:root {
  --bg: #fafaf9;
  --surface: #ffffff;
  --surface-muted: #f4f4f2;
  --text: #171817;
  --muted: #737773;
  --muted-strong: #555a56;
  --border: #e7e8e5;
  --border-strong: #dadcd8;
  --accent: #171817;
  --accent-contrast: #ffffff;
  --success: #42a875;
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;
  --shadow: 0 18px 50px rgba(18, 20, 18, 0.07);
  --shadow-hover: 0 22px 60px rgba(18, 20, 18, 0.10);
  --content: 1160px;
  --article: 800px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }
::selection { background: #171817; color: #fff; }

.container {
  width: min(var(--content), calc(100% - 48px));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250, 250, 249, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(231, 232, 229, 0.86);
}

.header-inner {
  min-height: 72px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  font-size: 17px;
  font-weight: 750;
  letter-spacing: -0.035em;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 31px;
  height: 31px;
  border-radius: 9px;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  line-height: 1;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.08);
}

.main-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 30px;
}

.main-nav a {
  position: relative;
  padding: 25px 0 23px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  transition: color .18s ease;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 17px;
  height: 1.5px;
  border-radius: 999px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: center;
  transition: transform .18s ease;
}

.main-nav a:hover,
.main-nav a.active { color: var(--text); }
.main-nav a:hover::after,
.main-nav a.active::after { transform: scaleX(1); }

.header-cta {
  justify-self: end;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 38px;
  padding: 0 14px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: rgba(255,255,255,.72);
  font-size: 12px;
  font-weight: 700;
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}

.header-cta::before {
  content: "";
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 4px rgba(66,168,117,.11);
}

.header-cta:hover {
  border-color: #cdd0cb;
  box-shadow: 0 8px 20px rgba(18,20,18,.06);
  transform: translateY(-1px);
}

/* Shared */
.eyebrow,
.mini-label {
  display: block;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .13em;
  font-size: 10px;
  font-weight: 750;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 17px;
  border: 1px solid transparent;
  border-radius: 11px;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
}

.button:hover { transform: translateY(-1px); }
.button-primary { background: var(--accent); color: var(--accent-contrast); box-shadow: 0 8px 20px rgba(23,24,23,.10); }
.button-primary:hover { box-shadow: 0 12px 28px rgba(23,24,23,.15); }
.button-secondary { background: var(--surface); border-color: var(--border); }
.button-secondary:hover { border-color: var(--border-strong); box-shadow: 0 8px 20px rgba(18,20,18,.05); }
.text-link { font-size: 13px; font-weight: 700; }
.text-link:hover, .card-link:hover, .footer-links a:hover { opacity: .58; }

/* Home */
.hero {
  min-height: 620px;
  padding: 100px 0 84px;
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(340px, .92fr);
  gap: 84px;
  align-items: center;
}

.hero h1,
.page-intro h1 {
  max-width: 780px;
  margin: 16px 0 22px;
  font-size: clamp(44px, 5.5vw, 72px);
  line-height: .99;
  letter-spacing: -.06em;
  font-weight: 760;
}

.hero-text,
.page-intro p {
  max-width: 650px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.hero-actions {
  margin-top: 30px;
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.hero-card {
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.hero-card .mini-label { margin-bottom: 26px; }
.flow-step { display: grid; grid-template-columns: 34px 1fr; column-gap: 10px; align-items: baseline; }
.flow-step span { color: #a3a7a3; font-size: 10px; font-weight: 750; }
.flow-step strong { font-size: 15px; letter-spacing: -.01em; }
.flow-step em { grid-column: 2; color: var(--muted); font-size: 13px; font-style: normal; margin-top: -1px; }
.flow-line { width: 1px; height: 27px; background: var(--border); margin: 7px 0 7px 16px; }

.section { padding: 92px 0; }
.split-section { display: grid; grid-template-columns: .78fr 1.22fr; gap: 90px; border-top: 1px solid var(--border); }
.split-section h2,
.callout h2 {
  margin: 13px 0 0;
  font-size: clamp(32px, 3.8vw, 48px);
  line-height: 1.05;
  letter-spacing: -.05em;
}

