/* ==========================================================================
   NAUTILUS — "System architecture" section (reusable)
   Photo with numbered hotspots, synced with the component list.
   All selectors prefixed .na- so nothing collides with existing site CSS.
   ========================================================================== */

.na-arch{
  /* --- tokens (edit here) --- */
  --na-bg:#F2F2F3;
  --na-surface:#FFFFFF;
  --na-photo:#E1E1E4;
  --na-ink:#101014;
  --na-grey:#6E6E78;
  --na-grey-dim:#9A9AA4;
  --na-line:#D4D3D7;
  --na-wine:#A11A3D;
  --na-wine-bright:#C8264F;
  --na-wine-soft:rgba(161,26,61,.10);
  --na-display:'Exo2',system-ui,sans-serif;
  --na-body:'Exo2',system-ui,sans-serif;
  --na-mono:'Exo2',ui-monospace,monospace;
  --na-max:1280px;

  padding:120px 0;
  background:var(--na-bg);
  color:var(--na-ink);
  font-family:var(--na-body);
  font-size:17px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
}
.na-arch *{box-sizing:border-box}
.na-wrap{max-width:var(--na-max);margin:0 auto;padding:0 34px}
.na-arch h2,.na-arch h3{font-family:var(--na-display);margin:0;line-height:1.05;letter-spacing:-.005em}
.na-arch h2{text-transform:uppercase;font-weight:700}
.na-arch p{margin:0}
.na-arch ul{list-style:none;margin:0;padding:0}

.na-tlm{
  font-family:var(--na-mono);
  /*font-size:11px;*/
  font-size:15px;
  letter-spacing:.2em;text-transform:uppercase;
  color:var(--na-wine);display:inline-flex;align-items:center;gap:10px;font-weight:700;
}
.na-tlm::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--na-wine);
  box-shadow:0 0 0 4px var(--na-wine-soft);flex:none;
}

.na-head{max-width:760px;margin-bottom:60px}
.na-head h2{font-size:var(--title-heading);margin:20px 0 18px}
.na-head p{color:var(--na-grey);font-size:18px}

/* ===================== layout ===================== */
.na-layout{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:start}
@media(max-width:1000px){ .na-layout{grid-template-columns:1fr;gap:38px} }

/* ===================== image + hotspots ===================== */
.na-stage{position:sticky;top:110px}
@media(max-width:1000px){ .na-stage{position:static} }

.na-frame{
  position:relative;aspect-ratio:4/3;background:var(--na-photo);
  border:1px solid var(--na-line);overflow:hidden;
}
.na-frame img{width:100%;height:100%;object-fit:cover;display:block}
.na-photo-ph{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-family:var(--na-mono);font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--na-grey-dim);text-align:center;padding:24px;
}

/* corner brackets */
.na-corner{position:absolute;width:22px;height:22px;border:1.5px solid var(--na-wine);opacity:.8;pointer-events:none}
.na-c1{top:14px;left:14px;border-right:0;border-bottom:0}
.na-c2{top:14px;right:14px;border-left:0;border-bottom:0}
.na-c3{bottom:14px;left:14px;border-right:0;border-top:0}
.na-c4{bottom:14px;right:14px;border-left:0;border-top:0}

/* scan sweep, plays once when the section enters the viewport */
.na-scan{
  position:absolute;left:0;right:0;top:0;height:34%;pointer-events:none;opacity:0;
  background:linear-gradient(180deg,transparent,rgba(161,26,61,.16),transparent);
}
.na-layout.is-in .na-scan{animation:na-sweep 1.5s cubic-bezier(.4,0,.2,1) .25s 1}
@keyframes na-sweep{
  0%{opacity:0;transform:translateY(-120%)}
  18%{opacity:1}
  85%{opacity:1}
  100%{opacity:0;transform:translateY(320%)}
}

/* pins */
.na-pin{
  position:absolute;transform:translate(-50%,-50%);width:44px;height:44px;
  background:none;border:0;padding:0;cursor:pointer;z-index:3;
  opacity:0;transition:opacity .5s ease;
}
.na-layout.is-in .na-pin{opacity:1}
.na-layout.is-in .na-pin:nth-of-type(1){transition-delay:.9s}
.na-layout.is-in .na-pin:nth-of-type(2){transition-delay:1.02s}
.na-layout.is-in .na-pin:nth-of-type(3){transition-delay:1.14s}
.na-layout.is-in .na-pin:nth-of-type(4){transition-delay:1.26s}
.na-layout.is-in .na-pin:nth-of-type(5){transition-delay:1.38s}
.na-layout.is-in .na-pin:nth-of-type(6){transition-delay:1.5s}

