/* ============================================================
   Wonn blog — shared styles
   Tokens mirror index.html so the blog reads as the same site.
   ============================================================ */

:root{
  --ink:#0a0a0b;
  --ink-2:#4a4f57;
  --mute:#8b9099;
  --line:#e8eaee;
  --paper:#ffffff;
  --slate:#f5f7fa;
  --navy:#0c1420;
  --navy-2:#111c2c;
  --sky:#0EA5E9;
  --sky-deep:#0284C7;
  --sky-bright:#38BDF8;
  --sky-tint:#E0F2FE;
  --mint:#86E6BE;
  --r-lg:24px; --r-md:16px; --r-sm:12px;
  --shadow-lg:0 40px 90px -40px rgba(12,20,32,.35);
  --shadow-md:0 24px 60px -30px rgba(12,20,32,.22);
  --ease:cubic-bezier(.22,1,.36,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'Switzer',-apple-system,system-ui,sans-serif;
  color:var(--ink); background:var(--paper);
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none}
h1,h2,h3{font-weight:800;letter-spacing:-.035em;line-height:1.05}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--sky);outline-offset:3px;border-radius:6px}

.wrap{max-width:1720px;margin:0 auto;padding:0 52px}
@media(max-width:900px){.wrap{padding:0 32px}}
@media(max-width:760px){.wrap{padding:0 22px}}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;gap:10px;background:var(--ink);color:#fff;
  font-size:15px;font-weight:600;padding:11px 13px 11px 20px;border-radius:99px;
  transition:background .25s ease,box-shadow .3s ease;
}
.btn .arw{width:22px;height:22px;border-radius:99px;background:rgba(255,255,255,.16);
  display:grid;place-items:center;flex:none;transition:transform .35s var(--ease)}
.btn:hover .arw{transform:translate(2px,-2px)}
.btn.sky{background:var(--sky)}
.btn.sky:hover{background:var(--sky-deep);box-shadow:0 16px 30px -14px rgba(14,165,233,.6)}

/* ============ nav (dark, matches landing) ============ */
/* scoped to #nav — a bare `nav{}` selector also catches the breadcrumb <nav>
   and pins it to the top of the viewport behind the header */
#nav{position:fixed;inset:0 0 auto;z-index:60;background:var(--ink);transition:box-shadow .3s ease}
#nav.scrolled{box-shadow:0 14px 40px -22px rgba(10,10,11,.7)}
.nav-in{max-width:1720px;margin:0 auto;padding:0 52px;height:80px;
  display:flex;align-items:center;justify-content:space-between;gap:20px}
@media(max-width:900px){.nav-in{padding:0 32px}}
@media(max-width:760px){.nav-in{padding:0 22px;height:68px}}
.nav-in .brand img{height:28px;width:auto}
.nav-links{display:flex;gap:38px;font-size:16px;color:rgba(255,255,255,.68);font-weight:500}
.nav-links a{position:relative;transition:color .2s ease}
.nav-links a:hover{color:#fff}
.nav-links a::after{content:'';position:absolute;left:0;right:100%;bottom:-6px;height:1.5px;
  background:var(--sky);transition:right .35s var(--ease)}
.nav-links a:hover::after{right:0}
@media(max-width:1000px){.nav-links{display:none}}
#nav .btn{background:#fff;color:var(--ink)}
#nav .btn:hover{background:#e9ebef;box-shadow:0 14px 28px -14px rgba(255,255,255,.35)}
#nav .btn .arw{background:rgba(10,10,11,.12)}
.nav-right{display:flex;align-items:center;gap:20px}

/* ============ blog index ============ */
.b-hero{padding:150px 0 56px;border-bottom:1px solid var(--line)}
@media(max-width:760px){.b-hero{padding:104px 0 40px}}
.b-eyebrow{font-size:13.5px;font-weight:600;letter-spacing:.17em;text-transform:uppercase;color:var(--mute)}
.b-hero h1{font-size:clamp(2.1rem,5vw,4.1rem);margin-top:22px;letter-spacing:-.04em}
.b-hero .lede{margin-top:24px;font-size:clamp(17px,1.5vw,20px);line-height:1.6;
  color:var(--ink-2);max-width:62ch}

