.ai-hero{
  position:relative;
  overflow-x:clip;
}
.ai-hero::before{
  position:absolute;
  right:-18%;
  bottom:-48%;
  width:72%;
  aspect-ratio:1;
  border-radius:50%;
  background:radial-gradient(circle,var(--color-glow-high),var(--color-glow-low) 42%,transparent 72%);
  content:"";
  pointer-events:none;
}
.ai-hero-grid{
  position:relative;
  display:grid;
  min-height:calc(100svh - var(--header-height));
  grid-template-columns:minmax(0,.9fr) minmax(420px,1.1fr);
  gap:clamp(42px,7vw,96px);
  align-items:center;
  padding-top:clamp(58px,8vw,96px);
  padding-bottom:clamp(64px,9vw,110px);
}
.ai-hero-copy{
  position:relative;
  z-index:2;
}
.ai-hero-copy h1{
  max-width:680px;
  margin-bottom:24px;
  color:var(--color-dusk-ink);
  font-size:clamp(48px,5vw,68px);
}
.ai-hero-lead{
  max-width:670px;
  margin-bottom:28px;
  color:var(--color-dusk-muted);
  font-size:clamp(17px,1.8vw,20px);
  line-height:1.8;
}
.ai-signup-note{
  margin:16px 0 20px;
  color:var(--color-dusk-muted);
  font-size:13px;
}
.ai-fact-row{
  display:flex;
  flex-wrap:wrap;
  gap:9px;
  margin:0;
  padding:0;
  list-style:none;
}
.ai-fact-row li{
  display:inline-flex;
  align-items:center;
  gap:4px;
  min-height:34px;
  padding:6px 12px;
  border:1px solid var(--color-dusk-line);
  border-radius:var(--radius-pill);
  background:var(--color-dusk-chip);
  color:var(--color-dusk-ink);
  font-size:12px;
}
.ai-fact-row li::before{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--color-violet);
  content:"";
  flex-shrink:0;
}
.ai-workbench{
  position:relative;
  z-index:1;
  overflow:hidden;
  border:1px solid var(--color-card-edge);
  border-radius:var(--radius-lg);
  background:var(--color-panel);
  box-shadow:0 0 0 1px var(--color-ring),0 34px 72px var(--color-shadow-deep),0 10px 26px var(--color-shadow-mid);
  color:var(--color-ink);
  transform:rotate(2deg);
}
.ai-workbench::after{
  position:absolute;
  right:24px;
  bottom:-14px;
  left:24px;
  height:30px;
  border-radius:var(--radius-lg);
  background:var(--color-dusk-panel);
  content:"";
  z-index:-1;
}
.ai-workbench-chrome{
  display:flex;
  align-items:center;
  gap:7px;
  padding:12px 16px;
  border-bottom:1px solid var(--color-border);
  background:var(--color-panel-alt);
}
.ai-workbench-title{
  margin-left:auto;
  color:var(--color-muted);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:800;
  letter-spacing:.08em;
}
.ai-workbench-body{
  display:grid;
  grid-template-columns:minmax(140px,.72fr) minmax(0,1.28fr);
  gap:0;
  min-height:390px;
}
.ai-tool-column{
  display:flex;
  flex-direction:column;
  gap:8px;
  padding:24px 18px;
  border-right:1px solid var(--color-border);
  background:var(--color-panel-alt);
}
.ai-panel-label{
  margin-bottom:8px;
  color:var(--color-muted);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:800;
  letter-spacing:.08em;
}
.ai-tool-item{
  padding:10px 12px;
  border:1px solid transparent;
  border-radius:var(--radius-sm);
  color:var(--color-muted);
  font-size:13px;
  font-weight:700;
}
.ai-tool-item.is-current{
  border-color:var(--color-accent-line);
  background:var(--color-panel);
  color:var(--color-accent-dark);
}
.ai-check-column{
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  padding:clamp(24px,4vw,42px);
}
.ai-check-column h2{
  max-width:390px;
  margin:18px 0 28px;
  font-size:clamp(25px,3vw,36px);
}
.ai-check-list{
  width:100%;
  margin:0;
}
.ai-check-list div{
  display:grid;
  grid-template-columns:64px 1fr;
  gap:16px;
  padding:14px 0;
  border-top:1px solid var(--color-border);
}
.ai-check-list dt{
  color:var(--color-ink);
  font-weight:800;
}
.ai-check-list dd{
  margin:0;
  color:var(--color-muted);
}
.ai-workbench-note{
  display:flex;
  align-items:center;
  gap:9px;
  margin:auto 0 0;
  padding-top:24px;
  color:var(--color-muted);
  font-size:12px;
}
.ai-article{
  padding-top:48px;
  padding-bottom:var(--section-space);
}
.ai-article>.toc-tabs{
  margin-bottom:10px;
}
.ai-section{
  border-bottom:1px solid var(--color-border);
}
.ai-section:last-child{
  border-bottom:0;
}
.ai-section-heading{
  max-width:820px;
  margin-bottom:40px;
}
.ai-section-heading h2{
  margin-bottom:18px;
}
.ai-principles{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
