form_inline.html

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Form A - Inline Validation</title>
    <style>
        @import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
        }

        .container {
            background: white;
            max-width: 540px;
            width: 100%;
            padding: 48px;
            border-radius: 24px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
        }

        h1 {
            color: #1a202c;
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 8px;
            text-align: center;
        }

        .subtitle {
            color: #718096;
            font-size: 16px;
            margin-bottom: 36px;
            text-align: center;
            font-weight: 500;
        }

        .form-group {
            margin-bottom: 24px;
        }

        label {
            display: block;
            margin-bottom: 8px;
            font-weight: 600;
            color: #2d3748;
            font-size: 14px;
            letter-spacing: 0.3px;
        }

        input,
        select {
            width: 100%;
            padding: 14px 16px;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            font-size: 15px;
            font-family: inherit;
            transition: all 0.3s ease;
            background: #f7fafc;
        }

        input:focus,
        select:focus {
            outline: none;
            border-color: #667eea;
            background: white;
            box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
        }

        input.error {
            border-color: #fc8181;
            background: #fff5f5;
        }

        .error-message {
            color: #e53e3e;
            font-size: 13px;
            margin-top: 6px;
            display: none;
            font-weight: 500;
        }

        .error-message.show {
            display: block;
            animation: slideDown 0.3s ease;
        }

        @keyframes slideDown {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        button {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 16px 32px;
            border: none;
            border-radius: 12px;
            cursor: pointer;
            font-size: 16px;
            font-weight: 600;
            width: 100%;
            margin-top: 12px;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
        }

        button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
        }

        button:active {
            transform: translateY(0);
        }

        .results {
            display: none;
        }

        .results.show {
            display: block;
            animation: fadeIn 0.5s ease;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
            }

            to {
                opacity: 1;
            }
        }

        .result-item {
            background: linear-gradient(135deg, #f6f8fb 0%, #e9ecf5 100%);
            padding: 24px;
            margin: 16px 0;
            border-radius: 16px;
            border-left: 5px solid #667eea;
            transition: transform 0.3s ease;
        }

        .result-item:hover {
            transform: translateX(5px);
        }

        .result-label {
            font-weight: 600;
            color: #4a5568;
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }

        .result-value {
            font-size: 36px;
            font-weight: 700;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
    </style>
</head>

<body>
    <div class="container">
        <div id="formSection">
            <h1>User Registration Form</h1>
            <p class="subtitle">Version A: Inline Validation</p>

            <form id="userForm">
                <div class="form-group">
                    <label for="fullName">Full Name *</label>
                    <input type="text" id="fullName" name="fullName" required>
                    <div class="error-message" id="fullNameError">Please enter your full name (at least 2 words)</div>
                </div>

                <div class="form-group">
                    <label for="email">Email Address *</label>
                    <input type="email" id="email" name="email" required>
                    <div class="error-message" id="emailError">Please enter a valid email address</div>
                </div>

                <div class="form-group">
                    <label for="phone">Phone Number *</label>
                    <input type="tel" id="phone" name="phone" required>
                    <div class="error-message" id="phoneError">Please enter a valid 10-digit phone number</div>
                </div>

                <div class="form-group">
                    <label for="age">Age *</label>
                    <input type="number" id="age" name="age" required>
                    <div class="error-message" id="ageError">Age must be between 18 and 120</div>
                </div>

                <div class="form-group">
                    <label for="country">Country *</label>
                    <select id="country" name="country" required>
                        <option value="">Select a country</option>
                        <option value="US">United States</option>
                        <option value="CA">Canada</option>
                        <option value="UK">United Kingdom</option>
                        <option value="AU">Australia</option>
                        <option value="DE">Germany</option>
                        <option value="FR">France</option>
                        <option value="JP">Japan</option>
                        <option value="IN">India</option>
                        <option value="BR">Brazil</option>
                        <option value="MX">Mexico</option>
                    </select>
                    <div class="error-message" id="countryError">Please select a country</div>
                </div>

                <button type="submit">Submit</button>
            </form>
        </div>

        <div id="resultsSection" class="results">
            <h1>Submission Successful!</h1>
            <p class="subtitle">Thank you for completing the form</p>

            <div class="result-item">
                <div class="result-label">Completion Time</div>
                <div class="result-value" id="completionTime">0</div>
            </div>