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.feature { padding: 2px 0; }
.feature-icon { display: inline-grid; place-items: center; width: 36px; height: 36px; margin-bottom: 16px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface); }
.feature h3 { margin: 0 0 7px; font-size: 15px; letter-spacing: -.015em; }
.feature p { margin: 0; color: var(--muted); font-size: 13px; }
.section-muted { background: var(--surface-muted); }
.callout { min-height: 270px; display: flex; align-items: center; justify-content: space-between; gap: 40px; }
.callout p { margin: 12px 0 0; color: var(--muted); }

/* Listing pages */
.page-main { padding: 82px 0 96px; }
.page-intro { margin-bottom: 48px; }
.page-intro h1 { margin-bottom: 16px; }
.narrow { width: min(900px, calc(100% - 48px)); margin-inline: auto; }
.blog-status { min-height: 22px; margin-bottom: 20px; color: var(--muted); font-size: 12px; }

.article-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.article-card {
  min-height: 282px;
  display: flex;
  flex-direction: column;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}

.article-card:hover {
  transform: translateY(-3px);
  border-color: #dfe1dd;
  box-shadow: var(--shadow-hover);
}

.article-card-top { display: flex; justify-content: space-between; gap: 15px; color: #909590; font-size: 10px; text-transform: uppercase; letter-spacing: .09em; }
.article-card h2 { margin: 25px 0 11px; font-size: 22px; line-height: 1.16; letter-spacing: -.035em; }
.article-card h2 a:hover { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 5px; }
.article-card p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.card-link { margin-top: auto; padding-top: 24px; font-size: 12px; font-weight: 750; }
.empty-state { grid-column: 1 / -1; padding: 40px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); color: var(--muted); text-align: center; }

.pagination { margin-top: 34px; display: flex; align-items: center; justify-content: center; gap: 7px; }
.page-button { min-width: 38px; height: 38px; padding: 0 9px; border: 1px solid var(--border); background: var(--surface); color: var(--text); border-radius: 10px; font: inherit; font-size: 12px; font-weight: 650; cursor: pointer; transition: background .18s ease, color .18s ease, border-color .18s ease; }
.page-button:hover:not(:disabled), .page-button.current { background: var(--text); color: #fff; border-color: var(--text); }
.page-button:disabled { opacity: .35; cursor: default; }
.pagination-dots { color: var(--muted); padding: 0 2px; }
.inline-retry { border: 0; background: none; padding: 0; font: inherit; font-weight: 700; text-decoration: underline; cursor: pointer; }

/* About */
.about-content { color: var(--muted); }
.about-content > p { max-width: 720px; }
.contact-card { margin-top: 48px; padding: 26px 28px; display: flex; align-items: center; justify-content: space-between; gap: 30px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: 0 10px 30px rgba(18,20,18,.035); }
.contact-card h2 { margin: 9px 0 4px; color: var(--text); font-size: 26px; letter-spacing: -.04em; }
.contact-card p { margin: 0; }
.contact-actions { display: flex; gap: 9px; flex-wrap: wrap; }

/* Article */
.article-page {
  width: min(var(--article), calc(100% - 48px));
  margin-inline: auto;
  padding: 84px 0 110px;
}

.article-header {
  margin-bottom: 52px;
  padding-bottom: 34px;
  border-bottom: 1px solid var(--border);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 11px;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .095em;
}

.article-meta span + span::before {
  content: "•";
  margin-right: 11px;
  color: #b0b4b0;
}

.article-header h1 {
  max-width: 780px;
  margin: 17px 0 18px;
  font-size: clamp(44px, 6vw, 68px);
  line-height: 1.02;
  letter-spacing: -.06em;
  font-weight: 760;
}

.article-lead {
  max-width: 720px;
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.prose {
  font-size: 17px;
  line-height: 1.82;
  color: #282b28;
}

