/* ===== অর্থlab v61 — design & motion layer (loads last; same green / red / ivory theme) ===== */
:root{--g:#073f33;--g2:#0b5444;--g3:#0f6a56;--r:#bd263e;--iv:#f7f3e9;--iv2:#efe9d8;--ink2:#0c2a20;--mint:#9fd8c0;--rose:#ff9aa7;
 --ease:cubic-bezier(.22,.8,.24,1);--wrap:1240px}
html{scroll-behavior:smooth}
body{background:var(--iv)}
::selection{background:var(--r);color:#fff}

/* ---------- header ---------- */
header{position:sticky;top:0;z-index:60;max-width:none!important;width:100%;margin:0!important;padding:14px max(24px,calc((100vw - var(--wrap))/2 + 46px))!important;background:rgba(247,243,233,.86);-webkit-backdrop-filter:saturate(1.4) blur(14px);backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid rgba(7,63,51,.1)!important;transition:box-shadow .3s}
header.is-scrolled{box-shadow:0 8px 30px rgba(7,63,51,.09)}
header .brand img{height:38px;width:auto}
header nav a{position:relative;font-weight:600}
header nav a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--r);transform:scaleX(0);transform-origin:left;transition:transform .35s var(--ease)}
header nav a:hover::after,header nav a[aria-current]::after{transform:scaleX(1)}
main{max-width:none!important;margin:0!important}

/* ---------- hero: animated stage ---------- */
.hero{position:relative;max-width:none!important;margin:0!important;overflow:hidden;background:radial-gradient(900px 600px at 82% 12%,#0d5c49 0%,#073f33 55%,#06322a 100%)!important;padding:clamp(48px,7vw,96px) max(24px,calc((100vw - var(--wrap))/2 + 46px)) clamp(56px,7vw,92px)!important;grid-template-columns:1.05fr .95fr!important;gap:clamp(28px,5vw,72px)!important;align-items:center}
.hero>.visual{display:none!important}
.hero h1{font-size:clamp(42px,5.6vw,80px)!important;line-height:1.02!important;letter-spacing:-.025em!important}
.hero h1 em{color:var(--rose)!important}
.hero .intro{max-width:520px!important;font-size:clamp(15px,1.25vw,17.5px)!important;line-height:1.7!important}
.hero .cta{background:var(--r)!important;border-radius:999px!important;padding:17px 28px!important;font-weight:700;box-shadow:0 10px 30px rgba(189,38,62,.4);transition:transform .25s var(--ease),box-shadow .25s}
.hero .cta:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(189,38,62,.5)}
.hero-ctas{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:20px}
.hero-ctas .cta{margin:0!important}
.ghost{display:inline-flex;align-items:center;gap:8px;color:#e9f4ee;text-decoration:none;font-size:14px;font-weight:600;padding:16px 4px;border-bottom:1px solid transparent}
.ghost:hover{border-color:currentColor}
.hero-note{color:#a9cdbd!important}

