@font-face{font-family:'BD Bangla';src:url('../fonts/FreeSans.ttf') format('truetype');font-weight:400;font-style:normal;font-display:swap}
:root{--primary:#0B3D36;--secondary:#146356;--accent:#F4B942;--bg:#F6F8F7;--card:#fff;--text:#16221F;--muted:#5F6F69;--border:#D9E3DF;--info:#0E7490;--danger:#B42318;--success:#2F855A;--info-bg:#E8F4F7;--danger-bg:#FDECEC;--responsible:#FFF7DF;--shadow:0 12px 32px rgba(11,61,54,.08);--radius:18px;--button-radius:12px;--container:1180px;--reading:760px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:'BD Bangla','Noto Sans Bengali','Hind Siliguri',system-ui,sans-serif;font-size:17px;line-height:1.75;text-rendering:optimizeLegibility}body.drawer-open{overflow:hidden}img{display:block;max-width:100%;height:auto}a{color:var(--secondary);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:var(--primary)}button,input{font:inherit}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:2px}.container{width:min(calc(100% - 40px),var(--container));margin-inline:auto}.skip-link{position:fixed;z-index:9999;left:12px;top:-80px;background:#fff;padding:12px 18px;border-radius:8px}.skip-link:focus{top:12px}.site-header{height:72px;background:rgba(255,255,255,.95);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;backdrop-filter:blur(10px)}.header-inner{height:100%;display:flex;align-items:center;gap:24px}.wordmark{display:inline-flex;align-items:baseline;gap:7px;text-decoration:none;color:var(--text);white-space:nowrap}.wordmark span{font-size:1.35rem;font-weight:800;color:var(--primary);letter-spacing:-.03em}.wordmark small{font-size:.84rem;color:var(--muted)}.desktop-nav{margin-left:auto}.menu,.drawer-menu{list-style:none;margin:0;padding:0}.menu{display:flex;align-items:center;gap:4px}.menu a{display:flex;align-items:center;min-height:44px;padding:8px 10px;text-decoration:none;color:var(--text);font-size:.91rem;border-radius:8px}.menu a:hover,.current-menu-item>a{background:#edf4f1;color:var(--primary)}.header-cta,.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 19px;border:1px solid var(--primary);border-radius:var(--button-radius);background:var(--primary);color:#fff;text-decoration:none;font-weight:700;line-height:1.25}.header-cta{font-size:.9rem;white-space:nowrap}.button:hover,.header-cta:hover{background:#062d28;color:#fff}.button--secondary{background:#fff;color:var(--primary)}.button--secondary:hover{background:#eaf2ef;color:var(--primary)}.menu-toggle{display:none;border:0;background:transparent;width:48px;height:48px;border-radius:10px;padding:9px;align-items:center;justify-content:center;flex-direction:column;gap:4px;color:var(--primary)}.menu-toggle span{width:22px;height:2px;background:currentColor}.menu-toggle b{font-size:.62rem;line-height:1;margin-top:1px}.drawer-overlay{position:fixed;inset:0;background:rgba(4,25,22,.58);z-index:190}.mobile-drawer{position:fixed;z-index:200;right:0;top:0;width:min(88vw,390px);height:100dvh;background:#fff;padding:20px;transform:translateX(105%);transition:transform .25s ease;box-shadow:-16px 0 40px rgba(0,0,0,.16);overflow:auto}.mobile-drawer.is-open{transform:none}.drawer-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);padding-bottom:14px;margin-bottom:12px}.drawer-close{width:48px;height:48px;border:1px solid var(--border);background:#fff;border-radius:10px;font-size:2rem;line-height:1}.drawer-menu a{display:flex;align-items:center;min-height:48px;padding:10px 8px;border-bottom:1px solid var(--border);text-decoration:none;color:var(--text)}.mobile-drawer .button{width:100%;margin-top:22px}
