* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: sans-serif;
}

body {
    background-color: #201f1f; 
    color: #ffffff;
    height: 100vh;
}

.app-container {
    display: grid;
    grid-template-columns: 200px 1fr;
    grid-template-rows: 70px 1fr;
    grid-template-areas:
        "sidebar topbar"
        "sidebar main";
    height: 100vh;
}

.sidebar {
    grid-area: sidebar;
    background-color: #1b1b1b; 
    padding: 20px 10px;
}

.logo {
    font-size: 20px;
    margin-bottom: 30px;
    padding-left: 10px;
}

.nav-links {
    display: grid;
    grid-template-columns: 1fr;
    gap: 5px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    padding: 10px;
    border-radius: 8px;
    transition: background-color 0.2s;
}

.nav-links a.active, .nav-links a:hover {
    background-color: #2a2a2a; 
}

.topbar {
    grid-area: topbar;
    background-color: #1b1b1b;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    padding: 0 30px;
}

.search-bar {
    background-color: #1a2730;
    border: none;
    color: white;
    padding: 10px 20px;
    border-radius: 20px;
    width: 100%;
    max-width: 300px;
}

.login-btn {
    background-color: #1a2730;
    color: rgb(255, 255, 255);
    padding: 8px 16px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.2s;
}

.login-btn:hover {
    background-color: #2a3c4a;
}

.main-content {
    grid-area: main;
    padding: 20px 40px;
    overflow-y: scroll;
}

.music-section {
    margin-bottom: 40px;
}

.section-title {
    margin-bottom: 15px;
    font-size: 22px;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 4 naast elkaar op PC */
    gap: 20px;
}

.card {
    display: grid;
    grid-template-columns: 1fr;
    gap: 5px;
    cursor: pointer;
}

.card img {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 5px;
}

.card-title {
    font-weight: bold;
    font-size: 16px;
}

.card-desc {
    color: #999;
    font-size: 13px;
}

@media (max-width: 800px) {
    .app-container {
        grid-template-columns: 1fr;
        grid-template-rows: 70px 1fr; 
        grid-template-areas:
            "topbar"
            "main";
        height: 100vh;
    }
    
    .sidebar {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        z-index: 9999;
        height: 60px; 
        display: flex; 
        justify-content: center;
        align-items: center;
        background-color: #1b1b1b;
        border-top: 1px solid #2a2a2a;
    }
    
    .logo {
        display: none; 
    }
    
    .nav-links {
        display: flex;
        justify-content: space-around;
        align-items: center;
        width: 100%;
        gap: 5px;
    }
    
    .nav-links a {
        flex: 1; 
        padding: 10px 2px; 
        text-align: center;
        font-size: 13px; 
    }
    
    .main-content {
        padding: 20px 20px 80px 20px;
    }
    
    .cards-grid {
        grid-template-columns: repeat(2, 1fr); 
    }
}