/* ============================================================
   BOSSEO Growth Brief — editorial system for bosseo.com/blog/
   Bold, brutalist-editorial. Paper background, huge display type,
   two color-coded series (Growth Leak / Daily Marketing Tip).
   ============================================================ */
:root {
  --ink: #101112;
  --paper: #f4f1e9;
  --white: #fffefa;
  --muted: #6e6d68;
  --line: #c9c5bb;
  --leak: #ff4b2b;
  --tip: #c8ff22;
  --blue: #314cff;
  --sans: 'Geist', Arial, sans-serif;
  --mono: 'Geist Mono', monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
img { max-width: 100%; }
.shell { width: min(1480px, calc(100% - 48px)); margin-inline: auto; }

/* ── site header / footer (hub pages) ─────────────────────── */
.site-header, .article-header { min-height: 92px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 22px; font-weight: 900; letter-spacing: -.04em; }
.brand-mark { display: grid; place-items: center; width: 38px; height: 38px; background: var(--ink); color: var(--white); border-radius: 50%; font-size: 20px; }
.brand-divider { width: 1px; height: 24px; background: var(--line); }
.brand-section { color: var(--muted); font-size: 17px; font-weight: 600; letter-spacing: -.02em; }
.site-header nav { display: flex; align-items: center; gap: 36px; font-size: 16px; font-weight: 700; }
.site-header nav a:hover, .back-link:hover { opacity: .58; }
.header-cta { padding: 14px 18px; border: 1px solid var(--ink); display: flex; gap: 28px; }

.site-footer { min-height: 180px; display: grid; grid-template-columns: 1fr 1fr auto; gap: 40px; align-items: center; border-top: 1px solid var(--line); }
.site-footer > p { color: var(--muted); font-size: 17px; }
.site-footer > div { display: grid; text-align: right; gap: 8px; font-size: 16px; font-weight: 700; }
.site-footer > div span { color: var(--muted); font-weight: 500; }

/* ── archive hero + signal strip ──────────────────────────── */
.archive-hero { padding: 78px 0 64px; }
.hero-kicker { display: flex; align-items: center; gap: 12px; font-size: 16px; font-weight: 800; text-transform: uppercase; letter-spacing: .12em; }
.hero-kicker span { width: 12px; height: 12px; border-radius: 50%; background: var(--leak); box-shadow: 18px 0 0 var(--tip); margin-right: 18px; }
.archive-hero h1 { margin: 50px 0 52px; max-width: 1250px; font-size: clamp(52px, 10.2vw, 154px); line-height: .84; letter-spacing: -.085em; font-weight: 900; }
.archive-hero h1 em { color: var(--blue); font-style: normal; }
.hero-bottom { display: grid; grid-template-columns: 1fr auto; gap: 60px; align-items: end; padding-left: 32%; }
.hero-bottom > p { max-width: 690px; font-size: clamp(20px, 2vw, 28px); line-height: 1.35; letter-spacing: -.03em; margin: 0; }
.hero-index { min-width: 250px; border-left: 1px solid var(--line); padding-left: 26px; display: flex; gap: 18px; align-items: center; }
.hero-index strong { font: 700 60px/1 var(--mono); }
.hero-index span { color: var(--muted); font-size: 16px; line-height: 1.45; text-transform: uppercase; letter-spacing: .06em; }

.signal-strip { overflow: hidden; background: var(--ink); color: var(--white); transform: rotate(-1deg); width: 102%; margin-left: -1%; }
.signal-strip > div { min-height: 62px; display: flex; align-items: center; justify-content: space-around; gap: 28px; white-space: nowrap; font-size: 17px; font-weight: 850; letter-spacing: .1em; overflow-x: auto; }
.signal-strip i { color: var(--tip); font-style: normal; }

/* ── post cards ────────────────────────────────────────────── */
.featured, .series-section { padding: 100px 0; }
.section-heading { display: flex; justify-content: space-between; align-items: end; border-bottom: 1px solid var(--line); padding-bottom: 30px; margin-bottom: 42px; gap: 20px; flex-wrap: wrap; }
.section-heading > div { display: flex; gap: 24px; align-items: flex-start; }
.section-heading span { font: 700 17px var(--mono); color: var(--muted); padding-top: 11px; }
.section-heading h2 { margin: 0; font-size: clamp(38px, 6vw, 84px); line-height: .95; letter-spacing: -.065em; }
.section-heading > p { margin: 0; text-align: right; color: var(--muted); font-size: 17px; line-height: 1.45; font-weight: 650; }

