:root {
  --ink: #14181F;
  --muted: #566070;
  --accent: #1D4ED8;
  --accent-hover: #1E40AF;
  --accent-tint: #EFF3FE;
  --line: #E3E6EB;
  --surface: #F7F8FA;
  --font-mono: ui-monospace, 'SF Mono', 'JetBrains Mono', Menlo, Consolas, monospace;
}

html,
body {
  margin: 0;
  padding: 0;
  background: #FFFFFF;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  color: var(--ink);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection {
  background: var(--accent);
  color: #fff;
}

.container {
  max-width: 720px;
  margin: 0 auto;
}

.container-wide {
  max-width: 960px;
  margin: 0 auto;
}

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

summary {
  outline: none;
}

summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.section-title {
  margin: 0 0 28px;
  font-size: clamp(24px, 3.5vw, 30px);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.link {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.cta-link {
  font-size: 16px;
}

.cta-row {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 28px;
  background: var(--accent);
  color: #FFFFFF;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 16px;
}

.btn:hover {
  background: var(--accent-hover);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  background: #FFFFFF;
}

.btn-outline:hover {
  background: var(--accent-tint);
}

.hero {
  padding: 96px 24px 0;
}

.eyebrow {
  margin: 0 0 28px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
}

.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(34px, 5.5vw, 46px);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.lede {
  margin: 0 0 36px;
  font-size: 19px;
  line-height: 1.55;
  color: var(--muted);
  max-width: 640px;
  text-wrap: pretty;
}

.hero .cta-row {
  margin: 0 0 20px;
}

.fineprint {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
}

.diagram {
  margin-top: 56px;
}

.diagram svg {
  width: 100%;
  height: auto;
  display: block;
}

.diagram .diagram-mobile {
  display: none;
}

@media (max-width: 640px) {
  .diagram .diagram-desktop {
    display: none;
  }

  .diagram .diagram-mobile {
    display: block;
    max-width: 400px;
    margin: 0 auto;
  }
}

.fit {
  padding: 56px 24px;
}

.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 20px;
}

.checklist li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 12px;
}

.check {
  color: var(--accent);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.4;
}

.check-text {
  text-wrap: pretty;
}

.aside-note {
  margin: 32px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.failures {
  padding: 56px 24px;
  background: var(--surface);
}

.failures .section-title {
  margin-bottom: 12px;
}

.section-intro {
  margin: 0 0 28px;
  color: var(--muted);
  max-width: 600px;
}

.failure-list {
  display: grid;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.65;
  color: var(--ink);
}

.failure-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #FFFFFF;
  padding: 14px 18px;
}

.pricing {
  padding: 56px 24px;
}

.pricing .section-title {
  max-width: 720px;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  align-items: stretch;
}

.plan {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  background: #FFFFFF;
}

.plan h3 {
  margin: 0;
  font-size: 19px;
  font-weight: 600;
}

.price {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--ink);
}

.plan ul {
  margin: 0;
  padding: 0 0 0 18px;
  display: grid;
  gap: 8px;
  font-size: 15px;
  color: var(--ink);
}

.keep {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--muted);
}

.keep strong {
  color: var(--ink);
  font-weight: 600;
}

.pricing-cta {
  margin-top: 36px;
  display: flex;
  justify-content: center;
}

.track-b {
  padding: 8px 24px;
}

.callout {
  background: var(--surface);
  border-left: 3px solid var(--accent);
  border-radius: 0 8px 8px 0;
  padding: 28px 32px;
}

.callout h2 {
  margin: 0 0 12px;
  font-size: 21px;
  font-weight: 600;
}

.callout p {
  margin: 0 0 20px;
  text-wrap: pretty;
}

.proof {
  padding: 56px 24px;
}

.terminal {
  background: #0D1117;
  border-radius: 8px;
  padding: 24px 26px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.75;
  color: #E6EDF3;
  overflow-x: auto;
}

.prompt {
  color: #3FB950;
}

.log {
  display: grid;
  grid-template-columns: max-content 1fr;
  column-gap: 16px;
  row-gap: 10px;
  margin-top: 6px;
}

.log-date {
  color: #8B949E;
}

.bio {
  margin: 28px 0 0;
  text-wrap: pretty;
}

.faq {
  padding: 56px 24px;
  background: var(--surface);
}

.faq .section-title {
  margin-bottom: 20px;
}

.faq details {
  border-bottom: 1px solid var(--line);
  padding: 4px 0;
}

.faq summary {
  cursor: pointer;
  padding: 14px 0;
  font-weight: 600;
  font-size: 16.5px;
}

.faq details p {
  margin: 0 0 16px;
  color: var(--muted);
  text-wrap: pretty;
}

details[open] summary ~ * {
  animation: faq-open 0.22s ease-out;
}

@keyframes faq-open {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }

  to {
    opacity: 1;
    transform: none;
  }
}

.faq .cta-row {
  margin-top: 40px;
}

.site-footer {
  padding: 48px 24px 56px;
  border-top: 1px solid var(--line);
}

.site-footer .container {
  display: grid;
  gap: 20px;
}

.footer-note {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 14px;
}

.footer-links a {
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.page {
  padding: 96px 24px 56px;
}

.page h1 {
  margin: 0 0 28px;
  font-size: clamp(28px, 4.5vw, 38px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.page h2 {
  margin: 40px 0 12px;
  font-size: 21px;
  font-weight: 600;
}

.page p {
  margin: 0 0 16px;
  text-wrap: pretty;
}

.requisites {
  margin: 0 0 8px;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 8px 24px;
}

.requisites dt {
  color: var(--muted);
}

.requisites dd {
  margin: 0;
}

@media (max-width: 560px) {
  .requisites {
    grid-template-columns: 1fr;
    gap: 2px 0;
  }

  .requisites dd {
    margin: 0 0 12px;
  }
}

.post-meta {
  margin: 0 0 36px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--muted);
}

.post h2 {
  margin: 44px 0 14px;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.post h3 {
  margin: 24px 0 8px;
  font-size: 18px;
  font-weight: 600;
}

.post ul,
.post ol {
  margin: 0 0 16px;
  padding: 0 0 0 22px;
  display: grid;
  gap: 8px;
}

.post pre {
  margin: 0 0 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.65;
  overflow-x: auto;
}

.post pre code {
  background: none;
  border: 0;
  padding: 0;
  font-size: inherit;
}

.post code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1px 5px;
}

.table-scroll {
  margin: 0 0 16px;
  overflow-x: auto;
}

.post table {
  margin: 0;
  border-collapse: collapse;
  font-size: 15px;
  width: 100%;
}

.post th,
.post td {
  border: 1px solid var(--line);
  padding: 8px 12px;
  text-align: left;
  vertical-align: top;
}

.post th {
  background: var(--surface);
  font-weight: 600;
}

.post .callout {
  margin-top: 44px;
}