100-JS-Projects-Challenge/CountdownTimer.html at main · AkhtarZeb5101/100-JS-Projects-Challenge · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Modern Countdown Timer</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', sans-serif;
        }

        body {
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
            color: #fff;
        }

        .timer-container {
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(15px);
            border-radius: 20px;
            padding: 2rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
            border: 1px solid rgba(255, 255, 255, 0.2);
            text-align: center;
        }

        .timer-display {
            position: relative;
            width: 250px;
            height: 250px;
            margin: 0 auto 2rem;
        }

        svg {
            transform: rotate(-90deg);
        }

        .circle-bg {
            fill: none;
            stroke: rgba(255, 255, 255, 0.1);
            stroke-width: 8;
        }

        .circle-progress {
            fill: none;
            stroke: #00ddeb;
            stroke-width: 8;
            stroke-linecap: round;
            transition: stroke-dashoffset 0.1s linear;
        }

        .time {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            font-size: 3rem;
            font-weight: 300;
            text-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
        }

        .controls {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .input-group {
            display: flex;
            gap: 0.5rem;
            justify-content: center;
        }

        input {
            width: 60px;
            padding: 0.5rem;
            border: none;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            text-align: center;
            font-size: 1rem;
        }

        input:focus {
            outline: none;
            background: rgba(255, 255, 255, 0.2);
        }

        .btn-group {
            display: flex;
            gap: 1rem;
            justify-content: center;
        }

        button {
            padding: 0.7rem 1.5rem;
            border: none;
            border-radius: 25px;
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            cursor: pointer;
            transition: all 0.3s ease;
            font-size: 1rem;
        }

        button:hover {
            background: rgba(255, 255, 255, 0.2);
            transform: translateY(-2px);
        }

        button.active {
            background: #00ddeb;
        }

        @media (max-width: 480px) {
            .timer-container { padding: 1.5rem; }
            .time { font-size: 2.5rem; }
            .timer-display { width: 200px; height: 200px; }
        }
    </style>
</head>
<body>
    <div class="timer-container">
        <div class="timer-display">
            <svg width="250" height="250">
                <circle class="circle-bg" cx="125" cy="125" r="115"></circle>
                <circle class="circle-progress" cx="125" cy="125" r="115" stroke-dasharray="723" stroke-dashoffset="0"></circle>
            </svg>
            <div class="time" id="time">00:00:00</div>
        </div>
        <div class="controls">
            <div class="input-group">
                <input type="number" id="hours" min="0" max="99" placeholder="HH">
                <input type="number" id="minutes" min="0" max="59" placeholder="MM">
                <input type="number" id="seconds" min="0" max="59" placeholder="SS">
            </div>
            <div class="btn-group">
                <button id="startPause">Start</button>
                <button id="reset">Reset</button>
            </div>
        </div>
    </div>

    <script>
        const timeElement = document.getElementById('time');
        const hoursInput = document.getElementById('hours');
        const minutesInput = document.getElementById('minutes');
        const secondsInput = document.getElementById('seconds');
        const startPauseBtn = document.getElementById('startPause');
        const resetBtn = document.getElementById('reset');
        const circleProgress = document.querySelector('.circle-progress');

        let totalSeconds = 0;
        let remainingSeconds = 0;
        let timer = null;
        let isRunning = false;
        const fullDashArray = 723; // Circumference of circle (2 * π * r)

        function updateDisplay() {
            const hours = Math.floor(remainingSeconds / 3600).toString().padStart(2, '0');
            const minutes = Math.floor((remainingSeconds % 3600) / 60).toString().padStart(2, '0');
            const seconds = (remainingSeconds % 60).toString().padStart(2, '0');
            timeElement.textContent = `${hours}:${minutes}:${seconds}`;

            const progress = (remainingSeconds / totalSeconds) * fullDashArray;
            circleProgress.style.strokeDashoffset = fullDashArray - progress;
        }

        function startTimer() {
            if (!isRunning && remainingSeconds > 0) {
                timer = setInterval(() => {
                    remainingSeconds--;
                    updateDisplay();
                    if (remainingSeconds <= 0) {
                        clearInterval(timer);
                        isRunning = false;
                        startPauseBtn.textContent = 'Start';
                        startPauseBtn.classList.remove('active');
                        playSound();
                    }
                }, 1000);
                isRunning = true;
                startPauseBtn.textContent = 'Pause';
                startPauseBtn.classList.add('active');
            }
        }

        function pauseTimer() {
            if (isRunning) {
                clearInterval(timer);
                isRunning = false;
                startPauseBtn.textContent = 'Start';
                startPauseBtn.classList.remove('active');
            }
        }

        function resetTimer() {
            clearInterval(timer);
            isRunning = false;
            remainingSeconds = totalSeconds;
            startPauseBtn.textContent = 'Start';
            startPauseBtn.classList.remove('active');
            updateDisplay();
        }

        function setTimer() {
            const hours = parseInt(hoursInput.value) || 0;
            const minutes = parseInt(minutesInput.value) || 0;
            const seconds = parseInt(secondsInput.value) || 0;
            totalSeconds = hours * 3600 + minutes * 60 + seconds;
            remainingSeconds = totalSeconds;
            updateDisplay();
        }

        function playSound() {
            const audio = new Audio('https://www.soundjay.com/buttons/beep-01a.mp3');
            audio.play().catch(e => console.log('Audio playback failed:', e));
        }

        startPauseBtn.addEventListener('click', () => {
            if (!isRunning && totalSeconds === 0) setTimer();
            isRunning ? pauseTimer() : startTimer();
        });

        resetBtn.addEventListener('click', () => {
            resetTimer();
            hoursInput.value = '';
            minutesInput.value = '';
            secondsInput.value = '';
            totalSeconds = 0;
        });

        [hoursInput, minutesInput, secondsInput].forEach(input => {
            input.addEventListener('change', () => {
                if (!isRunning) setTimer();
            });
        });

        // Initial setup
        updateDisplay();
    </script>
</body>
</html>