.flash-sales-banner {
    background: linear-gradient(135deg, #ff5252 0%, #f44336 100%);
    color: white;
    padding: 20px;
    text-align: center;
    margin: 20px 0;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(244, 67, 54, 0.3);
    position: relative;
    overflow: hidden;
}

.flash-sales-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        rgba(255,255,255,0.05) 10px,
        rgba(255,255,255,0.05) 20px
    );
    animation: flash-stripe 20s linear infinite;
}

@keyframes flash-stripe {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

.flash-sales-content {
    position: relative;
    z-index: 1;
}

.flash-sales-badge {
    display: inline-block;
    background: white;
    color: #f44336;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 800;
    font-size: 14px;
    text-transform: uppercase;
    margin-bottom: 10px;
    animation: flash-pulse 1.5s ease-in-out infinite;
}

@keyframes flash-pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 20px 10px rgba(255, 255, 255, 0);
    }
}

.flash-sales-title {
    font-size: 28px;
    font-weight: 900;
    margin: 10px 0;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.flash-sales-subtitle {
    font-size: 16px;
    margin-bottom: 15px;
    opacity: 0.95;
}

.flash-sales-cta {
    display: inline-block;
    background: white;
    color: #f44336;
    padding: 12px 30px;
    border-radius: 25px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0,0,0,0.2);
}

.flash-sales-cta:hover {
    background: #ffebee;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0,0,0,0.3);
    color: #f44336;
}

.flash-sales-timer {
    margin-top: 10px;
    font-size: 14px;
    opacity: 0.9;
}

@media (max-width: 768px) {
    .flash-sales-title {
        font-size: 22px;
    }

    .flash-sales-subtitle {
        font-size: 14px;
    }

    .flash-sales-banner {
        padding: 15px;
    }
}