.fnp-datepicker-dropdown {
    width: 260px;
    background: #fff;
    border: 1px solid #cfcfcf;
    box-shadow: 0 2px 10px rgba(0,0,0,.12);
    padding: 8px;
    font-family: Arial, sans-serif;
    font-size: 13px;
    z-index: 99999;
}

.fnp-datepicker-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
}

.fnp-datepicker-nav {
    width: 28px;
    height: 28px;
    border: 0;
    background: transparent;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
}

.fnp-datepicker-title {
    flex: 1;
    text-align: left;
    border: 0;
    background: transparent;
    font-size: 18px;
    font-weight: 500;
    cursor: pointer;
    padding: 4px 6px;
}

.fnp-datepicker-weekdays,
.fnp-datepicker-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.fnp-datepicker-weekdays {
    margin-bottom: 6px;
    color: #777;
    text-align: center;
}

.fnp-datepicker-days button {
    height: 30px;
    border: 0;
    background: transparent;
    cursor: pointer;
}

    .fnp-datepicker-days button.is-selected {
        background: #0d6efd;
        color: #fff;
        border-radius: 3px;
    }

.fnp-datepicker-month-year-panel {
    display: none;
}

.fnp-datepicker-current-year {
    background: #efefef;
    padding: 6px 10px;
    margin-bottom: 8px;
    font-size: 20px;
    color: #000;
}

.fnp-datepicker-month-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    margin-bottom: 10px;
}

.fnp-datepicker-month-item {
    height: 34px;
    border: 0;
    background: transparent;
    cursor: pointer;
    text-align: center;
}

    .fnp-datepicker-month-item.is-selected {
        background: #0d6efd;
        color: #fff;
        border: 2px solid #222;
    }

.fnp-datepicker-year-list {
    max-height: 140px;
    overflow-y: auto;
    border-top: 1px solid #ddd;
    padding-top: 4px;
}

.fnp-datepicker-year-item {
    width: 100%;
    text-align: left;
    background: #efefef;
    border: 0;
    padding: 8px 10px;
    margin-bottom: 4px;
    cursor: pointer;
}

    .fnp-datepicker-year-item.is-selected {
        background: #dcdcdc;
        font-weight: 700;
    }

.fnp-datepicker-footer {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
}

.fnp-datepicker-footer-btn {
    border: 0;
    background: transparent;
    color: #0d6efd;
    cursor: pointer;
    font-size: 13px;
    padding: 4px 6px;
}