body {
    margin: 0;
    padding: 20px;
    font-family: Arial, sans-serif;
    background: #f5f5f5;
}
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}
.popup-overlay.hidden {
    display: none;
}
.promo-popup {
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    color: #ffffff;
    padding: 20px 25px;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
    max-width: 500px;
    width: 90%;
    animation: slideIn 0.4s ease;
    transition: transform 0.2s ease;
}
.promo-popup:hover {
    transform: scale(1.02);
}
.promo-popup::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 215, 0, 0.1), transparent);
    animation: shine 3s infinite;
}
.close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #ff4444;
    border: 2px solid #ffffff;
    color: #ffffff;
    font-size: 32px;
    font-weight: bold;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    transition: all 0.3s ease;
    line-height: 1;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
}
.close-btn:hover {
    background: #ff0000;
    transform: rotate(90deg) scale(1.1);
    box-shadow: 0 5px 15px rgba(255, 68, 68, 0.5);
}
.promo-link {
    position: relative;
    z-index: 1;
    text-decoration: none;
    color: inherit;
    display: block;
    cursor: pointer;
}
.promo-text {
    position: relative;
    z-index: 1;
    font-size: 26px;
    font-weight: bold;
    margin: 0;
    letter-spacing: 1px;
    text-align: center;
}
.promo-text .highlight {
    color: #ffd700;
    text-transform: uppercase;
    font-size: 32px;
    text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
    display: block;
    margin: 10px 0;
}
.promo-text .emoji {
    display: inline-block;
    animation: bounce 1s infinite;
}
.cta-text {
    position: relative;
    z-index: 1;
    font-size: 14px;
    color: #ffd700;
    text-align: center;
    margin-top: 15px;
    font-weight: normal;
    opacity: 0.9;
}
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}
@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}
@keyframes shine {
    0% {
        transform: translateX(-100%) translateY(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) translateY(100%) rotate(45deg);
    }
}
@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}
@media (max-width: 768px) {
    .promo-popup {
        padding: 18px 20px;
    }
    
    .close-btn {
        width: 40px;
        height: 40px;
        font-size: 28px;
    }
    
    .promo-text {
        font-size: 20px;
    }
    
    .promo-text .highlight {
        font-size: 26px;
    }
    
    .cta-text {
        font-size: 12px;
    }
}