@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;600;700;900&family=Rajdhani:wght@300;400;500;600&display=swap');
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        body {
            font-family: 'Rajdhani', sans-serif;
            background: linear-gradient(135deg, #0a0a0a 0%, #1a0505 25%, #0f0f0f 50%, #1a0a0a 75%, #050505 100%);
            height: 100vh;
            overflow: hidden;
            position: relative;
        }
        
        /* Animated background particles */
        .bg-particles {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
            z-index: 1;
        }
        
        .particle {
            position: absolute;
            border-radius: 50%;
            animation: fireFloat 6s infinite linear;
            filter: blur(0.5px);
        }
        
        .particle.small {
            width: 3px;
            height: 3px;
            background: radial-gradient(circle, #ff6b40 0%, #ff0040 50%, transparent 100%);
            box-shadow: 
                0 0 6px #ff0040,
                0 0 12px rgba(255, 0, 64, 0.5),
                0 0 18px rgba(255, 0, 64, 0.2);
        }
        
        .particle.medium {
            width: 5px;
            height: 5px;
            background: radial-gradient(circle, #ff8040 0%, #ff0040 40%, #cc0033 70%, transparent 100%);
            box-shadow: 
                0 0 8px #ff0040,
                0 0 16px rgba(255, 0, 64, 0.6),
                0 0 24px rgba(255, 0, 64, 0.3);
        }
        
        .particle.large {
            width: 7px;
            height: 7px;
            background: radial-gradient(circle, #ffaa40 0%, #ff4040 30%, #ff0040 60%, #990033 80%, transparent 100%);
            box-shadow: 
                0 0 10px #ff0040,
                0 0 20px rgba(255, 0, 64, 0.7),
                0 0 30px rgba(255, 0, 64, 0.4);
        }
        
        @keyframes fireFloat {
            0% {
                transform: translateY(100vh) translateX(0) scale(0.3);
                opacity: 0;
            }
            5% {
                opacity: 0.8;
                transform: translateY(95vh) translateX(0) scale(1);
            }
            25% {
                opacity: 1;
                transform: translateY(75vh) translateX(10px) scale(1.1);
            }
            50% {
                opacity: 0.9;
                transform: translateY(50vh) translateX(-5px) scale(1);
            }
            75% {
                opacity: 0.7;
                transform: translateY(25vh) translateX(15px) scale(0.8);
            }
            95% {
                opacity: 0.3;
                transform: translateY(5vh) translateX(-10px) scale(0.5);
            }
            100% {
                transform: translateY(-5vh) translateX(20px) scale(0);
                opacity: 0;
            }
        }
        
        /* Sound wave visualization */
        .sound-waves {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 200px;
            display: flex;
            align-items: flex-end;
            justify-content: center;
            gap: 4px;
            opacity: 0.3;
            z-index: 1;
        }
        
        .wave-bar {
            width: 3px;
            background: linear-gradient(to top, #ff0040, transparent);
            border-radius: 2px;
            animation: wave 2s ease-in-out infinite;
        }
        
        .wave-bar:nth-child(1) { height: 40px; animation-delay: 0s; }
        .wave-bar:nth-child(2) { height: 60px; animation-delay: 0.1s; }
        .wave-bar:nth-child(3) { height: 35px; animation-delay: 0.2s; }
        .wave-bar:nth-child(4) { height: 80px; animation-delay: 0.3s; }
        .wave-bar:nth-child(5) { height: 50px; animation-delay: 0.4s; }
        .wave-bar:nth-child(6) { height: 90px; animation-delay: 0.5s; }
        .wave-bar:nth-child(7) { height: 45px; animation-delay: 0.6s; }
        .wave-bar:nth-child(8) { height: 70px; animation-delay: 0.7s; }
        .wave-bar:nth-child(9) { height: 55px; animation-delay: 0.8s; }
        .wave-bar:nth-child(10) { height: 65px; animation-delay: 0.9s; }
        
        @keyframes wave {
            0%, 100% { 
                transform: scaleY(0.3);
                opacity: 0.3;
            }
            50% { 
                transform: scaleY(1);
                opacity: 0.8;
            }
        }
        
        /* Main container */
        .container {
            position: relative;
            z-index: 10;
            height: 100vh;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 2rem;
            text-align: center;
        }
        
        /* Logo section */
        .logo-section {
            margin-bottom: 3rem;
        }
        
        .logo {
            font-family: 'Orbitron', monospace;
            font-size: 3.5rem;
            font-weight: 900;
            color: #ffffff;
            text-shadow: 
                0 0 20px rgba(255, 0, 64, 0.8),
                0 0 40px rgba(255, 0, 64, 0.4),
                0 0 60px rgba(255, 0, 64, 0.2);
            animation: logoGlow 3s ease-in-out infinite;
            margin-bottom: 1rem;
            letter-spacing: 3px;
        }
        
