/* Thai Datepicker Styles */
.ui-datepicker {
    background: #ffffff;
    padding: 15px;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    width: 320px;
    display: none;
}

/* Header */
.ui-datepicker .ui-datepicker-header {
    background: #0056b3;
    color: #ffffff;
    padding: 10px;
    border-radius: 6px 6px 0 0;
    position: relative;
    margin: -15px -15px 10px;
}

.ui-datepicker .ui-datepicker-title {
    text-align: center;
    font-weight: 600;
    font-size: 16px;
    line-height: 1.5;
}

/* Navigation Buttons */
.ui-datepicker .ui-datepicker-prev,
.ui-datepicker .ui-datepicker-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    cursor: pointer;
    text-align: center;
    line-height: 30px;
    color: #ffffff;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.ui-datepicker .ui-datepicker-prev {
    left: 5px;
}

.ui-datepicker .ui-datepicker-next {
    right: 5px;
}

.ui-datepicker .ui-datepicker-prev:hover,
.ui-datepicker .ui-datepicker-next:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.ui-datepicker .ui-datepicker-prev span,
.ui-datepicker .ui-datepicker-next span {
    display: block;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

/* Calendar Table */
.ui-datepicker table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 5px;
}

.ui-datepicker th {
    padding: 7px 0;
    text-align: center;
    font-weight: 600;
    color: #374151;
    border: 0;
    font-size: 13px;
}

.ui-datepicker td {
    padding: 1px;
    text-align: center;
}

.ui-datepicker td span,
.ui-datepicker td a {
    display: block;
    padding: 8px;
    text-align: center;
    text-decoration: none;
    color: #374151;
    border-radius: 4px;
    transition: all 0.2s;
    font-size: 14px;
}

/* Calendar Days States */
.ui-datepicker td a.ui-state-default {
    background: transparent;
    border: 1px solid transparent;
}

.ui-datepicker td a.ui-state-default:hover {
    background-color: #f3f4f6;
    border-color: #e5e7eb;
}

.ui-datepicker td a.ui-state-active {
    background-color: #0056b3;
    color: #ffffff;
    border-color: #0056b3;
}

.ui-datepicker td.ui-state-disabled {
    opacity: 0.35;
}

/* Today's Date */
.ui-datepicker td a.ui-state-highlight {
    background-color: #e5e7eb;
    border-color: #d1d5db;
}

/* Month and Year Dropdowns */
.ui-datepicker select.ui-datepicker-month,
.ui-datepicker select.ui-datepicker-year {
    width: 45%;
    height: 30px;
    margin: 0 2px;
    padding: 2px 5px;
    border: 1px solid #e5e7eb;
    border-radius: 4px;
    background-color: #ffffff;
    color: #374151;
    font-size: 14px;
}

/* Close Button */
.ui-datepicker .ui-datepicker-close {
    position: absolute;
    right: 5px;
    top: 5px;
    padding: 5px;
    cursor: pointer;
    color: #ffffff;
    border: none;
    background: none;
    font-size: 18px;
    line-height: 1;
}

/* Responsive Design */
@media (max-width: 480px) {
    .ui-datepicker {
        width: 290px;
        font-size: 14px;
    }

    .ui-datepicker td span,
    .ui-datepicker td a {
        padding: 6px;
        font-size: 13px;
    }
}

/* Input Field Style */
input.thai-datepicker {
    padding: 10px 12px;
    border: 1px solid #e5e7eb;
    border-radius: 6px;
    font-size: 14px;
    line-height: 1.5;
    width: 100%;
    color: #374151;
    background-color: #ffffff;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input.thai-datepicker:focus {
    outline: none;
    border-color: #0056b3;
    box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.1);
}

input.thai-datepicker:disabled {
    background-color: #f3f4f6;
    cursor: not-allowed;
}

/* Calendar Icon */
.ui-datepicker-trigger {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    padding: 0;
    border: none;
    background: none;
    cursor: pointer;
    color: #6b7280;
}

/* Animation */
@keyframes datepickerFadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ui-datepicker.ui-datepicker-inline {
    animation: datepickerFadeIn 0.2s ease-out;
}