.featured-grid { display: grid; grid-template-columns: 1.08fr .92fr; gap: 24px; }
.archive-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.archive-grid .post-card { min-height: 440px; }
.post-card { min-height: 460px; border: 1px solid var(--ink); display: flex; flex-direction: column; padding: 28px; background: var(--white); position: relative; overflow: hidden; transition: transform .25s ease, box-shadow .25s ease; }
.post-card:hover { transform: translateY(-7px); box-shadow: 10px 10px 0 var(--ink); }
.featured-card:first-child { min-height: 580px; }
.leak-card { background: var(--leak); }
.tip-card { background: var(--tip); }
.card-topline, .card-footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.series-pill { border: 1px solid currentColor; border-radius: 99px; padding: 10px 14px; font-size: 15px; font-weight: 850; text-transform: uppercase; letter-spacing: .08em; }
.issue-number { font: 800 clamp(36px, 5vw, 64px)/.85 var(--mono); letter-spacing: -.08em; }
.card-body { margin: auto 0; max-width: 820px; }
.card-eyebrow { text-transform: uppercase; font-size: 15px; font-weight: 850; letter-spacing: .12em; margin: 0 0 20px; }
.card-body h2 { margin: 0; font-size: clamp(34px, 5vw, 68px); line-height: .96; letter-spacing: -.06em; max-width: 900px; }
.tip-card .card-body h2 { font-size: clamp(32px, 4.4vw, 56px); }
.card-summary { max-width: 670px; font-size: 18px; line-height: 1.55; margin: 24px 0 0; font-weight: 580; }
.card-footer { border-top: 1px solid currentColor; padding-top: 22px; font-size: 15px; font-weight: 700; }
.card-footer a { margin-left: auto; display: flex; gap: 20px; align-items: center; font-size: 17px; font-weight: 850; }

.series-section { border-top: 1px solid var(--line); }
.archive-controls { display: flex; justify-content: space-between; gap: 30px; align-items: end; margin-bottom: 30px; flex-wrap: wrap; }
.filter-group { display: flex; gap: 10px; flex-wrap: wrap; }
.filter-group a, .filter-group button { border: 1px solid var(--ink); background: transparent; border-radius: 99px; padding: 13px 20px; font-size: 16px; font-weight: 750; cursor: pointer; display: inline-block; }
.filter-group a.active, .filter-group button.active, .filter-group a:hover, .filter-group button:hover { background: var(--ink); color: var(--white); }
.search-box { width: min(100%, 410px); display: grid; gap: 8px; }
.search-box span { font-size: 15px; font-weight: 800; text-transform: uppercase; letter-spacing: .08em; }
.search-box input { width: 100%; border: 0; border-bottom: 2px solid var(--ink); background: transparent; padding: 10px 0 12px; outline: none; font-size: 17px; font-family: var(--sans); }
.empty-state { grid-column: 1 / -1; min-height: 220px; border: 1px dashed var(--muted); display: grid; place-content: center; gap: 8px; text-align: center; }
.empty-state strong { font-size: 28px; }
.empty-state span { color: var(--muted); font-size: 18px; }

.blog-pagination { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; padding: 50px 0 0; }
.blog-pagination a, .blog-pagination span { border: 1px solid var(--ink); border-radius: 99px; padding: 11px 18px; font-size: 15px; font-weight: 750; }
.blog-pagination span.active { background: var(--ink); color: var(--white); }
.blog-pagination span.disabled { opacity: .35; border-color: var(--line); }

/* ── manifesto + newsletter ────────────────────────────────── */
.series-manifesto { padding: 100px 0; border-top: 1px solid var(--line); }
.manifesto-label { font-size: 16px; text-transform: uppercase; letter-spacing: .12em; font-weight: 850; margin-bottom: 50px; }
.manifesto-grid { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--ink); }
.manifesto-copy { padding: 44px; min-height: 460px; display: flex; flex-direction: column; align-items: flex-start; }
.manifesto-copy + .manifesto-copy { border-left: 1px solid var(--ink); }
.manifesto-number { font: 700 18px var(--mono); }
.manifesto-series { margin: auto 0 22px; padding: 9px 13px; border-radius: 99px; text-transform: uppercase; font-size: 15px; font-weight: 900; letter-spacing: .08em; }
.leak-text { background: var(--leak); }
.tip-text { background: var(--tip); }
.manifesto-copy h2 { font-size: clamp(32px, 4vw, 52px); line-height: .98; letter-spacing: -.05em; margin: 0 0 24px; }
.manifesto-copy > p:last-child { font-size: 18px; line-height: 1.55; color: var(--muted); max-width: 570px; margin: 0; }

