/* Corva-inspired enhancements — remove this file + link to rollback visuals only */

/* Hero slide 1 — industrial cooling diagram + airflow */
.hero-slide-bg--hvac3d{
  background:
    radial-gradient(ellipse 55% 50% at 78% 55%, rgba(34,211,238,.16) 0%, transparent 60%),
    radial-gradient(ellipse 40% 45% at 70% 40%, rgba(59,130,246,.12) 0%, transparent 55%),
    radial-gradient(ellipse 50% 50% at 18% 40%, rgba(26,75,140,.32) 0%, transparent 55%),
    linear-gradient(155deg,#03070e 0%,#0a1628 42%,#0b1c32 100%);
  overflow:hidden;
}
.hero-hvac-vignette{
  position:absolute;inset:0;pointer-events:none;z-index:1;
  background:
    linear-gradient(90deg,rgba(3,7,14,.88) 0%,rgba(3,7,14,.4) 26%,rgba(3,7,14,.06) 58%,rgba(3,7,14,.08) 78%,rgba(3,7,14,.3) 100%),
    radial-gradient(ellipse 70% 80% at 74% 55%,transparent 40%,rgba(3,7,14,.35) 100%);
}
.hero-hvac-grid{
  position:absolute;inset:0;z-index:0;
  background:
    linear-gradient(rgba(34,211,238,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34,211,238,.08) 1px, transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse 68% 62% at 74% 58%,#000 8%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 68% 62% at 74% 58%,#000 8%,transparent 75%);
  opacity:.85;
  animation:heroGridDrift 12s linear infinite;
}
@keyframes heroGridDrift{
  from{background-position:0 0,0 0;}
  to{background-position:0 48px,48px 0;}
}
@keyframes heroGridPulse{
  0%,100%{opacity:.75;}
  50%{opacity:.95;}
}
.hero-hvac-canvas{
  position:absolute;inset:0;width:100%;height:100%;z-index:2;
  pointer-events:none;
}

