:root{--navy:#121a4c;--blue:#2a3b8f;--blue2:#3f53b5;--orange:#f6a12a;--bg:#f4f6fb;--card:#fff;--text:#16204a;--muted:#5b6788;--line:#e1e6f0;--warn:#fff6e8;--warnline:#f3cf8f;--radius:14px}
@media (prefers-color-scheme:dark){:root{--bg:#0d1230;--card:#161d45;--text:#eef1ff;--muted:#a9b2d6;--line:#28305e;--warn:#2a2416;--warnline:#6b5420;--blue:#8fa2ff;--blue2:#b3c0ff}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 'Hind Siliguri','Noto Sans Bengali',system-ui,-apple-system,'Segoe UI',sans-serif}
a{color:var(--blue)}
img{max-width:100%;display:block}
.wrap{width:min(1200px,100%);margin:0 auto;padding:0 16px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:-999px;top:0;background:var(--orange);color:#111;padding:8px 12px;z-index:9}
.skip:focus{left:8px}
.ic{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
.ic.big{width:46px;height:46px;opacity:.55}
/* header */
.top{background:var(--navy);color:#fff;position:sticky;top:0;z-index:5;box-shadow:0 2px 12px rgba(0,0,0,.18)}
.top-in{display:flex;align-items:center;gap:16px;min-height:64px;flex-wrap:wrap;padding-top:8px;padding-bottom:8px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none}
.brand img{width:40px;height:40px;border-radius:10px;object-fit:cover;background:#fff}
.brand b{display:block;font-size:17px;line-height:1.2}
.brand small{display:block;font-size:13px;color:#c8d0ff}
.search{flex:1;min-width:220px;display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border-radius:999px;padding:0 14px;color:#fff}
.search input{flex:1;min-width:0;background:transparent;border:0;color:inherit;font:inherit;height:42px;outline:none}
.search input::placeholder{color:#c8d0ff}
.search:focus-within{background:rgba(255,255,255,.2);box-shadow:0 0 0 2px var(--orange)}
.topnav{display:flex;gap:14px;font-size:15px}
.topnav a{color:#fff;text-decoration:none;opacity:.9}
.topnav a:hover{opacity:1;text-decoration:underline}
@media (max-width:760px){.topnav{display:none}.search{order:3;flex-basis:100%}}
/* hero */
.hero{background:linear-gradient(135deg,var(--navy),#2a3b8f 60%,#3a4fb8);color:#fff;padding:56px 0 48px}
.hero h1{font-size:clamp(30px,5vw,46px);line-height:1.2;margin:0 0 12px}
.hero p{max-width:720px;font-size:18px;color:#dfe4ff;margin:0 0 22px}
.search.big{max-width:680px;background:#fff;color:var(--muted)}
.search.big input{color:#16204a;height:54px;font-size:17px}
.search.big input::placeholder{color:#7a84a6}
.stats{list-style:none;display:flex;gap:28px;padding:0;margin:26px 0 0;flex-wrap:wrap}
.stats b{display:block;font-size:30px;color:var(--orange);line-height:1}
.stats span{font-size:14px;color:#c8d0ff}
.start{display:flex;gap:12px;margin-top:24px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--orange);color:#1b1b1b;text-decoration:none;font-weight:700;padding:12px 20px;border-radius:12px}
.btn.ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55)}
.btn .ic{fill:currentColor;stroke:none}
h2{font-size:24px;margin:40px 0 16px}
/* categories */
.cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.cat{display:flex;flex-direction:column;gap:6px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px;text-decoration:none;color:var(--text);transition:transform .15s,box-shadow .15s}
.cat .ic{color:var(--blue);width:26px;height:26px}
.cat b{font-size:18px}
.cat small{color:var(--muted)}
.cat:hover{transform:translateY(-2px);box-shadow:0 8px 22px rgba(18,26,76,.12)}
.paths{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px}
.path{background:var(--card);border:1px solid var(--line);border-left:4px solid var(--orange);border-radius:var(--radius);padding:16px}
.path h3{margin:0 0 6px;font-size:18px}
.path p{margin:0 0 8px;color:var(--muted)}
