:root {
            --primary-green: #2ECC71;
            --dark-green: #27AE60;
            --light-green: #58D68D;
            --whatsapp-green: #25D366;
        }
        
        body { 
            font-family: 'Inter', sans-serif; 
            scroll-behavior: smooth;
        }
        
        .gradient-bg {
            background: linear-gradient(135deg, #000000 0%, #1a1a1a 50%, #2c2c2c 100%);
        }
        
        .gradient-green {
            background: linear-gradient(135deg, var(--primary-green) 0%, var(--dark-green) 100%);
        }
        
        .gradient-text {
            background: linear-gradient(135deg, var(--primary-green), var(--light-green));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        
        .hero-pattern {
            background-image: 
                radial-gradient(circle at 25% 25%, rgba(46, 204, 113, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 75% 75%, rgba(46, 204, 113, 0.05) 0%, transparent 50%);
        }
        
        .glass-card {
            background: rgba(255, 255, 255, 0.05);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        .feature-card {
            background: white;
            border-radius: 1rem;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            border: 2px solid transparent;
        }
        
        .feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(46, 204, 113, 0.15);
            border-color: var(--primary-green);
        }
        
        .pricing-card {
            background: white;
            border-radius: 1.5rem;
            padding: 2.5rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            transition: all 0.3s ease;
            border: 2px solid #f1f5f9;
            position: relative;
        }
        
        .pricing-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 25px 50px rgba(46, 204, 113, 0.2);
            border-color: var(--primary-green);
        }
        
        .pricing-card.featured {
            border-color: var(--primary-green);
            transform: scale(1.05);
        }
        
        .pricing-card.featured::before {
            content: "Most Popular";
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--gradient-green);
            color: white;
            padding: 0.5rem 1.5rem;
            border-radius: 2rem;
            font-size: 0.875rem;
            font-weight: 600;
        }
        
        .btn-primary {
            background: var(--gradient-green);
            color: white;
            padding: 1rem 2rem;
            border-radius: 0.75rem;
            font-weight: 600;
            transition: all 0.3s ease;
            border: none;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 25px rgba(46, 204, 113, 0.3);
        }
        
        .btn-secondary {
            background: transparent;
            color: var(--primary-green);
            padding: 1rem 2rem;
            border-radius: 0.75rem;
            font-weight: 600;
            transition: all 0.3s ease;
            border: 2px solid var(--primary-green);
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .btn-secondary:hover {
            background: var(--primary-green);
            color: white;
            transform: translateY(-2px);
        }
        
        .chat-bubble {
            background: #E8F5E8;
            border-radius: 1rem 1rem 0.25rem 1rem;
            padding: 1rem;
            margin: 0.5rem 0;
            position: relative;
            animation: slideInRight 0.6s ease-out;
        }
        
        .chat-bubble.ai {
            background: var(--primary-green);
            color: white;
            border-radius: 1rem 1rem 1rem 0.25rem;
            margin-left: 2rem;
            animation: slideInLeft 0.6s ease-out;
        }
        
        .floating-element {
            animation: float 3s ease-in-out infinite;
        }
        
        @keyframes float {
            0%, 100% { transform: translateY(0px); }
            50% { transform: translateY(-10px); }
        }
        
        @keyframes slideInRight {
            from { opacity: 0; transform: translateX(30px); }
            to { opacity: 1; transform: translateX(0); }
        }
        
        @keyframes slideInLeft {
            from { opacity: 0; transform: translateX(-30px); }
            to { opacity: 1; transform: translateX(0); }
        }
        
        @keyframes fadeInUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        
        .fade-in-up {
            animation: fadeInUp 0.8s ease-out;
        }
        
        .step-number {
            background: var(--gradient-green);
            color: white;
            width: 3rem;
            height: 3rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.25rem;
        }
        
        .testimonial-card {
            background: white;
            border-radius: 1rem;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
            border-left: 4px solid var(--primary-green);
        }
        
        .whatsapp-icon {
            color: var(--whatsapp-green);
        }
        
        .section-padding {
            padding: 5rem 0;
        }
        
        @media (max-width: 768px) {
            .section-padding {
                padding: 3rem 0;
            }
            
            .hero-title {
                font-size: 2.5rem;
                line-height: 1.2;
            }
            
            .pricing-card.featured {
                transform: none;
            }
        }
        
        .nav-link {
            color: white;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
        }
        
        .nav-link:hover {
            color: var(--primary-green);
        }
        
        .mobile-menu {
            transform: translateX(100%);
            transition: transform 0.3s ease;
        }
        
        .mobile-menu.open {
            transform: translateX(0);
        }
   
   
  /* Popup overlay */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 50;
  padding: 1rem;
  box-sizing: border-box;
}

/* Modal content */
.modal-content {
  position: relative;
  background: white;
  border-radius: 0.5rem;
  width: 100%;
  max-width: 700px;
  max-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 0; /* remove extra padding to fit iframe */
}

/* Responsive iframe wrapper */
.modal-video-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 70.25%; /* 16:9 aspect ratio */
  height: 0;
}

.modal-video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}

/* Close button */
.modal-close {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  cursor: pointer;
  font-size: 1.5rem;
  font-weight: bold;
}