@font-face{font-family:SolaimanLipi;src:url(/fonts/solaimanlipi-bengali-400.woff2)format("woff2");font-weight:400;font-display:swap;unicode-range:U+964-965,U+980-9FE,U+200C-200D,U+25CC;size-adjust:104%}@font-face{font-family:SolaimanLipi;src:url(/fonts/solaimanlipi-bengali-700.woff2)format("woff2");font-weight:700;font-display:swap;unicode-range:U+964-965,U+980-9FE,U+200C-200D,U+25CC;size-adjust:104%}@font-face{font-family:Atma;src:url(/fonts/atma-bengali-700-normal.woff2)format("woff2");font-weight:600 700;font-display:swap;unicode-range:U+951-952,U+964-965,U+980-9FE,U+200C-200D,U+25CC}@font-face{font-family:Atma;src:url(/fonts/atma-latin-700-normal.woff2)format("woff2");font-weight:600 700;font-display:swap;unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:Inter;src:url(/fonts/inter-latin-wght-normal.woff2)format("woff2");font-weight:100 900;font-display:swap;unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--paper:#f2ece0;--ink:#1b1d1a;--ink-2:#545a52;--line-soft:#dcd3c3;--paper-tex:url(/textures/paper-light.webp);--leaf:#1d7a46;--leaf-ink:#155c35;--leaf-tint:#e9f4ec;--on-leaf:#fff;--radius:12px;--stroke:1.5px;--line:2.5px;--lip:6px;--r-lg:24px;--card:#fffcf6;--text:"SolaimanLipi", "Inter", system-ui, sans-serif;--display:"Atma", "SolaimanLipi", "Inter", system-ui, sans-serif;--mono:ui-monospace, "SFMono-Regular", Menlo, Consolas, "SolaimanLipi", monospace;--wrap:1120px;--read:680px;--gutter:16px;color-scheme:light}*{box-sizing:border-box}[hidden]{display:none!important}html{-webkit-text-size-adjust:100%}body,.site-header,.menu-panel{background:var(--paper) var(--paper-tex) repeat 0 0 / 1024px 1024px}body{color:var(--ink);font:400 17px/1.75 var(--text);margin:0}@media (width>=768px){body{font-size:18px}:root{--gutter:24px}}a{color:var(--leaf-ink);text-underline-offset:3px}img,svg{display:block}h1,h2,h3{margin:0;line-height:1.3}p{margin:0 0 1em}.wrap{max-width:var(--wrap);padding:0 var(--gutter);margin:0 auto}.muted{color:var(--ink-2)}.sr{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.site-header{z-index:10;border-bottom:var(--line) solid var(--ink);position:sticky;top:0}.site-header .wrap{align-items:center;gap:16px;height:64px;display:flex}@media (width<=429px){.site-header .wrap{gap:8px}.nav{gap:0}}.zig{fill:none;width:240px;height:10px;stroke:var(--ink);stroke-width:1.8px;stroke-linejoin:round;display:none}.logo{min-height:44px;color:var(--ink);font:700 22px/1 var(--display);align-items:center;gap:8px;text-decoration:none;display:flex}@media (width<=379px){.site-header .wrap{gap:8px}.logo{font-size:20px}.logo svg{width:30px;height:30px}.nav{gap:0}.nav .short{padding:0 6px}}.logo b{color:var(--leaf-ink);font-weight:700}.logo svg{width:34px;height:34px}.nav{align-items:center;gap:4px;margin-left:auto;display:flex}.nav a,.icon-btn{border-radius:var(--radius);min-height:44px;color:var(--ink);cursor:pointer;font-size:16px;font-weight:700;font-family:var(--text);background:0 0;border:0;align-items:center;gap:6px;padding:0 12px;text-decoration:none;display:inline-flex}.nav a:hover,.icon-btn:hover{background:var(--leaf-tint)}.icon-btn{justify-content:center;min-width:44px;padding:0 10px}.icon-btn svg,.nav svg{width:22px;height:22px}.lang{border:var(--stroke) solid var(--ink)!important}.nav .wide{display:none}.nav .short{min-width:44px;font:600 15px/1 "Inter", var(--text);justify-content:center}@media (width>=900px){.nav .wide{display:inline-flex}.nav .menu,.nav .short{display:none}}.btn{background:var(--card);border:var(--line) solid var(--ink);min-height:48px;box-shadow:0 4px 0 var(--ink);font:700 17px/1 var(--text);color:var(--ink);border-radius:999px;align-items:center;gap:10px;padding:0 22px;text-decoration:none;transition:transform .12s,box-shadow .12s;display:inline-flex}.btn:active{box-shadow:0 0 0 var(--ink);transform:translateY(4px)}.btn-leaf{background:var(--leaf);color:var(--on-leaf)!important}.btn-leaf:hover{background:var(--leaf-ink)}.btn svg{width:20px;height:20px}.steam{transform-box:fill-box;transform-origin:bottom;animation:2.8s ease-in-out infinite steam}.steam.s2{animation-delay:1.1s}@keyframes steam{0%,to{opacity:.2;transform:translateY(2px)}50%{opacity:1;transform:translateY(-2px)}}@media (prefers-reduced-motion:reduce){.steam{opacity:.8;animation:none}}.rows{border-top:1px solid var(--line-soft);margin:0;padding:0;list-style:none}.rows li{border-bottom:1px solid var(--line-soft)}.rows a{color:var(--ink);grid-template-columns:1fr auto;gap:4px 16px;padding:16px 0;text-decoration:none;display:grid}.rows a:hover .t{color:var(--leaf-ink)}.rows .t{font-size:19px;font-weight:700;line-height:1.4}.rows .x{color:var(--ink-2);-webkit-line-clamp:1;-webkit-box-orient:vertical;grid-column:1;font-size:16px;line-height:1.6;display:-webkit-box;overflow:hidden}.rows .m{color:var(--ink-2);grid-column:1;font-size:14px}.rows .go{width:22px;height:22px;color:var(--ink-2);grid-area:1/2/span 3;align-self:center}@media (width>=768px){.rows .x{-webkit-line-clamp:2}}.sec-h{justify-content:space-between;align-items:baseline;gap:16px;margin:0 0 14px;display:flex}.sec-h h2{font-size:24px}.sec-h a{font-size:16px;font-weight:700}.site-footer{margin-top:64px;padding:0 0 88px;font-size:15px}.site-footer .wrap{text-align:center;flex-direction:column;align-items:center;gap:8px;display:flex}.site-footer .zig{margin:44px 0 6px;display:block}.site-footer nav{flex-wrap:wrap;justify-content:center;gap:0 24px;display:flex}.site-footer nav a{font-weight:700;text-decoration:none}.site-footer nav a:hover{color:var(--leaf-ink)}.sheet.subscribe{text-align:center;background:var(--leaf);width:100%;color:var(--on-leaf);grid-template-columns:minmax(0,1fr);justify-items:center;gap:6px;padding:30px 18px 34px;display:grid}.subscribe .plane{width:72px;height:54px}.subscribe h2{font:700 26px/1.3 var(--display)}.subscribe p{margin:0;font-size:16px}.sub-form{width:min(100%,460px);margin-top:14px;display:flex}.sub-form input[type=email]{border:3px solid var(--ink);background:var(--card);min-width:0;min-height:52px;color:var(--ink);font:400 16px var(--text);border-right:0;border-radius:999px 0 0 999px;flex:1;padding:0 18px}.sub-form button{border:3px solid var(--ink);background:var(--ink);min-height:52px;color:var(--paper);font:700 16px/1 var(--text);cursor:pointer;border-radius:999px;margin-left:-26px;padding:0 22px}.sub-form button:hover{background:var(--leaf-ink)}@media (width<=379px){.sub-form{flex-direction:column;gap:10px}.sub-form input[type=email]{border-right:3px solid var(--ink);border-radius:999px}.sub-form button{margin-left:0}}.sub-form .hp{opacity:0;width:1px;height:1px;position:absolute;left:-9999px}.sub-status:empty{display:none}.sub-status{font-weight:700;margin-top:10px!important}@media (width>=768px){.subscribe{padding:40px 24px 46px}.subscribe h2{font-size:32px}}.site-footer nav a{color:var(--ink);justify-content:center;align-items:center;min-width:44px;min-height:44px;display:inline-flex}.site-footer .copy{color:var(--ink-2)}.sheet{border:var(--line) solid var(--ink);border-radius:var(--r-lg);background:var(--card);box-shadow:0 var(--lip) 0 var(--ink);color:var(--ink);text-decoration:none;display:block;position:relative}a.sheet{transition:transform .18s,box-shadow .18s}a.sheet:hover{box-shadow:0 calc(var(--lip) + 3px) 0 var(--ink);transform:translateY(-3px)}a.sheet:active{transform:translateY(var(--lip));box-shadow:0 0 0 var(--ink)}.pill{background:var(--ink);min-height:30px;color:var(--paper);font:700 14px/1 