:root {
    --md-primary-fg-color: #607d8b;
    --md-primary-fg-color--dark: #455a64;
    --md-accent-func-color: #009688;
    --md-accent-func-color--light: #4db6ac;
    --md-text-link-color: #009688;
    --md-footer-bg-color: #263238;
    --md-footer-bg-color--dark: #10171d;
    --md-footer-fg-color: #b0bec5;
    --md-footer-fg-color--light: #eceff1;
    
    --md-typeset-color: #24292e;
    --md-typeset-a-color: #009688;
    --md-code-bg-color: #f6f8fa;
    --md-code-fg-color: #24292e;
    
    --md-nav-height: 4rem;
    --md-footer-height: 5rem;
}

@media (prefers-color-scheme: dark) {
    :root {
        --md-typeset-color: #e1e4e8;
        --md-typeset-a-color: #4db6ac;
        --md-code-bg-color: #161b22;
        --md-code-fg-color: #e1e4e8;
        --md-footer-bg-color: #0d1117;
        --md-footer-fg-color: #8b949e;
        --md-footer-fg-color--light: #c9d1d9;
    }
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: #fff;
    color: var(--md-typeset-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

@media (prefers-color-scheme: dark) {
    body {
        background-color: #161b22;
    }
}


.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--md-nav-height);
    background-color: #fff;
    border-bottom: 0.05rem solid #e1e4e8;
    z-index: 1000;
    display: flex;
    align-items: center;
}

@media (prefers-color-scheme: dark) {
    .navbar {
        background-color: #161b22;
        border-bottom-color: #30363d;
    }
}

.nav-container {
    max-width: 61rem;
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--md-primary-fg-color);
    font-weight: 500;
    text-decoration: none;
    font-size: 1.1rem;
}

.nav-logo:hover {
    color: var(--md-accent-func-color);
}

.nav-logo i {
    font-size: 1.3rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--md-typeset-color);
    text-decoration: none;
    font-weight: 400;
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.2s ease;
}

@media (prefers-color-scheme: dark) {
    .nav-link {
        color: var(--md-footer-fg-color--light);
    }
}

.nav-link:hover,
.nav-link.active {
    color: var(--md-accent-func-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--md-accent-func-color);
    transition: width 0.2s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-social {
    display: flex;
    gap: 1rem;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--md-typeset-color);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

@media (prefers-color-scheme: dark) {
    .nav-toggle {
        color: var(--md-footer-fg-color--light);
    }
}

.nav-social a {
    color: var(--md-typeset-color);
    font-size: 1.1rem;
    transition: color 0.2s ease;
}

@media (prefers-color-scheme: dark) {
    .nav-social a {
        color: var(--md-footer-fg-color--light);
    }
}

.nav-social a:hover {
    color: var(--md-accent-func-color);
}

.main-content {
    flex: 1;
    margin-top: var(--md-nav-height);
    padding: 4rem 2rem;
}

.home-container {
    max-width: 40rem;
    margin: 0 auto;
    text-align: center;
}

.about-container {
    max-width: 50rem;
    margin: 0 auto;
}

.profile-img {
    border-radius: 50%;
    max-height: 15rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.home-title {
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    line-height: 1.3;
}

.home-title a {
    color: var(--md-accent-func-color);
    text-decoration: none;
}

.home-title a:hover {
    text-decoration: underline;
}

.home-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    margin-bottom: 1.5rem;
    color: var(--md-typeset-color);
}

@media (prefers-color-scheme: dark) {
    .home-subtitle {
        color: var(--md-footer-fg-color--light);
    }
}

.home-description {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: var(--md-typeset-color);
}

@media (prefers-color-scheme: dark) {
    .home-description {
        color: var(--md-footer-fg-color);
    }
}

.page-title {
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 0.05rem solid #e1e4e8;
}

@media (prefers-color-scheme: dark) {
    .page-title {
        border-bottom-color: #30363d;
    }
}

.about-content {
    font-size: 1.1rem;
    line-height: 1.8;
}

.about-content p {
    margin-bottom: 1.5rem;
}

.about-content strong {
    color: var(--md-accent-func-color);
    font-weight: 500;
}

.about-divider {
    border: none;
    border-top: 0.05rem solid #e1e4e8;
    margin: 2.5rem 0;
}

@media (prefers-color-scheme: dark) {
    .about-divider {
        border-top-color: #30363d;
    }
}

.about-content h2 {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    color: var(--md-typeset-color);
}

@media (prefers-color-scheme: dark) {
    .about-content h2 {
        color: var(--md-footer-fg-color--light);
    }
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.tech-tag {
    background-color: var(--md-code-bg-color);
    color: var(--md-primary-fg-color);
    padding: 0.4rem 1rem;
    border-radius: 2rem;
    font-size: 0.9rem;
    font-weight: 500;
    font-family: 'Roboto Mono', monospace;
}

@media (prefers-color-scheme: dark) {
    .tech-tag {
        background-color: #21262d;
        color: var(--md-accent-func-color--light);
    }
}

.about-list {
    list-style: none;
    padding: 0;
}

.about-list li {
    margin-bottom: 0.75rem;
    padding-left: 0.5rem;
}

.footer {
    background-color: var(--md-footer-bg-color);
    color: var(--md-footer-fg-color);
    padding: 2rem;
    text-align: center;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.footer-social a {
    color: var(--md-footer-fg-color);
    font-size: 1.3rem;
    transition: color 0.2s ease;
}

.footer-social a:hover {
    color: var(--md-footer-fg-color--light);
}

.footer-text {
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
    }
    
    .nav-toggle {
        display: flex;
        background: none;
        border: none;
        color: var(--md-typeset-color);
        font-size: 1.5rem;
        cursor: pointer;
        padding: 0.5rem;
    }
    
    @media (prefers-color-scheme: dark) {
        .nav-toggle {
            color: var(--md-footer-fg-color--light);
        }
    }
    
    .nav-menu {
        position: fixed;
        top: var(--md-nav-height);
        left: 0;
        right: 0;
        background-color: #fff;
        flex-direction: column;
        padding: 1rem;
        gap: 0;
        border-bottom: 0.05rem solid #e1e4e8;
        display: none;
    }
    
    @media (prefers-color-scheme: dark) {
        .nav-menu {
            background-color: #161b22;
            border-bottom-color: #30363d;
        }
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-link {
        display: block;
        padding: 1rem;
        border-bottom: 0.05rem solid #e1e4e8;
    }
    
    @media (prefers-color-scheme: dark) {
        .nav-link {
            border-bottom-color: #30363d;
        }
    }
    
    .nav-social {
        display: none;
    }
    
    .main-content {
        padding: 2rem 1rem;
    }
    
    .home-title {
        font-size: 1.5rem;
    }
    
    .home-subtitle {
        font-size: 1.2rem;
    }
}

code {
    font-family: 'Roboto Mono', 'Fira Code', monospace;
    background-color: var(--md-code-bg-color);
    padding: 0.2rem 0.4rem;
    border-radius: 0.2rem;
    font-size: 0.9em;
}

@media (prefers-color-scheme: dark) {
    code {
        background-color: #21262d;
    }
}