body {
    background: #fafafa;
    font-family: 'Segoe UI',sans-serif
}

.form-card {
    max-width: 760px;
    margin: auto;
    background: #fff;
    padding: 30px;
    border-radius: 18px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.1)
}

.form-control {
    border-radius: 40px;
    height: 55px;
    font-size: 16px;
    padding-left: 20px
}

label {
    font-weight: 600;
    font-size: 18px
}

.pay-btn {
    background: #d93b3b;
    color: #fff;
    font-weight: 700;
    width: 100%;
    padding: 15px;
    border-radius: 50px;
    border: none;
    font-size: 24px
}

.calendar-img {
    max-width: 160px
}

@media(max-width:768px) {
    .calendar-img {
        max-width: 120px
    }
}