.ai-hero{
  position:relative;
  overflow-x:clip;
  background:
    linear-gradient(to bottom,var(--color-page),var(--color-panel-soft));
  border-bottom:1px solid var(--color-line);
}
.ai-hero::before{
  content:"";
  position:absolute;
  inset:0 0 auto 0;
  height:78%;
  background:
    radial-gradient(circle at 82% 35%,var(--color-glow),transparent 34%),
    radial-gradient(circle at 14% 12%,var(--color-accent-soft),transparent 29%);
  pointer-events:none;
}
.ai-hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr);
  align-items:center;
  gap:clamp(48px,7vw,96px);
  min-height:calc(100svh - var(--header-height));
  padding-top:clamp(64px,8vw,112px);
  padding-bottom:clamp(64px,8vw,112px);
}
.ai-hero-copy{
  position:relative;
  z-index:2;
}
.ai-hero-copy h1{
  max-width:720px;
  margin:22px 0 24px;
}
.ai-hero-copy .button-row{
  margin-bottom:22px;
}
.ai-hero-copy .lead{
  max-width:690px;
  margin-bottom:0;
}
.ai-trust-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:24px;
  padding-top:20px;
  border-top:1px solid var(--color-line);
}
.ai-trust-row span{
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:var(--color-muted);
  font-size:13px;
}
.ai-trust-row span::before{
  content:"";
  width:7px;
  height:7px;
  flex:0 0 auto;
  border-radius:50%;
  background:var(--color-accent);
}
.ai-route-board{
  position:relative;
  z-index:1;
  overflow:hidden;
  border:1px solid var(--color-dark-line);
  border-radius:var(--radius-md);
  background:var(--color-dark);
  color:var(--color-dark-text);
  box-shadow:var(--shadow-window);
  transform:rotate(1.2deg);
}
.ai-route-board::before{
  content:"";
  position:absolute;
  inset:auto -18% -30% 20%;
  height:62%;
  background:radial-gradient(closest-side,var(--color-glow),transparent);
  pointer-events:none;
}
.ai-board-chrome{
  position:relative;
  display:flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding-inline:17px;
  background:var(--color-dark-panel);
  border-bottom:1px solid var(--color-dark-line);
}
.ai-board-light{
  width:10px;
  height:10px;
  flex:0 0 auto;
  border-radius:50%;
}
.ai-board-light-error{background:var(--color-error)}
.ai-board-light-warning{background:var(--color-warning)}
.ai-board-light-success{background:var(--color-success)}
.ai-board-name{
  margin-left:8px;
  color:var(--color-dark-muted);
  font-family:var(--font-mono);
  font-size:11px;
  letter-spacing:.08em;
}
.ai-board-body{
  position:relative;
  padding:clamp(24px,4vw,38px);
  background-image:radial-gradient(var(--color-dark-line) 1px,transparent 1.4px);
  background-size:13px 13px;
}
.ai-board-status{
  display:flex;
  align-items:center;
  gap:13px;
  padding-bottom:24px;
  border-bottom:1px solid var(--color-dark-line);
}
.ai-board-status strong,
.ai-board-status small{
  display:block;
}
.ai-board-status strong{
  color:var(--color-dark-text);
  font-size:15px;
}
.ai-board-status small{
  margin-top:2px;
  color:var(--color-dark-muted);
  font-size:12px;
}
.ai-board-pulse{
  width:14px;
  height:14px;
  flex:0 0 auto;
  border:4px solid var(--color-accent-soft);
  border-radius:50%;
  background:var(--color-accent);
  box-shadow:0 0 20px var(--color-glow);
}
.ai-route-flow{
  display:grid;
  grid-template-columns:minmax(0,1fr) 76px minmax(0,1fr);
  align-items:center;
  gap:8px;
  padding:28px 0;
}
.ai-route-flow svg{
  width:100%;
  color:var(--color-dark-muted);
}
.ai-route-flow path{
  fill:none;
  stroke:currentColor;
  stroke-width:1.6;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.ai-flow-node{
  padding:15px;
  border:1px solid var(--color-dark-line);
  border-radius:var(--radius-sm);
  background:var(--color-dark-panel);
}
.ai-flow-node span,
.ai-flow-node strong{
  display:block;
}
.ai-flow-node span{
  margin-bottom:4px;
  color:var(--color-dark-muted);
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.08em;
}
.ai-flow-node strong{
  color:var(--color-dark-text);
  font-size:14px;
}
.ai-flow-node.is-highlighted{
  border-color:var(--color-accent);
