.arsb-download{--ad-blue:#073b74;--ad-blue2:#0b5b9f;--ad-ink:#172638;--ad-muted:#6b7889;--ad-border:#dce5ee;--ad-soft:#f4f7fb;--ad-shadow:0 8px 28px rgba(18,40,64,.07);font-family:Inter,"Noto Sans Bengali",Arial,sans-serif;color:var(--ad-ink);max-width:1280px;margin:0 auto}.arsb-download *{box-sizing:border-box}.arsb-dl-hero{position:relative;overflow:hidden;min-height:325px;padding:54px 58px;border-radius:22px;background:linear-gradient(135deg,#052f5c,#0a5797);color:#fff;display:flex;align-items:center}.arsb-dl-hero-copy{position:relative;z-index:2;max-width:760px}.arsb-dl-eyebrow,.arsb-dl-kicker{font-size:11px;font-weight:800;letter-spacing:.14em}.arsb-dl-eyebrow{display:inline-block;padding:7px 11px;border:1px solid rgba(255,255,255,.28);border-radius:30px}.arsb-dl-hero h2{margin:15px 0 12px;color:#fff;font-size:clamp(34px,5vw,56px);line-height:1.05;letter-spacing:-.035em}.arsb-dl-hero p{max-width:720px;margin:0;color:#e4eff9;font-size:16px;line-height:1.7}.arsb-dl-hero-btn{display:inline-flex;align-items:center;gap:8px;margin-top:25px;padding:13px 18px;border-radius:9px;background:#fff;color:var(--ad-blue)!important;font-size:13px;font-weight:800;text-decoration:none!important}.arsb-dl-radio-art{position:absolute;right:45px;top:20px;width:270px;height:270px;opacity:.18}.arsb-dl-radio-art span{position:absolute;left:50%;top:50%;border:3px solid #fff;border-top-color:transparent;border-bottom-color:transparent;border-radius:50%;transform:translate(-50%,-55%)}.arsb-dl-radio-art .r1{width:90px;height:90px}.arsb-dl-radio-art .r2{width:160px;height:160px}.arsb-dl-radio-art .r3{width:230px;height:230px}.arsb-dl-radio-art i{position:absolute;left:50%;bottom:5px;width:4px;height:170px;background:#fff;transform:translateX(-50%)}.arsb-dl-library{padding:42px 0}.arsb-dl-heading-row{display:flex;justify-content:space-between;align-items:end;gap:20px}.arsb-dl-kicker{color:var(--ad-blue2)}.arsb-dl-heading-row h3{margin:4px 0 0;font-size:30px;line-height:1.2}.arsb-dl-total{display:flex;align-items:baseline;gap:6px;color:var(--ad-muted)}.arsb-dl-total strong{font-size:25px;color:var(--ad-blue)}.arsb-dl-total span{font-size:12px}.arsb-dl-search{position:relative;display:block;margin:24px 0 14px}.arsb-dl-search>span:first-child{position:absolute;left:17px;top:50%;transform:translateY(-50%);font-size:23px;color:#6d7988}.arsb-dl-search input{width:100%;height:52px;padding:0 18px 0 47px;border:1px solid var(--ad-border)!important;border-radius:11px!important;background:#fff!important;color:var(--ad-ink)!important;outline:none!important;box-shadow:none!important}.arsb-dl-search input:focus{border-color:var(--ad-blue2)!important;box-shadow:0 0 0 3px rgba(11,91,159,.09)!important}.arsb-dl-filters{display:flex;gap:8px;flex-wrap:wrap}.arsb-dl-filters button{appearance:none;border:1px solid var(--ad-border);border-radius:30px;background:#fff;color:#3d4e62;padding:9px 15px;cursor:pointer;font-size:12px;font-weight:750;line-height:1.2}.arsb-dl-filters button small{opacity:.65;margin-left:3px}.arsb-dl-filters button:hover,.arsb-dl-filters button.active{border-color:var(--ad-blue);background:var(--ad-blue);color:#fff}.arsb-dl-sort-row{display:flex;justify-content:space-between;align-items:center;gap:15px;margin:18px 0 14px;color:var(--ad-muted);font-size:12px}.arsb-dl-sort-row label{display:flex;align-items:center;gap:8px}.arsb-dl-sort-row select{height:35px;padding:0 30px 0 10px;border:1px solid var(--ad-border);border-radius:8px;background:#fff;color:var(--ad-ink);font-size:12px}.arsb-dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.arsb-dl-card{display:flex;flex-direction:column;min-height:330px;padding:21px;border:1px solid var(--ad-border);border-radius:15px;background:#fff;box-shadow:var(--ad-shadow);transition:.2s