* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #111;
    color: #f5f5f5;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 32px;
    border-bottom: 1px solid #333;
}

.brand {
    font-weight: bold;
    font-size: 22px;
}

nav a {
    color: #ddd;
    text-decoration: none;
    margin-left: 24px;
}

main {
    max-width: 1200px;
    margin: auto;
    padding: 40px 24px;
}

.hero {
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 12px;
}

.hero p {
    font-size: 20px;
    color: #bbb;
}

.actions {
    margin-top: 32px;
}

.button {
    display: inline-block;
    text-decoration: none;
    padding: 14px 24px;
    margin: 6px;
    border-radius: 8px;
}

.primary {
    background: white;
    color: black;
}

.secondary {
    border: 1px solid #666;
    color: white;
}

.features,
.dashboard-grid {
    display: grid;
    grid-template-columns:
        repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.card {
    padding: 24px;
    background: #1b1b1b;
    border: 1px solid #333;
    border-radius: 12px;
}

.collection {
    padding: 10px 0;
    border-bottom: 1px solid #333;
}

button {
    margin-top: 20px;
    padding: 12px 18px;
    cursor: pointer;
}