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

body {
    background-color: #22212C;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100vh;
}

.container {
    color: #18181a;
    font-family: Merriweather Sans;
    text-align: justify;
    background-color: white;
    border: 2px solid green;
    border-radius: 20px;
    margin: 50px auto;

    display: flex;
    flex-direction: column;

    width: 100%;
    max-width: 1380px;

    padding: 45px;
}

h1 {
    font-size: 30px;
    font-weight: 700;
    text-align: center;

    padding-bottom: 25px;
}

h2 {
    font-size: 20px;
    font-weight: 700;

    padding-bottom: 15px;
}

h3 {
    font-size: 16px;
    font-weight: 700;

    text-align: center;
    padding: 20px 30px;
}

p {
    font-size: 13px;
    font-weight: 400;
}

.introduction {
    padding-bottom: 30px;
}

.timeline {
    padding-bottom: 30px;
}

.timeline img {
    display: block;
    margin-left: auto;
    margin-right: auto;

    width: 100%;
    max-width: 950px;

    padding: 30px 0px;
}

.definition {
    padding-bottom: 30px;
}

.caption {
    font-size: 12px;
    font-weight: 300;
    text-align: center;

    padding: 0px 0px 15px;
}

.definition img {
    display: block;
    margin-left: auto;
    margin-right: auto;

    width: 100%;
    max-width: 700px;

    padding: 30px 0px;
}

.architecture {
    padding-bottom: 30px;
}

.architecture .middle {
    padding: 15px 0px;
    display: flex;
    align-items: center;
    gap: 60px;
}

.architecture img {
    display: block;
    margin-left: auto;
    margin-right: auto;

    width: 100%;
    max-width: 400px;

    padding: 30px 30px 30px 0px;
}

.types ul {
    display: grid;
    list-style: none;
    padding: 30px 0px;
    grid-template-columns: repeat(3, 1fr);
    grid-gap: 30px 30px;
}

.types ul li {
    background-color: rgba(0, 0, 0, 0.1);
    border-radius: 20px;
}

.types ul p {
    padding: 0px 20px 20px;
}

footer {
    padding: 30px 0px 0px;
    text-align: center;
    font-size: 13px;
    font-weight: 300;
}

footer a {
    text-decoration: none;
    color: #18181a;
}

@media (max-width: 1440px) {
    .container {
        max-width: 1300px;
    }
}

@media (max-width: 1024px) {
    .container {
        max-width: 960px;
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 700px;
    }

    h1 {
        font-size: 24px;
    }
    
    h2 {
        font-size: 16px;
    }
    
    h3 {
        font-size: 12px;
    }

    .caption {
        font-size: 10px;
    }

    p {
        font-size: 12px;
        font-weight: 300;
    }

    .architecture .middle {
        display: flex;
        flex-direction: column-reverse;
        align-items: center;
        justify-content: center;
        gap: 15px;
    }

    .architecture img {
        max-width: 450px;
    }

    .types ul {
        display: flex;
        flex-direction: column;
        list-style: none;
        padding: 30px 0px;
        gap: 30px;
    }
}

@media (max-width: 425px) {
    .container {
        max-width: 380px;
    }

    h1 {
        font-size: 20px;
    }
    
    h2 {
        font-size: 14px;
    }
    
    h3 {
        font-size: 10px;
    }

    .caption {
        font-size: 8px;
    }

    p {
        font-size: 10px;
        font-weight: 300;
    }

    .architecture .middle {
        display: flex;
        flex-direction: column-reverse;
        align-items: center;
        justify-content: center;
        gap: 15px;
    }

    .architecture img {
        max-width: 300px;
    }

    .types ul {
        display: flex;
        flex-direction: column;
        list-style: none;
        padding: 30px 0px;
        gap: 30px;
    }
}

@media (max-width: 375px) {
    .container {
        max-width: 340px;
    }
}