  box-shadow:inset 3px 0 0 var(--color-accent);
}
.ai-check-list{
  position:relative;
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:7px;
}
.ai-check-list li{
  display:grid;
  grid-template-columns:9px minmax(88px,.45fr) minmax(0,1fr);
  align-items:center;
  gap:11px;
  min-height:48px;
  padding:9px 13px;
  border-radius:var(--radius-xs);
  background:var(--color-dark-panel);
}
.ai-check-list strong{
  color:var(--color-dark-text);
  font-size:13px;
}
.ai-check-list small{
  color:var(--color-dark-muted);
  font-size:11px;
}
.ai-check-dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--color-accent);
}
.ai-section-heading{
  max-width:850px;
  margin-bottom:clamp(34px,5vw,58px);
}
.ai-section-heading h2{
  margin:14px 0 18px;
}
.ai-section-heading p{
  margin-bottom:0;
  color:var(--color-muted);
  font-size:17px;
}
.ai-section-heading-dark h2{
  color:var(--color-dark-text);
}
.ai-section-heading-dark p{
  color:var(--color-dark-muted);
}
.ai-principles{
  background:var(--color-panel);
}
.ai-principle-ledger{
  border-top:1px solid var(--color-line);
}
.ai-principle-item{
  display:grid;
  grid-template-columns:150px minmax(0,1fr);
  gap:clamp(24px,5vw,68px);
  padding-top:30px;
  padding-bottom:30px;
  border-bottom:1px solid var(--color-line);
}
.ai-principle-item h3{
  margin-bottom:10px;
  font-size:24px;
}
.ai-principle-item p{
  max-width:850px;
  margin-bottom:0;
  color:var(--color-muted);
}
.ai-principle-key{
  padding-top:5px;
  color:var(--color-accent-deep);
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:700;
  letter-spacing:.12em;
}
.ai-matrix-section{
  border-top:1px solid var(--color-dark-line);
  border-bottom:1px solid var(--color-dark-line);
}
.ai-table-shell{
  border:1px solid var(--color-dark-line);
  border-radius:var(--radius-sm);
}
.ai-tool-table{
  border:0;
}
.ai-tool-table th{
  background:var(--color-dark-raised);
  color:var(--color-dark-text);
  border-bottom-color:var(--color-dark-line);
}
.ai-tool-table td{
  background:var(--color-dark-panel);
  color:var(--color-dark-muted);
  border-bottom-color:var(--color-dark-line);
}
.ai-tool-table td:first-child{
  color:var(--color-accent);
  font-family:var(--font-mono);
}
.ai-tools-section{
  background:var(--color-page);
}
.ai-tool-ledger{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  border-top:1px solid var(--color-line);
  border-left:1px solid var(--color-line);
}
.ai-tool-entry{
  display:grid;
  grid-template-columns:120px minmax(0,1fr);
  gap:24px;
  padding:clamp(25px,3vw,38px);
  background:var(--color-panel);
  border-right:1px solid var(--color-line);
  border-bottom:1px solid var(--color-line);
}
.ai-tool-name span{
  display:block;
  margin-bottom:9px;
  color:var(--color-accent-deep);
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.1em;
}
.ai-tool-name h3{
  margin-bottom:0;
  font-size:21px;
}
.ai-tool-copy p{
  color:var(--color-muted);
}
.ai-tool-copy p:last-child{
  margin-bottom:0;
}
.ai-session-section{
  background:var(--color-panel-soft);
  border-top:1px solid var(--color-line);
  border-bottom:1px solid var(--color-line);
}
.ai-session-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:1px;
  overflow:hidden;
  border:1px solid var(--color-line);
  border-radius:var(--radius-md);
  background:var(--color-line);
}
.ai-session-grid section{
  padding:clamp(24px,4vw,38px);
  background:var(--color-panel);
}
.ai-session-grid h3{
  margin-bottom:12px;
  font-size:23px;
}
.ai-session-grid p{
  margin-bottom:0;
  color:var(--color-muted);
}
.ai-mode-section{
  background:var(--color-page);
}
.ai-mode-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.ai-mode-panel{
  padding:clamp(28px,4vw,44px);
  border:1px solid var(--color-line);
  border-radius:var(--radius-md);
  background:var(--color-panel);
}
.ai-mode-panel h3{
  margin:10px 0 16px;
}
.ai-mode-panel p,
.ai-mode-panel li{
  color:var(--color-muted);
}
.ai-mode-panel li+li{
  margin-top:8px;
}
.ai-mode-panel-dark{