/* Refrigeration cycle diagram — center band between copy and climate strip */
.hero-refrig{
  position:absolute;z-index:2;pointer-events:none;
  left:clamp(34%, 38vw, 42%);
  right:268px;
  top:50%;
  transform:translateY(-46%);
  width:auto;
  max-width:none;
  opacity:0;
  transition:opacity .45s ease;
}
.hero-slide.active .hero-refrig,
.hero-refrig.is-active{
  opacity:1;
}
.hero-refrig-svg{
  width:100%;height:auto;display:block;
  filter:drop-shadow(0 12px 40px rgba(2,6,23,.35));
}
/* Electrical panel — blends into dark hero like other slides */
.hero-refrig--panel{
  left:clamp(30%, 34vw, 38%);
  right:240px;
  top:50%;
  transform:translateY(-48%);
}
.hero-electrical-panel{
  width:100%;
  height:auto;
  display:block;
  max-height:min(78vh,620px);
  object-fit:contain;
  border-radius:0;
  background:transparent;
  /* Soft dissolve into hero — no hard pasted rectangle */
  -webkit-mask-image:radial-gradient(ellipse 78% 72% at 50% 48%, #000 42%, rgba(0,0,0,.85) 62%, transparent 86%);
  mask-image:radial-gradient(ellipse 78% 72% at 50% 48%, #000 42%, rgba(0,0,0,.85) 62%, transparent 86%);
  filter:
    drop-shadow(0 0 28px rgba(34,211,238,.18))
    drop-shadow(0 18px 50px rgba(2,6,23,.55))
    saturate(1.05) contrast(1.04);
  opacity:.96;
  animation:heroPanelFloat 7s ease-in-out infinite;
}
@keyframes heroPanelFloat{
  0%,100%{transform:translateY(0);}
  50%{transform:translateY(-6px);}
}
@media (prefers-reduced-motion:reduce){
  .hero-electrical-panel{animation:none;}
}
.rf-panel{
  fill:rgba(7,18,36,.42);
  stroke:rgba(148,163,184,.28);
  stroke-width:2;
}
.rf-title{
  fill:#f8fafc;font-family:'Oswald',Arial,sans-serif;font-size:18px;font-weight:700;
  letter-spacing:.06em;
}
.rf-zone{
  font-family:'Oswald',Arial,sans-serif;font-size:20px;font-weight:700;letter-spacing:.04em;
}
.rf-zone--cool{fill:#7dd3fc;}
.rf-zone--hot{fill:#fdba74;}
.rf-side{
  font-family:'Oswald',Arial,sans-serif;font-size:15px;font-weight:700;letter-spacing:.14em;
}
.rf-side--cool{fill:#67e8f9;}
.rf-side--hot{fill:#fb923c;}
.rf-chip-text{
  fill:#e2e8f0;font-family:'Oswald',Arial,sans-serif;font-size:13px;font-weight:700;
  letter-spacing:.05em;
}
.rf-pipe{
  fill:none;stroke-width:18;stroke-linecap:round;stroke-linejoin:round;opacity:.9;
}
.rf-flow{
  fill:none;stroke-width:4;stroke-linecap:round;stroke-dasharray:14 22;
  opacity:.95;
}
.rf-flow--cool{stroke:#e0f2fe;}
.rf-flow--hot{stroke:#ffedd5;}
.hero-slide.active .rf-flow--cool,
.hero-refrig.is-active .rf-flow--cool{
  animation:rfFlowCool 2.4s linear infinite;
}
.hero-slide.active .rf-flow--hot,
.hero-refrig.is-active .rf-flow--hot{
  animation:rfFlowHot 2.4s linear infinite;
}
@keyframes rfFlowCool{
  to{stroke-dashoffset:-72;}
}
@keyframes rfFlowHot{
  to{stroke-dashoffset:-72;}
}
.hero-slide.active .rf-waves--cool path,
.hero-refrig.is-active .rf-waves--cool path{
  animation:rfWaveCool 1.8s ease-in-out infinite;
}
.hero-slide.active .rf-waves--hot path,
.hero-refrig.is-active .rf-waves--hot path{
  animation:rfWaveHot 1.8s ease-in-out infinite;
}
.rf-waves--cool path:nth-child(2),
.rf-waves--hot path:nth-child(2){animation-delay:.2s;}
.rf-waves--cool path:nth-child(3),
.rf-waves--hot path:nth-child(3){animation-delay:.4s;}
.rf-waves--cool path:nth-child(4),
.rf-waves--hot path:nth-child(4){animation-delay:.6s;}
@keyframes rfWaveCool{
  0%,100%{transform:translateX(0);opacity:.55;}
  50%{transform:translateX(-8px);opacity:1;}
}
@keyframes rfWaveHot{
  0%,100%{transform:translateX(0);opacity:.55;}
  50%{transform:translateX(8px);opacity:1;}
}
.hero-slide.active .rf-snow circle,
.hero-refrig.is-active .rf-snow circle{
  animation:rfPulse 2s ease-in-out infinite;
}
.hero-slide.active .rf-heat circle,
.hero-refrig.is-active .rf-heat circle{
  animation:rfPulse 2s ease-in-out infinite;
}
.rf-snow circle:nth-child(2),.rf-heat circle:nth-child(2){animation-delay:.25s;}
.rf-snow circle:nth-child(3),.rf-heat circle:nth-child(3){animation-delay:.5s;}
.rf-snow circle:nth-child(4),.rf-heat circle:nth-child(4){animation-delay:.75s;}
@keyframes rfPulse{
  0%,100%{opacity:.4;transform:scale(.85);}
  50%{opacity:1;transform:scale(1.15);}
}

@media (max-width:1100px){
  .hero-refrig{
    left:32%;
    right:220px;
  }
}
@media (max-width:860px){
  .hero-refrig{
    left:5%;
    right:5%;
    top:62%;
    transform:translateY(-40%);
    opacity:.55;
  }
  .hero-slide.active .hero-refrig{opacity:.7;}
}

.hero-platform{
  display:inline-block;margin-bottom:12px;padding:6px 14px;
  background:rgba(26,75,140,.35);border:1px solid rgba(255,255,255,.25);
  border-radius:999px;font-size:11px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:#93c5fd;
}

.stats-bar.corva-stats .stat-n{font-size:clamp(36px,5vw,52px);}
.stats-bar.corva-stats .stat-l{font-size:12px;letter-spacing:.14em;}

