/* Foundation landing HUD tree */
.discovery-home{display:grid;gap:14px}
.discovery-home .public-title{
  margin:0;
  padding:18px 20px;
  display:grid;
  grid-template-columns:minmax(0,1fr) auto;
  align-items:end;
  gap:12px;
  background:
    linear-gradient(90deg,color-mix(in srgb,var(--skin-primary) 5%,transparent),transparent 36%),
    color-mix(in srgb,var(--skin-panel) 94%,#000)!important
}
.discovery-home .public-title .eyebrow{grid-column:1/-1;margin:0}
.discovery-home .public-title h1{margin:0;font-size:clamp(28px,5vw,52px);letter-spacing:.08em}
.discovery-home .public-title>p:not(.eyebrow){margin:0;color:var(--skin-muted);font-size:13px;max-width:660px}
.discovery-home .access-strip{display:none}
.discovery-home>.topic-chips{
  order:3;display:flex;flex-wrap:nowrap;overflow-x:auto;scroll-snap-type:x proximity;
  margin:0;padding:0 0 3px;scrollbar-width:none
}
.discovery-home>.topic-chips::-webkit-scrollbar{display:none}
.discovery-home>.topic-chips .topic-chip{flex:0 0 auto;scroll-snap-align:start;font-size:11px;min-height:38px;display:flex;align-items:center}
.discovery-home>.landing-hud{order:1}
.discovery-home>.landing-system-tree{order:2}
.discovery-home>.landing-trust-strip{order:4}
.discovery-home>.landing-faq-tree{order:5}

.landing-hud{
  display:grid;grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);min-height:570px;
  border:1px solid var(--skin-line);background:linear-gradient(145deg,var(--skin-panel),var(--skin-bg-2));
  overflow:hidden;clip-path:polygon(0 0,calc(100% - 18px) 0,100% 18px,100% 100%,18px 100%,0 calc(100% - 18px));
  box-shadow:0 24px 70px #0008
}
.landing-command{min-width:0;padding:clamp(18px,3vw,30px);display:flex;flex-direction:column}
.landing-command-title{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:18px}
.landing-command-title h2{margin:0 0 7px;font-size:clamp(30px,5vw,52px);line-height:.96}
.landing-command-title p{margin:0;max-width:620px;color:var(--skin-muted);line-height:1.45;font-size:14px}
.landing-status{flex:0 0 auto;display:inline-flex;align-items:center;gap:7px;padding:7px 9px;border:1px solid var(--skin-line);color:var(--skin-success);font:800 8px/1 var(--tr-ui);letter-spacing:.1em}
.landing-status i{width:7px;height:7px;border-radius:50%;background:var(--skin-success);box-shadow:0 0 8px var(--skin-success)}

