:root {
  --ink: #0f0e0c;
  --paper: #f3efe5;
  --paper-2: #d8d3c4;
  --rule: #2a2722;
  --green: oklch(0.64 0.16 145);
  --dim: rgba(243, 239, 229, 0.82);
  --dimmer: rgba(243, 239, 229, 0.65);
  --serif: "Instrument Serif", "Times New Roman", serif;
  --sans: "Inter Tight", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  --container: 1440px;
  --reading: 820px;
  --gutter: 40px;
  --display-title-size: 80px;
  --rule-soft: rgba(243, 239, 229, 0.1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "cv11";
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img, video { display: block; max-width: 100%; }

/* ───── top rail (matches landing) ───── */
.rail {
  position: fixed; top: 0; left: 0; right: 0; z-index: 80;
  background: rgba(15, 14, 12, 0.78);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(243, 239, 229, 0.08);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dim);
}
.rail__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px var(--gutter);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
}
.rail__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--paper);
}
.rail__brand img {
  width: 52px;
  height: 52px;
  object-fit: contain;
  filter: brightness(1.1);
}
.rail__brand b {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 34px;
  line-height: 1;
  letter-spacing: 0;
  color: var(--paper);
  text-transform: none;
}
.rail__nav {
  display: flex;
  gap: 22px;
  justify-content: flex-end;
}
.rail__nav a { color: var(--dim); transition: color 0.15s; font-size: 11.5px; }
.rail__nav a:hover { color: var(--paper); }
.rail__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  justify-self: end;
  padding: 15px 26px;
  background: var(--paper);
  color: var(--ink);
  border-radius: 999px;
  font-family: var(--sans);
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0;
  text-transform: none;
  text-decoration: none;
  transition: transform .2s ease, background .2s ease, color .2s ease, box-shadow .2s ease;
  white-space: nowrap;
}
.rail__cta:hover {
  transform: translateY(-1px);
  text-decoration: none;
}
.rail__cta svg { width: 20px; height: 20px; }

/* ───── article layout ───── */
main { padding-top: 80px; }
.wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.reading { max-width: var(--reading); margin: 0 auto; }

.breadcrumbs {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dimmer);
  padding: 42px 0 18px;
  display: flex; gap: 10px; flex-wrap: wrap;
}
.breadcrumbs a { color: var(--dim); }
.breadcrumbs a:hover { color: var(--paper); }
.breadcrumbs span { color: var(--dimmer); }

/* ───── hero header for articles ───── */
.page-head {
  padding: 34px 0 64px;
  border-bottom: 1px solid var(--rule-soft);
  margin-bottom: 54px;
}
.page-head .wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.page-head__eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 18px;
}
.page-head__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: var(--display-title-size);
  line-height: 0.95;
  letter-spacing: 0;
  max-width: 1120px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 24px;
}
.page-head__title em { font-style: italic; color: var(--green); }
.page-head__sub {
  font-size: clamp(19px, 1.5vw, 23px);
  line-height: 1.38;
  color: var(--dim);
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}
.page-head__meta {
  display: flex; gap: 22px; flex-wrap: wrap;
  justify-content: center;
  margin-top: 28px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dimmer);
}
.page-head__meta b { color: var(--paper); font-weight: 500; }

/* ───── article body typography ───── */
.prose { font-size: 18px; color: var(--paper); }
.prose > * + * { margin-top: 1.1em; }
.prose h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.03;
  letter-spacing: 0;
  margin-top: 2.2em;
  margin-bottom: 0.4em;
}
.prose h2 em { color: var(--green); font-style: italic; }
.prose h3 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 22px;
  line-height: 1.25;
  letter-spacing: 0;
  margin-top: 2em;
  margin-bottom: 0.3em;
  color: var(--paper);
}
.prose h4 {
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  margin-top: 1.8em;
}
.prose p { color: var(--dim); }
.prose strong { color: var(--paper); font-weight: 600; }
.prose em { font-style: italic; }
.prose ul, .prose ol { padding-left: 1.3em; color: var(--dim); }
.prose li + li { margin-top: 0.45em; }
.prose li::marker { color: var(--green); }
.prose blockquote {
  border-left: 3px solid var(--green);
  padding: 0.4em 0 0.4em 1.2em;
  font-family: var(--serif);
  font-style: italic;
  font-size: 22px;
  line-height: 1.4;
  color: var(--paper);
  margin: 2em 0;
}
.prose a {
  color: var(--green);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: opacity 0.15s;
}
.prose a:hover { opacity: 0.75; }
.prose code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: rgba(243, 239, 229, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--paper);
}
.prose hr {
  border: 0;
  border-top: 1px solid rgba(243, 239, 229, 0.12);
  margin: 3em 0;
}
.prose figure { margin: 2em 0; }
.prose figcaption {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--dimmer);
  margin-top: 10px;
}