.newsletter { margin-bottom: 100px; background: var(--blue); color: var(--white); padding: 60px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 60px; align-items: end; }
.newsletter-kicker { text-transform: uppercase; font-weight: 850; letter-spacing: .12em; }
.newsletter h2 { font-size: clamp(38px, 5.3vw, 70px); line-height: .92; letter-spacing: -.055em; margin: 60px 0 0; }
.newsletter form { display: grid; gap: 14px; }
.newsletter label { font-size: 16px; font-weight: 800; text-transform: uppercase; letter-spacing: .1em; }
.email-row { display: grid; grid-template-columns: 1fr auto; border-bottom: 2px solid var(--white); }
.email-row input { min-width: 0; border: 0; background: transparent; color: var(--white); padding: 18px 0; font-size: 20px; outline: none; font-family: var(--sans); }
.email-row input::placeholder { color: #b9c0ff; }
.email-row button { border: 0; background: var(--tip); color: var(--ink); padding: 15px 20px; font-weight: 850; cursor: pointer; }
.newsletter form > p { color: #d6d9ff; font-size: 15px; margin: 0; }
.newsletter-note { color: #d6d9ff; font-size: 15px; margin: 8px 0 0; }

/* ── article page ──────────────────────────────────────────── */
.article-page { --accent: var(--leak); background: var(--paper); min-height: 100vh; }
.article-page.article-tip { --accent: var(--tip); }
.back-link { font-size: 17px; font-weight: 750; }
.article-hero { padding: 50px 0 70px; }
.article-meta-row { display: flex; flex-wrap: wrap; gap: 0; align-items: center; text-transform: uppercase; font-size: 15px; font-weight: 800; letter-spacing: .08em; }
.article-meta-row span { padding: 7px 20px 7px 0; margin-right: 20px; border-left: 1px solid var(--line); padding-left: 20px; }
.article-meta-row span:first-child { padding-left: 0; border-left: 0; margin-left: 0; }
.article-series { color: var(--accent); -webkit-text-stroke: .5px var(--ink); }
.article-title-grid { display: grid; grid-template-columns: 1fr auto; gap: 40px; align-items: end; margin-top: 60px; }
.article-eyebrow { margin: 0 0 20px; font-size: 17px; font-weight: 850; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.article-title-grid h1 { margin: 0; max-width: 1100px; font-size: clamp(42px, 8.8vw, 116px); line-height: .9; letter-spacing: -.06em; }
.hero-issue { font: 800 clamp(70px, 16vw, 200px)/.75 var(--mono); color: var(--accent); letter-spacing: -.12em; -webkit-text-stroke: 1px var(--ink); }
.article-dek { max-width: 930px; margin: 50px 0 0; font-size: clamp(21px, 2.6vw, 32px); line-height: 1.32; letter-spacing: -.03em; color: #292a2b; }
.article-rule { height: 16px; background: var(--accent); border-block: 1px solid var(--ink); }
.article-layout { display: grid; grid-template-columns: 260px minmax(0, 820px); gap: clamp(40px, 10vw, 140px); justify-content: center; padding-block: 80px 100px; }
.article-sidebar { position: sticky; top: 30px; height: fit-content; border-top: 2px solid var(--ink); padding-top: 18px; }
.article-sidebar > p { margin: 0 0 22px; font-size: 15px; font-weight: 850; text-transform: uppercase; letter-spacing: .1em; }
.article-sidebar ol { list-style: none; padding: 0; margin: 0; display: grid; }
.article-sidebar li { border-top: 1px solid var(--line); }
.article-sidebar a { display: block; padding: 14px 0; color: var(--muted); font-size: 15px; line-height: 1.35; }
.article-sidebar a:hover { color: var(--ink); }
.article-body-col { min-width: 0; }
.article-content { counter-reset: section; }

