:root{--navy:#082B55;--ice:#159BE8;--cyan:#43D9F5;--mist:#F0F8FF}
html{scroll-padding-top:90px}
.btn-call{display:inline-flex;align-items:center;gap:.5rem;height:44px;padding:0 1.1rem;border-radius:999px;background:var(--navy);color:#fff;font-weight:700;position:relative;overflow:hidden;transition:transform .2s,background .2s}
.btn-call::after{content:"";position:absolute;inset:0;border-radius:inherit;box-shadow:0 0 0 0 rgba(21,155,232,.6);animation:ring 2.4s infinite}
.btn-call:hover{background:var(--ice);transform:translateY(-2px)}
@keyframes ring{70%{box-shadow:0 0 0 12px rgba(21,155,232,0)}100%{box-shadow:0 0 0 0 rgba(21,155,232,0)}}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.6rem;padding:.9rem 1.5rem;border-radius:999px;font-weight:700;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-3px);box-shadow:0 12px 24px -10px rgba(8,43,85,.5)}
.btn-sm{display:inline-flex;align-items:center;gap:.4rem;padding:.55rem 1rem;border-radius:999px;font-size:.875rem;font-weight:600;transition:all .2s}
.float-btn{height:56px;width:56px;display:grid;place-items:center;border-radius:999px;color:#fff;font-size:1.5rem;box-shadow:0 10px 25px -8px rgba(8,43,85,.6);transition:transform .2s}
.float-btn:hover{transform:scale(1.1)}
.svc{background:#fff;border-radius:1.5rem;overflow:hidden;border:1px solid #dbeefc;box-shadow:0 10px 30px -18px rgba(8,43,85,.4);transition:transform .3s,box-shadow .3s}
.svc:hover{transform:translateY(-8px);box-shadow:0 24px 40px -20px rgba(21,155,232,.55)}
.svc-img{position:relative;aspect-ratio:10/7;overflow:hidden;background:var(--mist)}
.svc-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.svc:hover .svc-img img{transform:scale(1.08)}
.svc-icon{position:absolute;left:1rem;bottom:1rem;height:46px;width:46px;display:grid;place-items:center;border-radius:14px;background:var(--navy);color:var(--cyan);font-size:1.15rem}
.hero-bg{background:radial-gradient(900px 500px at 85% 20%,rgba(67,217,245,.35),transparent 60%),linear-gradient(135deg,#F0F8FF 0%,#dff1ff 55%,#c7e8fb 100%)}
.flake{position:absolute;top:-20px;color:#fff;text-shadow:0 0 6px rgba(21,155,232,.5);animation:fall linear infinite;pointer-events:none;user-select:none}
@keyframes fall{to{transform:translate3d(var(--dx,30px),110vh,0) rotate(360deg)}}
.air path{stroke-dasharray:14 22;animation:flow 2.2s linear infinite}
.air path:nth-child(2){animation-duration:3s}.air path:nth-child(3){animation-duration:2.6s}
@keyframes flow{to{stroke-dashoffset:-72}}
.float-y{animation:floaty 5s ease-in-out infinite}
@keyframes floaty{50%{transform:translateY(-14px)}}
.why-card{background:#fff;border:1px solid #dbeefc;border-radius:1.25rem;padding:1.75rem;transition:all .3s}
.why-card:hover{background:var(--navy);color:#cfe9fb;transform:translateY(-6px)}
.why-card:hover h3{color:#fff}.why-card:hover .why-ico{background:var(--cyan);color:var(--navy)}
.why-ico{height:56px;width:56px;display:grid;place-items:center;border-radius:16px;background:var(--mist);color:var(--ice);font-size:1.4rem;transition:all .3s}
.gal{position:relative;overflow:hidden;border-radius:1.25rem;cursor:zoom-in;display:block;width:100%;background:var(--mist)}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.gal:hover img{transform:scale(1.1)}
.gal span{position:absolute;inset:auto 0 0 0;padding:2rem 1rem .8rem;background:linear-gradient(transparent,rgba(8,43,85,.85));color:#fff;font-weight:600;text-align:left;opacity:0;transform:translateY(8px);transition:all .3s}
.gal:hover span,.gal:focus-visible span{opacity:1;transform:none}
#lightbox{position:fixed;inset:0;z-index:100;background:rgba(4,20,40,.92);display:none;align-items:center;justify-content:center;padding:1rem}
#lightbox.open{display:flex}
#lightbox img{max-height:85vh;max-width:95vw;border-radius:1rem}
.field{width:100%;padding:.85rem 1rem;border-radius:.9rem;border:1px solid #cfe5f6;background:#fff;transition:border .2s,box-shadow .2s}
.field:focus{outline:none;border-color:var(--ice);box-shadow:0 0 0 4px rgba(21,155,232,.15)}
.reveal-img{clip-path:inset(0 100% 0 0);transition:clip-path 1s cubic-bezier(.7,0,.2,1)}
.reveal-img.in{clip-path:inset(0 0 0 0)}
:focus-visible{outline:3px solid var(--cyan);outline-offset:2px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal-img{clip-path:none}}

.hero-photo{background:linear-gradient(100deg,rgba(8,43,85,.95) 0%,rgba(8,43,85,.82) 45%,rgba(8,43,85,.45) 100%),url(../img/cool-air-hvca-service-banner-1774-887.png) center/cover no-repeat}
.home-parallax{background-image:url(../img/ac-repairing-services-850-565.jpg);background-position:center 45%;background-size:cover;background-attachment:fixed}
.prob{display:flex;align-items:center;gap:.75rem;width:100%;text-align:left;padding:.9rem 1.1rem;border-radius:1rem;border:1px solid rgba(255,255,255,.15);color:#cfe9fb;font-weight:600;transition:all .2s}
.prob:hover{background:rgba(255,255,255,.08)}
.prob.on{background:#fff;color:var(--navy);border-color:#fff;transform:translateX(8px)}
.prob i{width:1.5rem;text-align:center;color:var(--cyan)}.prob.on i{color:var(--ice)}
@media(max-width:1023px){.prob.on{transform:none}}
@media(max-width:767px),(prefers-reduced-motion:reduce){.home-parallax{background-attachment:scroll}}