.jjmeta-wa-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.4); /* Slate dark overlay */
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 99999999;
    opacity: 0;
    transition: opacity 0.3s ease;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    pointer-events: auto;
}

.jjmeta-wa-overlay.jjmeta-active {
    opacity: 1;
}

.jjmeta-wa-card {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 32px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: 0 20px 40px -15px rgba(15, 23, 42, 0.3);
    max-width: 380px;
    width: 90%;
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    text-align: center;
}

.jjmeta-wa-overlay.jjmeta-active .jjmeta-wa-card {
    transform: scale(1);
}

.jjmeta-wa-icon-container {
    width: 72px;
    height: 72px;
    background: rgba(37, 211, 102, 0.1);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
    animation: jjmeta-pulse 2s infinite ease-in-out;
}

.jjmeta-wa-icon {
    width: 44px;
    height: 44px;
}

.jjmeta-wa-text {
    font-size: 16px;
    font-weight: 600;
    color: #1e293b; /* Slate 800 */
    margin-bottom: 24px;
    line-height: 1.5;
}

.jjmeta-wa-countdown {
    color: #25d366; /* WhatsApp green */
    font-size: 18px;
    font-weight: 700;
    padding: 0 4px;
}

.jjmeta-wa-progress-bar {
    width: 100%;
    height: 6px;
    background: #e2e8f0; /* Slate 200 */
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.jjmeta-wa-progress-inner {
    height: 100%;
    background: linear-gradient(90deg, #25d366, #128c7e);
    width: 100%;
    border-radius: 3px;
    transform-origin: left;
    transform: scaleX(1);
    transition: transform 1s linear;
}

@keyframes jjmeta-pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.2);
    }
    50% {
        transform: scale(1.06);
        box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
    }
}