/* auto-fill (not auto-fit) so a single post keeps card proportions
   instead of stretching the full container width */
.b-list{padding:56px 0 30px;max-width:1180px;display:grid;gap:22px;
  grid-template-columns:repeat(auto-fill,minmax(330px,1fr))}
@media(max-width:760px){.b-list{padding:38px 0 20px}}
.b-card{
  display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 30px 26px;background:var(--paper);
  transition:border-color .25s ease,box-shadow .3s ease,transform .3s var(--ease);
}
.b-card:hover{border-color:#d6dae2;box-shadow:var(--shadow-md);transform:translateY(-3px)}
.b-card .tag{font-size:11.5px;font-weight:700;letter-spacing:.11em;text-transform:uppercase;
  color:var(--sky-deep)}
.b-card h2{margin-top:14px;font-size:24px;line-height:1.18;letter-spacing:-.03em}
.b-card p{margin-top:14px;font-size:15.5px;line-height:1.62;color:var(--ink-2)}
.b-card .meta{margin-top:auto;padding-top:22px;font-size:13.5px;color:var(--mute);
  display:flex;gap:16px;align-items:center;flex-wrap:wrap}
.b-card .go{margin-top:18px;display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:650;color:var(--sky-deep)}
.b-card .go svg{transition:transform .3s var(--ease)}
.b-card:hover .go svg{transform:translateX(3px)}

.b-empty{padding:40px 0 90px;color:var(--mute);font-size:16px}

/* ============ article ============ */
.a-head{padding:142px 0 0}
@media(max-width:760px){.a-head{padding:98px 0 0}}
.crumb{font-size:14px;color:var(--mute);display:flex;gap:9px;align-items:center;flex-wrap:wrap}
.crumb a{transition:color .2s ease}
.crumb a:hover{color:var(--ink)}
.a-head h1{margin-top:22px;font-size:clamp(2rem,4.4vw,3.75rem);letter-spacing:-.04em;
  max-width:19ch;text-wrap:balance}
.a-head .stand{margin-top:24px;font-size:clamp(17px,1.5vw,20.5px);line-height:1.6;
  color:var(--ink-2);max-width:60ch}
.a-meta{margin-top:30px;padding-bottom:34px;border-bottom:1px solid var(--line);
  display:flex;gap:20px;align-items:center;flex-wrap:wrap;font-size:14px;color:var(--mute)}
.a-meta .dot{width:3px;height:3px;border-radius:99px;background:var(--line);flex:none}

.a-body{padding:44px 0 20px;max-width:none}
.a-body .col{max-width:72ch}
.a-body p{font-size:18px;line-height:1.75;color:#1f242b;margin-bottom:1.15em}
.a-body h2{font-size:clamp(1.5rem,2.4vw,2rem);margin:2.2em 0 .6em;letter-spacing:-.03em;
  text-wrap:balance}
.a-body h3{font-size:clamp(1.15rem,1.7vw,1.35rem);margin:1.9em 0 .5em;letter-spacing:-.02em;
  font-weight:750}
.a-body ul,.a-body ol{margin:0 0 1.5em 1.2em}
.a-body li{font-size:18px;line-height:1.72;color:#1f242b;margin-bottom:.5em;padding-left:.3em}
.a-body strong{font-weight:700;color:var(--ink)}
.a-body a{color:var(--sky-deep);border-bottom:1px solid rgba(2,132,199,.35);
  transition:border-color .2s ease}
.a-body a:hover{border-bottom-color:var(--sky-deep)}
.a-body em{font-style:italic}

