Dark Mode Date Picker

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Dark Mode Date Picker</title>
    <style>
        body {
            font-family: 'Arial', sans-serif;
            background-color: #121212;
            color: #fff;
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
            margin: 0;
        }
        .date-picker-container {
            position: relative;
            width: 300px;
            text-align: center;
        }
        .date-picker {
            padding: 10px 15px;
            font-size: 16px;
            border: 2px solid #bb86fc;
            border-radius: 5px;
            transition: all 0.3s ease;
            cursor: pointer;
            background-color: #1f1f1f;
            color: #bb86fc;
        }
        .date-picker:hover {
            border-color: #9b79ff;
            background-color: #2c2c2c;
        }
        .calendar {
            display: none;
            position: absolute;
            top: 45px;
            left: 0;
            width: 100%;
            border: 2px solid #bb86fc;
            border-radius: 5px;
            background-color: #1f1f1f;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.5);
            animation: fadeIn 0.3s ease;
            z-index: 1000;
        }
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }
        .calendar-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px;
            background-color: #bb86fc;
            color: #121212;
            border-bottom: 1px solid #bb86fc;
        }
        .calendar-header button {
            background: none;
            border: none;
            color: #121212;
            font-size: 18px;
            cursor: pointer;
        }
        .calendar-days {
            display: flex;
            flex-wrap: wrap;
            padding: 10px;
        }
        .calendar-day {
            width: 14.28%;
            padding: 10px;
            text-align: center;
            cursor: pointer;
            transition: background-color 0.3s ease;
            color: #bb86fc;
        }
        .calendar-day:hover {
            background-color: #2c2c2c;
        }
        .calendar-day.selected {
            background-color: #bb86fc;
            color: #121212;
            border-radius: 50%;
        }
    </style>
</head>
<body>
    <div class="date-picker-container">
        <div class="date-picker">Select Date 🌑</div>
        <div class="calendar">
            <div class="calendar-header">
                <button class="prev-month">&lt;</button>
                <span class="month-year"></span>
                <button class="next-month">&gt;</button>
            </div>
            <div class="calendar-days"></div>
        </div>
    </div>
    <script>
        document.addEventListener('DOMContentLoaded', () => {
            const datePicker = document.querySelector('.date-picker');
            const calendar = document.querySelector('.calendar');
            const monthYear = document.querySelector('.month-year');
            const calendarDays = document.querySelector('.calendar-days');
            const prevMonth = document.querySelector('.prev-month');
            const nextMonth = document.querySelector('.next-month');
            let selectedDate = new Date();
            let currentMonth = selectedDate.getMonth();
            let currentYear = selectedDate.getFullYear();
            const monthNames = [
                'January', 'February', 'March', 'April', 'May', 'June',
                'July', 'August', 'September', 'October', 'November', 'December'
            ];
            const renderCalendar = (month, year) => {
                calendarDays.innerHTML = '';
                monthYear.textContent = `${monthNames[month]} ${year}`;
                const firstDay = new Date(year, month, 1).getDay();
                const daysInMonth = new Date(year, month + 1, 0).getDate();
                for (let i = 0; i < firstDay; i++) {
                    calendarDays.innerHTML += `<div class="calendar-day empty"></div>`;
                }
                for (let day = 1; day <= daysInMonth; day++) {
                    const dayElement = document.createElement('div');
                    dayElement.classList.add('calendar-day');
                    dayElement.textContent = day;
                    if (
                        day === selectedDate.getDate() &&
                        month === selectedDate.getMonth() &&
                        year === selectedDate.getFullYear()
                    ) {
                        dayElement.classList.add('selected');
                    }
                    dayElement.addEventListener('click', () => {
                        selectedDate = new Date(year, month, day);
                        datePicker.textContent = `${monthNames[month]} ${day}, ${year} 🌑`;
                        renderCalendar(month, year);
                        calendar.style.display = 'none';
                    });
                    calendarDays.appendChild(dayElement);
                }
            };
            datePicker.addEventListener('click', () => {
                calendar.style.display = 'block';
                renderCalendar(currentMonth, currentYear);
            });
            prevMonth.addEventListener('click', () => {
                if (currentMonth === 0) {
                    currentMonth = 11;
                    currentYear--;
                } else {
                    currentMonth--;
                }
                renderCalendar(currentMonth, currentYear);
            });
            nextMonth.addEventListener('click', () => {
                if (currentMonth === 11) {
                    currentMonth = 0;
                    currentYear++;
                } else {
                    currentMonth++;
                }
                renderCalendar(currentMonth, currentYear);
            });
            document.addEventListener('click', (event) => {
                if (!datePicker.contains(event.target) && !calendar.contains(event.target)) {
                    calendar.style.display = 'none';
                }
            });
        });
    </script>
</body>
</html>

Dark Mode Date Picker - VexaX