:root{--bg:#f6f8fc;--surface:#ffffff;--ink:#101a3a;--text2:#4a5675;--brand:#1f4fd8;--navy:#0f1f5c;--line:#dfe5f1;--tint:#e8eefc;
box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){--bg:#0b1020;--surface:#121a33;--ink:#eaf0ff;--text2:#a9b5d6;--brand:#7a9bff;--navy:#cdd9ff;--line:#233058;--tint:#17224a;color-scheme:dark}}
:root[data-theme="dark"]{--bg:#0b1020;--surface:#121a33;--ink:#eaf0ff;--text2:#a9b5d6;--brand:#7a9bff;--navy:#cdd9ff;--line:#233058;--tint:#17224a;color-scheme:dark}
*{box-sizing:border-box}
html{scroll-padding-top:env(safe-area-inset-top,0px)}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Hind Siliguri","Noto Sans Bengali",system-ui,sans-serif;font-size:18px;line-height:1.9}
h1,h2,h3{font-family:"Noto Serif Bengali","Hind Siliguri",serif;color:var(--navy);line-height:1.4;margin:0}
a{color:var(--brand)}
a:focus-visible,button:focus-visible{outline:3px solid var(--brand);outline-offset:3px}
[hidden]{display:none!important}
.wrap{max-width:760px;margin:0 auto;padding:0 20px}
header{background:var(--surface);border-bottom:1px solid var(--line)}
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 20px}
.mark{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy);font-family:"Noto Serif Bengali",serif;font-weight:700;font-size:16px}
.mono{width:34px;height:34px;border-radius:8px;background:#fff;display:block}
.acts{display:flex;gap:8px;align-items:center}
.tbtn{font:inherit;font-size:15px;padding:6px 14px;border-radius:999px;border:1.5px solid var(--line);background:var(--surface);color:var(--navy);cursor:pointer;text-decoration:none;line-height:1.6}
.art{padding-top:26px;padding-bottom:36px}
.cat{display:inline-block;margin:0 0 8px;padding:2px 14px;border-radius:999px;background:var(--tint);color:var(--brand);font-size:15px;font-weight:600;line-height:1.8}
.art h1{font-size:clamp(26px,6vw,38px);font-weight:700}
.subt{color:var(--text2);margin:8px 0 0;font-size:17px;line-height:1.7}
.cover{width:100%;height:auto;border-radius:14px;display:block;margin:20px 0}
.body p{margin:0 0 16px}
.body .q{border-left:4px solid var(--brand);background:var(--tint);padding:10px 14px;border-radius:10px;margin:0 0 6px}
.body .ref{color:var(--text2);font-size:15px;margin:0 0 18px;padding-left:14px}
.body .ref a{font-weight:600}
.body .ar{font-family:"Noto Naskh Arabic","Amiri",serif;font-size:26px;line-height:2;text-align:center;color:var(--navy)}
.pact{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin:26px 0 8px;padding-top:18px;border-top:1px solid var(--line)}
.savebtn,.sharebtn{display:inline-flex;align-items:center;gap:6px;font:inherit;font-size:15px;margin:0;padding:6px 14px;border-radius:999px;border:1.5px solid var(--line);background:transparent;color:var(--brand);cursor:pointer;font-weight:600}
.savebtn i,.sharebtn i{font-style:normal}
.savebtn:hover,.sharebtn:hover{border-color:var(--brand)}
.savebtn.on{background:var(--tint);border-color:var(--brand)}
.savebtn.on .bk{fill:currentColor}
.btn{display:inline-block;padding:10px 22px;border-radius:12px;text-decoration:none;font-weight:600;background:var(--brand);color:#fff}
.more{margin:22px 0 0}
footer{border-top:1px solid var(--line);padding:24px 0 34px;text-align:center;color:var(--text2);font-size:15px}
.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--navy);color:var(--bg);padding:10px 18px;border-radius:999px;font-size:15px;z-index:50}