/* Blog — a standalone public content theme.
 *
 * Deliberately not part of the app's Tailwind bundle: the blog layout loads
 * this file and nothing else, so an article ships a small, budgeted stylesheet
 * with no Cable, auth-modal or checkout CSS in it (seo_plan.md Phase C).
 */

:root {
  --paper: #E4D9C1;
  --card: #F7F2E7;
  --card-alt: #EEE6D3;
  --ink: #1B1814;
  --ink-soft: #5A5246;
  --ink-invert: #F5EFE4;
  --blue: #1B3FA0;
  --blue-dark: #142E75;
  --red: #B0301E;
  --ember: #E8694F;
  --rule: rgba(27, 24, 20, .2);
  --rule-soft: rgba(27, 24, 20, .1);
  --shell: 1120px;
  --sans: "Golos Text", system-ui, -apple-system, sans-serif;
  --display: "Oswald", "Golos Text", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  position: relative;
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-dark); }
::selection { background: var(--blue); color: #fff; }
img { max-width: 100%; height: auto; }

/* The paper grain. Fixed and inert so it never intercepts a click. */
.grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 0; opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.shell { max-width: var(--shell); margin: 0 auto; padding-left: 24px; padding-right: 24px; }

/* --- shared type ------------------------------------------------------- */
.kicker {
  font-family: var(--mono); font-size: 12px; letter-spacing: .16em;
  text-transform: uppercase; color: var(--ink-soft); margin: 0 0 12px;
  display: flex; align-items: center; gap: 10px;
}
.kicker::before { content: ""; width: 34px; height: 1.5px; background: var(--ink); display: block; }
.kicker--plain::before { display: none; }
.kicker--alert { color: var(--red); }

.display {
  font-family: var(--display); font-weight: 700; text-transform: uppercase;
  line-height: .98; letter-spacing: -.01em; margin: 0 0 16px;
}
.h1 { font-size: clamp(32px, 5.2vw, 58px); max-width: 20ch; }
.h2 { font-size: clamp(24px, 3.4vw, 34px); line-height: 1; }
.lede { font-size: 17px; color: var(--ink-soft); max-width: 62ch; margin: 0; }
.meta { font-family: var(--mono); font-size: 11.5px; color: var(--ink-soft); }

.chip {
  font-family: var(--mono); font-size: 11px; letter-spacing: .06em;
  text-transform: uppercase; border: 1px solid var(--rule); border-radius: 2px;
  padding: 5px 10px; color: var(--ink-soft); display: inline-block;
}
.chip--on { border-color: var(--ink); background: var(--ink); color: var(--paper); }
.chip--alert { border-color: var(--red); color: var(--red); }

.btn {
  font-family: var(--mono); font-weight: 500; font-size: 14px; letter-spacing: .04em;
  text-transform: uppercase; border: 1.5px solid var(--blue); background: var(--blue);
  color: #fff; padding: 14px 22px; border-radius: 3px;
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
}
.btn:hover { background: var(--blue-dark); border-color: var(--blue-dark); color: #fff; }
.btn--ghost { background: transparent; border-color: var(--ink); color: var(--ink); }
.btn--ghost:hover { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.btn--light { background: transparent; border-color: rgba(247, 242, 231, .7); color: var(--card); }
.btn--light:hover { background: rgba(247, 242, 231, .12); border-color: rgba(247, 242, 231, .7); color: var(--card); }

.link-arrow {
  font-family: var(--mono); font-size: 13px; text-transform: uppercase; letter-spacing: .04em;
  color: var(--blue); border-bottom: 1.5px solid var(--blue); padding-bottom: 2px;
  display: inline-flex; gap: 6px; align-items: center;
}

.card {
  background: var(--card); border: 1.5px solid var(--ink); border-radius: 4px;
  box-shadow: 0 18px 40px -24px rgba(27, 24, 20, .55);
}
.card__bar {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 11px 22px; border-bottom: 1.5px solid var(--ink); background: var(--card-alt);
  font-family: var(--mono); font-size: 11px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--ink-soft);
}

