/* Blog stylesheet — shared by /blog/ index and every post.
   Tokens, nav, and footer are lifted verbatim from the service pages so the
   blog matches the rest of the site. New here: .post-hero, .prose, .post-card.
   ponytail: one shared file instead of inlining 700 lines per post. */

/* ─── TOKENS ──────────────────────────────────────────────────────────── */
:root {
  --color-paper:        oklch(98.5% 0.006 264);
  --color-surface:      oklch(95%   0.018 264);
  --color-surface-2:    oklch(91%   0.025 264);
  --color-ink:          oklch(12%   0.020 264);
  --color-ink-2:        oklch(38%   0.015 264);
  --color-ink-3:        oklch(58%   0.010 264);
  --color-rule:         oklch(88%   0.014 264);
  --color-accent:       oklch(46%   0.280 264);
  --color-accent-deep:  oklch(33%   0.220 264);
  --color-accent-mid:   oklch(65%   0.180 264);
  --color-accent-wash:  oklch(94%   0.040 264);
  --color-warm:         oklch(74%   0.140  78);
  --color-focus:        oklch(46%   0.280 264);

  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;

  --text-xs:        0.75rem;
  --text-sm:        0.875rem;
  --text-base:      1rem;
  --text-lg:        1.125rem;
  --text-xl:        1.25rem;
  --text-2xl:       1.5rem;
  --text-3xl:       1.875rem;
  --text-4xl:       2.25rem;
  --text-display-s: 3rem;
  --text-display:   3.75rem;
  --text-display-l: 5rem;

  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --ease-out:    cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast:    130ms;
  --dur-base:    220ms;
  --dur-slow:    380ms;

  --radius-sm:   4px;
  --radius-md:   10px;
  --radius-lg:   18px;
  --radius-xl:   28px;
  --radius-full: 9999px;
}

/* ─── RESET ───────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { overflow-x: clip; scroll-behavior: smooth; }
body {
  overflow-x: clip;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-ink);
  background: var(--color-paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; font-family: var(--font-body); border: none; background: none; }
ul { list-style: none; }

/* ─── SKIP LINK ───────────────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-accent);
  color: var(--color-paper);
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  z-index: 200;
  transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus { top: var(--space-4); }

/* ─── NAV ─────────────────────────────────────────────────────────────── */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklch, var(--color-paper) 90%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-rule);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}
.nav-logo { height: 52px; width: auto; display: block; mix-blend-mode: multiply; }
.nav-links { display: flex; align-items: center; gap: var(--space-8); }
.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-ink-2);
  letter-spacing: 0.01em;
  transition: color var(--dur-fast) var(--ease-out);
}
.nav-links a:hover { color: var(--color-accent); }
.nav-links a[aria-current="page"] { color: var(--color-accent); font-weight: 600; }
.nav-links a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}
.nav-item { position: relative; }
.nav-item > a { display: inline-flex; align-items: center; gap: 5px; }
.nav-caret { font-size: 0.55em; transition: transform var(--dur-fast) var(--ease-out); }
.nav-item:hover .nav-caret,
.nav-item:focus-within .nav-caret { transform: rotate(180deg); }
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 210px;
  padding: var(--space-2);
  background: var(--color-paper);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-md);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.12);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out),
              visibility var(--dur-fast);
  z-index: 60;
}
.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown li { list-style: none; }
.nav-dropdown a {
  display: block;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  white-space: nowrap;
}
.nav-dropdown a:hover { background: color-mix(in oklch, var(--color-accent) 8%, transparent); }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 11px 10px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform var(--dur-fast) var(--ease-out),
              opacity var(--dur-fast) var(--ease-out);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-cta-li { display: none; }
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-5);
  background: var(--color-accent);
  color: var(--color-paper);
  font-size: var(--text-sm);
  font-weight: 600;
  border-radius: var(--radius-full);
  letter-spacing: 0.01em;
  transition: background var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.nav-cta:hover { background: var(--color-accent-deep); transform: translateY(-1px); }
.nav-cta:active { transform: translateY(0) scale(0.97); }
.nav-cta:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }

/* ─── BUTTONS ─────────────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  background: var(--color-accent);
  color: var(--color-paper);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-full);
  letter-spacing: 0.01em;
  border: 2px solid transparent;
  transition: background var(--dur-base) var(--ease-out),
              transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out);
}
.btn-primary:hover {
  background: var(--color-accent-deep);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px oklch(46% 0.28 264 / 0.28);
}
.btn-primary:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 4px; }
.btn-primary:active { transform: translateY(0) scale(0.98); box-shadow: none; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-accent);
  border: none;
  background: none;
  padding: 0;
  border-bottom: 1.5px solid currentColor;
  padding-bottom: 1px;
  transition: color var(--dur-fast) var(--ease-out), gap var(--dur-fast) var(--ease-out);
}
.btn-ghost:hover { color: var(--color-accent-deep); gap: var(--space-3); }
.btn-ghost:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ─── BLOG HERO (index + post share it) ───────────────────────────────── */
.post-hero {
  background: var(--color-ink);
  padding: var(--space-24) var(--space-6) var(--space-20);
}
.post-hero-inner {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent-mid);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.hero-eyebrow::before {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--color-accent-mid);
  flex-shrink: 0;
}
.post-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(var(--text-3xl), 4.4vw, var(--text-display));
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.024em;
  color: var(--color-paper);
  overflow-wrap: anywhere;
  min-width: 0;
}
.post-hero h1 em { font-style: italic; color: var(--color-accent-mid); }
.post-hero .hero-sub {
  font-size: var(--text-lg);
  color: oklch(80% 0.012 264);
  line-height: 1.6;
  max-width: 56ch;
}

/* Byline row under the post title */
.post-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: oklch(62% 0.012 264);
}
.post-meta .author { color: var(--color-paper); font-weight: 600; }
.post-meta .dot { color: oklch(40% 0.012 264); }

/* ─── ARTICLE PROSE ───────────────────────────────────────────────────── */
.post-body { padding: var(--space-20) var(--space-6); }
.prose {
  max-width: 68ch;
  margin: 0 auto;
  font-size: var(--text-lg);
  line-height: 1.75;
  color: var(--color-ink-2);
}
.prose > * + * { margin-top: var(--space-6); }
.prose p { overflow-wrap: break-word; }
.prose .lede { font-size: var(--text-xl); color: var(--color-ink); line-height: 1.6; }
.prose h2 {
  font-family: var(--font-display);
  font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  margin-top: var(--space-16);
  overflow-wrap: anywhere;
}
.prose h2 em { font-style: italic; color: var(--color-accent); }
.prose h3 {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-ink);
  margin-top: var(--space-10);
}
.prose strong { color: var(--color-ink); font-weight: 700; }
.prose em { font-style: italic; }
.prose a {
  color: var(--color-accent);
  border-bottom: 1.5px solid color-mix(in oklch, var(--color-accent) 35%, transparent);
  transition: border-color var(--dur-fast) var(--ease-out);
}
.prose a:hover { border-bottom-color: var(--color-accent); }
.prose a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: 2px;
}
.prose ul { display: flex; flex-direction: column; gap: var(--space-4); }
.prose ul li { padding-left: var(--space-6); position: relative; }
.prose ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: var(--color-accent-mid);
}

/* Pull-quote / callout inside a post */
.prose blockquote {
  border-left: 3px solid var(--color-accent);
  padding: var(--space-2) 0 var(--space-2) var(--space-6);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  line-height: 1.45;
  color: var(--color-ink);
}

/* End-of-post CTA */
.post-cta {
  max-width: 68ch;
  margin: var(--space-20) auto 0;
  padding: var(--space-10);
  background: var(--color-accent-wash);
  border: 1px solid color-mix(in oklch, var(--color-accent) 18%, transparent);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  align-items: flex-start;
}
.post-cta h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-ink);
}
.post-cta p { font-size: var(--text-base); color: var(--color-ink-2); max-width: 52ch; }

/* ─── INDEX: POST LIST ────────────────────────────────────────────────── */
.post-list {
  max-width: 860px;
  margin: 0 auto;
  padding: var(--space-20) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.post-card {
  display: block;
  padding: var(--space-10);
  background: var(--color-paper);
  border: 1px solid var(--color-rule);
  border-radius: var(--radius-lg);
  transition: border-color var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out);
}
.post-card:hover {
  border-color: color-mix(in oklch, var(--color-accent) 45%, transparent);
  transform: translateY(-3px);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.07);
}
.post-card:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 4px; }
.post-card .card-date {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
}
.post-card h2 {
  font-family: var(--font-display);
  font-size: clamp(var(--text-xl), 2.6vw, var(--text-3xl));
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.018em;
  color: var(--color-ink);
  margin-top: var(--space-3);
  overflow-wrap: anywhere;
}
.post-card p {
  font-size: var(--text-base);
  color: var(--color-ink-2);
  line-height: 1.6;
  max-width: 62ch;
  margin-top: var(--space-4);
}
.post-card .card-more {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-5);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
}
.post-card:hover .card-more { gap: var(--space-3); }

