:root {
            --primary-bg: #f8f9fa;
            --secondary-bg: #ffffff;
            --header-bg: linear-gradient(135deg, #f0f4f8 0%, #e2e8f0 100%);
            --text-primary: #333333;
            --text-secondary: #4a5568;
            --text-muted: #666666;
            --border-color: rgba(255, 255, 255, 0.8);
            --card-shadow: 0 5px 15px rgba(0,0,0,0.1);
            --card-hover-shadow: 0 10px 25px rgba(0,0,0,0.15);
            --footer-bg: #2c3e50;
            --footer-text: #bdc3c7;
            --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }

        [data-theme="dark"] {
            --primary-bg: #1a202c;
            --secondary-bg: #2d3748;
            --header-bg: linear-gradient(135deg, #2d3748 0%, #4a5568 100%);
            --text-primary: #e2e8f0;
            --text-secondary: #cbd5e0;
            --text-muted: #a0aec0;
            --border-color: rgba(255, 255, 255, 0.1);
            --card-shadow: 0 5px 15px rgba(0,0,0,0.3);
            --card-hover-shadow: 0 10px 25px rgba(0,0,0,0.4);
            --footer-bg: #1a202c;
            --footer-text: #cbd5e0;
            --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        }

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

        body {
            font-family: 'Arial', sans-serif;
            line-height: 1.6;
            color: var(--text-primary);
            background-color: var(--primary-bg);
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Dark Mode Toggle */
        .theme-toggle {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 1000;
            background: var(--secondary-bg);
            border: 2px solid var(--border-color);
            border-radius: 50px;
            padding: 8px 16px;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: var(--card-shadow);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .theme-toggle:hover {
            transform: scale(1.05);
            box-shadow: var(--card-hover-shadow);
        }

        .theme-toggle-icon {
            font-size: 1.2rem;
            transition: transform 0.3s ease;
        }

        .theme-toggle-text {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-primary);
        }

        .brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-logo {
  height: 60px;
  width: 100px;
  object-fit: contain;
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-color);
  font-family: 'Roboto', sans-serif;
}

        /* Header */
/* Navigation Bar */
/* Sticky Transparent Header */
#main-header {
    position: sticky;
    top: 0;
    z-index: 999;
    backdrop-filter: blur(10px);
    transition: background 0.3s ease;
}

.navbar {
    background: transparent;
    padding: 1rem 0;
    position: relative;
    z-index: 999;
    transition: background 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-primary);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links li a {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    position: relative;
}

.nav-links li a.active,
.nav-links li a:hover {
    color: #667eea;
}

.nav-links li a.active::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 2px;
    background: #667eea;
    bottom: -5px;
    left: 0;
}

/* Hamburger for mobile */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}
.header-container {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  overflow: hidden; /* prevents floating items from escaping */
}

.header-visual {
  position: relative;
  flex: 1 1 50%;
  min-height: 300px;
  z-index: 1;
}

.header-content {
  flex: 1 1 50%;
  z-index: 2;
}
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
        color: var(--text-primary);
    }

    .nav-links {
        flex-direction: column;
        position: absolute;
        top: 60px;
        right: 20px;
        background: var(--secondary-bg);
        padding: 1rem;
        border-radius: 10px;
        display: none;
        box-shadow: var(--card-shadow);
    }

    .nav-links.show {
        display: flex;
    }
}

        .badge {
            margin-top: 100px;
            background: rgba(102, 126, 234, 0.1);
            color: #667eea;
            padding: 0.5rem 1rem;
            border-radius: 20px;
            display: inline-block;
            margin-bottom: 1.5rem;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid rgba(102, 126, 234, 0.2);
        }

        .hero-title {
            font-size: 3.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            line-height: 1.1;
            color: var(--text-primary);
        }

        .hero-subtitle {
            font-size: 1.2rem;
            margin-bottom: 3rem;
            color: var(--text-secondary);
            line-height: 1.6;
            max-width: 500px;
        }

