@font-face {
  font-family: "04b19";
  src: url("/assets/fonts/04B_19.ttf") format("truetype");
  font-display: swap;
}

:root {
  color-scheme: light;
  --bg-main: #fafafa;
  --bg-secondary: #f1f1ef;
  --bg-tertiary: #e7e2d3;
  --surface: #ffffff;
  --surface-strong: #f8f3e2;
  --text: #0a0a0a;
  --text-muted: rgba(10, 10, 10, 0.62);
  --border: rgba(10, 10, 10, 0.12);
  --gold: #d99b19;
  --gold-strong: #b67600;
  --gold-soft: rgba(217, 155, 25, 0.18);
  --cyan: #3aa6a6;
  --green: #69a979;
  --shadow: rgba(10, 10, 10, 0.12);
  --header: rgba(250, 250, 250, 0.82);
}

.dark {
  color-scheme: dark;
  --bg-main: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #191713;
  --surface: #141414;
  --surface-strong: #1c170c;
  --text: #fafafa;
  --text-muted: rgba(250, 250, 250, 0.68);
  --border: rgba(250, 250, 250, 0.12);
  --gold: #f6c343;
  --gold-strong: #ffd972;
  --gold-soft: rgba(246, 195, 67, 0.16);
  --cyan: #69c8c8;
  --green: #8bc99b;
  --shadow: rgba(0, 0, 0, 0.4);
  --header: rgba(10, 10, 10, 0.78);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  scroll-behavior: smooth;
  background: var(--bg-main);
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg-main);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: 0;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
}

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

p,
h1,
h2,
h3,
pre {
  margin: 0;
}

button,
input,
textarea,
select {
  font: inherit;
}

::selection {
  background: var(--gold);
  color: #0a0a0a;
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.material-symbols-outlined {
  direction: ltr;
  display: inline-block;
  font-family: "Material Symbols Outlined";
  font-size: 1.15rem;
  font-style: normal;
  font-weight: normal;
  letter-spacing: 0;
  line-height: 1;
  text-rendering: optimizeLegibility;
  text-transform: none;
  white-space: nowrap;
  word-wrap: normal;
  -webkit-font-feature-settings: "liga";
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: fixed;
  left: 1rem;
  top: 1rem;
  z-index: 200;
  transform: translateY(-140%);
  border: 1px solid var(--gold);
  border-radius: 8px;
  background: var(--bg-main);
  color: var(--text);
  padding: 0.65rem 0.9rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  font-weight: 700;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  border-bottom: 1px solid var(--border);
  background: var(--header);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.header-inner {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1200px;
  padding: 1rem 1.25rem;
}

.brand {
  align-items: center;
  display: inline-flex;
  gap: 0.9rem;
  min-width: 0;
}

.brand-mark {
  color: var(--gold);
  display: inline-block;
  font-family: "04b19", "JetBrains Mono", monospace;
  font-size: 1.75rem;
  line-height: 1;
  letter-spacing: 0;
  text-rendering: optimizeSpeed;
}

.brand-sub {
  color: var(--text-muted);
  display: none;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.68rem;
  font-weight: 700;
  line-height: 1.2;
  max-width: 11rem;
  text-transform: uppercase;
}

.desktop-nav,
.mobile-actions {
  align-items: center;
  display: flex;
  gap: 1rem;
}

.desktop-nav {
  display: none;
}

.desktop-nav a {
  color: var(--gold);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}

.desktop-nav a:hover,
.desktop-nav a:focus-visible {
  color: var(--gold-strong);
}

.nav-pill {
  border: 1px solid color-mix(in srgb, var(--gold) 65%, transparent);
  border-radius: 999px;
  padding: 0.6rem 1rem;
}

.icon-button {
  align-items: center;
  appearance: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--gold);
  cursor: pointer;
  display: inline-flex;
  height: 2.5rem;
  justify-content: center;
  padding: 0;
  width: 2.5rem;
}

.icon-button:hover {
  border-color: var(--gold);
  background: var(--gold-soft);
}

.light-icon {
  display: inline-block;
}

.dark-icon,
.dark .light-icon {
  display: none;
}

.dark .dark-icon {
  display: inline-block;
}

.menu-lines {
  display: grid;
  gap: 0.22rem;
  width: 1.05rem;
}

.menu-lines span {
  background: currentColor;
  display: block;
  height: 1px;
  width: 100%;
}

.menu-button[aria-expanded="true"] .menu-lines span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

.menu-button[aria-expanded="true"] .menu-lines span:nth-child(2) {
  opacity: 0;
}

.menu-button[aria-expanded="true"] .menu-lines span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.mobile-menu {
  border-top: 1px solid var(--border);
  display: grid;
  gap: 0.25rem;
  padding: 1rem 1.25rem 1.25rem;
}

.mobile-menu a {
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 1rem;
  text-transform: uppercase;
}