ease}.arsb-dl-card:hover{transform:translateY(-3px);border-color:#bfd0e0;box-shadow:0 14px 34px rgba(18,40,64,.11)}.arsb-dl-card-top{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}.arsb-dl-fileicon{position:relative;display:inline-flex;width:46px;height:54px;flex:0 0 46px;align-items:center;justify-content:center}.arsb-dl-fileicon svg{position:absolute;inset:0;width:46px;height:54px}.arsb-dl-fileicon .sheet{fill:#eef3f8;stroke:#bdcbd9;stroke-width:1.4}.arsb-dl-fileicon .fold{fill:none;stroke:#bdcbd9;stroke-width:1.4}.arsb-dl-fileicon>span{position:relative;z-index:2;margin-top:13px;padding:3px 4px;border-radius:3px;background:var(--ad-blue);color:#fff;font-size:8px;font-weight:900;letter-spacing:.03em}.arsb-dl-type-pdf>span{background:#c93636}.arsb-dl-type-doc>span,.arsb-dl-type-docx>span{background:#285aa5}.arsb-dl-type-xls>span,.arsb-dl-type-xlsx>span,.arsb-dl-type-csv>span{background:#24724c}.arsb-dl-type-zip>span,.arsb-dl-type-rar>span,.arsb-dl-type-7z>span{background:#7253a1}.arsb-dl-badges{display:flex;gap:5px;flex-wrap:wrap;justify-content:flex-end}.arsb-dl-badge{display:inline-flex;align-items:center;gap:5px;padding:5px 8px;border-radius:20px;font-size:9px;font-weight:900;letter-spacing:.07em}.arsb-dl-badge.new{background:#e9f8ef;color:#18713c}.arsb-dl-badge.new i{width:6px;height:6px;border-radius:50%;background:#23a85a;animation:arsbDlPulse 1.5s infinite}.arsb-dl-badge.updated{background:#fff2d7;color:#895c05}@keyframes arsbDlPulse{0%{box-shadow:0 0 0 0 rgba(35,168,90,.45)}70%{box-shadow:0 0 0 7px rgba(35,168,90,0)}100%{box-shadow:0 0 0 0 rgba(35,168,90,0)}}.arsb-dl-category-label{margin-top:14px;color:var(--ad-blue2);font-size:10px;font-weight:800;text-transform:uppercase;letter-spacing:.08em}.arsb-dl-card h4{margin:6px 0 8px;color:#1b2a3b;font-size:17px;line-height:1.4}.arsb-dl-description{margin:0 0 12px;color:var(--ad-muted);font-size:12px;line-height:1.6}.arsb-dl-meta{display:flex;gap:6px 12px;flex-wrap:wrap;color:#6e7c8e;font-size:11px}.arsb-dl-dates{display:flex;flex-direction:column;gap:2px;margin-top:9px;color:#8591a0;font-size:10px}.arsb-dl-dates b{color:#677586;font-weight:700}.arsb-dl-actions{display:grid;grid-template-columns:.8fr 1.2fr;gap:8px;margin-top:auto;padding-top:18px}.arsb-dl-actions a{display:flex;align-items:center;justify-content:center;min-height:41px;border-radius:8px;font-size:12px;font-weight:800;text-decoration:none!important}.arsb-dl-details{border:1px solid var(--ad-border);color:#42566d!important}.arsb-dl-download{background:var(--ad-blue);color:#fff!important}.arsb-dl-download:hover{background:#052f5c;color:#fff!important}.arsb-dl-no-results,.arsb-dl-empty,.arsb-dl-admin-warning{padding:28px;border:1px dashed var(--ad-border);border-radius:13px;text-align:center;background:#fff}.arsb-dl-no-results strong,.arsb-dl-no-results span{display:block}.arsb-dl-no-results span{margin-top:4px;color:var(--ad-muted);font-size:12px}.arsb-dl-card[hidden]{display:none!important}.arsb-dl-admin-warning{border-color:#e3c06f;background:#fff9e9;text-align:left}.screen-reader-text{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(max-width:980px){.arsb-dl-hero{padding:44px 34px}.arsb-dl-radio-art{right:-45px}.arsb-dl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:640px){.arsb-dl-hero{min-height:auto;padding:34px 21px;border-radius:15px}.arsb-dl-hero h2{font-size:34px}.arsb-dl-hero p{font-size:14px}.arsb-dl-radio-art{display:none}.arsb-dl-heading-row{align-items:flex-start;flex-direction:column}.arsb-dl-filters{flex-wrap:nowrap;overflow-x:auto;padding-bottom:5px}.arsb-dl-filters button{flex:0 0 auto}.arsb-dl-sort-row{align-items:flex-start;flex-direction:column}.arsb-dl-grid{grid-template-columns:1fr}.arsb-dl-card{min-height:300px}}