        @keyframes logoGlow {
            0%, 100% { 
                text-shadow: 
                    0 0 20px rgba(255, 0, 64, 0.8),
                    0 0 40px rgba(255, 0, 64, 0.4),
                    0 0 60px rgba(255, 0, 64, 0.2);
            }
            50% { 
                text-shadow: 
                    0 0 30px rgba(255, 0, 64, 1),
                    0 0 60px rgba(255, 0, 64, 0.6),
                    0 0 90px rgba(255, 0, 64, 0.3);
            }
        }
        
        .tagline {
            font-size: 1.4rem;
            color: #cccccc;
            font-weight: 400;
            margin-bottom: 0.5rem;
            opacity: 0.9;
        }
        
        .subtitle {
            font-size: 1.1rem;
            color: #ff4080;
            font-weight: 300;
            opacity: 0.8;
        }
        
        /* Sign in section */
        .signin-section {
            margin: 4rem 0;
        }
        
        .google-signin-btn {
            display: inline-flex;
            align-items: center;
            gap: 15px;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(20px);
            border: 2px solid rgba(255, 0, 64, 0.5);
            border-radius: 50px;
            padding: 18px 40px;
            color: #ffffff;
            font-family: 'Rajdhani', sans-serif;
            font-size: 1.2rem;
            font-weight: 500;
            text-decoration: none;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
            box-shadow: 
                0 8px 32px rgba(0, 0, 0, 0.3),
                inset 0 1px 0 rgba(255, 255, 255, 0.1),
                0 0 0 rgba(255, 0, 64, 0.4);
            animation: buttonPulse 4s ease-in-out infinite;
        }
        
        .google-signin-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 0, 64, 0.2), transparent);
            transition: left 0.5s ease;
        }
        
        .google-signin-btn:hover::before {
            left: 100%;
        }
        
        .google-signin-btn:hover {
            border-color: rgba(255, 0, 64, 0.8);
            box-shadow: 
                0 12px 40px rgba(0, 0, 0, 0.4),
                inset 0 1px 0 rgba(255, 255, 255, 0.2),
                0 0 30px rgba(255, 0, 64, 0.6);
            transform: translateY(-2px);
        }
        
        @keyframes buttonPulse {
            0%, 100% { 
                box-shadow: 
                    0 8px 32px rgba(0, 0, 0, 0.3),
                    inset 0 1px 0 rgba(255, 255, 255, 0.1),
                    0 0 0 rgba(255, 0, 64, 0.4);
            }
            50% { 
                box-shadow: 
                    0 8px 32px rgba(0, 0, 0, 0.3),
                    inset 0 1px 0 rgba(255, 255, 255, 0.1),
                    0 0 20px rgba(255, 0, 64, 0.6);
            }
        }
        
        .google-icon {
            width: 24px;
            height: 24px;
            background: url('data:image/svg+xml;base64,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') no-repeat center;
            background-size: contain;
        }
        
        /* Footer */
        .footer {
            position: absolute;
            bottom: 2rem;
            left: 50%;
            transform: translateX(-50%);
            z-index: 10;
        }
        
        .footer-links {
            display: flex;
            gap: 2rem;
            align-items: center;
        }
        
        .footer-links a {
            color: #888;
            text-decoration: none;
            font-size: 0.9rem;
            font-weight: 300;
            transition: color 0.3s ease;
        }
        
        .footer-links a:hover {
            color: #ff4080;
        }
        
        .footer-divider {
            width: 1px;
            height: 16px;
            background: #444;
        }
        
        /* Responsive design */
        @media (max-width: 768px) {
            .logo {
                font-size: 2.5rem;
                letter-spacing: 2px;
            }
            
            .tagline {
                font-size: 1.2rem;
            }
            
            .subtitle {
                font-size: 1rem;
            }
            
            .google-signin-btn {
                padding: 16px 32px;
                font-size: 1.1rem;
            }
            
            .footer-links {
                flex-direction: column;
                gap: 1rem;
            }
            
            .footer-divider {
                display: none;
            }
            
            .container {
                padding: 1rem;
            }
        }
        
        @media (max-width: 480px) {
            .logo {
                font-size: 2rem;
            }
            
            .google-signin-btn {
                padding: 14px 28px;
                font-size: 1rem;
            }
        }
        
        /* Glowing grid overlay */
        .grid-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: 
                linear-gradient(rgba(255, 0, 64, 0.03) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255, 0, 64, 0.03) 1px, transparent 1px);
            background-size: 100px 100px;
            animation: gridShift 20s linear infinite;
            z-index: 1;
        }
        
        @keyframes gridShift {
            0% { transform: translate(0, 0); }
            100% { transform: translate(100px, 100px); }
        }