/* ───── key facts callout ───── */
.tldr {
  border: 1px solid rgba(243, 239, 229, 0.16);
  border-radius: 8px;
  padding: 24px 28px;
  margin: 1.6em 0 2.4em;
  background: rgba(243, 239, 229, 0.04);
}
.tldr__label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 10px;
}
.tldr p { color: var(--paper); margin: 0; }
.tldr ul { margin-top: 8px; padding-left: 1.1em; }
.tldr li { color: var(--paper); }

/* ───── comparison table ───── */
.cmp {
  width: 100%;
  border-collapse: collapse;
  margin: 2em 0;
  font-size: 15px;
}
.cmp th, .cmp td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(243, 239, 229, 0.1);
  vertical-align: top;
}
.cmp thead th {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--dim);
  border-bottom: 1px solid rgba(243, 239, 229, 0.2);
}
.cmp tbody th {
  font-weight: 500;
  color: var(--paper);
  font-family: var(--sans);
}
.cmp td { color: var(--dim); }
.cmp .yes { color: var(--green); font-weight: 600; }
.cmp .no { color: rgba(243, 239, 229, 0.4); }
.cmp .partial { color: #d8c46a; }

/* ───── verdict card ───── */
.verdict {
  border-top: 1px solid var(--rule-soft);
  border-bottom: 1px solid var(--rule-soft);
  padding: 34px 0;
  margin: 3em 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.verdict__col h3 {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.verdict__col--pick h3 { color: var(--green); }
.verdict__col--other h3 { color: var(--dim); }
.verdict__col p { color: var(--dim); font-size: 16px; }
@media (max-width: 720px) {
  .verdict { grid-template-columns: 1fr; gap: 24px; }
}

/* ───── inline CTA card ───── */
.cta-card {
  margin: 3em 0;
  padding: 32px 28px;
  border-radius: 8px;
  background: rgba(243, 239, 229, 0.05);
  border: 1px solid rgba(243, 239, 229, 0.14);
  text-align: center;
}
.cta-card h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.02;
  letter-spacing: 0;
  margin-bottom: 8px;
  color: var(--paper);
}
.cta-card h3 em { color: var(--green); font-style: italic; }
.cta-card p { color: var(--dim); margin-bottom: 22px; }
.cta-card a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 26px;
  background: var(--green);
  color: var(--ink);
  border-radius: 999px;
  font-weight: 600;
  font-size: 14.5px;
  letter-spacing: 0;
  text-decoration: none;
  transition: transform .2s ease, background .2s ease, color .2s ease, box-shadow .2s ease;
  box-shadow:
    0 0 0 1px rgba(110, 231, 153, 0.55) inset,
    0 0 24px rgba(110, 231, 153, 0.45),
    0 0 56px rgba(110, 231, 153, 0.32),
    0 0 96px rgba(110, 231, 153, 0.22);
}
.cta-card a:hover {
  transform: translateY(-1px);
  text-decoration: none;
  box-shadow:
    0 0 0 1px rgba(110, 231, 153, 0.75) inset,
    0 0 32px rgba(110, 231, 153, 0.6),
    0 0 72px rgba(110, 231, 153, 0.4),
    0 0 120px rgba(110, 231, 153, 0.28);
}
.cta-card a svg { width: 20px; height: 20px; }
.cta-card .perks {
  display: block;
  margin-top: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dimmer);
}

