Modelo de página de login HTML CSS do SEAT Leon

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<!DOCTYPE html>
<html lang="tr">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>SEAT Leon - Giriş</title>
    <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css" rel="stylesheet">
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Helvetica Neue', Arial, sans-serif;
        }

body {
            min-height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('/api/placeholder/1920/1080');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
        }

.login-container {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            padding: 2.5rem;
            border-radius: 15px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
            width: 100%;
            max-width: 420px;
            transition: transform 0.3s ease;
        }

.login-container:hover {
            transform: translateY(-5px);
        }

.logo {
            text-align: center;
            margin-bottom: 2rem;
        }

.logo h1 {
            color: #000;
            font-size: 2rem;
            font-weight: 300;
            letter-spacing: 2px;
            margin-bottom: 0.5rem;
        }

.form-group {
            margin-bottom: 1.8rem;
            position: relative;
        }

.form-group label {
            position: absolute;
            left: 45px;
            top: 50%;
            transform: translateY(-50%);
            color: #666;
            transition: all 0.3s;
            pointer-events: none;
            font-size: 0.95rem;
        }

.form-group input {
            width: 100%;
            padding: 1.2rem 1rem 1.2rem 45px;
            border: none;
            border-radius: 10px;
            font-size: 1rem;
            transition: all 0.3s;
            background: rgba(0, 0, 0, 0.05);
        }

.form-group input:focus {
            background: rgba(0, 0, 0, 0.08);
            outline: none;
        }

.form-group input:focus + label,
        .form-group input:not(:placeholder-shown) + label {
            top: 0;
            left: 10px;
            background: white;
            padding: 0 5px;
            font-size: 0.8rem;
            color: #000;
        }

.form-group i {
            position: absolute;
            left: 15px;
            top: 50%;
            transform: translateY(-50%);
            color: #666;
        }

.submit-btn {
            width: 100%;
            padding: 1.2rem;
            background: #000;
            color: white;
            border: none;
            border-radius: 10px;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s;
            font-weight: 500;
            letter-spacing: 1px;
            margin-top: 1rem;
            text-transform: uppercase;
        }

.submit-btn:hover {
            background: #333;
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
        }

.links {
            margin-top: 1.8rem;
            text-align: center;
            font-size: 0.9rem;
            display: flex;
            justify-content: space-around;
        }

.links a {
            color: #333;
            text-decoration: none;
            transition: all 0.3s;
            position: relative;
            padding-bottom: 3px;
        }

.links a::after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: 0;
            left: 0;
            background-color: #000;
            transition: width 0.3s;
        }

.links a:hover::after {
            width: 100%;
        }

.links a:hover {
            color: #000;
        }

@media (max-width: 480px) {
            .login-container {
                margin: 1rem;
                padding: 2rem;
            }
        }
    </style>
</head>
<body>
    <div class="login-container">
        <div class="logo">
            <h1>LEON</h1>
        </div>
        <form>
            <div class="form-group">
                <input type="email" id="email" placeholder=" ">
                <label for="email">E-posta Adresi</label>
                <i class="fas fa-envelope"></i>
            </div>
            <div class="form-group">
                <input type="password" id="password" placeholder=" ">
                <label for="password">Şifre</label>
                <i class="fas fa-lock"></i>
            </div>
            <button type="submit" class="submit-btn">Giriş Yap</button>
        </form>
        <div class="links">
            <a href="#">Şifremi Unuttum</a>
            <a href="#">Yeni Hesap Oluştur</a>
        </div>
    </div>
</body>
</html>

CSS

/* Reset ve genel stiller */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

body {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('background-image.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

/* Login container stilleri */
.login-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 420px;
    transition: transform 0.3s ease;
}

.login-container:hover {
    transform: translateY(-5px);
}

/* Logo stilleri */
.logo {
    text-align: center;
    margin-bottom: 2rem;
}

.logo h1 {
    color: #000;
    font-size: 2rem;
    font-weight: 300;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

/* Form grup stilleri */
.form-group {
    margin-bottom: 1.8rem;
    position: relative;
}

.form-group label {
    position: absolute;
    left: 45px;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
    transition: all 0.3s;
    pointer-events: none;
    font-size: 0.95rem;
}

.form-group input {
    width: 100%;
    padding: 1.2rem 1rem 1.2rem 45px;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s;
    background: rgba(0, 0, 0, 0.05);
}

