/* Up Arrow — Guides hub. Single shared stylesheet. No external deps. */
:root{
  --ink:#0d1b2a;
  --body:#33415c;
  --muted:#5b6b86;
  --line:#e4e9f2;
  --bg:#ffffff;
  --panel:#f5f8fe;
  --panel-2:#eef3fc;
  --brand:#1452ff;
  --brand-ink:#0b3bcc;
  --accent:#13b06a;
  --accent-ink:#0b8a51;
  --wrap:1120px;
  --read:720px;
  --radius:14px;
  --shadow:0 1px 2px rgba(13,27,42,.06),0 8px 30px rgba(13,27,42,.06);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--body);
  background:var(--bg);
  font-size:18px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto}
a{color:var(--brand-ink);text-underline-offset:2px}
a:hover{color:var(--brand)}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}

/* Header */
.site-head{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.9);backdrop-filter:saturate(1.2) blur(8px);border-bottom:1px solid var(--line)}
.site-head .bar{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--ink);text-decoration:none;font-size:19px;letter-spacing:-.02em}
.brand .mark{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--brand);color:#fff;font-size:17px;line-height:1}
.brand .mark svg{width:16px;height:16px;display:block}
.brand .logo{height:28px;width:auto;display:block}
.site-foot .brand .logo{height:26px}
.nav{display:flex;align-items:center;gap:22px}
.nav a.navlink{color:var(--ink);text-decoration:none;font-weight:600;font-size:15.5px}
.nav a.navlink:hover{color:var(--brand)}
@media(max-width:640px){.nav a.navlink{display:none}}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:9px;font-weight:700;text-decoration:none;border-radius:10px;padding:12px 20px;font-size:16px;line-height:1;transition:transform .05s ease,box-shadow .15s ease,background .15s ease;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(20,82,255,.28)}
.btn-primary:hover{background:var(--brand-ink);color:#fff}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(19,176,106,.28)}
.btn-accent:hover{background:var(--accent-ink);color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-lg{padding:16px 28px;font-size:17px}

/* Hero */
.hero{background:linear-gradient(180deg,var(--panel),#fff);border-bottom:1px solid var(--line)}
.hero .wrap{padding-top:58px;padding-bottom:58px}
.eyebrow{display:inline-block;font-weight:700;font-size:13px;letter-spacing:.09em;text-transform:uppercase;color:var(--brand-ink);background:var(--panel-2);border:1px solid #dbe6ff;padding:6px 12px;border-radius:999px;margin-bottom:18px}
h1{color:var(--ink);font-size:clamp(30px,5.2vw,46px);line-height:1.08;letter-spacing:-.025em;margin:.1em 0 .35em;font-weight:820}
.lede{font-size:clamp(18px,2.3vw,21px);color:var(--muted);max-width:40ch;margin:0 0 26px}
.hero-ctas{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.hero-note{font-size:14.5px;color:var(--muted);margin-top:14px}

/* Generic section */
section{padding:52px 0}
.section-tight{padding:34px 0}
h2{color:var(--ink);font-size:clamp(24px,3.4vw,32px);line-height:1.15;letter-spacing:-.02em;margin:0 0 .5em;font-weight:780}
h3{color:var(--ink);font-size:21px;line-height:1.25;margin:1.6em 0 .4em;font-weight:720}
p{margin:0 0 1.05em}
.sub{color:var(--muted);max-width:60ch}

/* Article layout */
.article{padding:44px 0 10px}
.article .wrap{max-width:var(--read)}
.breadcrumbs{font-size:14px;color:var(--muted);margin-bottom:18px}
.breadcrumbs a{color:var(--muted);text-decoration:none}
.breadcrumbs a:hover{color:var(--brand)}
.article-body{font-size:18.5px}
.article-body h2{margin-top:1.7em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.3em}
.article-body li{margin:.4em 0}
.article-body strong{color:var(--ink)}
.meta-row{display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;color:var(--muted);font-size:14.5px;margin-bottom:8px}
.pill{display:inline-block;background:var(--panel);border:1px solid var(--line);color:var(--muted);font-size:13px;font-weight:600;padding:4px 10px;border-radius:999px}

/* Callouts */
.callout{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:12px;padding:18px 20px;margin:1.6em 0}
.callout.accent{border-left-color:var(--accent)}
.callout h4{margin:0 0 .3em;color:var(--ink);font-size:17px}
.callout p:last-child{margin-bottom:0}

/* Proof / case studies */
.proof-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:1.4em 0}
.proof{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;box-shadow:var(--shadow)}
.proof .big{font-size:26px;font-weight:820;color:var(--ink);letter-spacing:-.02em;line-height:1.1}
.proof .cap{font-size:14.5px;color:var(--muted);margin-top:6px}

/* Cards (hub) */
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;text-decoration:none;box-shadow:var(--shadow);transition:transform .12s ease,box-shadow .15s ease,border-color .15s ease}
.card:hover{transform:translateY(-3px);border-color:#cdd9f3;box-shadow:0 10px 34px rgba(13,27,42,.12)}
.card .kicker{font-size:12.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--brand-ink)}
.card h3{margin:.4em 0 .3em;font-size:20px;color:var(--ink)}
.card p{color:var(--muted);font-size:15.5px;margin:0}
.card .go{margin-top:auto;padding-top:16px;color:var(--brand);font-weight:700;font-size:15px}

/* Steps / comparison table */
.table-wrap{overflow-x:auto;margin:1.4em 0}
table.cmp{width:100%;border-collapse:collapse;font-size:16px;min-width:520px}
table.cmp th,table.cmp td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top}
table.cmp th{color:var(--ink);font-weight:720;background:var(--panel)}
table.cmp td:first-child{font-weight:700;color:var(--ink)}

/* FAQ */
.faq details{border:1px solid var(--line);border-radius:12px;padding:4px 18px;margin:12px 0;background:#fff}
.faq summary{cursor:pointer;font-weight:700;color:var(--ink);padding:14px 0;font-size:17px;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--brand);font-weight:800}
.faq details[open] summary::after{content:"–"}
.faq details[open] summary{border-bottom:1px solid var(--line)}
.faq .ans{padding:12px 0 6px;color:var(--body)}

/* CTA band */
.cta{background:linear-gradient(135deg,#0d1b2a,#14325f);color:#fff;border-radius:18px;padding:40px 34px;text-align:center;margin:40px 0}
.cta h2{color:#fff}
.cta p{color:#c7d4ea;max-width:52ch;margin:0 auto 22px}
.cta .btn-accent{box-shadow:0 10px 30px rgba(19,176,106,.4)}

/* Footer */
.site-foot{border-top:1px solid var(--line);background:var(--panel);margin-top:30px}
.site-foot .wrap{padding:34px 20px;display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;align-items:center}
.site-foot .cols{display:flex;flex-wrap:wrap;gap:26px}
.site-foot a{color:var(--muted);text-decoration:none;font-size:15px}
.site-foot a:hover{color:var(--brand)}
.site-foot .fine{color:var(--muted);font-size:13.5px;width:100%;border-top:1px solid var(--line);padding-top:18px;margin-top:6px}
.skip{position:absolute;left:-999px}
.skip:focus{left:12px;top:10px;background:#fff;padding:8px 12px;border-radius:8px;z-index:50}