/* CENTER + FULL-WIDTH FORM */
form.example {
    width: 100%;
    max-width: 900px;          /* adjust width as needed */
    margin: 0 auto;            /* this centers the form */
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: nowrap;
    padding: 1rem 0;
}

/* INPUTS + SELECTS */
.first, .second, .third {
    padding: 14px 16px;
    font-size: 18px;
    background: #ffffff;
    border-radius: 10px;
    border: 1px solid #cfcfcf;
    transition: all 0.2s ease-in-out;
}

/* FLEX GROW — proportionally allocate row width */
.first  { flex: 3; }
.second { flex: 2; }
.third  { flex: 2; }

/* FOCUS EFFECT */
.first:focus,
.second:focus,
.third:focus {
    border-color: #2196F3;
    box-shadow: 0 0 8px rgba(33,150,243,0.4);
    outline: none;
}

/* BUTTONS */
form.example button {
    flex: 1;
    padding: 14px 18px;
    font-size: 25px;
    font-weight: 600;
    background: #2196F3;
    color: gray;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
}

form.example button:hover {
    background: #0b7dda;
    transform: translateY(-2px);
}

form.example button:active {
    transform: translateY(0px);
}