/* v1.1.0 clarity + controls */
.arsb-dl-total{display:flex;flex-direction:column;align-items:flex-end;gap:1px;min-width:118px;padding:10px 14px;border:1px solid var(--ad-border);border-radius:11px;background:#fff;box-shadow:0 5px 18px rgba(18,40,64,.05)}
.arsb-dl-total .arsb-dl-total-label{font-size:10px;font-weight:800;letter-spacing:.06em;text-transform:uppercase;color:#758296}
.arsb-dl-total strong{font-size:27px;line-height:1;color:var(--ad-blue)}
.arsb-dl-visible{display:inline-flex;align-items:center;min-height:31px;padding:0 10px;border:1px solid var(--ad-border);border-radius:8px;background:#f8fafc;color:#526275;font-weight:700}
.arsb-dl-info-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:14px}
.arsb-dl-info{min-width:0;padding:9px 10px;border:1px solid #e4eaf0;border-radius:9px;background:#f8fafc}
.arsb-dl-info-label{display:block;margin-bottom:3px;color:#758396;font-size:9px;font-weight:800;letter-spacing:.055em;text-transform:uppercase}
.arsb-dl-info strong{display:block;overflow-wrap:anywhere;color:#26384c;font-size:11px;font-weight:800;line-height:1.35}
.arsb-dl-actions{grid-template-columns:auto auto minmax(105px,1fr);align-items:stretch}
.arsb-dl-actions.no-details{grid-template-columns:auto minmax(120px,1fr)}
.arsb-dl-actions.no-details:not(.has-video){grid-template-columns:1fr}
.arsb-dl-actions:not(.has-video){grid-template-columns:.8fr 1.2fr}
.arsb-dl-video{gap:6px;padding:0 11px;border:1px solid #efd4d4;background:#fff7f7;color:#bc1f1f!important}
.arsb-dl-video:hover{border-color:#d43a3a;background:#fff1f1;color:#a81414!important}
.arsb-dl-video svg{width:17px;height:17px;fill:currentColor;flex:0 0 17px}
.arsb-dl-badge.new{position:relative;overflow:visible;padding-left:8px;background:#edf9f1;color:#166c38;border:1px solid #cbead6}
.arsb-dl-badge.new .arsb-led{position:relative;display:inline-flex;align-items:center;justify-content:center;width:13px;height:13px;border-radius:50%;background:#0b5d2f;box-shadow:inset 0 0 0 1px rgba(0,0,0,.18),0 0 0 2px #dff5e7}
.arsb-dl-badge.new .arsb-led b{display:block;width:7px;height:7px;border-radius:50%;background:#30ee76;box-shadow:0 0 5px #29df6b,0 0 10px rgba(41,223,107,.9),0 0 16px rgba(41,223,107,.55);animation:arsbLedFlash 1.05s steps(2,end) infinite}
@keyframes arsbLedFlash{0%,42%{opacity:1;transform:scale(1);box-shadow:0 0 5px #29df6b,0 0 11px rgba(41,223,107,.95),0 0 18px rgba(41,223,107,.65)}43%,100%{opacity:.22;transform:scale(.82);box-shadow:0 0 2px rgba(41,223,107,.35)}}
@media (prefers-reduced-motion:reduce){.arsb-dl-badge.new .arsb-led b{animation:none}}
@media(max-width:640px){.arsb-dl-total{align-items:flex-start}.arsb-dl-info-grid{grid-template-columns:1fr 1fr}.arsb-dl-actions,.arsb-dl-actions.no-details,.arsb-dl-actions:not(.has-video){grid-template-columns:1fr}.arsb-dl-video span{display:inline}}

