:root {
    --bg-color: #050505;
    --text-main: #e0e0e0;
    --text-dim: #a0a0a0;
    --primary: #00f3ff;
    --secondary: #ff00ff;
    --accent: #00ff41; /* Matrix green */
    --surface: #111111;
    --border: #333333;
    
    --font-mono: 'Courier New', Courier, monospace;
    --spacing-unit: 1rem;
    --max-width: 900px;
}

* {
    box-sizing: border-box;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-mono);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* Scanline effect */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: linear-gradient(
        to bottom,
        rgba(255, 255, 255, 0),
        rgba(255, 255, 255, 0) 50%,
        rgba(0, 0, 0, 0.1) 50%,
        rgba(0, 0, 0, 0.1)
    );
    background-size: 100% 4px;
    pointer-events: none;
    z-index: 1000;
}

/* Container for main content */
main, header {
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-unit);
    padding-right: var(--spacing-unit);
    position: relative;
    z-index: 1;
}

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

/* Navigation */
.main-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: flex-start;
}

.main-nav li {
    margin: 0;
}

.main-nav a {
    text-decoration: none;
    color: var(--text-dim);
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.5rem 1rem;
    border: 1px solid transparent;
    transition: all 0.3s ease;
    position: relative;
}

.main-nav a::before {
    content: '> ';
    color: var(--primary);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.main-nav a:hover, .main-nav a:focus {
    color: var(--primary);
    border-color: var(--primary);
    background-color: rgba(0, 243, 255, 0.05);
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.2);
}

.main-nav a:hover::before {
    opacity: 1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-main);
    text-transform: uppercase;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    font-weight: normal;
    letter-spacing: 1px;
}

h1 {
    font-size: 2rem;
    border-left: 5px solid var(--primary);
    padding-left: 1rem;
    text-shadow: 2px 2px 0px rgba(255, 0, 255, 0.3);
}

h2 {
    font-size: 1.5rem;
    color: var(--primary);
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.5rem;
}

h3 {
    font-size: 1.25rem;
    color: var(--secondary);
}

a {
    color: var(--primary);
    text-decoration: none;
    border-bottom: 1px dotted var(--primary);
    transition: color 0.2s;
}

a:hover {
    color: var(--secondary);
    border-bottom-color: var(--secondary);
}

/* Lists */
ul {
    list-style: none;
    padding-left: 1rem;
}

ul li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

ul li::before {
    content: ">>";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 0.8em;
    top: 0.1em;
}

li > ul {
    margin-top: 0.5rem;
    border-left: 1px solid var(--border);
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 2rem 0;
    border: 1px solid var(--border);
    background-color: var(--surface);
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background-color: #1a1a1a;
    color: var(--primary);
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

tr:hover td {
    background-color: rgba(255, 255, 255, 0.03);
}

/* Code Blocks */
pre {
    background-color: #000;
    border: 1px solid var(--border);
    padding: 1.5rem;
    overflow-x: auto;
    margin: 2rem 0;
    position: relative;
}

pre::before {
    content: "TERMINAL_OUTPUT";
    position: absolute;
    top: 0;
    right: 0;
    background: var(--border);
    color: var(--text-dim);
    font-size: 0.7rem;
    padding: 2px 8px;
}

code {
    font-family: var(--font-mono);
    color: var(--accent);
}

p code {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 2px 6px;
    border-radius: 3px;
    color: var(--text-main);
}

/* Project Sections */
.project-section {
    border: 1px solid var(--border);
    background-color: rgba(255, 255, 255, 0.01);
    padding: 1.5rem;
    margin-bottom: 2rem;
    position: relative;
}

.project-section:hover {
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.05);
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    border: 1px solid var(--border);
    filter: grayscale(100%);
    transition: filter 0.3s;
}

img:hover {
    filter: grayscale(0%);
    border-color: var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
    header {
        margin-top: 1rem;
        padding-bottom: 1rem;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: 0.5rem;
        align-items: stretch;
    }
    
    .main-nav a {
        display: block;
        text-align: center;
        border: 1px solid var(--border);
    }
    
    .main-nav a::before {
        display: none;
    }

    h1 {
        font-size: 1.5rem;
    }
    
    th, td {
        padding: 0.5rem;
        font-size: 0.9rem;
    }
    
    ul {
        padding-left: 0;
    }
}