  border-color:var(--color-dark);
  background:var(--color-dark);
  background-image:radial-gradient(var(--color-dark-line) 1px,transparent 1.4px);
  background-size:13px 13px;
}
.ai-mode-panel-dark h3{
  color:var(--color-dark-text);
}
.ai-mode-panel-dark p,
.ai-mode-panel-dark li{
  color:var(--color-dark-muted);
}
.ai-mode-label{
  color:var(--color-accent-deep);
  font-family:var(--font-mono);
  font-size:11px;
  font-weight:800;
  letter-spacing:.12em;
}
.ai-mode-panel-dark .ai-mode-label{
  color:var(--color-accent);
}
.ai-callout{
  margin-top:24px;
}
.ai-developer-section{
  border-top:1px solid var(--color-dark-line);
  border-bottom:1px solid var(--color-dark-line);
}
.ai-developer-flow{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  border:1px solid var(--color-dark-line);
  border-radius:var(--radius-md);
  overflow:hidden;
}
.ai-developer-flow section{
  padding:clamp(25px,3vw,38px);
  background:var(--color-dark-panel);
}
.ai-developer-flow section+section{
  border-left:1px solid var(--color-dark-line);
}
.ai-developer-flow h3{
  margin:12px 0 16px;
  color:var(--color-dark-text);
  font-size:24px;
}
.ai-developer-flow p{
  margin-bottom:0;
  color:var(--color-dark-muted);
}
.ai-developer-flow code{
  color:var(--color-accent);
}
.ai-dev-mark{
  color:var(--color-accent);
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.1em;
}
.ai-diagnostics{
  background:var(--color-panel);
}
.ai-diagnostic-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
}
.ai-diagnostic-grid section{
  padding:26px;
  border-top:3px solid var(--color-accent);
  background:var(--color-panel-soft);
  border-radius:0 0 var(--radius-sm) var(--radius-sm);
}
.ai-diagnostic-grid h3{
  margin-bottom:12px;
  font-size:20px;
}
.ai-diagnostic-grid p{
  margin-bottom:0;
  color:var(--color-muted);
}
.ai-selection{
  background:var(--color-page);
}
.ai-selection-panel{
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  align-items:center;
  gap:clamp(30px,6vw,80px);
  padding:clamp(30px,5vw,58px);
  border:1px solid var(--color-line);
  border-radius:var(--radius-md);
  background:var(--color-panel-soft);
  box-shadow:var(--shadow-card);
}
.ai-selection-panel h2{
  margin:16px 0;
  font-size:clamp(32px,4vw,48px);
}
.ai-selection-panel p{
  max-width:900px;
  color:var(--color-muted);
}
.ai-selection-panel p:last-child{
  margin-bottom:0;
}
.ai-selection-actions{
  display:grid;
  gap:12px;
  min-width:190px;
}
@media (max-width:1100px){
  .ai-hero-inner{
    grid-template-columns:1fr;
    min-height:auto;
  }
  .ai-route-board{
    width:min(620px,100%);
  }
  .ai-tool-ledger{
    grid-template-columns:1fr;
  }
  .ai-developer-flow{
    grid-template-columns:1fr;
  }
  .ai-developer-flow section+section{
    border-left:0;
    border-top:1px solid var(--color-dark-line);
  }
  .ai-diagnostic-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
}
@media (max-width:768px){
  .ai-hero-inner{
    gap:42px;
    padding-top:52px;
    padding-bottom:62px;
  }
  .ai-route-board{
    transform:none;
  }
  .ai-principle-item{
    grid-template-columns:1fr;
    gap:8px;
  }
  .ai-tool-entry{
    grid-template-columns:1fr;
  }
  .ai-tool-name{
    display:flex;
    align-items:baseline;
    gap:12px;
  }
  .ai-tool-name span{
    margin-bottom:0;
  }
  .ai-session-grid,
  .ai-mode-grid{
    grid-template-columns:1fr;
  }
  .ai-diagnostic-grid{
    grid-template-columns:1fr;
  }
  .ai-selection-panel{
    grid-template-columns:1fr;
  }
  .ai-selection-actions{
    grid-template-columns:repeat(2,minmax(0,1fr));
    min-width:0;
  }
}
@media (max-width:520px){
  .ai-route-flow{
    grid-template-columns:1fr;
  }
  .ai-route-flow svg{
    width:54px;
    margin-inline:auto;
    transform:rotate(90deg);
  }
  .ai-check-list li{
    grid-template-columns:9px minmax(0,1fr);
  }
  .ai-check-list small{
    grid-column:2;
  }
  .ai-selection-actions{
    grid-template-columns:1fr;
  }
}
@media (prefers-reduced-motion:reduce){
  .ai-route-board{
    transform:none;
  }
}