:root{
  --esa-bg:#f4f7fa;
  --esa-surface:#fff;
  --esa-text:#14202a;
  --esa-muted:#61707e;
  --esa-line:#dce4ea;
  --esa-dark:#0c1117;
  --esa-accent:#08a6d8;
  --esa-accent2:#1376df;
  --esa-max:980px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--esa-bg);
  color:var(--esa-text);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
a{color:#086d91}
.esa-content-wrap{width:min(var(--esa-max),calc(100% - 40px));margin:44px auto 72px}
.esa-content-hero{
  background:linear-gradient(135deg,#0b1118,#132431);
  color:#fff;border-radius:24px;padding:34px;margin-bottom:26px;overflow:hidden;
  box-shadow:0 18px 50px rgba(8,19,30,.12)
}
.esa-kicker{text-transform:uppercase;letter-spacing:.12em;font-weight:800;font-size:12px;color:#67d9f7;margin:0 0 10px}
.esa-content-hero h1{font-size:clamp(34px,5vw,56px);line-height:1.04;letter-spacing:-.035em;margin:0 0 14px;max-width:850px}
.esa-content-hero p{font-size:17px;line-height:1.65;color:#d7e1e8;max-width:760px;margin:0}
.esa-byline{margin-top:18px;color:#aebcc7;font-size:13px}
.esa-cover{width:100%;display:block;border-radius:18px;margin:0 0 28px;border:1px solid #d8e1e7}
.esa-article,.esa-card{
  background:#fff;border:1px solid var(--esa-line);border-radius:20px;padding:32px;
  box-shadow:0 12px 34px rgba(18,31,43,.05)
}
.esa-article h2{font-size:27px;letter-spacing:-.02em;margin:36px 0 11px}
.esa-article h3{font-size:20px;margin:26px 0 8px}
.esa-article p,.esa-article li{font-size:16px;line-height:1.75}
.esa-article p{margin:12px 0}
.esa-article ul,.esa-article ol{padding-left:23px}
.esa-callout{
  margin:24px 0;padding:17px 19px;border-left:4px solid var(--esa-accent);
  background:#eff8fb;border-radius:8px;color:#1d3845
}
.esa-warning{
  margin:24px 0;padding:17px 19px;border-left:4px solid #d18a22;
  background:#fff8eb;border-radius:8px;color:#473619
}
.esa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.esa-card h2,.esa-card h3{margin-top:0}
.esa-card p{color:var(--esa-muted);line-height:1.65}
.esa-card a{font-weight:750;text-decoration:none}
.esa-card a:hover{text-decoration:underline}
.esa-thumb{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:13px;margin-bottom:16px;border:1px solid var(--esa-line)}
.esa-related{margin-top:28px;background:#fff;border:1px solid var(--esa-line);border-radius:18px;padding:24px}
.esa-related h2{font-size:21px;margin:0 0 12px}
.esa-related-links{display:flex;gap:12px;flex-wrap:wrap}
.esa-related-links a{
  display:inline-block;padding:9px 12px;border-radius:9px;background:#eef4f7;text-decoration:none;font-weight:700
}
.esa-ad-label{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:#7a8792;text-align:center;margin:26px 0 8px}
.esa-index-intro{font-size:17px;line-height:1.7;color:var(--esa-muted);margin:0 0 26px}
.esa-legal h2{margin-top:34px}
.esa-legal h3{margin-top:24px}
.esa-meta{color:var(--esa-muted);font-size:13px}
@media(max-width:720px){
  .esa-content-wrap{width:min(100% - 24px,var(--esa-max));margin-top:28px}
  .esa-content-hero{padding:25px;border-radius:18px}
  .esa-article,.esa-card{padding:22px}
  .esa-grid{grid-template-columns:1fr}
}