.article-content > h2 { counter-increment: section; font-size: clamp(32px, 5vw, 54px); line-height: 1.02; letter-spacing: -.05em; margin: 90px 0 28px; }
.article-content > h2:first-child, .article-content > h2:first-of-type { margin-top: 0; }
.article-content > h2::before { content: counter(section, decimal-leading-zero) ' / '; color: var(--accent); -webkit-text-stroke: .6px var(--ink); font: 700 15px/1 var(--mono); display: block; letter-spacing: .06em; margin-bottom: 18px; }
.article-content > h3 { font-size: clamp(22px, 2.6vw, 30px); letter-spacing: -.03em; margin: 46px 0 16px; }
.article-content > p { font-family: Georgia, 'Times New Roman', serif; font-size: 21px; line-height: 1.72; margin: 0 0 26px; color: #292a2b; }
.article-content > p:first-of-type { font-family: var(--sans); font-size: clamp(26px, 3.6vw, 40px); line-height: 1.14; letter-spacing: -.03em; font-weight: 650; color: var(--ink); margin-bottom: 44px; }
.article-content > p:first-of-type::first-letter { float: left; font-size: 2.6em; line-height: .8; margin: .04em .1em 0 0; color: var(--accent); font-weight: 900; -webkit-text-stroke: 1px var(--ink); }
.article-content > ul, .article-content > ol { margin: 0 0 30px; padding: 0; list-style: none; border-top: 2px solid var(--ink); counter-reset: li; }
.article-content > ul > li, .article-content > ol > li { counter-increment: li; position: relative; padding: 18px 0 18px 58px; border-bottom: 1px solid var(--line); font-family: Georgia, serif; font-size: 19px; line-height: 1.5; color: #292a2b; }
.article-content > ul > li::before, .article-content > ol > li::before { content: counter(li, decimal-leading-zero); position: absolute; left: 0; top: 20px; font: 700 15px var(--mono); color: var(--accent); -webkit-text-stroke: .5px var(--ink); }
.article-content strong { font-weight: 750; color: var(--ink); }
.article-content > p a, .article-content > ul a, .article-content > ol a { border-bottom: 1px solid var(--accent); font-weight: 650; }
.article-content > blockquote { margin: 70px 0; padding: 44px; background: var(--ink); color: var(--white); position: relative; }
.article-content blockquote::before { content: '\201C'; display: block; color: var(--accent); font: 900 84px/.6 Georgia, serif; margin-bottom: 6px; }
.article-content blockquote p { font-family: var(--sans); color: var(--white); font-size: clamp(28px, 4vw, 44px); line-height: 1.08; letter-spacing: -.04em; font-weight: 800; margin: 0; }

.blog-cta-box { margin-top: 60px; border: 1px solid var(--ink); padding: 38px; display: grid; grid-template-columns: auto 1fr auto; gap: 30px; align-items: center; background: var(--accent); }
.blog-cta-box .cta-icon { display: grid; place-items: center; width: 60px; height: 60px; border-radius: 50%; background: var(--ink); color: var(--white); font-size: 26px; flex-shrink: 0; }
.blog-cta-box .cta-copy p:first-child { margin: 0 0 8px; text-transform: uppercase; font-size: 15px; font-weight: 900; letter-spacing: .1em; }
.blog-cta-box .cta-copy h4 { margin: 0; font-size: clamp(22px, 3vw, 32px); line-height: 1.15; letter-spacing: -.03em; }
.blog-cta-box .cta-copy p.cta-text { margin: 10px 0 0; font-size: 16px; font-weight: 550; max-width: 480px; }
.blog-cta-box .btn-grad { border: 1px solid var(--ink); background: var(--ink); color: var(--white); padding: 15px 22px; font-weight: 800; white-space: nowrap; display: inline-flex; gap: 12px; align-items: center; }

.as-seen-on { margin-top: 44px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.as-seen-on-label { font-size: 15px; font-weight: 850; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.as-seen-on-links { display: flex; flex-wrap: wrap; gap: 10px; }
.as-seen-on-links a { border: 1px solid var(--ink); padding: 9px 14px; border-radius: 99px; font-size: 14px; font-weight: 750; }
.as-seen-on-links a:hover { background: var(--ink); color: var(--white); }

.article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 44px; }
.article-tags span { border: 1px solid var(--ink); padding: 10px 13px; border-radius: 99px; font-size: 15px; font-weight: 750; }

.related-wrap { padding: 80px 0 0; }
.related-head { text-transform: uppercase; font-size: 15px; font-weight: 850; letter-spacing: .1em; margin: 0 0 24px; color: var(--muted); }
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
/* These 3 cards sit inside the ~820px article column (not the full 1480px
   shell the hub page's 2-up grids assume), so the display-type sizes tuned
   for that wider grid are far too large here — cut them down for this
   narrower context instead of the hub's featured/archive-grid cards. */
.post-grid .post-card { min-height: 300px; padding: 22px; }
.post-grid .card-topline { margin-bottom: 4px; }
.post-grid .series-pill { font-size: 12px; padding: 7px 10px; }
.post-grid .card-body { margin: 18px 0; }
.post-grid .card-eyebrow { font-size: 12px; margin-bottom: 10px; }
.post-grid .card-body h2 { font-size: 20px; line-height: 1.22; letter-spacing: -.02em; max-width: none; }
.post-grid .card-summary { font-size: 14px; line-height: 1.5; margin-top: 10px; }
.post-grid .card-footer { font-size: 12px; padding-top: 14px; flex-wrap: wrap; row-gap: 8px; }
.post-grid .card-footer a { font-size: 13px; }

