:root {
  --bg: #061118;
  --bg-deep: #030b10;
  --bg-soft: #10232b;
  --panel: rgba(12, 28, 36, 0.88);
  --panel-strong: #0a1a21;
  --line: rgba(177, 219, 230, 0.16);
  --line-strong: rgba(177, 219, 230, 0.28);
  --text: #f5f2e8;
  --muted: #b6cbd0;
  --amber: #f2ba55;
  --cyan: #6fe7d2;
  --rose: #ff8e78;
  --blue: #8db9ff;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.34);
  --radius: 28px;
  --radius-sm: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 2%, rgba(242, 186, 85, 0.19), transparent 25rem),
    radial-gradient(circle at 88% 15%, rgba(111, 231, 210, 0.15), transparent 28rem),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg) 42%, #09171d 100%);
  font-family: 'Avenir Next', 'Century Gothic', 'Trebuchet MS', sans-serif;
}

body::before {
  content: '';
  position: fixed;
  z-index: 0;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at center, black 42%, transparent 100%);
}

a {
  text-underline-offset: 0.18em;
}

.site-shell {
  width: min(1320px, calc(100% - 48px));
  margin: 0 auto;
  padding: 26px 0 48px;
}

.topbar,
.hero,
.how-section,
.mission-section,
.arweave-section,
.proof-section,
.examples-section,
.footer,
.policy-page,
.library-detail {
  position: relative;
  z-index: 1;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 8px 0 30px;
}

.brand {
  flex: 0 0 auto;
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.015em;
  text-decoration: none;
}

.topnav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 18px;
}

.topnav a,
.footer a {
  color: var(--muted);
  text-decoration: none;
}

.topnav a:hover,
.brand:hover,
.footer a:hover {
  color: #fff;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(360px, 0.84fr);
  gap: clamp(30px, 5vw, 72px);
  align-items: center;
  min-height: min(760px, calc(100vh - 104px));
  padding: 36px 0 96px;
}

.hero-copy,
.hero-panel {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--amber);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 0.98;
}

h1 {
  max-width: 11ch;
  font-size: clamp(4.1rem, 7.2vw, 6.2rem);
  letter-spacing: -0.075em;
}

h2 {
  max-width: 15ch;
  font-size: clamp(2.35rem, 4.8vw, 4.25rem);
  letter-spacing: -0.055em;
}

h3 {
  font-size: clamp(1.3rem, 2vw, 1.65rem);
  letter-spacing: -0.035em;
}

.hero-text,
.split-heading > p,
.mode-card p,
.mission-copy p,
.arweave-copy p,
.permanence-facts span,
.proof-card p,
.examples-heading > p,
.frontier-card p,
.example-card p,
.panel-note,
.docs-cta p,
.footer p {
  color: var(--muted);
  line-height: 1.65;
}

.hero-text {
  max-width: 58ch;
  margin: 24px 0 0;
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
}

.button-primary {
  color: #071118;
  border-color: transparent;
  background: linear-gradient(135deg, var(--amber), #f5d796);
}

.button-primary:hover {
  filter: brightness(1.06);
}

.button-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.035);
}

.button-secondary:hover {
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, 0.065);
}

.signal-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: 28px;
  color: var(--muted);
  font-size: 0.95rem;
}

.signal-row span {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
}

.signal-row span + span::before {
  content: '/';
  margin-right: 16px;
  color: rgba(255, 255, 255, 0.22);
}

.signal-row strong {
  color: var(--text);
}

.hero-panel,
.mode-card,
.mission-panel,
.arweave-panel,
.proof-card,
.frontier-card,
.example-card,
.footer {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-panel {
  padding: 18px;
  border-radius: var(--radius);
}

.terminal-card {
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 22px;
  background: #040c11;
}

.terminal-bar {
  display: flex;
  gap: 8px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.04);
}

.terminal-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
}

pre,
code {
  font-family: 'SFMono-Regular', 'Cascadia Code', 'Liberation Mono', monospace;
}

pre {
  max-width: 100%;
  margin: 0;
  overflow-x: auto;
  font-size: 0.84rem;
  line-height: 1.55;
}

