:root{--g:#183F32;--g2:#0f2b22;--gold:#c9a45c;--cream:#f7f1e6;--ink:#1d1a17;--mute:#6a645c}
*{box-sizing:border-box;margin:0}html{scroll-behavior:smooth}
body{font:16px/1.65 system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans Bengali","Noto Sans",sans-serif;color:var(--ink);background:#fff}
img{max-width:100%;display:block}a{color:inherit}
h1,h2,h3{font-family:Georgia,"Times New Roman",serif;font-weight:400;line-height:1.15;letter-spacing:-.01em}
h1{font-size:clamp(2.1rem,7vw,4.2rem)}h2{font-size:clamp(1.65rem,4.6vw,2.7rem);margin-bottom:.6rem}
.nav{position:fixed;inset:0 0 auto;z-index:20;display:flex;align-items:center;gap:1rem;padding:.7rem 1rem;background:rgba(15,43,34,.92);backdrop-filter:blur(8px);color:#fff}
.brand{display:flex;gap:.6rem;align-items:center;text-decoration:none;font-weight:700;letter-spacing:.08em;margin-right:auto}
.brand small{display:block;font-weight:400;font-size:.62rem;letter-spacing:.18em;text-transform:uppercase;opacity:.8}
.mark{width:34px;height:34px;border:1px solid var(--gold);border-radius:50%;display:grid;place-items:center;font-family:Georgia,serif;color:var(--gold)}
.nav nav{display:none;gap:1.3rem;font-size:.92rem}.nav nav a{text-decoration:none;opacity:.9}.nav nav a:hover{color:var(--gold)}
.nav nav.open{display:flex;flex-direction:column;position:absolute;top:100%;left:0;right:0;background:var(--g2);padding:1rem}
.burger{background:none;border:0;color:#fff;font-size:1.5rem;min-width:44px;min-height:44px}
.btn{display:inline-block;padding:.85rem 1.4rem;border-radius:999px;text-decoration:none;font-weight:600;border:1px solid transparent;cursor:pointer;font:inherit;font-weight:600;min-height:44px}
.btn-gold{background:var(--gold);color:#1d1508}.btn-gold:hover{background:#d8b672}.btn-ghost{border-color:#fff;color:#fff}.sm{padding:.5rem 1rem;font-size:.85rem;min-height:auto}
.hero{position:relative;min-height:min(100svh,820px);display:flex;flex-direction:column;justify-content:flex-end;color:#fff;overflow:hidden}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,43,34,.35),rgba(15,43,34,.88))}
.hero-in{position:relative;padding:6rem 1.2rem 1.5rem;max-width:900px}
.eyebrow{text-transform:uppercase;letter-spacing:.18em;font-size:.72rem;color:var(--gold);margin-bottom:.8rem}.eyebrow.ink{color:#8a6a28}
.assamese{font-size:1.15rem;color:var(--gold);margin:.8rem 0}.lead{max-width:36rem;opacity:.95;margin-bottom:1.4rem}
.cta{display:flex;flex-wrap:wrap;gap:.7rem}
.trust{position:relative;list-style:none;padding:1rem 1.2rem 1.4rem;display:grid;grid-template-columns:1fr 1fr;gap:.9rem;border-top:1px solid rgba(255,255,255,.2);margin-top:1.5rem}
.trust b{display:block;font:400 1.7rem Georgia,serif;color:var(--gold)}.trust span{font-size:.78rem;opacity:.85}
.sec{padding:4rem 1.2rem}.wrap{max-width:1120px;margin:auto}.narrow{max-width:680px}.cream{background:var(--cream)}.dark{background:var(--g);color:#fff}
.sub{color:var(--mute);margin-bottom:1.6rem;max-width:40rem}.dark .sub{color:#cfe0d8}
.two{display:grid;gap:2rem;align-items:center}.round{border-radius:20px;width:100%;aspect-ratio:4/3;object-fit:cover}
.ticks{list-style:none;padding:0;margin-top:1rem}.ticks li{padding-left:1.7rem;position:relative;margin:.5rem 0}.ticks li:before{content:"✓";position:absolute;left:0;color:#8a6a28;font-weight:700}
.filters{display:flex;gap:.5rem;overflow-x:auto;padding-bottom:.5rem;margin-bottom:1.2rem}
.filters button{white-space:nowrap;background:transparent;border:1px solid rgba(255,255,255,.4);color:inherit;border-radius:999px;padding:.55rem 1.1rem;font:inherit;cursor:pointer;min-height:44px}
.filters button.on{background:var(--gold);color:#1d1508;border-color:var(--gold)}
