*{box-sizing:border-box;margin:0;padding:0}body{color:#fff;background:#0f172a;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.container{max-width:1400px;margin:0 auto;padding:0 24px}.btn{color:#fff;cursor:pointer;background:#0ea5e9;border:none;border-radius:6px;padding:10px 20px;font-size:14px;font-weight:600}.btn:hover{background:#0284c7}.btn-green{background:#22c55e}.btn-green:hover{background:#16a34a}.btn-red{background:#ef4444}.btn-red:hover{background:#dc2626}.btn-gray{color:#94a3b8;background:#334155}.btn-gray:hover{color:#fff;background:#475569}