.terminal-card pre {
  padding: 20px;
}

.panel-note {
  margin: 16px 4px 2px;
  font-size: 0.93rem;
}

.how-section,
.mission-section,
.arweave-section,
.proof-section,
.examples-section {
  padding: 0 0 96px;
  scroll-margin-top: 28px;
}

.section-heading {
  margin-bottom: 28px;
}

.split-heading {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.75fr);
  gap: 32px;
  align-items: end;
}

.split-heading > p {
  max-width: 58ch;
  margin: 0 0 4px;
  font-size: 1.06rem;
}

.mode-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.mode-card {
  display: grid;
  grid-template-rows: auto auto 1fr auto;
  gap: 16px;
  min-width: 0;
  padding: 28px;
  border-radius: var(--radius);
}

.mode-number {
  color: var(--muted);
  font-family: 'SFMono-Regular', 'Cascadia Code', 'Liberation Mono', monospace;
  font-size: 0.8rem;
}

.mode-card p {
  margin: 0;
}

.mode-card a,
.frontier-card a,
.proof-card a,
.source-links a {
  color: var(--amber);
  text-decoration: none;
}

.mode-card a:hover,
.frontier-card a:hover,
.proof-card a:hover,
.source-links a:hover {
  color: #fff;
}

.accent-amber {
  box-shadow: inset 0 0 0 1px rgba(242, 186, 85, 0.2), var(--shadow);
}

.accent-cyan {
  box-shadow: inset 0 0 0 1px rgba(111, 231, 210, 0.2), var(--shadow);
}

.accent-rose {
  box-shadow: inset 0 0 0 1px rgba(255, 142, 120, 0.2), var(--shadow);
}

.mission-panel {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(32px, 6vw, 76px);
  padding: clamp(30px, 5vw, 58px);
  border-color: rgba(242, 186, 85, 0.28);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(242, 186, 85, 0.11), transparent 48%),
    var(--panel);
}

.mission-copy {
  display: grid;
  gap: 20px;
}

.mission-copy p {
  margin: 0;
}

.mission-copy .mission-statement {
  color: var(--text);
  font-size: clamp(1.4rem, 2.5vw, 2.15rem);
  letter-spacing: -0.035em;
  line-height: 1.3;
}

.arweave-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  gap: 30px;
  padding: clamp(28px, 4vw, 44px);
  border-color: rgba(111, 231, 210, 0.24);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 12% 8%, rgba(111, 231, 210, 0.13), transparent 38%),
    var(--panel);
}

.arweave-copy {
  display: grid;
  align-content: start;
  gap: 18px;
}

.arweave-copy p {
  margin: 0;
}

.arweave-copy .arweave-lead {
  color: var(--text);
  font-size: clamp(1.35rem, 2.5vw, 1.95rem);
  letter-spacing: -0.03em;
  line-height: 1.35;
}

.source-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin-top: 4px;
}

.permanence-facts {
  display: grid;
  gap: 12px;
}

.permanence-facts article {
  display: grid;
  gap: 7px;
  padding: 19px 20px;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 19px;
  background: rgba(255, 255, 255, 0.03);
}

.permanence-facts strong {
  color: var(--cyan);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.proof-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 20px;
  align-items: center;
  min-width: 0;
  padding: 26px;
  border-radius: var(--radius);
}

.proof-card p {
  margin: 8px 0 0;
}

.proof-label {
  padding: 7px 10px;
  border-radius: 999px;
  color: #07131a;
  background: var(--cyan);
  font-family: 'SFMono-Regular', 'Cascadia Code', 'Liberation Mono', monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.proof-label-encrypted {
  background: var(--amber);
}

.proof-links {
  display: grid;
  gap: 8px;
  justify-items: end;
  font-family: 'SFMono-Regular', 'Cascadia Code', 'Liberation Mono', monospace;
  font-size: 0.84rem;
}