var(--text);white-space:nowrap;border-radius:999px;align-items:center;gap:6px;padding:0 14px;display:inline-flex}.pill svg{width:16px;height:16px}.focus{background:#fff;position:relative;overflow:hidden;container-type:inline-size}.focus .in{--w:100cqw;left:calc((100cqw - var(--w)) / 2);width:var(--w);top:clamp(calc(100% - var(--r) * var(--w)), calc(50% - var(--y) * var(--w)), 0px);position:absolute}.big .focus{background:var(--leaf-tint)}.big .focus.phone .in{--w:min(100cqw, 480px)}.big .focus.desktop .in{--w:min(100cqw, 860px)}.big .focus .in{box-shadow:0 0 0 1.5px var(--ink)}.focus img{width:100%;height:auto}.hero{padding-top:28px;padding-bottom:36px;position:relative;container-type:inline-size}.track{scroll-snap-type:x mandatory;overscroll-behavior-x:contain;scrollbar-width:none;padding-bottom:12px;display:flex;overflow-x:auto}.track::-webkit-scrollbar{display:none}.slide{scroll-snap-align:start;flex:0 0 100%;min-width:0;padding:0 2px}.big{overflow:hidden}.big .focus{aspect-ratio:4/3;border-radius:calc(var(--r-lg) - var(--line))}.title-card{text-align:center;width:fit-content;max-width:calc(100% - 32px);margin:-40px auto 0;padding:12px 22px 10px}.title-card h2{font:700 21px/1.35 var(--display);text-wrap:balance}.title-card:hover h2{color:var(--leaf-ink)}.hero .mark{animation:2.6s ease-in-out infinite callout}.hero .mark+.mark{animation-delay:1.3s}@keyframes callout{0%,60%,to{box-shadow:0 0 0 2px #fff}30%{box-shadow:0 0 0 2px #fff,0 0 0 9px #1d7a464d}}.meta2{flex-wrap:wrap;justify-content:center;align-items:center;gap:4px 10px;margin-top:4px;font-size:14px;font-weight:700;display:flex}.meta2 i,.card .strip i{border-top:2px solid var(--leaf);width:18px}@media (width<=479px){.meta2 i,.card .strip i{display:none}.meta2,.card .strip{column-gap:14px}}.arrow{z-index:2;border:3px solid var(--ink);background:var(--card);width:48px;height:48px;box-shadow:0 5px 0 var(--ink);color:var(--ink);cursor:pointer;border-radius:14px;place-items:center;padding:0;transition:transform .12s,box-shadow .12s;display:grid;position:absolute;top:40px}.arrow:hover{background:var(--leaf-tint)}.arrow:active{box-shadow:0 0 0 var(--ink);transform:translateY(5px)}.arrow svg{width:32px;height:32px}.arrow .flip{transform:scaleX(-1)}.arrow.prev{left:calc(var(--gutter) + 12px)}.arrow.next{right:calc(var(--gutter) + 12px)}@media (width>=768px){.big .focus{aspect-ratio:21/9}.title-card{max-width:70%;margin-top:-52px;padding:16px 32px 12px}.title-card h2{font-size:28px}.arrow{top:calc(28px + (100cqw - 2 * var(--gutter)) * 9 / 42 - 34px);width:64px;height:64px;box-shadow:0 8px 0 var(--ink);border-width:4px;border-radius:18px}.arrow:active{transform:translateY(8px)}.arrow svg{width:42px;height:42px}.arrow.prev{left:calc(var(--gutter) - 24px)}.arrow.next{right:calc(var(--gutter) - 24px)}}@media (width>=1168px){.arrow{top:calc(28px + (var(--wrap) - 2 * var(--gutter)) * 9 / 42 - 34px)}}.feed{gap:0 22px;display:grid}.fcol{display:contents}.fitem{padding-bottom:30px}@media (width>=640px){.feed{align-items:flex-start;display:flex}.fcol{flex:1;min-width:0;display:block}}@media (width>=640px) and (width<=959px){.feed{flex-wrap:wrap}.fcol{flex:0 0 calc(50% - 11px)}.fcol:nth-child(3){columns:2;flex-basis:100%;column-gap:22px}.fcol:nth-child(3) .fitem{break-inside:avoid}}.card .strip{border-bottom:var(--line) solid var(--ink);flex-wrap:wrap;justify-content:center;align-items:center;gap:2px 10px;padding:12px 16px;font-size:14px;font-weight:700;display:flex}.card .pic{border:var(--line) solid var(--ink);border-radius:calc(var(--r-lg) - 6px);margin:16px 16px 0;display:block;overflow:hidden}.card .pic .focus{aspect-ratio:4/3}.card .pic.square .focus{aspect-ratio:1}.card .pic.tall .focus{aspect-ratio:4/5}.card .body{text-align:center;flex-direction:column;align-items:center;gap:6px;padding:16px 