.pal button{border-color:#c9bfa9;color:var(--ink)}
.grid{columns:1;column-gap:.8rem}.grid figure{break-inside:avoid;margin:0 0 .8rem;position:relative;border-radius:14px;overflow:hidden;cursor:zoom-in}
.grid img{width:100%;transition:transform .5s}.grid figure:hover img{transform:scale(1.04)}
.grid figcaption{position:absolute;inset:auto 0 0;padding:1.6rem .9rem .7rem;font-size:.82rem;background:linear-gradient(transparent,rgba(0,0,0,.7))}
.cards{display:grid;gap:1rem}.card{border:1px solid #e6dfd0;border-radius:18px;padding:1.4rem;background:#fff}
.card.big{background:var(--g);color:#fff}.card h3{font-size:1.35rem;margin-bottom:.4rem}.card p{color:var(--mute);margin-bottom:.8rem}.card.big p{color:#d3e3db}
.card a{font-weight:600;color:#8a6a28;text-decoration:none}.card.big a{color:var(--gold)}
.steps{list-style:none;padding:0;display:grid;gap:1.4rem;margin-top:1.5rem}.steps img{border-radius:16px;aspect-ratio:4/3;object-fit:cover;width:100%;margin-bottom:.7rem}.steps p{color:var(--mute)}
.pal-view{display:grid;gap:1.2rem;align-items:center}.pal-view img{border-radius:20px;width:100%;aspect-ratio:4/3;object-fit:cover}.pal-view h3{font-size:1.7rem;margin-bottom:.4rem}.pal-view p{margin-bottom:1rem;color:var(--mute)}
.contact{margin-top:1rem;font-size:1.1rem}.contact a{color:#8a6a28;font-weight:600}
.quotes{display:grid;gap:1rem;margin-top:1.4rem}blockquote{background:var(--cream);border-radius:18px;padding:1.4rem;font-family:Georgia,serif;font-size:1.1rem;line-height:1.5}
cite{display:block;margin-top:.8rem;font:normal .85rem system-ui;color:var(--mute)}.note{font-size:.78rem;color:var(--mute);margin-top:1rem}
details{border-bottom:1px solid #d8cfba;padding:1rem 0}summary{cursor:pointer;font-weight:600;min-height:44px;display:flex;align-items:center}details p{color:var(--mute);padding-bottom:.5rem}
form{display:grid;gap:1rem;margin-top:1rem}label{display:grid;gap:.35rem;font-size:.88rem;color:#d3e3db}
input,select,textarea{font:inherit;padding:.8rem;border-radius:10px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);color:#fff;width:100%}
select option{color:#000}.alt{text-align:center;font-size:.9rem}.alt a{color:var(--gold)}
footer{background:var(--g2);color:#cfe0d8;padding:2.5rem 1.2rem 6rem;font-size:.9rem}.fgrid{display:grid;gap:1.2rem}footer b{color:#fff;font-size:1.1rem}footer a{text-decoration:none}
.draft{max-width:1120px;margin:1.5rem auto 0;font-size:.75rem;opacity:.6}
.wa{position:fixed;right:14px;bottom:14px;z-index:30;background:#25D366;color:#062b13;font-weight:700;text-decoration:none;padding:.8rem 1.1rem;border-radius:999px;box-shadow:0 6px 20px rgba(0,0,0,.3)}
.lb{display:none;position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.92);place-items:center;padding:1rem}.lb.on{display:grid}.lb img{max-height:92vh;border-radius:8px}
@media(min-width:760px){.nav nav{display:flex}.burger{display:none}.grid{columns:2}.two{grid-template-columns:1fr 1fr}.cards{grid-template-columns:repeat(3,1fr)}.card.big{grid-column:span 3}.steps{grid-template-columns:repeat(4,1fr)}.pal-view{grid-template-columns:1.3fr 1fr}.quotes{grid-template-columns:1fr 1fr}.trust{grid-template-columns:repeat(3,1fr);padding:1.2rem 3rem 1.6rem}.hero-in{padding:7rem 3rem 1rem}.sec{padding:6rem 3rem}.fgrid{grid-template-columns:2fr 1fr}}
@media(min-width:1100px){.grid{columns:3}}
/* office-first */
.office{position:relative;background:var(--g2);color:#fff}
.viewer{position:relative;height:min(100svh,820px);min-height:560px;overflow:hidden;touch-action:pan-y;cursor:grab;user-select:none;-webkit-user-select:none;outline:none}
.viewer.drag{cursor:grabbing}
