:root {
  color-scheme: dark;
  --bg: #0a0a0a;
  --panel: #111111;
  --panel-2: #181818;
  --hover: #222222;
  --border: #2a2a2a;
  --border-strong: #333333;
  --text: #e8e8e8;
  --secondary: #a3a3a3;
  --muted: #737373;
  --writeup: #c8c8c8;
  --accent: #c8ff00;
  --on-accent: #0a0a0a;
  --card-bg: rgba(17, 17, 17, 0.9);
  --font-ui: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
  --topbar: 60px;
  --container: 1500px;
  --pad: 60px;
  --sidebar: 320px;
  --writeup-max: 840px;
  --radius-control: 2px;
  --duration: 150ms;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-ui);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
  border-radius: 0;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

:focus {
  outline: none;
}

:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 2px;
}

.skip {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--panel);
  color: var(--accent);
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  padding: 8px 12px;
  z-index: 1100;
}

.skip:focus {
  left: 16px;
}

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--topbar);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
}

.topbar-inner,
.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--pad);
  padding-right: var(--pad);
}

.topbar-inner {
  height: 60px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.wordmark {
  justify-self: start;
  color: var(--text);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: 4px;
  text-transform: uppercase;
  text-decoration: none;
}

.wordmark:hover {
  color: var(--text);
  text-decoration: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav a {
  color: var(--secondary);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  text-decoration: none;
  padding: 8px 16px;
  position: relative;
  transition: color var(--duration) ease;
}
.nav a:hover {
  color: #ffffff;
  text-decoration: none;
}


.nav a[aria-current="page"] {
  color: var(--accent);
}

.nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: -1px;
  height: 1px;
  background: var(--accent);
}

.menu-btn {
  display: none;
  justify-self: end;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 8px 14px;
  cursor: pointer;
  transition: color var(--duration) ease, border-color var(--duration) ease;
}

.menu-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}

main {
  padding-top: var(--topbar);
}

.hero {
  display: block;
  max-width: 900px;
  padding: 120px 0 80px;
}

.kicker {
  display: inline-block;
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(36px, 4.5vw, 60px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1px;
  text-wrap: balance;
  margin-bottom: 16px;
}

.support {
  color: var(--secondary);
  font-size: 18px;
  line-height: 1.6;
  max-width: 36em;
  margin-bottom: 24px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 12px 28px;
  border-radius: var(--radius-control);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: border-color var(--duration) ease, color var(--duration) ease;
}

.btn-primary {
  background: var(--accent);
  color: var(--on-accent);
  border: 1px solid var(--accent);
}

.btn-primary:hover {
  color: var(--on-accent);
  text-decoration: none;
  border-color: var(--text);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-strong);
}

.btn-outline:hover {
  color: var(--text);
  text-decoration: none;
  border-color: var(--accent);
}

.asm {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 190px;
  column-gap: 16px;
  row-gap: 0;
}

.asm-line,
.asm-note {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  min-height: 1.6em;
}

.asm-line {
  color: var(--text);
  white-space: pre;
}

.asm-cmt {
  color: var(--secondary);
}

.asm-note {
  color: var(--secondary);
}

.asm-note b {
  color: var(--accent);
  font-weight: 500;
  margin-right: 6px;
}

.figcap {
  margin-top: 10px;
  color: var(--secondary);
  font-size: 12px;
  line-height: 1.5;
}

.section {
  padding: 60px 0;
}

.section-title {
  font-size: clamp(24px, 2.6vw, 34px);
  font-weight: 700;
  line-height: 1.15;
  text-wrap: balance;
  margin-bottom: 40px;
}

.page-title {
  font-size: clamp(32px, 3vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.5px;
  text-wrap: balance;
  margin-bottom: 16px;
}

.bento {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.card {
  display: block;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 32px;
  color: var(--text);
  text-decoration: none;
  min-width: 0;
  transition: border-color var(--duration) ease;
}