.landing-tree{display:grid;gap:8px;margin-top:auto}
.landing-branch{position:relative;border:1px solid var(--skin-line);background:color-mix(in srgb,var(--skin-panel-2) 78%,transparent);overflow:hidden}
.landing-branch::before{content:"";position:absolute;left:29px;top:-9px;width:1px;height:9px;background:var(--skin-line)}
.landing-branch:first-child::before{display:none}
.landing-branch>summary{
  min-height:68px;display:grid;grid-template-columns:44px minmax(0,1fr) auto;gap:12px;align-items:center;
  padding:10px 12px;cursor:pointer;list-style:none;color:var(--skin-text)
}
.landing-branch>summary::-webkit-details-marker{display:none}
.landing-branch>summary:hover,.landing-branch>summary:focus-visible{background:color-mix(in srgb,var(--skin-primary) 7%,transparent);outline:none}
.landing-branch[open]{border-color:var(--skin-line-strong);box-shadow:0 0 20px var(--skin-glow)}
.landing-branch[open]>summary{border-bottom:1px solid var(--skin-line)}
.branch-code{
  width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--skin-line);
  color:var(--skin-primary);font:800 10px/1 var(--tr-ui)
}
.landing-branch-primary .branch-code{border-color:var(--skin-primary);box-shadow:inset 0 0 16px var(--skin-glow)}
.landing-branch>summary>span:nth-child(2){min-width:0}
.landing-branch>summary b,.landing-branch>summary small{display:block}
.landing-branch>summary b{font-size:14px;letter-spacing:.04em}
.landing-branch>summary small{margin-top:4px;color:var(--skin-muted);font-size:11px;line-height:1.25}
.branch-state{color:var(--skin-primary);font:800 8px/1 var(--tr-ui);letter-spacing:.09em}
.branch-state::before{content:"OPEN"}
.landing-branch[open] .branch-state::before{content:"CLOSE"}
.landing-branch-panel{padding:14px 14px 16px 68px;animation:landing-branch-in .18s ease-out}
.landing-branch-panel>p{margin:10px 0;color:var(--skin-muted);font-size:12px;line-height:1.5}
.landing-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}
.landing-steps span{display:flex;align-items:center;gap:7px;min-height:42px;padding:7px;border:1px solid color-mix(in srgb,var(--skin-line) 75%,transparent);background:rgba(0,0,0,.12);font-size:10px}
.landing-steps b{display:grid;place-items:center;width:22px;height:22px;border:1px solid var(--skin-line);color:var(--skin-primary);font:800 8px var(--tr-ui)}
.landing-branch-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:11px}
.landing-action{min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:9px 12px;border:1px solid var(--skin-line);background:color-mix(in srgb,var(--skin-panel) 88%,#000);color:var(--skin-text);text-decoration:none;font-weight:800;font-size:12px}
.landing-action:hover,.landing-action:focus-visible{border-color:var(--skin-primary);box-shadow:0 0 14px var(--skin-glow);outline:none}
.landing-subtree{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
.landing-subtree a{min-height:66px;display:flex;flex-direction:column;justify-content:center;padding:10px;border:1px solid var(--skin-line);background:rgba(0,0,0,.12);text-decoration:none}
.landing-subtree b{color:var(--skin-secondary);font:800 9px var(--tr-ui);letter-spacing:.09em}
.landing-subtree span{margin-top:5px;color:var(--skin-muted);font-size:11px;line-height:1.3}
.landing-subtree a:hover,.landing-subtree a:focus-visible{border-color:var(--skin-primary);background:color-mix(in srgb,var(--skin-primary) 6%,transparent);outline:none}

.landing-access-slot{padding:10px}
.landing-access-slot>.entry-console{margin:0;clip-path:none;box-shadow:none}
.landing-access-slot .entry-console-head{display:none}
.landing-access-slot .entry-console>.pad{padding:0}
.landing-access-slot .entry-console-grid{grid-template-columns:.76fr 1.24fr;gap:8px}
.landing-access-slot .entry-lane{padding:12px}
.landing-access-slot .entry-lane>p{font-size:11px;margin:6px 0}
.landing-access-slot .entry-lane h3{font-size:17px}
.landing-access-placeholder{display:grid;gap:10px;padding:12px}
.landing-access-placeholder p{margin:0;color:var(--skin-muted)}

.landing-city-visual{position:relative;min-width:0;min-height:100%;overflow:hidden;background:#02050a}
.landing-city-visual::before{content:"";position:absolute;inset:0;z-index:2;background:linear-gradient(90deg,var(--skin-panel) 0,transparent 25%),linear-gradient(0deg,rgba(0,0,0,.8),transparent 45%)}
.landing-city-visual::after{content:"";position:absolute;inset:0;z-index:3;background:repeating-linear-gradient(0deg,transparent 0 4px,rgba(255,255,255,.025) 4px 5px);pointer-events:none}
.landing-city-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:var(--skin-image-filter);transform:scale(1.03)}
.city-scan{position:absolute;left:0;right:0;top:-16%;height:18%;z-index:4;background:linear-gradient(180deg,transparent,rgba(101,232,255,.16),transparent);animation:city-scan 7s linear infinite;pointer-events:none}
.city-readout{position:absolute;left:20px;right:20px;bottom:22px;z-index:5;padding:12px;border-left:2px solid var(--skin-primary);background:rgba(2,7,12,.72);backdrop-filter:blur(8px)}
.city-readout span,.city-readout b,.city-readout small{display:block}
.city-readout span{color:var(--skin-secondary);font:800 8px var(--tr-ui);letter-spacing:.12em}
.city-readout b{margin:4px 0;color:#fff;font-size:22px;letter-spacing:.05em}
.city-readout small{color:#b9ccd3;font-size:9px;letter-spacing:.08em}
.city-meter{position:absolute;right:18px;top:18px;z-index:5;display:flex;gap:4px}
.city-meter i{display:block;width:5px;height:24px;border:1px solid var(--skin-primary);background:color-mix(in srgb,var(--skin-primary) 25%,transparent)}
.city-meter i:nth-child(2){height:31px}.city-meter i:nth-child(3){height:18px}.city-meter i:nth-child(4){height:27px}.city-meter i:nth-child(5){height:14px}

