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

body {
    background: #0d1117;
    color: #f0f6fc;
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
}

nav {
    background-color: #161b22;
    border-bottom: 1px solid #30363d;
    padding: 18px;
    text-align: center;
}

nav a {
    color: #f0f6fc;
    text-decoration: none;
    margin: 0 20px;
    font-weight: bold;
    transition: color 0.3s ease;
}

nav a:hover {
    color: #58a6ff;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 60px 20px;
}

.container > h1 {
    text-align: center;
}

.container > p {
    text-align: center;
}

h1 {
    font-size: 3rem;
    color: #58a6ff;
    margin-bottom: 15px;
}

h2 {
    color: #58a6ff;
    font-weight: normal;
    margin-bottom: 25px;
}

h3 {
    color: #58a6ff;
    margin-bottom: 15px;
}

p {
    color: #8b949e;
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 20px;
}

.status {
    display: inline-block;
    margin: 30px auto;
    padding: 12px 24px;
    border: 1px solid #58a6ff;
    border-radius: 8px;
    color: #58a6ff;
}

.page-header {
    text-align: center;
    padding: 70px 20px 40px;
}

.page-header p {
    max-width: 700px;
    margin: auto;
}

.content {
    max-width: 1000px;
    margin: auto;
    padding: 40px 20px;
}

.content h2 {
    color: #58a6ff;
    margin-top: 40px;
}

.content ul {
    margin-left: 25px;
    margin-bottom: 30px;
}

.content li {
    color: #c9d1d9;
    margin-bottom: 10px;
}

section {
    margin-bottom: 60px;
}

#infovis {
    margin-top: 20px;
}

.section-description {
    text-align: center;
    max-width: 850px;
    margin: 0 auto 40px auto;
}

.project-card {
    background: #161b22;
    border: 1px solid #30363d;
    border-radius: 12px;
    padding: 30px;
    margin: 30px auto;
    text-align: left;

    transition: transform 0.3s ease, border-color 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: #58a6ff;
}

.project-card h3 {
    color: #58a6ff;
}

.project-card p {
    color: #c9d1d9;
}

.button {
    display: inline-block;
    margin-top: 15px;
    padding: 12px 22px;
    background: #238636;
    color: white;
    text-decoration: none;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.button:hover {
    background: #2ea043;
}

hr {
    border: none;
    border-top: 1px solid #30363d;
    margin: 50px 0;
}

footer {
    text-align: center;
    margin-top: 60px;
    color: #6e7681;
    font-size: 0.9rem;
    padding-bottom: 20px;
}

@media (max-width: 768px) {
    
    .container {
        padding: 40px 20px;
    }
    
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.6rem;
    }
    
    nav a {
        display: inline-block;
        margin: 8px 12px;
    }
    
    .project-card {
        padding: 20px;
    }
    
}