/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;text-decoration:none;color:var(--text);transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(18,26,76,.14)}
.thumb{position:relative;aspect-ratio:16/9;background:#dfe5f5;display:block}
.thumb img{width:100%;height:100%;object-fit:cover}
.ph{display:grid;place-items:center;height:100%;color:var(--blue)}
.dur{position:absolute;right:8px;bottom:8px;background:rgba(10,14,40,.82);color:#fff;font-size:13px;padding:2px 8px;border-radius:6px}
.dur.soon{background:var(--orange);color:#1b1b1b}
.card.soon{opacity:.75}
.cbody{display:flex;flex-direction:column;gap:2px;padding:12px 14px 14px}
.cid{font-size:12px;color:var(--muted);letter-spacing:.04em}
.cbody b{font-size:17px;line-height:1.35}
.cbody small{color:var(--muted)}
/* page */
.crumbs{font-size:14px;color:var(--muted);margin:20px 0 6px}
.crumbs a{text-decoration:none}
.ptitle{font-size:clamp(24px,3.4vw,34px);line-height:1.25;margin:4px 0 10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.ptitle small{font-size:16px;color:var(--muted);font-weight:500}
.meta{display:flex;flex-wrap:wrap;gap:8px 16px;color:var(--muted);font-size:14px;margin:0 0 16px}
.tag{background:var(--blue);color:#fff;border-radius:6px;padding:0 8px}
@media (prefers-color-scheme:dark){.tag{color:#0d1230}}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin:12px 0 18px}
.filters input,.filters select{font:inherit;height:44px;border:1px solid var(--line);border-radius:10px;padding:0 12px;background:var(--card);color:var(--text);min-width:0}
.filters input{flex:1;min-width:200px}
.empty,.scount{color:var(--muted)}
/* player */
.player{background:#000;border-radius:var(--radius);overflow:hidden;box-shadow:0 12px 30px rgba(0,0,0,.25)}
.player video{width:100%;display:block;aspect-ratio:16/9;background:#000}
.player:fullscreen video{height:100%;aspect-ratio:auto}
.pbar{display:flex;flex-wrap:wrap;gap:8px;align-items:center;padding:10px 12px;background:#0b0f2a}
.pb{font:inherit;font-size:14px;color:#dfe4ff;background:#1c2458;border:1px solid #2f3a7d;border-radius:8px;padding:5px 10px;cursor:pointer;text-decoration:none}
.pb.on,.pb[aria-pressed=true]{background:var(--orange);color:#1b1b1b;border-color:var(--orange)}
.speeds{display:inline-flex;gap:4px}
.noplayer{background:var(--card);border:1px dashed var(--line);border-radius:var(--radius);padding:28px;text-align:center;color:var(--muted)}
.noplayer .ic{margin:0 auto 8px}
.cols{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:28px;margin-top:8px}
@media (max-width:900px){.cols{grid-template-columns:1fr}}
.body section{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:4px 18px 10px;margin-top:16px}
.body h2{font-size:19px;margin:14px 0 6px}
.steps{padding-left:22px}
.steps li{margin:6px 0}
.warn{background:var(--warn)!important;border-color:var(--warnline)!important}
.where{color:var(--muted);font-size:14px}
.pn{display:flex;justify-content:space-between;gap:12px;margin:22px 0 10px;flex-wrap:wrap}
.pn a{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 14px;text-decoration:none;max-width:48%}
@media (max-width:600px){.pn a{max-width:100%}}
.side h2{font-size:19px;margin:16px 0 10px}
.mini{display:flex;flex-direction:column;gap:10px}
.mini a{display:flex;gap:10px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:8px;text-decoration:none;color:var(--text)}
.mini img{width:120px;height:68px;object-fit:cover;border-radius:8px;flex:none}
.mini b{display:block;font-size:15px;line-height:1.3}
.mini small{color:var(--muted)}
.center{text-align:center;padding:40px 16px}
/* footer */
.foot{margin-top:56px;background:var(--navy);color:#c8d0ff;padding:24px 0;font-size:14px}
.foot a{color:#fff}
:focus-visible{outline:3px solid var(--orange);outline-offset:2px}