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

:root {
    --bg-warm: #FAF7F2;
    --bg-card: #FFFFFF;
    --text-primary: #2D2A26;
    --text-secondary: #6B6560;
    --accent: #8B7355;
    --border: #E8E4DE;
    --max-width: 680px;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-warm);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

header {
    padding: 2rem 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 3rem;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

main {
    flex: 1;
    padding-bottom: 4rem;
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h2 {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    margin-top: 2rem;
}

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: opacity 0.2s ease;
}

a:hover {
    opacity: 0.8;
}

.intro {
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.social-links a:hover {
    color: var(--text-primary);
}

.blog-list {
    list-style: none;
}

.blog-list li {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--border);
}

.blog-list li:last-child {
    border-bottom: none;
}

.blog-list h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.blog-list h3 a {
    color: var(--text-primary);
}

.blog-list h3 a:hover {
    color: var(--accent);
}

.blog-list .date {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.blog-list .excerpt {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 0;
}

.project-list {
    display: grid;
    gap: 1.5rem;
}

.project-card {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.project-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.project-card p {
    font-size: 0.9rem;
    margin: 0;
}

.project-card .tech {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-top: 0.75rem;
}

.project-card .tech span {
    font-size: 0.75rem;
    padding: 0.2rem 0.5rem;
    background: var(--bg-warm);
    border-radius: 4px;
    color: var(--text-secondary);
}

footer {
    padding: 2rem 0;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

footer a {
    color: var(--text-secondary);
}

footer a:hover {
    color: var(--text-primary);
}

@media (max-width: 600px) {
    header {
        padding: 1.5rem 0;
        margin-bottom: 2rem;
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    h2 {
        font-size: 1.25rem;
    }
    
    nav {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .logo {
        font-size: 1.1rem;
    }
    
    .nav-links {
        gap: 1.25rem;
    }
    
    .nav-links a {
        font-size: 0.9rem;
    }
    
    .container {
        padding: 0 1.25rem;
    }
    
    .intro {
        font-size: 1rem;
    }
    
    .project-card {
        padding: 1.25rem;
    }
    
    footer {
        padding: 1.5rem 0;
    }
}