.card:hover {
  border-color: var(--accent);
  text-decoration: none;
  color: var(--text);
}

.card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 12px;
}

.card p,
.prose p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--secondary);
}

.span-2 {
  grid-column: span 2;
}

.span-3 {
  grid-column: 1 / -1;
}

.tag {
  display: inline-block;
  margin: 8px 8px 0 0;
  padding: 4px 8px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  text-decoration: none;
}

.mono-block {
  margin-top: 12px;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
}

.topic {
  padding: 10px 0;
  border-top: 1px solid var(--border);
  font-size: 16px;
}

.pair {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 12px;
  padding: 8px 0;
  border-top: 1px solid var(--border);
  font-size: 16px;
}

.pair span {
  color: var(--secondary);
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.post-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 100%;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 32px;
  color: var(--text);
  text-decoration: none;
  transition: border-color var(--duration) ease;
}

a.post-card:hover {
  border-color: var(--accent);
  text-decoration: none;
  color: var(--text);
}

.post-card h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
}
.post-card p {
  color: var(--secondary);
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-self: flex-start;
}

.tag-row .tag {
  margin: 0;
}


.date,
.meta {
  color: var(--secondary);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
}

.strip {
  background: var(--panel);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.strip-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 60px 0;
}

.strip h2 {
  margin-bottom: 8px;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0 48px;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.footer a {
  color: var(--secondary);
  font-size: 13px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  text-decoration: none;
}

.footer a:hover {
  color: var(--accent);
}

.lead {
  max-width: 840px;
}

.lead p + p {
  margin-top: 16px;
}

.offer {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
}

.offer h3 {
  font-size: 22px;
  font-weight: 700;
}

.cols-4 {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--border);
  border-radius: 0;
}

.cols-4 div {
  padding: 20px;
  border-right: 1px solid var(--border);
}

.cols-4 div:last-child {
  border-right: 0;
}

.cols-4 strong {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 32px;
}

.panel + .panel,
.stack > * + * {
  margin-top: 16px;
}

.step {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 24px;
  padding: 32px 0;
  border-bottom: 1px solid var(--border);
}

.step-no {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.step h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 12px;
}

.fields {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.fields div,
.req {
  border-top: 1px solid var(--border);
  padding-top: 8px;
  font-size: 16px;
}

.req b {
  display: block;
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.research {
  display: grid;
  grid-template-columns: var(--sidebar) minmax(0, 1fr);
  gap: 32px;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: var(--topbar);
  max-height: calc(100vh - var(--topbar));
  overflow: auto;
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 24px;
}

.search {
  width: 100%;
  margin-bottom: 16px;
  padding: 10px 12px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  font-family: var(--font-ui);
  font-size: 16px;
}

.search:focus {
  border-color: var(--accent);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.filters button {
  background: transparent;
  color: var(--secondary);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 4px 8px;
  cursor: pointer;
  transition: color var(--duration) ease, border-color var(--duration) ease;
}

.filters button[aria-pressed="true"],
.filters button:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.side-list {
  list-style: none;
}

.side-list a,
.side-list li {
  display: block;
  padding: 12px 0 12px 12px;
  border-top: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
  font-size: 16px;
}

.side-list a[aria-current="page"],
.side-list a:hover {
  border-left: 1px solid var(--accent);
  color: var(--text);
  text-decoration: none;
}

.index-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.writeup-layout {
  display: grid;
  grid-template-columns: minmax(0, var(--writeup-max)) 240px;
  gap: 32px;
  justify-content: center;
  align-items: start;
}
@media (max-width: 1300px) {
  .writeup-layout {
    grid-template-columns: minmax(0, var(--writeup-max));
  }

  .toc {
    position: static;
    order: -1;
    border-left: 0;
    border-bottom: 1px solid var(--border);
    padding: 0 0 16px;
    margin-bottom: 16px;
  }
}


.writeup {
  max-width: var(--writeup-max);
  color: var(--writeup);
  font-size: 18px;
  line-height: 1.85;
}