20px 20px;display:flex}.card .t{font:700 22px/1.35 var(--display)}.card:hover .t{color:var(--leaf-ink)}.card .lvl{font-size:14px}.card .x{color:var(--ink-2);-webkit-line-clamp:3;-webkit-box-orient:vertical;font-size:16px;line-height:1.6;display:-webkit-box;overflow:hidden}.card .foot{align-items:center;gap:12px;width:100%;padding-top:8px;display:flex}.card .foot:before,.card .foot:after{content:"";border-top:var(--line) solid var(--ink);flex:1}.lead-card{background:var(--leaf-tint)}.lead-card .strip{background:var(--leaf-tint);border-radius:var(--r-lg) var(--r-lg) 0 0}.widget{overflow:hidden}:is(.widget,.toc) .wh{border-bottom:var(--line) solid var(--ink);background:var(--leaf);color:var(--on-leaf);text-align:center;margin:0;padding:12px 16px;font-size:17px}.nlist{margin:0;padding:4px 18px 8px;list-style:none}.nlist li+li{border-top:var(--line) solid var(--ink)}.nlist a{min-height:64px;color:var(--ink);align-items:center;gap:12px;padding:10px 0;font-size:16px;font-weight:700;line-height:1.4;text-decoration:none;display:flex}.nlist a:hover span{color:var(--leaf-ink)}.nlist b{background:var(--ink);width:34px;height:34px;color:var(--paper);font:700 15px/1 "Inter", var(--text);border-radius:50%;flex:none;place-items:center;display:grid}.about-box{text-align:center;justify-items:center;gap:10px;padding:24px 20px 22px;display:grid}.about-box .ic{border:var(--line) solid var(--ink);background:var(--leaf-tint);border-radius:50%;place-items:center;width:72px;height:72px;display:grid}.about-box .ic svg{width:46px;height:46px}.about-box p{color:var(--ink-2);margin:0;font-size:15px;line-height:1.65}.about-box a{color:var(--ink);align-items:center;min-height:44px;font-weight:700;display:inline-flex}.postx{grid-template-columns:minmax(0,1fr);justify-items:center;gap:34px;max-width:1400px;padding-top:28px;display:grid}.post-sheet{order:1;width:100%;max-width:860px;padding:12px 12px 26px}.post-pic{border:var(--line) solid var(--ink);border-radius:calc(var(--r-lg) - 6px);overflow:hidden}.post-pic .focus{aspect-ratio:4/3;background:var(--leaf-tint)}.post-pic .focus.phone .in{--w:min(100cqw, 520px);box-shadow:0 0 0 1.5px var(--ink)}.post-head{text-align:center;padding:16px 6px 4px}.post-head .crumbs{margin-bottom:0}.post-head h1{font:700 30px/1.3 var(--display);text-wrap:balance;margin:0 0 6px}.post-head .meta2 a{color:var(--ink);align-items:center;min-height:44px;display:inline-flex}.post-sheet>.needs,.post-sheet>.prose,.post-sheet>.note-fine{max-width:var(--read);margin-left:auto;margin-right:auto;padding:0 6px}.post-sheet>.needs{text-align:center;margin-top:4px}.hash{flex-wrap:wrap;justify-content:center;gap:0 18px;margin:22px auto 0;padding:0;list-style:none;display:flex}.hash a{min-height:44px;font:700 15px/1 "Inter", var(--text);color:var(--ink);align-items:center;text-decoration:none;display:inline-flex}.hash a:hover{color:var(--leaf-ink)}@media (width>=768px){.post-sheet{padding:16px 16px 36px}.post-pic .focus{aspect-ratio:16/9}.post-head{padding-top:22px}.post-head h1{font-size:44px}}.share{order:2;align-items:center;gap:12px;display:flex}.share ul{background:var(--ink);border-radius:999px;margin:0;padding:4px 10px;list-style:none;display:flex}.share a,.share button{width:44px;height:44px;color:var(--paper);cursor:pointer;background:0 0;border:0;place-items:center;padding:0;display:grid}.share a:hover,.share button:hover,.share button.done{color:var(--leaf-tint)}.share svg{width:22px;height:22px}.share .label{font:700 15px/1 var(--text);order:-1}@media (width>=1100px){.postx{grid-template-columns:1fr minmax(0,860px) 1fr;align-items:start;column-gap:0}.post-sheet{grid-area:1/2}.share{flex-direction:column;grid-area:1/1;justify-self:end;margin-top:140px;position:sticky;top:100px}.share