.v61-stage{position:relative;width:100%;max-width:560px;margin-left:auto;aspect-ratio:560/640;border-radius:999px 999px 18px 18px;box-shadow:0 40px 90px rgba(0,0,0,.35);isolation:isolate}
.v61-stage>svg{position:absolute;inset:0;width:100%;height:100%;border-radius:inherit;overflow:hidden;background:linear-gradient(#0e5a47,#073f33 70%);box-shadow:inset 0 0 0 1px rgba(159,216,192,.18)}
.v61-sun{transform-origin:280px 250px;animation:sunrise 2.6s var(--ease) both,sunbreath 7s 2.6s ease-in-out infinite}
@keyframes sunrise{from{transform:translateY(190px) scale(.9);opacity:0}to{transform:none;opacity:1}}
@keyframes sunbreath{50%{transform:translateY(-8px) scale(1.025)}}
.v61-ring{transform-origin:280px 250px;animation:ring 5s ease-out infinite;opacity:0}
.v61-ring.b{animation-delay:1.7s}.v61-ring.c{animation-delay:3.4s}
@keyframes ring{0%{transform:scale(.8);opacity:.5}100%{transform:scale(1.9);opacity:0}}
.wv{animation:wave 14s linear infinite}
.wv.w2{animation-duration:10s;animation-direction:reverse}
.wv.w3{animation-duration:7s}
@keyframes wave{to{transform:translateX(-560px)}}
.v61-boat{animation:boat 16s linear infinite}
@keyframes boat{0%{transform:translate(-120px,0)}50%{transform:translate(300px,-6px)}100%{transform:translate(720px,0)}}
.v61-boat g{animation:bob 2.6s ease-in-out infinite;transform-box:fill-box;transform-origin:center}
@keyframes bob{50%{transform:translateY(-5px) rotate(-2deg)}}
.v61-stars circle{animation:tw 3s ease-in-out infinite}
.v61-stars circle:nth-child(2n){animation-delay:1s}.v61-stars circle:nth-child(3n){animation-delay:2s}
@keyframes tw{50%{opacity:.15}}
.chip{position:absolute;z-index:3;background:rgba(247,243,233,.96);color:var(--ink2);border-radius:14px;padding:13px 16px;box-shadow:0 18px 40px rgba(0,0,0,.28);min-width:132px;opacity:0;animation:chipin .8s var(--ease) forwards,float 6s ease-in-out infinite}
.chip b{display:block;font:700 clamp(22px,2.5vw,30px)/1 'DM Serif Display',serif;color:var(--g)}
.chip small{display:block;margin-top:5px;font:600 10px/1.35 'DM Sans',sans-serif;letter-spacing:.06em;text-transform:uppercase;color:#5a7065}
.chip i{position:absolute;top:12px;right:12px;width:8px;height:8px;border-radius:50%;background:var(--r);box-shadow:0 0 0 0 rgba(189,38,62,.6);animation:ping 2s infinite}
.chip.c1{left:-4%;top:46%;animation-delay:1.4s,1.4s}
.chip.c2{right:-3%;top:30%;animation-delay:1.9s,2.2s}
.chip.c3{left:12%;bottom:11%;animation-delay:2.4s,3s}
@keyframes chipin{from{opacity:0;transform:translateY(24px) scale(.94)}to{opacity:1;transform:none}}
@keyframes float{50%{transform:translateY(-9px)}}
@keyframes ping{70%{box-shadow:0 0 0 10px rgba(189,38,62,0)}100%{box-shadow:0 0 0 0 rgba(189,38,62,0)}}
.stage-cap{position:absolute;z-index:3;left:0;right:0;bottom:22px;text-align:center;color:#d7ece2;font:600 11px/1.4 'DM Sans',sans-serif;letter-spacing:.2em;text-transform:uppercase}
.stage-cap span{display:block;font:400 italic 17px 'DM Serif Display',serif;letter-spacing:0;text-transform:none;color:#fff;margin-bottom:3px}

/* ---------- ticker ---------- */
.v61-ticker{background:var(--r);color:#fff;overflow:hidden;white-space:nowrap;border-block:1px solid rgba(0,0,0,.12)}
.v61-ticker div{display:inline-flex;gap:0;animation:tick 48s linear infinite;padding:13px 0}
.v61-ticker:hover div{animation-play-state:paused}
.v61-ticker span{font:600 13px 'DM Sans',sans-serif;letter-spacing:.04em;padding:0 30px;display:inline-flex;align-items:center;gap:30px}
.v61-ticker span::after{content:"";width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.55)}
.v61-ticker b{font-weight:800;margin-right:6px}
@keyframes tick{to{transform:translateX(-50%)}}

/* ---------- edition strip ---------- */
.edition{max-width:var(--wrap);margin:0 auto!important;padding:16px 46px!important;border:0!important;color:var(--muted)}