[id]{scroll-margin-top:88px}.hero{padding:72px 0 64px;background:linear-gradient(135deg,#edf4f1,#fff 62%)}.hero-grid{display:grid;grid-template-columns:56fr 44fr;align-items:center;gap:48px}.eyebrow{color:var(--secondary);font-weight:800;letter-spacing:.02em;margin:0 0 12px}.hero h1,.page-hero h1{font-size:clamp(2rem,4vw,3.5rem);line-height:1.13;letter-spacing:-.035em;margin:0 0 20px;max-width:18ch}.hero-copy{font-size:1.14rem;max-width:670px}.hero-actions,.card-actions,.final-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}.hero-visual{border-radius:24px;overflow:hidden;box-shadow:var(--shadow);background:#fff}.section-image{width:100%;border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow);object-fit:cover;aspect-ratio:16/9}.section-image--hero{aspect-ratio:16/10}.image-caption{color:var(--muted);font-size:.92rem;margin:.75rem 0 0}.section{padding:88px 0}.section--tint{background:#edf4f1}.section--white{background:#fff}.section h2,.article-section h2{font-size:clamp(1.65rem,3vw,2.25rem);line-height:1.25;margin:0 0 18px;letter-spacing:-.02em}.section h2:before,.article-section h2:before{content:'';display:inline-block;width:8px;height:.85em;background:var(--accent);border-radius:6px;margin-right:10px;vertical-align:-.04em}.lead{font-size:1.08rem;color:#30423d}.reading{max-width:var(--reading);margin-inline:auto}.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}.task-card,.guide-card,.status-card,.fact-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow)}.task-card h3,.guide-card h3,.status-card h3{margin:10px 0 8px;font-size:1.25rem}.task-card p,.guide-card p{color:var(--muted)}.task-icon{width:48px;height:48px;border-radius:14px;background:#e8f1ee;color:var(--primary);display:grid;place-items:center;font-size:1.5rem;font-weight:800}.text-link{font-weight:800}.info-box,.warning-box,.responsibility-box,.conclusion-box{padding:18px 20px;border-radius:12px;margin:22px 0}.info-box{background:var(--info-bg);border-left:4px solid var(--info)}.warning-box{background:var(--danger-bg);border-left:4px solid var(--danger)}.responsibility-box{background:var(--responsible);border-left:4px solid var(--accent)}.conclusion-box{background:#edf4f1;border-left:4px solid var(--secondary)}.info-box strong,.warning-box strong,.responsibility-box strong,.conclusion-box strong{display:block;margin-bottom:6px}.steps{counter-reset:steps;list-style:none;padding:0;margin:26px 0;display:grid;gap:14px}.steps li{counter-increment:steps;position:relative;padding:18px 20px 18px 68px;background:#fff;border:1px solid var(--border);border-radius:14px}.steps li:before{content:counter(steps);position:absolute;left:18px;top:18px;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:var(--primary);color:#fff;font-weight:800}.checklist{list-style:none;padding:0}.checklist li{position:relative;padding:8px 0 8px 32px}.checklist li:before{content:'✓';position:absolute;left:0;top:8px;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;background:#e4f2ea;color:var(--success);font-weight:900;font-size:.85rem}.symptom-grid,.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:24px}.symptom-card{padding:20px;background:#fff;border:1px solid var(--border);border-radius:14px}.symptom-card h3{margin-top:0}.faq-list{display:grid;gap:12px}.faq-item{background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden}.faq-item summary{cursor:pointer;list-style:none;min-height:54px;padding:16px 52px 16px 18px;font-weight:800;position:relative}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:'+';position:absolute;right:18px;top:10px;font-size:1.6rem;color:var(--secondary);transition:transform .2s}.faq-item[open] summary:after{transform:rotate(45deg)}.faq-item[open]{border-left:4px solid var(--secondary)}.faq-answer{padding:0 18px 18px;color:#30423d}.faq-answer p:last-child{margin-bottom:0}.page-hero{padding:48px 0 32px;background:#edf4f1;border-bottom:1px solid