.track{position:absolute;inset:0;display:flex;width:300%;transition:transform .6s cubic-bezier(.2,.7,.2,1);will-change:transform}
.viewer.drag .track{transition:none}
.slide{flex:0 0 33.3333%;position:relative;height:100%;overflow:hidden;margin:0}
.slide img{position:absolute;inset:-4%;width:108%;height:108%;max-width:none;object-fit:cover;transition:transform .25s ease-out;transform:translate(var(--px,0),var(--py,0)) scale(1.02);pointer-events:none}
.slide figcaption{position:absolute;right:1.2rem;top:5rem;text-align:right;font-size:.8rem;opacity:.9;max-width:14rem;text-shadow:0 1px 6px rgba(0,0,0,.6)}
.slide figcaption b{display:block;color:var(--gold);letter-spacing:.14em;text-transform:uppercase;font-size:.7rem}
.vshade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,43,34,.55),rgba(15,43,34,.15) 35%,rgba(15,43,34,.9));pointer-events:none}
.vin{position:absolute;left:0;right:0;bottom:4.2rem;padding:0 1.2rem;max-width:900px;pointer-events:none}.vin a{pointer-events:auto}
.vin h1{font-size:clamp(2rem,6.4vw,4rem)}
.vctl{position:absolute;right:1rem;bottom:1rem;display:flex;align-items:center;gap:.5rem;font-size:.85rem}
.vctl button{width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.5);background:rgba(15,43,34,.55);color:#fff;font-size:1.3rem;cursor:pointer}
.vhint{position:absolute;left:1.2rem;bottom:1.1rem;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;opacity:.85;transition:opacity .5s}
.vnote{position:absolute;left:1.2rem;bottom:2.5rem;font-size:.7rem;opacity:.7}
.office .trust{margin-top:0;border-top:0}
.vsteps{list-style:none;padding:0;display:grid;gap:1rem;margin:1.5rem 0 1.8rem}.vsteps li{display:flex;gap:1rem;align-items:flex-start;background:#fff;border-radius:16px;padding:1.1rem}
.vsteps b{flex:0 0 38px;height:38px;border-radius:50%;background:var(--g);color:var(--gold);display:grid;place-items:center;font-family:Georgia,serif}
.vsteps h3{font-size:1.2rem;margin-bottom:.15rem}.vsteps p{color:var(--mute)}.orcall{margin-left:.8rem;color:var(--mute)}.orcall a{color:#8a6a28;font-weight:600}
.stage3d{position:relative;height:min(62svh,520px);min-height:340px;border-radius:20px;overflow:hidden;background:radial-gradient(ellipse at 50% 30%,#2a5a49,#0f2b22);margin:1rem 0}
#c3d{width:100%;height:100%;display:block;touch-action:pan-y;cursor:grab}
.s3note{position:absolute;left:1rem;bottom:.7rem;font-size:.7rem;opacity:.75;pointer-events:none}
.s3-fallback{position:absolute;inset:0;display:grid;place-items:center;padding:2rem;text-align:center}
.s3tabs{display:grid;grid-template-columns:1fr 1fr;gap:.5rem}.s3tabs button{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.35);border-radius:12px;padding:.8rem;font:inherit;text-align:left;cursor:pointer;min-height:48px}
.s3tabs button b{color:var(--gold);margin-right:.4rem}.s3tabs button.on{background:var(--gold);color:#1d1508;border-color:var(--gold)}.s3tabs button.on b{color:#1d1508}
.s3text{margin-top:1rem;max-width:40rem}.s3text h3{font-size:1.5rem;margin-bottom:.3rem}.s3text p{color:#cfe0d8}
.lb.on{display:grid}
@media(min-width:760px){.vsteps{grid-template-columns:repeat(3,1fr)}.s3tabs{grid-template-columns:repeat(4,1fr)}.vin{padding:0 3rem;bottom:5rem}.vctl{right:3rem;bottom:1.4rem}.vhint,.vnote{left:3rem}.slide figcaption{right:3rem}}
.slide img{object-position:62% 50%}
@media(max-width:759px){
 .vin{bottom:8.2rem}
 .vctl{left:1.2rem;right:auto;bottom:3.3rem}
 .vhint{display:none}
 .vnote{bottom:1rem;max-width:62%}
 .slide figcaption{top:4.6rem}
}
.s3-fallback[hidden]{display:none}
.slide img{object-position:60% 80%}.vshade{background:linear-gradient(180deg,rgba(15,43,34,.45),rgba(15,43,34,.05) 30%,rgba(15,43,34,.85))}