/* --- chrome ------------------------------------------------------------ */
.site-head {
  position: sticky; top: 0; z-index: 20;
  background: var(--paper); border-bottom: 1.5px solid var(--ink);
}
.site-head__inner {
  position: relative; z-index: 1; display: flex; align-items: center;
  justify-content: space-between; gap: 16px; flex-wrap: wrap;
  padding-top: 12px; padding-bottom: 12px;
}
.wordmark {
  font-family: var(--display); font-weight: 700; text-transform: uppercase;
  letter-spacing: .04em; font-size: 20px; line-height: 1.1; color: var(--ink);
}
.site-nav {
  display: flex; gap: 22px; align-items: center; font-size: 14px; flex-wrap: wrap;
  font-family: var(--mono); letter-spacing: .04em;
}
.site-nav a { color: var(--ink-soft); }
.site-nav a:hover { color: var(--ink); }
.site-nav a.is-cta { color: var(--blue); border-bottom: 1.5px solid var(--blue); padding-bottom: 1px; }

.site-foot {
  border-top: 1.5px solid var(--ink); padding: 30px 0; position: relative; z-index: 1;
  font-family: var(--mono); font-size: 12px; color: var(--ink-soft);
}
.site-foot__inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-foot a { color: var(--ink-soft); }
.site-foot__links { display: flex; gap: 18px; flex-wrap: wrap; }

main { position: relative; z-index: 1; }

/* --- index ------------------------------------------------------------- */
.masthead { padding: 56px 24px 30px; }
.filters { display: flex; gap: 8px; flex-wrap: wrap; padding-bottom: 20px; }
.split { display: grid; grid-template-columns: 1.55fr 1fr; gap: 26px; align-items: start; padding-top: 24px; }

.feature { display: flex; flex-direction: column; overflow: hidden; }
.feature__cover {
  aspect-ratio: 1200 / 560; border-bottom: 1.5px solid var(--ink);
  background-image: repeating-linear-gradient(135deg, #EAE1CC 0 10px, #E2D7BE 10px 20px);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--mono); font-size: 11.5px; letter-spacing: .14em;
  text-transform: uppercase; color: var(--ink-soft);
}
.feature__cover img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.feature__body { padding: 26px 24px 24px; display: flex; flex-direction: column; flex: 1; }
.feature__title {
  font-family: var(--display); font-weight: 700; text-transform: uppercase;
  font-size: clamp(24px, 3.2vw, 34px); line-height: 1.04; margin: 0 0 12px; max-width: 24ch;
}
.feature__title a { color: var(--ink); }
.feature__title a:hover { color: var(--blue); }
.feature__dek { font-size: 16px; color: var(--ink-soft); margin: 0 0 18px; max-width: 60ch; }
.feature__meta { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.feature__foot {
  margin-top: auto; display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding-top: 16px; border-top: 1.5px solid var(--ink);
}

.stack { display: flex; flex-direction: column; gap: 14px; }
.brief {
  display: block; background: var(--card); border: 1.5px solid var(--ink); border-radius: 4px;
  padding: 18px 18px 16px; box-shadow: 0 12px 26px -22px rgba(27, 24, 20, .55);
  color: var(--ink); transition: transform .15s ease, box-shadow .15s ease;
}
.brief:hover { transform: translateY(-3px); box-shadow: 0 20px 34px -24px rgba(27, 24, 20, .6); color: var(--ink); }
.brief__bar {
  display: flex; justify-content: space-between; gap: 10px; font-family: var(--mono);
  font-size: 10.5px; letter-spacing: .13em; text-transform: uppercase;
  color: var(--ink-soft); margin-bottom: 10px;
}
.brief__title {
  font-family: var(--display); font-weight: 600; text-transform: uppercase;
  font-size: 19px; line-height: 1.1; margin: 0 0 8px;
}
.brief__dek { font-size: 14.5px; color: var(--ink-soft); margin: 0 0 12px; }
.brief__more { font-family: var(--mono); font-size: 11px; color: var(--blue); letter-spacing: .06em; text-transform: uppercase; }