var(--border)}.breadcrumb{font-size:.9rem;margin-bottom:16px;color:var(--muted)}.breadcrumb a{color:var(--muted)}.article-layout{display:grid;grid-template-columns:minmax(0,var(--reading)) 270px;gap:52px;align-items:start;padding:48px 0 88px}.article-main{min-width:0}.article-section{padding:34px 0;border-bottom:1px solid var(--border)}.article-section:first-child{padding-top:0}.article-section h3{font-size:1.28rem;margin:24px 0 10px}.toc{position:sticky;top:96px;background:#fff;border:1px solid var(--border);border-radius:14px;padding:18px}.toc strong{display:block;margin-bottom:10px}.toc a{display:block;padding:7px 0;border-bottom:1px solid #edf0ef;text-decoration:none;font-size:.9rem}.related{padding:38px 0}.related-grid{grid-template-columns:repeat(3,1fr)}.category-table{width:100%;border-collapse:collapse;margin:24px 0}.category-table th,.category-table td{text-align:left;border:1px solid var(--border);padding:13px;vertical-align:top}.category-table th{background:#edf4f1}.faq-filter{width:100%;min-height:50px;border:1px solid var(--border);border-radius:12px;padding:10px 14px;margin:0 0 24px;background:#fff}.filter-empty{padding:22px;background:#fff;border-radius:12px;border:1px solid var(--border)}.site-footer{background:#10231f;color:#eaf2ef;padding:60px 0 26px}.footer-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:36px}.site-footer h2{font-size:1rem;color:#fff;margin:0 0 10px}.site-footer ul{list-style:none;padding:0;margin:0 0 20px}.site-footer li{margin:6px 0}.site-footer a{color:#fff}.site-footer p{color:#c5d2cd}.wordmark--footer span,.wordmark--footer small{color:#fff}.footer-note{border-top:1px solid rgba(255,255,255,.18);margin-top:36px;padding-top:22px}.footer-note p{max-width:980px;margin:0}.error-page{padding:80px 0;min-height:55vh}.review-date{color:var(--muted);font-size:.9rem}
@media(max-width:1100px){.desktop-nav,.header-cta{display:none}.menu-toggle{display:flex;margin-left:auto}.article-layout{grid-template-columns:1fr}.toc{position:static;order:-1}.quick-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:767px){body{font-size:16px}.container{width:min(calc(100% - 36px),var(--container))}.site-header{height:60px}.hero{padding:44px 0}.hero-grid,.split{grid-template-columns:1fr;gap:28px}.hero h1,.page-hero h1{font-size:32px}.hero-actions .button,.final-actions .button{width:100%}.hero-visual{order:2}.section{padding:48px 0}.quick-grid,.symptom-grid,.related-grid,.footer-grid{grid-template-columns:1fr}.task-card{padding:20px}.article-layout{padding:34px 0 58px}.article-section{padding:28px 0}.toc{display:none}.footer-grid{gap:18px}.site-footer{padding-top:44px}.category-table,.category-table tbody,.category-table tr,.category-table td{display:block;width:100%}.category-table thead{position:absolute;clip:rect(0 0 0 0)}.category-table tr{border:1px solid var(--border);border-radius:12px;margin-bottom:12px;background:#fff}.category-table td{border:0;border-bottom:1px solid var(--border);padding-left:42%}.category-table td:before{content:attr(data-label);font-weight:800;position:absolute;left:14px;width:36%}.category-table td{position:relative}.category-table td:last-child{border-bottom:0}.section-image--hero{aspect-ratio:4/3;object-position:center}.page-hero{padding-top:36px}}
@media(max-width:390px){.container{width:min(calc(100% - 40px),var(--container))}.quick-grid{grid-template-columns:1fr}.button{width:100%}.steps li{padding-left:60px}.steps li:before{left:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.mobile-drawer,.faq-item summary:after{transition:none}}
.site-footer .footer-label{font-size:1rem;color:#fff;margin:0 0 10px;font-weight:700}
.container.reading.conclusion-box{margin:22px auto}
.wordmark-logo{width:42px;height:42px;flex:0 0 42px;border-radius:9px;object-fit:cover}