/* Blog */
.esa-blog-toolbar{
  display:flex;gap:12px;flex-wrap:wrap;align-items:center;
  margin:0 0 24px;padding:16px 18px;background:#fff;border:1px solid var(--esa-line);
  border-radius:16px
}
.esa-blog-toolbar label{font-size:13px;font-weight:750;color:var(--esa-muted)}
.esa-blog-toolbar select{
  border:1px solid #ced8df;border-radius:9px;padding:9px 11px;background:#fff;color:var(--esa-text)
}
.esa-blog-list{display:grid;gap:20px}
.esa-blog-card{
  display:grid;grid-template-columns:260px minmax(0,1fr);gap:22px;
  background:#fff;border:1px solid var(--esa-line);border-radius:19px;padding:18px;
  box-shadow:0 10px 30px rgba(18,31,43,.045)
}
.esa-blog-card img{
  width:100%;height:165px;object-fit:cover;border-radius:13px;border:1px solid var(--esa-line)
}
.esa-blog-card h2{margin:5px 0 9px;font-size:24px;letter-spacing:-.02em}
.esa-blog-card p{margin:0 0 12px;color:var(--esa-muted);line-height:1.65}
.esa-blog-card .esa-meta{margin-bottom:6px}
.esa-blog-card a{font-weight:800;text-decoration:none}
.esa-blog-card a:hover{text-decoration:underline}

/* Blog article with persistent advertising rail.
   The right column runs alongside title, cover image, and article body. */
.esa-content-wrap.esa-blog-wide{
  width:min(1240px,calc(100% - 40px));
  max-width:none;
}
.esa-blog-page-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:28px;
  align-items:start;
}
.esa-blog-main-column{min-width:0}
.esa-blog-main-column .esa-content-hero{margin-bottom:20px}
.esa-blog-main-column .esa-cover{
  margin:0 0 28px;
  width:100%;
  height:auto;
  object-fit:cover;
}
.esa-blog-ad-rail{
  position:sticky;
  top:20px;
  display:grid;
  gap:22px;
  align-content:start;
}
.esa-sidebar-ad{
  min-height:250px;
  background:#fff;
  border:1px solid var(--esa-line);
  border-radius:18px;
  padding:12px;
  display:flex;
  flex-direction:column;
  align-items:stretch;
  justify-content:flex-start;
  overflow:hidden;
}
.esa-sidebar-ad.tall{min-height:420px}
.esa-sidebar-ad-label{
  color:#818d96;
  text-transform:uppercase;
  letter-spacing:.09em;
  font-size:10px;
  text-align:center;
  margin:0 0 8px;
}
.esa-sidebar-ad-placeholder{
  flex:1;
  display:grid;
  place-items:center;
  border:1px dashed #d4dde3;
  border-radius:12px;
  background:#fafcfd;
  color:#9aa5ad;
  font-size:12px;
  text-align:center;
  padding:18px;
}
.esa-blog-main-column .esa-article{
  width:100%;
  max-width:none;
}
.esa-blog-main-column .esa-article > p,
.esa-blog-main-column .esa-article > h2,
.esa-blog-main-column .esa-article > h3,
.esa-blog-main-column .esa-article > ul,
.esa-blog-main-column .esa-article > ol,
.esa-blog-main-column .esa-article > .esa-callout,
.esa-blog-main-column .esa-article > .esa-warning{
  max-width:none;
  margin-left:0;
  margin-right:0;
}
.esa-blog-main-column .esa-related{
  max-width:none;
  margin-left:0;
  margin-right:0;
}
.esa-blog-lead{
  font-size:19px!important;
  line-height:1.72!important;
  color:#384b58;
}
.esa-article-tags{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin:18px 0 0;
  max-width:none;
}
.esa-article-tag{
  display:inline-block;
  background:#edf5f8;
  color:#315160;
  border-radius:999px;
  padding:7px 10px;
  font-size:12px;
  font-weight:750;
}