.na-dot{
  position:absolute;inset:0;margin:auto;width:13px;height:13px;border-radius:50%;
  background:var(--na-wine);border:2px solid #fff;
  box-shadow:0 0 0 0 rgba(161,26,61,.45);
  transition:transform .4s cubic-bezier(.16,1,.3,1),box-shadow .4s;
}
.na-num{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%) scale(.6);
  width:38px;height:38px;border-radius:50%;background:var(--na-wine);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--na-mono);font-size:12px;font-weight:700;
  opacity:0;transition:opacity .35s,transform .45s cubic-bezier(.16,1,.3,1);
}
.na-pin.is-active .na-dot{transform:scale(.4);box-shadow:0 0 0 14px rgba(161,26,61,.12)}
.na-pin.is-active .na-num{opacity:1;transform:translate(-50%,-50%) scale(1)}
.na-pin:hover .na-dot{transform:scale(1.25)}

/* idle ping on the non-active pins */
.na-pin::after{
  content:"";position:absolute;inset:0;margin:auto;width:13px;height:13px;border-radius:50%;
  border:1.5px solid var(--na-wine);opacity:0;
}
.na-layout.is-in .na-pin:not(.is-active)::after{animation:na-ping 2.8s ease-out infinite}
.na-layout.is-in .na-pin:nth-of-type(2):not(.is-active)::after{animation-delay:.5s}
.na-layout.is-in .na-pin:nth-of-type(3):not(.is-active)::after{animation-delay:1s}
.na-layout.is-in .na-pin:nth-of-type(4):not(.is-active)::after{animation-delay:1.5s}
@keyframes na-ping{
  0%{transform:scale(1);opacity:.7}
  70%{transform:scale(3.2);opacity:0}
  100%{opacity:0}
}

.na-caption{
  display:flex;justify-content:space-between;align-items:center;margin-top:14px;
  font-family:var(--na-mono);font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--na-grey-dim);
}
.na-live{display:inline-flex;align-items:center;gap:8px;color:var(--na-wine)}
.na-live::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--na-wine);
  animation:na-blink 1.6s ease-in-out infinite;
}
@keyframes na-blink{0%,100%{opacity:1}50%{opacity:.25}}

/* ===================== component list ===================== */
.na-list{border:0}
.na-txt{min-width:0}
.na-meta{color:var(--na-grey-dim)}

.na-item{
  position:relative;display:grid;grid-template-columns:54px 1fr;gap:18px;
  padding:26px 24px 26px 20px;border-top:1px solid var(--na-line);cursor:pointer;
  background:transparent;transition:background .35s;
}
.na-item:last-child{border-bottom:1px solid var(--na-line)}
.na-item::before{
  content:"";position:absolute;left:0;top:-1px;bottom:-1px;width:2px;background:var(--na-wine);
  transform:scaleY(0);transform-origin:center;transition:transform .45s cubic-bezier(.16,1,.3,1);
}
.na-item.is-active{background:var(--na-surface)}
.na-item.is-active::before{transform:scaleY(1)}
.na-item:hover{background:var(--na-surface)}

.na-idx{
  font-family:var(--na-mono);font-size:12px;font-weight:700;color:var(--na-grey-dim);
  padding-top:4px;transition:color .35s;
}
.na-item.is-active .na-idx{color:var(--na-wine)}
.na-item h3{font-size:19px;text-transform:uppercase;font-weight:600;margin-bottom:8px}
.na-item p{
  color:var(--na-grey);font-size:15px;line-height:1.58;
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height .5s cubic-bezier(.16,1,.3,1),opacity .4s ease;
}
.na-item.is-active p{max-height:180px;opacity:1}
@media(max-width:1000px){
  .na-item p{max-height:none;opacity:1}   /* always readable on narrow screens */
}

/* ===================== reveal ===================== */
.na-rv{
  opacity:0;transform:translateY(22px);
  transition:opacity .85s cubic-bezier(.16,1,.3,1),transform .85s cubic-bezier(.16,1,.3,1);
}
.na-rv.is-in{opacity:1;transform:none}

@media(prefers-reduced-motion:reduce){
  .na-arch *{animation:none!important;transition:none!important}
  .na-rv{opacity:1;transform:none}
  .na-pin{opacity:1}
  .na-item p{max-height:none;opacity:1}
}
.na-arch :focus-visible{outline:2px solid var(--na-wine-bright);outline-offset:3px}