:root {
            --primary-color: #6c5ce7;
            --secondary-color: #00cec9;
            --accent-color: #ff6b6b;
            --text-color: #f5f6fa;
            --bg-color: #1e272e;
            --card-bg: rgba(30, 39, 46, 0.95);
            --nav-bg: rgba(30, 39, 46, 0.98);
            --glass-border: rgba(255, 255, 255, 0.1);
            --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            --neon-glow: 0 0 20px rgba(108, 92, 231, 0.6);
            --neon-glow-secondary: 0 0 20px rgba(0, 206, 201, 0.4);
        }

        .light-mode {
            --primary-color: #6c5ce7;
            --secondary-color: #00cec9;
            --text-color: #2d3436;
            --bg-color: #f5f6fa;
            --card-bg: rgba(245, 246, 250, 0.95);
            --nav-bg: rgba(245, 246, 250, 0.98);
            --glass-border: rgba(0, 0, 0, 0.1);
            --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            --neon-glow: 0 0 20px rgba(108, 92, 231, 0.3);
            --neon-glow-secondary: 0 0 20px rgba(0, 206, 201, 0.2);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }

        body {
            background-color: var(--bg-color);
            color: var(--text-color);
            overflow-x: hidden;
        }

        /* Advanced Cursor System */
        .cursor-dot {
            width: 8px;
            height: 8px;
            background: var(--primary-color);
            border-radius: 50%;
            position: fixed;
            pointer-events: none;
            z-index: 9999;
            mix-blend-mode: difference;
            transition: transform 0.1s ease;
        }

        .cursor-ring {
            width: 40px;
            height: 40px;
            border: 2px solid var(--primary-color);
            border-radius: 50%;
            position: fixed;
            pointer-events: none;
            z-index: 9998;
            transition: all 0.2s ease;
            mix-blend-mode: difference;
        }

        .cursor-trail {
            position: fixed;
            width: 6px;
            height: 6px;
            background: var(--secondary-color);
            border-radius: 50%;
            pointer-events: none;
            z-index: 9997;
            opacity: 0;
            mix-blend-mode: difference;
        }

        /* Header Styles */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            background: var(--nav-bg);
            border-bottom: 1px solid var(--glass-border);
            padding: 1rem 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            transform: translateY(0);
        }

        header.scrolled {
            padding: 0.8rem 2rem;
            box-shadow: var(--glass-shadow);
            background: var(--nav-bg);
        }

        header.hidden {
            transform: translateY(-100%);
        }

        /* Logo with Animation */
        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            position: relative;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .logo::before {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            transition: width 0.3s ease;
        }

        .logo:hover::before {
            width: 100%;
        }

        .logo:hover {
            transform: translateY(-2px);
            text-shadow: var(--neon-glow);
        }

        /* Navigation */
        nav ul {
            display: flex;
            list-style: none;
            gap: 2.5rem;
            align-items: center;
        }

        nav a {
            color: var(--text-color);
            text-decoration: none;
            font-weight: 600;
            font-size: 1rem;
            position: relative;
            padding: 0.5rem 0;
            transition: all 0.3s ease;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        nav a::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            transition: width 0.3s ease;
        }

        nav a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            width: 0;
            height: 0;
            background: var(--primary-color);
            border-radius: 50%;
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }

        nav a:hover::before {
            width: 100%;
        }

        nav a:hover::after {
            width: 6px;
            height: 6px;
        }

        nav a:hover {
            color: var(--primary-color);
            transform: translateY(-2px);
        }

        /* CTA Button */
        .cta-nav-button {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white !important;
            padding: 0.8rem 2rem !important;
            border-radius: 30px !important;
            font-weight: 700 !important;
            transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) !important;
            box-shadow: 0 4px 20px rgba(108, 92, 231, 0.4) !important;
            position: relative;
            overflow: hidden;
        }

        .cta-nav-button::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
            transition: left 0.6s ease;
        }

        .cta-nav-button:hover::before {
            left: 100%;
        }

        .cta-nav-button:hover {
            transform: translateY(-3px) scale(1.05);
            box-shadow: 0 8px 30px rgba(108, 92, 231, 0.6) !important;
        }

        .cta-nav-button:active {
            transform: translateY(-1px) scale(1.02);
        }

        /* Icons Container */
        .icons {
            display: flex;
            align-items: center;
            gap: 1.2rem;
        }

        /* Theme Controls */
        .theme-controls {
            display: flex;
            align-items: center;
            gap: 0.8rem;
            position: relative;
        }

        /* Theme Toggle */
        .theme-toggle-btn {
            width: 45px;
            height: 45px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--card-bg);
            border-radius: 50%;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 1px solid var(--glass-border);
            position: relative;
            overflow: hidden;
        }

        .theme-toggle-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            opacity: 0;
            transition: opacity 0.3s ease;
            border-radius: 50%;
        }