.archive { padding: 56px 24px 10px; }
.archive__head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 20px; margin-bottom: 22px; flex-wrap: wrap;
}
.archive__list { border-top: 1.5px solid var(--ink); }
.row {
  display: grid; grid-template-columns: 88px 1fr auto; gap: 18px; align-items: baseline;
  padding: 17px 2px; border-bottom: 1px solid var(--rule); color: var(--ink);
}
.row:hover { background: var(--card-alt); color: var(--ink); }
.row__date { font-family: var(--mono); font-size: 11.5px; color: var(--ink-soft); letter-spacing: .06em; }
.row__title { font-family: var(--display); font-weight: 600; text-transform: uppercase; font-size: 17px; letter-spacing: .01em; }
.row__dek { display: block; font-size: 14.5px; color: var(--ink-soft); margin-top: 4px; }

.band { background: var(--ink); color: var(--ink-invert); margin-top: 64px; padding: 60px 0; }
.band__inner { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: center; }
.band .kicker { color: rgba(245, 239, 228, .6); }
.band .kicker::before { display: none; }
.band p { color: rgba(231, 225, 213, .75); }
.band .display { color: var(--ink-invert); }
.band__actions { display: flex; gap: 14px; flex-wrap: wrap; }

.band--paper { background: var(--card-alt); color: var(--ink); border-top: 1.5px solid var(--ink); border-bottom: 1.5px solid var(--ink); margin-top: 0; padding: 56px 0; }
.band--paper .kicker { color: var(--ink-soft); }
.band--paper p { color: var(--ink-soft); }
.band--paper .display { color: var(--ink); }
.band--paper .band__actions { flex-direction: column; }

/* --- article ----------------------------------------------------------- */
.crumbs {
  padding-top: 22px; font-family: var(--mono); font-size: 11.5px; letter-spacing: .08em;
  text-transform: uppercase; color: var(--ink-soft); display: flex; gap: 10px; flex-wrap: wrap;
}
.crumbs a { color: var(--ink-soft); }
.crumbs a:hover { color: var(--ink); }

.article-head { padding-top: 26px; padding-bottom: 34px; border-bottom: 1.5px solid var(--ink); }
.article-head .display { font-size: clamp(34px, 5.6vw, 64px); line-height: .96; max-width: 22ch; margin-bottom: 18px; }
.article-head__lede { font-size: 19px; color: var(--ink-soft); margin: 0 0 24px; max-width: 56ch; text-wrap: pretty; }
.byline { display: flex; gap: 26px; flex-wrap: wrap; font-family: var(--mono); font-size: 12px; color: var(--ink-soft); }
.byline b { color: var(--ink); font-weight: 600; }
.article-head__cover {
  width: 100%; height: auto; aspect-ratio: 1200 / 560; object-fit: cover;
  display: block; margin-top: 30px; border: 1.5px solid var(--ink); border-radius: 4px;
}

.article-grid { padding: 40px 24px 72px; display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 48px; align-items: start; }

.toc { border: 1.5px solid var(--ink); border-radius: 4px; background: var(--card-alt); padding: 20px 22px; margin-bottom: 34px; }
.toc p { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-soft); margin: 0 0 12px; }
.toc ol { margin: 0; padding-left: 20px; font-size: 15px; line-height: 1.9; }

