/* ===== MOTION LAYER (prototype) ===== */
:root{--ease:cubic-bezier(.2,.7,.1,1)}
/* Reveal on scroll */
.rv{opacity:0;transform:translateY(28px);transition:opacity .9s var(--ease),transform .9s var(--ease);transition-delay:calc(var(--i,0)*90ms)}
.rv.in{opacity:1;transform:none}
.split .w{display:inline-block;vertical-align:top;padding-bottom:.08em;clip-path:inset(-.3em -.3em 0 -.3em)}
.split .w>span{display:inline-block;transform:translateY(105%);transition:transform 1s var(--ease);transition-delay:calc(var(--i,0)*55ms)}
.split.in .w>span{transform:none}
/* Hero wordmark rise */
.hero-word span{display:inline-block;opacity:0;transform:translateY(40%);filter:blur(8px);animation:rise 1.4s var(--ease) forwards;animation-delay:calc(var(--i)*70ms + .15s)}
@keyframes rise{to{opacity:1;transform:none;filter:none}}
.horizon{will-change:transform}
/* Cursor */
.cur,.cur-dot{position:fixed;left:0;top:0;pointer-events:none;z-index:300;border-radius:50%;transform:translate(-50%,-50%);opacity:0;transition:opacity .3s}
.cur-on .cur,.cur-on .cur-dot{opacity:1}
.cur{width:34px;height:34px;border:1px solid rgba(214,234,255,.6);transition:opacity .3s,width .3s var(--ease),height .3s var(--ease),background .3s,border-color .3s;mix-blend-mode:difference}
.cur-dot{width:5px;height:5px;background:var(--brand-hi)}
.cur.hot{width:64px;height:64px;background:rgba(214,234,255,.12);border-color:var(--brand-hi)}
.cur .lbl{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font:500 .6rem var(--ui);letter-spacing:.06em;text-transform:uppercase;color:var(--white);opacity:0;transition:opacity .2s}
.cur.drag{width:84px;height:84px;background:rgba(45,212,191,.15)}
.cur.drag .lbl{opacity:1}
html.has-cur,html.has-cur *{cursor:none!important}
/* Magnetic buttons + shine */
.btn{position:relative;overflow:hidden;transition:background .2s,transform .35s var(--ease)}
.btn::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.35) 50%,transparent 70%);transform:translateX(-120%);transition:transform .7s var(--ease)}
.btn:hover::after{transform:translateX(120%)}
.nav-links a{position:relative}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:1px;background:var(--brand-hi);transform:scaleX(0);transform-origin:right;transition:transform .4s var(--ease)}
.nav-links a:hover::after{transform:scaleX(1);transform-origin:left}
nav.stuck{position:fixed;background:rgba(5,7,11,.7);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);padding-top:1rem;padding-bottom:1rem;border-bottom:1px solid var(--line);animation:navIn .5s var(--ease)}
@keyframes navIn{from{transform:translateY(-100%)}}
/* Problem list hover */
.problem-list li{position:relative;transition:padding .4s var(--ease),opacity .9s var(--ease),transform .9s var(--ease)}
.problem-list li::before{content:"";position:absolute;left:0;bottom:-1px;height:1px;width:100%;background:var(--brand-hi);transform:scaleX(0);transform-origin:left;transition:transform .6s var(--ease)}
.problem-list li:hover{padding-left:.8rem}
.problem-list li:hover::before{transform:scaleX(1)}
/* Spotlight cards */
.spot{position:relative;isolation:isolate}
.spot::before{content:"";position:absolute;inset:0;z-index:-1;opacity:0;transition:opacity .3s;background:radial-gradient(320px circle at var(--mx,50%) var(--my,50%),rgba(45,212,191,.13),transparent 60%)}
@media(hover:hover){.spot:hover::before{opacity:1}}
/* ===== HOW: sticky scrollytelling ===== */
.how-story{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(2rem,5vw,4rem);margin-top:3rem}
