/* Three Dots Brands — shared styles for About, Insights and article pages.
   The homepage inlines its own copy of these tokens for first-paint speed. */

:root {
  --bg:      #000;
  --bg-2:    #0b0c0f;
  --text:    #f5f4f1;
  --text-2:  rgba(245,244,241,.68);
  --text-3:  rgba(245,244,241,.52);
  --text-4:  rgba(245,244,241,.16);
  --hair:    rgba(255,255,255,.12);
  --hair-2:  rgba(255,255,255,.07);
  --fill:    rgba(255,255,255,.07);
  --accent:  #A8C5E8;
  --accent-hi: #c4d8f0;
  --ease:    cubic-bezier(.22,1,.36,1);
  --font-d:  'Poppins', system-ui, -apple-system, sans-serif;
  --font-b:  'Work Sans', system-ui, -apple-system, sans-serif;
  --gutter:  clamp(20px, 5vw, 48px);
  --nav-h:   56px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; background: var(--bg); scroll-padding-top: calc(var(--nav-h) + 16px); }
body {
  font: 400 17px/1.6 var(--font-b); color: var(--text); background: var(--bg);
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent; overflow-x: clip;
}
a { color: inherit; text-decoration: none; }
a, button { touch-action: manipulation; }
img, svg { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 6px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 12px; z-index: 100; background: var(--accent); color: #000; padding: 8px 14px; border-radius: 999px; }

.wrap   { max-width: 1120px; margin: 0 auto; padding: 0 var(--gutter); }
.narrow { max-width: 720px;  margin: 0 auto; padding: 0 var(--gutter); }

.eyebrow { font: 500 clamp(15px, 1.3vw, 17px) var(--font-d); color: var(--accent); margin-bottom: 14px; }
.accent  { color: var(--accent); }
.page-head h1, .prose h2, .prose h3, .cta-band h2, .post-list h2, .post-list h3, .related h2 { text-wrap: balance; }
.dek, .prose p, .prose li, .cta-band p, .post-list p { text-wrap: pretty; }
.tri { display: inline-flex; gap: 5px; }
.tri i { width: 7px; height: 7px; border-radius: 50%; background: var(--text-4); }
.tri i.on { background: var(--accent); }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 52px; padding: 0 30px; border: 0; border-radius: 999px;
  font: 500 16px var(--font-b); cursor: pointer; user-select: none; -webkit-user-select: none;
  transition: transform .12s ease-out, background-color .25s;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--accent); color: #000; }
.btn-ghost { background: var(--fill); color: var(--text); }
@media (hover: hover) { .btn-primary:hover { background: var(--accent-hi); } .btn-ghost:hover { background: rgba(255,255,255,.12); } }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  padding-top: env(safe-area-inset-top);
  background: rgba(0,0,0,.72);
  -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px);
}
.nav::after { content: ''; position: absolute; left: 0; right: 0; top: 100%; height: 18px; pointer-events: none; background: linear-gradient(rgba(0,0,0,.35), transparent); }
.nav-inner { max-width: 1200px; margin: 0 auto; height: var(--nav-h); padding: 0 var(--gutter); display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.logo { display: flex; align-items: center; gap: 10px; font: 500 15px var(--font-d); letter-spacing: -.01em; white-space: nowrap; }
.logo-dots { display: flex; gap: 4px; }
.logo-dots i { width: 6px; height: 6px; border-radius: 50%; background: var(--text); }
.nav-links { display: flex; align-items: center; gap: 28px; list-style: none; }
.nav-links a { font-size: 14px; color: var(--text-2); transition: color .2s; }
.nav-links a[aria-current="page"] { color: var(--text); }
@media (hover: hover) { .nav-links a:hover { color: var(--text); } }
.nav-links a.nav-cta { height: 34px; padding: 0 16px; display: inline-flex; align-items: center; border-radius: 999px; background: var(--accent); color: #000; font-weight: 500; }
@media (max-width: 760px) { .nav-links li:not(.keep) { display: none; } }

/* ---------- Breadcrumbs ---------- */
.crumbs { display: flex; flex-wrap: wrap; gap: 6px; font-size: 14px; color: var(--text-3); padding-top: clamp(40px, 6vw, 72px); }
.crumbs a { color: var(--text-2); }
@media (hover: hover) { .crumbs a:hover { color: var(--text); } }
.crumbs span[aria-hidden] { opacity: .6; }

/* ---------- Page / article head ---------- */
.page-head { padding: clamp(28px, 4vw, 48px) 0 clamp(40px, 6vw, 64px); }
.page-head h1 {
  font: 600 clamp(36px, 5.6vw, 64px)/1.06 var(--font-d); letter-spacing: -.034em;
  max-width: 15em;
}
.dek { font-size: clamp(19px, 1.8vw, 23px); line-height: 1.5; color: var(--text-2); margin-top: 20px; max-width: 34em; }
.meta { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: 28px; font-size: 14px; color: var(--text-3); }
.meta a { color: var(--text-2); border-bottom: 1px solid var(--hair); }

/* ---------- Prose ---------- */
.prose { padding-bottom: clamp(64px, 9vw, 112px); }
.prose > * + * { margin-top: 1.1em; }
.prose h2 { font: 600 clamp(26px, 3vw, 34px)/1.15 var(--font-d); letter-spacing: -.026em; margin-top: 2.2em; }
.prose h3 { font: 500 clamp(20px, 2vw, 23px)/1.3 var(--font-d); letter-spacing: -.016em; margin-top: 1.8em; }
.prose p, .prose li { color: var(--text-2); font-size: clamp(17px, 1.4vw, 19px); line-height: 1.7; }
.prose strong { color: var(--text); font-weight: 500; }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li + li { margin-top: .5em; }
.prose li::marker { color: var(--accent); }
.prose a { color: var(--accent); background: linear-gradient(currentColor, currentColor) 0 100% / 100% 1px no-repeat; }
.prose blockquote {
  margin: 2em 0; padding-left: 22px; border-left: 2px solid var(--accent);
  font: 500 clamp(21px, 2.2vw, 26px)/1.35 var(--font-d); letter-spacing: -.02em; color: var(--text);
}
.prose hr { border: 0; height: 1px; background: var(--hair); margin: 2.4em 0; }