.arsb-dl-counter-group{display:flex;align-items:stretch;justify-content:flex-end;gap:10px;flex-wrap:wrap}.arsb-dl-counter-group .arsb-dl-total{min-width:122px}.arsb-dl-total-downloads strong{font-variant-numeric:tabular-nums}@media(max-width:640px){.arsb-dl-counter-group{width:100%;justify-content:flex-start}.arsb-dl-counter-group .arsb-dl-total{align-items:flex-start;flex:1 1 140px}}

/* v1.2.6 professional line-by-line document view */
@media (min-width: 981px){
  .arsb-dl-grid{display:block;border:1px solid var(--ad-border);border-radius:14px;overflow:hidden;background:#fff;box-shadow:0 8px 26px rgba(18,40,64,.05)}
  .arsb-dl-card{display:grid;grid-template-columns:58px minmax(300px,1fr) minmax(390px,auto) 86px minmax(150px,190px);align-items:center;gap:16px;min-height:0;padding:15px 18px;border:0;border-bottom:1px solid var(--ad-border);border-radius:0;background:#fff;box-shadow:none;transition:background .16s ease}
  .arsb-dl-card:last-child{border-bottom:0}
  .arsb-dl-card:hover{transform:none;border-color:var(--ad-border);background:#fbfdff;box-shadow:none}
  .arsb-dl-line-icon{display:flex;align-items:center;justify-content:center}
  .arsb-dl-fileicon{width:40px;height:47px;flex-basis:40px}
  .arsb-dl-fileicon svg{width:40px;height:47px}
  .arsb-dl-fileicon>span{margin-top:11px;font-size:7px}
  .arsb-dl-line-main{min-width:0}
  .arsb-dl-category-label{margin:0 0 4px;font-size:10px}
  .arsb-dl-card h4{margin:0;font-size:14px;line-height:1.35;font-weight:750}
  .arsb-dl-description{display:none}
  .arsb-dl-info-grid{display:flex;align-items:center;justify-content:flex-end;gap:0;margin:0;white-space:nowrap}
  .arsb-dl-info{position:relative;display:flex;align-items:center;gap:6px;min-width:auto;padding:0 14px;border:0;border-radius:0;background:transparent}
  .arsb-dl-info+.arsb-dl-info:before{content:"";position:absolute;left:0;top:50%;width:1px;height:22px;background:#dce5ee;transform:translateY(-50%)}
  .arsb-dl-info-label{display:block;margin:0;color:#758396;font-size:8px;font-weight:800;letter-spacing:.05em;text-transform:uppercase}
  .arsb-dl-info strong{font-size:11px;line-height:1.25;color:#24374b;overflow-wrap:normal}
  .arsb-dl-badges{justify-content:center;flex-wrap:nowrap}
  .arsb-dl-badge{padding:5px 8px}
  .arsb-dl-actions{display:flex;justify-content:flex-end;align-items:center;gap:7px;margin:0;padding:0}
  .arsb-dl-actions a{min-height:37px;padding:0 12px;white-space:nowrap}
  .arsb-dl-download{min-width:138px}
  .arsb-dl-details,.arsb-dl-video{min-width:auto}
  .arsb-dl-video span{display:none}
}

@media (min-width:981px) and (max-width:1180px){
  .arsb-dl-card{grid-template-columns:50px minmax(260px,1fr) minmax(320px,auto) 76px minmax(130px,160px);gap:10px;padding:13px 12px}
  .arsb-dl-info{padding:0 9px}
  .arsb-dl-info-label{display:none}
  .arsb-dl-download{min-width:120px}
}

@media (max-width:980px){
  .arsb-dl-line-icon{display:block}
  .arsb-dl-line-main{display:block}
}

/* v1.2.7 responsive refinements: desktop, tablet and mobile */
@media (max-width:980px){
  .arsb-download{width:100%;max-width:100%;padding:0 12px}
  .arsb-dl-library{padding:28px 0}
  .arsb-dl-search{margin:18px 0 12px}
  .arsb-dl-search input{height:46px}
  .arsb-dl-sort-row{margin:14px 0 12px}
  .arsb-dl-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;border:0;background:transparent;box-shadow:none;overflow:visible}
  .arsb-dl-card{display:flex;flex-direction:column;min-width:0;min-height:0;padding:16px;border:1px solid var(--ad-border);border-radius:12px;background:#fff;box-shadow:0 5px 18px rgba(18,40,64,.05)}
  .arsb-dl-card:hover{transform:none}
  .arsb-dl-line-icon{display:flex;align-items:center;justify-content:flex-start;margin-bottom:8px}
  .arsb-dl-line-main{min-width:0;width:100%}
  .arsb-dl-card h4{font-size:14px;line-height:1.4;overflow-wrap:anywhere}
  .arsb-dl-description{display:none}
  .arsb-dl-info-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:6px;width:100%;margin-top:12px;white-space:normal}
  .arsb-dl-info{display:block;min-width:0;padding:8px 9px;border:1px solid #e4eaf0;border-radius:8px;background:#f8fafc}
  .arsb-dl-info+.arsb-dl-info:before{display:none}
  .arsb-dl-info-label{display:block;margin-bottom:2px;font-size:8px}
  .arsb-dl-info strong{font-size:10px;overflow-wrap:anywhere}
  .arsb-dl-badges{justify-content:flex-start;margin-top:10px}
  .arsb-dl-actions,.arsb-dl-actions.no-details,.arsb-dl-actions:not(.has-video){display:grid;grid-template-columns:1fr;gap:7px;width:100%;margin-top:auto;padding-top:12px}
  .arsb-dl-actions a{min-height:38px;width:100%}
  .arsb-dl-download{min-width:0}
  .arsb-dl-counter-group{justify-content:flex-start}
}