.formula{
  background:var(--navy);color:#fff;border-radius:var(--r-md);padding:30px 32px;margin:2em 0;
}
.formula .lbl{font-size:11.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;
  color:var(--sky-bright)}
/* colour stated explicitly: `.a-body p` matches this element directly and
   would otherwise beat the white inherited from .formula */
.formula .eq{margin-top:16px;font-size:clamp(17px,2vw,23px);line-height:1.5;font-weight:600;
  letter-spacing:-.02em;color:#fff}
.formula .note{margin-top:16px;font-size:15px;line-height:1.6;color:rgba(255,255,255,.62)}

.callout{
  border-left:3px solid var(--sky);background:var(--slate);border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:24px 28px;margin:2em 0;
}
.callout h4{font-size:16px;font-weight:750;letter-spacing:-.02em;margin-bottom:9px}
.callout p{font-size:16px;line-height:1.68;color:var(--ink-2);margin-bottom:.7em}
.callout p:last-child{margin-bottom:0}

.tbl-wrap{overflow-x:auto;margin:2em 0;border:1px solid var(--line);border-radius:var(--r-md)}
table{width:100%;border-collapse:collapse;font-size:16px;min-width:480px}
caption{text-align:left;font-size:14px;color:var(--mute);padding:16px 20px 0;caption-side:top}
th,td{padding:13px 20px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
th{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--mute);
  font-weight:700;background:var(--slate);white-space:nowrap}
td.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
th.num{text-align:right}
tbody tr:last-child td{border-bottom:none}
tr.total td{font-weight:750;background:var(--slate)}

/* two classes so it outranks `.a-body p` (which is 0,1,1) */
.a-body .figure-note{font-size:14.5px;color:var(--mute);line-height:1.6;margin:-1em 0 2em}

/* end-of-post CTA */
.a-cta{margin:64px 0 0;background:var(--navy);border-radius:var(--r-lg);
  padding:46px 48px;color:#fff;overflow:hidden;position:relative}
@media(max-width:760px){.a-cta{padding:34px 26px}}
.a-cta h3{font-size:clamp(1.4rem,2.6vw,2rem);letter-spacing:-.03em;max-width:20ch}
.a-cta p{margin-top:16px;font-size:16.5px;line-height:1.65;color:rgba(255,255,255,.7);max-width:52ch}
.a-cta .btn{margin-top:26px;background:var(--sky)}
.a-cta .btn:hover{background:var(--sky-bright)}

.a-more{padding:64px 0 10px;border-top:1px solid var(--line);margin-top:64px}
.a-more h3{font-size:20px;letter-spacing:-.02em;margin-bottom:24px}

/* ============ footer ============ */
footer{background:var(--ink);color:#fff;margin-top:80px}
.ft-in{max-width:1720px;margin:0 auto;padding:72px 52px 40px}
@media(max-width:900px){.ft-in{padding:56px 32px 34px}}
@media(max-width:760px){.ft-in{padding:48px 22px 30px}}
.ft-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
@media(max-width:900px){.ft-top{grid-template-columns:1fr 1fr;gap:34px}}
@media(max-width:560px){.ft-top{grid-template-columns:1fr;gap:30px}}
.ft-brand img{height:28px;width:auto}
.ft-brand p{margin-top:18px;font-size:15px;line-height:1.62;color:rgba(255,255,255,.75);max-width:32ch}
.ft-brand a{display:inline-block;margin-top:16px;font-size:15px;color:rgba(255,255,255,.78);
  transition:color .2s ease}
.ft-brand a:hover{color:#fff}
.ft-col h4{font-size:16px;font-weight:700;letter-spacing:-.02em}
.ft-col ul{list-style:none;margin-top:16px;display:flex;flex-direction:column;gap:11px}
.ft-col a{font-size:14.5px;color:rgba(255,255,255,.5);transition:color .2s ease}
.ft-col a:hover{color:#fff}
.ft-copy{margin-top:56px;padding-top:26px;border-top:1px solid rgba(255,255,255,.1);
  font-size:12.5px;color:rgba(255,255,255,.35)}

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