:root {
  --paper: #faf6ee;
  --paper-2: #f2ecde;
  --ink: #18160f;
  --ink-soft: #423c30;
  --ink-muted: #6b6555;
  --rule: #d6cfbe;
  --rule-soft: #ebe4d2;
  --signal: #c84a1a;
  --signal-soft: #f5e6dd;
  --bad: #a83f30;
  --max: 1180px;
  --radius: 6px;
  --font-display: "Iowan Old Style", "Palatino Linotype", "Cambria", "Georgia", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, "Helvetica Neue", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #14130f;
    --paper-2: #1c1a14;
    --ink: #ece5d4;
    --ink-soft: #c8c0a8;
    --ink-muted: #8a8576;
    --rule: #2e2a22;
    --rule-soft: #1f1d17;
    --signal: #f08152;
    --signal-soft: #2a1f17;
    --bad: #ea7160;
  }
}

* { box-sizing: border-box; }

html { font-size: 16px; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ink);
  background-color: var(--paper);
  background-image: radial-gradient(rgba(24, 22, 15, .045) 1px, transparent 1px);
  background-size: 26px 26px;
  background-position: 0 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

@media (prefers-color-scheme: dark) {
  body {
    background-image: radial-gradient(rgba(236, 229, 212, .04) 1px, transparent 1px);
  }
}

a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px dotted currentColor;
  transition: background 100ms;
}
a:hover { background: var(--signal-soft); }

code, pre {
  font-family: var(--font-mono);
  font-feature-settings: "ss01", "ss02";
}
code {
  background: var(--paper-2);
  padding: 0.1em 0.4em;
  border-radius: 3px;
  font-size: 0.86em;
  color: var(--ink);
}
pre {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--signal);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
  overflow-x: auto;
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.55;
}
pre code {
  background: transparent;
  padding: 0;
  border-radius: 0;
  font-size: 1em;
}

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.6rem;
}

/* --- Nav --- */
.topnav {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1.4rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  letter-spacing: 0.02em;
}
.brand {
  font-weight: 500;
  color: var(--ink);
}
.brand-bracket {
  color: var(--signal);
  font-weight: 600;
}
.topnav-links a {
  margin-left: 1.4rem;
  color: var(--ink-muted);
  border-bottom: none;
}
.topnav-links a:hover {
  color: var(--ink);
  background: transparent;
}

/* --- Hero --- */
.hero {
  padding: 0 0 5.5rem;
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.hero::after {
  content: "";
  position: absolute;
  left: 0; right: 0;
  bottom: -1px;
  height: 3px;
  background: linear-gradient(90deg, var(--signal) 0 12%, transparent 12% 100%);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--signal);
  margin: 4.5rem 0 1.4rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.6rem, 6.2vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -0.025em;
  margin: 0 0 1.6rem;
  max-width: 17ch;
  color: var(--ink);
}
.hero h1 em {
  font-style: italic;
  color: var(--signal);
  font-weight: 500;
}

.lede {
  font-size: 1.18rem;
  color: var(--ink-soft);
  max-width: 58ch;
  margin: 0 0 2.4rem;
  line-height: 1.55;
}
.lede strong {
  color: var(--ink);
  font-weight: 600;
}

.install {
  display: flex;
  align-items: stretch;
  max-width: 580px;
  margin-bottom: 1.6rem;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--signal);
  border-radius: var(--radius);
  background: var(--paper-2);
  overflow: hidden;
}
.install pre {
  flex: 1;
  border: none;
  border-left: none;
  border-radius: 0;
  background: transparent;
  margin: 0;
  padding: 0.92rem 1.05rem;
  font-size: 0.9rem;
}
.copy-btn {
  background: transparent;
  color: var(--ink-muted);
  border: none;
  border-left: 1px solid var(--rule);
  padding: 0 1.3rem;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 120ms, background 120ms;
}
.copy-btn:hover { color: var(--ink); background: var(--paper); }
.copy-btn.copied { color: var(--signal); }

.cta-row { display: flex; gap: 0.85rem; flex-wrap: wrap; margin-bottom: 2.4rem; }
.cta {
  display: inline-block;
  padding: 0.78rem 1.4rem;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.96rem;
  border: 1px solid transparent;
  transition: transform 100ms ease, background 120ms, color 120ms;
}
.cta:hover { background: transparent; transform: translateY(-1px); }
.cta-primary {
  background: var(--ink);
  color: var(--paper);
}
.cta-primary:hover {
  background: var(--signal);
  color: var(--paper);
}
.cta-secondary {
  border-color: var(--rule);
  color: var(--ink);
  background: transparent;
}
.cta-secondary:hover { background: var(--paper-2); color: var(--ink); }

