/* General button styles */
.send-button {
    position: absolute;
    right: 12px;
    bottom: 12px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: white;
    border: none;
    border-radius: 12px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-soft);
    font-size: 1.1rem;
}

.send-button:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
    transform: translateY(-2px) scale(1.05);
    box-shadow: var(--shadow-medium);
}

.send-button:disabled {
    background: linear-gradient(135deg, #E9ECEF 0%, #DEE2E6 100%);
    cursor: not-allowed;
    opacity: 0.6;
    transform: none;
    box-shadow: var(--shadow-soft);
}