/* Article prose. Every element the sanitizer allows is styled here, so a
   heading or table authored in Markdown never lands unstyled. */
.prose { font-size: 18px; line-height: 1.72; }
.prose > p { margin: 0 0 22px; }
.prose h2 {
  font-family: var(--display); font-weight: 700; text-transform: uppercase;
  font-size: clamp(22px, 3vw, 30px); line-height: 1.08; margin: 38px 0 14px; scroll-margin-top: 90px;
}
.prose h3 { font-family: var(--display); font-weight: 600; text-transform: uppercase; font-size: 21px; line-height: 1.15; margin: 30px 0 12px; }
.prose ul, .prose ol { margin: 0 0 22px; padding-left: 22px; }
.prose li { margin-bottom: 8px; }
.prose blockquote {
  border-left: 3px solid var(--blue); padding: 6px 0 6px 26px; margin: 34px 0;
  font-family: var(--display); font-weight: 600; text-transform: uppercase;
  font-size: clamp(20px, 3vw, 28px); line-height: 1.15; max-width: 30ch;
}
.prose blockquote p { margin: 0; }
.prose code { font-family: var(--mono); font-size: .88em; background: var(--card-alt); padding: 2px 5px; border-radius: 2px; }
.prose pre { font-family: var(--mono); font-size: 13px; background: var(--ink); color: var(--ink-invert); padding: 18px 20px; border-radius: 4px; overflow-x: auto; }
.prose pre code { background: none; padding: 0; color: inherit; }
.prose hr { border: 0; border-top: 1.5px solid var(--ink); margin: 40px 0; }
.prose figure { margin: 0 0 12px; }
.prose figcaption { font-family: var(--mono); font-size: 11.5px; color: var(--ink-soft); margin-top: 8px; }

/* Data tables carry the evidence, so they get the card treatment and scroll
   inside their own box rather than widening the page. */
.prose table {
  width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 12.5px;
  background: var(--card); border: 1.5px solid var(--ink); border-radius: 4px; margin: 0 0 12px;
}
.prose thead th {
  text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--rule);
  color: var(--ink-soft); letter-spacing: .06em; text-transform: uppercase; font-weight: 500;
}
.prose tbody td { padding: 11px 14px; border-bottom: 1px solid var(--rule-soft); }
.prose tbody td:first-child { font-family: var(--sans); font-size: 15px; }
.prose tbody tr:last-child td { border-bottom: 0; }

.tool-card { border: 1.5px solid var(--ink); border-radius: 4px; background: var(--card); padding: 24px; margin: 0 0 30px; box-shadow: 0 18px 40px -24px rgba(27, 24, 20, .55); }
.tool-card h3 { font-family: var(--display); font-weight: 600; text-transform: uppercase; font-size: 22px; line-height: 1.1; margin: 0 0 8px; }
.tool-card p { font-size: 15px; color: var(--ink-soft); margin: 0 0 18px; max-width: 52ch; }

.colophon { border-top: 1.5px solid var(--ink); margin-top: 40px; padding-top: 22px; }
.colophon ul { margin: 0; padding-left: 18px; font-size: 15px; line-height: 1.8; color: var(--ink-soft); }
.colophon p { font-family: var(--mono); font-size: 11.5px; color: var(--ink-soft); }

.rail { position: sticky; top: 86px; display: flex; flex-direction: column; gap: 16px; }
.rail-card { background: var(--card); border: 1.5px solid var(--ink); border-radius: 4px; padding: 20px; }
.rail-card p.label { font-family: var(--mono); font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-soft); margin: 0 0 12px; }
.rail-card__links { display: flex; flex-direction: column; gap: 12px; }
.rail-card__links a {
  font-family: var(--display); font-weight: 600; text-transform: uppercase; font-size: 16px;
  line-height: 1.15; color: var(--ink); border-bottom: 1px solid var(--rule-soft); padding-bottom: 12px;
}
.rail-card__links a:last-child { border-bottom: 0; padding-bottom: 0; }
.rail-card__links a:hover { color: var(--blue); }

.offer { background: var(--ink); color: var(--ink-invert); border: 1.5px solid var(--ink); border-radius: 4px; padding: 24px 22px; box-shadow: 0 18px 40px -24px rgba(27, 24, 20, .55); }
.offer .label { color: var(--ember); }
.offer h3 { font-family: var(--display); font-weight: 700; text-transform: uppercase; font-size: 26px; line-height: 1; margin: 0 0 12px; }
.offer p { font-size: 14.5px; color: #CDC4AD; margin: 0 0 18px; }
.offer__price { border-top: 1px solid rgba(228, 217, 193, .3); padding-top: 14px; display: flex; align-items: flex-end; justify-content: space-between; gap: 12px; }
.offer__price b { font-family: var(--display); font-weight: 700; font-size: 26px; color: #fff; }
.offer__price span { font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: #BDB49D; }
.offer .btn { margin-top: 16px; width: 100%; }
.offer__note { font-family: var(--mono); font-size: 10.5px; color: #BDB49D; margin: 12px 0 0; text-align: center; }