ul{border-radius:18px 0 0 18px;flex-direction:column;padding:10px 4px}.share .label{writing-mode:vertical-rl;order:0;transform:rotate(180deg)}}.toc-pop{display:none}@media (width>=1360px){.toc-pop{grid-area:1/3;justify-self:start;width:230px;margin:140px 0 0 26px;display:block;position:sticky;top:100px}.toc-pop .toc{overflow:hidden}.toc-pop .toc ol{border:0;padding:4px 14px 8px}.toc-pop .toc li+li{border-top:1.5px solid var(--line-soft)}.toc-pop .toc li a{padding-left:0;font-size:14.5px}.toc-pop .toc li a[aria-current]{color:var(--leaf-ink);border-left:0;margin-left:0;padding-left:0}}.next-card{text-align:center;order:3;justify-items:center;gap:6px;width:100%;max-width:860px;padding:0 20px 22px;display:grid}@media (width>=1100px){.next-card,.postx>.more-sec{grid-column:2}}.next-card .tab{background:var(--ink);color:var(--paper);font:700 14px/1 var(--text);border-radius:0 0 14px 14px;justify-content:center;justify-self:stretch;align-items:center;gap:10px;margin:0 24px 10px;padding:8px;display:flex}.next-card .tab svg{width:22px;height:22px}.next-card .thumb{border:var(--line) solid var(--ink);border-radius:18px;width:96px;display:block;overflow:hidden}.next-card .thumb .focus{aspect-ratio:1}.next-card .nt{font:700 22px/1.35 var(--display);text-wrap:balance}.next-card:hover .nt{color:var(--leaf-ink)}.postx>.more-sec{order:4;width:100%;max-width:860px;margin-top:0}.reactions{max-width:var(--read);text-align:center;margin:30px auto 0}.reactions h2{font:700 20px/1.3 var(--display);margin-bottom:14px}.reactions ul{flex-wrap:wrap;justify-content:center;gap:14px 10px;margin:0;padding:0 0 8px;list-style:none;display:flex}.reactions button{cursor:pointer;width:104px;font:inherit;justify-items:center;gap:4px;padding:12px 6px 10px;display:grid}.reactions .emo{font-size:30px;line-height:1}.reactions .n{font:700 16px/1.2 "Inter", var(--text)}.reactions .pill{min-height:24px;padding:0 10px;font-size:12.5px}.reactions button[aria-pressed=true]{background:var(--leaf-tint);border-color:var(--leaf)}.reactions button:hover{box-shadow:0 calc(var(--lip) + 3px) 0 var(--ink);transform:translateY(-3px)}.reactions button:active{transform:translateY(var(--lip));box-shadow:0 0 0 var(--ink)}@media (width<=479px){.reactions ul{gap:12px 8px}.reactions button{width:94px}}@media (width<=339px){.reactions button{width:84px}}.consent{z-index:30;gap:12px;max-width:640px;margin:0 auto;padding:16px 18px;display:grid;position:fixed;bottom:12px;left:12px;right:12px}.consent p{margin:0;font-size:15px;line-height:1.6}.consent-btns,.choice-btns{flex-wrap:wrap;gap:12px;display:flex}.choice{gap:14px;margin-top:28px;padding:20px;display:grid}.choice h2{font-size:18px}.totop{z-index:15;border:3px solid var(--ink);background:var(--card);width:52px;height:52px;box-shadow:0 5px 0 var(--ink);color:var(--ink);visibility:hidden;border-radius:14px;place-items:center;transition:transform .3s,visibility .3s;display:grid;position:fixed;bottom:20px;right:16px;overflow:hidden;transform:translateY(120px)}.far .totop{visibility:visible;transform:none}.totop .fill{background:var(--leaf-tint);transform-origin:bottom;transform:scaleY(var(--progress,0));position:absolute;inset:0}.totop svg{width:32px;height:32px;position:relative;transform:rotate(-90deg)}@media (width>=768px){.totop{width:60px;height:60px;box-shadow:0 7px 0 var(--ink);border-width:4px;border-radius:16px;bottom:32px;right:28px}.totop svg{width:38px;height:38px}}@media (prefers-reduced-motion:reduce){a.sheet,.btn,.totop,.arrow{transition:none}a.sheet:hover{transform:none}.hero .mark{animation:none}}.cols{gap:40px;display:grid}@media (width>=960px){.cols{grid-template-columns:1fr 320px;gap:56px}.cols