/* USL Group — "liquid glass" theme layer. Loaded after site.css.
   Sky-blue light backgrounds, frosted translucent cards, soft depth; USL yellow stays for the main buttons. */
:root{
  --bg:#f3f8fd; --surface:rgba(255,255,255,.62); --ink:#0f2a40; --muted:#4c6579; --line:rgba(13,59,102,.13);
  --steel:#0d3b66; --steel-2:#14558f; --on-steel:#eaf3fb; --on-steel-muted:#a9c6de;
  --blue:#1f6fb2; --blue-2:#2f8fdc; --navy:#0d3b66; --sky:#d7eafa; --rust:#1f6fb2;
  --r:20px;
  --glass:rgba(255,255,255,.58); --glass-strong:rgba(255,255,255,.78); --glass-edge:rgba(255,255,255,.85);
  --blur:saturate(1.6) blur(18px);
  --shadow:0 24px 50px -28px rgba(13,59,102,.45),0 2px 6px -2px rgba(13,59,102,.08);
  --glass-shadow:0 28px 60px -32px rgba(13,59,102,.5),inset 0 1px 0 rgba(255,255,255,.95),inset 0 -1px 0 rgba(255,255,255,.35);
}
body{background:#f3f8fd;color:var(--ink)}
/* soft sky behind every page, with slowly drifting light */
body::before{content:"";position:fixed;inset:-20vh -20vw;z-index:-2;pointer-events:none;
  background:
    radial-gradient(38vw 38vw at 12% 8%,rgba(122,190,240,.45),transparent 62%),
    radial-gradient(34vw 34vw at 88% 30%,rgba(160,212,250,.5),transparent 60%),
    radial-gradient(40vw 40vw at 40% 95%,rgba(196,226,252,.55),transparent 62%),
    linear-gradient(180deg,#f5faff 0%,#e8f2fb 50%,#f4f9fe 100%);
  animation:sky 40s ease-in-out infinite alternate}
@keyframes sky{to{transform:translate3d(-4vw,3vh,0) scale(1.06)}}

/* reusable glass surfaces */
.glass,.svc,.quote,.cert,.faq details,.card-form,.mv-card:not(.dark),.doc,.access-card,.feat-card,.news-item,.person,.client,.size,.counter,.chip,.cmp,.table-scroll{
  background:var(--glass);-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);
  border:1px solid var(--glass-edge);box-shadow:var(--glass-shadow)}
.glass-strong{background:var(--glass-strong);-webkit-backdrop-filter:var(--blur);backdrop-filter:var(--blur);border:1px solid var(--glass-edge);box-shadow:var(--glass-shadow);border-radius:24px}
@supports not ((backdrop-filter:blur(2px)) or (-webkit-backdrop-filter:blur(2px))){
  .glass,.glass-strong,.svc,.quote,.cert,.faq details,.card-form,.doc,.access-card,.feat-card,.news-item,.client,.counter{background:rgba(255,255,255,.92)}
}
/* lift on hover */
.svc,.quote,.cert,.doc,.client,.layout-card,.feat-item,.mv-card,.person,.news-item{transition:transform .45s cubic-bezier(.2,.7,.2,1),box-shadow .45s}
@media (hover:hover){
  .svc:hover,.quote:hover,.cert:hover,.doc:hover,.layout-card:hover,.mv-card:hover,.person:hover,.news-item:hover{transform:translateY(-6px);box-shadow:0 40px 70px -36px rgba(13,59,102,.55),inset 0 1px 0 #fff}
}
img.img-fail{opacity:0}

/* type and accents */
.eyebrow{color:var(--blue)}
em.hl{color:var(--blue);background:linear-gradient(transparent 64%,rgba(242,183,5,.55) 0);padding:0 .06em;font-style:normal}
.hero em.hl,.page-hero em.hl{color:var(--blue);background:linear-gradient(transparent 64%,rgba(242,183,5,.55) 0)}
.on-dark em.hl,.est em.hl{color:var(--signal);background:none}
.btn-dark{background:var(--navy);border-color:var(--navy)}
.btn-ghost{border-color:rgba(13,59,102,.35);color:var(--navy);background:rgba(255,255,255,.45);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.link-arrow,.link{color:var(--blue)}

