/* ==========================================================================
   Free Imposition Software — Minimalist Modernism
   White room. One cobalt accent. Tables are the heroes.
   ========================================================================== */

:root {
  --white: #FFFFFF;
  --ink: #111418;
  --ink-soft: #4B5157;
  --accent: #1D4ED8;
  --accent-ink: #16309E;
  --line: #E5E7EB;
  --line-soft: #F1F2F4;
  --wash: #F8F9FB;
  --radius: 2px;
  --measure: 40rem;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; display: block; }

a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent-ink); }
a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 1px;
}

h1, h2, h3, h4 {
  font-weight: 650;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin: 0 0 0.6em;
  color: var(--ink);
}
h1 { font-size: clamp(2rem, 1.55rem + 1.8vw, 3.05rem); font-weight: 700; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.4rem, 1.2rem + 0.8vw, 1.85rem); margin-top: 3em; }
h3 { font-size: 1.15rem; margin-top: 2em; }
p { margin: 0 0 1.2em; color: var(--ink); max-width: 42rem; }
p.lede { font-size: 1.15rem; color: var(--ink-soft); }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}
.narrow { max-width: 780px; margin-left: auto; margin-right: auto; }

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: var(--white);
  padding: 10px 16px;
  z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- Header ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(255,255,255,0.92);
  backdrop-filter: saturate(180%) blur(6px);
  z-index: 50;
}
.site-header .bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}
.brand svg { width: 26px; height: 26px; flex: none; }
.brand:hover { color: var(--ink); }

nav.primary-nav { display: flex; align-items: center; gap: 28px; }
nav.primary-nav a.nav-link {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
}
nav.primary-nav a.nav-link:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; }

.nav-actions { display: flex; align-items: center; gap: 18px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: var(--white) !important;
  border: 1px solid var(--accent);
  padding: 11px 20px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none !important;
  cursor: pointer;
  transition: background-color .15s ease, border-color .15s ease;
}
.btn:hover { background: var(--accent-ink); border-color: var(--accent-ink); }
.btn-ghost {
  background: transparent;
  color: var(--ink) !important;
  border: 1px solid var(--line);
}
.btn-ghost:hover { border-color: var(--ink); background: var(--wash); }
.btn-sm { padding: 8px 14px; font-size: 0.85rem; }

.mobile-nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.mobile-nav-toggle svg { width: 18px; height: 18px; }

/* ---------- Hero ---------- */
.hero {
  padding: 88px 0 72px;
  border-bottom: 1px solid var(--line);
}
.hero .eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 18px;
}
.hero h1 { max-width: 18ch; }
.hero .subhead {
  font-size: 1.2rem;
  color: var(--ink-soft);
  max-width: 46ch;
  margin: 22px 0 32px;
}
.hero .cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; }
.trust-line {
  margin-top: 22px;
  font-size: 0.88rem;
  color: var(--ink-soft);
}
.trust-line .dot { color: var(--line); margin: 0 10px; }

/* ---------- Sections ---------- */
section.block { padding: 72px 0; border-bottom: 1px solid var(--line); }
section.block:last-of-type { border-bottom: none; }
.section-head { max-width: 640px; margin-bottom: 44px; }
.section-head .kicker {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 10px;
}
.section-head p { color: var(--ink-soft); }

/* ---------- How it works ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.step { border-top: 1px solid var(--ink); padding-top: 20px; }
.step .step-icon { width: 40px; height: 40px; margin-bottom: 18px; color: var(--accent); }
.step .step-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
  display: block;
  margin-bottom: 8px;
}
.step h3 { margin-top: 0; font-size: 1.05rem; }
.step p { color: var(--ink-soft); font-size: 0.95rem; margin-bottom: 0; }

/* ---------- Feature grid ---------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.feature {
  background: var(--white);
  padding: 30px 28px;
}
.feature h3 { margin-top: 0; font-size: 1.02rem; }
.feature p { color: var(--ink-soft); font-size: 0.93rem; margin-bottom: 0; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table {
  border-collapse: collapse;
  width: 100%;
  min-width: 640px;
  font-size: 0.93rem;
}
caption { text-align: left; padding: 14px 18px 0; font-size: 0.85rem; color: var(--ink-soft); }
th, td {
  text-align: left;
  padding: 13px 18px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
thead th {
  background: var(--wash);
  font-weight: 650;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--ink);
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--wash); }
td.yes { color: var(--accent-ink); font-weight: 600; }
td.no { color: #9CA3AF; }