.writeup h1 {
  font-size: clamp(32px, 3vw, 44px);
  margin-bottom: 24px;
}

.writeup h2 {
  color: var(--text);
  font-size: 28px;
  font-weight: 700;
  line-height: 1.2;
  margin: 48px 0 16px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  scroll-margin-top: 84px;
}

.writeup h3 {
  color: var(--text);
  font-size: 22px;
  font-weight: 600;
  margin: 32px 0 12px;
}

.writeup p {
  margin-bottom: 20px;
}

.writeup a {
  border-bottom: 1px solid transparent;
}

.writeup a:hover {
  border-bottom-color: var(--accent);
}

.writeup pre {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 16px;
  margin: 24px 0;
  overflow-x: auto;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
}

.writeup code {
  font-family: var(--font-mono);
  font-size: 14px;
}

.fact-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding: 12px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--secondary);
}

.toc {
  position: sticky;
  top: 84px;
  padding-left: 20px;
  border-left: 1px solid var(--border);
}

.toc a {
  display: block;
  margin-top: 10px;
  color: var(--secondary);
  font-size: 13px;
  text-decoration: none;
}

.toc a:hover,
.toc a.active {
  color: var(--accent);
}

.handle-row {
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 16px;
}

.spec {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.spec dt {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--secondary);
}

.scale {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  margin-top: 8px;
}

.scale div {
  padding-top: 12px;
  border-left: 1px solid var(--border);
  padding-left: 12px;
}

.mark {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 8px;
  background: var(--accent);
  border-radius: 0;
  vertical-align: middle;
}

.form-card {
  max-width: 100%;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 32px;
}

label {
  display: block;
  margin: 16px 0 6px;
  font-size: 16px;
}

input,
textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.6;
}

textarea {
  min-height: 8.5em;
  resize: vertical;
}

input:focus,
textarea:focus {
  border-color: var(--accent);
}

.note {
  margin-top: 16px;
  color: var(--secondary);
  font-size: 16px;
}

.empty {
  padding: 24px 0;
  color: var(--secondary);
}

@media (max-width: 1100px) {
  .bento,
  .post-grid,
  .index-grid {
    grid-template-columns: 1fr 1fr;
  }

  .span-2 {
    grid-column: span 2;
  }

  .cols-4 {
    grid-template-columns: 1fr 1fr;
  }

  .cols-4 div:nth-child(2) {
    border-right: 0;
  }
}

@media (max-width: 1100px) {
  .nav {
    display: none;
  }

  .nav.open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
    padding: 8px var(--pad) 16px;
  }

  .menu-btn {
    display: inline-flex;
  }

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

@media (max-width: 900px) {
  .hero,
  .research,
  .writeup-layout,
  .offer,
  .spec,
  .fields,
  .strip-row {
    grid-template-columns: 1fr;
  }
  [style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }


  .asm {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    max-height: none;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .toc {
    position: static;
    border-left: 0;
    border-bottom: 1px solid var(--border);
    padding: 0 0 16px;
    margin-bottom: 16px;
  }

  .scale {
    display: block;
    border-left: 1px solid var(--border);
    border-top: 0;
  }

  .cols-4 {
    grid-template-columns: 1fr;
  }

  .cols-4 div {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }
}

@media (max-width: 700px) {
  :root {
    --pad: 20px;
  }

  .bento,
  .post-grid,
  .index-grid,
  .span-2 {
    grid-template-columns: 1fr;
    grid-column: auto;
  }

  .span-2 {
    grid-column: auto;
  }

  .hero {
    padding-top: 32px;
  }

  h1 {
    font-size: 36px;
  }

  .strip-row,
  .footer-row {
    display: block;
  }

  .strip-row .btn {
    margin-top: 16px;
  }
  .actions {
    flex-direction: column;
    align-items: stretch;
  }

  .asm-line {
    white-space: pre-wrap;
  }

}

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

  *,
  *::before,
  *::after {
    transition: none !important;
  }
}