/* header */
.topbar{background:linear-gradient(90deg,#0d3b66,#14558f);color:#cfe3f4}
.site-header{background:rgba(255,255,255,.62);-webkit-backdrop-filter:saturate(1.8) blur(20px);backdrop-filter:saturate(1.8) blur(20px);border-bottom:1px solid rgba(255,255,255,.8);box-shadow:0 1px 0 rgba(13,59,102,.06)}
.menu a[aria-current]{background:var(--navy);color:#fff}
.langs{background:rgba(255,255,255,.55);border:1px solid var(--glass-edge)}
.burger{background:var(--navy)}
.drawer{background:rgba(255,255,255,.9);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}

/* ---------- hero: bright sky with the photo in a glass frame ---------- */
.hero{background:linear-gradient(160deg,#eef7ff 0%,#d8ebfb 48%,#bcdcf5 100%);color:var(--ink);height:clamp(600px,86vh,800px)}
.hero-orbs span{position:absolute;border-radius:50%;filter:blur(2px);z-index:-1;background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.95),rgba(255,255,255,.15) 60%,transparent 70%);animation:orb 14s ease-in-out infinite alternate}
.hero-orbs span:nth-child(1){width:220px;height:220px;left:-60px;top:12%}
.hero-orbs span:nth-child(2){width:120px;height:120px;left:38%;bottom:10%;animation-duration:11s}
.hero-orbs span:nth-child(3){width:300px;height:300px;right:-90px;top:-80px;animation-duration:18s}
@keyframes orb{to{transform:translate3d(30px,-24px,0) scale(1.08)}}
.slide-bg{inset:auto;top:8%;bottom:16%;right:max(20px,calc((100vw - 1240px)/2 + 20px));width:min(54%,700px);border-radius:32px;overflow:hidden;z-index:0;
  border:1px solid rgba(255,255,255,.9);box-shadow:0 50px 90px -40px rgba(13,59,102,.6),0 0 0 10px rgba(255,255,255,.28);background:linear-gradient(135deg,#9cc8ea,#5f9fd3)}
.slide-bg::after{background:linear-gradient(135deg,rgba(255,255,255,.28) 0%,transparent 32%),linear-gradient(0deg,rgba(13,59,102,.25),transparent 35%)}
.slide-in{position:relative;z-index:1}
.slide-in>*{max-width:min(42%,540px)}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:120px;z-index:-1;background:linear-gradient(180deg,rgba(243,248,253,0),#f3f8fd)}
.slider-ui{bottom:84px}
.slide-title{font-size:clamp(2.5rem,4.6vw,4.5rem);color:var(--navy)}
.slide-sub{color:var(--muted)}
.slide .btn-ghost-light{border-color:rgba(13,59,102,.35);color:var(--navy);background:rgba(255,255,255,.5);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.dot span{background:rgba(13,59,102,.18)}
.arrow{border-color:var(--glass-edge);background:rgba(255,255,255,.55);color:var(--navy);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}
.slide.is-active .slide-bg img{animation:kenburns var(--kb,12s) ease-out forwards}
@media (max-width:900px){
  .hero{height:auto;min-height:0}
  .hero .slide{position:absolute}
  .hero .slide.is-active{position:relative}
  .slide-bg{top:16px;bottom:auto;left:16px;right:16px;width:auto;height:min(42vh,320px);border-radius:24px;box-shadow:0 30px 60px -30px rgba(13,59,102,.55),0 0 0 6px rgba(255,255,255,.3)}
  .slide-in{justify-content:flex-start;padding-top:calc(min(42vh,320px) + 40px);padding-bottom:110px;gap:16px}
  .slide-in>*{max-width:100%}
  .slider-ui{bottom:56px}
  .slide-title{font-size:clamp(2.2rem,9.5vw,3.2rem)}
}