aside>div{position:sticky;top:84px}}.tags{flex-wrap:wrap;gap:8px;margin:0 0 28px;padding:0;list-style:none;display:flex}.tags a{border:var(--stroke) solid var(--ink);min-height:44px;font:600 15px/1 "Inter", var(--text);color:var(--ink);border-radius:999px;align-items:center;padding:0 14px;text-decoration:none;display:inline-flex}.tags a:hover{background:var(--leaf-tint)}.note h2{margin-bottom:10px;font-size:20px}.note p{color:var(--ink-2);font-size:16px}.note .sig{color:var(--ink);font-weight:700}.post{grid-template-columns:minmax(0,1fr);gap:40px;padding-top:24px;display:grid}@media (width>=1024px){.post{grid-template-columns:minmax(0, var(--read)) 280px;gap:64px}}.crumbs{color:var(--ink-2);margin-bottom:18px;font-size:14px}.crumbs a{color:var(--ink-2);justify-content:center;align-items:center;min-width:44px;min-height:44px;display:inline-flex}.kicker{color:var(--leaf-ink);font-size:16px;font-weight:700}.post h1{font:700 34px/1.25 var(--display);margin:4px 0 12px}@media (width>=768px){.post h1{font-size:48px}}.meta{color:var(--ink-2);flex-wrap:wrap;align-items:center;gap:6px 14px;margin-bottom:14px;font-size:15px;display:flex}.meta a{align-items:center;min-height:44px;font-weight:700;display:inline-flex}.needs{color:var(--ink-2);margin:0 0 22px;font-size:15px}.needs b{color:var(--ink)}article h2{margin:44px 0 16px;scroll-margin-top:84px;font-size:26px}article h3{font:700 20px/1.4 "Inter", var(--text);margin:26px 0 10px}article ul{padding-left:1.2em}article li{margin-bottom:8px}.box{border:var(--stroke) solid var(--ink);border-radius:var(--radius);margin:22px 0;padding:14px 18px 4px}.box .bh{margin-bottom:4px;font-weight:700;display:block}.box.analogy{background:var(--leaf-tint);border-color:var(--leaf)}pre{font:400 14.5px/1.6 var(--mono);border:var(--stroke) solid var(--ink);border-radius:var(--radius);margin:22px 0;padding:16px;overflow-x:auto}.nextch{border-top:1px solid var(--line-soft);color:var(--ink);justify-content:space-between;align-items:center;gap:16px;margin-top:40px;padding:20px 0 0;text-decoration:none;display:flex}.nextch small{color:var(--ink-2);font-size:14px;display:block}.nextch b{font:700 22px/1.3 var(--display)}.nextch svg{flex:none;width:28px;height:28px}.rail{display:none}@media (width>=1024px){.rail{display:block}.rail .toc{position:sticky;top:84px}}.toc h2{margin-bottom:10px;font-size:16px}.toc ol{border-left:1px solid var(--line-soft);margin:0;padding:0;list-style:none}.toc li a{min-height:44px;color:var(--ink-2);align-items:center;gap:10px;padding:4px 0 4px 14px;font-size:15px;line-height:1.4;text-decoration:none;display:flex}.toc li a[aria-current]{color:var(--ink);border-left:3px solid var(--leaf);margin-left:-1.5px;padding-left:12.5px;font-weight:700}:lang(en) body,body:lang(en){font-family:Inter,SolaimanLipi,system-ui,sans-serif}html:lang(en) body{font-size:17px;line-height:1.7}.skip{position:absolute;left:-999px}.skip:focus{z-index:50;background:var(--paper);border:var(--stroke) solid var(--ink);border-radius:var(--radius);padding:8px 12px;top:8px;left:16px}:focus-visible{outline:2.5px solid var(--leaf);outline-offset:2px}.icon-btn.menu{position:relative}.menu-panel{border:0;border-left:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);border-radius:0 0 0 var(--radius);width:min(320px,100vw);color:var(--ink);padding:8px var(--gutter) 16px;margin:0;inset:64px 0 auto auto}.menu-panel::backdrop{background:#00000040}.menu-panel a{border-bottom:1px solid var(--line-soft);min-height:48px;color:var(--ink);align-items:center;font-size:17px;font-weight:700;text-decoration:none;display:flex}.menu-panel a:last-child{border-bottom:0}.page-head{padding-top:28px;padding-bottom:8px}.page-head h1{font:700 34px/1.25 var(--display);margin:4px 0 10px}@media (width>=768px){.page-head