*, *::before, *::after {
    box-sizing: border-box;
}

:root{
    --bg-light: #FFFFFF;
    --bg-dark: #202020;
    --text-primary: #0E0E0E;
    --text-secondary: #090909;
    --text-light: #ECECEC;
    --text-muted: #D7D7D7;
    --font-main: "Source Sans 3";
}

html, body{
    margin: 0;
    padding: 0;
    font-family: var(--font-main), sans-serif;
    line-height: 1.5;
}

body{
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

img {
    max-width: 100%;
    display: block;
}

header{
    display: flex;
    background-color: var(--bg-light);
    flex-direction: row;
    padding: clamp(1rem, 2vw, 2rem) clamp(1rem, 5vw, 4rem);
    align-items: center;
}

.home-link{
    display: flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
    margin-right: auto;
}

header img{
    height: clamp(24px, 5vw, 48px);
    width: auto;
    margin-right: clamp(0.5rem, 2vw, 1.5rem);
}

header h1{
    font-size: clamp(0.85rem, 2.5vw, 1.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    margin-right: auto;
}

header nav ul{
    display: flex;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: clamp(1rem, 4vw, 3rem);
}

header nav a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: clamp(0.75rem, 2vw, 1.125rem);
    text-transform: uppercase;
    transition: color 0.2s ease, text-decoration 0.2s ease;
}

header nav a:hover, header nav a:focus {
    color: var(--text-primary);
    text-decoration: underline;
    outline: none;
}

.home-link:focus{
    outline: 2px solid var(--text-primary);
    border-radius: 4px;
}

footer{
    background-color: var(--bg-dark);
    padding: clamp(1.5rem, 3vw, 2.5rem) 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: clamp(0.25rem, 0.5vw, 0.5rem);
}

.footer-title{
    margin: 0;
    font-weight: 700;
    font-size: clamp(0.75rem, 1.5vw, 1rem);
    color: var(--text-light);
    letter-spacing: -0.03em;
}

.footer-copyright{
    margin: 0;
    font-size: clamp(0.75rem, 1.5vw, 1rem);
    color: var(--text-muted);
    font-weight: 400;
}

.about-me{
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: clamp(1rem, 2vw, 2rem);
}

.about-me img{
    border-radius: 50%;
    width: clamp(100px, 20vw, 200px);
    height: auto;
    margin-bottom: clamp(1rem, 2vw, 2rem);
}

.about-me h2{
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    text-align: center;
}

.about-me p{
    font-size: clamp(1rem, 2vw, 1.5rem);
    color: var(--text-secondary);
    text-align: center;
}

.blog-list{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: clamp(1rem, 2vw, 2rem);
    padding: clamp(1rem, 2vw, 2rem);
    max-width: 100vw;
    margin: 0 auto;
}

.blog-list article{
    background-color: var(--bg-light);
    padding: clamp(1rem, 2vw, 2rem);
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.blog-list article h3, .blog-list article p{
    margin: clamp(0.5rem, 1vw, 1rem) 0;
}

.recent-posts{
    display: block;
    text-align: center;
}

.recent-posts p{
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: clamp(0.75rem, 2vw, 1.125rem);
    text-transform: uppercase;
    margin: 0;
}

.blog-content{
    display: flex;
    flex-direction: column;
    padding: clamp(1rem, 2vw, 2rem);
}

.blog-content h3{
    font-size: clamp(1.25rem, 2.5vw, 2rem);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0.5rem 0;
}

.blog-content p{
    font-size: clamp(1rem, 2vw, 1.5rem);
    color: var(--text-secondary);
}

@media (min-width: 768px){
    .about-me{
        flex-direction: row;
    }
}