/* counters become glass cards that overlap the hero */
.counters{background:none;color:var(--ink);position:relative;z-index:2;margin-top:-58px}
.counters-in{padding-block:0 10px;gap:16px}
.counter{border-left:0;border-radius:22px;padding:20px 24px;gap:2px}
.counter b{color:var(--navy)}
.counter span{color:var(--muted)}
@media (max-width:900px){.counters{margin-top:-36px}}
@media (max-width:640px){.counters-in{grid-template-columns:repeat(3,1fr);gap:8px}.counter:last-child:nth-child(odd){grid-column:auto}.counter{padding:14px 12px;border-radius:18px}.counter b{font-size:2.1rem}.counter span{font-size:.8rem;line-height:1.25}}

/* round icon highlights */
.features{padding-block:clamp(36px,5vw,56px) 0}
.feat-strip{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:14px}
.feat-item{display:grid;justify-items:center;text-align:center;gap:6px;padding:18px 12px;border-radius:22px}
.feat-ic{width:74px;height:74px;border-radius:50%;display:grid;place-items:center;margin-bottom:6px;color:#fff;
  background:radial-gradient(circle at 30% 25%,#5fb0f0 0%,#1f6fb2 55%,#0d3b66 100%);
  box-shadow:0 18px 30px -16px rgba(13,59,102,.8),inset 0 2px 0 rgba(255,255,255,.55),inset 0 -6px 12px rgba(0,0,0,.18),0 0 0 6px rgba(255,255,255,.65)}
.feat-ic .ic{width:32px;height:32px}
.feat-item b{font:700 1.15rem/1.1 var(--font-display);text-transform:uppercase;letter-spacing:.02em;color:var(--navy)}
.lang-hi .feat-item b,.lang-bn .feat-item b{text-transform:none}
.feat-item>span:last-child{color:var(--muted);font-size:.9rem;line-height:1.4}
@media (hover:hover){.feat-item:hover .feat-ic{transform:translateY(-4px) rotate(-6deg)}.feat-ic{transition:transform .4s cubic-bezier(.2,.7,.2,1)}}
@media (max-width:640px){.feat-strip{grid-template-columns:1fr 1fr}.feat-item:last-child:nth-child(odd){grid-column:span 2}.feat-ic{width:62px;height:62px}}

/* services */
.svc{border-radius:24px}
.svc-img{background:linear-gradient(135deg,#9cc8ea,#5f9fd3);margin:8px 8px 0;border-radius:18px}
.svc .more{background:var(--navy);color:#fff}

/* layout options + ideal for */
.layouts-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:22px;align-items:start}
.layout-cards{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.layout-card{position:relative;border-radius:24px;padding:10px;display:grid;gap:10px}
.layout-art{border-radius:18px;background:linear-gradient(180deg,#e8f4ff 0%,#cfe5f8 70%,#bfd9ee 100%);aspect-ratio:16/9;display:grid;place-items:center;overflow:hidden;padding:12px}
.layout-art img{width:100%;height:100%;object-fit:cover;border-radius:12px}
.cabin-svg{width:100%;height:100%;max-height:100%}
.layout-txt{display:flex;justify-content:space-between;align-items:baseline;gap:10px;padding:2px 8px 8px}
.layout-txt b{font:700 1.15rem/1.15 var(--font-display);text-transform:uppercase;color:var(--navy)}
.lang-hi .layout-txt b,.lang-bn .layout-txt b{text-transform:none}
.layout-txt .mono{font-size:.82rem;color:var(--muted);white-space:nowrap}
.layout-ask{position:absolute;top:18px;right:18px;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:rgba(255,255,255,.75);color:var(--wa);border:1px solid #fff;box-shadow:0 10px 20px -12px rgba(13,59,102,.6);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px)}
.layout-ask .ic{width:22px;height:22px}
.ideal{padding:24px;position:sticky;top:100px}
.ideal h3{font-size:1.6rem;color:var(--navy);margin-bottom:14px}
.ideal ul{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:10px}
.ideal li{display:flex;align-items:center;gap:12px;font-weight:500}
.ideal-ic{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;flex:none;color:var(--blue);background:linear-gradient(180deg,#fff,#e2f0fc);border:1px solid #fff;box-shadow:0 8px 16px -10px rgba(13,59,102,.5)}
.ideal-ic .ic{width:21px;height:21px}
.ideal .btn{width:100%}
@media (max-width:980px){.layouts-grid{grid-template-columns:1fr}.ideal{position:static}}
@media (max-width:560px){.layout-cards{grid-template-columns:1fr}}

