:root{--bg-main: #020617;--bg-card: #0f172a;--bg-card2: #0a0f1e;--purple: #7c3aed;--pink: #ec4899;--purple-light: #a78bfa;--text-muted: #94a3b8}
*{box-sizing: border-box}
body{font-family:system-ui,-apple-system,"Segoe UI","Noto Sans Bengali",sans-serif;background: var(--bg-main);color: #e2e8f0;min-height: 100vh}
a{color: inherit;text-decoration: none}
.navbar{background: rgba(2,6,23,0.97);border-bottom: 1px solid rgba(124,58,237,0.25);padding: 0.75rem 0}
.navbar-brand img{height: 38px}
.navbar-toggler{border-color: rgba(124,58,237,0.5)}
.navbar-toggler-icon{filter: invert(1)}
.nav-link{color: #c4b5fd !important;font-size: 0.9rem;padding: 0.4rem 0.75rem !important;transition: color 0.2s}
.nav-link:hover{color: #ec4899 !important}
.breadcrumb-wrap{background: rgba(15,23,42,0.8);border-bottom: 1px solid rgba(124,58,237,0.15);padding: 0.6rem 0}
.breadcrumb{margin: 0;background: none;padding: 0}
.breadcrumb-item a{color: #a78bfa}
.breadcrumb-item.active{color: #ec4899}
.breadcrumb-item + .breadcrumb-item::before{color: #6b7280}
.hero{background: linear-gradient(135deg, #0a0118 0%, #1a0533 40%, #0d1117 100%);border-bottom: 1px solid rgba(124,58,237,0.2);padding: 4.5rem 0 3.5rem;position: relative;overflow: hidden}
.hero::before{content: "";position: absolute;top: -80px;left: 50%;transform: translateX(-50%);width: 700px;height: 400px;background: radial-gradient(ellipse, rgba(124,58,237,0.18) 0%, transparent 70%);pointer-events: none}
.hero-badge{display: inline-block;background: linear-gradient(90deg, rgba(124,58,237,0.25), rgba(236,72,153,0.2));border: 1px solid rgba(124,58,237,0.4);color: #c4b5fd;font-size: 0.8rem;padding: 0.3rem 1rem;border-radius: 50px;margin-bottom: 1.2rem;letter-spacing: 0.05em}
.hero h1{font-size: clamp(1.6rem, 4vw, 2.6rem);font-weight: 700;line-height: 1.35;color: #f1f5f9}
.grad-text{background: linear-gradient(90deg, #a78bfa, #ec4899);-webkit-background-clip: text;-webkit-text-fill-color: transparent;background-clip: text}
.hero-sub{color: #94a3b8;font-size: 0.97rem;max-width: 620px;margin: 1rem 0 0;line-height: 1.85}
.btn-neon{background: linear-gradient(90deg, #7c3aed, #ec4899);color: #fff;border: none;padding: 0.65rem 1.8rem;border-radius: 50px;font-weight: 600;font-size: 0.95rem;transition: opacity 0.2s, transform 0.2s;display: inline-block}
.btn-neon:hover{opacity: 0.88;transform: translateY(-2px);color: #fff}
.btn-outline-neon{background: transparent;color: #a78bfa;border: 1.5px solid #7c3aed;padding: 0.65rem 1.8rem;border-radius: 50px;font-weight: 600;font-size: 0.95rem;transition: all 0.2s;display: inline-block}
.btn-outline-neon:hover{background: rgba(124,58,237,0.15);color: #c4b5fd}
.toc-card{background: var(--bg-card);border: 1px solid rgba(124,58,237,0.2);border-radius: 16px;padding: 1.6rem;position: sticky;top: 80px}
.toc-card h6{color: #a78bfa;font-weight: 600;font-size: 0.85rem;text-transform: uppercase;letter-spacing: 0.06em;margin-bottom: 1rem}
.toc-list{list-style: none;padding: 0;margin: 0}
.toc-list li{margin-bottom: 0.4rem}
.toc-list li a{color: #64748b;font-size: 0.87rem;display: flex;align-items: center;gap: 0.5rem;padding: 0.35rem 0.6rem;border-radius: 8px;transition: all 0.2s}
.toc-list li a:hover{color: #c4b5fd;background: rgba(124,58,237,0.1)}
.toc-list li a i{color: #7c3aed;font-size: 0.7rem}
section{padding: 4rem 0}
.section-alt{background: var(--bg-card2)}
.section-title{font-size: clamp(1.3rem, 3vw, 2rem);font-weight: 700;color: #f1f5f9;margin-bottom: 0.5rem}
.section-sub{color: #94a3b8;font-size: 0.95rem;max-width: 560px;margin: 0 auto;line-height: 1.75}
.divider-neon{width: 60px;height: 3px;background: linear-gradient(90deg, #7c3aed, #ec4899);border-radius: 2px;margin: 0.8rem auto 1.5rem}
.divider-neon.left{margin-left: 0}
