:root {
    --bg: #ffffff;
    --text: #111;
    --card: #f5f5f5;
}

body.dark {
    --bg: #121212;
    --text: #eee;
    --card: #1e1e1e;
}

body {
    margin: 0;
    font-family: "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
}

header {
    display: flex;
    justify-content: space-between;
    padding: 15px;
    background: #0077ff;
    color: white;
}

.create-post {
    padding: 10px;
    text-align: center;
}

.create-post a {
    background: #0077ff;
    color: white;
    padding: 10px 15px;
    border-radius: 5px;
    text-decoration: none;
}

.card {
    background: var(--card);
    margin: 15px;
    padding: 15px;
    border-radius: 10px;
}

.actions {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}