.btn-close {
    background: linear-gradient(135deg, #6b7280, #4b5563); /* gray gradient */
    color: #fff;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.3s ease-in-out;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15);
}
.btn-close:hover {
    background: linear-gradient(135deg, #4b5563, #374151);
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.25);
}

.btn-accept {
    background: linear-gradient(135deg, #16a34a, #15803d); /* green gradient */
    color: #fff;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: all 0.3s ease-in-out;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15);
}
.btn-accept:hover {
    background: linear-gradient(135deg, #15803d, #166534);
    transform: translateY(-2px);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.25);
}