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

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<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
    <meta charset="utf-8">
    <title>Palindrome Checker</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <style>
        @import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Poppins', sans-serif;
        }

        body {
            display: flex;
            align-items: center;
            justify-content: center;
            min-height: 100vh;
            background: linear-gradient(135deg, #dde1e7, #f8f9fa);
        }

        .wrapper {
            max-width: 500px;
            background: #dde1e7;
            border-radius: 15px;
            padding: 25px;
            box-shadow: 10px 10px 20px #babecc, -10px -10px 20px #ffffff;
            text-align: center;
        }

        header h1 {
            font-size: 27px;
            font-weight: 600;
            color: #555;
        }

        header p {
            margin-top: 5px;
            font-size: 18px;
            color: #777;
        }

        .inputs {
            margin: 20px 0 27px;
        }

        .inputs input {
            width: 100%;
            height: 60px;
            outline: none;
            padding: 0 17px;
            font-size: 19px;
            border-radius: 10px;
            border: none;
            background: #dde1e7;
            box-shadow: inset 5px 5px 10px #babecc, inset -5px -5px 10px #ffffff;
            text-align: center;
        }

        .inputs button {
            width: 100%;
            height: 56px;
            border: none;
            outline: none;
            color: #0f0e0e;
            cursor: pointer;
            font-size: 17px;
            margin-top: 15px;
            border-radius: 10px;
            background: #74a3ea;
            box-shadow: 5px 5px 10px #babecc, -5px -5px 10px #ffffff;
            transition: 0.2s;
        }

        .inputs button:active {
            box-shadow: inset 5px 5px 10px #babecc, inset -5px -5px 10px #ffffff;
        }

        .info-txt {
            display: none;
            font-size: 19px;
            margin-top: 15px;
            color: #555;
        }

        .info-txt span {
            color: #6c63ff;
            font-weight: bold;
        }
    </style>
</head>
<body>
    <div class="wrapper">
        <header>
            <h1>Palindrome Checker</h1>
            <p>Check if a word, number, or sentence reads the same backward.</p>
        </header>
        <div class="inputs">
            <input type="text" spellcheck="false" placeholder="Enter text, number, or sentence">
            <button id="checkBtn">Check Palindrome</button>
            <button id="resetBtn">Reset</button>
        </div>
        <p class="info-txt"></p>
    </div>
    <script>
        const txtInput = document.querySelector(".inputs input"),
              checkBtn = document.getElementById("checkBtn"),
              resetBtn = document.getElementById("resetBtn"),
              infoTxt = document.querySelector(".info-txt");

        checkBtn.addEventListener("click", () => {
            let userInput = txtInput.value.trim();
            if (!userInput) {
                infoTxt.style.display = "block";
                infoTxt.innerHTML = "Please enter a valid text, number, or sentence.";
                return;
            }

            let filteredInput = userInput.toLowerCase().replace(/[^a-z0-9]/g, "");
            let reversedInput = filteredInput.split("").reverse().join("");

            infoTxt.style.display = "block";
            if (filteredInput !== reversedInput) {
                infoTxt.innerHTML = `No, <span>'${userInput}'</span> isn't a palindrome!`;
            } else {
                infoTxt.innerHTML = `Yes, <span>'${userInput}'</span> is a palindrome!`;
            }
        });

        resetBtn.addEventListener("click", () => {
            txtInput.value = "";
            infoTxt.style.display = "none";
        });
    </script>
</body>
</html>