/* ---------- FAQ ---------- */
.faq-list { border-top: 1px solid var(--line); }
details.faq-item {
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
}
details.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1.02rem;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
details.faq-item summary::-webkit-details-marker { display: none; }
details.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--accent);
  flex: none;
  font-weight: 400;
  line-height: 1;
}
details.faq-item[open] summary::after { content: "\2212"; }
details.faq-item p { margin-top: 14px; color: var(--ink-soft); max-width: 60ch; }

/* ---------- Blog cards ---------- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.blog-card {
  background: var(--white);
  padding: 32px;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--ink);
}
.blog-card:hover { background: var(--wash); }
.blog-card .tag {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 12px;
}
.blog-card h3 { margin: 0 0 10px; font-size: 1.12rem; color: var(--ink); }
.blog-card p { color: var(--ink-soft); font-size: 0.94rem; margin-bottom: 0; }
.blog-card .read-more { margin-top: 18px; font-size: 0.88rem; font-weight: 600; color: var(--accent); text-decoration: none; }

/* ---------- Article ---------- */
.article-header { padding: 64px 24px 40px; border-bottom: 1px solid var(--line); }
.breadcrumb { font-size: 0.85rem; color: var(--ink-soft); margin-bottom: 24px; }
.breadcrumb a { color: var(--ink-soft); }
.byline { font-size: 0.88rem; color: var(--ink-soft); margin-top: 18px; }

.answer-block {
  border: 1px solid var(--ink);
  border-left: 4px solid var(--accent);
  padding: 22px 26px;
  margin: 36px 0 40px;
  background: var(--wash);
  max-width: var(--measure);
}
.answer-block .label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 10px;
}
.answer-block p { margin: 0; font-size: 1.02rem; color: var(--ink); max-width: none; }

article.post { padding: 8px 24px 72px; }
article.post p, article.post li { max-width: var(--measure); }
article.post ul, article.post ol { padding-left: 1.3em; color: var(--ink); margin-bottom: 1.2em; }
article.post li { margin-bottom: 0.5em; }
article.post figure { margin: 32px 0; max-width: 700px; }
article.post figure svg { border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); width: 100%; height: auto; }
article.post figcaption { font-size: 0.85rem; color: var(--ink-soft); margin-top: 12px; }
article.post strong { font-weight: 650; }
article.post code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--wash);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  border: 1px solid var(--line);
}
.external-note { font-size: 0.85rem; color: var(--ink-soft); border-top: 1px solid var(--line); padding-top: 18px; margin-top: 40px; }

.post-cta {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 32px;
  margin: 44px 0;
  background: var(--wash);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}
.post-cta h3 { margin: 0 0 6px; font-size: 1.1rem; }
.post-cta p { margin: 0; color: var(--ink-soft); font-size: 0.93rem; }

/* ---------- Footer ---------- */
footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 56px 0 40px;
  background: var(--wash);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 32px;
  margin-bottom: 40px;
}
.footer-col h4 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 10px; }
.footer-col a { color: var(--ink-soft); text-decoration: none; font-size: 0.92rem; }
.footer-col a:hover { color: var(--accent); text-decoration: underline; }
.footer-brand p { color: var(--ink-soft); font-size: 0.9rem; max-width: 32ch; }
.footer-bottom {
  border-top: 1px solid var(--line);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.footer-bottom a { color: var(--ink-soft); }
.network-line { font-size: 0.85rem; color: var(--ink-soft); }
.network-line a { color: var(--accent); text-decoration: underline; }

/* ---------- 404 ---------- */
.error-page { padding: 120px 0; text-align: center; }
.error-page .code { font-family: var(--font-mono); color: var(--accent); font-size: 1rem; letter-spacing: 0.1em; }
.error-page h1 { margin-top: 16px; }
.error-page .actions { display: flex; gap: 16px; justify-content: center; margin-top: 32px; flex-wrap: wrap; }

/* ---------- Utility ---------- */
.badge {
  display: inline-block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  padding: 3px 9px;
  border: 1px solid var(--line);
  border-radius: 20px;
  color: var(--ink-soft);
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .steps { grid-template-columns: 1fr; gap: 32px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .blog-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  nav.primary-nav { display: none; }
  .mobile-nav-toggle { display: inline-flex; }
  .site-header.nav-open nav.primary-nav {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 16px;
  }
  .hero { padding: 56px 0 48px; }
  section.block { padding: 52px 0; }
  .feature-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  table { min-width: 560px; }
}

@media (max-width: 400px) {
  .container { padding: 0 16px; }
}