.how-stage{position:sticky;top:12vh;height:76vh;border:1px solid var(--line);background:rgba(5,7,11,.45);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);overflow:hidden}
.how-stage svg{width:100%;height:100%;display:block}
.how-stage .stage-lbl{position:absolute;left:1.2rem;top:1rem;font:.8rem var(--ui);text-transform:uppercase;letter-spacing:.05em;color:var(--brand-hi)}
.how-stage .stage-bar{position:absolute;left:0;bottom:0;height:2px;background:var(--brand-hi);width:calc(var(--p,0)*100%)}
.how-story .steps{display:block;background:none;border:0;margin:0}
.how-story .steps li{min-height:62vh;display:flex;flex-direction:column;justify-content:center;background:none;backdrop-filter:none;-webkit-backdrop-filter:none;padding:0 0 0 1.6rem;border-left:1px solid var(--line);opacity:.28;transition:opacity .5s,border-color .5s}
.how-story .steps li.on{opacity:1;border-left-color:var(--brand-hi)}
.how-story .steps .num{transition:color .5s}
.how-story .steps li.on .num{color:var(--brand-hi)}
/* ===== ROADMAP draw ===== */
.roadmap{position:relative}
.roadmap li{position:relative}
.roadmap::before,.roadmap::after{content:"";position:absolute;left:0;right:0;top:0;height:1px}
.roadmap::before{background:rgba(214,234,255,.18)}
.roadmap::after{background:linear-gradient(90deg,var(--brand-hi),rgba(45,212,191,.2));transform:scaleX(var(--p,0));transform-origin:left}
/* On one row the track replaces each item's top border; stacked rows keep their own dividers */
@media(min-width:861px){.roadmap li{border-top-color:transparent}}
.roadmap li.is-now::before{content:"";position:absolute;left:0;top:-5px;width:10px;height:10px;border-radius:50%;background:var(--brand-hi);box-shadow:0 0 0 0 rgba(45,212,191,.6);animation:ping 2s infinite}
@keyframes ping{70%{box-shadow:0 0 0 14px rgba(45,212,191,0)}100%{box-shadow:0 0 0 0 rgba(45,212,191,0)}}
/* ===== VEHICLE 3D ===== */
.vehicle{position:relative;padding-bottom:0}
.vehicle-wrap{position:relative;height:200vh}
.vehicle-pin{position:sticky;top:0;height:100vh;display:grid;grid-template-columns:1fr 1.4fr;align-items:center;gap:2rem;max-width:1180px;margin:0 auto}
.vehicle canvas{width:100%!important;height:80vh!important;display:block}
.v-mode{display:flex;gap:.5rem;margin-top:1.8rem}
.v-mode button{cursor:pointer;background:none;border-radius:999px;font:.85rem var(--ui);text-transform:uppercase;letter-spacing:.04em;padding:.35rem .7rem;border:1px solid var(--line);color:var(--muted);transition:all .4s}
.v-mode button.on{color:#cfe0ff;border-color:rgba(45,212,191,.7);background:rgba(45,212,191,.1)}
.v-specs{margin-top:2rem;list-style:none;border-top:1px solid var(--line)}
.v-specs li{display:flex;justify-content:space-between;padding:.8rem 0;border-bottom:1px solid var(--line);font-size:.92rem;font-weight:300;color:var(--muted)}
.v-specs b{font-weight:400;color:var(--white)}
.v-hint{position:absolute;right:0;bottom:8vh;font:.75rem var(--ui);text-transform:uppercase;letter-spacing:.06em;color:rgba(214,234,255,.7)}
@media(max-width:860px){.how-story{grid-template-columns:1fr}.how-stage{top:9vh;height:42vh;z-index:2}.how-story .steps li{min-height:50vh}.vehicle-pin{grid-template-columns:1fr;align-content:center}.vehicle canvas{height:50vh!important}}
@media(prefers-reduced-motion:reduce){.rv,.split .w>span,.hero-word span{opacity:1!important;transform:none!important;filter:none!important;animation:none!important}.how-story .steps li{opacity:1}.cur,.cur-dot{display:none}}

.v-stage{position:relative}
