:root{--primary:#D71921;--primary-hover:#b51219;--primary-light:#fef2f2;--primary-border:#fecaca;--navy-top:#D71921;--navy-btn:#D71921;--navy-btn-hover:#b51219;--navy-footer:#a91219;--bg-body:#ffffff;--bg-card:#ffffff;--bg-subtle:#f5f6f8;--bg-hover:#fff1f2;--border-color:#e5eaf2;--border-light:#eff3f8;--border-dark:#cbd5e1;--text-main:#111827;--text-body:#1e293b;--text-muted:#526279;--text-light:#8a9bb2;--text-link:#D71921;--font-serif:'Libre Baskerville', Georgia, 'Noto Serif Bengali', serif;--font-sans:'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;--max-width:1240px;--radius-xs:3px;--radius-sm:5px;--radius-md:8px;--radius-lg:12px;--shadow-sm:0 1px 3px rgba(15, 34, 64, 0.04);--shadow-md:0 4px 14px rgba(15, 34, 64, 0.06);--shadow-lg:0 10px 25px rgba(15, 34, 64, 0.08);--transition-fast:0.15s ease;--transition-normal:0.25s ease}*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:var(--font-sans);background-color:var(--bg-body);color:var(--text-body);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{color:inherit;text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary)}img{max-width:100%;height:auto;display:block}ul,ol{list-style:none}.container{width:100%;max-width:var(--max-width);margin-left:auto;margin-right:auto;padding-left:18px;padding-right:18px}