* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    position: relative;
    border: none;
    outline: none;
    font-family: 'Tektur', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f5f5;
    color: #333;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 12px;
}

.container {
    width: 100%;
    max-width: 480px;
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

header {
    background-color: #4a6fa5;
    color: white;
    padding: 12px 24px;
    text-align: center;
}

h1 {
    margin-bottom: 0;
    font-size: 24px;
}

.links {
    padding: 24px;
}

.links a {
    display: block;
    text-decoration: none;
    color: #4a6fa5;
    margin-bottom: 12px;
    font-size: 18px;
    transition: color 0.3s;
}

.links a:hover {
    color: #2c4a7f;
}

@media (max-width: 400px) {
    .container {
        max-width: 100%;
    }

    header {
        padding: 12px 16px;
    }

    h1 {
        font-size: 20px;
    }

    .links a {
        font-size: 16px;
    }
}