.v-stage::before{content:"";position:absolute;inset:-10%;z-index:-1;pointer-events:none;background:radial-gradient(closest-side,rgba(45,212,191,calc(.06 + var(--e,0)*.22)),transparent 70%),radial-gradient(60% 30% at 50% 70%,rgba(47,111,224,calc(var(--e,0)*.25)),transparent 70%);transition:background .2s}
.no3d .v-stage canvas,.no3d .v-stage .v-hint,.no3d .v-interactive,.no3d .v-mode{display:none}
.no3d .v-stage img{display:block;width:min(78%,520px);height:auto;margin:8vh auto}
/* Mobile pass */
html,body{overflow-x:clip}
@media(hover:none){.v-hint,.v-interactive{display:none}}
@media(max-width:640px){
  :root{--navh:108px}
  .v-stage::before{inset:0}
  .vehicle-wrap{height:170vh}
  .vehicle-pin{display:flex;flex-direction:column;justify-content:flex-start;gap:.6rem;padding-top:calc(var(--navh,96px) + .5rem);height:100svh;height:100vh}
  .vehicle-pin .v-stage{order:-1;width:100%}
  .vehicle canvas{height:38vh!important}
  .vehicle-pin .section-h{font-size:clamp(1.7rem,8vw,2.2rem)}
  .vehicle-pin .section-p{font-size:.95rem;margin-top:.4rem}
  .vehicle-pin ul{margin-top:.6rem}
  .vehicle-pin ul li{padding:.55rem 0}
  .how-stage{top:calc(var(--navh,96px) + .5rem);height:44vh;background:#05070b;backdrop-filter:none;-webkit-backdrop-filter:none}
  .how-story .steps li{min-height:72vh;justify-content:flex-end;padding-bottom:8vh;opacity:0}
  .how-story .steps li.on{opacity:1}
  .no3d .v-stage img{margin:2vh auto}
}
@media(max-width:640px) and (prefers-reduced-motion:reduce){.how-story .steps li{opacity:1}}

/* Polish pass */
.how{background:radial-gradient(70% 45% at 50% 62%,rgba(45,212,191,.07),transparent 70%),linear-gradient(180deg,var(--void) 0%,#071423 30%,#06202c 70%,var(--void) 100%)}
.how-stage{border-radius:16px;background:#05070b;backdrop-filter:none;-webkit-backdrop-filter:none;box-shadow:0 30px 80px -40px rgba(0,0,0,.8),inset 0 0 0 1px rgba(214,234,255,.04)}
.how-stage .stage-lbl{top:1.1rem;left:1.3rem;padding:.25rem .6rem;border-radius:999px;background:rgba(5,7,11,.6);border:1px solid rgba(45,212,191,.25)}
.how-stage .stage-bar{left:16px;right:16px;width:auto;transform-origin:left;transform:scaleX(var(--p,0));border-radius:2px}
.how-story .steps li{border-left-width:2px}
.v-mode button:hover{color:var(--white);border-color:rgba(214,234,255,.35)}
.v-mode button:focus-visible{outline:2px solid var(--brand-hi);outline-offset:3px}
.v-mode button.on{color:#e6fffb}
.v-hint{padding:.3rem .7rem;border:1px solid var(--line);border-radius:999px}
/* Review fixes: touch, tap targets, clipping */
#drone3d{touch-action:pan-y}
.v-mode button{min-height:44px;padding:0 1rem}
.no3d .v-stage img{aspect-ratio:500/231}
@media(max-width:640px){
  .nav-links a{display:inline-flex;align-items:center;min-height:44px;margin:-11px 0}
  .nav-cta.btn{min-height:44px;display:inline-flex;align-items:center}
  .vehicle-wrap{height:170svh}
  .vehicle-pin{height:100svh}
  .vehicle canvas{height:36svh!important}
  .how-stage{height:44svh}
  .how-story .steps li{min-height:72svh}
}
/* Phones and tablets: the steps sit pinned under the picture and swap with it, so the
   label, the drone and the words always match (scrolling text fell out of step). */
@media(max-width:860px){
  .how-story{--st:9vh;--sh:42vh;display:block;min-height:calc(var(--sh) + 240svh)}
  .how-stage{top:var(--st);height:var(--sh)}
  .how-story .steps{position:sticky;top:calc(var(--st) + var(--sh) + 1.2rem);display:grid;margin-top:1.2rem}
  .how-story .steps li{grid-area:1/1;min-height:0;justify-content:flex-start;padding:0 0 0 1.2rem;opacity:0;transition:opacity .4s}
  .how-story .steps li.on{opacity:1}
}
@media(max-width:640px){.how-story{--st:calc(var(--navh,96px) + .5rem);--sh:44svh}}