/* SayFocus blog — shared styles for the blog hub and article pages */
:root{
  --bg:#070B17; --bg-raise:#0A0F20; --blue:#3B82F6; --blue-bright:#60A5FA; --blue-deep:#2563EB;
  --amber:#FFB454; --green:#4ADE80;
  --ink:#F5F7FF; --muted:rgba(226,232,255,.72); --faint:rgba(226,232,255,.45);
  --border:rgba(148,163,214,.14); --card:rgba(148,163,214,.05);
  --fd:'Instrument Serif',Georgia,serif; --fb:'Inter',system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--fb);-webkit-font-smoothing:antialiased;font-size:17px;line-height:1.7}
::selection{background:var(--blue);color:#fff}
a{color:inherit;text-decoration:none}
img{max-width:100%}

/* nav */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  padding:16px 40px;background:rgba(7,11,23,.72);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(226,232,255,.06)}
.nav__logo{font-weight:800;font-size:19px;letter-spacing:.02em}
.nav__logo em{font-style:normal;color:var(--blue-bright)}
.nav__links{display:flex;gap:28px;align-items:center}
.nav__links a{font-size:14px;color:var(--muted);transition:color .2s}
.nav__links a:hover{color:var(--ink)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-family:var(--fb);font-weight:600;font-size:15px;
  padding:13px 24px;border-radius:11px;border:0;cursor:pointer;transition:transform .2s,box-shadow .2s,border-color .2s,color .2s}
.btn--primary{background:linear-gradient(180deg,#4B8DFF,var(--blue-deep));color:#fff;box-shadow:0 8px 24px rgba(37,99,235,.28)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 14px 38px rgba(37,99,235,.4)}
.btn--ghost{border:1px solid var(--border);color:var(--ink)}
.btn--ghost:hover{border-color:var(--blue);color:var(--blue-bright)}
.btn--nav{padding:9px 18px;font-size:14px;border-radius:9px}
@media(max-width:720px){.nav{padding:14px 20px}.nav__links a:not(.btn){display:none}}

/* ---------- blog hub ---------- */
.hub{max-width:1080px;margin:0 auto;padding:80px 40px 100px}
.hub__head{text-align:center;max-width:680px;margin:0 auto 64px}
.eyebrow{font-size:12.5px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--blue-bright);margin-bottom:16px;display:block}
.hub__head h1{font-family:var(--fd);font-weight:400;font-size:clamp(40px,6vw,72px);letter-spacing:-.02em;margin-bottom:18px}
.hub__head p{color:var(--muted);font-size:19px}
.hub__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.pcard{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);border-radius:18px;
  padding:28px 26px;transition:border-color .25s,transform .25s,background .25s;height:100%}
.pcard:hover{border-color:rgba(59,130,246,.42);transform:translateY(-4px);background:rgba(59,130,246,.05)}
.pcard__cat{font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--blue-bright);margin-bottom:14px}
.pcard h2{font-family:var(--fd);font-weight:400;font-size:25px;line-height:1.15;margin-bottom:12px;letter-spacing:-.01em}
.pcard p{color:var(--muted);font-size:15px;flex:1}
.pcard__more{margin-top:18px;font-size:14px;font-weight:600;color:var(--blue-bright)}
@media(max-width:900px){.hub__grid{grid-template-columns:repeat(2,1fr)}.hub{padding:64px 24px 80px}}
@media(max-width:600px){.hub__grid{grid-template-columns:1fr}}