/* ---------- section rhythm ---------- */
.section,.mission{position:relative}
main>.section{max-width:var(--wrap);margin-inline:auto;padding:clamp(56px,7vw,110px) clamp(20px,4vw,46px)!important}
.section-heading h2,.sim-heading h2,.data-lab-heading h2,.owners-heading h2,#how h2{font-size:clamp(32px,4.2vw,56px)!important;line-height:1.06!important;letter-spacing:-.02em!important}
.eyebrow{display:inline-flex;align-items:center;gap:12px;color:var(--r)}
.eyebrow::before{content:"";width:28px;height:2px;background:currentColor;border-radius:2px;transform-origin:left;animation:grow 1s var(--ease) both}
@keyframes grow{from{transform:scaleX(0)}}
.mission .eyebrow,.global-hero .eyebrow,.hero .eyebrow{color:var(--rose)}
.hero .eyebrow .dot{display:none}

/* reveal system */
.rv{opacity:0;transform:translateY(34px);transition:opacity .9s var(--ease),transform .9s var(--ease);transition-delay:var(--d,0ms)}
.rv.in{opacity:1;transform:none}

/* ---------- how it works ---------- */
#how{max-width:var(--wrap);margin:0 auto;padding:clamp(56px,7vw,110px) clamp(20px,4vw,46px)}
#how .hd{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:end;margin-bottom:44px}
#how .hd p{color:#4a6559;font-size:16px;max-width:440px;margin:0}
.how-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:stretch}
.lens-board{position:relative;background:var(--g);color:var(--iv);border-radius:22px;padding:30px;overflow:hidden;min-height:430px;display:flex;flex-direction:column;justify-content:space-between}
.lens-board::before{content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;background:var(--r);opacity:.9}
.lens-head{position:relative;z-index:1;display:flex;justify-content:center;text-align:center}
.lens-head .hl{background:#fff;color:var(--ink2);border-radius:12px;padding:14px 18px;font:700 clamp(18px,2vw,24px)/1.2 'DM Serif Display',serif;box-shadow:0 14px 34px rgba(0,0,0,.25)}
.lens-head small{font:600 10px 'DM Sans';letter-spacing:.16em;color:#bfe4d2;text-transform:uppercase;display:block;margin-bottom:6px}
.lens-wires{position:relative;z-index:1;height:54px;margin:0}
.lens-wires svg{width:100%;height:100%;overflow:visible}
.lens-wires path{vector-effect:non-scaling-stroke;fill:none;stroke:var(--mint);stroke-width:2;stroke-linecap:round;stroke-dasharray:1;stroke-dashoffset:1}
.in .lens-wires path{animation:draw 1.2s var(--ease) forwards}
.in .lens-wires path:nth-child(2){animation-delay:.12s}.in .lens-wires path:nth-child(3){animation-delay:.24s}.in .lens-wires path:nth-child(4){animation-delay:.36s}
@keyframes draw{to{stroke-dashoffset:0}}
.lens-tabs{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.lens-tabs button{background:rgba(255,255,255,.08);border:1px solid rgba(159,216,192,.3);color:#e9f4ee;border-radius:12px;padding:14px 8px;font:600 13px 'DM Sans',sans-serif;display:grid;gap:7px;justify-items:center;text-align:center;transition:all .3s var(--ease)}
.lens-tabs button svg{width:26px;height:26px}
.lens-tabs button:hover{background:rgba(255,255,255,.16);transform:translateY(-3px)}
.lens-tabs button[aria-selected=true]{background:var(--iv);color:var(--g);border-color:var(--iv);transform:translateY(-4px);box-shadow:0 14px 30px rgba(0,0,0,.28)}
.lens-out{position:relative;z-index:1;margin-top:18px;background:rgba(0,0,0,.22);border-radius:12px;padding:18px 20px;min-height:92px}
.lens-out p{margin:0;font-size:clamp(15px,1.4vw,18px);line-height:1.55;animation:fadeup .5s var(--ease)}
.lens-out small{display:block;margin-top:8px;font-size:11px;color:#a9cdbd}
@keyframes fadeup{from{opacity:0;transform:translateY(8px)}}
.steps{display:grid;gap:14px}
.step{position:relative;background:#fffdf7;border:1px solid var(--line);border-radius:18px;padding:22px 24px 22px 78px;transition:transform .35s var(--ease),box-shadow .35s,border-color .35s}
.step:hover{transform:translateX(6px);box-shadow:0 18px 40px rgba(7,63,51,.1);border-color:#9fb8a9}
.step .n{position:absolute;left:20px;top:20px;width:42px;height:42px;border-radius:50%;background:var(--g);color:#fff;display:grid;place-items:center;font:400 20px 'DM Serif Display',serif}
.step:nth-child(2) .n{background:var(--r)}
.step h3{font-size:21px;margin:0 0 4px;color:var(--g)}
.step p{margin:0;font-size:14.5px;line-height:1.55;color:#4a6559}