.hero {
  border-bottom: 1px solid var(--border);
  min-height: calc(100vh - 73px);
  overflow: hidden;
  position: relative;
}

.dither {
  background-image: radial-gradient(color-mix(in srgb, var(--gold) 35%, transparent) 0.7px, transparent 0.7px);
  background-size: 9px 9px;
  inset: 0;
  opacity: 0.22;
  pointer-events: none;
  position: absolute;
}

#settlement-canvas {
  height: 100%;
  inset: 0;
  opacity: 0.74;
  pointer-events: none;
  position: absolute;
  width: 100%;
}

.hero-inner {
  align-items: center;
  display: grid;
  gap: 2rem;
  margin: 0 auto;
  max-width: 1200px;
  min-height: calc(100vh - 73px);
  padding: 4.5rem 1.25rem;
  position: relative;
  z-index: 2;
}

.hero-copy {
  max-width: 640px;
}

.pill-row {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.status-pill,
.fine-label,
.section-label,
.card-index,
.panel-state {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.status-pill {
  border: 1px solid color-mix(in srgb, var(--gold) 65%, transparent);
  border-radius: 999px;
  color: var(--gold);
  padding: 0.55rem 0.85rem;
}

.fine-label,
.section-label,
.card-index {
  color: var(--text-muted);
}

h1 {
  color: var(--gold);
  font-family: "04b19", "JetBrains Mono", monospace;
  font-size: 4rem;
  font-weight: 400;
  line-height: 0.96;
  letter-spacing: 0;
  margin-bottom: 1.35rem;
}

.hero-lede {
  color: var(--text);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.12;
  margin-bottom: 1.35rem;
  max-width: 720px;
}

.hero-body {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.75;
  max-width: 610px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.button {
  align-items: center;
  border-radius: 999px;
  display: inline-flex;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  font-weight: 700;
  gap: 0.5rem;
  justify-content: center;
  min-height: 3.25rem;
  padding: 0.85rem 1.25rem;
  text-transform: uppercase;
}

.button.primary {
  background: var(--gold);
  color: #0a0a0a;
}

.button.secondary {
  border: 1px solid var(--gold);
  color: var(--gold);
}

.button:hover {
  transform: translateY(-1px);
}

.hero-panel {
  align-self: end;
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 22px 72px -42px var(--shadow);
  max-width: 460px;
  padding: 1.25rem;
  position: relative;
}

.panel-top {
  align-items: center;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 1rem;
}

.panel-state {
  color: var(--gold);
}

.stack-diagram {
  display: grid;
  gap: 0.8rem;
}

.stack-node {
  border: 1px solid var(--border);
  border-radius: 8px;
  display: grid;
  gap: 0.25rem;
  padding: 1rem;
}

.stack-node span {
  color: var(--gold);
  font-family: "04b19", "JetBrains Mono", monospace;
  font-size: 1.25rem;
  line-height: 1;
}

.stack-node-evx span,
.stack-node-btx span {
  font-family: "JetBrains Mono", monospace;
  font-weight: 700;
}

.stack-node strong {
  font-size: 0.95rem;
}

.stack-node small {
  color: var(--text-muted);
}

.stack-node-evx span {
  color: var(--cyan);
}

.stack-node-btx span {
  color: var(--green);
}

.stack-line {
  background: linear-gradient(180deg, var(--gold), transparent);
  height: 1.15rem;
  margin: -0.2rem auto;
  width: 1px;
}

.section {
  border-bottom: 1px solid var(--border);
  padding: 4.75rem 1.25rem;
}

.section-inner {
  margin: 0 auto;
  max-width: 1200px;
}

.section-inner.narrow {
  max-width: 820px;
  text-align: center;
}

.section-label {
  color: var(--gold);
  display: block;
  margin-bottom: 1rem;
}

h2 {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.12;
  max-width: 820px;
}

h3 {
  font-size: 1.15rem;
  line-height: 1.25;
}

.section p {
  color: var(--text-muted);
}

.thesis-section {
  background: var(--bg-secondary);
}

.thesis-section p {
  font-size: 1.1rem;
  line-height: 1.8;
  margin-top: 1.5rem;
}

.section-heading {
  margin-bottom: 2rem;
}

.section-heading p,
.split p,
.contact-inner p {
  font-size: 1.04rem;
  line-height: 1.75;
  margin-top: 1.25rem;
  max-width: 680px;
}

.feature-grid {
  display: grid;
  gap: 1rem;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: grid;
  gap: 1rem;
  min-height: 19rem;
  padding: 1.35rem;
}

.feature-card:hover {
  border-color: color-mix(in srgb, var(--gold) 45%, var(--border));
  transform: translateY(-2px);
}

.card-icon {
  color: var(--gold);
  font-size: 2rem;
  margin-left: auto;
}

.feature-card p,
.architecture-list p,
.control-item p {
  font-size: 0.96rem;
  line-height: 1.7;
}

