/* Just AuthentiKate: shared site chrome (field, header, footer, badges).
   Kate Chat "Green + Poppy" system: docs/Kate-Chat-Social-Brand-Identity.md
   Used by index.html and everything under /blog/. Page-specific layout
   (hero, article prose, post cards, etc.) stays inline per page. */

:root{
  --field-1:#1E4429; --field-2:#2C502C; --field-3:#376B45; --field-4:#4A9065; --field-5:#5DAB77; --field-6:#69B583;
  --ink:#F2F2E8; --ink-bright:#FAFAF4; --navy:#18344A; --navy-soft:#4A6070;
  --verified:#36AC71;
  --poppy-yellow:#E8E68A; --poppy-pink:#F1AED4; --poppy-orange:#EB6232;
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--field-1);
  overflow-x:hidden;
}
a{color:inherit}
img,svg{display:block;max-width:100%}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}

/* ---- the continuous field ---- */
.field{
  position:relative;
  background:linear-gradient(180deg,
    var(--field-1) 0%, var(--field-2) 14%, var(--field-3) 34%,
    var(--field-4) 56%, var(--field-5) 80%, var(--field-6) 100%);
  overflow:hidden;
}
.blob{position:absolute;border-radius:50%;filter:blur(70px);pointer-events:none;z-index:0}
.cf{position:absolute;pointer-events:none;z-index:1}
.cf.dot{border-radius:50%}
.cf.ring{border-radius:50%;background:transparent}
.cf.dia{border-radius:4px}

.wrap{max-width:1160px;margin:0 auto;padding:0 24px;position:relative;z-index:2}

/* ---- header ---- */
header.wrap{display:flex;align-items:center;justify-content:space-between;padding-top:28px;padding-bottom:8px}
.wordmark{height:26px;width:auto}
.hnav{display:flex;align-items:center;gap:22px;font-size:14px;font-weight:600}
.hnav a{text-decoration:none;color:rgba(242,242,232,0.82);transition:color .15s}
.hnav a:hover{color:var(--ink)}
.hnav .ig{display:flex;align-items:center;gap:8px;background:rgba(242,242,232,0.12);padding:8px 14px;border-radius:999px}
.hnav .ig svg{width:16px;height:16px}

/* ---- download badges (Apple / Google official artwork) ---- */
.badges{display:flex;gap:14px;flex-wrap:wrap}
.badges a{display:block;line-height:0;transition:transform .15s}
.badges a:hover{transform:translateY(-2px)}
.badge-apple{height:48px;width:auto;border-radius:9px}
.badge-google{height:48px;width:auto}

/* ---- footer ---- */
footer{padding:0 0 64px}
.foot-card{
  background:var(--ink);color:var(--navy);border-radius:28px;padding:36px 32px;
  display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
  box-shadow:0 24px 48px rgba(6,26,16,.24);
}
.foot-card .fw{height:22px}
.foot-links{display:flex;flex-wrap:wrap;gap:20px;font-size:14px;font-weight:600}
.foot-links a{text-decoration:none;color:var(--navy-soft)}
.foot-links a:hover{color:var(--navy)}
.foot-bottom{margin-top:20px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;font-size:12.5px;font-weight:600;color:var(--navy-soft)}

@media (max-width:860px){
  .hnav .label{display:none}
}

/* ---- blog article (shared by every /blog/posts/*.html page) ---- */
.back-link{display:inline-flex;align-items:center;gap:6px;margin:36px 0 0;font-size:14px;font-weight:700;color:rgba(242,242,232,.82);text-decoration:none}
.back-link:hover{color:var(--ink)}
.article-head{padding:8px 0 28px}
.article-head .date{display:block;margin:0 0 12px;font-size:12.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--poppy-pink)}
.article-head h1{margin:0;font-size:clamp(30px,4.6vw,46px);font-weight:800;letter-spacing:-0.02em;line-height:1.08}

.article-card{
  background:var(--ink);color:var(--navy);border-radius:28px;
  padding:clamp(28px,5vw,56px);margin-bottom:64px;
  box-shadow:0 24px 48px rgba(6,26,16,.24);
}
.article-card .byline{margin:0 0 30px;font-size:14px;font-weight:600;color:var(--navy-soft)}
.article-card p{margin:0 0 20px;font-size:17px;font-weight:450;line-height:1.7;max-width:70ch}
.article-card p:last-child{margin-bottom:0}
.article-card h2{margin:36px 0 14px;font-size:22px;font-weight:800;letter-spacing:-0.01em}
.article-card ul{margin:0 0 20px;padding-left:22px;max-width:70ch}
.article-card li{font-size:17px;font-weight:450;line-height:1.7;margin-bottom:8px}
.article-card strong{font-weight:700}
.article-card .signoff{margin-top:32px;font-size:17px;font-weight:600;color:var(--field-2)}