.clients-strip{
  background:#fff;padding:28px 5%;border-bottom:1px solid rgba(0,0,0,.06);
}
.clients-strip-inner{max-width:1180px;margin:0 auto;text-align:center;}
.clients-strip p{
  font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.14em;
  color:var(--gray);margin-bottom:16px;
}
.clients-logos{
  display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:16px 28px;
}
.client-pill{
  padding:10px 18px;background:var(--lgray);border-radius:4px;
  font-family:'Oswald',sans-serif;font-size:13px;font-weight:600;
  text-transform:uppercase;letter-spacing:.06em;color:var(--dark);
  border:1px solid rgba(0,0,0,.06);transition:transform .2s,box-shadow .2s;
}
.client-pill:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.08);}
.client-pill-logo{padding:14px 24px;background:#fff;}
.client-pill-logo img{height:56px;width:auto;max-width:200px;object-fit:contain;display:block;}

.platform-pillars{
  background:var(--dark);padding:80px 5%;color:#fff;
}
.platform-pillars .s-label{color:#4ade80;}
.platform-pillars .s-title{color:#fff;}
.platform-pillars .s-desc{color:rgba(255,255,255,.65);}
.pillars-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:40px;
}
.pillar-card{
  background:rgba(255,255,255,.06);padding:28px 22px;border-radius:4px;
  border-top:3px solid var(--blue);transition:background .25s,transform .25s;
}
.pillar-card:hover{background:rgba(255,255,255,.1);transform:translateY(-4px);}
.pillar-card:nth-child(2){border-top-color:#4ade80;}
.pillar-card:nth-child(3){border-top-color:var(--red);}
.pillar-card:nth-child(4){border-top-color:#60a5fa;}
.pillar-num{
  font-family:'Oswald',sans-serif;font-size:11px;font-weight:700;
  letter-spacing:.12em;color:rgba(255,255,255,.4);margin-bottom:12px;
}
.pillar-card h3{
  font-family:'Oswald',sans-serif;font-size:18px;text-transform:uppercase;
  margin-bottom:10px;letter-spacing:.04em;
}
.pillar-card p{font-size:14px;line-height:1.75;color:rgba(255,255,255,.7);}

.impact-section{
  background:linear-gradient(135deg,var(--blue) 0%,var(--green3) 100%);
  padding:64px 5%;color:#fff;
}
.impact-grid{
  max-width:1180px;margin:0 auto;
  display:grid;grid-template-columns:repeat(3,1fr);gap:32px;text-align:center;
}
.impact-item strong{
  display:block;font-family:'Oswald',sans-serif;font-size:clamp(40px,6vw,56px);
  line-height:1;margin-bottom:8px;
}
.impact-item span{font-size:13px;opacity:.85;text-transform:uppercase;letter-spacing:.08em;}
.impact-item p{font-size:13px;opacity:.7;margin-top:10px;line-height:1.6;}

.case-studies-section{background:#fff;padding:80px 5%;}
.case-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:36px;
}
.case-card{
  background:var(--lgray);border-radius:4px;overflow:hidden;
  box-shadow:0 8px 28px rgba(0,0,0,.08);transition:transform .25s,box-shadow .25s;
  display:flex;flex-direction:column;
}
.case-card:hover{transform:translateY(-6px);box-shadow:0 16px 40px rgba(0,0,0,.12);}
.case-card-img{height:180px;overflow:hidden;position:relative;}
.case-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s;}
.case-card:hover .case-card-img img{transform:scale(1.06);}
.case-metric{
  position:absolute;bottom:12px;left:12px;padding:8px 12px;
  background:rgba(15,61,34,.92);color:#4ade80;border-radius:3px;
  font-family:'Oswald',sans-serif;font-size:18px;font-weight:700;
}
.case-card-body{padding:22px 22px 26px;flex:1;display:flex;flex-direction:column;}
.case-tag{
  font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.1em;
  color:var(--blue);margin-bottom:8px;
}
.case-card-body h3{
  font-family:'Oswald',sans-serif;font-size:17px;text-transform:uppercase;
  margin-bottom:10px;line-height:1.25;
}
.case-card-body p{font-size:13px;color:var(--gray);line-height:1.7;flex:1;margin-bottom:16px;}
.case-link{
  font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;
  color:var(--red);text-decoration:none;
}
.case-link:hover{text-decoration:underline;}