        .cta-button {
            background: #2d3748;
            color: white;
            padding: 1rem 2rem;
            border: none;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: inline-block;
            text-decoration: none;
            margin-bottom: 3rem;
        }

        .cta-button:hover {
            background: #1a202c;
            transform: translateY(-2px);
        }

        .stats {
            display: flex;
            gap: 3rem;
            margin-top: 2rem;
            flex-wrap: wrap;
        }

        .stat-item {
            text-align: left;
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 700;
            display: block;
            color: var(--text-primary);
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 0.25rem;
        }

        /* Floating Cards */
        .floating-card {
            position: absolute;
            background: var(--secondary-bg);
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            padding: 1.5rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            backdrop-filter: blur(10px);
            border: 1px solid var(--border-color);
            animation: float 6s ease-in-out infinite;
        }

        .floating-card:nth-child(1) {
            top: 10%;
            right: 20%;
            animation-delay: 0s;
        }

        .floating-card:nth-child(2) {
            top: 40%;
            right: 10%;
            animation-delay: 2s;
        }

        .floating-card:nth-child(3) {
            top: 70%;
            right: 25%;
            animation-delay: 4s;
        }

        .card-icon {
            width: 50px;
            height: 50px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: white;
            font-weight: 600;
        }

        .card-icon.teal {
            background: linear-gradient(135deg, #38b2ac 0%, #319795 100%);
        }

        .card-icon.purple {
            background: linear-gradient(135deg, #805ad5 0%, #6b46c1 100%);
        }

        .card-icon.pink {
            background: linear-gradient(135deg, #d53f8c 0%, #b83280 100%);
        }

        .card-content h4 {
            margin: 0 0 0.25rem 0;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .card-content p {
            margin: 0;
            font-size: 0.85rem;
            color: var(--text-muted);
        }

        /* Abstract Shapes */
        .abstract-shape {
            position: absolute;
            opacity: 0.6;
            z-index: 1;
        }

        .shape-1 {
            top: 0%;
            right: 5%;
            width: 200px;
            height: 200px;
            background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
            border-radius: 50% 20% 50% 20%;
            animation: morphShape 8s ease-in-out infinite;
        }

        .shape-2 {
            bottom: 10%;
            right: 15%;
            width: 150px;
            height: 150px;
            background: linear-gradient(135deg, #d299c2 0%, #fef9d7 100%);
            border-radius: 20% 50% 20% 50%;
            animation: morphShape 10s ease-in-out infinite reverse;
        }

        .shape-3 {
            top: 50%;
            right: 0%;
            width: 100px;
            height: 100px;
            background: linear-gradient(135deg, #89f7fe 0%, #66a6ff 100%);
            border-radius: 30% 70% 30% 70%;
            animation: morphShape 6s ease-in-out infinite;
        }

        @keyframes morphShape {
            0%, 100% { 
                transform: rotate(0deg) scale(1);
                border-radius: 50% 20% 50% 20%;
            }
            25% { 
                transform: rotate(90deg) scale(1.1);
                border-radius: 20% 50% 20% 50%;
            }
            50% { 
                transform: rotate(180deg) scale(0.9);
                border-radius: 70% 30% 70% 30%;
            }
            75% { 
                transform: rotate(270deg) scale(1.05);
                border-radius: 30% 70% 30% 70%;
            }
        }

        /* Features Section */
        .features {
            padding: 2rem 0;
            background: var(--secondary-bg);
            margin-bottom: 0px;
        }

        .section-title {
            text-align: center;
            font-size: 2.5rem;
            margin-bottom: 3rem;
            color: var(--text-primary);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .feature-card {
            background: var(--secondary-bg);
            padding: 2rem;
            border-radius: 10px;
            box-shadow: var(--card-shadow);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            border: 1px solid var(--border-color);
        }

        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--card-hover-shadow);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: var(--gradient-primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1rem;
            font-size: 1.5rem;
            color: white;
        }

