body, .navbar, footer, .section-card, .feature-card, .note-box, .author-box, input, button, select, textarea {
    font-family: 'Poppins', 'Noto Sans Bengali', 'Hind Siliguri', 'SolaimanLipi', sans-serif;
    line-height: 1.75;
    letter-spacing: 0.01em;
}
body {
    background-image: radial-gradient(circle at 15% 20%, rgba(59, 130, 246, 0.08), transparent 40%), radial-gradient(circle at 85% 80%, rgba(250, 204, 21, 0.06), transparent 45%);
}
.section-card, .feature-card, .note-box, .author-box, .bd-hot-links {
    border-radius: 14px;
    padding: 22px;
    background-image: linear-gradient(145deg, rgba(255,255,255,0.98), rgba(240,249,255,0.94));
    border: 1px solid rgba(59, 130, 246, 0.15);
    box-shadow: 0 8px 24px rgba(30, 41, 59, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.feature-card:hover, .section-card:hover, .note-box:hover, .author-box:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 36px rgba(59, 130, 246, 0.16);
    border-color: rgba(59, 130, 246, 0.4);
}
.btn, .site-btn, .btn-ice, .cta-register, .cta-login, .btn-outline-ice {
    border-radius: 9px;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.3s ease, color 0.3s ease;
}
.btn:hover, .site-btn:hover, .btn-ice:hover, .cta-register:hover, .cta-login:hover, .btn-outline-ice:hover {
    transform: scale(1.03);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.35);
}
.btn-primary, .cta-register {
    background-image: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-color: #2563eb;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}
.btn-primary:hover, .cta-register:hover {
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}
.cta-login, .btn-outline-ice {
    background-color: rgba(250, 204, 21, 0.1);
    border-color: rgba(250, 204, 21, 0.4);
    color: #facc15;
}
.cta-login:hover, .btn-outline-ice:hover {
    background-color: #facc15;
    color: #1a2235;
    box-shadow: 0 4px 15px rgba(250, 204, 21, 0.3);
}
h1, h2, h3, h4, h5, h6, .display-6 {
    text-shadow: 0 1px 2px rgba(30, 41, 59, 0.1);
}
.text-warning, [class*="text-gold"], [style*="color:#facc15"], [style*="color: #facc15"], [style*="color:#fbbf24"] {
    color: #facc15;
    text-shadow: 0 0 8px rgba(250, 204, 21, 0.4), 0 1px 1px rgba(0,0,0,0.2);
}
.navbar .nav-link {
    transition: color 0.3s ease, background-color 0.3s ease;
    border-radius: 8px;
}
.navbar .nav-link:hover {
    background-color: rgba(59, 130, 246, 0.1);
}
section.container {
    padding-top: 72px;
    padding-bottom: 72px;
}
@media (max-width: 767.98px) {
    section.container {
        padding-top: 48px;
        padding-bottom: 48px;
    }
}
.form-control, input[type="text"], input[type="email"], input[type="password"], input[type="tel"], select, textarea {
    border-radius: 8px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}
.form-control:focus, input:focus, select:focus, textarea:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
    outline: none;
}
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: #1a2235;
}
::-webkit-scrollbar-thumb {
    background: #3b82f6;
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: #2563eb;
}
html {
    scrollbar-width: thin;
    scrollbar-color: #3b82f6 #1a2235;
}
.footer-main a, footer a {
    transition: color 0.3s ease, text-shadow 0.3s ease;
}
.footer-main a:hover, footer a:hover {
    text-shadow: 0 0 8px rgba(59, 130, 246, 0.4);
}