/* ---------- article ---------- */
.article{max-width:760px;margin:0 auto;padding:56px 40px 40px}
.crumbs{font-size:13.5px;color:var(--faint);margin-bottom:26px}
.crumbs a{color:var(--muted)}.crumbs a:hover{color:var(--ink)}
.article__cat{font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--blue-bright);margin-bottom:16px}
.article h1{font-family:var(--fd);font-weight:400;font-size:clamp(34px,5.2vw,54px);line-height:1.08;letter-spacing:-.02em;margin-bottom:20px}
.article__meta{display:flex;gap:14px;align-items:center;color:var(--faint);font-size:14px;margin-bottom:36px;flex-wrap:wrap}
.article__meta span{display:inline-flex;align-items:center;gap:14px}
.article__meta span::before{content:'·';color:var(--faint)}
.article__meta span:first-child::before{content:none}
.article__lead{font-size:21px;line-height:1.6;color:var(--ink);margin-bottom:14px}
.article__body{color:var(--muted)}
.article__body>p{margin:22px 0;font-size:17.5px}
.article__body h2{font-family:var(--fd);font-weight:400;color:var(--ink);font-size:clamp(26px,3.4vw,34px);letter-spacing:-.01em;margin:48px 0 8px;line-height:1.15}
.article__body h3{color:var(--ink);font-size:20px;font-weight:600;margin:32px 0 6px}
.article__body ul,.article__body ol{margin:18px 0 18px 4px;padding-left:22px}
.article__body li{margin-bottom:10px;font-size:17px}
.article__body li::marker{color:var(--blue-bright)}
.article__body a{color:var(--blue-bright);border-bottom:1px solid rgba(96,165,250,.35)}
.article__body a:hover{border-color:var(--blue-bright)}
.article__body strong{color:var(--ink);font-weight:600}
.article__body blockquote{border-left:2px solid var(--blue);padding:6px 0 6px 22px;margin:26px 0;color:var(--ink);font-family:var(--fd);font-size:22px;line-height:1.45}
.callout{background:var(--card);border:1px solid var(--border);border-left:3px solid var(--blue);border-radius:12px;padding:20px 24px;margin:30px 0}
.callout p{margin:0;font-size:16px;color:var(--muted)}
.callout strong{color:var(--ink)}

/* CTA card (mid + end of article) */
.cta-card{position:relative;overflow:hidden;border-radius:20px;padding:38px 34px;margin:48px 0;text-align:center;
  background:linear-gradient(140deg,rgba(37,99,235,.16),rgba(99,102,241,.07));border:1px solid rgba(59,130,246,.28)}
.cta-card h3{font-family:var(--fd);font-weight:400;font-size:clamp(24px,3.4vw,32px);color:var(--ink);margin-bottom:10px;line-height:1.15}
.cta-card p{color:var(--muted);font-size:16px;max-width:460px;margin:0 auto 24px}
.cta-card .btn{font-size:16px;padding:14px 30px}

/* FAQ */
.faq{margin-top:52px;border-top:1px solid var(--border)}
.faq h2{font-family:var(--fd);font-weight:400;color:var(--ink);font-size:30px;margin:34px 0 8px}
.faq details{border-bottom:1px solid var(--border)}
.faq summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;position:relative;font-weight:600;color:var(--ink);font-size:18px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:'+';position:absolute;right:4px;top:50%;transform:translateY(-50%);font-size:24px;color:var(--blue-bright);font-weight:400}
.faq details[open] summary::after{content:'–'}
.faq details p{color:var(--muted);font-size:16.5px;padding:0 0 22px}

/* related + footer */
.related{max-width:760px;margin:60px auto 0;padding:0 40px}
.related h3{font-size:14px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:18px}
.related__list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.related__list a{display:block;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px 20px;
  font-family:var(--fd);font-size:19px;color:var(--ink);line-height:1.25;transition:border-color .2s,transform .2s}
.related__list a:hover{border-color:rgba(59,130,246,.42);transform:translateY(-2px)}
@media(max-width:600px){.related__list{grid-template-columns:1fr}.article{padding:44px 22px 30px}.related{padding:0 22px}}

footer{border-top:1px solid rgba(226,232,255,.07);padding:44px 40px;margin-top:70px;font-size:13px;color:var(--faint)}
.footer__inner{max-width:1080px;margin:0 auto;display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:center}
.footer__brand{font-weight:800;font-size:16px;color:var(--ink)}
.footer__brand em{font-style:normal;color:var(--blue-bright)}
.footer__links{display:flex;gap:22px;flex-wrap:wrap}
.footer__links a:hover{color:var(--ink)}

/* back-to-top */
.fab-top{position:fixed;right:22px;bottom:22px;z-index:60;width:48px;height:48px;border-radius:50%;display:grid;place-items:center;
  border:1px solid var(--border);background:rgba(16,22,42,.86);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  box-shadow:0 10px 30px rgba(0,0,0,.4);cursor:pointer;opacity:0;pointer-events:none;transition:opacity .3s,transform .2s,background .2s}
.fab-top.on{opacity:1;pointer-events:auto}
.fab-top:hover{transform:translateY(-3px);background:var(--blue-deep)}
.fab-top svg{width:22px;height:22px}

@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}