}
.ai-principle{
  padding:26px;
  border-top:3px solid var(--color-accent);
  border-right:1px solid var(--color-border);
  border-bottom:1px solid var(--color-border);
  border-left:1px solid var(--color-border);
  border-radius:var(--radius-md);
  background:var(--color-panel);
}
.ai-principle h3{
  margin:18px 0 12px;
  font-size:21px;
}
.ai-principle p{
  margin-bottom:0;
  color:var(--color-muted);
}
.ai-tool-ledger{
  border-top:1px solid var(--color-border);
}
.ai-tool-row{
  display:grid;
  grid-template-columns:minmax(190px,.42fr) minmax(0,1fr);
  gap:clamp(24px,5vw,72px);
  align-items:start;
  padding:30px 18px;
  border-bottom:1px solid var(--color-border);
  transition:transform var(--transition-fast),background var(--transition-fast);
}
.ai-tool-row:hover{
  background:var(--color-panel);
  transform:translateX(4px);
}
.ai-tool-name h3{
  margin:12px 0 0;
  font-size:24px;
}
.ai-tool-row>p{
  margin:0;
  color:var(--color-muted);
}
.ai-comparison-table td:nth-child(3){
  color:var(--color-accent-dark);
  font-weight:700;
}
.ai-split-notes{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(28px,6vw,80px);
}
.ai-split-notes>div{
  padding-top:24px;
  border-top:3px solid var(--color-violet);
}
.ai-split-notes h3{
  margin-bottom:16px;
}
.ai-split-notes p{
  color:var(--color-muted);
}
.ai-flow-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.ai-flow-card h3{
  margin-bottom:14px;
}
.ai-flow-card p{
  margin-bottom:0;
  color:var(--color-muted);
}
.ai-dev-list{
  display:grid;
  border-top:1px solid var(--color-border);
}
.ai-dev-list article{
  display:grid;
  grid-template-columns:minmax(210px,.45fr) minmax(0,1fr);
  gap:clamp(24px,5vw,72px);
  padding:28px 18px;
  border-bottom:1px solid var(--color-border);
}
.ai-dev-list h3,
.ai-dev-list p{
  margin:0;
}
.ai-dev-list p{
  color:var(--color-muted);
}
.ai-choice-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:18px;
}
.ai-choice-item{
  padding:24px;
  border:1px solid var(--color-border);
  border-radius:var(--radius-md);
  background:var(--color-panel);
}
.ai-choice-item::before{
  display:block;
  width:30px;
  height:3px;
  margin-bottom:20px;
  border-radius:var(--radius-pill);
  background:var(--color-accent);
  content:"";
}
.ai-choice-item h3{
  font-size:20px;
}
.ai-choice-item p{
  margin-bottom:0;
  color:var(--color-muted);
}
.ai-final-links{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  gap:32px;
  align-items:center;
  margin-top:44px;
  padding:clamp(24px,4vw,38px);
  border:1px solid var(--color-border);
  border-radius:var(--radius-lg);
  background:var(--color-panel-alt);
}
.ai-final-links h3{
  margin-bottom:10px;
}
.ai-final-links p{
  max-width:850px;
  margin-bottom:0;
  color:var(--color-muted);
}
@media (max-width:1040px){
  .ai-hero-grid{
    grid-template-columns:1fr;
    min-height:auto;
  }
  .ai-hero-copy{
    max-width:780px;
  }
  .ai-workbench{
    max-width:760px;
  }
  .ai-principles{
    grid-template-columns:1fr;
  }
}
@media (max-width:780px){
  .ai-hero-copy h1{
    font-size:clamp(34px,9vw,40px);
  }
  .ai-workbench{
    transform:none;
  }
  .ai-workbench-body{
    grid-template-columns:1fr;
  }
  .ai-tool-column{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    border-right:0;
    border-bottom:1px solid var(--color-border);
  }
  .ai-panel-label{
    grid-column:1/-1;
  }
  .ai-tool-row,
  .ai-dev-list article{
    grid-template-columns:1fr;
    gap:18px;
  }
  .ai-split-notes,
  .ai-flow-grid,
  .ai-choice-grid{
    grid-template-columns:1fr;
  }
  .ai-final-links{
    grid-template-columns:1fr;
  }
}
@media (max-width:520px){
  .ai-hero-grid{
    padding-top:48px;
  }
  .ai-workbench-title{
    overflow-wrap:anywhere;
    text-align:right;
  }
  .ai-tool-column{
    grid-template-columns:1fr;
  }
  .ai-panel-label{
    grid-column:auto;
  }
  .ai-check-column{
    padding:22px 18px;
  }
  .ai-check-list div{
    grid-template-columns:1fr;
    gap:4px;
  }
  .ai-principle,
  .ai-choice-item{
    padding:20px;
  }
  .ai-tool-row,
  .ai-dev-list article{
    padding-right:4px;
    padding-left:4px;
  }
}
@media (prefers-reduced-motion:reduce){
  .ai-workbench,
  .ai-tool-row{
    transform:none;
  }
}