:root{
    --bg:#f5f7fa;
    --card:#ffffff;
    --text:#2c3e50;
    --nav:#1f2d3d;
    --accent:#3498db;
}

/* DARK THEME VARIABELEN */
body.dark{
    --bg:#12181f;
    --card:#1e2630;
    --text:#e6e9ee;
    --nav:#0d1117;
    --accent:#4aa3ff;
}

body{
    margin:0;
    font-family: 'Segoe UI', Tahoma, sans-serif;
    background:var(--bg);
    color:var(--text);
    transition:0.3s;
}

/* NAVBAR */
.navbar{
    background:var(--nav);
    padding:18px 0;
    box-shadow:0 2px 8px rgba(0,0,0,0.08);
}

.nav-container{
    width:90%;
    max-width:1200px;
    margin:auto;
    display:flex;
    justify-content:space-between;
    align-items:center;
}

.logo a{
    color:white;
    text-decoration:none;
    font-size:20px;
    font-weight:700;
}

.nav-links{
    display:flex;
    align-items:center;
    gap:20px;
}

.nav-links a{
    color:white;
    text-decoration:none;
    font-weight:500;
}

.btn-login{
    background:var(--accent);
    padding:10px 16px;
    border-radius:6px;
}

/* Dark toggle knop */
.theme-toggle{
    cursor:pointer;
    padding:8px 12px;
    border-radius:6px;
    background:#ffffff22;
    color:white;
    font-size:13px;
}

/* CONTENT */
.container{
    width:90%;
    max-width:1000px;
    margin:40px auto;
}

.card{
    background:var(--card);
    padding:30px;
    border-radius:10px;
    box-shadow:0 6px 20px rgba(0,0,0,0.07);
}

input, textarea, select{
    width:100%;
    padding:12px;
    margin:10px 0 18px 0;
    border:1px solid #ddd;
    border-radius:6px;
    font-size:14px;
    background:var(--card);
    color:var(--text);
}

button{
    padding:12px 20px;
    border:none;
    border-radius:6px;
    background:var(--nav);
    color:white;
    cursor:pointer;
}