@import url('https://fonts.googleapis.com/css2?family=Nunito+Sans:wght@300;600;800&display=swap');

/* ===== CSS VARIABLES ===== */
:root {
    /* Light mode colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #fafafa;
    --color-bg-accent: #f5f5f5;
    
    --color-text-primary: #000000;
    --color-text-secondary: #333333;
    --color-text-muted: #666666;
    --color-text-light: #999999;
    
    --color-border: #e5e5e5;
    --color-border-dark: #cccccc;
    
    /* Typography */
    --font-family: 'Nunito Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', 'Monaco', 'Consolas', 'Courier New', monospace;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    
    /* Layout */
    --max-width: 720px;
}

/* Dark mode - overwrites the color variables */
:root.dark {
    --color-bg-primary: hsl(207, 26%, 17%);
    --color-bg-secondary: hsl(209, 23%, 22%);
    --color-bg-accent: hsl(209, 23%, 25%);
    
    --color-text-primary: hsl(0, 0%, 100%);
    --color-text-secondary: hsl(0, 0%, 90%);
    --color-text-muted: hsl(0, 0%, 70%);
    --color-text-light: hsl(0, 0%, 52%);
    
    --color-border: hsl(209, 23%, 30%);
    --color-border-dark: hsl(209, 23%, 35%);
}

/* Respect user's system preference if they haven't manually chosen */
@media (prefers-color-scheme: dark) {
    :root:not(.light):not(.dark) {
        --color-bg-primary: hsl(207, 26%, 17%);
        --color-bg-secondary: hsl(209, 23%, 22%);
        --color-bg-accent: hsl(209, 23%, 25%);
        
        --color-text-primary: hsl(0, 0%, 100%);
        --color-text-secondary: hsl(0, 0%, 90%);
        --color-text-muted: hsl(0, 0%, 70%);
        --color-text-light: hsl(0, 0%, 52%);
        
        --color-border: hsl(209, 23%, 30%);
        --color-border-dark: hsl(209, 23%, 35%);
    }
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    -webkit-font-smoothing: antialiased;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3 {
    font-weight: 600;
    line-height: 1.2;
}

a {
    color: var(--color-text-primary);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
    transition: opacity 0.2s ease;
}

a:hover {
    opacity: 0.6;
}

svg {
    width: 1.5rem;
}

.toggle {
    padding: var(--space-lg) 0;
}

.theme-toggle {
    background: none;
    border: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: var(--color-text-primary);
    transition: opacity 0.2s ease;
}

.theme-toggle:hover {
    opacity: 0.7;
}

/* ===== LAYOUT ===== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-block: 1rem;    
}

/* ===== HEADER ===== */
.header {
    border-bottom: 1px solid var(--color-border);
    margin: 0 auto;
}

.header img {
    border-radius: 100%;
}

.site-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--space-xs);
    color: var(--color-text-primary);
}

.site-tagline {
    font-size: 1rem;
    color: var(--color-text-muted);
    font-weight: 400;
}

/* ===== MAIN CONTENT ===== */
.main {
    padding: var(--space-lg) 0;
}

/* ===== INTRODUCTION ===== */
.intro {
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--color-border);
    position: relative;
}

.intro-text {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.intro-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
}

.intro-links {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.intro-links a {
    font-size: 0.95rem;
    text-decoration: none;
    color: var(--color-text-primary);
    border: 0.5px solid var(--color-text-primary);
    padding: 0.3rem 1rem;
    border-radius: 100vw;
    transition: opacity 0.2s ease;
    display: flex; 
    gap: 0.5rem;
    align-items: center;
}

.intro-links a:hover {
    opacity: 0.7;
}

.arrow-icon {
    fill: currentColor;
    width: 0.5rem;
}


/* ===== SECTIONS ===== */
.section {
    margin-bottom: var(--space-xl);
}

.section-heading {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
}

/* ===== PROJECTS ===== */
.project-list {
    list-style: none;
}

.project-item {
    margin-bottom: var(--space-lg);
    background-color: var(--color-bg-secondary);
    padding-bottom: var(--space-lg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.project-link {
    display: block;
    text-decoration: none;
    color: inherit;
    transition: opacity 0.2s ease;
}

.project-link:hover {
    opacity: 1;
}

.project-link:hover .project-thumbnail {
    opacity: 0.8;
}

.project-thumbnail {
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    margin-bottom: var(--space-sm);
    overflow: hidden;
    transition: opacity 0.2s ease;
}

.placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    background-size: cover;
    background-position: center;
}

.project-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-info {
    padding-left: var(--space-xs);
}

.project-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--color-text-primary);
}

.project-description {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-xs);
}

.project-meta {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.project-tech {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
}

/* ===== SKILLS ===== */
.skills {
    background-color: var(--color-bg-primary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    grid-gap: var(--space-md);
    max-width: 900px;
    margin: 0 auto;
}

.skill-category {
    background-color: var(--color-bg-secondary);
    padding: var(--space-md);
    border-radius: 0.5rem;
    border: 1px solid var(--color-border);
}

.skill-category-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
}

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

.skill-list li {
    padding: var(--space-xs) 0;
    color: var(--color-text-secondary);
}

/* ===== FOOTER ===== */
.footer {
    padding: var(--space-xl) 0 var(--space-lg);
    border-top: 1px solid var(--color-border);
    margin-top: var(--space-xl);
}

.footer-links {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.footer-links a {
    font-size: 0.9rem;
    text-decoration: none;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 1px;
}

.footer-links a:hover {
    color: var(--color-text-primary);
    border-bottom-color: var(--color-border-dark);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    :root {
        --space-xl: 3rem;
        --space-lg: 2rem;
    }
    
    .site-title {
        font-size: 2rem;
    }
    
    .intro-text {
        font-size: 1.125rem;
    }
}

@media (max-width: 480px) {
    :root {
        --space-md: 1rem;
        --space-lg: 1.5rem;
        --space-xl: 2rem;
    }
    
    body {
        font-size: 15px;
    }
    
    .site-title {
        font-size: 1.75rem;
    }
    
    .section-heading {
        font-size: 1.25rem;
    }
}

/* ===== FADE-IN ANIMATION ===== */
.fade-in {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}
```

## Key Changes Made:

1. **Organized all color variables** at the top with semantic names
2. **Replaced every instance** of old color variables (`--black`, `--gray`, `--white`, etc.) with the new semantic ones
3. **Added cursor pointer** to the theme toggle button
4. **Removed the redundant media query** at the bottom that was causing conflicts
5. **Made dark mode properly functional** - now when you add the `.dark` class to `<html>`, everything updates automatically

## To Make the Toggle Work:

You'll need this JavaScript in your `main.js`:

```javascript
const themeToggle = document.querySelector('.theme-toggle');
const html = document.documentElement;

// Check for saved theme preference or default to system preference
const currentTheme = localStorage.getItem('theme');
if (currentTheme) {
    html.classList.add(currentTheme);
}

themeToggle.addEventListener('click', () => {
    // Toggle between light and dark
    if (html.classList.contains('dark')) {
        html.classList.remove('dark');
        html.classList.add('light');
        localStorage.setItem('theme', 'light');
    } else {
        html.classList.remove('light');
        html.classList.add('dark');
        localStorage.setItem('theme', 'dark');
    }
});