.marine-battery-calculator {
    font-family: Arial, sans-serif;
}

.device-row > input {
    /* Let Bootstrap handle width inside flex container */
    flex: 1 1 auto;
}

.marine-button {
    background-color: #07385d !important;
    color: #fff !important;
    border: none !important;
    padding: 0.625rem 1rem;
    cursor: pointer;
    transition: all 0.4s ease-in-out;
    display: inline-block;
}

.marine-button:hover,
.marine-button:focus {
    background-color: #096d6d !important;
    color: #fff !important;
    outline: none;
    box-shadow: 0 0 8px rgba(9, 109, 109, 0.6);
}