.form-group input:focus {
    background: rgba(0, 0, 0, 0.08);
    outline: none;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label {
    top: 0;
    left: 10px;
    background: white;
    padding: 0 5px;
    font-size: 0.8rem;
    color: #000;
}

.form-group i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #666;
}

/* Buton stilleri */
.submit-btn {
    width: 100%;
    padding: 1.2rem;
    background: #000;
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
    letter-spacing: 1px;
    margin-top: 1rem;
    text-transform: uppercase;
}

.submit-btn:hover {
    background: #333;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* Link stilleri */
.links {
    margin-top: 1.8rem;
    text-align: center;
    font-size: 0.9rem;
    display: flex;
    justify-content: space-around;
}

.links a {
    color: #333;
    text-decoration: none;
    transition: all 0.3s;
    position: relative;
    padding-bottom: 3px;
}

.links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #000;
    transition: width 0.3s;
}

.links a:hover::after {
    width: 100%;
}

.links a:hover {
    color: #000;
}

/* Responsive tasarım */
@media (max-width: 480px) {
    .login-container {
        margin: 1rem;
        padding: 2rem;
    }
}

JS

// Form doğrulama ve animasyon işlemleri
document.addEventListener('DOMContentLoaded', function() {
    // Form elementlerini seç
    const form = document.querySelector('form');
    const emailInput = document.querySelector('#email');
    const passwordInput = document.querySelector('#password');
    const submitBtn = document.querySelector('.submit-btn');

// Form gönderim işlemi
    form.addEventListener('submit', function(e) {
        e.preventDefault();
        
        // Form doğrulama
        if (validateForm()) {
            // Loading efekti
            submitBtn.innerHTML = 'Giriş Yapılıyor...';
            submitBtn.disabled = true;
            
            // API çağrısı simülasyonu
            setTimeout(() => {
                submitBtn.innerHTML = 'Giriş Başarılı!';
                submitBtn.style.background = '#28a745';
                
                // Yönlendirme simülasyonu
                setTimeout(() => {
                    window.location.href = '/dashboard';
                }, 1000);
            }, 2000);
        }
    });

// Form doğrulama fonksiyonu
    function validateForm() {
        let isValid = true;
        
        // Email doğrulama
        if (!emailInput.value || !isValidEmail(emailInput.value)) {
            showError(emailInput, 'Geçerli bir email adresi giriniz');
            isValid = false;
        } else {
            removeError(emailInput);
        }
        
        // Şifre doğrulama
        if (!passwordInput.value || passwordInput.value.length < 6) {
            showError(passwordInput, 'Şifre en az 6 karakter olmalıdır');
            isValid = false;
        } else {
            removeError(passwordInput);
        }
        
        return isValid;
    }

// Email format doğrulama
    function isValidEmail(email) {
        const re = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
        return re.test(email);
    }

// Hata mesajı gösterme
    function showError(input, message) {
        const formGroup = input.parentElement;
        if (!formGroup.querySelector('.error-message')) {
            const errorDiv = document.createElement('div');
            errorDiv.className = 'error-message';
            errorDiv.style.color = '#dc3545';
            errorDiv.style.fontSize = '0.8rem';
            errorDiv.style.marginTop = '5px';
            errorDiv.textContent = message;
            formGroup.appendChild(errorDiv);
        }
        input.style.borderColor = '#dc3545';
    }

// Hata mesajını kaldırma
    function removeError(input) {
        const formGroup = input.parentElement;
        const errorDiv = formGroup.querySelector('.error-message');
        if (errorDiv) {
            formGroup.removeChild(errorDiv);
        }
        input.style.borderColor = '';
    }

// Input focus animasyonları
    const inputs = document.querySelectorAll('.form-group input');
    inputs.forEach(input => {
        // Focus olduğunda container'a active class ekle
        input.addEventListener('focus', function() {
            this.parentElement.classList.add('active');
        });

// Focus kaldırıldığında ve input boşsa active class'ı kaldır
        input.addEventListener('blur', function() {
            if (!this.value) {
                this.parentElement.classList.remove('active');
            }
        });
    });
});

// Parola göster/gizle fonksiyonu
const togglePassword = document.querySelector('.toggle-password');
if (togglePassword) {
    togglePassword.addEventListener('click', function() {
        const password = document.querySelector('#password');
        const type = password.getAttribute('type') === 'password' ? 'text' : 'password';
        password.setAttribute('type', type);
        this.classList.toggle('fa-eye-slash');
    });
}

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