/* ---------- stories: tidy ---------- */
.audiences{gap:12px!important}
.audiences button{border-radius:14px!important;transition:transform .3s var(--ease),box-shadow .3s,background .3s!important}
.audiences button:hover{transform:translateY(-3px);box-shadow:0 14px 30px rgba(7,63,51,.12)}
.story-button{border-radius:14px!important;transition:transform .3s var(--ease),box-shadow .3s!important}
.story-button:hover{transform:translateX(5px);box-shadow:0 12px 28px rgba(7,63,51,.1)}
#story-detail{border-radius:18px!important;box-shadow:0 24px 60px rgba(7,63,51,.08)}
@media(min-width:951px){.briefing #story-list{position:sticky;top:96px;align-self:start}}
#story-detail{animation:fadeup .6s var(--ease)}

/* cards & buttons everywhere */
button,.cta{transition:transform .25s var(--ease),background .25s,box-shadow .25s}
.data-lab-stage,.simulator,.team article,.team>*{border-radius:20px}

/* pager (mobile story carousel) */
.v61-pager{display:none}

/* ---------- bottom tab bar (mobile) ---------- */
.v61-tabs{display:none}

/* ---------- desktop only polish ---------- */
@media(min-width:951px){
 .chapter-rail{right:max(14px,calc((100vw - var(--wrap))/2 - 6px))!important}
}

/* ================= MOBILE ================= */
@media(max-width:950px){
 .hero{grid-template-columns:1fr!important;padding:36px 20px 56px!important;gap:34px!important;text-align:left}
 .v61-stage{max-width:420px;margin:0 auto;aspect-ratio:420/470;border-radius:999px 999px 16px 16px}
 .chip{min-width:112px;padding:10px 12px}
 .chip.c1{left:-2%;top:52%}.chip.c2{right:-2%;top:30%}.chip.c3{left:8%;bottom:9%}
 #how .hd,.how-grid{grid-template-columns:1fr}
 #how .hd{gap:14px;margin-bottom:28px}
 .chapter-rail{display:none!important}
}
@media(max-width:700px){
 header{padding:10px 16px!important}
 header .brand img{height:32px}
 header nav{display:none!important}
 .hero h1{font-size:clamp(38px,11.2vw,50px)!important}
 .hero .intro{font-size:15.5px!important}
 .hero-ctas .cta{width:100%;text-align:center}
 .hero-ctas .ghost{width:100%;justify-content:center;padding:10px}
 .hero-note{display:none!important}
 .v61-ticker span{font-size:12px;padding:0 22px;gap:22px}
 main>.section,#how{padding:48px 18px 56px!important}
 .section-heading{margin-bottom:20px!important}
 .section-heading p{font-size:14px!important}
 .lens-board{padding:20px;min-height:0}
 .lens-wires{display:none}
 .lens-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:18px}
 .lens-tabs{grid-template-columns:1fr 1fr}
 .lens-tabs button{flex-direction:row;display:flex;justify-content:flex-start;padding:12px;font-size:12.5px}
 .lens-tabs button svg{width:22px;height:22px;flex:none}
 .step{padding:18px 18px 18px 68px}
 .step .n{left:16px;top:16px;width:38px;height:38px}

