/* ── Archive / Shop loop COD button ───────────────────────── */
.cod-archive-btn {
    display: block;
    width: 100%;
    margin-top: 8px;
    padding: 9px 14px;
    background-color: #000000;
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
    letter-spacing: 0.3px;
    transition: background-color 0.2s, transform 0.15s;
    animation: cod-archive-vibrate 2s ease-in-out infinite;
}

.cod-archive-btn:hover {
    background-color: #2f7340;
    animation-play-state: paused;
    transform: scale(1.02);
}

@keyframes cod-archive-vibrate {
    0%, 80%, 100% { transform: translateX(0); }
    82%           { transform: translateX(-3px); }
    84%           { transform: translateX(3px); }
    86%           { transform: translateX(-3px); }
    88%           { transform: translateX(3px); }
    90%           { transform: translateX(-2px); }
    92%           { transform: translateX(2px); }
    94%           { transform: translateX(0); }
}