/* ─── FOOTER ──────────────────────────────────────────────────────────── */
.footer {
  background: var(--color-ink);
  border-top: 1px solid oklch(20% 0.02 264);
  padding: var(--space-16) var(--space-6) var(--space-8);
}
.footer-inner { max-width: 1200px; margin: 0 auto; }
.footer-top {
  display: flex;
  justify-content: space-between;
  gap: var(--space-16);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid oklch(22% 0.015 264);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}
.footer-brand { max-width: 340px; display: flex; flex-direction: column; gap: var(--space-4); }
.footer-wordmark {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  font-family: var(--font-display);
  color: var(--color-paper);
}
.wordmark-the { font-style: italic; font-size: var(--text-lg); color: oklch(64% 0.012 264); }
.wordmark-coo { font-size: var(--text-2xl); font-weight: 800; letter-spacing: 0.02em; }
.wordmark-consultant { font-size: var(--text-lg); font-weight: 500; color: oklch(78% 0.010 264); }
.footer-tagline { font-size: var(--text-sm); color: oklch(58% 0.012 264); line-height: 1.6; }
.footer-email {
  font-size: var(--text-sm);
  color: var(--color-accent-mid);
  transition: color var(--dur-fast) var(--ease-out);
}
.footer-email:hover { color: oklch(75% 0.15 264); }
.footer-email:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
.footer-nav { display: flex; gap: var(--space-16); }
.footer-col h4 {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: oklch(48% 0.012 264);
  margin-bottom: var(--space-5);
}
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer-col a {
  font-size: var(--text-sm);
  color: oklch(64% 0.012 264);
  transition: color var(--dur-fast) var(--ease-out);
}
.footer-col a:hover { color: var(--color-paper); }
.footer-col a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  padding-top: var(--space-8);
}
.footer-copy { font-size: var(--text-xs); color: oklch(42% 0.010 264); }
.footer-social { display: flex; gap: var(--space-3); }
.social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  border: 1px solid oklch(24% 0.015 264);
  display: flex;
  align-items: center;
  justify-content: center;
  color: oklch(58% 0.012 264);
  transition: color var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out);
}
.social-link:hover { color: var(--color-paper); border-color: oklch(42% 0.018 264); }
.social-link:focus-visible { outline: 2px solid var(--color-focus); outline-offset: 3px; }
.social-link svg { width: 15px; height: 15px; }

/* ─── RESPONSIVE ──────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-cta { display: none; }
  .nav-inner { flex-wrap: wrap; }
  .nav-links {
    display: none;
    order: 3;
    flex-basis: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-top: var(--space-2);
    padding-bottom: var(--space-3);
  }
  .nav-links.is-open { display: flex; }
  .nav-links > li { width: 100%; }
  .nav-links > li + li { border-top: 1px solid var(--color-rule); }
  .nav-links a { padding: var(--space-3) var(--space-1); }
  .nav-caret { display: none; }
  .nav-dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    min-width: 0;
    padding: 0 0 var(--space-2) var(--space-4);
    border: none;
    box-shadow: none;
    background: none;
  }
  .nav-cta-li { display: block; }
  .nav-cta-li a {
    display: inline-block;
    margin-top: var(--space-3);
    padding: var(--space-3) var(--space-6);
    background: var(--color-accent);
    color: var(--color-paper);
    border-radius: var(--radius-full);
    font-weight: 600;
    text-align: center;
  }
  .post-hero { padding: var(--space-16) var(--space-4); }
  .post-hero h1 { font-size: clamp(var(--text-2xl), 8.5vw, var(--text-display-s)); }
  .post-body { padding: var(--space-12) var(--space-4); }
  .prose { font-size: var(--text-base); }
  .prose .lede { font-size: var(--text-lg); }
  .post-cta { padding: var(--space-6); }
  .post-list { padding: var(--space-12) var(--space-4); }
  .post-card { padding: var(--space-6); }
  .footer-top { flex-direction: column; gap: var(--space-10); }
  .footer-nav { flex-wrap: wrap; gap: var(--space-10); }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* ─── REDUCED MOTION ──────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 150ms !important;
    animation-duration: 150ms !important;
  }
  .btn-primary:hover, .post-card:hover { transform: none; }
}