:root {
            --bg-dark: #0a0b0e;
            --bg-darker: #050607;
            --text-primary: #f0f0f0;
            --text-secondary: #a0a0a0;
            --accent-color: #7c3aed;
            --accent-secondary: #06b6d4;
            --accent-gradient: linear-gradient(135deg, var(--accent-color), var(--accent-secondary));
            --card-bg: rgba(255, 255, 255, 0.03);
            --card-border: rgba(255, 255, 255, 0.05);
            --success-color: #10B981;
            --error-color: #EF4444;
            --warning-color: #F59E0B;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', 'Space Grotesk', sans-serif;
            background: radial-gradient(circle at top right, var(--bg-dark) 0%, var(--bg-darker) 100%);
            color: var(--text-primary);
            line-height: 1.7;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            position: relative;
            overflow-x: hidden;
        }

        #particles-js {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
            pointer-events: none;
        }

        .background-overlay {
            position: fixed;
            inset: 0;
            background: 
                radial-gradient(circle at 20% 20%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(6, 182, 212, 0.15) 0%, transparent 50%);
            pointer-events: none;
            z-index: 1;
            animation: pulseBackground 15s ease-in-out infinite alternate;
        }

        .noise-overlay {
            position: fixed;
            inset: 0;
            background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIzMDAiIGhlaWdodD0iMzAwIj48ZmlsdGVyIGlkPSJhIj48ZmVUdXJidWxlbmNlIHR5cGU9ImZyYWN0YWxOb2lzZSIgYmFzZUZyZXF1ZW5jeT0iLjc1IiBzdGl0Y2hUaWxlcz0ic3RpdGNoIi8+PC9maWx0ZXI+PHJlY3Qgd2lkdGg9IjMwMCIgaGVpZ2h0PSIzMDAiIGZpbHRlcj0idXJsKCNhKSIgb3BhY2l0eT0iLjA1Ii8+PC9zdmc+');
            pointer-events: none;
            opacity: 0.4;
            z-index: 2;
        }

        .container {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            padding: 3rem 2rem;
            max-width: 1200px;
            margin: 0 auto;
            position: relative;
            z-index: 3;
        }

        .glassmorphic-card {
            background: var(--card-bg);
            border-radius: 24px;
            backdrop-filter: blur(20px);
            border: 1px solid var(--card-border);
            padding: 3rem;
            width: 100%;
            box-shadow: 
                0 25px 50px rgba(0, 0, 0, 0.25),
                0 0 30px rgba(124, 58, 237, 0.1);
            position: relative;
            overflow: hidden;
            animation: cardFloat 6s ease-in-out infinite;
        }

        .glassmorphic-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(
                90deg,
                transparent,
                rgba(255, 255, 255, 0.05),
                transparent
            );
            animation: cardShine 8s infinite;
        }

        .content-wrapper {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2rem;
            width: 100%;
            animation: fadeIn 1s ease-out;
        }

        /* Modern Button Styles */
        .btn {
            padding: 0.75rem 1.5rem;
            border-radius: 12px;
            border: none;
            background: var(--accent-gradient);
            color: white;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(124, 58, 237, 0.2);
        }

        .btn::after {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 50%);
            transform: scale(0);
            transition: transform 0.5s ease-out;
        }

        .btn:hover::after {
            transform: scale(1);
        }

        /* Input Styles */
        .input-group {
            position: relative;
            width: 100%;
            max-width: 400px;
            margin: 1rem 0;
        }

        .input {
            width: 100%;
            padding: 1rem;
            border: 1px solid var(--card-border);
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.05);
            color: var(--text-primary);
            font-size: 1rem;
            transition: all 0.3s ease;
        }

        .input:focus {
            outline: none;
            border-color: var(--accent-color);
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
        }

        .input-label {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-secondary);
            transition: all 0.3s ease;
            pointer-events: none;
        }

        .input:focus + .input-label,
        .input:not(:placeholder-shown) + .input-label {
            top: 0;
            left: 0.8rem;
            font-size: 0.8rem;
            padding: 0 0.4rem;
            background: var(--bg-dark);
        }

        /* Toast Notifications */
        .toast-container {
            position: fixed;
            top: 2rem;
            right: 2rem;
            z-index: 1000;
        }

        .toast {
            padding: 1rem 1.5rem;
            border-radius: 12px;
            background: var(--card-bg);
            backdrop-filter: blur(20px);
            border: 1px solid var(--card-border);
            color: var(--text-primary);
            margin-bottom: 1rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
            animation: toastSlideIn 0.3s ease-out;
        }

        .toast.success { border-color: var(--success-color); }
        .toast.error { border-color: var(--error-color); }
        .toast.warning { border-color: var(--warning-color); }

        /* Loading Spinner */
        .spinner {
            width: 40px;
            height: 40px;
            border: 3px solid var(--card-border);
            border-top-color: var(--accent-color);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        /* Animations */
        @keyframes cardFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }

        @keyframes cardShine {
            0% { left: -100%; }
            50%, 100% { left: 100%; }
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }

        @keyframes toastSlideIn {
            from { transform: translateX(100%); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }

        @keyframes pulseBackground {
            0% { opacity: 0.5; transform: scale(1); }
            100% { opacity: 1; transform: scale(1.1); }
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .container { padding: 2rem 1rem; }
            .glassmorphic-card { padding: 2rem 1.5rem; }
            .toast-container {
                top: auto;
                bottom: 2rem;
                left: 1rem;
                right: 1rem;
            }
        }