.demo-cta{
  background:var(--green3);padding:72px 5%;text-align:center;color:#fff;
  position:relative;overflow:hidden;
}
.demo-cta::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(circle at 80% 20%,rgba(26,75,140,.4),transparent 55%);
  pointer-events:none;
}
.demo-cta-inner{max-width:640px;margin:0 auto;position:relative;z-index:1;}
.demo-cta .s-label{color:#4ade80;justify-content:center;}
.demo-cta .s-label::before{display:none;}
.demo-cta h2{
  font-family:'Oswald',sans-serif;font-size:clamp(28px,4vw,42px);
  text-transform:uppercase;margin:12px 0 16px;line-height:1.15;
}
.demo-cta p{color:rgba(255,255,255,.75);line-height:1.85;margin-bottom:28px;font-size:15px;}
.demo-cta-btns{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
.btn-demo{
  display:inline-block;padding:14px 28px;background:var(--red);color:#fff;
  font-weight:700;font-size:13px;text-transform:uppercase;letter-spacing:.08em;
  border-radius:3px;text-decoration:none;transition:background .2s,transform .2s;
}
.btn-demo:hover{background:#b91c1c;transform:translateY(-2px);}
.btn-demo-outline{
  display:inline-block;padding:14px 28px;border:2px solid rgba(255,255,255,.5);
  color:#fff;font-weight:700;font-size:13px;text-transform:uppercase;
  letter-spacing:.08em;border-radius:3px;text-decoration:none;transition:all .2s;
}
.btn-demo-outline:hover{background:rgba(255,255,255,.1);border-color:#fff;}

.sticky-cta{
  position:fixed;bottom:90px;right:24px;z-index:250;
  padding:12px 18px;background:var(--blue);color:#fff;border-radius:4px;
  font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;
  box-shadow:0 8px 24px rgba(26,75,140,.4);text-decoration:none;
  opacity:0;transform:translateY(12px);transition:opacity .3s,transform .3s;
  pointer-events:none;
}
.sticky-cta.visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.sticky-cta:hover{background:var(--blue2);color:#fff;}

/* Homepage video */
.video-section{
  padding:80px 5%;background:var(--lgray);
  border-top:1px solid rgba(0,0,0,.06);
}
.video-section .s-desc{max-width:560px;margin-bottom:28px;}
.video-player-wrap{
  max-width:960px;margin:0 auto;
  border-radius:12px;overflow:hidden;
  box-shadow:0 16px 48px rgba(0,0,0,.18);
  background:#0a1628;
  border:1px solid rgba(0,0,0,.08);
  position:relative;
  min-height:min(72vh,520px);
  display:flex;align-items:center;justify-content:center;
  aspect-ratio:16/10;
}
.video-player-wrap--featured{
  background:linear-gradient(135deg,#0a1628,#1a4b8c 55%,#0a1628);
}
.video-player-wrap--featured::after{
  content:'';position:absolute;inset:0;pointer-events:none;z-index:1;
  background:linear-gradient(180deg,rgba(255,255,255,.04),transparent 35%,rgba(0,0,0,.12));
}
.video-player-frame{
  position:relative;z-index:2;
  height:min(68vh,500px);
  width:auto;aspect-ratio:9/16;
  border-radius:8px;overflow:hidden;
  box-shadow:0 20px 50px rgba(0,0,0,.45);
  border:2px solid rgba(255,255,255,.12);
  background:#000;
}
.video-player{
  display:block;width:100%;height:100%;
  object-fit:cover;object-position:center;
  vertical-align:middle;background:#000;
}
.video-fallback{
  padding:32px 24px;text-align:center;color:var(--gray);
  font-size:14px;line-height:1.7;margin:0;
}
.video-fallback code{
  font-size:12px;background:#fff;padding:2px 6px;border-radius:4px;
}

@media(max-width:1100px){
  .case-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:960px){
  .pillars-grid{grid-template-columns:1fr 1fr;}
  .impact-grid{grid-template-columns:1fr;}
}
@media(max-width:600px){
  .pillars-grid{grid-template-columns:1fr;}
  .case-grid{grid-template-columns:1fr;}
  .sticky-cta{bottom:78px;right:14px;font-size:11px;padding:10px 14px;}
  .video-player-wrap{aspect-ratio:auto;min-height:360px;padding:12px 0;}
  .video-player-frame{height:min(58vh,400px);max-width:92vw;}
  .demo-cta-btns{flex-direction:column;align-items:stretch;}
  .btn-demo,.btn-demo-outline{text-align:center;width:100%;}
}