/* why: photo collage with floating glass frames */
.why-art{position:relative;padding:0 6% 8% 0}
.why-img{border-radius:28px;box-shadow:0 50px 80px -40px rgba(13,59,102,.55);background:linear-gradient(135deg,#9cc8ea,#5f9fd3)}
.why-img::after{display:none}
.why-float{position:absolute;width:44%;aspect-ratio:4/3;border-radius:20px;padding:6px;overflow:hidden;animation:floaty 7s ease-in-out infinite}
.why-float img{width:100%;height:100%;object-fit:cover;border-radius:15px;background:linear-gradient(135deg,#9cc8ea,#5f9fd3)}
.why-f1{right:0;top:12%}
.why-f2{left:-4%;bottom:0;animation-delay:-3.5s}
.why-badge{position:absolute;right:4%;bottom:4%;display:flex;gap:10px;align-items:center;padding:12px 16px;border-radius:18px;color:var(--navy)}
.why-badge .ic{width:30px;height:30px;color:var(--blue)}
.why-badge b{display:block;font:700 1.1rem/1 var(--font-display)}
.why-badge small{font:500 .72rem var(--font-mono);color:var(--muted)}
@keyframes floaty{50%{transform:translateY(-12px)}}
.tick{background:linear-gradient(180deg,#2f8fdc,#1f6fb2);color:#fff;box-shadow:0 8px 16px -8px rgba(31,111,178,.8)}
@media (max-width:900px){.why-img{aspect-ratio:4/3}.why-float{width:40%}}

/* bands */
.sec-alt{background:linear-gradient(180deg,rgba(255,255,255,.45),rgba(255,255,255,.2));border-block:1px solid rgba(255,255,255,.8)}
.client span{color:var(--navy)}
.cert{border-top:0;border-radius:24px}
.cert-ic{background:linear-gradient(180deg,#2f8fdc,#1f6fb2)!important;color:#fff!important}
.quote::before{color:rgba(31,111,178,.15)}
.chip[aria-pressed=true]{background:var(--navy);border-color:var(--navy)}
.steps li{border-top-color:rgba(13,59,102,.15)}
.steps li::before{color:var(--blue)}
.faq details{border-radius:18px}

/* estimator: deep blue glass */
.est{background:radial-gradient(60vw 40vw at 85% 0%,rgba(95,176,240,.35),transparent 60%),linear-gradient(135deg,#0b3257 0%,#0d3b66 40%,#1f6fb2 100%);position:relative;overflow:hidden}
.est-result{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);border-radius:24px;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 30px 60px -30px rgba(0,0,0,.5)}
.seg label{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.25)}
.qty button{background:rgba(255,255,255,.08)}

/* inner page headers: light, photo fades in from the right */
.page-hero{background:linear-gradient(160deg,#eef7ff 0%,#d8ebfb 55%,#c4e0f6 100%);color:var(--ink)}
.page-hero-bg img{animation:kenburns 14s ease-out forwards}
.page-hero-bg::after{background:linear-gradient(90deg,rgba(238,247,255,.98) 0%,rgba(232,244,255,.9) 38%,rgba(220,237,251,.35) 72%,rgba(220,237,251,.1) 100%)}
.page-hero:not(.has-img)::before{opacity:.25}
.page-hero h1{color:var(--navy)}
.page-hero .lead{color:var(--muted)}
.crumb a{color:var(--blue)}
@media (max-width:700px){.page-hero-bg::after{background:linear-gradient(180deg,rgba(238,247,255,.7) 0%,rgba(232,244,255,.93) 55%,rgba(232,244,255,.98) 100%)}}

