.guide-hero{
  position:relative;
  overflow-x:clip;
  border-bottom:1px solid var(--color-line);
  background:
    radial-gradient(circle at top right,var(--color-accent-soft),transparent 42%),
    var(--color-canvas);
}
.guide-hero::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(var(--color-line) 1px,transparent 1px),
    linear-gradient(90deg,var(--color-line) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.28;
}
.guide-hero .reading{
  position:relative;
  z-index:1;
}
.guide-hero h1{
  max-width:760px;
  margin-top:16px;
}
.guide-hero .lead{
  max-width:720px;
}
.guide-hero-actions{
  margin-top:28px;
}
.guide-facts{
  display:flex;
  flex-wrap:wrap;
  gap:9px;
  margin-top:24px;
}
.guide-layout{
  padding-top:22px;
  padding-bottom:var(--section-space);
}
.guide-layout>.toc-tabs{
  margin-inline:auto;
}
.guide-document{
  position:relative;
  width:100%;
  max-width:920px;
  margin-inline:auto;
  padding-top:18px;
}
.guide-document>.callout{
  margin-bottom:54px;
}
.guide-step{
  position:relative;
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:22px;
  padding-bottom:clamp(58px,8vw,96px);
}
.guide-step:last-child{
  padding-bottom:0;
}
.guide-step-marker{
  position:relative;
  display:flex;
  justify-content:center;
}
.guide-step-marker::after{
  content:"";
  position:absolute;
  top:23px;
  bottom:-23px;
  width:2px;
  background:linear-gradient(var(--color-accent),var(--color-accent-blue));
}
.guide-step:last-child .guide-step-marker::after{
  display:none;
}
.guide-step-marker span{
  position:relative;
  z-index:1;
  width:18px;
  height:18px;
  margin-top:5px;
  flex:0 0 auto;
  border:5px solid var(--color-canvas);
  border-radius:var(--radius-pill);
  background:var(--color-accent);
  box-shadow:0 0 0 1px var(--color-line);
}
.guide-step-content{
  min-width:0;
}
.guide-step-content>p{
  font-size:1.02rem;
  line-height:1.82;
}
.guide-code{
  display:inline-block;
  margin-bottom:10px;
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.14em;
  color:var(--color-accent-deep);
}
.guide-action-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px 20px;
  margin-top:24px;
}
.guide-text-link{
  font-weight:750;
  text-decoration:none;
}
.platform-instructions{
  display:grid;
  gap:18px;
  margin-top:30px;
}
.platform-instruction{
  padding:clamp(22px,4vw,34px);
  border:1px solid var(--color-line);
  border-radius:var(--radius-panel);
  background:var(--color-canvas);
  box-shadow:var(--shadow-card);
}
.platform-instruction:nth-child(even){
  background:var(--color-panel);
}
.platform-heading{
  display:flex;
  align-items:center;
  gap:16px;
  margin-bottom:18px;
}
.platform-heading .platform-icon{
  flex:0 0 auto;
  color:var(--color-ink);
}
.platform-heading h3{
  margin-bottom:0;
}
.platform-heading .guide-code{
  margin-bottom:4px;
}
.platform-icon-outline svg{
  width:26px;
  height:26px;
}
.completion-panel{
  margin-top:34px;
  background:linear-gradient(135deg,var(--color-accent-soft),var(--color-canvas));
}
.completion-panel h3{
  margin-top:20px;
}
.completion-panel p{
  max-width:650px;
}
.completion-panel .actions{
  margin-top:24px;
}
@media(max-width:768px){
  .guide-hero::before{
    background-size:36px 36px;
  }
  .guide-layout{
    padding-top:10px;
  }
  .guide-document{
    padding-top:8px;
  }
  .guide-document>.callout{
    margin-bottom:42px;
  }
  .guide-step{
    grid-template-columns:24px minmax(0,1fr);
    gap:12px;
    padding-bottom:58px;
  }
  .guide-step-marker span{
    width:15px;
    height:15px;
    border-width:4px;
  }
  .guide-step-marker::after{
    top:20px;
  }
  .platform-heading{
    align-items:flex-start;
  }
}
@media(max-width:640px){
  .guide-facts{
    align-items:flex-start;
    flex-direction:column;
  }
  .guide-facts .chip{
    width:auto;
  }
  .guide-action-row{
    align-items:stretch;
    flex-direction:column;
  }
  .guide-action-row .guide-text-link{
    padding:8px 2px;
  }
  .completion-panel .actions{
    display:grid;
    grid-template-columns:1fr;
  }
}