 /* story picker becomes a clear swipe carousel */
 #story-list{scroll-snap-type:x mandatory;gap:12px!important;padding:2px 2px 12px!important;margin:0 -18px 6px!important;padding-inline:18px!important;scroll-padding-inline:18px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
 #story-list::-webkit-scrollbar{display:none}
 #story-list .story-button{scroll-snap-align:start;min-width:78%!important;max-width:78%;flex:none}
 .v61-pager{display:flex;align-items:center;justify-content:space-between;margin:0 0 16px;font:600 12px 'DM Sans';color:var(--muted)}
 .v61-dots{display:flex;gap:6px}
 .v61-dots i{width:7px;height:7px;border-radius:99px;background:#c9d2c3;transition:all .3s var(--ease)}
 .v61-dots i.on{width:22px;background:var(--r)}
 .v61-pager em{font-style:normal;display:inline-flex;gap:6px;align-items:center;animation:nudge 1.8s ease-in-out infinite}
 @keyframes nudge{50%{transform:translateX(5px)}}
 .audiences{grid-template-columns:1fr 1fr!important}
 .audiences button{padding:14px 12px!important}

 /* declutter */
 .discovery{bottom:calc(76px + env(safe-area-inset-bottom))!important;right:12px!important;left:auto!important;max-width:calc(100vw - 24px)}
 .back-top{bottom:calc(86px + env(safe-area-inset-bottom))!important}
 footer{padding-bottom:calc(96px + env(safe-area-inset-bottom))!important}
 body{padding-bottom:0}

 /* bottom tab bar */
 .v61-tabs{display:flex;position:fixed;z-index:80;left:10px;right:10px;bottom:calc(10px + env(safe-area-inset-bottom));background:rgba(7,63,51,.94);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-radius:20px;padding:6px;gap:2px;box-shadow:0 14px 40px rgba(0,0,0,.35),inset 0 0 0 1px rgba(159,216,192,.18)}
 .v61-tabs a{flex:1;display:grid;justify-items:center;gap:3px;padding:8px 2px 7px;border-radius:14px;color:#a9cdbd;text-decoration:none;font:600 10px/1.1 'DM Sans','Noto Sans Bengali',sans-serif;transition:all .3s var(--ease)}
 .v61-tabs a svg{width:21px;height:21px}
 .v61-tabs a.on{background:var(--iv);color:var(--g)}
 .v61-tabs a.on svg{color:var(--r)}
}

@media(max-width:700px){
 .perspective-stage .stage-bottom,.perspective-stage .stage-intro p,.perspective-stage .scene-topic{display:none!important}
 .perspective-stage .stage-art img,.perspective-stage .stage-art video{height:100%!important;object-fit:cover}
 .perspective-stage .stage-body{padding-top:0}
 .perspective-stage .stage-intro{min-height:0!important}
 .perspective-stage .stage-intro h3{font-size:26px!important}
 .profile-card img{max-height:320px;width:100%;object-fit:cover;object-position:top center}
 .data-lab-stage{padding:18px!important}
 .data-chart.data-bars{height:240px!important}
}
@media(max-width:420px){.v61-tabs a{font-size:9.5px}}

@media(prefers-reduced-motion:reduce){
 .v61-sun,.v61-ring,.wv,.v61-boat,.v61-boat g,.chip,.chip i,.v61-stars circle,.v61-ticker div,.v61-pager em{animation:none!important}
 .chip{opacity:1}.rv{opacity:1;transform:none;transition:none}
 .in .lens-wires path{animation:none;stroke-dashoffset:0}
}
@media(max-width:700px){.back-top{display:none!important}}