/* Key takeaways — the summary block AI engines and skimmers read first */
.takeaways { margin: 0 0 2.4em; padding: 24px 0; border-top: 1px solid var(--hair); border-bottom: 1px solid var(--hair); }
.takeaways h2 { font: 500 15px var(--font-d); color: var(--accent); margin: 0 0 12px; letter-spacing: 0; }
.takeaways ul { list-style: none; padding: 0; }
.takeaways li { position: relative; padding-left: 20px; color: var(--text); font-size: 17px; }
.takeaways li::before { content: ''; position: absolute; left: 0; top: .62em; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* Simple comparison table */
.prose table { width: 100%; border-collapse: collapse; font-size: 15px; margin: 1.6em 0; }
.prose th, .prose td { text-align: left; padding: 12px 12px 12px 0; border-bottom: 1px solid var(--hair-2); vertical-align: top; color: var(--text-2); }
.prose th { color: var(--text); font: 500 14px var(--font-d); }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--hair); }
.faq details { border-bottom: 1px solid var(--hair); }
.faq summary {
  list-style: none; cursor: pointer; padding: 22px 44px 22px 0; position: relative;
  font: 500 clamp(18px, 1.7vw, 21px)/1.35 var(--font-d); letter-spacing: -.015em; color: var(--text);
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ''; position: absolute; right: 4px; top: 50%; width: 10px; height: 10px; margin-top: -7px;
  border-right: 1.5px solid var(--accent); border-bottom: 1.5px solid var(--accent);
  transform: rotate(45deg); transition: transform .4s var(--ease);
}
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: -2px; }
.faq details p { color: var(--text-2); padding: 0 0 22px; max-width: 40em; font-size: 17px; line-height: 1.65; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--bg-2); padding: clamp(80px, 11vw, 136px) 0; text-align: center; }
.cta-band h2 { font: 600 clamp(32px, 4.6vw, 56px)/1.08 var(--font-d); letter-spacing: -.032em; max-width: 14em; margin: 0 auto; }
.cta-band p { color: var(--text-2); font-size: clamp(17px, 1.6vw, 20px); margin: 18px auto 0; max-width: 32em; }
.cta-band .row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 34px; }

/* ---------- Article list (Insights index, related) ---------- */
.post-list { border-top: 1px solid var(--hair); list-style: none; }
.post-list li { border-bottom: 1px solid var(--hair); }
.post-list a { display: grid; grid-template-columns: 1fr auto; gap: 8px 32px; align-items: center; padding: 28px 0; }
.post-list .cat { font: 500 13px var(--font-b); color: var(--accent); grid-column: 1; }
.post-list h2, .post-list h3 { font: 500 clamp(21px, 2.4vw, 28px)/1.25 var(--font-d); letter-spacing: -.02em; grid-column: 1; }
.post-list p { color: var(--text-2); font-size: 16px; grid-column: 1; max-width: 40em; }
.post-list .go {
  grid-column: 2; grid-row: 1 / span 3; width: 40px; height: 40px; border-radius: 50%;
  background: var(--fill); display: grid; place-items: center; transition: background-color .3s, transform .4s var(--ease);
}
.post-list .go svg { width: 16px; height: 16px; }
@media (hover: hover) { .post-list a:hover .go { background: var(--accent); color: #000; transform: translateX(4px); } }
.post-list a:active .go { transform: scale(.92); }
.related { padding: clamp(64px, 9vw, 104px) 0; }
.related h2 { font: 600 clamp(24px, 2.8vw, 32px) var(--font-d); letter-spacing: -.025em; margin-bottom: 24px; }

/* ---------- Footer ---------- */
.footer { padding: 48px 0 calc(40px + env(safe-area-inset-bottom)); border-top: 1px solid var(--hair-2); }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 32px; }
.footer h4 { font: 500 13px var(--font-d); color: var(--text); margin-bottom: 12px; }
.footer ul { list-style: none; }
.footer li + li { margin-top: 8px; }
.footer a, .footer p { font-size: 14px; color: var(--text-3); transition: color .2s; }
@media (hover: hover) { .footer a:hover { color: var(--text); } }
.footer .fine { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--hair-2); font-size: 13px; color: var(--text-3); }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-grid > :first-child { grid-column: 1 / -1; } }

/* ---------- Reveal ---------- */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .9s var(--ease), transform 1.1s var(--ease); transition-delay: calc(var(--d, 0) * 90ms); }
.js .reveal.in { opacity: 1; transform: none; }

@media (max-width: 600px) {
  .post-list a { grid-template-columns: 1fr; }
  .post-list .go { display: none; }
  .cta-band .row .btn { width: 100%; max-width: 340px; }
}
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; transition: none; }
  * { scroll-behavior: auto !important; }
}
@media (prefers-contrast: more) {
  :root { --text-2: rgba(245,244,241,.86); --text-3: rgba(245,244,241,.74); --hair: rgba(255,255,255,.3); --hair-2: rgba(255,255,255,.2); --fill: rgba(255,255,255,.16); }
  .nav { background: #000; -webkit-backdrop-filter: none; backdrop-filter: none; }
}
@media (prefers-reduced-transparency: reduce) { .nav { background: #000; -webkit-backdrop-filter: none; backdrop-filter: none; } }