@media (max-width:700px){
  .arsb-download{padding:0 10px}
  .arsb-dl-hero{padding:28px 18px;border-radius:13px}
  .arsb-dl-hero h2{font-size:30px}
  .arsb-dl-heading-row h3{font-size:24px}
  .arsb-dl-grid{grid-template-columns:1fr;gap:9px}
  .arsb-dl-card{padding:13px 14px;border-radius:10px}
  .arsb-dl-fileicon{width:34px;height:40px;flex-basis:34px}
  .arsb-dl-fileicon svg{width:34px;height:40px}
  .arsb-dl-fileicon>span{margin-top:9px;font-size:6px;padding:2px 3px}
  .arsb-dl-category-label{margin-top:0;font-size:9px}
  .arsb-dl-card h4{font-size:13px}
  .arsb-dl-info-grid{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:10px}
  .arsb-dl-info{padding:7px 8px}
  .arsb-dl-filters{margin-left:-2px;margin-right:-2px;scrollbar-width:thin;-webkit-overflow-scrolling:touch}
  .arsb-dl-filters button{padding:8px 12px;font-size:11px}
  .arsb-dl-sort-row{width:100%}
  .arsb-dl-sort-row label{width:100%;justify-content:space-between}
  .arsb-dl-sort-row select{max-width:210px;width:58%}
}

@media (max-width:420px){
  .arsb-download{padding:0 7px}
  .arsb-dl-hero{padding:24px 15px}
  .arsb-dl-hero h2{font-size:27px}
  .arsb-dl-hero p{font-size:13px;line-height:1.55}
  .arsb-dl-info-grid{grid-template-columns:1fr 1fr}
  .arsb-dl-info-label{font-size:7.5px}
  .arsb-dl-info strong{font-size:9.5px}
  .arsb-dl-badge{font-size:8px}
  .arsb-dl-actions a{min-height:36px;font-size:11px}
}

/* v1.2.8: prevent desktop metadata overlap when Last Modified is enabled */
@media (min-width:981px){
  .arsb-dl-card{
    grid-template-columns:48px minmax(250px,1fr) minmax(430px,1.25fr) 72px 138px;
    gap:12px;
  }
  .arsb-dl-line-main{min-width:0;overflow:hidden}
  .arsb-dl-card h4{overflow-wrap:anywhere;word-break:normal}
  .arsb-dl-info-grid{
    display:grid;
    grid-template-columns:repeat(4,minmax(88px,1fr));
    align-items:stretch;
    width:100%;
    min-width:0;
    gap:0;
    white-space:normal;
  }
  .arsb-dl-info{
    min-width:0;
    padding:2px 10px;
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    justify-content:center;
    gap:2px;
  }
  .arsb-dl-info-label{display:block;white-space:nowrap;font-size:7px;line-height:1.1}
  .arsb-dl-info strong{display:block;max-width:100%;font-size:10px;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .arsb-dl-info+.arsb-dl-info:before{height:28px}
  .arsb-dl-download{min-width:138px}
}

@media (min-width:981px) and (max-width:1180px){
  .arsb-dl-card{
    grid-template-columns:42px minmax(220px,1fr) minmax(360px,1.15fr) 64px 120px;
    gap:8px;
    padding:12px 10px;
  }
  .arsb-dl-info-grid{grid-template-columns:repeat(4,minmax(76px,1fr))}
  .arsb-dl-info{padding:2px 6px}
  .arsb-dl-info-label{display:block;font-size:6.5px}
  .arsb-dl-info strong{font-size:9.5px}
  .arsb-dl-download{min-width:116px}
  .arsb-dl-actions a{padding:0 9px}
}