:root{--gold:#C9A84C;--gold-light:#F0D080;--gold-dark:#8B6914;--navy:#0D1B2A;--navy-mid:#142232;--navy-soft:#1C2E42;--text-light:#E8D9B5;--text-muted:#8FA3B8;}
    *{box-sizing:border-box;margin:0;padding:0;}
    body{font-family:'Noto Sans Bengali',sans-serif;background:var(--navy);color:#fff;overflow-x:hidden;}
    h1,h2,h3,h4,h5,h6{font-family:'Noto Serif Bengali',serif;}
    .ticker-bar{background:var(--navy-mid);border-bottom:1px solid rgba(201,168,76,0.15);font-size:.8rem;color:var(--text-muted);padding:6px 0;overflow:hidden;}
    .ticker-inner{display:flex;gap:40px;animation:tickerScroll 30s linear infinite;white-space:nowrap;}
    .ticker-item{display:flex;gap:8px;align-items:center;}
    .ticker-item .label{color:var(--text-muted);}.ticker-item .value{color:var(--gold-light);font-weight:600;}.ticker-item .up{color:#4ade80;}.ticker-item .down{color:#f87171;}
    @keyframes tickerScroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
    .navbar{background:rgba(13,27,42,0.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(201,168,76,0.2);padding:14px 0;position:sticky;top:0;z-index:1000;}
    .navbar-brand{font-family:'Noto Serif Bengali',serif;font-size:1.5rem;font-weight:700;color:var(--gold)!important;letter-spacing:.5px;}
    .navbar-brand span{color:#fff;}
    .nav-link{color:var(--text-light)!important;font-size:.92rem;font-weight:500;padding:6px 14px!important;transition:color .2s;}
    .nav-link:hover,.nav-link.active{color:var(--gold)!important;}
    .btn-nav-login{border:1.5px solid var(--gold);color:var(--gold);border-radius:6px;padding:6px 18px;font-size:.88rem;font-weight:600;transition:all .25s;background:transparent;}
    .btn-nav-login:hover{background:var(--gold);color:var(--navy);}
    .btn-nav-reg{background:linear-gradient(135deg,var(--gold),var(--gold-dark));color:var(--navy);border:none;border-radius:6px;padding:6px 18px;font-size:.88rem;font-weight:700;transition:opacity .25s;}
    .btn-nav-reg:hover{opacity:.85;color:var(--navy);}
    .gold-divider{height:1px;background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:.2;}
    .section-label{font-size:.78rem;font-weight:700;color:var(--gold);letter-spacing:2px;text-transform:uppercase;margin-bottom:8px;}
    .section-title{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:700;color:#fff;line-height:1.3;}
    .section-title .gold{color:var(--gold);}
    .gold-text{background:linear-gradient(90deg,var(--gold),var(--gold-light));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
    .fade-up{opacity:0;transform:translateY(26px);transition:opacity .55s ease,transform .55s ease;}
    .fade-up.visible{opacity:1;transform:translateY(0);}
    .delay-1{transition-delay:.1s}.delay-2{transition-delay:.2s}.delay-3{transition-delay:.3s}.delay-4{transition-delay:.4s}

    /* PAGE HERO */
    .page-hero{background:radial-gradient(ellipse 80% 70% at 50% 0%,rgba(201,168,76,0.11) 0%,transparent 65%),var(--navy);padding:72px 0 60px;text-align:center;position:relative;overflow:hidden;}
    .page-hero::before{content:'';position:absolute;inset:0;background-image:radial-gradient(circle,rgba(201,168,76,0.05) 1px,transparent 1px);background-size:40px 40px;pointer-events:none;}
    .breadcrumb-nav{display:inline-flex;align-items:center;gap:8px;font-size:.8rem;color:var(--text-muted);margin-bottom:18px;}
    .breadcrumb-nav a{color:var(--gold);text-decoration:none;}