.terms-section{background: var(--bg-card);border: 1px solid rgba(124,58,237,0.15);border-radius: 16px;padding: 2rem;margin-bottom: 1.5rem;scroll-margin-top: 90px}
.terms-section:hover{border-color: rgba(124,58,237,0.3)}
.terms-section-header{display: flex;align-items: center;gap: 1rem;margin-bottom: 1.2rem;padding-bottom: 1rem;border-bottom: 1px solid rgba(124,58,237,0.12)}
.terms-icon{width: 46px;height: 46px;flex-shrink: 0;background: linear-gradient(135deg, rgba(124,58,237,0.25), rgba(236,72,153,0.15));border: 1px solid rgba(124,58,237,0.3);border-radius: 12px;display: flex;align-items: center;justify-content: center;font-size: 1.2rem;color: #a78bfa}
.terms-section h3{color: #f1f5f9;font-weight: 600;font-size: 1.1rem;margin: 0}
.terms-section p{color: #94a3b8;font-size: 0.92rem;line-height: 1.9;margin-bottom: 0.8rem}
.terms-section p:last-child{margin-bottom: 0}
.terms-section ul{padding-left: 1.2rem;margin: 0.5rem 0 0.8rem}
.terms-section ul li{color: #94a3b8;font-size: 0.92rem;line-height: 1.85;margin-bottom: 0.4rem}
.terms-section ul li::marker{color: #7c3aed}
.feat-card{background: var(--bg-card);border: 1px solid rgba(124,58,237,0.18);border-radius: 18px;padding: 1.8rem 1.5rem;height: 100%;transition: border-color 0.25s, transform 0.25s;position: relative;overflow: hidden}
.feat-card::before{content: "";position: absolute;top: 0;left: 0;right: 0;height: 3px;background: linear-gradient(90deg, #7c3aed, #ec4899);opacity: 0;transition: opacity 0.25s}
.feat-card:hover{border-color: rgba(236,72,153,0.4);transform: translateY(-4px)}
.feat-card:hover::before{opacity: 1}
.feat-card .icon-wrap{width: 52px;height: 52px;background: linear-gradient(135deg, rgba(124,58,237,0.25), rgba(236,72,153,0.15));border: 1px solid rgba(124,58,237,0.3);border-radius: 14px;display: flex;align-items: center;justify-content: center;font-size: 1.3rem;color: #a78bfa;margin-bottom: 1rem}
.feat-card h5{color: #f1f5f9;font-weight: 600;font-size: 1rem;margin-bottom: 0.6rem}
.feat-card p{color: #94a3b8;font-size: 0.88rem;line-height: 1.8;margin: 0}
.highlight-box{background: linear-gradient(135deg, rgba(124,58,237,0.12), rgba(236,72,153,0.08));border: 1px solid rgba(124,58,237,0.3);border-radius: 12px;padding: 1.2rem 1.4rem;color: #c4b5fd;font-size: 0.9rem;line-height: 1.75}
.highlight-box i{color: #ec4899}
.warning-box{background: rgba(236,72,153,0.08);border: 1px solid rgba(236,72,153,0.25);border-radius: 12px;padding: 1rem 1.3rem;color: #f9a8d4;font-size: 0.88rem;line-height: 1.75}
.last-updated{background: var(--bg-card);border: 1px solid rgba(124,58,237,0.15);border-radius: 10px;padding: 0.8rem 1.2rem;color: #64748b;font-size: 0.83rem;display: inline-flex;align-items: center;gap: 0.5rem}
.cta-section{background: linear-gradient(135deg, #0a0118 0%, #1a0533 50%, #0d1117 100%);padding: 5rem 0;position: relative;overflow: hidden}
.cta-glow{position: absolute;top: 50%;left: 50%;transform: translate(-50%,-50%);width: 600px;height: 300px;background: radial-gradient(ellipse, rgba(124,58,237,0.18) 0%, transparent 70%);pointer-events: none}
footer{background: #020617;border-top: 1px solid rgba(124,58,237,0.2);padding: 3rem 0 1.5rem}
footer h6{color: #a78bfa;font-weight: 600;margin-bottom: 1rem;font-size: 0.9rem;text-transform: uppercase;letter-spacing: 0.05em}
footer ul{list-style: none;padding: 0;margin: 0}
footer ul li{margin-bottom: 0.5rem}
footer ul li a{color: #64748b;font-size: 0.88rem;transition: color 0.2s}
footer ul li a:hover{color: #ec4899}
.footer-desc{color: #475569;font-size: 0.87rem;line-height: 1.7}
.footer-bottom{border-top: 1px solid rgba(124,58,237,0.12);margin-top: 2rem;padding-top: 1.2rem;color: #475569;font-size: 0.82rem}
@media  (max-width: 991px) {.toc-card{position: static;margin-bottom: 2rem}}