@media(max-width:980px){
  .esa-content-wrap.esa-blog-wide{width:min(100% - 28px,960px)}
  .esa-blog-page-grid{
    grid-template-columns:minmax(0,1fr) 250px;
    gap:20px;
  }
}
@media(max-width:780px){
  .esa-blog-page-grid{grid-template-columns:1fr}
  .esa-blog-ad-rail{
    position:static;
    grid-template-columns:repeat(2,minmax(0,1fr));
    order:2;
  }
  .esa-sidebar-ad,
  .esa-sidebar-ad.tall{min-height:220px}
}
  .esa-blog-ad-rail{
    grid-template-columns:repeat(2,minmax(0,1fr));
    order:2;
  }
  .esa-sidebar-ad,
  .esa-sidebar-ad.tall{min-height:220px}
}
@media(max-width:720px){
  .esa-blog-card{grid-template-columns:1fr}
  .esa-blog-card img{height:auto;aspect-ratio:16/9}
  .esa-content-wrap.esa-blog-wide{width:min(100% - 20px,720px);margin-top:20px}
  .esa-blog-main-column .esa-content-hero{padding:24px;margin-bottom:14px}
  .esa-blog-main-column .esa-cover{margin-bottom:18px}
  .esa-blog-ad-rail{grid-template-columns:1fr}
  .esa-sidebar-ad,.esa-sidebar-ad.tall{min-height:180px}
  .esa-blog-main-column .esa-article{padding:22px}
}

/* Final article/ad layout override */
.esa-blog-page-grid{display:grid!important;grid-template-columns:minmax(0,1fr) 300px!important;gap:28px!important;align-items:start!important}
.esa-blog-ad-rail{display:block!important;position:sticky!important;top:88px!important;min-width:0!important}
.esa-blog-ad-rail .esa-sidebar-ad{width:100%!important;min-height:520px!important}
.esa-inline-ad{margin:34px 0;padding:14px;background:#fff;border:1px solid var(--esa-line);border-radius:16px;min-height:130px;overflow:hidden}
.esa-inline-ad-placeholder{min-height:100px;display:grid;place-items:center;border:1px dashed #d4dde3;border-radius:11px;color:#99a4ad;font-size:12px;background:#fafcfd}
@media(max-width:900px){
 .esa-blog-page-grid{grid-template-columns:minmax(0,1fr) 220px!important;gap:18px!important}
 .esa-blog-ad-rail .esa-sidebar-ad{min-height:420px!important}
}
@media(max-width:760px){
 .esa-blog-page-grid{display:block!important}
 .esa-blog-ad-rail{position:static!important;margin:20px 0!important}
 .esa-blog-ad-rail .esa-sidebar-ad{min-height:220px!important}
 .esa-inline-ad{min-height:110px}
}

/* Video tutorial library */
.esa-video-library-note,.esa-sustainability-note{
  background:#fff;border:1px solid var(--esa-line);border-radius:18px;padding:24px;margin-bottom:22px
}
.esa-video-library-note h2,.esa-sustainability-note h2{margin:0 0 9px;font-size:22px}
.esa-video-library-note p,.esa-sustainability-note p{margin:0;color:var(--esa-muted);line-height:1.7}
.esa-sustainability-note{background:#f4fbfd;border-color:#cce9f1}
.esa-video-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.esa-video-card{background:#fff;border:1px solid var(--esa-line);border-radius:18px;overflow:hidden;box-shadow:0 9px 26px rgba(18,31,43,.045)}
.esa-video-thumb{position:relative;display:block;background:#0d1720;aspect-ratio:16/9;overflow:hidden}
.esa-video-thumb img{width:100%;height:100%;display:block;object-fit:cover;transition:transform .22s ease}
.esa-video-thumb:hover img{transform:scale(1.02)}
.esa-play-badge{
  position:absolute;left:18px;bottom:16px;width:46px;height:46px;border-radius:50%;
  display:grid;place-items:center;background:rgba(7,18,27,.9);color:#fff;font-size:18px;border:1px solid rgba(255,255,255,.3)
}
.esa-video-copy{padding:20px}
.esa-video-copy h2{font-size:21px;line-height:1.24;margin:6px 0 9px}
.esa-video-copy p{color:var(--esa-muted);line-height:1.6;margin:0 0 13px}
.esa-video-link{font-weight:800;text-decoration:none}
@media(max-width:900px){.esa-video-grid{grid-template-columns:1fr}}