    /* CERTIFICATE PREVIEW */
    .cert-preview{
      background:linear-gradient(145deg,#0D1B2A 0%,#142232 40%,#1C2E42 100%);
      border:1px solid rgba(201,168,76,0.4);
      border-radius:20px;
      padding:36px;
      position:relative;
      overflow:hidden;
      box-shadow:0 20px 60px rgba(0,0,0,0.5),inset 0 0 60px rgba(201,168,76,0.03);
    }
    .cert-preview::before{content:'';position:absolute;inset:8px;border:1px solid rgba(201,168,76,0.15);border-radius:14px;pointer-events:none;}
    .cert-preview::after{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--gold-dark),var(--gold-light),var(--gold),var(--gold-light),var(--gold-dark));}
    .cert-watermark{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:8rem;color:rgba(201,168,76,0.04);font-weight:700;pointer-events:none;white-space:nowrap;font-family:'Noto Serif Bengali',serif;}
    .cert-header{text-align:center;margin-bottom:28px;position:relative;}
    .cert-logo{font-family:'Noto Serif Bengali',serif;font-size:1.6rem;font-weight:700;color:var(--gold);margin-bottom:4px;}
    .cert-subtitle{font-size:.75rem;color:var(--text-muted);letter-spacing:2px;text-transform:uppercase;}
    .cert-title-main{font-family:'Noto Serif Bengali',serif;font-size:1.3rem;font-weight:700;color:var(--gold-light);margin:16px 0 6px;letter-spacing:1px;}
    .cert-serial{font-size:.72rem;color:var(--text-muted);letter-spacing:1px;}
    .cert-divider{height:1px;background:linear-gradient(90deg,transparent,rgba(201,168,76,0.3),transparent);margin:20px 0;}
    .cert-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
    .cert-field{background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.06);border-radius:10px;padding:12px 14px;}
    .cert-field .cf-label{font-size:.68rem;color:var(--text-muted);letter-spacing:1px;text-transform:uppercase;margin-bottom:4px;}
    .cert-field .cf-val{font-size:.88rem;font-weight:600;color:var(--text-light);font-family:'Noto Serif Bengali',serif;}
    .cert-field .cf-val.gold{color:var(--gold-light);}
    .cert-qr{width:80px;height:80px;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.1);border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:2.2rem;}
    .cert-footer{display:flex;align-items:center;justify-content:space-between;margin-top:20px;padding-top:16px;border-top:1px solid rgba(201,168,76,0.1);}
    .cert-badge{display:inline-flex;align-items:center;gap:5px;background:rgba(74,222,128,0.1);border:1px solid rgba(74,222,128,0.25);border-radius:20px;padding:4px 12px;font-size:.7rem;color:#4ade80;font-weight:600;}
    .cert-sig{font-size:.7rem;color:var(--text-muted);text-align:right;}
    .cert-sig strong{display:block;color:var(--text-light);margin-bottom:2px;}

    /* VERIFY BOX */
    .verify-card{background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.07);border-radius:20px;padding:36px;position:relative;overflow:hidden;}
    .verify-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--gold),var(--gold-light),var(--gold));}
    .verify-input{width:100%;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.1);border-radius:11px;color:#fff;font-family:'Noto Sans Bengali',sans-serif;font-size:.9rem;padding:13px 16px;outline:none;transition:border-color .25s,box-shadow .25s;}
    .verify-input:focus{border-color:rgba(201,168,76,0.6);box-shadow:0 0 0 3px rgba(201,168,76,0.1);background:rgba(201,168,76,0.04);}
    .verify-input::placeholder{color:var(--text-muted);}
    .btn-verify{background:linear-gradient(135deg,var(--gold),var(--gold-dark));color:var(--navy);font-weight:700;font-size:.95rem;border:none;border-radius:11px;padding:13px 28px;cursor:pointer;font-family:'Noto Sans Bengali',sans-serif;transition:all .25s;white-space:nowrap;}
    .btn-verify:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(201,168,76,0.35);}

    /* VERIFY RESULT */
    .result-valid{background:rgba(74,222,128,0.08);border:1px solid rgba(74,222,128,0.3);border-radius:14px;padding:24px;display:none;}
    .result-invalid{background:rgba(248,113,113,0.08);border:1px solid rgba(248,113,113,0.3);border-radius:14px;padding:24px;display:none;}

    /* FEATURE CARDS */
    .feat-card{background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.07);border-radius:16px;padding:26px 22px;height:100%;transition:all .28s;}
    .feat-card:hover{border-color:rgba(201,168,76,0.3);background:rgba(201,168,76,0.04);transform:translateY(-3px);}
    .feat-icon{width:50px;height:50px;border-radius:13px;display:flex;align-items:center;justify-content:center;font-size:1.3rem;margin-bottom:16px;}
    .feat-card h5{font-size:1rem;font-weight:700;color:#fff;margin-bottom:8px;}
    .feat-card p{font-size:.85rem;color:var(--text-muted);line-height:1.75;margin:0;}