/* forms */
.enq input,.enq select,.enq textarea{background:rgba(255,255,255,.75);border-color:rgba(13,59,102,.18);border-radius:14px}
.card-form{border-radius:26px}

/* CTA band + footer */
.cta-band{background:linear-gradient(90deg,#f2b705,#ffcf3d)}
.site-footer{background:radial-gradient(50vw 30vw at 10% 0%,rgba(95,176,240,.25),transparent 60%),linear-gradient(180deg,#0d3b66,#082a49)}
.site-footer .contact-list .ic{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18)}
@media (max-width:640px){
  .callbar{background:rgba(13,59,102,.82);-webkit-backdrop-filter:saturate(1.6) blur(16px);backdrop-filter:saturate(1.6) blur(16px);border-top:1px solid rgba(255,255,255,.2)}
}

/* scroll-in: rise and un-blur */
.js .reveal{transform:translateY(26px);filter:blur(6px);transition:opacity .9s cubic-bezier(.2,.7,.2,1) calc(var(--d,0)*90ms),transform .9s cubic-bezier(.2,.7,.2,1) calc(var(--d,0)*90ms),filter .9s calc(var(--d,0)*90ms)}
.js .reveal.in{transform:none;filter:none}

@media (prefers-reduced-motion:reduce){
  body::before,.hero-orbs span,.why-float{animation:none}
  .js .reveal{filter:none}
}

/* documents access panel */
.access .consent{display:block!important;font-size:.82rem;color:var(--muted);font-weight:400!important;margin:4px 0 0}
.access-card button.link{background:none;border:0;padding:0;margin-top:8px;cursor:pointer;font:500 .9rem var(--font-body);color:var(--blue)}
.access-need{border-left:4px solid var(--signal)}
.access-card .btn{margin-top:10px}
.access-card .form-ok{color:#1d5e38;font-size:.9rem;margin:8px 0}
.tag-open{background:#e3f4ea;color:#1d5e38}

/* Document preview pop-up */
html.pv-open{overflow:hidden}
.pv{position:fixed;inset:0;z-index:400;display:flex;flex-direction:column;background:rgba(10,24,40,.78);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);-webkit-user-select:none;user-select:none}
.pv-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:10px 16px;background:rgba(255,255,255,.92);color:#13202A;box-shadow:0 6px 24px -12px rgba(0,0,0,.5)}
.pv-title{font-weight:700;flex:1 1 200px;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pv-count{color:#55636D;font-size:14px}
.pv-tools{display:flex;align-items:center;gap:8px}
.pv-btn{width:38px;height:38px;border-radius:50%;border:1px solid #c9d6e2;background:#fff;color:#13202A;font-size:22px;line-height:1;cursor:pointer;display:grid;place-items:center}
.pv-btn:hover{background:#eef5fb}
.pv-zoom{min-width:48px;text-align:center;font-size:14px;color:#55636D}
.pv-pages{flex:1;overflow:auto;padding:16px 12px 40px;display:flex;flex-direction:column;align-items:center;gap:16px;-webkit-overflow-scrolling:touch}
.pv-page{display:block;max-width:none;background:#fff;border-radius:6px;box-shadow:0 18px 40px -18px rgba(0,0,0,.6);pointer-events:none}
.pv-status{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);margin:0;padding:12px 18px;border-radius:12px;background:rgba(255,255,255,.95);color:#13202A;font-weight:600;text-align:center;max-width:90vw}
@media (max-width:600px){.pv-bar{padding:8px 10px;gap:8px}.pv-title{flex-basis:100%;font-size:15px}.pv-tools{margin-left:auto}}
@media print{.pv{display:none!important}}