:root {
    --primary-color: #006a4e;
    --secondary-color: #00a86b;
    --background-color: #333;
    --text-color: #fff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Roboto", sans-serif;
    font-optical-sizing: auto;
    font-style: normal;
}

body {
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 1rem;
    min-height: 100vh;
}

header img {
    width: 400px;
    height: 400px;
    margin-bottom: 1rem;
}

header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}