/* Sondhan guides — shared stylesheet (no JS). Brand: red #c0392b, Hind Siliguri. */
*{box-sizing:border-box;margin:0;padding:0}
:root{--red:#c0392b;--red2:#e74c3c;--tint:#fdecea;--ink:#222;--mute:#6b6b6b;--line:#eee;--bg:#f7f4f3}
html{scroll-behavior:smooth}
body{font-family:'Hind Siliguri','Inter',system-ui,sans-serif;background:var(--bg);color:var(--ink);line-height:1.9;font-size:16.5px;-webkit-text-size-adjust:100%}
a{color:var(--red);text-underline-offset:3px}
.top{background:linear-gradient(135deg,var(--red),var(--red2));position:sticky;top:0;z-index:5;box-shadow:0 2px 10px rgba(192,57,43,.25)}
.top-in{max-width:720px;margin:0 auto;padding:10px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.top img{height:28px;width:auto;display:block}
.top a{color:#fff;text-decoration:none;font-weight:700;font-size:14px}
.top .pill{background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.35);padding:5px 14px;border-radius:20px}
main{max-width:720px;margin:0 auto;padding:18px 16px 8px}
nav.bc{font-size:13px;color:var(--mute);margin-bottom:10px}
nav.bc a{color:var(--red);text-decoration:none}
h1{font-size:27px;line-height:1.45;font-weight:800;letter-spacing:-.2px;margin-bottom:8px}
.meta{font-size:13px;color:var(--mute);margin-bottom:18px;display:flex;flex-wrap:wrap;gap:6px 14px}
.meta span::before{content:"•";margin-right:6px;color:#ccc}
.meta span:first-child::before{content:none}
.summary{background:#fff;border:1px solid #f3d9d5;border-left:5px solid var(--red);border-radius:14px;padding:16px 18px;margin-bottom:16px;box-shadow:0 2px 10px rgba(0,0,0,.04)}
.summary::before{content:"সংক্ষেপে";display:block;font-size:12px;font-weight:800;color:var(--red);letter-spacing:.6px;margin-bottom:4px}
.summary p{margin:0}
.toc{background:#fff;border-radius:14px;padding:14px 18px 10px;margin-bottom:6px;box-shadow:0 1px 6px rgba(0,0,0,.05)}
.toc b{display:block;font-size:13px;color:var(--mute);margin-bottom:6px}
.toc ol{list-style:none;counter-reset:t;padding:0}
.toc li{counter-increment:t;margin:0}
.toc a{display:flex;gap:10px;padding:6px 0;text-decoration:none;color:var(--ink);font-size:15px;border-top:1px solid var(--line)}
.toc li:first-child a{border-top:0}
.toc a::before{content:counter(t);flex:none;width:22px;height:22px;border-radius:50%;background:var(--tint);color:var(--red);font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-top:5px}
.toc a:hover{color:var(--red)}
article{counter-reset:s}
h2{counter-increment:s;font-size:20px;line-height:1.5;margin:30px 0 10px;padding-left:44px;position:relative;color:#2b2b2b;scroll-margin-top:70px}
h2::before{content:counter(s);position:absolute;left:0;top:2px;width:32px;height:32px;border-radius:10px;background:linear-gradient(135deg,var(--red),var(--red2));color:#fff;font-size:15px;font-weight:800;display:flex;align-items:center;justify-content:center}
article>p,article>ul,article>ol,article>table{margin-bottom:12px}
p,li{margin-bottom:8px}
ul,ol{padding-left:24px}
li::marker{color:var(--red)}
.card{background:#fff;border-radius:14px;padding:16px 18px;box-shadow:0 1px 8px rgba(0,0,0,.05);margin-bottom:12px}
.card h2{margin-top:0}
table{width:100%;border-collapse:separate;border-spacing:0;font-size:14.5px;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 1px 8px rgba(0,0,0,.05)}
th,td{padding:10px 12px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
th{background:var(--tint);color:#7b241c;font-size:13.5px}
tr:last-child td{border-bottom:0}
tbody tr:nth-child(even) td{background:#fcf8f7}
.note{background:#fff8e6;border:1px solid #f1d58a;border-radius:12px;padding:12px 14px;font-size:14px;line-height:1.75;margin:16px 0}
.cta-row{background:linear-gradient(135deg,#fff,#fdf1ef);border:1px solid #f3d9d5;border-radius:16px;padding:16px;margin:22px 0;display:flex;flex-wrap:wrap;gap:10px}
.cta,.cta-row a{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 20px;border-radius:12px;font-weight:700;text-decoration:none;color:#fff;background:var(--red);box-shadow:0 4px 12px rgba(192,57,43,.25);transition:transform .15s,box-shadow .15s}
.cta:hover,.cta-row a:hover{transform:translateY(-1px)}
.cta:focus-visible,.cta-row a:focus-visible,.toc a:focus-visible,.rel a:focus-visible{outline:3px solid #8e44ad;outline-offset:3px}
.rel{margin:28px 0 6px}
.rel>b{display:block;font-size:15px;margin-bottom:10px}
.rel-grid{display:grid;grid-template-columns:1fr;gap:10px}
.rel a{display:block;background:#fff;border-radius:12px;padding:12px 14px;text-decoration:none;color:var(--ink);box-shadow:0 1px 6px rgba(0,0,0,.05);border-left:4px solid var(--red)}
.rel a strong{display:block;color:var(--red);font-size:15px;line-height:1.5}
.rel a span{display:block;font-size:13px;color:var(--mute);line-height:1.6;margin-top:2px}
footer{max-width:720px;margin:0 auto;padding:12px 16px 44px;font-size:13px;color:var(--mute);border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:6px 16px}
footer a{color:var(--red);text-decoration:none}
/* hub */
.hub{display:grid;gap:12px;margin-bottom:12px;counter-reset:h}
.hub a{counter-increment:h;display:block;background:#fff;border-radius:14px;padding:14px 16px 14px 62px;text-decoration:none;color:var(--ink);box-shadow:0 1px 8px rgba(0,0,0,.05);position:relative;transition:transform .15s,box-shadow .15s}
.hub a::before{content:counter(h);position:absolute;left:14px;top:14px;width:36px;height:36px;border-radius:11px;background:linear-gradient(135deg,var(--red),var(--red2));color:#fff;font-weight:800;display:flex;align-items:center;justify-content:center}
.hub a:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.08)}
.hub strong{display:block;color:var(--red);font-size:17px;line-height:1.5}
.hub span{display:block;font-size:13.5px;color:var(--mute);line-height:1.65;margin-top:3px}
/* faq */
.qa{counter-reset:q}
.qa .card{counter-increment:q;padding:14px 16px 12px 58px;position:relative}
.qa .card::before{content:"?";position:absolute;left:14px;top:14px;width:32px;height:32px;border-radius:50%;background:var(--tint);color:var(--red);font-weight:800;display:flex;align-items:center;justify-content:center}
.qa .card h2{padding-left:0;font-size:17px;margin-bottom:4px}
.qa .card h2::before{content:none}
@media (min-width:640px){.rel-grid{grid-template-columns:1fr 1fr}h1{font-size:30px}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}