.examples-section {
  padding-top: 34px;
  border-top: 1px solid var(--line);
}

.examples-heading {
  display: grid;
  gap: 14px;
  max-width: 900px;
}

.examples-heading h2 {
  max-width: 18ch;
}

.examples-heading > p {
  max-width: 72ch;
  margin: 0;
  font-size: 1.06rem;
}

.frontier-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.frontier-card {
  display: grid;
  grid-template-rows: auto auto auto 1fr auto;
  gap: 16px;
  min-width: 0;
  padding: 28px;
  border-radius: var(--radius);
}

.frontier-card p {
  margin: 0;
}

.frontier-meta {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-family: 'SFMono-Regular', 'Cascadia Code', 'Liberation Mono', monospace;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.frontier-meta span {
  color: var(--text);
}

.preserve-line {
  padding-top: 15px;
  border-top: 1px solid var(--line);
}

.preserve-line strong {
  color: var(--text);
}

.accent-openai {
  box-shadow: inset 0 3px 0 var(--text), var(--shadow);
}

.accent-anthropic {
  box-shadow: inset 0 3px 0 var(--rose), var(--shadow);
}

.accent-gemini {
  box-shadow: inset 0 3px 0 var(--blue), var(--shadow);
}

.accent-alpha {
  box-shadow: inset 0 3px 0 var(--cyan), var(--shadow);
}

.api-examples {
  padding-top: 76px;
}

.compact-heading {
  display: grid;
  gap: 8px;
}

.api-example-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.example-card {
  min-width: 0;
  padding: 22px;
  border-radius: var(--radius);
}

.example-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.example-header span {
  color: var(--amber);
  font-family: 'SFMono-Regular', 'Cascadia Code', 'Liberation Mono', monospace;
  font-size: 0.8rem;
}

.example-card pre {
  padding: 17px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  overflow-x: hidden;
  overflow-wrap: anywhere;
  background: #040c11;
  font-size: 0.76rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.example-card p {
  margin: 16px 0 0;
  font-size: 0.94rem;
}

.docs-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 18px;
  padding: 22px 24px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.025);
}

.docs-cta p {
  margin: 0;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 24px;
  border-radius: 24px;
}

.footer > div {
  display: grid;
  gap: 4px;
}

.footer p {
  margin: 0;
}

.footer nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 16px;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-copy {
  animation: rise-in 600ms ease-out both;
}

.hero-panel {
  animation: rise-in 600ms 110ms ease-out both;
}

.policy-shell {
  max-width: 960px;
}

.policy-page {
  display: grid;
  gap: 22px;
  padding: 28px 0 64px;
}

.policy-page > h1 {
  max-width: 12ch;
  margin-bottom: 4px;
  font-size: clamp(3.6rem, 10vw, 7rem);
}

.policy-lead {
  max-width: 68ch;
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 1.2rem;
  line-height: 1.7;
}

.policy-card,
.policy-contact {
  padding: clamp(24px, 5vw, 40px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.policy-card h2,
.policy-contact h2 {
  max-width: none;
  margin-bottom: 18px;
  font-size: clamp(1.7rem, 4vw, 2.5rem);
}

.policy-card p,
.policy-card li,
.policy-contact p {
  color: var(--muted);
  line-height: 1.7;
}

.policy-card p:last-child,
.policy-contact p:last-child {
  margin-bottom: 0;
}

.policy-card li + li {
  margin-top: 8px;
}

.policy-card a,
.policy-contact a {
  color: var(--amber);
}

.support-warning {
  border-color: rgba(255, 142, 120, 0.45);
  box-shadow: inset 0 0 0 1px rgba(255, 142, 120, 0.16), var(--shadow);
}

.policy-contact {
  background:
    linear-gradient(135deg, rgba(111, 231, 210, 0.1), transparent 55%),
    var(--panel);
}

.policy-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.library-detail-shell {
  max-width: 1040px;
}

.library-detail {
  display: grid;
  gap: 26px;
  padding: 24px 0 64px;
}

.library-detail > h1 {
  max-width: 14ch;
  font-size: clamp(3rem, 8vw, 6rem);
}

.library-summary {
  max-width: 70ch;
  margin: -8px 0 12px;
  color: var(--muted);
  font-size: 1.15rem;
  line-height: 1.65;
}

.library-content-panel,
.library-metadata-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.library-content-panel {
  padding: clamp(24px, 5vw, 46px);
  box-shadow: inset 0 0 0 1px rgba(111, 231, 210, 0.18), var(--shadow);
}

