*{box-sizing:border-box}body{margin:0;font-family:system-ui,sans-serif;background:#14181f;color:#e7eefb}.app{display:flex;flex-direction:column;gap:12px;padding:12px;max-width:1100px;margin:0 auto}.app__main{display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap}.app__board{flex:1 1 380px;min-width:300px}.app__side{flex:1 1 300px;min-width:260px;background:#1c222c;border-radius:8px;padding:12px}.tabs{display:flex;gap:4px;margin-bottom:8px}.tabs button{flex:1}.tabs button[aria-selected=true]{background:#2e7d32;color:#fff}label{display:block;margin:4px 0}button{cursor:pointer}