<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Keskitetty kirjautumissivu</title>
    <link href="https://fonts.cdnfonts.com/css/coolvetica" rel="stylesheet">
    <style>
        body {
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            margin: 0;
            font-family: 'Roboto', sans-serif;
            background-color: #121212;
            color: #ffffff;
        }
        .login-container {
            text-align: center;
            background: #1e1e1e;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
            width: 90%;
            max-width: 400px;
            margin: auto;
            display: flex;
            flex-direction: column;
            align-items: center;
        }
        .login-container img {
            max-width: 100px;
            margin-bottom: 20px;
            border-radius: 50%;
            border: 4px solid #012f6c;
        }
        .login-container input[type="text"],
        .login-container input[type="password"] {
            width: 100%;
            padding: 15px;
            margin-bottom: 15px;
            border: 1px solid #333;
            border-radius: 5px;
            background-color: #2c2c2c;
            color: #ffffff;
            box-sizing: border-box;
        }
        .login-container input[type="text"]::placeholder,
        .login-container input[type="password"]::placeholder {
            color: #888;
        }
        .login-container button {
            padding: 15px 30px;
            border: none;
            background-color: #012f6c;
            color: #fff;
            border-radius: 5px;
            cursor: pointer;
        }
        @media (min-width: 600px) {
            .login-container {
                padding: 40px;
            }
            .login-container img {
                max-width: 150px;
            }
        }
        @media (min-width: 768px) {
            .login-container {
                padding: 50px;
            }
            .login-container img {
                max-width: 200px;
            }
        }
    </style>
</head>
<body>
    <div class="login-container">
        <img src="logo.png" alt="Company Logo">
        <h2>Kirjaudu sisään</h2>
        <input type="text" placeholder="Käyttäjätunnus">
        <input type="password" placeholder="Salasana">
        <button>Kirjaudu</button>
    </div>
</body>
</html>