/* --- calculator -------------------------------------------------------- */
.calc { display: grid; grid-template-columns: 1fr 1.15fr; gap: 26px; align-items: start; padding-bottom: 20px; }
.calc__inputs { padding: 22px; display: flex; flex-direction: column; gap: 22px; }
.field__head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 8px; }
.field__head label { font-family: var(--mono); font-size: 11.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-soft); }
.field__value { font-family: var(--display); font-weight: 700; font-size: 20px; color: var(--ink); }
.field input[type="range"] { width: 100%; height: 22px; cursor: pointer; accent-color: var(--blue); }
.field__hint { font-family: var(--mono); font-size: 10.5px; color: var(--ink-soft); margin: 4px 0 0; }

.readout { background: var(--ink); color: var(--ink-invert); border: 1.5px solid var(--ink); border-radius: 4px; padding: 26px 24px; box-shadow: 0 18px 40px -24px rgba(27, 24, 20, .55); }
.readout__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 18px; }
.readout__figure { font-family: var(--display); font-weight: 700; font-size: 38px; line-height: 1; color: #fff; }
.readout__figure.is-good { color: #9FE0B4; }
.readout__figure.is-bad { color: var(--ember); }
.readout__label { font-family: var(--mono); font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: #BDB49D; margin-top: 6px; }
.readout__verdict { margin-top: 22px; padding-top: 18px; border-top: 1px solid rgba(228, 217, 193, .3); font-family: var(--mono); font-size: 12.5px; color: var(--paper); }

.funnel__step { display: grid; grid-template-columns: 34px 1fr auto; gap: 16px; align-items: baseline; padding: 14px 22px; border-bottom: 1px solid var(--rule-soft); }
.funnel__step:last-child { border-bottom: 0; }
.funnel__no { font-family: var(--display); font-weight: 700; font-size: 16px; color: var(--red); }
.funnel__label { font-family: var(--display); font-weight: 600; text-transform: uppercase; font-size: 15.5px; }
.funnel__formula { display: block; font-family: var(--mono); font-size: 11px; color: var(--ink-soft); margin-top: 3px; }
.funnel__value { font-family: var(--display); font-weight: 700; font-size: 22px; color: var(--ink); }

.caveat { border: 1.5px solid var(--rule); border-radius: 4px; padding: 16px 18px; }
.caveat p { font-family: var(--mono); font-size: 11px; color: var(--ink-soft); margin: 0; }

.save-strip { background: var(--card-alt); border: 1.5px solid var(--ink); border-radius: 4px; padding: 26px 24px; display: grid; grid-template-columns: 1.2fr auto; gap: 26px; align-items: center; }
.save-strip h3 { font-family: var(--display); font-weight: 700; text-transform: uppercase; font-size: 24px; line-height: 1.05; margin: 0 0 8px; }
.save-strip p { font-size: 15px; color: var(--ink-soft); margin: 0; max-width: 52ch; }

/* --- responsive -------------------------------------------------------- */
@media (max-width: 900px) {
  .split, .article-grid, .calc, .band__inner, .save-strip { grid-template-columns: 1fr; }
  .article-grid { gap: 34px; }
  .rail { position: static; }
  .row { grid-template-columns: 1fr; gap: 6px; }
  .row .chip { justify-self: start; }
  .band { padding: 44px 0; margin-top: 44px; }
  .masthead { padding-top: 40px; }
}

@media (prefers-reduced-motion: reduce) {
  .brief { transition: none; }
  .brief:hover { transform: none; }
}

:where(a, button, input, [tabindex]):focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

.table-scroll { overflow-x: auto; margin: 0 0 12px; }
.table-scroll table { min-width: 460px; margin: 0; }