* { margin: 0; padding: 0; box-sizing: border-box; }
        body {
            background: #0a0e1a;
            font-family: 'Courier New', monospace;
            height: 100vh;
            overflow: hidden;
            display: flex;
            justify-content: center;
            align-items: center;
            position: relative;
        }

        /* ─── Animated background grid (trading feel) ─── */
        .bg-grid {
            position: fixed;
            top: 0; left: 0; width: 100%; height: 100%;
            background-image: 
                linear-gradient(rgba(0, 255, 200, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(0, 255, 200, 0.04) 1px, transparent 1px);
            background-size: 50px 50px;
            z-index: 0;
            animation: gridMove 8s linear infinite;
        }
        @keyframes gridMove {
            0% { transform: translate(0, 0); }
            100% { transform: translate(50px, 50px); }
        }

        /* ─── Animated glowing lines (trading charts) ─── */
        .chart-line {
            position: fixed;
            z-index: 0;
            border: 1px solid rgba(0, 255, 200, 0.08);
            border-radius: 50%;
            animation: pulseLine 6s ease-in-out infinite alternate;
        }
        .line1 { width: 60%; height: 60%; top: 10%; left: -10%; }
        .line2 { width: 40%; height: 40%; bottom: 10%; right: -5%; animation-delay: 2s; }
        .line3 { width: 30%; height: 30%; top: 30%; right: 20%; animation-delay: 4s; }
        @keyframes pulseLine {
            0% { opacity: 0.1; transform: scale(0.8); }
            100% { opacity: 0.3; transform: scale(1.2); }
        }

        /* ─── Moving welcome text (full, seamless) ─── */
        .marquee-wrap {
            position: fixed;
            bottom: 40px;
            left: 0;
            width: 100%;
            overflow: hidden;
            z-index: 1;
            white-space: nowrap;
            opacity: 0.12;
            pointer-events: none;
        }
        .marquee-content {
            display: inline-block;
            font-size: 6vw;
            font-weight: 700;
            color: #00ffc8;
            letter-spacing: 12px;
            text-shadow: 0 0 30px #00ffc8, 0 0 80px #00ffc8;
            animation: marqueeScroll 18s linear infinite;
        }
        .marquee-content span {
            margin-right: 80px;
        }
        @keyframes marqueeScroll {
            0% { transform: translateX(0); }
            100% { transform: translateX(-50%); }
        }

        /* ─── Login Card (glass + glow) ─── */
        .card {
            position: relative;
            z-index: 2;
            background: rgba(10, 14, 26, 0.8);
            backdrop-filter: blur(16px);
            border: 1px solid rgba(0, 255, 200, 0.3);
            border-radius: 24px;
            padding: 3rem 2.8rem;
            width: 100%;
            max-width: 800px;
            box-shadow: 0 0 60px rgba(0, 255, 200, 0.08), 0 0 120px rgba(0, 255, 200, 0.04);
            animation: cardFade 0.8s ease-out;
        }
        @keyframes cardFade {
            0% { opacity: 0; transform: translateY(30px) scale(0.96); }
            100% { opacity: 1; transform: translateY(0) scale(1); }
        }

        .card-header {
            display: flex;
            align-items: center;
            gap: 12px;
            color: #00ffc8;
            font-size: 1.4rem;
            font-weight: 600;
            letter-spacing: 2px;
            margin-bottom: 2rem;
            border-bottom: 1px solid rgba(0,255,200,0.15);
            padding-bottom: 0.8rem;
        }
        .card-header .blink {
            display: inline-block;
            width: 10px;
            height: 10px;
            background: #00ffc8;
            border-radius: 50%;
            animation: blinkDot 1.2s ease-in-out infinite;
            box-shadow: 0 0 20px #00ffc8;
        }
        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.2; }
        }

        .error, .success {
            padding: 0.6rem 1rem;
            border-radius: 8px;
            font-size: 0.85rem;
            margin-bottom: 1.2rem;
            border-left: 4px solid;
        }
        .error { color: #ff6b6b; border-color: #ff6b6b; background: rgba(255,0,0,0.08); }
        .success { color: #69db7c; border-color: #69db7c; background: rgba(0,255,100,0.08); }

        .form-group {
            margin-bottom: 1.6rem;
        }
        .form-group label {
            display: block;
            color: #8aa4b8;
            font-size: 0.7rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 0.3rem;
        }
        .form-group input {
            width: 100%;
            padding: 0.8rem 1rem;
            background: rgba(0, 0, 0, 0.5);
            border: 1px solid #1e3040;
            border-radius: 12px;
            color: #e4f0fa;
            font-family: inherit;
            font-size: 1rem;
            transition: 0.3s;
            outline: none;
        }
        .form-group input:focus {
            border-color: #00ffc8;
            box-shadow: 0 0 25px rgba(0, 255, 200, 0.15);
            background: rgba(0, 0, 0, 0.7);
        }
        .form-group input::placeholder {
            color: #3a5060;
            font-style: italic;
        }

        .btn {
            width: 100%;
            padding: 0.9rem;
            background: transparent;
            border: 1px solid #00ffc8;
            border-radius: 12px;
            color: #00ffc8;
            font-weight: 700;
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 4px;
            cursor: pointer;
            transition: 0.4s;
            position: relative;
            overflow: hidden;
        }
        .btn:hover {
            background: #00ffc8;
            color: #0a0e1a;
            box-shadow: 0 0 50px rgba(0, 255, 200, 0.4);
        }
        .btn::after {
            content: '';
            position: absolute;
            top: -50%; left: -50%; width: 200%; height: 200%;
            background: conic-gradient(from 0deg, transparent, rgba(0,255,200,0.1), transparent, rgba(0,255,200,0.1), transparent);
            animation: spin 4s linear infinite;
            z-index: -1;
        }
        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        /* ─── Status bar (trading terminal feel) ─── */
        .status-bar {
            display: flex;
            justify-content: space-between;
            margin-top: 1.8rem;
            padding-top: 1rem;
            border-top: 1px solid rgba(0,255,200,0.08);
            color: #5a7a8a;
            font-size: 0.7rem;
            letter-spacing: 1px;
        }
        .status-bar span {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .status-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: #00ffc8;
            animation: blinkDot 1.8s infinite;
        }

        @media (max-width: 500px) {
            .card { padding: 2rem 1.5rem; }
            .marquee-content { font-size: 10vw; }
        }