            <div class="result-item">
                <div class="result-label">Number of Error Messages</div>
                <div class="result-value" id="errorCount">0</div>
            </div>

            <div class="result-item">
                <div class="result-label">Submission Attempts</div>
                <div class="result-value" id="attemptCount">0</div>
            </div>
        </div>
    </div>

    <script>
        let startTime = Date.now();
        let errorCount = 0;
        let attemptCount = 0;

        const form = document.getElementById('userForm');
        const inputs = {
            fullName: document.getElementById('fullName'),
            email: document.getElementById('email'),
            phone: document.getElementById('phone'),
            age: document.getElementById('age'),
            country: document.getElementById('country')
        };

        function validateFullName(value) {
            const words = value.trim().split(/\s+/);
            return words.length >= 2 && words.every(w => w.length > 0);
        }

        function validateEmail(value) {
            return /^[^\s@]+@[^\s@]+\.[^\s@]+$/.test(value);
        }

        function validatePhone(value) {
            const digits = value.replace(/\D/g, '');
            return digits.length === 10;
        }

        function validateAge(value) {
            const age = parseInt(value);
            return !isNaN(age) && age >= 18 && age <= 120;
        }

        function validateCountry(value) {
            return value !== '';
        }

        function showError(fieldId, show) {
            const input = inputs[fieldId];
            const errorDiv = document.getElementById(fieldId + 'Error');

            if (show) {
                input.classList.add('error');
                errorDiv.classList.add('show');
                errorCount++;
            } else {
                input.classList.remove('error');
                errorDiv.classList.remove('show');
            }
        }

        // Inline validation on blur
        inputs.fullName.addEventListener('blur', function () {
            if (this.value && !validateFullName(this.value)) {
                showError('fullName', true);
            }
        });

        inputs.fullName.addEventListener('input', function () {
            if (this.classList.contains('error') && validateFullName(this.value)) {
                showError('fullName', false);
            }
        });

        inputs.email.addEventListener('blur', function () {
            if (this.value && !validateEmail(this.value)) {
                showError('email', true);
            }
        });

        inputs.email.addEventListener('input', function () {
            if (this.classList.contains('error') && validateEmail(this.value)) {
                showError('email', false);
            }
        });

        inputs.phone.addEventListener('blur', function () {
            if (this.value && !validatePhone(this.value)) {
                showError('phone', true);
            }
        });

        inputs.phone.addEventListener('input', function () {
            if (this.classList.contains('error') && validatePhone(this.value)) {
                showError('phone', false);
            }
        });

        inputs.age.addEventListener('blur', function () {
            if (this.value && !validateAge(this.value)) {
                showError('age', true);
            }
        });

        inputs.age.addEventListener('input', function () {
            if (this.classList.contains('error') && validateAge(this.value)) {
                showError('age', false);
            }
        });

        inputs.country.addEventListener('change', function () {
            if (this.value) {
                showError('country', false);
            }
        });

        form.addEventListener('submit', function (e) {
            e.preventDefault();
            attemptCount++;

            let isValid = true;

            // Clear previous errors for validation
            Object.keys(inputs).forEach(key => {
                inputs[key].classList.remove('error');
                document.getElementById(key + 'Error').classList.remove('show');
            });

            // Validate all fields
            if (!validateFullName(inputs.fullName.value)) {
                showError('fullName', true);
                isValid = false;
            }

            if (!validateEmail(inputs.email.value)) {
                showError('email', true);
                isValid = false;
            }

            if (!validatePhone(inputs.phone.value)) {
                showError('phone', true);
                isValid = false;
            }

            if (!validateAge(inputs.age.value)) {
                showError('age', true);
                isValid = false;
            }

            if (!validateCountry(inputs.country.value)) {
                showError('country', true);
                isValid = false;
            }

            if (isValid) {
                const completionTime = ((Date.now() - startTime) / 1000).toFixed(2);

                document.getElementById('completionTime').textContent = completionTime + ' seconds';
                document.getElementById('errorCount').textContent = errorCount;
                document.getElementById('attemptCount').textContent = attemptCount;

                document.getElementById('formSection').style.display = 'none';
                document.getElementById('resultsSection').classList.add('show');
            }
        });
    </script>
</body>

</html>