.contrast {
  background: var(--bg-secondary);
}

.split {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}

.terminal-panel {
  align-self: stretch;
  background: #050505;
  border: 1px solid rgba(246, 195, 67, 0.22);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.86);
  min-height: 18rem;
  overflow: hidden;
  padding: 1.25rem;
}

.terminal-dots {
  display: flex;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}

.terminal-dots span {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  display: block;
  height: 0.7rem;
  width: 0.7rem;
}

.terminal-panel pre {
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

.terminal-panel code {
  color: rgba(255, 255, 255, 0.78);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.84rem;
  line-height: 1.9;
}

.architecture-list {
  display: grid;
  gap: 1rem;
}

.architecture-list article {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.35rem;
}

.architecture-list span {
  color: var(--gold);
  display: block;
  font-family: "JetBrains Mono", monospace;
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 1rem;
}

.architecture-list article:nth-child(2) span {
  color: var(--cyan);
}

.architecture-list article:nth-child(3) span {
  color: var(--green);
}

.architecture-list h3 {
  margin-bottom: 0.65rem;
}

.controls-inner {
  display: grid;
  gap: 2rem;
}

.control-list {
  display: grid;
  gap: 1rem;
}

.control-item {
  align-items: start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: grid;
  gap: 1rem;
  grid-template-columns: auto 1fr;
  padding: 1.25rem;
}

.control-item > .material-symbols-outlined {
  align-items: center;
  background: var(--gold-soft);
  border-radius: 8px;
  color: var(--gold);
  display: inline-flex;
  font-size: 1.45rem;
  height: 2.7rem;
  justify-content: center;
  width: 2.7rem;
}

.control-item h3 {
  margin-bottom: 0.45rem;
}

.proof-section {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--gold) 9%, transparent), transparent 42%),
    var(--bg-main);
}

.proof-band {
  background: var(--surface-strong);
  border: 1px solid color-mix(in srgb, var(--gold) 25%, var(--border));
  border-radius: 8px;
  padding: 1.5rem;
}

.proof-band p {
  font-size: 1.05rem;
  line-height: 1.75;
  margin-top: 1.25rem;
  max-width: 780px;
}

.metric-row {
  display: grid;
  gap: 0.85rem;
  margin-top: 2rem;
}

.metric-row div {
  border-top: 1px solid var(--border);
  display: grid;
  gap: 0.35rem;
  padding-top: 1rem;
}

.metric-row span {
  color: var(--gold);
  font-family: "JetBrains Mono", monospace;
  font-size: 1.15rem;
  font-weight: 700;
}

.metric-row small {
  color: var(--text-muted);
}

.contact-section {
  background: var(--bg-secondary);
}

.contact-inner {
  align-items: center;
  display: grid;
  gap: 2rem;
}

.contact-card {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--gold);
  border-radius: 8px;
  color: var(--text);
  display: flex;
  gap: 1rem;
  padding: 1.25rem;
}

.contact-card .material-symbols-outlined {
  color: var(--gold);
  font-size: 2rem;
}

.contact-card span:last-child {
  display: grid;
  gap: 0.2rem;
}

.contact-card small {
  color: var(--text-muted);
}

.site-footer {
  background: var(--bg-main);
  padding: 2rem 1.25rem;
}

.footer-inner {
  align-items: center;
  display: grid;
  gap: 1rem;
  margin: 0 auto;
  max-width: 1200px;
}

.footer-inner p {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links a {
  color: var(--gold);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

@media (min-width: 680px) {
  .brand-sub {
    display: inline-block;
  }

  h1 {
    font-size: 5.25rem;
  }

  .hero-lede {
    font-size: 2.45rem;
  }

  h2 {
    font-size: 2.45rem;
  }

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

@media (min-width: 900px) {
  .desktop-nav {
    display: flex;
  }

  .mobile-actions,
  .mobile-menu {
    display: none;
  }

  .header-inner {
    padding: 1.1rem 1.5rem;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.75fr);
    padding: 6.5rem 1.5rem;
  }

  .hero-panel {
    justify-self: end;
  }

  .section {
    padding: 6.5rem 1.5rem;
  }

  .feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .split {
    grid-template-columns: minmax(0, 1fr) minmax(340px, 0.72fr);
    gap: 3rem;
  }

  .architecture-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .controls-inner {
    grid-template-columns: 0.82fr 1fr;
    gap: 4rem;
  }

  .sticky-heading {
    align-self: start;
    position: sticky;
    top: 7rem;
  }

  .proof-band {
    padding: 2.25rem;
  }

  .metric-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .contact-inner {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.55fr);
  }

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

@media (max-width: 420px) {
  .header-inner {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .brand {
    gap: 0.5rem;
  }

  .brand-mark {
    font-size: 1.45rem;
  }

  h1 {
    font-size: 3.1rem;
  }

  .hero-lede {
    font-size: 1.65rem;
  }

  .button {
    width: 100%;
  }

  .panel-top {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.35rem;
  }

  .control-item {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}