/* ───── feature page hero + grids ───── */
.feature-hero {
  padding: 78px 0 66px;
  border-bottom: 1px solid var(--rule-soft);
  margin-bottom: 54px;
}
.feature-hero .wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.feature-hero h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: var(--display-title-size);
  line-height: 0.95;
  letter-spacing: 0;
  margin: 22px 0;
  max-width: 1120px;
  margin-left: auto;
  margin-right: auto;
}
.feature-hero h1 em { font-style: italic; color: var(--green); }
.feature-hero p.lead {
  font-size: clamp(19px, 1.5vw, 23px);
  line-height: 1.38;
  color: var(--dim);
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 30px;
}
.feature-hero .actions {
  display: flex; gap: 12px; flex-wrap: wrap;
  justify-content: center;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 26px;
  background: var(--green);
  color: var(--ink);
  border-radius: 999px;
  font-weight: 600;
  font-size: 14.5px;
  letter-spacing: 0;
  text-decoration: none;
  transition: transform .2s ease, background .2s ease, color .2s ease, box-shadow .2s ease;
  box-shadow:
    0 0 0 1px rgba(110, 231, 153, 0.55) inset,
    0 0 24px rgba(110, 231, 153, 0.45),
    0 0 56px rgba(110, 231, 153, 0.32),
    0 0 96px rgba(110, 231, 153, 0.22);
}
.btn-primary:hover {
  transform: translateY(-1px);
  text-decoration: none;
  box-shadow:
    0 0 0 1px rgba(110, 231, 153, 0.75) inset,
    0 0 32px rgba(110, 231, 153, 0.6),
    0 0 72px rgba(110, 231, 153, 0.4),
    0 0 120px rgba(110, 231, 153, 0.28);
}
.btn-primary svg { width: 20px; height: 20px; }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 26px;
  color: var(--paper);
  border: 1px solid rgba(243, 239, 229, 0.22);
  background: rgba(20, 19, 17, 0.6);
  border-radius: 999px;
  font-weight: 600;
  font-size: 14.5px;
  letter-spacing: 0;
  text-decoration: none;
  transition: transform .2s ease, background .2s ease, color .2s ease, border-color .2s ease;
}
.btn-ghost:hover {
  transform: translateY(-1px);
  border-color: rgba(243, 239, 229, 0.45);
  text-decoration: none;
}

.benefits {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin: 3em 0;
}
.benefit {
  padding: 26px;
  border: 1px solid rgba(243, 239, 229, 0.12);
  border-radius: 8px;
  background: rgba(243, 239, 229, 0.025);
}
.benefit__num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--green);
  margin-bottom: 12px;
}
.benefit h3 {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 19px;
  margin-bottom: 10px;
  color: var(--paper);
}
.benefit p { color: var(--dim); font-size: 15px; line-height: 1.5; }
@media (max-width: 820px) {
  .benefits { grid-template-columns: 1fr; }
}

/* ───── blog index card grid ───── */
.posts {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin: 2em 0 4em;
}
.post-card {
  display: block;
  padding: 30px;
  border: 1px solid rgba(243, 239, 229, 0.12);
  border-radius: 8px;
  transition: border-color 0.15s, transform 0.15s;
  background: rgba(243, 239, 229, 0.025);
}
.post-card:hover {
  border-color: rgba(243, 239, 229, 0.32);
  transform: translateY(-2px);
}
.post-card__tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 14px;
}
.post-card h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 26px;
  line-height: 1.12;
  letter-spacing: 0;
  margin-bottom: 12px;
}
.post-card p { color: var(--dim); font-size: 15px; line-height: 1.5; }
.post-card__meta {
  margin-top: 16px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dimmer);
}
@media (max-width: 820px) {
  .posts { grid-template-columns: 1fr; }
}

/* ───── Q&A (AEO snippet-extractable) ───── */
.qa {
  margin-top: 4em;
  padding-top: 32px;
  border-top: 1px solid rgba(243, 239, 229, 0.12);
}
.qa__h {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 0.9em;
}
.qa__h em { color: var(--green); font-style: italic; }
.qa__item {
  border-bottom: 1px solid rgba(243, 239, 229, 0.1);
  padding: 18px 0;
}
.qa__item:last-child { border-bottom: 0; }
.qa__q {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 17px;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}
.qa__q::-webkit-details-marker { display: none; }
.qa__q::after {
  content: "+";
  font-family: var(--mono);
  font-size: 22px;
  color: var(--green);
  line-height: 1;
}
.qa__item[open] .qa__q::after { content: "−"; }
.qa__a {
  color: var(--dim);
  font-size: 16px;
  line-height: 1.55;
  padding-top: 10px;
}