        .theme-toggle-btn:hover::before {
            opacity: 0.1;
        }

        .theme-toggle-btn:hover {
            transform: translateY(-2px) rotate(15deg);
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }

        .theme-toggle-btn i {
            font-size: 1.2rem;
            color: var(--text-color);
            transition: all 0.3s ease;
            position: relative;
            z-index: 1;
        }

        /* Color Palette */
        .color-palette-btn {
            position: relative;
            width: 45px;
            height: 45px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--card-bg);
            border-radius: 50%;
            cursor: pointer;
            transition: all 0.3s ease;
            border: 1px solid var(--glass-border);
        }

        .color-palette-btn:hover {
            transform: translateY(-2px) scale(1.1);
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }

        .color-palette-menu {
            position: absolute;
            top: 120%;
            right: 0;
            background: var(--card-bg);
            backdrop-filter: blur(20px);
            border-radius: 15px;
            padding: 1rem;
            box-shadow: var(--glass-shadow);
            border: 1px solid var(--glass-border);
            display: none;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.8rem;
            width: 130px;
            z-index: 1001;
            animation: slideDown 0.3s ease;
        }

        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .color-palette-btn:hover .color-palette-menu {
            display: grid;
        }

        .color-option {
            width: 26px;
            height: 26px;
            border-radius: 50%;
            cursor: pointer;
            border: 2px solid var(--glass-border);
            transition: all 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .color-option::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(255,255,255,0.1);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .color-option:hover::before {
            opacity: 1;
        }

        .color-option:hover {
            transform: scale(1.2);
            box-shadow: 0 4px 12px rgba(0,0,0,0.3);
        }

        /* Contact Button */
        .contact-btn {
            width: 45px;
            height: 45px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            border-radius: 50%;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            color: white;
            position: relative;
            overflow: hidden;
        }

        .contact-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .contact-btn:hover::before {
            opacity: 1;
        }

        .contact-btn:hover {
            transform: translateY(-3px) scale(1.1);
            box-shadow: 0 8px 25px rgba(108, 92, 231, 0.4);
        }

        .contact-btn i {
            position: relative;
            z-index: 1;
            font-size: 1.2rem;
        }

        /* Mobile Menu Toggle */
        .hamburger {
            display: none;
            cursor: pointer;
            width: 45px;
            height: 45px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 4px;
            background: var(--card-bg);
            border-radius: 50%;
            border: 1px solid var(--glass-border);
            transition: all 0.3s ease;
            z-index: 1001;
        }

        .hamburger span {
            width: 20px;
            height: 2px;
            background: var(--text-color);
            transition: all 0.3s ease;
            border-radius: 2px;
        }

        .hamburger.active span:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }

        .hamburger.active span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.active span:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }

        .hamburger:hover {
            transform: scale(1.1);
            background: var(--primary-color);
        }

        .hamburger:hover span {
            background: white;
        }

        /* Mobile Menu */
        @media (max-width: 992px) {
            header {
                padding: 1rem;
            }

            .hamburger {
                display: flex;
            }

            nav ul {
                position: fixed;
                top: 0;
                right: -100%;
                width: 280px;
                height: 100vh;
                background: var(--nav-bg);
                backdrop-filter: blur(20px);
                flex-direction: column;
                align-items: flex-start;
                justify-content: flex-start;
                padding: 6rem 2rem 2rem;
                gap: 0;
                transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
                box-shadow: -5px 0 30px rgba(0, 0, 0, 0.3);
                z-index: 999;
            }

            nav ul.active {
                right: 0;
            }

            nav ul li {
                width: 100%;
                border-bottom: 1px solid var(--glass-border);
            }

            nav ul li:last-child {
                border-bottom: none;
            }

            nav a {
                display: block;
                padding: 1.2rem 0;
                width: 100%;
                font-size: 1.1rem;
            }

            .cta-nav-button {
                margin-top: 1rem;
                width: 100%;
                text-align: center;
            }

            .icons {
                gap: 0.8rem;
            }

            .theme-toggle-btn,
            .color-palette-btn,
            .contact-btn {
                width: 40px;
                height: 40px;
            }
        }

        @media (max-width: 480px) {
            header {
                padding: 0.8rem;
            }

            .logo {
                font-size: 1.5rem;
            }

            .theme-controls {
                gap: 0.5rem;
            }

            .theme-toggle-btn,
            .color-palette-btn,
            .contact-btn {
                width: 38px;
                height: 38px;
            }

            .color-palette-menu {
                width: 120px;
                padding: 0.8rem;
            }

            .color-option {
                width: 24px;
                height: 24px;
            }
        }

        /* Loading Animation */
        .loading-bar {
            position: fixed;
            top: 0;
            left: 0;
            width: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
            z-index: 10000;
            transition: width 0.3s ease;
        }