:root{--ink:#172743;--muted:#66758d;--blue:#1455d8;--line:#e3eaf3;--pale:#f5f8fd}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;background:#f8fafd;color:var(--ink);font:16px/1.7 "Hind Siliguri",sans-serif}a{color:var(--blue);text-underline-offset:3px}button,input{font:inherit}button,a,input,summary{ -webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #ef873f;outline-offset:5px}button{cursor:pointer}[hidden]{display:none!important}.guide-shell{width:min(1160px,calc(100% - 48px));margin-inline:auto}.guide-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.header-inner{min-height:82px;display:flex;align-items:center;gap:35px}.guide-brand{display:block;flex-shrink:0}.guide-brand img{display:block;width:186px;height:auto}.header-inner nav{display:flex;gap:26px;margin-left:auto}.header-inner nav 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@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}