    /* HOW WORKS */
    .hw-card{background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.07);border-radius:14px;padding:24px;height:100%;transition:all .28s;}
    .hw-card:hover{border-color:rgba(201,168,76,0.3);background:rgba(201,168,76,0.04);}
    .hw-num{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--gold),var(--gold-dark));display:flex;align-items:center;justify-content:center;font-size:.9rem;font-weight:700;color:var(--navy);margin-bottom:14px;box-shadow:0 3px 12px rgba(201,168,76,0.3);}
    .hw-card h6{font-size:.95rem;font-weight:700;color:#fff;margin-bottom:7px;}
    .hw-card p{font-size:.84rem;color:var(--text-muted);line-height:1.7;margin:0;}

    /* ACCORDION */
    .accordion-item{background:rgba(255,255,255,0.03)!important;border:1px solid rgba(255,255,255,0.07)!important;border-radius:12px!important;margin-bottom:10px;overflow:hidden;}
    .accordion-button{background:transparent!important;color:#fff!important;font-family:'Noto Sans Bengali',sans-serif;font-size:.92rem;font-weight:600;padding:18px 22px;box-shadow:none!important;}
    .accordion-button:not(.collapsed){color:var(--gold-light)!important;background:rgba(201,168,76,0.05)!important;}
    .accordion-button::after{filter:invert(1) sepia(1) saturate(2) hue-rotate(5deg);}
    .accordion-body{background:transparent;color:var(--text-muted);font-size:.88rem;line-height:1.75;padding:0 22px 20px;}

    /* CTA */
    .btn-hero-primary{background:linear-gradient(135deg,var(--gold),var(--gold-dark));color:var(--navy);font-weight:700;font-size:1rem;border:none;border-radius:8px;padding:13px 32px;box-shadow:0 4px 24px rgba(201,168,76,0.3);transition:all .25s;text-decoration:none;display:inline-block;}
    .btn-hero-primary:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(201,168,76,0.45);color:var(--navy);}
    .btn-hero-ghost{border:1.5px solid rgba(201,168,76,0.4);color:var(--gold-light);background:transparent;border-radius:8px;padding:13px 28px;font-size:1rem;font-weight:600;transition:all .25s;text-decoration:none;display:inline-block;}
    .btn-hero-ghost:hover{border-color:var(--gold);color:var(--gold);background:rgba(201,168,76,0.07);}

    /* FOOTER */
    footer{background:#080F17;border-top:1px solid rgba(201,168,76,0.15);padding:60px 0 24px;}
    .footer-brand{font-family:'Noto Serif Bengali',serif;font-size:1.4rem;font-weight:700;color:var(--gold);margin-bottom:12px;}
    .footer-desc{font-size:.85rem;color:var(--text-muted);line-height:1.7;max-width:260px;}
    .footer-heading{font-size:.8rem;font-weight:700;color:#fff;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:16px;}
    .footer-link{display:block;font-size:.85rem;color:var(--text-muted);text-decoration:none;margin-bottom:9px;transition:color .2s;}
    .footer-link:hover{color:var(--gold);}
    .footer-bottom{border-top:1px solid rgba(255,255,255,0.06);margin-top:48px;padding-top:22px;font-size:.8rem;color:var(--text-muted);}
    .social-btn{width:36px;height:36px;border-radius:8px;background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.08);display:inline-flex;align-items:center;justify-content:center;color:var(--text-muted);font-size:.95rem;transition:all .2s;text-decoration:none;}
    .social-btn:hover{background:rgba(201,168,76,0.15);border-color:var(--gold);color:var(--gold);}
    ::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--navy)}::-webkit-scrollbar-thumb{background:var(--gold-dark);border-radius:3px}

    /* toast */
    .toast-custom{position:fixed;bottom:28px;right:28px;background:rgba(20,34,50,0.97);border:1px solid rgba(74,222,128,0.4);border-radius:14px;padding:15px 20px;display:flex;align-items:center;gap:12px;z-index:9999;box-shadow:0 8px 32px rgba(0,0,0,0.4);transform:translateY(80px);opacity:0;transition:all .4s cubic-bezier(.34,1.56,.64,1);max-width:320px;}
    .toast-custom.show{transform:translateY(0);opacity:1;}
    .toast-icon{width:38px;height:38px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0;}
    .toast-custom h6{font-size:.88rem;font-weight:700;margin:0 0 2px;color:#fff;}
    .toast-custom p{font-size:.78rem;color:var(--text-muted);margin:0;}