:root {
    --bg: #0d1117;
    --card: #161b22;
    --border: #30363d;
    --text: #c9d1d9;
    --accent: #58a6ff;
    --success: #238636;
}

body { 
    background: var(--bg); 
    color: var(--text); 
    font-family: 'Segoe UI', system-ui, sans-serif; 
    line-height: 1.6; 
    margin: 0; 
    padding: 0; 
}

.container { 
    max-width: 900px; 
    margin: 0 auto; 
    padding: 2rem; 
}

header { 
    text-align: center; 
    padding: 1.5rem 1rem; /* Lekker compacte hoogte */
    background: radial-gradient(circle at center, #1e252e 0%, #0d1117 100%); 
    border-bottom: 1px solid var(--border); 
}

h1 { 
    color: var(--accent); 
    font-size: 2.2rem; 
    margin: 0; 
}

header p {
    margin: 0.3rem 0 0 0;
    font-size: 1rem;
    color: #8b949e;
}

.ad-space { 
    background: #1c2128; 
    border: 1px dashed #444; 
    margin: 2rem 0; 
    padding: 1rem; 
    text-align: center; 
    color: #666; 
    font-size: 0.8rem; 
}

section { 
    margin-bottom: 4rem; 
}

.tool-card { 
    background: var(--card); 
    border: 1px solid var(--border); 
    border-radius: 12px; 
    padding: 2rem; 
    margin-bottom: 2rem; 
    position: relative; 
}

pre { 
    background: #000; 
    padding: 1rem; 
    border-radius: 6px; 
    overflow-x: auto; 
    border: 1px solid var(--border); 
    color: #79c0ff; 
}

code { 
    font-family: 'Consolas', monospace; 
}

.btn { 
    display: inline-block; 
    background: var(--success); 
    color: white; 
    padding: 14px 28px; 
    text-decoration: none; 
    border-radius: 6px; 
    font-weight: bold; 
    margin-top: 1rem; 
}

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

.guide-box { 
    background: #161b22; 
    border-left: 4px solid var(--accent); 
    padding: 1.5rem; 
    margin: 1rem 0; 
}

footer { 
    text-align: center; 
    padding: 3rem; 
    color: #8b949e; 
    border-top: 1px solid var(--border); 
}

footer a {
    margin-left: 15px;
    text-decoration: none;
}