.library-content-panel h2,
.library-metadata-panel h2 {
  margin-bottom: 24px;
  font-size: clamp(2rem, 5vw, 3.2rem);
}

.library-content-panel pre {
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  overflow-wrap: anywhere;
  color: var(--text);
  background: #061015;
  font-family: 'Avenir Next', 'Century Gothic', 'Trebuchet MS', sans-serif;
  font-size: 1.04rem;
  line-height: 1.75;
  white-space: pre-wrap;
}

.library-metadata-panel {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
  gap: 28px;
  padding: 30px;
}

.library-metadata-panel dl {
  display: grid;
  gap: 14px;
  margin: 0;
}

.library-metadata-panel dl div {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}

.library-metadata-panel dt {
  color: var(--muted);
}

.library-metadata-panel dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.library-tags {
  display: flex;
  grid-column: 1 / -1;
  flex-wrap: wrap;
  gap: 8px;
}

.library-tags span,
.library-storage > span {
  padding: 7px 10px;
  border-radius: 999px;
  color: #07131a;
  background: var(--cyan);
  font-size: 0.82rem;
  font-weight: 600;
}

.library-storage {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.025);
}

.library-storage a {
  color: var(--amber);
}

.library-storage code {
  overflow-wrap: anywhere;
  color: var(--muted);
}

@media (max-width: 1180px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
    min-height: auto;
    padding-top: 48px;
  }

  .hero-copy {
    max-width: 880px;
  }

  .hero-panel {
    width: min(100%, 820px);
  }

  h1 {
    max-width: 12ch;
    font-size: clamp(4.25rem, 10vw, 7rem);
  }

  .api-example-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .example-card pre {
    font-size: 0.84rem;
  }
}

@media (max-width: 880px) {
  .site-shell {
    width: min(100% - 32px, 1320px);
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
  }

  .topnav {
    justify-content: flex-start;
  }

  .split-heading,
  .mode-grid,
  .mission-panel,
  .arweave-panel,
  .proof-grid,
  .frontier-grid,
  .library-metadata-panel {
    grid-template-columns: minmax(0, 1fr);
  }

  .proof-card {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .proof-links {
    grid-column: 2;
    justify-items: start;
    grid-auto-flow: column;
  }

  .docs-cta,
  .footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer nav {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .site-shell {
    width: min(100% - 22px, 1320px);
    padding-top: 16px;
  }

  .topbar {
    padding-bottom: 18px;
  }

  .topnav {
    gap: 9px 13px;
    font-size: 0.9rem;
  }

  .hero {
    gap: 26px;
    padding: 38px 0 70px;
  }

  h1 {
    max-width: 10ch;
    font-size: clamp(3.25rem, 16.5vw, 4.65rem);
  }

  h2 {
    font-size: clamp(2.25rem, 12vw, 3.25rem);
  }

  .signal-row {
    display: grid;
    gap: 8px;
  }

  .signal-row span + span::before {
    content: none;
  }

  .hero-panel,
  .mode-card,
  .mission-panel,
  .arweave-panel,
  .proof-card,
  .frontier-card,
  .example-card,
  .footer,
  .policy-card,
  .policy-contact,
  .library-content-panel,
  .library-metadata-panel {
    padding: 20px;
    border-radius: 21px;
  }

  .terminal-card pre {
    padding: 16px;
    font-size: 0.76rem;
  }

  .how-section,
  .mission-section,
  .arweave-section,
  .proof-section,
  .examples-section {
    padding-bottom: 70px;
  }

  .proof-card {
    grid-template-columns: minmax(0, 1fr);
  }

  .proof-label {
    width: fit-content;
  }

  .proof-links {
    grid-column: 1;
  }

  .frontier-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 6px;
  }

  .api-examples {
    padding-top: 58px;
  }

  .example-card pre {
    font-size: 0.72rem;
  }

  .library-metadata-panel dl div {
    grid-template-columns: minmax(0, 1fr);
    gap: 5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .hero-copy,
  .hero-panel {
    animation: none;
  }
}