h1{font-size:44px}.page-head{padding-top:48px}}.page-head .lead{color:var(--ink-2);max-width:40em;font-size:18px}.narrow{max-width:calc(var(--read) + 2 * var(--gutter))}.page-sheet{max-width:800px;margin:24px auto 0;padding:0 18px 28px}.page-sheet .page-head{padding-top:22px}.page-sheet~.choice{max-width:800px;margin-left:auto;margin-right:auto}@media (width>=768px){.page-sheet{margin-top:44px;padding:0 44px 40px}.page-sheet .page-head{padding-top:36px}}.tag-cloud{justify-content:flex-start;gap:10px;margin:8px 0 0}.tag-cloud a{border:var(--line) solid var(--ink);background:var(--paper);border-radius:999px;gap:8px;padding:0 16px}.tag-cloud a:hover{background:var(--leaf-tint)}.tag-cloud b{color:var(--leaf-ink)}.series-head{align-items:flex-start;gap:18px;display:flex}.series-head>svg{flex:none;width:56px;height:56px;margin-top:8px}.fine{color:var(--ink-2);font-size:15px}.rows .n{color:var(--leaf-ink);font-size:14px;font-weight:700}.prose>p,.prose li{overflow-wrap:anywhere}.prose ol,.prose ul{padding-left:1.3em}.prose li{margin-bottom:8px}.prose blockquote{border-left:3px solid var(--line-soft);color:var(--ink-2);margin:18px 0;padding:4px 0 4px 18px}.prose :not(pre)>code{font:400 .88em/1 var(--mono);background:var(--leaf-tint);overflow-wrap:anywhere;border-radius:6px;padding:2px 5px}.prose .tbl-wrap{border:var(--stroke) solid var(--ink);border-radius:var(--radius);margin:22px 0;overflow-x:auto}.prose table{border-collapse:collapse;width:100%;font-size:15.5px;line-height:1.55}.prose th,.prose td{text-align:left;vertical-align:top;border-bottom:1px solid var(--line-soft);padding:10px 12px}.prose th{border-bottom:var(--stroke) solid var(--ink);font-weight:700}.prose tr:last-child td{border-bottom:0}.prose th+th,.prose td+td{border-left:1px solid var(--line-soft)}.box.warn .bh:before{content:"! ";color:var(--leaf-ink)}.box>:last-child{margin-bottom:12px}.box ul,.box ol{margin:6px 0 12px}.flow{flex-wrap:wrap;align-items:center;gap:6px;margin:22px 0;padding:0;list-style:none;display:flex}.flow li{align-items:center;gap:6px;font-size:15px;display:inline-flex}.flow li span{border:var(--stroke) solid var(--ink);border-radius:var(--radius);padding:4px 10px}.flow li+li:before{content:"→";color:var(--leaf-ink);font-weight:700}.pager{border-top:1px solid var(--line-soft);gap:12px;margin-top:40px;padding-top:8px;display:grid}@media (width>=640px){.pager{grid-template-columns:1fr 1fr}.pager .next{text-align:right;grid-column:2}.pager .next .row{justify-content:flex-end}}.pager a{color:var(--ink);padding:14px 0;text-decoration:none;display:block}.pager small{color:var(--ink-2);font-size:14px;display:block}.pager b{font:700 21px/1.3 var(--display)}.pager a:hover b{color:var(--leaf-ink)}.note-fine{color:var(--ink-2);border-top:1px solid var(--line-soft);margin-top:28px;padding-top:14px;font-size:14.5px}.search-box{gap:8px;margin:18px 0 8px;display:flex}.search-box input{min-width:0;min-height:48px;font:400 17px var(--text);color:var(--ink);background:var(--paper);border:var(--stroke) solid var(--ink);border-radius:var(--radius);flex:1;padding:0 14px}.search-box button{min-height:48px}#search-status{min-height:1.6em;color:var(--ink-2);font-size:15px}.rows mark{background:var(--leaf-tint);color:inherit}.lost{text-align:center;padding-top:40px}.lost svg{width:96px;height:96px;color:var(--ink);margin:0 auto 18px}.lost h1{font:700 30px/1.3 var(--display);margin-bottom:10px}.lost .btn{margin:8px 6px 0}.more{margin-top:20px}.lvl{color:var(--leaf-ink);font-weight:700}.kicker .lvl{border:var(--stroke) solid var(--leaf);border-radius:var(--radius);align-items:center;min-height:30px;padding:0 10px;display:inline-flex}.kicker .lvl.advanced{background:var(--leaf);color:var(--on-leaf)}.kicker .lvl.intermediate{background:var(--leaf-tint)}.level-sec{margin-top:28px}.more-sec{margin-top:40px}.shot{margin:24px 0 28px}.shot .frame{border:var(--stroke) solid var(--ink);border-radius:var(--radius);background:#fff;display:block;position:relative;overflow:hidden}.shot img{width:100%;height:auto}.shot.phone .frame{max-width:340px;margin:0 auto}.shot.phone .marks{max-width:340px;margin-left:auto;margin-right:auto}:is(.shot,.focus) .mark{border:3px solid var(--leaf);border-radius:var(--radius);pointer-events:none;position:absolute;box-shadow:0 0 0 2px #fff}:is(.shot,.focus) .mark b,.marks b{background:var(--leaf);min-width:26px;height:26px;color:var(--on-leaf);font:700 15px/1 "Inter", var(--text);border-radius:0 0 var(--radius) 0;justify-content:center;align-items:center;padding:0 6px;display:inline-flex}:is(.shot,.focus) .mark b{border-radius:var(--radius) var(--radius) 0 0;position:absolute;bottom:100%;left:-3px}:is(.shot,.focus) .mark.low b{border-radius:0 0 var(--radius) var(--radius);top:100%;bottom:auto}.marks{margin:12px 0 0;padding:0;list-style:none}.marks li{align-items:flex-start;gap:10px;margin:0 0 8px;font-size:16px;line-height:1.55;display:flex}.marks li b{border-radius:var(--radius) 0 var(--radius) 0;flex:none;margin-top:1px}.expressive-code pre[data-language=text] code,.expressive-code pre[data-language=text] .ec-line{font-size:16px;line-height:1.6;font-family:var(--text)!important}.shot .pan{overflow-x:auto}.shot.desktop .frame{min-width:600px}.shot .enlarge{color:var(--ink-2);margin:6px 0 0;font-size:14px;display:none}@media (width<=640px){.shot .enlarge{display:block}}.prose .expressive-code{margin:22px 0}.adm .site-header .wrap{flex-wrap:wrap;height:auto;min-height:64px}.adm-nav{flex-wrap:wrap}.adm-nav [aria-current=true]{background:var(--leaf-tint)}.adm-main{max-width:1280px;padding-top:24px;padding-bottom:60px}.adm-main h1{font:700 30px/1.3 var(--display);margin-bottom:6px}.adm-main h2{margin:22px 0 10px;font-size:18px}.adm-card{max-width:560px;margin:0 0 24px;padding:20px}.adm-form{gap:12px;display:grid}.adm-form label{gap:4px;font-size:15px;font-weight:700;display:grid}.adm-form input,.adm-form select,.adm-form textarea,.adm-row select{font:400 16px var(--text);border:var(--line) solid var(--ink);border-radius:var(--radius);background:var(--card);min-height:44px;color:var(--ink);padding:10px 12px}.adm-form button{justify-self:start}.adm-msg:empty{display:none}.adm-msg{border-radius:var(--radius);background:var(--leaf-tint);padding:10px 14px;font-weight:700}.adm-msg.bad{color:#8a1c10;background:#fbe4e1}.adm-warn{color:#5a4200;background:#fff4d6;margin:12px 0;padding:12px 16px}.adm-stats{grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:18px;margin:18px 0;display:grid}.adm-stat{gap:2px;padding:14px 16px;display:grid}.adm-stat b{font:700 28px/1.1 "Inter", var(--text)}.adm-stat span{color:var(--ink-2);font-size:14px}.adm-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));align-items:start;gap:0 24px;display:grid}.adm-table{border:var(--stroke) solid var(--ink);border-radius:var(--radius);background:var(--card);overflow-x:auto}.adm-table table{border-collapse:collapse;width:100%;font-size:14.5px}.adm-table th,.adm-table td{text-align:left;border-bottom:1px solid var(--line-soft);vertical-align:top;padding:8px 10px}.adm-table th{white-space:nowrap;font-weight:700}.adm-row{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.adm-small{min-height:36px;box-shadow:0 3px 0 var(--ink);padding:0 12px;font-size:14px}.mono{font-family:var(--mono);word-break:break-all;font-size:13px}.qr svg{border-radius:var(--radius);background:#fff;width:200px;height:200px;padding:6px}.codes{font:700 18px/1.8 var(--mono);background:var(--card);border-radius:var(--radius);padding:12px 16px}