.landing-system-tree{border:1px solid var(--skin-line);background:linear-gradient(145deg,var(--skin-panel),var(--skin-bg-2));padding:16px}
.landing-wheel-note{margin:0 0 10px;padding:8px 10px;border-left:2px solid var(--skin-primary);background:color-mix(in srgb,var(--skin-primary) 5%,transparent);color:var(--skin-muted);font-size:10px;line-height:1.4}
.landing-system-tree>header{display:flex;align-items:flex-end;justify-content:space-between;gap:15px;margin-bottom:12px}
.landing-system-tree h2{margin:2px 0 0;font-size:clamp(22px,3vw,32px)}
.landing-system-tree>header>a{min-height:40px;display:flex;align-items:center;padding:8px 10px;border:1px solid var(--skin-line);text-decoration:none;font-size:11px}
.landing-system-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px}
.landing-system-grid details{border:1px solid var(--skin-line);background:color-mix(in srgb,var(--skin-panel-2) 72%,transparent)}
.landing-system-grid summary{min-height:58px;display:flex;flex-direction:column;justify-content:center;gap:5px;padding:10px;cursor:pointer;list-style:none}
.landing-system-grid summary::-webkit-details-marker{display:none}
.landing-system-grid summary span{color:var(--skin-secondary);font:800 8px var(--tr-ui);letter-spacing:.1em}
.landing-system-grid summary b{font-size:13px}
.landing-system-grid details[open]{border-color:var(--skin-line-strong)}
.landing-system-grid details p{margin:0;padding:0 10px 8px;color:var(--skin-muted);font-size:11px;line-height:1.45}
.landing-system-grid details>a{display:flex;align-items:center;min-height:38px;padding:7px 10px;border-top:1px solid var(--skin-line);text-decoration:none;font-size:10px}
.landing-trust-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px}
.landing-trust-strip>span{min-height:58px;display:flex;flex-direction:column;justify-content:center;padding:10px;border:1px solid var(--skin-line);background:color-mix(in srgb,var(--skin-panel) 85%,transparent)}
.landing-trust-strip b{color:var(--skin-primary);font:800 8px var(--tr-ui);letter-spacing:.1em}
.landing-trust-strip small{margin-top:4px;color:var(--skin-muted);font-size:10px}
.landing-faq-tree{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
.landing-faq-tree details{border:1px solid var(--skin-line);background:color-mix(in srgb,var(--skin-panel) 86%,transparent)}
.landing-faq-tree summary{min-height:48px;display:flex;align-items:center;padding:10px 12px;cursor:pointer;font-weight:800;font-size:12px}
.landing-faq-tree p{margin:0;padding:0 12px 12px;color:var(--skin-muted);font-size:11px;line-height:1.5}

@keyframes landing-branch-in{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}
@keyframes city-scan{to{top:110%}}

@media(max-width:900px){
  .landing-hud{grid-template-columns:1fr;min-height:0}
  .landing-city-visual{min-height:280px;order:-1}
  .landing-city-visual::before{background:linear-gradient(0deg,var(--skin-panel) 0,transparent 45%)}
  .landing-system-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:650px){
  .discovery-home .public-title{grid-template-columns:1fr;padding:14px}
  .discovery-home .public-title .eyebrow{grid-column:auto}
  .landing-command{padding:14px}
  .landing-command-title{display:grid}
  .landing-status{justify-self:start}
  .landing-branch>summary{grid-template-columns:38px minmax(0,1fr) auto;gap:8px;padding:8px}
  .branch-code{width:36px;height:36px}
  .landing-branch-panel{padding:10px}
  .landing-steps{grid-template-columns:1fr}
  .landing-subtree{grid-template-columns:1fr}
  .landing-access-slot{padding:6px}
  .landing-access-slot .entry-console-grid{grid-template-columns:1fr}
  .landing-access-slot .new-entry-lane{display:none}
  .landing-system-tree{padding:10px}
  .landing-system-tree>header{align-items:flex-start}
  .landing-system-grid{grid-template-columns:1fr 1fr}
  .landing-trust-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .landing-faq-tree{grid-template-columns:1fr}
}
@media(max-width:410px){
  .landing-system-grid{grid-template-columns:1fr}
  .landing-city-visual{min-height:230px}
  .city-readout{left:12px;right:12px;bottom:12px}
  .landing-branch>summary small{font-size:10px}
}
@media(prefers-reduced-motion:reduce){
  .landing-branch-panel{animation:none}
  .city-scan{animation:none;display:none}
}