/* ───── byline ───── */
.byline {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid rgba(243, 239, 229, 0.08);
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--dimmer);
  flex-wrap: wrap;
}
.byline a { color: var(--dim); text-decoration: underline; text-underline-offset: 3px; }
.byline a:hover { color: var(--paper); }
.byline b { color: var(--paper); font-weight: 500; }

/* ───── related links ───── */
.related {
  margin-top: 4em;
  padding-top: 32px;
  border-top: 1px solid rgba(243, 239, 229, 0.12);
}
.related__h {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 18px;
}
.related ul { list-style: none; padding: 0; }
.related li + li { margin-top: 12px; }
.related a {
  color: var(--paper);
  text-decoration: underline;
  text-decoration-color: rgba(243, 239, 229, 0.25);
  text-underline-offset: 3px;
}
.related a:hover { text-decoration-color: var(--green); color: var(--green); }

/* ───── footer ───── */
footer {
  margin-top: 100px;
  padding: 56px 0 36px;
  border-top: 1px solid rgba(243, 239, 229, 0.1);
}
.foot {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 36px;
}
.foot__brand { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.foot__brand img { width: 42px; height: 42px; object-fit: contain; }
.foot__brand b {
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 400;
  letter-spacing: 0;
}
.foot__desc { color: var(--dim); font-size: 14px; max-width: 380px; }
.foot__col h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dim);
  margin-bottom: 14px;
}
.foot__col ul { list-style: none; padding: 0; }
.foot__col li + li { margin-top: 10px; }
.foot__col a { color: var(--paper); font-size: 14px; transition: color 0.15s; }
.foot__col a:hover { color: var(--green); }
.foot-bar {
  max-width: var(--container);
  margin: 36px auto 0;
  padding: 18px var(--gutter) 0;
  border-top: 1px solid rgba(243, 239, 229, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--dimmer);
  flex-wrap: wrap;
  gap: 16px;
}
@media (max-width: 820px) {
  .foot {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .foot__brand-col {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .foot__brand {
    justify-content: center;
  }

  .foot__desc {
    margin-left: auto;
    margin-right: auto;
  }

  .foot__col {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .foot__col ul {
    display: flex;
    flex-direction: column;
    align-items: center;
  }

  .foot-bar {
    justify-content: center;
    text-align: center;
  }
}
@media (max-width: 520px) {
  .foot { grid-template-columns: 1fr; }
  .foot-bar { justify-content: center; text-align: center; }
}

/* ───── mobile rail tweaks ───── */
@media (max-width: 980px) {
  :root {
    --display-title-size: 56px;
    --gutter: 24px;
  }

  .rail__brand img {
    width: 42px;
    height: 42px;
  }

  .rail__brand b {
    font-size: 28px;
  }
}

@media (max-width: 720px) {
  .rail__nav { display: none; }
  .rail__inner {
    grid-template-columns: auto 1fr;
    padding: 12px 18px;
    gap: 12px;
  }
  .rail__brand img { width: 34px; height: 34px; }
  .rail__brand b { font-size: 24px; }
  .rail__cta { padding: 13px 22px; font-size: 14px; }
  .breadcrumbs { padding-top: 26px; font-size: 10.5px; }
  .feature-hero { padding: 60px 0 40px; }
  .prose { font-size: 16.5px; }

  .cmp {
    display: block;
    overflow-x: auto;
  }

  .cmp th,
  .cmp td {
    min-width: 140px;
  }
}

@media (max-width: 620px) {
  :root {
    --display-title-size: 42px;
    --gutter: 18px;
  }

  .page-head {
    padding: 28px 0 42px;
    margin-bottom: 38px;
  }

  .feature-hero {
    margin-bottom: 38px;
  }

  .feature-hero .actions,
  .feature-hero .actions a,
  .cta-card a,
  .btn-primary,
  .btn-ghost {
    width: 100%;
    justify-content: center;
  }

  .page-head__sub,
  .feature-hero p.lead {
    font-size: 18px;
  }
}