.hero-foot {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
  margin: 0;
}

/* --- Section shared --- */
.dxgap, .how, .security {
  padding: 5.5rem 0;
  border-bottom: 1px solid var(--rule);
}
.section-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--signal);
  margin: 0 0 1.6rem;
}
.dxgap h2, .how h2, .security h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.85rem, 3.6vw, 2.7rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 1.4rem;
  max-width: 24ch;
  color: var(--ink);
}
.dxgap h2 em, .how h2 em, .security h2 em {
  font-style: italic;
  color: var(--signal);
  font-weight: 500;
}
.section-lede {
  font-size: 1.08rem;
  color: var(--ink-soft);
  max-width: 62ch;
  margin: 0 0 3rem;
  line-height: 1.55;
}

/* --- DX gap comparison --- */
.comparison {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  position: relative;
}
.comparison::before {
  content: "";
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 1px;
  background: var(--rule);
  transform: translateX(-50%);
}
.col-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--ink-muted);
  margin: 0 0 1.4rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--rule);
}
.col-pain .col-tag { color: var(--bad); }
.col-win .col-tag { color: var(--signal); }

.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.9rem;
}
.checklist li {
  position: relative;
  padding-left: 1.8rem;
  color: var(--ink-soft);
  font-size: 0.98rem;
  line-height: 1.5;
}
.checklist li::before {
  position: absolute;
  left: 0;
  top: 0.05em;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.95rem;
}
.checklist.negative li::before {
  content: "✗";
  color: var(--bad);
}
.checklist.positive li::before {
  content: "→";
  color: var(--signal);
}

/* --- How steps --- */
.steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 2.6rem;
  grid-template-columns: 1fr 1fr;
}
.steps > li {
  position: relative;
  border-top: 1px solid var(--rule);
  padding: 1.4rem 0 0;
}
.step-num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 0.4rem;
}
.steps h3 {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0 0 0.65rem;
  line-height: 1.18;
  color: var(--ink);
}
.steps p {
  margin: 0 0 1rem;
  color: var(--ink-soft);
  font-size: 0.98rem;
  line-height: 1.55;
}

/* --- Security --- */
.security-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.6rem;
}
.cell {
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1.7rem 1.7rem 1.9rem;
  background: var(--paper-2);
}
.cell-good { border-left: 3px solid var(--signal); }
.cell-bad { border-left: 3px solid var(--bad); }

.cell-label {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  margin: 0 0 1.2rem;
}
.cell-good .cell-label { color: var(--signal); }
.cell-bad .cell-label { color: var(--bad); }

.cell ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.65rem;
}
.cell li {
  color: var(--ink-soft);
  font-size: 0.97rem;
  padding-left: 1.5rem;
  position: relative;
  line-height: 1.5;
}
.cell li::before {
  position: absolute;
  left: 0;
  top: 0.05em;
  font-family: var(--font-mono);
  font-weight: 600;
}
.cell-good li::before { content: "→"; color: var(--signal); }
.cell-bad li::before { content: "✗"; color: var(--bad); }

/* --- Footer --- */
.footer {
  padding: 3rem 0 4rem;
  text-align: center;
}
.footer-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
  margin: 0 0 0.8rem;
}
.footer-links {
  margin: 0;
  font-size: 0.92rem;
}
.footer-links a {
  color: var(--ink-muted);
  border-bottom: none;
  margin: 0 0.5rem;
}
.footer-links a:hover {
  color: var(--ink);
  background: transparent;
}

/* --- Hero entry animation --- */
@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.eyebrow, .hero h1, .lede, .install, .cta-row, .hero-foot {
  animation: rise 600ms cubic-bezier(0.2, 0.7, 0.25, 1) backwards;
}
.hero h1 { animation-delay: 80ms; }
.lede { animation-delay: 180ms; }
.install { animation-delay: 280ms; }
.cta-row { animation-delay: 360ms; }
.hero-foot { animation-delay: 440ms; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* --- Responsive --- */
@media (max-width: 760px) {
  .hero { padding-bottom: 4rem; }
  .eyebrow { margin-top: 3rem; }
  .install { flex-direction: column; }
  .install pre { padding: 0.85rem 1rem; }
  .copy-btn {
    border-left: none;
    border-top: 1px solid var(--rule);
    padding: 0.6rem 0;
  }
  .dxgap, .how, .security { padding: 4rem 0; }
  .comparison {
    grid-template-columns: 1fr;
    gap: 2.4rem;
  }
  .comparison::before { display: none; }
  .steps {
    grid-template-columns: 1fr;
    gap: 2.4rem;
  }
  .security-grid { grid-template-columns: 1fr; }
}