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

body {
    font-family: 'IBM Plex Mono', monospace, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: #0a0a0a;
    color: #e0e0e0;
    line-height: 1.6;
    font-size: 18px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5vh 5vw;
}

/* Typography */
h1, h2 {
    font-weight: 700;
    letter-spacing: -0.05em;
    margin-bottom: 1rem;
}

h1 {
    font-size: 5rem;
    color: #ffffff;
    line-height: 1.1;
}

h2 {
    font-size: 2.5rem;
    color: #b0b0b0;
    margin-top: 2rem;
    border-bottom: 1px solid #333;
    padding-bottom: 0.5rem;
}

p {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

/* Sections */
header {
    margin-bottom: 4rem;
}

.main-nav {
    margin-top: 1.5rem;
}

.nav-link {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: #1a1a1a;
    border: 1px solid #333;
    border-radius: 3px;
    color: #b0b0b0;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
    margin-right: 0.8rem;
}

.nav-link:last-child {
    margin-right: 0;
}

.nav-link:hover {
    background-color: #252525;
    color: #fff;
    border-color: #444;
}

.subtitle {
    font-size: 2rem;
    color: #888;
    letter-spacing: 0.1em;
    margin-top: -0.5rem;
}

section {
    margin-bottom: 4rem;
}

ul {
    list-style-type: none;
    margin-left: 1rem;
}

li {
    margin-bottom: 1rem;
    color: #b0b0b0;
    font-size: 1.2rem;
}

li::before {
    content: "— ";
    color: #555;
}

/* Footer */
footer {
    border-top: 1px solid #333;
    padding-top: 2rem;
}

a {
    color: #b0b0b0;
    text-decoration: none;
    border-bottom: 1px solid #555;
    transition: color 0.3s ease;
}

a:hover {
    color: #ffffff;
    border-bottom-color: #ffffff;
}

.portfolio-btn {
    display: inline-block;
    margin-left: 1rem;
    padding: 0.5rem 1rem;
    background-color: #222;
    border: 1px solid #555;
    border-radius: 3px;
    color: #e0e0e0;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.portfolio-btn:hover {
    background-color: #333;
    color: #fff;
    border-color: #777;
}