.prose p,
.prose ul,
.prose ol { margin: 0 0 24px; }
.prose h2 { margin: 54px 0 15px; font-size: 30px; line-height: 1.15; letter-spacing: -.04em; }
.prose h3 { margin: 39px 0 12px; font-size: 22px; line-height: 1.2; letter-spacing: -.03em; }
.prose ul,
.prose ol { padding-left: 25px; }
.prose li { margin-bottom: 8px; padding-left: 3px; }
.prose a { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.prose blockquote { margin: 32px 0; padding: 4px 0 4px 21px; border-left: 2px solid var(--text); color: var(--muted-strong); }
.prose code { padding: 2px 6px; background: var(--surface-muted); border: 1px solid var(--border); border-radius: 6px; font-size: .9em; }

.article-cta {
  margin-top: 60px;
  padding: 25px 26px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--surface-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.article-cta h2 { margin: 0 0 4px; font-size: 21px; line-height: 1.2; letter-spacing: -.03em; }
.article-cta p { margin: 0; color: var(--muted); font-size: 13px; }

/* Footer */
.site-footer { margin-top: 40px; border-top: 1px solid var(--border); }
.footer-inner { padding: 42px 0 30px; display: flex; align-items: flex-start; justify-content: space-between; gap: 30px; }
.footer-brand { margin-bottom: 9px; }
.footer-copy { margin: 0; color: var(--muted); font-size: 12px; }
.footer-links { display: flex; gap: 20px; align-items: center; color: var(--muted); font-size: 12px; }
.footer-bottom { padding: 18px 0 28px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; gap: 20px; color: #969b96; font-size: 10px; }

/* Responsive */
@media (max-width: 920px) {
  .header-inner { grid-template-columns: auto 1fr auto; }
  .main-nav { justify-self: center; }
  .hero { grid-template-columns: 1fr; gap: 48px; padding-top: 80px; }
  .hero-card { max-width: 620px; }
  .split-section { grid-template-columns: 1fr; gap: 46px; }
}

@media (max-width: 680px) {
  .container,
  .article-page,
  .narrow { width: min(100% - 28px, 1160px); }

  .header-inner { min-height: 66px; gap: 12px; }
  .main-nav { gap: 16px; }
  .main-nav a { padding: 22px 0 20px; font-size: 12px; }
  .main-nav a::after { bottom: 14px; }
  .header-cta { min-height: 35px; padding: 0 10px; font-size: 0; gap: 6px; }
  .header-cta span { font-size: 14px; }
  .brand { font-size: 15px; }
  .brand-mark { width: 29px; height: 29px; }

  .hero { min-height: auto; padding: 68px 0 70px; }
  .hero h1,
  .page-intro h1,
  .article-header h1 { font-size: 43px; }
  .hero-text,
  .page-intro p,
  .article-lead { font-size: 15px; }
  .hero-card { padding: 25px; }
  .hero-actions { margin-top: 25px; gap: 14px; }

  .section { padding: 68px 0; }
  .feature-grid,
  .article-grid { grid-template-columns: 1fr; }
  .feature-grid { gap: 28px; }
  .contact-card,
  .article-cta,
  .callout,
  .footer-inner,
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .contact-actions { width: 100%; }
  .contact-actions .button { width: 100%; }

  .page-main { padding: 68px 0 76px; }
  .page-intro { margin-bottom: 38px; }

  .article-page { padding-top: 64px; padding-bottom: 84px; }
  .article-header { margin-bottom: 40px; padding-bottom: 28px; }
  .article-meta { font-size: 9px; }
  .prose { font-size: 16px; line-height: 1.78; }
  .prose h2 { margin-top: 44px; font-size: 27px; }
  .prose h3 { margin-top: 34px; font-size: 20px; }
  .article-cta { margin-top: 46px; }
  .article-cta .button { width: 100%; }

  .footer-links { flex-wrap: wrap; gap: 12px 18px; }
}