.article-next { padding: 90px 0; border-top: 1px solid var(--line); }
.article-next > p { text-transform: uppercase; font-size: 15px; font-weight: 850; letter-spacing: .1em; margin: 0 0 22px; color: var(--muted); }
.article-next > a { display: grid; grid-template-columns: 200px 1fr auto; gap: 30px; align-items: center; border-block: 1px solid var(--ink); padding: 32px 0; }
.article-next > a > span { font-size: 16px; font-weight: 750; color: var(--muted); }
.article-next strong { font-size: clamp(28px, 4vw, 50px); line-height: 1; letter-spacing: -.045em; }
.article-next i { display: grid; place-items: center; width: 64px; height: 64px; background: var(--ink); color: var(--white); border-radius: 50%; font-style: normal; font-size: 24px; }

.article-footer { min-height: 170px; border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1fr auto; gap: 30px; align-items: center; }
.article-footer strong { font-size: 32px; letter-spacing: -.06em; }
.article-footer p { color: var(--muted); font-size: 17px; }
.article-footer a { padding: 16px 20px; background: var(--ink); color: var(--white); font-weight: 800; display: flex; gap: 24px; }

/* ── responsive ────────────────────────────────────────────── */
@media (max-width: 900px) {
  .shell { width: min(100% - 28px, 1480px); }
  .site-header, .article-header { min-height: 78px; }
  .brand-section, .site-header nav > a:not(.header-cta) { display: none; }
  .site-header nav { gap: 0; }
  .header-cta { padding: 11px 13px; gap: 14px; font-size: 15px; }
  .archive-hero { padding: 50px 0 40px; }
  .archive-hero h1 { margin: 40px 0; }
  .hero-bottom { padding-left: 0; grid-template-columns: 1fr; gap: 28px; }
  .hero-index { border-left: 0; border-top: 1px solid var(--line); padding: 18px 0 0; }
  .signal-strip > div { justify-content: flex-start; padding-inline: 20px; }
  .featured, .series-section, .series-manifesto { padding: 64px 0; }
  .section-heading { align-items: start; }
  .section-heading > p { display: none; }
  .featured-grid, .archive-grid, .manifesto-grid, .newsletter { grid-template-columns: 1fr; }
  .post-card, .featured-card:first-child, .archive-grid .post-card { min-height: 420px; padding: 22px; }
  .post-card:hover { transform: none; box-shadow: none; }
  .card-footer { align-items: flex-end; flex-wrap: wrap; }
  .archive-controls { align-items: stretch; flex-direction: column; }
  .search-box { width: 100%; }
  .manifesto-copy { min-height: auto; padding: 26px; }
  .manifesto-copy + .manifesto-copy { border-left: 0; border-top: 1px solid var(--ink); }
  .newsletter { width: 100%; padding: 44px 22px; gap: 40px; margin-bottom: 60px; }
  .newsletter h2 { margin-top: 40px; }
  .email-row { grid-template-columns: 1fr; gap: 12px; border-bottom: 0; }
  .email-row input { border-bottom: 2px solid var(--white); }
  .site-footer, .article-footer { min-height: auto; grid-template-columns: 1fr; gap: 16px; padding-block: 32px; text-align: left; }
  .site-footer > div, .article-footer { text-align: left; }

  .article-meta-row { row-gap: 8px; }
  .article-meta-row span { padding-left: 12px; margin-right: 12px; }
  .article-title-grid { grid-template-columns: 1fr; margin-top: 40px; gap: 20px; }
  .hero-issue { grid-row: 1; font-size: 80px; }
  .article-dek { margin-top: 36px; }
  .article-layout { grid-template-columns: 1fr; padding-block: 50px 70px; }
  .article-sidebar { display: none; }
  .article-content h2 { margin-top: 60px; }
  .article-content blockquote { padding: 26px 20px; margin: 50px 0; }
  .blog-cta-box { grid-template-columns: 1fr; text-align: left; }
  .post-grid { grid-template-columns: 1fr; }
  .article-next > a { grid-template-columns: 1fr auto; }
  .article-next > a > span { grid-column: 1 / -1; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}