/* Popup overlay */
    .offer-popup-overlay {
      display: none; /* Hidden by default */
      position: fixed;
      z-index: 9999;
      top: 0; left: 0;
      width: 100%; height: 100%;
      background: rgba(0,0,0,0.6);
      justify-content: center;
      align-items: center;
    }

    /* Popup box */
    .offer-popup-box {
      background: #fff;
      border-radius: 8px;
      max-width: 500px;
      width: 90%;
      box-shadow: 0 0 30px rgba(0,0,0,0.5);
      position: relative;
      animation: fadeIn 0.4s ease;
    }

    /* Offer image */
    .offer-popup-box img {
      width: 100%;
      border-radius: 8px 8px 0 0;
      display: block;
    }

    /* Close button */
    .offer-close-btn {
      position: absolute;
      top: 8px; right: 12px;
      background: #ff4444;
      color: white;
      border: none;
      border-radius: 50%;
      width: 28px; height: 28px;
      cursor: pointer;
      font-weight: bold;
      font-size: 18px;
      line-height: 26px;
      text-align: center;
    }

    /* Fade in animation */
    @keyframes fadeIn {
      from {opacity: 0; transform: scale(0.9);}
      to {opacity: 1; transform: scale(1);}
 }

        /* Popup Overlay */
        .popup-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.8);
            backdrop-filter: blur(10px);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }

        .popup-overlay.active {
            opacity: 1;
            visibility: visible;
        }

        /* Popup Container */
        .popup-container {
            background: linear-gradient(145deg, #ffffff, #f0f0f0);
            border-radius: 20px;
            box-shadow: 
                0 20px 60px rgba(0, 0, 0, 0.3),
                0 0 0 1px rgba(255, 255, 255, 0.1);
            max-width: 500px;
            width: 90%;
            max-height: 90vh;
            overflow: hidden;
            transform: scale(0.7) translateY(-50px);
            transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
            position: relative;
        }

        .popup-overlay.active .popup-container {
            transform: scale(1) translateY(0);
        }

        /* Popup Header */
        .popup-header {
            background: linear-gradient(135deg, #ff6b6b, #ff8e53);
            padding: 30px 20px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .popup-header::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
            animation: shimmer 3s ease-in-out infinite;
        }

        @keyframes shimmer {
            0%, 100% { transform: rotate(0deg); }
            50% { transform: rotate(180deg); }
        }

        .popup-header h2 {
            color: white;
            font-size: 2.2rem;
            margin-bottom: 10px;
            font-weight: 600;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
            position: relative;
            z-index: 2;
        }

        .popup-header .subtitle {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1rem;
            position: relative;
            z-index: 2;
        }

        /* Close Button */
        .close-btn {
            position: absolute;
            top: 15px;
            right: 15px;
            background: rgba(255, 255, 255, 0.2);
            border: none;
            width: 35px;
            height: 35px;
            border-radius: 50%;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
            z-index: 3;
        }

        .close-btn:hover {
            background: rgba(255, 255, 255, 0.3);
            transform: rotate(90deg);
        }

        .close-btn::before,
        .close-btn::after {
            content: '';
            position: absolute;
            width: 15px;
            height: 2px;
            background: white;
            border-radius: 1px;
        }

        .close-btn::before {
            transform: rotate(45deg);
        }

        .close-btn::after {
            transform: rotate(-45deg);
        }

        /* Popup Body */
        .popup-body {
            padding: 40px 30px;
            text-align: center;
        }

        .popup-icon {
            width: 80px;
            height: 80px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            border-radius: 50%;
            margin: 0 auto 25px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            animation: pulse 2s ease-in-out infinite;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        .popup-icon::before {
            content: '🎉';
            font-size: 2rem;
        }

        .popup-body h3 {
            color: #333;
            font-size: 1.5rem;
            margin-bottom: 15px;
            font-weight: 600;
        }

        .popup-body p {
            color: #666;
            line-height: 1.6;
            margin-bottom: 30px;
            font-size: 1rem;
        }

        /* Action Buttons */
        .popup-actions {
            display: flex;
            gap: 15px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn {
            padding: 12px 30px;
            border: none;
            border-radius: 25px;
            cursor: pointer;
            font-size: 1rem;
            font-weight: 600;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            position: relative;
            overflow: hidden;
        }

        .btn-primary {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
        }

        .btn-secondary {
            background: transparent;
            color: #667eea;
            border: 2px solid #667eea;
        }

        .btn-secondary:hover {
            background: #667eea;
            color: white;
            transform: translateY(-2px);
        }

        /* Responsive Design */
        @media (max-width: 480px) {
            .popup-container {
                margin: 20px;
            }
            
            .popup-header h2 {
                font-size: 1.8rem;
            }
            
            .popup-body {
                padding: 30px 20px;
            }
            
            .popup-actions {
                flex-direction: column;
            }
            
            .btn {
                width: 100%;
            }
        }

        /* Animation for floating particles */
        .floating-particles {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            overflow: hidden;
        }

        .particle {
            position: absolute;
            background: rgba(255, 255, 255, 0.1);
            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); }
        }