        .feature-title {
            font-size: 1.3rem;
            font-weight: bold;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .feature-description {
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* Portfolio Section */
        .portfolio {
            padding: 4rem 0;
            background: var(--primary-bg);
        }

        .portfolio-button {
            background: var(--gradient-primary);
            color: white;
            padding: 1rem 2rem;
            border: none;
            border-radius: 25px;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            display: block;
            margin: 2rem auto;
            text-decoration: none;
            text-align: center;
            width: fit-content;
        }

        .portfolio-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
        }

        /* Featured In Section */
        .featured {
            padding: 3rem 0;
            background: var(--secondary-bg);
            text-align: center;
        }

        .featured-title {
            font-size: 2rem;
            margin-bottom: 2rem;
            color: var(--text-primary);
        }

        .trusted-text {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 2rem;
        }

        /* Testimonials */
        .testimonials {
            padding: 4rem 0;
            background: var(--primary-bg);
        }

        .testimonials-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 2rem;
        }

        .testimonial-card {
            background: var(--secondary-bg);
            padding: 2rem;
            border-radius: 10px;
            box-shadow: var(--card-shadow);
            position: relative;
            border: 1px solid var(--border-color);
        }

        .quote-icon {
            font-size: 3rem;
            color: #667eea;
            opacity: 0.3;
            position: absolute;
            top: 10px;
            left: 20px;
        }

        .testimonial-text {
            margin-bottom: 1.5rem;
            font-style: italic;
            color: var(--text-muted);
            position: relative;
            z-index: 1;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 1rem;
        }

        .author-avatar {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: var(--gradient-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: bold;
        }

        .author-info h4 {
            margin-bottom: 0.25rem;
            color: var(--text-primary);
        }

        .author-info p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        /* About Section */
        .about {
            padding: 4rem 0;
            background: var(--secondary-bg);
        }

        .about-content {
            max-width: 800px;
            margin: 0 auto;
            text-align: center;
        }

        .about-text {
            font-size: 1.1rem;
            line-height: 1.8;
            color: var(--text-muted);
            margin-bottom: 2rem;
        }



        /* Responsive Design */
        @media (max-width: 768px) {
            .header-container {
                grid-template-columns: 1fr;
                text-align: center;
            }
            
            .header-visual {
                height: 300px;
                margin-top: 2rem;
            }
            
            .hero-title {
                font-size: 2.5rem;
            }
            
            .hero-subtitle {
                font-size: 1.1rem;
            }
            
            .stats {
                gap: 1.5rem;
                justify-content: center;
            }
            
            .features-grid,
            .testimonials-grid {
                grid-template-columns: 1fr;
            }
            
            .container {
                padding: 0 15px;
            }
            
            .floating-card {
                position: relative;
                margin: 1rem 0;
                animation: none;
            }
            
            .floating-card:nth-child(1),
            .floating-card:nth-child(2),
            .floating-card:nth-child(3) {
                position: relative;
                top: auto;
                right: auto;
            }
            
            .abstract-shape {
                display: none;
            }

            .theme-toggle {
                top: 10px;
                right: 10px;
                padding: 6px 12px;
            }

            .theme-toggle-text {
                display: none;
            }
        }

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .feature-card,
        .testimonial-card {
            animation: fadeInUp 0.6s ease-out;
        }

        /* Floating particles background */
        .particles {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            overflow: hidden;
            z-index: 1;
        }

        .particle {
            position: absolute;
            width: 4px;
            height: 4px;
            background: rgba(255, 255, 255, 0.5);
            border-radius: 50%;
            animation: float 6s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0px) rotate(0deg); }
            50% { transform: translateY(-20px) rotate(180deg); }
        }
        .particle:nth-child(1) {
            top: 20%;
            left: 30%;
            animation-delay: 0s;
        }
        .particle:nth-child(2) {
            top: 50%;
            left: 70%;
            animation-delay: 1s;
        }