-roadmap li {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 20px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

.paper-roadmap li:last-child {
  border-bottom: 0;
}

.paper-roadmap strong {
  color: var(--navy);
}

.paper-roadmap span {
  color: #253448;
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav-links {
    display: none;
  }

  .hero {
    min-height: 940px;
  }

  .hero-media img {
    object-position: center top;
  }

  .hero-mark {
    margin-bottom: 230px;
  }

  .intro-grid,
  .vault-grid,
  .risk {
    grid-template-columns: 1fr;
  }

  .flow-panel,
  .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .flow-step:nth-child(2) {
    border-right: 0;
  }

  .chapter-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .chapter-list article:nth-child(2n) {
    border-right: 0;
  }

  .site-footer {
    grid-template-columns: 1fr;
  }

  .whitepaper-shell {
    grid-template-columns: 1fr;
  }

  .paper-toc {
    position: static;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .architecture-map {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .paper-meta {
    grid-template-columns: 1fr;
  }

  .paper-meta div {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .paper-meta div:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 640px) {
  .site-header {
    top: 10px;
    width: calc(100% - 20px);
    padding: 8px 10px;
  }

  .hnst-logo {
    font-size: 0.9rem;
  }

  .nav-cta {
    min-height: 34px;
    padding: 0 12px;
    font-size: 0.78rem;
  }

  .nav-link-cta {
    display: none;
  }

  .whitepaper-nav .nav-actions {
    gap: 6px;
  }

  .whitepaper-nav .nav-link-cta {
    min-height: 34px;
    display: inline-flex;
    padding: 0 9px;
    font-size: 0.72rem;
  }

  .whitepaper-nav .nav-cta {
    padding: 0 9px;
    font-size: 0.72rem;
  }

  .hero {
    min-height: 850px;
    align-items: start;
    padding: 104px 18px 54px;
  }

  .hero-media {
    height: 100%;
  }

  .hero-media img {
    object-fit: cover;
    object-position: 50% 0%;
    transform: scale(1.02);
    transform-origin: top center;
  }

  .hero-media::after {
    background:
      linear-gradient(180deg, rgba(246, 252, 255, 0.04) 0%, rgba(246, 252, 255, 0.18) 35%, rgba(248, 251, 255, 0.92) 86%, rgba(248, 251, 255, 1) 100%),
      radial-gradient(circle at 50% 52%, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0) 48%);
  }

  .hero-content {
    padding-top: 0;
    transform: translateY(-34px);
  }

  .hero-mark {
    margin-bottom: 170px;
  }

  .chain-line {
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 10px;
  }

  h1 {
    font-size: clamp(2.8rem, 17vw, 4.9rem);
  }

  .section-pad {
    padding-top: 76px;
    padding-bottom: 76px;
  }

  .vault-card {
    min-height: 0;
  }

  .metric-list div {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .mechanism-grid,
  .flow-panel,
  .timeline,
  .chapter-list {
    grid-template-columns: 1fr;
  }

  .flow-step,
  .timeline li,
  .chapter-list article {
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .flow-step:last-child,
  .timeline li:last-child,
  .chapter-list article:last-child {
    border-bottom: 0;
  }

  .footer-links {
    flex-direction: column;
    gap: 10px;
  }

  .whitepaper-nav {
    width: calc(100% - 20px);
  }

  .whitepaper-shell {
    width: calc(100% - 20px);
    margin-top: 18px;
    margin-bottom: 58px;
  }

  .paper-toc {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .paper-cover,
  .paper-section {
    padding: 28px 18px;
  }

  .architecture-map,
  .paper-roadmap li {
    grid-template-columns: 1fr;
  }

  .paper-table {
    display: block;
    overflow-x: auto;
    white-space: normal;
  }
}